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|
/*
* Copyright (C) 2006 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.widget;
import android.R;
import android.annotation.ColorInt;
import android.annotation.DrawableRes;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.annotation.StringRes;
import android.annotation.StyleRes;
import android.annotation.XmlRes;
import android.content.ClipData;
import android.content.ClipboardManager;
import android.content.Context;
import android.content.Intent;
import android.content.UndoManager;
import android.content.res.ColorStateList;
import android.content.res.CompatibilityInfo;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.content.res.XmlResourceParser;
import android.graphics.Canvas;
import android.graphics.Insets;
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.PorterDuff;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.Typeface;
import android.graphics.drawable.Drawable;
import android.inputmethodservice.ExtractEditText;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Parcel;
import android.os.Parcelable;
import android.os.ParcelableParcel;
import android.os.SystemClock;
import android.os.UserHandle;
import android.provider.Settings;
import android.text.BoringLayout;
import android.text.DynamicLayout;
import android.text.Editable;
import android.text.GetChars;
import android.text.GraphicsOperations;
import android.text.InputFilter;
import android.text.InputType;
import android.text.Layout;
import android.text.ParcelableSpan;
import android.text.Selection;
import android.text.SpanWatcher;
import android.text.Spannable;
import android.text.SpannableString;
import android.text.SpannableStringBuilder;
import android.text.Spanned;
import android.text.SpannedString;
import android.text.StaticLayout;
import android.text.TextDirectionHeuristic;
import android.text.TextDirectionHeuristics;
import android.text.TextPaint;
import android.text.TextUtils;
import android.text.TextUtils.TruncateAt;
import android.text.TextWatcher;
import android.text.method.AllCapsTransformationMethod;
import android.text.method.ArrowKeyMovementMethod;
import android.text.method.DateKeyListener;
import android.text.method.DateTimeKeyListener;
import android.text.method.DialerKeyListener;
import android.text.method.DigitsKeyListener;
import android.text.method.KeyListener;
import android.text.method.LinkMovementMethod;
import android.text.method.MetaKeyKeyListener;
import android.text.method.MovementMethod;
import android.text.method.PasswordTransformationMethod;
import android.text.method.SingleLineTransformationMethod;
import android.text.method.TextKeyListener;
import android.text.method.TimeKeyListener;
import android.text.method.TransformationMethod;
import android.text.method.TransformationMethod2;
import android.text.method.WordIterator;
import android.text.style.CharacterStyle;
import android.text.style.ClickableSpan;
import android.text.style.ParagraphStyle;
import android.text.style.SpellCheckSpan;
import android.text.style.SuggestionSpan;
import android.text.style.URLSpan;
import android.text.style.UpdateAppearance;
import android.text.util.Linkify;
import android.util.AttributeSet;
import android.util.Log;
import android.util.TypedValue;
import android.view.AccessibilityIterators.TextSegmentIterator;
import android.view.ActionMode;
import android.view.Choreographer;
import android.view.DragEvent;
import android.view.Gravity;
import android.view.HapticFeedbackConstants;
import android.view.KeyCharacterMap;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewAssistStructure;
import android.view.ViewConfiguration;
import android.view.ViewDebug;
import android.view.ViewGroup.LayoutParams;
import android.view.ViewRootImpl;
import android.view.ViewTreeObserver;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityManager;
import android.view.accessibility.AccessibilityNodeInfo;
import android.view.animation.AnimationUtils;
import android.view.inputmethod.BaseInputConnection;
import android.view.inputmethod.CompletionInfo;
import android.view.inputmethod.CorrectionInfo;
import android.view.inputmethod.EditorInfo;
import android.view.inputmethod.ExtractedText;
import android.view.inputmethod.ExtractedTextRequest;
import android.view.inputmethod.InputConnection;
import android.view.inputmethod.InputMethodManager;
import android.view.textservice.SpellCheckerSubtype;
import android.view.textservice.TextServicesManager;
import android.widget.RemoteViews.RemoteView;
import com.android.internal.util.FastMath;
import com.android.internal.widget.EditableInputConnection;
import org.xmlpull.v1.XmlPullParserException;
import java.io.IOException;
import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.Locale;
import static android.os.Build.VERSION_CODES.JELLY_BEAN_MR1;
/**
* Displays text to the user and optionally allows them to edit it. A TextView
* is a complete text editor, however the basic class is configured to not
* allow editing; see {@link EditText} for a subclass that configures the text
* view for editing.
*
* <p>
* To allow users to copy some or all of the TextView's value and paste it somewhere else, set the
* XML attribute {@link android.R.styleable#TextView_textIsSelectable
* android:textIsSelectable} to "true" or call
* {@link #setTextIsSelectable setTextIsSelectable(true)}. The {@code textIsSelectable} flag
* allows users to make selection gestures in the TextView, which in turn triggers the system's
* built-in copy/paste controls.
* <p>
* <b>XML attributes</b>
* <p>
* See {@link android.R.styleable#TextView TextView Attributes},
* {@link android.R.styleable#View View Attributes}
*
* @attr ref android.R.styleable#TextView_text
* @attr ref android.R.styleable#TextView_bufferType
* @attr ref android.R.styleable#TextView_hint
* @attr ref android.R.styleable#TextView_textColor
* @attr ref android.R.styleable#TextView_textColorHighlight
* @attr ref android.R.styleable#TextView_textColorHint
* @attr ref android.R.styleable#TextView_textAppearance
* @attr ref android.R.styleable#TextView_textColorLink
* @attr ref android.R.styleable#TextView_textSize
* @attr ref android.R.styleable#TextView_textScaleX
* @attr ref android.R.styleable#TextView_fontFamily
* @attr ref android.R.styleable#TextView_typeface
* @attr ref android.R.styleable#TextView_textStyle
* @attr ref android.R.styleable#TextView_cursorVisible
* @attr ref android.R.styleable#TextView_maxLines
* @attr ref android.R.styleable#TextView_maxHeight
* @attr ref android.R.styleable#TextView_lines
* @attr ref android.R.styleable#TextView_height
* @attr ref android.R.styleable#TextView_minLines
* @attr ref android.R.styleable#TextView_minHeight
* @attr ref android.R.styleable#TextView_maxEms
* @attr ref android.R.styleable#TextView_maxWidth
* @attr ref android.R.styleable#TextView_ems
* @attr ref android.R.styleable#TextView_width
* @attr ref android.R.styleable#TextView_minEms
* @attr ref android.R.styleable#TextView_minWidth
* @attr ref android.R.styleable#TextView_gravity
* @attr ref android.R.styleable#TextView_scrollHorizontally
* @attr ref android.R.styleable#TextView_password
* @attr ref android.R.styleable#TextView_singleLine
* @attr ref android.R.styleable#TextView_selectAllOnFocus
* @attr ref android.R.styleable#TextView_includeFontPadding
* @attr ref android.R.styleable#TextView_maxLength
* @attr ref android.R.styleable#TextView_shadowColor
* @attr ref android.R.styleable#TextView_shadowDx
* @attr ref android.R.styleable#TextView_shadowDy
* @attr ref android.R.styleable#TextView_shadowRadius
* @attr ref android.R.styleable#TextView_autoLink
* @attr ref android.R.styleable#TextView_linksClickable
* @attr ref android.R.styleable#TextView_numeric
* @attr ref android.R.styleable#TextView_digits
* @attr ref android.R.styleable#TextView_phoneNumber
* @attr ref android.R.styleable#TextView_inputMethod
* @attr ref android.R.styleable#TextView_capitalize
* @attr ref android.R.styleable#TextView_autoText
* @attr ref android.R.styleable#TextView_editable
* @attr ref android.R.styleable#TextView_freezesText
* @attr ref android.R.styleable#TextView_ellipsize
* @attr ref android.R.styleable#TextView_drawableTop
* @attr ref android.R.styleable#TextView_drawableBottom
* @attr ref android.R.styleable#TextView_drawableRight
* @attr ref android.R.styleable#TextView_drawableLeft
* @attr ref android.R.styleable#TextView_drawableStart
* @attr ref android.R.styleable#TextView_drawableEnd
* @attr ref android.R.styleable#TextView_drawablePadding
* @attr ref android.R.styleable#TextView_drawableTint
* @attr ref android.R.styleable#TextView_drawableTintMode
* @attr ref android.R.styleable#TextView_lineSpacingExtra
* @attr ref android.R.styleable#TextView_lineSpacingMultiplier
* @attr ref android.R.styleable#TextView_marqueeRepeatLimit
* @attr ref android.R.styleable#TextView_inputType
* @attr ref android.R.styleable#TextView_imeOptions
* @attr ref android.R.styleable#TextView_privateImeOptions
* @attr ref android.R.styleable#TextView_imeActionLabel
* @attr ref android.R.styleable#TextView_imeActionId
* @attr ref android.R.styleable#TextView_editorExtras
* @attr ref android.R.styleable#TextView_elegantTextHeight
* @attr ref android.R.styleable#TextView_letterSpacing
* @attr ref android.R.styleable#TextView_fontFeatureSettings
*/
@RemoteView
public class TextView extends View implements ViewTreeObserver.OnPreDrawListener {
static final String LOG_TAG = "TextView";
static final boolean DEBUG_EXTRACT = false;
// Enum for the "typeface" XML parameter.
// TODO: How can we get this from the XML instead of hardcoding it here?
private static final int SANS = 1;
private static final int SERIF = 2;
private static final int MONOSPACE = 3;
// Bitfield for the "numeric" XML parameter.
// TODO: How can we get this from the XML instead of hardcoding it here?
private static final int SIGNED = 2;
private static final int DECIMAL = 4;
/**
* Draw marquee text with fading edges as usual
*/
private static final int MARQUEE_FADE_NORMAL = 0;
/**
* Draw marquee text as ellipsize end while inactive instead of with the fade.
* (Useful for devices where the fade can be expensive if overdone)
*/
private static final int MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS = 1;
/**
* Draw marquee text with fading edges because it is currently active/animating.
*/
private static final int MARQUEE_FADE_SWITCH_SHOW_FADE = 2;
private static final int LINES = 1;
private static final int EMS = LINES;
private static final int PIXELS = 2;
private static final RectF TEMP_RECTF = new RectF();
// XXX should be much larger
private static final int VERY_WIDE = 1024*1024;
private static final int ANIMATED_SCROLL_GAP = 250;
private static final InputFilter[] NO_FILTERS = new InputFilter[0];
private static final Spanned EMPTY_SPANNED = new SpannedString("");
private static final int CHANGE_WATCHER_PRIORITY = 100;
// New state used to change background based on whether this TextView is multiline.
private static final int[] MULTILINE_STATE_SET = { R.attr.state_multiline };
// System wide time for last cut or copy action.
static long LAST_CUT_OR_COPY_TIME;
/**
* @hide
*/
static final int PROCESS_TEXT_REQUEST_CODE = 100;
private ColorStateList mTextColor;
private ColorStateList mHintTextColor;
private ColorStateList mLinkTextColor;
@ViewDebug.ExportedProperty(category = "text")
private int mCurTextColor;
private int mCurHintTextColor;
private boolean mFreezesText;
private boolean mDispatchTemporaryDetach;
/** Whether this view is temporarily detached from the parent view. */
boolean mTemporaryDetach;
private Editable.Factory mEditableFactory = Editable.Factory.getInstance();
private Spannable.Factory mSpannableFactory = Spannable.Factory.getInstance();
private float mShadowRadius, mShadowDx, mShadowDy;
private int mShadowColor;
private boolean mPreDrawRegistered;
private boolean mPreDrawListenerDetached;
// A flag to prevent repeated movements from escaping the enclosing text view. The idea here is
// that if a user is holding down a movement key to traverse text, we shouldn't also traverse
// the view hierarchy. On the other hand, if the user is using the movement key to traverse views
// (i.e. the first movement was to traverse out of this view, or this view was traversed into by
// the user holding the movement key down) then we shouldn't prevent the focus from changing.
private boolean mPreventDefaultMovement;
private TextUtils.TruncateAt mEllipsize;
static class Drawables {
static final int LEFT = 0;
static final int TOP = 1;
static final int RIGHT = 2;
static final int BOTTOM = 3;
static final int DRAWABLE_NONE = -1;
static final int DRAWABLE_RIGHT = 0;
static final int DRAWABLE_LEFT = 1;
final Rect mCompoundRect = new Rect();
final Drawable[] mShowing = new Drawable[4];
ColorStateList mTintList;
PorterDuff.Mode mTintMode;
boolean mHasTint;
boolean mHasTintMode;
Drawable mDrawableStart, mDrawableEnd, mDrawableError, mDrawableTemp;
Drawable mDrawableLeftInitial, mDrawableRightInitial;
boolean mIsRtlCompatibilityMode;
boolean mOverride;
int mDrawableSizeTop, mDrawableSizeBottom, mDrawableSizeLeft, mDrawableSizeRight,
mDrawableSizeStart, mDrawableSizeEnd, mDrawableSizeError, mDrawableSizeTemp;
int mDrawableWidthTop, mDrawableWidthBottom, mDrawableHeightLeft, mDrawableHeightRight,
mDrawableHeightStart, mDrawableHeightEnd, mDrawableHeightError, mDrawableHeightTemp;
int mDrawablePadding;
int mDrawableSaved = DRAWABLE_NONE;
public Drawables(Context context) {
final int targetSdkVersion = context.getApplicationInfo().targetSdkVersion;
mIsRtlCompatibilityMode = (targetSdkVersion < JELLY_BEAN_MR1 ||
!context.getApplicationInfo().hasRtlSupport());
mOverride = false;
}
public void resolveWithLayoutDirection(int layoutDirection) {
// First reset "left" and "right" drawables to their initial values
mShowing[Drawables.LEFT] = mDrawableLeftInitial;
mShowing[Drawables.RIGHT] = mDrawableRightInitial;
if (mIsRtlCompatibilityMode) {
// Use "start" drawable as "left" drawable if the "left" drawable was not defined
if (mDrawableStart != null && mShowing[Drawables.LEFT] == null) {
mShowing[Drawables.LEFT] = mDrawableStart;
mDrawableSizeLeft = mDrawableSizeStart;
mDrawableHeightLeft = mDrawableHeightStart;
}
// Use "end" drawable as "right" drawable if the "right" drawable was not defined
if (mDrawableEnd != null && mShowing[Drawables.RIGHT] == null) {
mShowing[Drawables.RIGHT] = mDrawableEnd;
mDrawableSizeRight = mDrawableSizeEnd;
mDrawableHeightRight = mDrawableHeightEnd;
}
} else {
// JB-MR1+ normal case: "start" / "end" drawables are overriding "left" / "right"
// drawable if and only if they have been defined
switch(layoutDirection) {
case LAYOUT_DIRECTION_RTL:
if (mOverride) {
mShowing[Drawables.RIGHT] = mDrawableStart;
mDrawableSizeRight = mDrawableSizeStart;
mDrawableHeightRight = mDrawableHeightStart;
mShowing[Drawables.LEFT] = mDrawableEnd;
mDrawableSizeLeft = mDrawableSizeEnd;
mDrawableHeightLeft = mDrawableHeightEnd;
}
break;
case LAYOUT_DIRECTION_LTR:
default:
if (mOverride) {
mShowing[Drawables.LEFT] = mDrawableStart;
mDrawableSizeLeft = mDrawableSizeStart;
mDrawableHeightLeft = mDrawableHeightStart;
mShowing[Drawables.RIGHT] = mDrawableEnd;
mDrawableSizeRight = mDrawableSizeEnd;
mDrawableHeightRight = mDrawableHeightEnd;
}
break;
}
}
applyErrorDrawableIfNeeded(layoutDirection);
updateDrawablesLayoutDirection(layoutDirection);
}
private void updateDrawablesLayoutDirection(int layoutDirection) {
for (Drawable dr : mShowing) {
if (dr != null) {
dr.setLayoutDirection(layoutDirection);
}
}
}
public void setErrorDrawable(Drawable dr, TextView tv) {
if (mDrawableError != dr && mDrawableError != null) {
mDrawableError.setCallback(null);
}
mDrawableError = dr;
if (mDrawableError != null) {
final Rect compoundRect = mCompoundRect;
final int[] state = tv.getDrawableState();
mDrawableError.setState(state);
mDrawableError.copyBounds(compoundRect);
mDrawableError.setCallback(tv);
mDrawableSizeError = compoundRect.width();
mDrawableHeightError = compoundRect.height();
} else {
mDrawableSizeError = mDrawableHeightError = 0;
}
}
private void applyErrorDrawableIfNeeded(int layoutDirection) {
// first restore the initial state if needed
switch (mDrawableSaved) {
case DRAWABLE_LEFT:
mShowing[Drawables.LEFT] = mDrawableTemp;
mDrawableSizeLeft = mDrawableSizeTemp;
mDrawableHeightLeft = mDrawableHeightTemp;
break;
case DRAWABLE_RIGHT:
mShowing[Drawables.RIGHT] = mDrawableTemp;
mDrawableSizeRight = mDrawableSizeTemp;
mDrawableHeightRight = mDrawableHeightTemp;
break;
case DRAWABLE_NONE:
default:
}
// then, if needed, assign the Error drawable to the correct location
if (mDrawableError != null) {
switch(layoutDirection) {
case LAYOUT_DIRECTION_RTL:
mDrawableSaved = DRAWABLE_LEFT;
mDrawableTemp = mShowing[Drawables.LEFT];
mDrawableSizeTemp = mDrawableSizeLeft;
mDrawableHeightTemp = mDrawableHeightLeft;
mShowing[Drawables.LEFT] = mDrawableError;
mDrawableSizeLeft = mDrawableSizeError;
mDrawableHeightLeft = mDrawableHeightError;
break;
case LAYOUT_DIRECTION_LTR:
default:
mDrawableSaved = DRAWABLE_RIGHT;
mDrawableTemp = mShowing[Drawables.RIGHT];
mDrawableSizeTemp = mDrawableSizeRight;
mDrawableHeightTemp = mDrawableHeightRight;
mShowing[Drawables.RIGHT] = mDrawableError;
mDrawableSizeRight = mDrawableSizeError;
mDrawableHeightRight = mDrawableHeightError;
break;
}
}
}
}
Drawables mDrawables;
private CharWrapper mCharWrapper;
private Marquee mMarquee;
private boolean mRestartMarquee;
private int mMarqueeRepeatLimit = 3;
private int mLastLayoutDirection = -1;
/**
* On some devices the fading edges add a performance penalty if used
* extensively in the same layout. This mode indicates how the marquee
* is currently being shown, if applicable. (mEllipsize will == MARQUEE)
*/
private int mMarqueeFadeMode = MARQUEE_FADE_NORMAL;
/**
* When mMarqueeFadeMode is not MARQUEE_FADE_NORMAL, this stores
* the layout that should be used when the mode switches.
*/
private Layout mSavedMarqueeModeLayout;
@ViewDebug.ExportedProperty(category = "text")
private CharSequence mText;
private CharSequence mTransformed;
private BufferType mBufferType = BufferType.NORMAL;
private CharSequence mHint;
private Layout mHintLayout;
private MovementMethod mMovement;
private TransformationMethod mTransformation;
private boolean mAllowTransformationLengthChange;
private ChangeWatcher mChangeWatcher;
private ArrayList<TextWatcher> mListeners;
// display attributes
private final TextPaint mTextPaint;
private boolean mUserSetTextScaleX;
private Layout mLayout;
private boolean mLocaleChanged = false;
@ViewDebug.ExportedProperty(category = "text")
private int mGravity = Gravity.TOP | Gravity.START;
private boolean mHorizontallyScrolling;
private int mAutoLinkMask;
private boolean mLinksClickable = true;
private float mSpacingMult = 1.0f;
private float mSpacingAdd = 0.0f;
private int mBreakStrategy;
private int mMaximum = Integer.MAX_VALUE;
private int mMaxMode = LINES;
private int mMinimum = 0;
private int mMinMode = LINES;
private int mOldMaximum = mMaximum;
private int mOldMaxMode = mMaxMode;
private int mMaxWidth = Integer.MAX_VALUE;
private int mMaxWidthMode = PIXELS;
private int mMinWidth = 0;
private int mMinWidthMode = PIXELS;
private boolean mSingleLine;
private int mDesiredHeightAtMeasure = -1;
private boolean mIncludePad = true;
private int mDeferScroll = -1;
// tmp primitives, so we don't alloc them on each draw
private Rect mTempRect;
private long mLastScroll;
private Scroller mScroller;
private BoringLayout.Metrics mBoring, mHintBoring;
private BoringLayout mSavedLayout, mSavedHintLayout;
private TextDirectionHeuristic mTextDir;
private InputFilter[] mFilters = NO_FILTERS;
private volatile Locale mCurrentSpellCheckerLocaleCache;
// It is possible to have a selection even when mEditor is null (programmatically set, like when
// a link is pressed). These highlight-related fields do not go in mEditor.
int mHighlightColor = 0x6633B5E5;
private Path mHighlightPath;
private final Paint mHighlightPaint;
private boolean mHighlightPathBogus = true;
// Although these fields are specific to editable text, they are not added to Editor because
// they are defined by the TextView's style and are theme-dependent.
int mCursorDrawableRes;
// These four fields, could be moved to Editor, since we know their default values and we
// could condition the creation of the Editor to a non standard value. This is however
// brittle since the hardcoded values here (such as
// com.android.internal.R.drawable.text_select_handle_left) would have to be updated if the
// default style is modified.
int mTextSelectHandleLeftRes;
int mTextSelectHandleRightRes;
int mTextSelectHandleRes;
int mTextEditSuggestionItemLayout;
/**
* EditText specific data, created on demand when one of the Editor fields is used.
* See {@link #createEditorIfNeeded()}.
*/
private Editor mEditor;
/*
* Kick-start the font cache for the zygote process (to pay the cost of
* initializing freetype for our default font only once).
*/
static {
Paint p = new Paint();
p.setAntiAlias(true);
// We don't care about the result, just the side-effect of measuring.
p.measureText("H");
}
/**
* Interface definition for a callback to be invoked when an action is
* performed on the editor.
*/
public interface OnEditorActionListener {
/**
* Called when an action is being performed.
*
* @param v The view that was clicked.
* @param actionId Identifier of the action. This will be either the
* identifier you supplied, or {@link EditorInfo#IME_NULL
* EditorInfo.IME_NULL} if being called due to the enter key
* being pressed.
* @param event If triggered by an enter key, this is the event;
* otherwise, this is null.
* @return Return true if you have consumed the action, else false.
*/
boolean onEditorAction(TextView v, int actionId, KeyEvent event);
}
public TextView(Context context) {
this(context, null);
}
public TextView(Context context, @Nullable AttributeSet attrs) {
this(context, attrs, com.android.internal.R.attr.textViewStyle);
}
public TextView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
this(context, attrs, defStyleAttr, 0);
}
@SuppressWarnings("deprecation")
public TextView(
Context context, @Nullable AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
mText = "";
final Resources res = getResources();
final CompatibilityInfo compat = res.getCompatibilityInfo();
mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG);
mTextPaint.density = res.getDisplayMetrics().density;
mTextPaint.setCompatibilityScaling(compat.applicationScale);
mHighlightPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
mHighlightPaint.setCompatibilityScaling(compat.applicationScale);
mMovement = getDefaultMovementMethod();
mTransformation = null;
int textColorHighlight = 0;
ColorStateList textColor = null;
ColorStateList textColorHint = null;
ColorStateList textColorLink = null;
int textSize = 15;
String fontFamily = null;
boolean fontFamilyExplicit = false;
int typefaceIndex = -1;
int styleIndex = -1;
boolean allCaps = false;
int shadowcolor = 0;
float dx = 0, dy = 0, r = 0;
boolean elegant = false;
float letterSpacing = 0;
String fontFeatureSettings = null;
mBreakStrategy = Layout.BREAK_STRATEGY_SIMPLE;
final Resources.Theme theme = context.getTheme();
/*
* Look the appearance up without checking first if it exists because
* almost every TextView has one and it greatly simplifies the logic
* to be able to parse the appearance first and then let specific tags
* for this View override it.
*/
TypedArray a = theme.obtainStyledAttributes(attrs,
com.android.internal.R.styleable.TextViewAppearance, defStyleAttr, defStyleRes);
TypedArray appearance = null;
int ap = a.getResourceId(
com.android.internal.R.styleable.TextViewAppearance_textAppearance, -1);
a.recycle();
if (ap != -1) {
appearance = theme.obtainStyledAttributes(
ap, com.android.internal.R.styleable.TextAppearance);
}
if (appearance != null) {
int n = appearance.getIndexCount();
for (int i = 0; i < n; i++) {
int attr = appearance.getIndex(i);
switch (attr) {
case com.android.internal.R.styleable.TextAppearance_textColorHighlight:
textColorHighlight = appearance.getColor(attr, textColorHighlight);
break;
case com.android.internal.R.styleable.TextAppearance_textColor:
textColor = appearance.getColorStateList(attr);
break;
case com.android.internal.R.styleable.TextAppearance_textColorHint:
textColorHint = appearance.getColorStateList(attr);
break;
case com.android.internal.R.styleable.TextAppearance_textColorLink:
textColorLink = appearance.getColorStateList(attr);
break;
case com.android.internal.R.styleable.TextAppearance_textSize:
textSize = appearance.getDimensionPixelSize(attr, textSize);
break;
case com.android.internal.R.styleable.TextAppearance_typeface:
typefaceIndex = appearance.getInt(attr, -1);
break;
case com.android.internal.R.styleable.TextAppearance_fontFamily:
fontFamily = appearance.getString(attr);
break;
case com.android.internal.R.styleable.TextAppearance_textStyle:
styleIndex = appearance.getInt(attr, -1);
break;
case com.android.internal.R.styleable.TextAppearance_textAllCaps:
allCaps = appearance.getBoolean(attr, false);
break;
case com.android.internal.R.styleable.TextAppearance_shadowColor:
shadowcolor = appearance.getInt(attr, 0);
break;
case com.android.internal.R.styleable.TextAppearance_shadowDx:
dx = appearance.getFloat(attr, 0);
break;
case com.android.internal.R.styleable.TextAppearance_shadowDy:
dy = appearance.getFloat(attr, 0);
break;
case com.android.internal.R.styleable.TextAppearance_shadowRadius:
r = appearance.getFloat(attr, 0);
break;
case com.android.internal.R.styleable.TextAppearance_elegantTextHeight:
elegant = appearance.getBoolean(attr, false);
break;
case com.android.internal.R.styleable.TextAppearance_letterSpacing:
letterSpacing = appearance.getFloat(attr, 0);
break;
case com.android.internal.R.styleable.TextAppearance_fontFeatureSettings:
fontFeatureSettings = appearance.getString(attr);
break;
}
}
appearance.recycle();
}
boolean editable = getDefaultEditable();
CharSequence inputMethod = null;
int numeric = 0;
CharSequence digits = null;
boolean phone = false;
boolean autotext = false;
int autocap = -1;
int buffertype = 0;
boolean selectallonfocus = false;
Drawable drawableLeft = null, drawableTop = null, drawableRight = null,
drawableBottom = null, drawableStart = null, drawableEnd = null;
ColorStateList drawableTint = null;
PorterDuff.Mode drawableTintMode = null;
int drawablePadding = 0;
int ellipsize = -1;
boolean singleLine = false;
int maxlength = -1;
CharSequence text = "";
CharSequence hint = null;
boolean password = false;
int inputType = EditorInfo.TYPE_NULL;
a = theme.obtainStyledAttributes(
attrs, com.android.internal.R.styleable.TextView, defStyleAttr, defStyleRes);
int n = a.getIndexCount();
for (int i = 0; i < n; i++) {
int attr = a.getIndex(i);
switch (attr) {
case com.android.internal.R.styleable.TextView_editable:
editable = a.getBoolean(attr, editable);
break;
case com.android.internal.R.styleable.TextView_inputMethod:
inputMethod = a.getText(attr);
break;
case com.android.internal.R.styleable.TextView_numeric:
numeric = a.getInt(attr, numeric);
break;
case com.android.internal.R.styleable.TextView_digits:
digits = a.getText(attr);
break;
case com.android.internal.R.styleable.TextView_phoneNumber:
phone = a.getBoolean(attr, phone);
break;
case com.android.internal.R.styleable.TextView_autoText:
autotext = a.getBoolean(attr, autotext);
break;
case com.android.internal.R.styleable.TextView_capitalize:
autocap = a.getInt(attr, autocap);
break;
case com.android.internal.R.styleable.TextView_bufferType:
buffertype = a.getInt(attr, buffertype);
break;
case com.android.internal.R.styleable.TextView_selectAllOnFocus:
selectallonfocus = a.getBoolean(attr, selectallonfocus);
break;
case com.android.internal.R.styleable.TextView_autoLink:
mAutoLinkMask = a.getInt(attr, 0);
break;
case com.android.internal.R.styleable.TextView_linksClickable:
mLinksClickable = a.getBoolean(attr, true);
break;
case com.android.internal.R.styleable.TextView_drawableLeft:
drawableLeft = a.getDrawable(attr);
break;
case com.android.internal.R.styleable.TextView_drawableTop:
drawableTop = a.getDrawable(attr);
break;
case com.android.internal.R.styleable.TextView_drawableRight:
drawableRight = a.getDrawable(attr);
break;
case com.android.internal.R.styleable.TextView_drawableBottom:
drawableBottom = a.getDrawable(attr);
break;
case com.android.internal.R.styleable.TextView_drawableStart:
drawableStart = a.getDrawable(attr);
break;
case com.android.internal.R.styleable.TextView_drawableEnd:
drawableEnd = a.getDrawable(attr);
break;
case com.android.internal.R.styleable.TextView_drawableTint:
drawableTint = a.getColorStateList(attr);
break;
case com.android.internal.R.styleable.TextView_drawableTintMode:
drawableTintMode = Drawable.parseTintMode(a.getInt(attr, -1), drawableTintMode);
break;
case com.android.internal.R.styleable.TextView_drawablePadding:
drawablePadding = a.getDimensionPixelSize(attr, drawablePadding);
break;
case com.android.internal.R.styleable.TextView_maxLines:
setMaxLines(a.getInt(attr, -1));
break;
case com.android.internal.R.styleable.TextView_maxHeight:
setMaxHeight(a.getDimensionPixelSize(attr, -1));
break;
case com.android.internal.R.styleable.TextView_lines:
setLines(a.getInt(attr, -1));
break;
case com.android.internal.R.styleable.TextView_height:
setHeight(a.getDimensionPixelSize(attr, -1));
break;
case com.android.internal.R.styleable.TextView_minLines:
setMinLines(a.getInt(attr, -1));
break;
case com.android.internal.R.styleable.TextView_minHeight:
setMinHeight(a.getDimensionPixelSize(attr, -1));
break;
case com.android.internal.R.styleable.TextView_maxEms:
setMaxEms(a.getInt(attr, -1));
break;
case com.android.internal.R.styleable.TextView_maxWidth:
setMaxWidth(a.getDimensionPixelSize(attr, -1));
break;
case com.android.internal.R.styleable.TextView_ems:
setEms(a.getInt(attr, -1));
break;
case com.android.internal.R.styleable.TextView_width:
setWidth(a.getDimensionPixelSize(attr, -1));
break;
case com.android.internal.R.styleable.TextView_minEms:
setMinEms(a.getInt(attr, -1));
break;
case com.android.internal.R.styleable.TextView_minWidth:
setMinWidth(a.getDimensionPixelSize(attr, -1));
break;
case com.android.internal.R.styleable.TextView_gravity:
setGravity(a.getInt(attr, -1));
break;
case com.android.internal.R.styleable.TextView_hint:
hint = a.getText(attr);
break;
case com.android.internal.R.styleable.TextView_text:
text = a.getText(attr);
break;
case com.android.internal.R.styleable.TextView_scrollHorizontally:
if (a.getBoolean(attr, false)) {
setHorizontallyScrolling(true);
}
break;
case com.android.internal.R.styleable.TextView_singleLine:
singleLine = a.getBoolean(attr, singleLine);
break;
case com.android.internal.R.styleable.TextView_ellipsize:
ellipsize = a.getInt(attr, ellipsize);
break;
case com.android.internal.R.styleable.TextView_marqueeRepeatLimit:
setMarqueeRepeatLimit(a.getInt(attr, mMarqueeRepeatLimit));
break;
case com.android.internal.R.styleable.TextView_includeFontPadding:
if (!a.getBoolean(attr, true)) {
setIncludeFontPadding(false);
}
break;
case com.android.internal.R.styleable.TextView_cursorVisible:
if (!a.getBoolean(attr, true)) {
setCursorVisible(false);
}
break;
case com.android.internal.R.styleable.TextView_maxLength:
maxlength = a.getInt(attr, -1);
break;
case com.android.internal.R.styleable.TextView_textScaleX:
setTextScaleX(a.getFloat(attr, 1.0f));
break;
case com.android.internal.R.styleable.TextView_freezesText:
mFreezesText = a.getBoolean(attr, false);
break;
case com.android.internal.R.styleable.TextView_shadowColor:
shadowcolor = a.getInt(attr, 0);
break;
case com.android.internal.R.styleable.TextView_shadowDx:
dx = a.getFloat(attr, 0);
break;
case com.android.internal.R.styleable.TextView_shadowDy:
dy = a.getFloat(attr, 0);
break;
case com.android.internal.R.styleable.TextView_shadowRadius:
r = a.getFloat(attr, 0);
break;
case com.android.internal.R.styleable.TextView_enabled:
setEnabled(a.getBoolean(attr, isEnabled()));
break;
case com.android.internal.R.styleable.TextView_textColorHighlight:
textColorHighlight = a.getColor(attr, textColorHighlight);
break;
case com.android.internal.R.styleable.TextView_textColor:
textColor = a.getColorStateList(attr);
break;
case com.android.internal.R.styleable.TextView_textColorHint:
textColorHint = a.getColorStateList(attr);
break;
case com.android.internal.R.styleable.TextView_textColorLink:
textColorLink = a.getColorStateList(attr);
break;
case com.android.internal.R.styleable.TextView_textSize:
textSize = a.getDimensionPixelSize(attr, textSize);
break;
case com.android.internal.R.styleable.TextView_typeface:
typefaceIndex = a.getInt(attr, typefaceIndex);
break;
case com.android.internal.R.styleable.TextView_textStyle:
styleIndex = a.getInt(attr, styleIndex);
break;
case com.android.internal.R.styleable.TextView_fontFamily:
fontFamily = a.getString(attr);
fontFamilyExplicit = true;
break;
case com.android.internal.R.styleable.TextView_password:
password = a.getBoolean(attr, password);
break;
case com.android.internal.R.styleable.TextView_lineSpacingExtra:
mSpacingAdd = a.getDimensionPixelSize(attr, (int) mSpacingAdd);
break;
case com.android.internal.R.styleable.TextView_lineSpacingMultiplier:
mSpacingMult = a.getFloat(attr, mSpacingMult);
break;
case com.android.internal.R.styleable.TextView_inputType:
inputType = a.getInt(attr, EditorInfo.TYPE_NULL);
break;
case com.android.internal.R.styleable.TextView_allowUndo:
createEditorIfNeeded();
mEditor.mAllowUndo = a.getBoolean(attr, true);
break;
case com.android.internal.R.styleable.TextView_imeOptions:
createEditorIfNeeded();
mEditor.createInputContentTypeIfNeeded();
mEditor.mInputContentType.imeOptions = a.getInt(attr,
mEditor.mInputContentType.imeOptions);
break;
case com.android.internal.R.styleable.TextView_imeActionLabel:
createEditorIfNeeded();
mEditor.createInputContentTypeIfNeeded();
mEditor.mInputContentType.imeActionLabel = a.getText(attr);
break;
case com.android.internal.R.styleable.TextView_imeActionId:
createEditorIfNeeded();
mEditor.createInputContentTypeIfNeeded();
mEditor.mInputContentType.imeActionId = a.getInt(attr,
mEditor.mInputContentType.imeActionId);
break;
case com.android.internal.R.styleable.TextView_privateImeOptions:
setPrivateImeOptions(a.getString(attr));
break;
case com.android.internal.R.styleable.TextView_editorExtras:
try {
setInputExtras(a.getResourceId(attr, 0));
} catch (XmlPullParserException e) {
Log.w(LOG_TAG, "Failure reading input extras", e);
} catch (IOException e) {
Log.w(LOG_TAG, "Failure reading input extras", e);
}
break;
case com.android.internal.R.styleable.TextView_textCursorDrawable:
mCursorDrawableRes = a.getResourceId(attr, 0);
break;
case com.android.internal.R.styleable.TextView_textSelectHandleLeft:
mTextSelectHandleLeftRes = a.getResourceId(attr, 0);
break;
case com.android.internal.R.styleable.TextView_textSelectHandleRight:
mTextSelectHandleRightRes = a.getResourceId(attr, 0);
break;
case com.android.internal.R.styleable.TextView_textSelectHandle:
mTextSelectHandleRes = a.getResourceId(attr, 0);
break;
case com.android.internal.R.styleable.TextView_textEditSuggestionItemLayout:
mTextEditSuggestionItemLayout = a.getResourceId(attr, 0);
break;
case com.android.internal.R.styleable.TextView_textIsSelectable:
setTextIsSelectable(a.getBoolean(attr, false));
break;
case com.android.internal.R.styleable.TextView_textAllCaps:
allCaps = a.getBoolean(attr, false);
break;
case com.android.internal.R.styleable.TextView_elegantTextHeight:
elegant = a.getBoolean(attr, false);
break;
case com.android.internal.R.styleable.TextView_letterSpacing:
letterSpacing = a.getFloat(attr, 0);
break;
case com.android.internal.R.styleable.TextView_fontFeatureSettings:
fontFeatureSettings = a.getString(attr);
break;
case com.android.internal.R.styleable.TextView_breakStrategy:
mBreakStrategy = a.getInt(attr, Layout.BREAK_STRATEGY_SIMPLE);
}
}
a.recycle();
BufferType bufferType = BufferType.EDITABLE;
final int variation =
inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION);
final boolean passwordInputType = variation
== (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD);
final boolean webPasswordInputType = variation
== (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD);
final boolean numberPasswordInputType = variation
== (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD);
if (inputMethod != null) {
Class<?> c;
try {
c = Class.forName(inputMethod.toString());
} catch (ClassNotFoundException ex) {
throw new RuntimeException(ex);
}
try {
createEditorIfNeeded();
mEditor.mKeyListener = (KeyListener) c.newInstance();
} catch (InstantiationException ex) {
throw new RuntimeException(ex);
} catch (IllegalAccessException ex) {
throw new RuntimeException(ex);
}
try {
mEditor.mInputType = inputType != EditorInfo.TYPE_NULL
? inputType
: mEditor.mKeyListener.getInputType();
} catch (IncompatibleClassChangeError e) {
mEditor.mInputType = EditorInfo.TYPE_CLASS_TEXT;
}
} else if (digits != null) {
createEditorIfNeeded();
mEditor.mKeyListener = DigitsKeyListener.getInstance(digits.toString());
// If no input type was specified, we will default to generic
// text, since we can't tell the IME about the set of digits
// that was selected.
mEditor.mInputType = inputType != EditorInfo.TYPE_NULL
? inputType : EditorInfo.TYPE_CLASS_TEXT;
} else if (inputType != EditorInfo.TYPE_NULL) {
setInputType(inputType, true);
// If set, the input type overrides what was set using the deprecated singleLine flag.
singleLine = !isMultilineInputType(inputType);
} else if (phone) {
createEditorIfNeeded();
mEditor.mKeyListener = DialerKeyListener.getInstance();
mEditor.mInputType = inputType = EditorInfo.TYPE_CLASS_PHONE;
} else if (numeric != 0) {
createEditorIfNeeded();
mEditor.mKeyListener = DigitsKeyListener.getInstance((numeric & SIGNED) != 0,
(numeric & DECIMAL) != 0);
inputType = EditorInfo.TYPE_CLASS_NUMBER;
if ((numeric & SIGNED) != 0) {
inputType |= EditorInfo.TYPE_NUMBER_FLAG_SIGNED;
}
if ((numeric & DECIMAL) != 0) {
inputType |= EditorInfo.TYPE_NUMBER_FLAG_DECIMAL;
}
mEditor.mInputType = inputType;
} else if (autotext || autocap != -1) {
TextKeyListener.Capitalize cap;
inputType = EditorInfo.TYPE_CLASS_TEXT;
switch (autocap) {
case 1:
cap = TextKeyListener.Capitalize.SENTENCES;
inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES;
break;
case 2:
cap = TextKeyListener.Capitalize.WORDS;
inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS;
break;
case 3:
cap = TextKeyListener.Capitalize.CHARACTERS;
inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS;
break;
default:
cap = TextKeyListener.Capitalize.NONE;
break;
}
createEditorIfNeeded();
mEditor.mKeyListener = TextKeyListener.getInstance(autotext, cap);
mEditor.mInputType = inputType;
} else if (isTextSelectable()) {
// Prevent text changes from keyboard.
if (mEditor != null) {
mEditor.mKeyListener = null;
mEditor.mInputType = EditorInfo.TYPE_NULL;
}
bufferType = BufferType.SPANNABLE;
// So that selection can be changed using arrow keys and touch is handled.
setMovementMethod(ArrowKeyMovementMethod.getInstance());
} else if (editable) {
createEditorIfNeeded();
mEditor.mKeyListener = TextKeyListener.getInstance();
mEditor.mInputType = EditorInfo.TYPE_CLASS_TEXT;
} else {
if (mEditor != null) mEditor.mKeyListener = null;
switch (buffertype) {
case 0:
bufferType = BufferType.NORMAL;
break;
case 1:
bufferType = BufferType.SPANNABLE;
break;
case 2:
bufferType = BufferType.EDITABLE;
break;
}
}
if (mEditor != null) mEditor.adjustInputType(password, passwordInputType,
webPasswordInputType, numberPasswordInputType);
if (selectallonfocus) {
createEditorIfNeeded();
mEditor.mSelectAllOnFocus = true;
if (bufferType == BufferType.NORMAL)
bufferType = BufferType.SPANNABLE;
}
// Set up the tint (if needed) before setting the drawables so that it
// gets applied correctly.
if (drawableTint != null || drawableTintMode != null) {
if (mDrawables == null) {
mDrawables = new Drawables(context);
}
if (drawableTint != null) {
mDrawables.mTintList = drawableTint;
mDrawables.mHasTint = true;
}
if (drawableTintMode != null) {
mDrawables.mTintMode = drawableTintMode;
mDrawables.mHasTintMode = true;
}
}
// This call will save the initial left/right drawables
setCompoundDrawablesWithIntrinsicBounds(
drawableLeft, drawableTop, drawableRight, drawableBottom);
setRelativeDrawablesIfNeeded(drawableStart, drawableEnd);
setCompoundDrawablePadding(drawablePadding);
// Same as setSingleLine(), but make sure the transformation method and the maximum number
// of lines of height are unchanged for multi-line TextViews.
setInputTypeSingleLine(singleLine);
applySingleLine(singleLine, singleLine, singleLine);
if (singleLine && getKeyListener() == null && ellipsize < 0) {
ellipsize = 3; // END
}
switch (ellipsize) {
case 1:
setEllipsize(TextUtils.TruncateAt.START);
break;
case 2:
setEllipsize(TextUtils.TruncateAt.MIDDLE);
break;
case 3:
setEllipsize(TextUtils.TruncateAt.END);
break;
case 4:
if (ViewConfiguration.get(context).isFadingMarqueeEnabled()) {
setHorizontalFadingEdgeEnabled(true);
mMarqueeFadeMode = MARQUEE_FADE_NORMAL;
} else {
setHorizontalFadingEdgeEnabled(false);
mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS;
}
setEllipsize(TextUtils.TruncateAt.MARQUEE);
break;
}
setTextColor(textColor != null ? textColor : ColorStateList.valueOf(0xFF000000));
setHintTextColor(textColorHint);
setLinkTextColor(textColorLink);
if (textColorHighlight != 0) {
setHighlightColor(textColorHighlight);
}
setRawTextSize(textSize);
setElegantTextHeight(elegant);
setLetterSpacing(letterSpacing);
setFontFeatureSettings(fontFeatureSettings);
if (allCaps) {
setTransformationMethod(new AllCapsTransformationMethod(getContext()));
}
if (password || passwordInputType || webPasswordInputType || numberPasswordInputType) {
setTransformationMethod(PasswordTransformationMethod.getInstance());
typefaceIndex = MONOSPACE;
} else if (mEditor != null &&
(mEditor.mInputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION))
== (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)) {
typefaceIndex = MONOSPACE;
}
if (typefaceIndex != -1 && !fontFamilyExplicit) {
fontFamily = null;
}
setTypefaceFromAttrs(fontFamily, typefaceIndex, styleIndex);
if (shadowcolor != 0) {
setShadowLayer(r, dx, dy, shadowcolor);
}
if (maxlength >= 0) {
setFilters(new InputFilter[] { new InputFilter.LengthFilter(maxlength) });
} else {
setFilters(NO_FILTERS);
}
setText(text, bufferType);
if (hint != null) setHint(hint);
/*
* Views are not normally focusable unless specified to be.
* However, TextViews that have input or movement methods *are*
* focusable by default.
*/
a = context.obtainStyledAttributes(
attrs, com.android.internal.R.styleable.View, defStyleAttr, defStyleRes);
boolean focusable = mMovement != null || getKeyListener() != null;
boolean clickable = focusable || isClickable();
boolean longClickable = focusable || isLongClickable();
n = a.getIndexCount();
for (int i = 0; i < n; i++) {
int attr = a.getIndex(i);
switch (attr) {
case com.android.internal.R.styleable.View_focusable:
focusable = a.getBoolean(attr, focusable);
break;
case com.android.internal.R.styleable.View_clickable:
clickable = a.getBoolean(attr, clickable);
break;
case com.android.internal.R.styleable.View_longClickable:
longClickable = a.getBoolean(attr, longClickable);
break;
}
}
a.recycle();
setFocusable(focusable);
setClickable(clickable);
setLongClickable(longClickable);
if (mEditor != null) mEditor.prepareCursorControllers();
// If not explicitly specified this view is important for accessibility.
if (getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) {
setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES);
}
}
/**
* @hide
*/
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == PROCESS_TEXT_REQUEST_CODE) {
CharSequence result = data != null
? data.getCharSequenceExtra(Intent.EXTRA_PROCESS_TEXT)
: "";
if (isTextEditable()) {
replaceSelectionWithText(result);
} else {
Toast.makeText(getContext(), String.valueOf(result), Toast.LENGTH_LONG).show();
}
}
}
private void setTypefaceFromAttrs(String familyName, int typefaceIndex, int styleIndex) {
Typeface tf = null;
if (familyName != null) {
tf = Typeface.create(familyName, styleIndex);
if (tf != null) {
setTypeface(tf);
return;
}
}
switch (typefaceIndex) {
case SANS:
tf = Typeface.SANS_SERIF;
break;
case SERIF:
tf = Typeface.SERIF;
break;
case MONOSPACE:
tf = Typeface.MONOSPACE;
break;
}
setTypeface(tf, styleIndex);
}
private void setRelativeDrawablesIfNeeded(Drawable start, Drawable end) {
boolean hasRelativeDrawables = (start != null) || (end != null);
if (hasRelativeDrawables) {
Drawables dr = mDrawables;
if (dr == null) {
mDrawables = dr = new Drawables(getContext());
}
mDrawables.mOverride = true;
final Rect compoundRect = dr.mCompoundRect;
int[] state = getDrawableState();
if (start != null) {
start.setBounds(0, 0, start.getIntrinsicWidth(), start.getIntrinsicHeight());
start.setState(state);
start.copyBounds(compoundRect);
start.setCallback(this);
dr.mDrawableStart = start;
dr.mDrawableSizeStart = compoundRect.width();
dr.mDrawableHeightStart = compoundRect.height();
} else {
dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0;
}
if (end != null) {
end.setBounds(0, 0, end.getIntrinsicWidth(), end.getIntrinsicHeight());
end.setState(state);
end.copyBounds(compoundRect);
end.setCallback(this);
dr.mDrawableEnd = end;
dr.mDrawableSizeEnd = compoundRect.width();
dr.mDrawableHeightEnd = compoundRect.height();
} else {
dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0;
}
resetResolvedDrawables();
resolveDrawables();
applyCompoundDrawableTint();
}
}
@Override
public void setEnabled(boolean enabled) {
if (enabled == isEnabled()) {
return;
}
if (!enabled) {
// Hide the soft input if the currently active TextView is disabled
InputMethodManager imm = InputMethodManager.peekInstance();
if (imm != null && imm.isActive(this)) {
imm.hideSoftInputFromWindow(getWindowToken(), 0);
}
}
super.setEnabled(enabled);
if (enabled) {
// Make sure IME is updated with current editor info.
InputMethodManager imm = InputMethodManager.peekInstance();
if (imm != null) imm.restartInput(this);
}
// Will change text color
if (mEditor != null) {
mEditor.invalidateTextDisplayList();
mEditor.prepareCursorControllers();
// start or stop the cursor blinking as appropriate
mEditor.makeBlink();
}
}
/**
* Sets the typeface and style in which the text should be displayed,
* and turns on the fake bold and italic bits in the Paint if the
* Typeface that you provided does not have all the bits in the
* style that you specified.
*
* @attr ref android.R.styleable#TextView_typeface
* @attr ref android.R.styleable#TextView_textStyle
*/
public void setTypeface(Typeface tf, int style) {
if (style > 0) {
if (tf == null) {
tf = Typeface.defaultFromStyle(style);
} else {
tf = Typeface.create(tf, style);
}
setTypeface(tf);
// now compute what (if any) algorithmic styling is needed
int typefaceStyle = tf != null ? tf.getStyle() : 0;
int need = style & ~typefaceStyle;
mTextPaint.setFakeBoldText((need & Typeface.BOLD) != 0);
mTextPaint.setTextSkewX((need & Typeface.ITALIC) != 0 ? -0.25f : 0);
} else {
mTextPaint.setFakeBoldText(false);
mTextPaint.setTextSkewX(0);
setTypeface(tf);
}
}
/**
* Subclasses override this to specify that they have a KeyListener
* by default even if not specifically called for in the XML options.
*/
protected boolean getDefaultEditable() {
return false;
}
/**
* Subclasses override this to specify a default movement method.
*/
protected MovementMethod getDefaultMovementMethod() {
return null;
}
/**
* Return the text the TextView is displaying. If setText() was called with
* an argument of BufferType.SPANNABLE or BufferType.EDITABLE, you can cast
* the return value from this method to Spannable or Editable, respectively.
*
* Note: The content of the return value should not be modified. If you want
* a modifiable one, you should make your own copy first.
*
* @attr ref android.R.styleable#TextView_text
*/
@ViewDebug.CapturedViewProperty
public CharSequence getText() {
return mText;
}
/**
* Returns the length, in characters, of the text managed by this TextView
*/
public int length() {
return mText.length();
}
/**
* Return the text the TextView is displaying as an Editable object. If
* the text is not editable, null is returned.
*
* @see #getText
*/
public Editable getEditableText() {
return (mText instanceof Editable) ? (Editable)mText : null;
}
/**
* @return the height of one standard line in pixels. Note that markup
* within the text can cause individual lines to be taller or shorter
* than this height, and the layout may contain additional first-
* or last-line padding.
*/
public int getLineHeight() {
return FastMath.round(mTextPaint.getFontMetricsInt(null) * mSpacingMult + mSpacingAdd);
}
/**
* @return the Layout that is currently being used to display the text.
* This can be null if the text or width has recently changes.
*/
public final Layout getLayout() {
return mLayout;
}
/**
* @return the Layout that is currently being used to display the hint text.
* This can be null.
*/
final Layout getHintLayout() {
return mHintLayout;
}
/**
* Retrieve the {@link android.content.UndoManager} that is currently associated
* with this TextView. By default there is no associated UndoManager, so null
* is returned. One can be associated with the TextView through
* {@link #setUndoManager(android.content.UndoManager, String)}
*
* @hide
*/
public final UndoManager getUndoManager() {
// TODO: Consider supporting a global undo manager.
throw new UnsupportedOperationException("not implemented");
}
/**
* Associate an {@link android.content.UndoManager} with this TextView. Once
* done, all edit operations on the TextView will result in appropriate
* {@link android.content.UndoOperation} objects pushed on the given UndoManager's
* stack.
*
* @param undoManager The {@link android.content.UndoManager} to associate with
* this TextView, or null to clear any existing association.
* @param tag String tag identifying this particular TextView owner in the
* UndoManager. This is used to keep the correct association with the
* {@link android.content.UndoOwner} of any operations inside of the UndoManager.
*
* @hide
*/
public final void setUndoManager(UndoManager undoManager, String tag) {
// TODO: Consider supporting a global undo manager. An implementation will need to:
// * createEditorIfNeeded()
// * Promote to BufferType.EDITABLE if needed.
// * Update the UndoManager and UndoOwner.
// Likewise it will need to be able to restore the default UndoManager.
throw new UnsupportedOperationException("not implemented");
}
/**
* @return the current key listener for this TextView.
* This will frequently be null for non-EditText TextViews.
*
* @attr ref android.R.styleable#TextView_numeric
* @attr ref android.R.styleable#TextView_digits
* @attr ref android.R.styleable#TextView_phoneNumber
* @attr ref android.R.styleable#TextView_inputMethod
* @attr ref android.R.styleable#TextView_capitalize
* @attr ref android.R.styleable#TextView_autoText
*/
public final KeyListener getKeyListener() {
return mEditor == null ? null : mEditor.mKeyListener;
}
/**
* Sets the key listener to be used with this TextView. This can be null
* to disallow user input. Note that this method has significant and
* subtle interactions with soft keyboards and other input method:
* see {@link KeyListener#getInputType() KeyListener.getContentType()}
* for important details. Calling this method will replace the current
* content type of the text view with the content type returned by the
* key listener.
* <p>
* Be warned that if you want a TextView with a key listener or movement
* method not to be focusable, or if you want a TextView without a
* key listener or movement method to be focusable, you must call
* {@link #setFocusable} again after calling this to get the focusability
* back the way you want it.
*
* @attr ref android.R.styleable#TextView_numeric
* @attr ref android.R.styleable#TextView_digits
* @attr ref android.R.styleable#TextView_phoneNumber
* @attr ref android.R.styleable#TextView_inputMethod
* @attr ref android.R.styleable#TextView_capitalize
* @attr ref android.R.styleable#TextView_autoText
*/
public void setKeyListener(KeyListener input) {
setKeyListenerOnly(input);
fixFocusableAndClickableSettings();
if (input != null) {
createEditorIfNeeded();
try {
mEditor.mInputType = mEditor.mKeyListener.getInputType();
} catch (IncompatibleClassChangeError e) {
mEditor.mInputType = EditorInfo.TYPE_CLASS_TEXT;
}
// Change inputType, without affecting transformation.
// No need to applySingleLine since mSingleLine is unchanged.
setInputTypeSingleLine(mSingleLine);
} else {
if (mEditor != null) mEditor.mInputType = EditorInfo.TYPE_NULL;
}
InputMethodManager imm = InputMethodManager.peekInstance();
if (imm != null) imm.restartInput(this);
}
private void setKeyListenerOnly(KeyListener input) {
if (mEditor == null && input == null) return; // null is the default value
createEditorIfNeeded();
if (mEditor.mKeyListener != input) {
mEditor.mKeyListener = input;
if (input != null && !(mText instanceof Editable)) {
setText(mText);
}
setFilters((Editable) mText, mFilters);
}
}
/**
* @return the movement method being used for this TextView.
* This will frequently be null for non-EditText TextViews.
*/
public final MovementMethod getMovementMethod() {
return mMovement;
}
/**
* Sets the movement method (arrow key handler) to be used for
* this TextView. This can be null to disallow using the arrow keys
* to move the cursor or scroll the view.
* <p>
* Be warned that if you want a TextView with a key listener or movement
* method not to be focusable, or if you want a TextView without a
* key listener or movement method to be focusable, you must call
* {@link #setFocusable} again after calling this to get the focusability
* back the way you want it.
*/
public final void setMovementMethod(MovementMethod movement) {
if (mMovement != movement) {
mMovement = movement;
if (movement != null && !(mText instanceof Spannable)) {
setText(mText);
}
fixFocusableAndClickableSettings();
// SelectionModifierCursorController depends on textCanBeSelected, which depends on
// mMovement
if (mEditor != null) mEditor.prepareCursorControllers();
}
}
private void fixFocusableAndClickableSettings() {
if (mMovement != null || (mEditor != null && mEditor.mKeyListener != null)) {
setFocusable(true);
setClickable(true);
setLongClickable(true);
} else {
setFocusable(false);
setClickable(false);
setLongClickable(false);
}
}
/**
* @return the current transformation method for this TextView.
* This will frequently be null except for single-line and password
* fields.
*
* @attr ref android.R.styleable#TextView_password
* @attr ref android.R.styleable#TextView_singleLine
*/
public final TransformationMethod getTransformationMethod() {
return mTransformation;
}
/**
* Sets the transformation that is applied to the text that this
* TextView is displaying.
*
* @attr ref android.R.styleable#TextView_password
* @attr ref android.R.styleable#TextView_singleLine
*/
public final void setTransformationMethod(TransformationMethod method) {
if (method == mTransformation) {
// Avoid the setText() below if the transformation is
// the same.
return;
}
if (mTransformation != null) {
if (mText instanceof Spannable) {
((Spannable) mText).removeSpan(mTransformation);
}
}
mTransformation = method;
if (method instanceof TransformationMethod2) {
TransformationMethod2 method2 = (TransformationMethod2) method;
mAllowTransformationLengthChange = !isTextSelectable() && !(mText instanceof Editable);
method2.setLengthChangesAllowed(mAllowTransformationLengthChange);
} else {
mAllowTransformationLengthChange = false;
}
setText(mText);
if (hasPasswordTransformationMethod()) {
notifyViewAccessibilityStateChangedIfNeeded(
AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED);
}
}
/**
* Returns the top padding of the view, plus space for the top
* Drawable if any.
*/
public int getCompoundPaddingTop() {
final Drawables dr = mDrawables;
if (dr == null || dr.mShowing[Drawables.TOP] == null) {
return mPaddingTop;
} else {
return mPaddingTop + dr.mDrawablePadding + dr.mDrawableSizeTop;
}
}
/**
* Returns the bottom padding of the view, plus space for the bottom
* Drawable if any.
*/
public int getCompoundPaddingBottom() {
final Drawables dr = mDrawables;
if (dr == null || dr.mShowing[Drawables.BOTTOM] == null) {
return mPaddingBottom;
} else {
return mPaddingBottom + dr.mDrawablePadding + dr.mDrawableSizeBottom;
}
}
/**
* Returns the left padding of the view, plus space for the left
* Drawable if any.
*/
public int getCompoundPaddingLeft() {
final Drawables dr = mDrawables;
if (dr == null || dr.mShowing[Drawables.LEFT] == null) {
return mPaddingLeft;
} else {
return mPaddingLeft + dr.mDrawablePadding + dr.mDrawableSizeLeft;
}
}
/**
* Returns the right padding of the view, plus space for the right
* Drawable if any.
*/
public int getCompoundPaddingRight() {
final Drawables dr = mDrawables;
if (dr == null || dr.mShowing[Drawables.RIGHT] == null) {
return mPaddingRight;
} else {
return mPaddingRight + dr.mDrawablePadding + dr.mDrawableSizeRight;
}
}
/**
* Returns the start padding of the view, plus space for the start
* Drawable if any.
*/
public int getCompoundPaddingStart() {
resolveDrawables();
switch(getLayoutDirection()) {
default:
case LAYOUT_DIRECTION_LTR:
return getCompoundPaddingLeft();
case LAYOUT_DIRECTION_RTL:
return getCompoundPaddingRight();
}
}
/**
* Returns the end padding of the view, plus space for the end
* Drawable if any.
*/
public int getCompoundPaddingEnd() {
resolveDrawables();
switch(getLayoutDirection()) {
default:
case LAYOUT_DIRECTION_LTR:
return getCompoundPaddingRight();
case LAYOUT_DIRECTION_RTL:
return getCompoundPaddingLeft();
}
}
/**
* Returns the extended top padding of the view, including both the
* top Drawable if any and any extra space to keep more than maxLines
* of text from showing. It is only valid to call this after measuring.
*/
public int getExtendedPaddingTop() {
if (mMaxMode != LINES) {
return getCompoundPaddingTop();
}
if (mLayout == null) {
assumeLayout();
}
if (mLayout.getLineCount() <= mMaximum) {
return getCompoundPaddingTop();
}
int top = getCompoundPaddingTop();
int bottom = getCompoundPaddingBottom();
int viewht = getHeight() - top - bottom;
int layoutht = mLayout.getLineTop(mMaximum);
if (layoutht >= viewht) {
return top;
}
final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK;
if (gravity == Gravity.TOP) {
return top;
} else if (gravity == Gravity.BOTTOM) {
return top + viewht - layoutht;
} else { // (gravity == Gravity.CENTER_VERTICAL)
return top + (viewht - layoutht) / 2;
}
}
/**
* Returns the extended bottom padding of the view, including both the
* bottom Drawable if any and any extra space to keep more than maxLines
* of text from showing. It is only valid to call this after measuring.
*/
public int getExtendedPaddingBottom() {
if (mMaxMode != LINES) {
return getCompoundPaddingBottom();
}
if (mLayout == null) {
assumeLayout();
}
if (mLayout.getLineCount() <= mMaximum) {
return getCompoundPaddingBottom();
}
int top = getCompoundPaddingTop();
int bottom = getCompoundPaddingBottom();
int viewht = getHeight() - top - bottom;
int layoutht = mLayout.getLineTop(mMaximum);
if (layoutht >= viewht) {
return bottom;
}
final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK;
if (gravity == Gravity.TOP) {
return bottom + viewht - layoutht;
} else if (gravity == Gravity.BOTTOM) {
return bottom;
} else { // (gravity == Gravity.CENTER_VERTICAL)
return bottom + (viewht - layoutht) / 2;
}
}
/**
* Returns the total left padding of the view, including the left
* Drawable if any.
*/
public int getTotalPaddingLeft() {
return getCompoundPaddingLeft();
}
/**
* Returns the total right padding of the view, including the right
* Drawable if any.
*/
public int getTotalPaddingRight() {
return getCompoundPaddingRight();
}
/**
* Returns the total start padding of the view, including the start
* Drawable if any.
*/
public int getTotalPaddingStart() {
return getCompoundPaddingStart();
}
/**
* Returns the total end padding of the view, including the end
* Drawable if any.
*/
public int getTotalPaddingEnd() {
return getCompoundPaddingEnd();
}
/**
* Returns the total top padding of the view, including the top
* Drawable if any, the extra space to keep more than maxLines
* from showing, and the vertical offset for gravity, if any.
*/
public int getTotalPaddingTop() {
return getExtendedPaddingTop() + getVerticalOffset(true);
}
/**
* Returns the total bottom padding of the view, including the bottom
* Drawable if any, the extra space to keep more than maxLines
* from showing, and the vertical offset for gravity, if any.
*/
public int getTotalPaddingBottom() {
return getExtendedPaddingBottom() + getBottomVerticalOffset(true);
}
/**
* Sets the Drawables (if any) to appear to the left of, above, to the
* right of, and below the text. Use {@code null} if you do not want a
* Drawable there. The Drawables must already have had
* {@link Drawable#setBounds} called.
* <p>
* Calling this method will overwrite any Drawables previously set using
* {@link #setCompoundDrawablesRelative} or related methods.
*
* @attr ref android.R.styleable#TextView_drawableLeft
* @attr ref android.R.styleable#TextView_drawableTop
* @attr ref android.R.styleable#TextView_drawableRight
* @attr ref android.R.styleable#TextView_drawableBottom
*/
public void setCompoundDrawables(@Nullable Drawable left, @Nullable Drawable top,
@Nullable Drawable right, @Nullable Drawable bottom) {
Drawables dr = mDrawables;
// We're switching to absolute, discard relative.
if (dr != null) {
if (dr.mDrawableStart != null) dr.mDrawableStart.setCallback(null);
dr.mDrawableStart = null;
if (dr.mDrawableEnd != null) dr.mDrawableEnd.setCallback(null);
dr.mDrawableEnd = null;
dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0;
dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0;
}
final boolean drawables = left != null || top != null || right != null || bottom != null;
if (!drawables) {
// Clearing drawables... can we free the data structure?
if (dr != null) {
if (dr.mDrawablePadding == 0) {
mDrawables = null;
} else {
// We need to retain the last set padding, so just clear
// out all of the fields in the existing structure.
for (int i = dr.mShowing.length - 1; i >= 0; i--) {
if (dr.mShowing[i] != null) {
dr.mShowing[i].setCallback(null);
}
dr.mShowing[i] = null;
}
dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0;
dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0;
dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0;
dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0;
}
}
} else {
if (dr == null) {
mDrawables = dr = new Drawables(getContext());
}
mDrawables.mOverride = false;
if (dr.mShowing[Drawables.LEFT] != left && dr.mShowing[Drawables.LEFT] != null) {
dr.mShowing[Drawables.LEFT].setCallback(null);
}
dr.mShowing[Drawables.LEFT] = left;
if (dr.mShowing[Drawables.TOP] != top && dr.mShowing[Drawables.TOP] != null) {
dr.mShowing[Drawables.TOP].setCallback(null);
}
dr.mShowing[Drawables.TOP] = top;
if (dr.mShowing[Drawables.RIGHT] != right && dr.mShowing[Drawables.RIGHT] != null) {
dr.mShowing[Drawables.RIGHT].setCallback(null);
}
dr.mShowing[Drawables.RIGHT] = right;
if (dr.mShowing[Drawables.BOTTOM] != bottom && dr.mShowing[Drawables.BOTTOM] != null) {
dr.mShowing[Drawables.BOTTOM].setCallback(null);
}
dr.mShowing[Drawables.BOTTOM] = bottom;
final Rect compoundRect = dr.mCompoundRect;
int[] state;
state = getDrawableState();
if (left != null) {
left.setState(state);
left.copyBounds(compoundRect);
left.setCallback(this);
dr.mDrawableSizeLeft = compoundRect.width();
dr.mDrawableHeightLeft = compoundRect.height();
} else {
dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0;
}
if (right != null) {
right.setState(state);
right.copyBounds(compoundRect);
right.setCallback(this);
dr.mDrawableSizeRight = compoundRect.width();
dr.mDrawableHeightRight = compoundRect.height();
} else {
dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0;
}
if (top != null) {
top.setState(state);
top.copyBounds(compoundRect);
top.setCallback(this);
dr.mDrawableSizeTop = compoundRect.height();
dr.mDrawableWidthTop = compoundRect.width();
} else {
dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0;
}
if (bottom != null) {
bottom.setState(state);
bottom.copyBounds(compoundRect);
bottom.setCallback(this);
dr.mDrawableSizeBottom = compoundRect.height();
dr.mDrawableWidthBottom = compoundRect.width();
} else {
dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0;
}
}
// Save initial left/right drawables
if (dr != null) {
dr.mDrawableLeftInitial = left;
dr.mDrawableRightInitial = right;
}
resetResolvedDrawables();
resolveDrawables();
applyCompoundDrawableTint();
invalidate();
requestLayout();
}
/**
* Sets the Drawables (if any) to appear to the left of, above, to the
* right of, and below the text. Use 0 if you do not want a Drawable there.
* The Drawables' bounds will be set to their intrinsic bounds.
* <p>
* Calling this method will overwrite any Drawables previously set using
* {@link #setCompoundDrawablesRelative} or related methods.
*
* @param left Resource identifier of the left Drawable.
* @param top Resource identifier of the top Drawable.
* @param right Resource identifier of the right Drawable.
* @param bottom Resource identifier of the bottom Drawable.
*
* @attr ref android.R.styleable#TextView_drawableLeft
* @attr ref android.R.styleable#TextView_drawableTop
* @attr ref android.R.styleable#TextView_drawableRight
* @attr ref android.R.styleable#TextView_drawableBottom
*/
@android.view.RemotableViewMethod
public void setCompoundDrawablesWithIntrinsicBounds(@DrawableRes int left,
@DrawableRes int top, @DrawableRes int right, @DrawableRes int bottom) {
final Context context = getContext();
setCompoundDrawablesWithIntrinsicBounds(left != 0 ? context.getDrawable(left) : null,
top != 0 ? context.getDrawable(top) : null,
right != 0 ? context.getDrawable(right) : null,
bottom != 0 ? context.getDrawable(bottom) : null);
}
/**
* Sets the Drawables (if any) to appear to the left of, above, to the
* right of, and below the text. Use {@code null} if you do not want a
* Drawable there. The Drawables' bounds will be set to their intrinsic
* bounds.
* <p>
* Calling this method will overwrite any Drawables previously set using
* {@link #setCompoundDrawablesRelative} or related methods.
*
* @attr ref android.R.styleable#TextView_drawableLeft
* @attr ref android.R.styleable#TextView_drawableTop
* @attr ref android.R.styleable#TextView_drawableRight
* @attr ref android.R.styleable#TextView_drawableBottom
*/
public void setCompoundDrawablesWithIntrinsicBounds(@Nullable Drawable left,
@Nullable Drawable top, @Nullable Drawable right, @Nullable Drawable bottom) {
if (left != null) {
left.setBounds(0, 0, left.getIntrinsicWidth(), left.getIntrinsicHeight());
}
if (right != null) {
right.setBounds(0, 0, right.getIntrinsicWidth(), right.getIntrinsicHeight());
}
if (top != null) {
top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight());
}
if (bottom != null) {
bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight());
}
setCompoundDrawables(left, top, right, bottom);
}
/**
* Sets the Drawables (if any) to appear to the start of, above, to the end
* of, and below the text. Use {@code null} if you do not want a Drawable
* there. The Drawables must already have had {@link Drawable#setBounds}
* called.
* <p>
* Calling this method will overwrite any Drawables previously set using
* {@link #setCompoundDrawables} or related methods.
*
* @attr ref android.R.styleable#TextView_drawableStart
* @attr ref android.R.styleable#TextView_drawableTop
* @attr ref android.R.styleable#TextView_drawableEnd
* @attr ref android.R.styleable#TextView_drawableBottom
*/
public void setCompoundDrawablesRelative(@Nullable Drawable start, @Nullable Drawable top,
@Nullable Drawable end, @Nullable Drawable bottom) {
Drawables dr = mDrawables;
// We're switching to relative, discard absolute.
if (dr != null) {
if (dr.mShowing[Drawables.LEFT] != null) {
dr.mShowing[Drawables.LEFT].setCallback(null);
}
dr.mShowing[Drawables.LEFT] = dr.mDrawableLeftInitial = null;
if (dr.mShowing[Drawables.RIGHT] != null) {
dr.mShowing[Drawables.RIGHT].setCallback(null);
}
dr.mShowing[Drawables.RIGHT] = dr.mDrawableRightInitial = null;
dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0;
dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0;
}
final boolean drawables = start != null || top != null
|| end != null || bottom != null;
if (!drawables) {
// Clearing drawables... can we free the data structure?
if (dr != null) {
if (dr.mDrawablePadding == 0) {
mDrawables = null;
} else {
// We need to retain the last set padding, so just clear
// out all of the fields in the existing structure.
if (dr.mDrawableStart != null) dr.mDrawableStart.setCallback(null);
dr.mDrawableStart = null;
if (dr.mShowing[Drawables.TOP] != null) {
dr.mShowing[Drawables.TOP].setCallback(null);
}
dr.mShowing[Drawables.TOP] = null;
if (dr.mDrawableEnd != null) {
dr.mDrawableEnd.setCallback(null);
}
dr.mDrawableEnd = null;
if (dr.mShowing[Drawables.BOTTOM] != null) {
dr.mShowing[Drawables.BOTTOM].setCallback(null);
}
dr.mShowing[Drawables.BOTTOM] = null;
dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0;
dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0;
dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0;
dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0;
}
}
} else {
if (dr == null) {
mDrawables = dr = new Drawables(getContext());
}
mDrawables.mOverride = true;
if (dr.mDrawableStart != start && dr.mDrawableStart != null) {
dr.mDrawableStart.setCallback(null);
}
dr.mDrawableStart = start;
if (dr.mShowing[Drawables.TOP] != top && dr.mShowing[Drawables.TOP] != null) {
dr.mShowing[Drawables.TOP].setCallback(null);
}
dr.mShowing[Drawables.TOP] = top;
if (dr.mDrawableEnd != end && dr.mDrawableEnd != null) {
dr.mDrawableEnd.setCallback(null);
}
dr.mDrawableEnd = end;
if (dr.mShowing[Drawables.BOTTOM] != bottom && dr.mShowing[Drawables.BOTTOM] != null) {
dr.mShowing[Drawables.BOTTOM].setCallback(null);
}
dr.mShowing[Drawables.BOTTOM] = bottom;
final Rect compoundRect = dr.mCompoundRect;
int[] state;
state = getDrawableState();
if (start != null) {
start.setState(state);
start.copyBounds(compoundRect);
start.setCallback(this);
dr.mDrawableSizeStart = compoundRect.width();
dr.mDrawableHeightStart = compoundRect.height();
} else {
dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0;
}
if (end != null) {
end.setState(state);
end.copyBounds(compoundRect);
end.setCallback(this);
dr.mDrawableSizeEnd = compoundRect.width();
dr.mDrawableHeightEnd = compoundRect.height();
} else {
dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0;
}
if (top != null) {
top.setState(state);
top.copyBounds(compoundRect);
top.setCallback(this);
dr.mDrawableSizeTop = compoundRect.height();
dr.mDrawableWidthTop = compoundRect.width();
} else {
dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0;
}
if (bottom != null) {
bottom.setState(state);
bottom.copyBounds(compoundRect);
bottom.setCallback(this);
dr.mDrawableSizeBottom = compoundRect.height();
dr.mDrawableWidthBottom = compoundRect.width();
} else {
dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0;
}
}
resetResolvedDrawables();
resolveDrawables();
invalidate();
requestLayout();
}
/**
* Sets the Drawables (if any) to appear to the start of, above, to the end
* of, and below the text. Use 0 if you do not want a Drawable there. The
* Drawables' bounds will be set to their intrinsic bounds.
* <p>
* Calling this method will overwrite any Drawables previously set using
* {@link #setCompoundDrawables} or related methods.
*
* @param start Resource identifier of the start Drawable.
* @param top Resource identifier of the top Drawable.
* @param end Resource identifier of the end Drawable.
* @param bottom Resource identifier of the bottom Drawable.
*
* @attr ref android.R.styleable#TextView_drawableStart
* @attr ref android.R.styleable#TextView_drawableTop
* @attr ref android.R.styleable#TextView_drawableEnd
* @attr ref android.R.styleable#TextView_drawableBottom
*/
@android.view.RemotableViewMethod
public void setCompoundDrawablesRelativeWithIntrinsicBounds(@DrawableRes int start,
@DrawableRes int top, @DrawableRes int end, @DrawableRes int bottom) {
final Context context = getContext();
setCompoundDrawablesRelativeWithIntrinsicBounds(
start != 0 ? context.getDrawable(start) : null,
top != 0 ? context.getDrawable(top) : null,
end != 0 ? context.getDrawable(end) : null,
bottom != 0 ? context.getDrawable(bottom) : null);
}
/**
* Sets the Drawables (if any) to appear to the start of, above, to the end
* of, and below the text. Use {@code null} if you do not want a Drawable
* there. The Drawables' bounds will be set to their intrinsic bounds.
* <p>
* Calling this method will overwrite any Drawables previously set using
* {@link #setCompoundDrawables} or related methods.
*
* @attr ref android.R.styleable#TextView_drawableStart
* @attr ref android.R.styleable#TextView_drawableTop
* @attr ref android.R.styleable#TextView_drawableEnd
* @attr ref android.R.styleable#TextView_drawableBottom
*/
public void setCompoundDrawablesRelativeWithIntrinsicBounds(@Nullable Drawable start,
@Nullable Drawable top, @Nullable Drawable end, @Nullable Drawable bottom) {
if (start != null) {
start.setBounds(0, 0, start.getIntrinsicWidth(), start.getIntrinsicHeight());
}
if (end != null) {
end.setBounds(0, 0, end.getIntrinsicWidth(), end.getIntrinsicHeight());
}
if (top != null) {
top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight());
}
if (bottom != null) {
bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight());
}
setCompoundDrawablesRelative(start, top, end, bottom);
}
/**
* Returns drawables for the left, top, right, and bottom borders.
*
* @attr ref android.R.styleable#TextView_drawableLeft
* @attr ref android.R.styleable#TextView_drawableTop
* @attr ref android.R.styleable#TextView_drawableRight
* @attr ref android.R.styleable#TextView_drawableBottom
*/
@NonNull
public Drawable[] getCompoundDrawables() {
final Drawables dr = mDrawables;
if (dr != null) {
return dr.mShowing.clone();
} else {
return new Drawable[] { null, null, null, null };
}
}
/**
* Returns drawables for the start, top, end, and bottom borders.
*
* @attr ref android.R.styleable#TextView_drawableStart
* @attr ref android.R.styleable#TextView_drawableTop
* @attr ref android.R.styleable#TextView_drawableEnd
* @attr ref android.R.styleable#TextView_drawableBottom
*/
@NonNull
public Drawable[] getCompoundDrawablesRelative() {
final Drawables dr = mDrawables;
if (dr != null) {
return new Drawable[] {
dr.mDrawableStart, dr.mShowing[Drawables.TOP],
dr.mDrawableEnd, dr.mShowing[Drawables.BOTTOM]
};
} else {
return new Drawable[] { null, null, null, null };
}
}
/**
* Sets the size of the padding between the compound drawables and
* the text.
*
* @attr ref android.R.styleable#TextView_drawablePadding
*/
@android.view.RemotableViewMethod
public void setCompoundDrawablePadding(int pad) {
Drawables dr = mDrawables;
if (pad == 0) {
if (dr != null) {
dr.mDrawablePadding = pad;
}
} else {
if (dr == null) {
mDrawables = dr = new Drawables(getContext());
}
dr.mDrawablePadding = pad;
}
invalidate();
requestLayout();
}
/**
* Returns the padding between the compound drawables and the text.
*
* @attr ref android.R.styleable#TextView_drawablePadding
*/
public int getCompoundDrawablePadding() {
final Drawables dr = mDrawables;
return dr != null ? dr.mDrawablePadding : 0;
}
/**
* Applies a tint to the compound drawables. Does not modify the
* current tint mode, which is {@link PorterDuff.Mode#SRC_IN} by default.
* <p>
* Subsequent calls to
* {@link #setCompoundDrawables(Drawable, Drawable, Drawable, Drawable)}
* and related methods will automatically mutate the drawables and apply
* the specified tint and tint mode using
* {@link Drawable#setTintList(ColorStateList)}.
*
* @param tint the tint to apply, may be {@code null} to clear tint
*
* @attr ref android.R.styleable#TextView_drawableTint
* @see #getCompoundDrawableTintList()
* @see Drawable#setTintList(ColorStateList)
*/
public void setCompoundDrawableTintList(@Nullable ColorStateList tint) {
if (mDrawables == null) {
mDrawables = new Drawables(getContext());
}
mDrawables.mTintList = tint;
mDrawables.mHasTint = true;
applyCompoundDrawableTint();
}
/**
* @return the tint applied to the compound drawables
* @attr ref android.R.styleable#TextView_drawableTint
* @see #setCompoundDrawableTintList(ColorStateList)
*/
public ColorStateList getCompoundDrawableTintList() {
return mDrawables != null ? mDrawables.mTintList : null;
}
/**
* Specifies the blending mode used to apply the tint specified by
* {@link #setCompoundDrawableTintList(ColorStateList)} to the compound
* drawables. The default mode is {@link PorterDuff.Mode#SRC_IN}.
*
* @param tintMode the blending mode used to apply the tint, may be
* {@code null} to clear tint
* @attr ref android.R.styleable#TextView_drawableTintMode
* @see #setCompoundDrawableTintList(ColorStateList)
* @see Drawable#setTintMode(PorterDuff.Mode)
*/
public void setCompoundDrawableTintMode(@Nullable PorterDuff.Mode tintMode) {
if (mDrawables == null) {
mDrawables = new Drawables(getContext());
}
mDrawables.mTintMode = tintMode;
mDrawables.mHasTintMode = true;
applyCompoundDrawableTint();
}
/**
* Returns the blending mode used to apply the tint to the compound
* drawables, if specified.
*
* @return the blending mode used to apply the tint to the compound
* drawables
* @attr ref android.R.styleable#TextView_drawableTintMode
* @see #setCompoundDrawableTintMode(PorterDuff.Mode)
*/
public PorterDuff.Mode getCompoundDrawableTintMode() {
return mDrawables != null ? mDrawables.mTintMode : null;
}
private void applyCompoundDrawableTint() {
if (mDrawables == null) {
return;
}
if (mDrawables.mHasTint || mDrawables.mHasTintMode) {
final ColorStateList tintList = mDrawables.mTintList;
final PorterDuff.Mode tintMode = mDrawables.mTintMode;
final boolean hasTint = mDrawables.mHasTint;
final boolean hasTintMode = mDrawables.mHasTintMode;
final int[] state = getDrawableState();
for (Drawable dr : mDrawables.mShowing) {
if (dr == null) {
continue;
}
if (dr == mDrawables.mDrawableError) {
// From a developer's perspective, the error drawable isn't
// a compound drawable. Don't apply the generic compound
// drawable tint to it.
continue;
}
dr.mutate();
if (hasTint) {
dr.setTintList(tintList);
}
if (hasTintMode) {
dr.setTintMode(tintMode);
}
// The drawable (or one of its children) may not have been
// stateful before applying the tint, so let's try again.
if (dr.isStateful()) {
dr.setState(state);
}
}
}
}
@Override
public void setPadding(int left, int top, int right, int bottom) {
if (left != mPaddingLeft ||
right != mPaddingRight ||
top != mPaddingTop ||
bottom != mPaddingBottom) {
nullLayouts();
}
// the super call will requestLayout()
super.setPadding(left, top, right, bottom);
invalidate();
}
@Override
public void setPaddingRelative(int start, int top, int end, int bottom) {
if (start != getPaddingStart() ||
end != getPaddingEnd() ||
top != mPaddingTop ||
bottom != mPaddingBottom) {
nullLayouts();
}
// the super call will requestLayout()
super.setPaddingRelative(start, top, end, bottom);
invalidate();
}
/**
* Gets the autolink mask of the text. See {@link
* android.text.util.Linkify#ALL Linkify.ALL} and peers for
* possible values.
*
* @attr ref android.R.styleable#TextView_autoLink
*/
public final int getAutoLinkMask() {
return mAutoLinkMask;
}
/**
* Sets the text appearance from the specified style resource.
* <p>
* Use a framework-defined {@code TextAppearance} style like
* {@link android.R.style#TextAppearance_Material_Body1 @android:style/TextAppearance.Material.Body1}
* or see {@link android.R.styleable#TextAppearance TextAppearance} for the
* set of attributes that can be used in a custom style.
*
* @param resId the resource identifier of the style to apply
* @attr ref android.R.styleable#TextView_textAppearance
*/
@SuppressWarnings("deprecation")
public void setTextAppearance(@StyleRes int resId) {
setTextAppearance(mContext, resId);
}
/**
* Sets the text color, size, style, hint color, and highlight color
* from the specified TextAppearance resource.
*
* @deprecated Use {@link #setTextAppearance(int)} instead.
*/
@Deprecated
public void setTextAppearance(Context context, @StyleRes int resId) {
final TypedArray ta = context.obtainStyledAttributes(resId, R.styleable.TextAppearance);
final int textColorHighlight = ta.getColor(
R.styleable.TextAppearance_textColorHighlight, 0);
if (textColorHighlight != 0) {
setHighlightColor(textColorHighlight);
}
final ColorStateList textColor = ta.getColorStateList(R.styleable.TextAppearance_textColor);
if (textColor != null) {
setTextColor(textColor);
}
final int textSize = ta.getDimensionPixelSize(R.styleable.TextAppearance_textSize, 0);
if (textSize != 0) {
setRawTextSize(textSize);
}
final ColorStateList textColorHint = ta.getColorStateList(
R.styleable.TextAppearance_textColorHint);
if (textColorHint != null) {
setHintTextColor(textColorHint);
}
final ColorStateList textColorLink = ta.getColorStateList(
R.styleable.TextAppearance_textColorLink);
if (textColorLink != null) {
setLinkTextColor(textColorLink);
}
final String fontFamily = ta.getString(R.styleable.TextAppearance_fontFamily);
final int typefaceIndex = ta.getInt(R.styleable.TextAppearance_typeface, -1);
final int styleIndex = ta.getInt(R.styleable.TextAppearance_textStyle, -1);
setTypefaceFromAttrs(fontFamily, typefaceIndex, styleIndex);
final int shadowColor = ta.getInt(R.styleable.TextAppearance_shadowColor, 0);
if (shadowColor != 0) {
final float dx = ta.getFloat(R.styleable.TextAppearance_shadowDx, 0);
final float dy = ta.getFloat(R.styleable.TextAppearance_shadowDy, 0);
final float r = ta.getFloat(R.styleable.TextAppearance_shadowRadius, 0);
setShadowLayer(r, dx, dy, shadowColor);
}
if (ta.getBoolean(R.styleable.TextAppearance_textAllCaps, false)) {
setTransformationMethod(new AllCapsTransformationMethod(getContext()));
}
if (ta.hasValue(R.styleable.TextAppearance_elegantTextHeight)) {
setElegantTextHeight(ta.getBoolean(
R.styleable.TextAppearance_elegantTextHeight, false));
}
if (ta.hasValue(R.styleable.TextAppearance_letterSpacing)) {
setLetterSpacing(ta.getFloat(
R.styleable.TextAppearance_letterSpacing, 0));
}
if (ta.hasValue(R.styleable.TextAppearance_fontFeatureSettings)) {
setFontFeatureSettings(ta.getString(
R.styleable.TextAppearance_fontFeatureSettings));
}
ta.recycle();
}
/**
* Get the default {@link Locale} of the text in this TextView.
* @return the default {@link Locale} of the text in this TextView.
*/
public Locale getTextLocale() {
return mTextPaint.getTextLocale();
}
/**
* Set the default {@link Locale} of the text in this TextView to the given value. This value
* is used to choose appropriate typefaces for ambiguous characters. Typically used for CJK
* locales to disambiguate Hanzi/Kanji/Hanja characters.
*
* @param locale the {@link Locale} for drawing text, must not be null.
*
* @see Paint#setTextLocale
*/
public void setTextLocale(Locale locale) {
mLocaleChanged = true;
mTextPaint.setTextLocale(locale);
}
@Override
protected void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
if (!mLocaleChanged) {
mTextPaint.setTextLocale(Locale.getDefault());
}
}
/**
* @return the size (in pixels) of the default text size in this TextView.
*/
@ViewDebug.ExportedProperty(category = "text")
public float getTextSize() {
return mTextPaint.getTextSize();
}
/**
* @return the size (in scaled pixels) of thee default text size in this TextView.
* @hide
*/
@ViewDebug.ExportedProperty(category = "text")
public float getScaledTextSize() {
return mTextPaint.getTextSize() / mTextPaint.density;
}
/** @hide */
@ViewDebug.ExportedProperty(category = "text", mapping = {
@ViewDebug.IntToString(from = Typeface.NORMAL, to = "NORMAL"),
@ViewDebug.IntToString(from = Typeface.BOLD, to = "BOLD"),
@ViewDebug.IntToString(from = Typeface.ITALIC, to = "ITALIC"),
@ViewDebug.IntToString(from = Typeface.BOLD_ITALIC, to = "BOLD_ITALIC")
})
public int getTypefaceStyle() {
return mTextPaint.getTypeface().getStyle();
}
/**
* Set the default text size to the given value, interpreted as "scaled
* pixel" units. This size is adjusted based on the current density and
* user font size preference.
*
* @param size The scaled pixel size.
*
* @attr ref android.R.styleable#TextView_textSize
*/
@android.view.RemotableViewMethod
public void setTextSize(float size) {
setTextSize(TypedValue.COMPLEX_UNIT_SP, size);
}
/**
* Set the default text size to a given unit and value. See {@link
* TypedValue} for the possible dimension units.
*
* @param unit The desired dimension unit.
* @param size The desired size in the given units.
*
* @attr ref android.R.styleable#TextView_textSize
*/
public void setTextSize(int unit, float size) {
Context c = getContext();
Resources r;
if (c == null)
r = Resources.getSystem();
else
r = c.getResources();
setRawTextSize(TypedValue.applyDimension(
unit, size, r.getDisplayMetrics()));
}
private void setRawTextSize(float size) {
if (size != mTextPaint.getTextSize()) {
mTextPaint.setTextSize(size);
if (mLayout != null) {
nullLayouts();
requestLayout();
invalidate();
}
}
}
/**
* @return the extent by which text is currently being stretched
* horizontally. This will usually be 1.
*/
public float getTextScaleX() {
return mTextPaint.getTextScaleX();
}
/**
* Sets the extent by which text should be stretched horizontally.
*
* @attr ref android.R.styleable#TextView_textScaleX
*/
@android.view.RemotableViewMethod
public void setTextScaleX(float size) {
if (size != mTextPaint.getTextScaleX()) {
mUserSetTextScaleX = true;
mTextPaint.setTextScaleX(size);
if (mLayout != null) {
nullLayouts();
requestLayout();
invalidate();
}
}
}
/**
* Sets the typeface and style in which the text should be displayed.
* Note that not all Typeface families actually have bold and italic
* variants, so you may need to use
* {@link #setTypeface(Typeface, int)} to get the appearance
* that you actually want.
*
* @see #getTypeface()
*
* @attr ref android.R.styleable#TextView_fontFamily
* @attr ref android.R.styleable#TextView_typeface
* @attr ref android.R.styleable#TextView_textStyle
*/
public void setTypeface(Typeface tf) {
if (mTextPaint.getTypeface() != tf) {
mTextPaint.setTypeface(tf);
if (mLayout != null) {
nullLayouts();
requestLayout();
invalidate();
}
}
}
/**
* @return the current typeface and style in which the text is being
* displayed.
*
* @see #setTypeface(Typeface)
*
* @attr ref android.R.styleable#TextView_fontFamily
* @attr ref android.R.styleable#TextView_typeface
* @attr ref android.R.styleable#TextView_textStyle
*/
public Typeface getTypeface() {
return mTextPaint.getTypeface();
}
/**
* Set the TextView's elegant height metrics flag. This setting selects font
* variants that have not been compacted to fit Latin-based vertical
* metrics, and also increases top and bottom bounds to provide more space.
*
* @param elegant set the paint's elegant metrics flag.
*
* @attr ref android.R.styleable#TextView_elegantTextHeight
*/
public void setElegantTextHeight(boolean elegant) {
mTextPaint.setElegantTextHeight(elegant);
}
/**
* @return the extent by which text is currently being letter-spaced.
* This will normally be 0.
*
* @see #setLetterSpacing(float)
* @see Paint#setLetterSpacing
*/
public float getLetterSpacing() {
return mTextPaint.getLetterSpacing();
}
/**
* Sets text letter-spacing. The value is in 'EM' units. Typical values
* for slight expansion will be around 0.05. Negative values tighten text.
*
* @see #getLetterSpacing()
* @see Paint#getLetterSpacing
*
* @attr ref android.R.styleable#TextView_letterSpacing
*/
@android.view.RemotableViewMethod
public void setLetterSpacing(float letterSpacing) {
if (letterSpacing != mTextPaint.getLetterSpacing()) {
mTextPaint.setLetterSpacing(letterSpacing);
if (mLayout != null) {
nullLayouts();
requestLayout();
invalidate();
}
}
}
/**
* @return the currently set font feature settings. Default is null.
*
* @see #setFontFeatureSettings(String)
* @see Paint#setFontFeatureSettings
*/
@Nullable
public String getFontFeatureSettings() {
return mTextPaint.getFontFeatureSettings();
}
/**
* Sets the break strategy for breaking paragraphs into lines. The default value for
* TextView is {@link Layout#BREAK_STRATEGY_HIGH_QUALITY}, and the default value for
* EditText is {@link Layout#BREAK_STRATEGY_SIMPLE}, the latter to avoid the
* text "dancing" when being edited.
*
* @attr ref android.R.styleable#TextView_breakStrategy
* @see #getBreakStrategy()
*/
public void setBreakStrategy(@Layout.BreakStrategy int breakStrategy) {
mBreakStrategy = breakStrategy;
if (mLayout != null) {
nullLayouts();
requestLayout();
invalidate();
}
}
/**
* @return the currently set break strategy.
*
* @attr ref android.R.styleable#TextView_breakStrategy
* @see #setBreakStrategy(int)
*/
@Layout.BreakStrategy
public int getBreakStrategy() {
return mBreakStrategy;
}
/**
* Sets font feature settings. The format is the same as the CSS
* font-feature-settings attribute:
* http://dev.w3.org/csswg/css-fonts/#propdef-font-feature-settings
*
* @param fontFeatureSettings font feature settings represented as CSS compatible string
* @see #getFontFeatureSettings()
* @see Paint#getFontFeatureSettings
*
* @attr ref android.R.styleable#TextView_fontFeatureSettings
*/
@android.view.RemotableViewMethod
public void setFontFeatureSettings(@Nullable String fontFeatureSettings) {
if (fontFeatureSettings != mTextPaint.getFontFeatureSettings()) {
mTextPaint.setFontFeatureSettings(fontFeatureSettings);
if (mLayout != null) {
nullLayouts();
requestLayout();
invalidate();
}
}
}
/**
* Sets the text color for all the states (normal, selected,
* focused) to be this color.
*
* @see #setTextColor(ColorStateList)
* @see #getTextColors()
*
* @attr ref android.R.styleable#TextView_textColor
*/
@android.view.RemotableViewMethod
public void setTextColor(@ColorInt int color) {
mTextColor = ColorStateList.valueOf(color);
updateTextColors();
}
/**
* Sets the text color.
*
* @see #setTextColor(int)
* @see #getTextColors()
* @see #setHintTextColor(ColorStateList)
* @see #setLinkTextColor(ColorStateList)
*
* @attr ref android.R.styleable#TextView_textColor
*/
public void setTextColor(ColorStateList colors) {
if (colors == null) {
throw new NullPointerException();
}
mTextColor = colors;
updateTextColors();
}
/**
* Gets the text colors for the different states (normal, selected, focused) of the TextView.
*
* @see #setTextColor(ColorStateList)
* @see #setTextColor(int)
*
* @attr ref android.R.styleable#TextView_textColor
*/
public final ColorStateList getTextColors() {
return mTextColor;
}
/**
* <p>Return the current color selected for normal text.</p>
*
* @return Returns the current text color.
*/
@ColorInt
public final int getCurrentTextColor() {
return mCurTextColor;
}
/**
* Sets the color used to display the selection highlight.
*
* @attr ref android.R.styleable#TextView_textColorHighlight
*/
@android.view.RemotableViewMethod
public void setHighlightColor(@ColorInt int color) {
if (mHighlightColor != color) {
mHighlightColor = color;
invalidate();
}
}
/**
* @return the color used to display the selection highlight
*
* @see #setHighlightColor(int)
*
* @attr ref android.R.styleable#TextView_textColorHighlight
*/
@ColorInt
public int getHighlightColor() {
return mHighlightColor;
}
/**
* Sets whether the soft input method will be made visible when this
* TextView gets focused. The default is true.
*/
@android.view.RemotableViewMethod
public final void setShowSoftInputOnFocus(boolean show) {
createEditorIfNeeded();
mEditor.mShowSoftInputOnFocus = show;
}
/**
* Returns whether the soft input method will be made visible when this
* TextView gets focused. The default is true.
*/
public final boolean getShowSoftInputOnFocus() {
// When there is no Editor, return default true value
return mEditor == null || mEditor.mShowSoftInputOnFocus;
}
/**
* Gives the text a shadow of the specified blur radius and color, the specified
* distance from its drawn position.
* <p>
* The text shadow produced does not interact with the properties on view
* that are responsible for real time shadows,
* {@link View#getElevation() elevation} and
* {@link View#getTranslationZ() translationZ}.
*
* @see Paint#setShadowLayer(float, float, float, int)
*
* @attr ref android.R.styleable#TextView_shadowColor
* @attr ref android.R.styleable#TextView_shadowDx
* @attr ref android.R.styleable#TextView_shadowDy
* @attr ref android.R.styleable#TextView_shadowRadius
*/
public void setShadowLayer(float radius, float dx, float dy, int color) {
mTextPaint.setShadowLayer(radius, dx, dy, color);
mShadowRadius = radius;
mShadowDx = dx;
mShadowDy = dy;
mShadowColor = color;
// Will change text clip region
if (mEditor != null) mEditor.invalidateTextDisplayList();
invalidate();
}
/**
* Gets the radius of the shadow layer.
*
* @return the radius of the shadow layer. If 0, the shadow layer is not visible
*
* @see #setShadowLayer(float, float, float, int)
*
* @attr ref android.R.styleable#TextView_shadowRadius
*/
public float getShadowRadius() {
return mShadowRadius;
}
/**
* @return the horizontal offset of the shadow layer
*
* @see #setShadowLayer(float, float, float, int)
*
* @attr ref android.R.styleable#TextView_shadowDx
*/
public float getShadowDx() {
return mShadowDx;
}
/**
* @return the vertical offset of the shadow layer
*
* @see #setShadowLayer(float, float, float, int)
*
* @attr ref android.R.styleable#TextView_shadowDy
*/
public float getShadowDy() {
return mShadowDy;
}
/**
* @return the color of the shadow layer
*
* @see #setShadowLayer(float, float, float, int)
*
* @attr ref android.R.styleable#TextView_shadowColor
*/
@ColorInt
public int getShadowColor() {
return mShadowColor;
}
/**
* @return the base paint used for the text. Please use this only to
* consult the Paint's properties and not to change them.
*/
public TextPaint getPaint() {
return mTextPaint;
}
/**
* Sets the autolink mask of the text. See {@link
* android.text.util.Linkify#ALL Linkify.ALL} and peers for
* possible values.
*
* @attr ref android.R.styleable#TextView_autoLink
*/
@android.view.RemotableViewMethod
public final void setAutoLinkMask(int mask) {
mAutoLinkMask = mask;
}
/**
* Sets whether the movement method will automatically be set to
* {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been
* set to nonzero and links are detected in {@link #setText}.
* The default is true.
*
* @attr ref android.R.styleable#TextView_linksClickable
*/
@android.view.RemotableViewMethod
public final void setLinksClickable(boolean whether) {
mLinksClickable = whether;
}
/**
* Returns whether the movement method will automatically be set to
* {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been
* set to nonzero and links are detected in {@link #setText}.
* The default is true.
*
* @attr ref android.R.styleable#TextView_linksClickable
*/
public final boolean getLinksClickable() {
return mLinksClickable;
}
/**
* Returns the list of URLSpans attached to the text
* (by {@link Linkify} or otherwise) if any. You can call
* {@link URLSpan#getURL} on them to find where they link to
* or use {@link Spanned#getSpanStart} and {@link Spanned#getSpanEnd}
* to find the region of the text they are attached to.
*/
public URLSpan[] getUrls() {
if (mText instanceof Spanned) {
return ((Spanned) mText).getSpans(0, mText.length(), URLSpan.class);
} else {
return new URLSpan[0];
}
}
/**
* Sets the color of the hint text for all the states (disabled, focussed, selected...) of this
* TextView.
*
* @see #setHintTextColor(ColorStateList)
* @see #getHintTextColors()
* @see #setTextColor(int)
*
* @attr ref android.R.styleable#TextView_textColorHint
*/
@android.view.RemotableViewMethod
public final void setHintTextColor(@ColorInt int color) {
mHintTextColor = ColorStateList.valueOf(color);
updateTextColors();
}
/**
* Sets the color of the hint text.
*
* @see #getHintTextColors()
* @see #setHintTextColor(int)
* @see #setTextColor(ColorStateList)
* @see #setLinkTextColor(ColorStateList)
*
* @attr ref android.R.styleable#TextView_textColorHint
*/
public final void setHintTextColor(ColorStateList colors) {
mHintTextColor = colors;
updateTextColors();
}
/**
* @return the color of the hint text, for the different states of this TextView.
*
* @see #setHintTextColor(ColorStateList)
* @see #setHintTextColor(int)
* @see #setTextColor(ColorStateList)
* @see #setLinkTextColor(ColorStateList)
*
* @attr ref android.R.styleable#TextView_textColorHint
*/
public final ColorStateList getHintTextColors() {
return mHintTextColor;
}
/**
* <p>Return the current color selected to paint the hint text.</p>
*
* @return Returns the current hint text color.
*/
@ColorInt
public final int getCurrentHintTextColor() {
return mHintTextColor != null ? mCurHintTextColor : mCurTextColor;
}
/**
* Sets the color of links in the text.
*
* @see #setLinkTextColor(ColorStateList)
* @see #getLinkTextColors()
*
* @attr ref android.R.styleable#TextView_textColorLink
*/
@android.view.RemotableViewMethod
public final void setLinkTextColor(@ColorInt int color) {
mLinkTextColor = ColorStateList.valueOf(color);
updateTextColors();
}
/**
* Sets the color of links in the text.
*
* @see #setLinkTextColor(int)
* @see #getLinkTextColors()
* @see #setTextColor(ColorStateList)
* @see #setHintTextColor(ColorStateList)
*
* @attr ref android.R.styleable#TextView_textColorLink
*/
public final void setLinkTextColor(ColorStateList colors) {
mLinkTextColor = colors;
updateTextColors();
}
/**
* @return the list of colors used to paint the links in the text, for the different states of
* this TextView
*
* @see #setLinkTextColor(ColorStateList)
* @see #setLinkTextColor(int)
*
* @attr ref android.R.styleable#TextView_textColorLink
*/
public final ColorStateList getLinkTextColors() {
return mLinkTextColor;
}
/**
* Sets the horizontal alignment of the text and the
* vertical gravity that will be used when there is extra space
* in the TextView beyond what is required for the text itself.
*
* @see android.view.Gravity
* @attr ref android.R.styleable#TextView_gravity
*/
public void setGravity(int gravity) {
if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) == 0) {
gravity |= Gravity.START;
}
if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) {
gravity |= Gravity.TOP;
}
boolean newLayout = false;
if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) !=
(mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK)) {
newLayout = true;
}
if (gravity != mGravity) {
invalidate();
}
mGravity = gravity;
if (mLayout != null && newLayout) {
// XXX this is heavy-handed because no actual content changes.
int want = mLayout.getWidth();
int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth();
makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING,
mRight - mLeft - getCompoundPaddingLeft() -
getCompoundPaddingRight(), true);
}
}
/**
* Returns the horizontal and vertical alignment of this TextView.
*
* @see android.view.Gravity
* @attr ref android.R.styleable#TextView_gravity
*/
public int getGravity() {
return mGravity;
}
/**
* @return the flags on the Paint being used to display the text.
* @see Paint#getFlags
*/
public int getPaintFlags() {
return mTextPaint.getFlags();
}
/**
* Sets flags on the Paint being used to display the text and
* reflows the text if they are different from the old flags.
* @see Paint#setFlags
*/
@android.view.RemotableViewMethod
public void setPaintFlags(int flags) {
if (mTextPaint.getFlags() != flags) {
mTextPaint.setFlags(flags);
if (mLayout != null) {
nullLayouts();
requestLayout();
invalidate();
}
}
}
/**
* Sets whether the text should be allowed to be wider than the
* View is. If false, it will be wrapped to the width of the View.
*
* @attr ref android.R.styleable#TextView_scrollHorizontally
*/
public void setHorizontallyScrolling(boolean whether) {
if (mHorizontallyScrolling != whether) {
mHorizontallyScrolling = whether;
if (mLayout != null) {
nullLayouts();
requestLayout();
invalidate();
}
}
}
/**
* Returns whether the text is allowed to be wider than the View is.
* If false, the text will be wrapped to the width of the View.
*
* @attr ref android.R.styleable#TextView_scrollHorizontally
* @hide
*/
public boolean getHorizontallyScrolling() {
return mHorizontallyScrolling;
}
/**
* Makes the TextView at least this many lines tall.
*
* Setting this value overrides any other (minimum) height setting. A single line TextView will
* set this value to 1.
*
* @see #getMinLines()
*
* @attr ref android.R.styleable#TextView_minLines
*/
@android.view.RemotableViewMethod
public void setMinLines(int minlines) {
mMinimum = minlines;
mMinMode = LINES;
requestLayout();
invalidate();
}
/**
* @return the minimum number of lines displayed in this TextView, or -1 if the minimum
* height was set in pixels instead using {@link #setMinHeight(int) or #setHeight(int)}.
*
* @see #setMinLines(int)
*
* @attr ref android.R.styleable#TextView_minLines
*/
public int getMinLines() {
return mMinMode == LINES ? mMinimum : -1;
}
/**
* Makes the TextView at least this many pixels tall.
*
* Setting this value overrides any other (minimum) number of lines setting.
*
* @attr ref android.R.styleable#TextView_minHeight
*/
@android.view.RemotableViewMethod
public void setMinHeight(int minHeight) {
mMinimum = minHeight;
mMinMode = PIXELS;
requestLayout();
invalidate();
}
/**
* @return the minimum height of this TextView expressed in pixels, or -1 if the minimum
* height was set in number of lines instead using {@link #setMinLines(int) or #setLines(int)}.
*
* @see #setMinHeight(int)
*
* @attr ref android.R.styleable#TextView_minHeight
*/
public int getMinHeight() {
return mMinMode == PIXELS ? mMinimum : -1;
}
/**
* Makes the TextView at most this many lines tall.
*
* Setting this value overrides any other (maximum) height setting.
*
* @attr ref android.R.styleable#TextView_maxLines
*/
@android.view.RemotableViewMethod
public void setMaxLines(int maxlines) {
mMaximum = maxlines;
mMaxMode = LINES;
requestLayout();
invalidate();
}
/**
* @return the maximum number of lines displayed in this TextView, or -1 if the maximum
* height was set in pixels instead using {@link #setMaxHeight(int) or #setHeight(int)}.
*
* @see #setMaxLines(int)
*
* @attr ref android.R.styleable#TextView_maxLines
*/
public int getMaxLines() {
return mMaxMode == LINES ? mMaximum : -1;
}
/**
* Makes the TextView at most this many pixels tall. This option is mutually exclusive with the
* {@link #setMaxLines(int)} method.
*
* Setting this value overrides any other (maximum) number of lines setting.
*
* @attr ref android.R.styleable#TextView_maxHeight
*/
@android.view.RemotableViewMethod
public void setMaxHeight(int maxHeight) {
mMaximum = maxHeight;
mMaxMode = PIXELS;
requestLayout();
invalidate();
}
/**
* @return the maximum height of this TextView expressed in pixels, or -1 if the maximum
* height was set in number of lines instead using {@link #setMaxLines(int) or #setLines(int)}.
*
* @see #setMaxHeight(int)
*
* @attr ref android.R.styleable#TextView_maxHeight
*/
public int getMaxHeight() {
return mMaxMode == PIXELS ? mMaximum : -1;
}
/**
* Makes the TextView exactly this many lines tall.
*
* Note that setting this value overrides any other (minimum / maximum) number of lines or
* height setting. A single line TextView will set this value to 1.
*
* @attr ref android.R.styleable#TextView_lines
*/
@android.view.RemotableViewMethod
public void setLines(int lines) {
mMaximum = mMinimum = lines;
mMaxMode = mMinMode = LINES;
requestLayout();
invalidate();
}
/**
* Makes the TextView exactly this many pixels tall.
* You could do the same thing by specifying this number in the
* LayoutParams.
*
* Note that setting this value overrides any other (minimum / maximum) number of lines or
* height setting.
*
* @attr ref android.R.styleable#TextView_height
*/
@android.view.RemotableViewMethod
public void setHeight(int pixels) {
mMaximum = mMinimum = pixels;
mMaxMode = mMinMode = PIXELS;
requestLayout();
invalidate();
}
/**
* Makes the TextView at least this many ems wide
*
* @attr ref android.R.styleable#TextView_minEms
*/
@android.view.RemotableViewMethod
public void setMinEms(int minems) {
mMinWidth = minems;
mMinWidthMode = EMS;
requestLayout();
invalidate();
}
/**
* @return the minimum width of the TextView, expressed in ems or -1 if the minimum width
* was set in pixels instead (using {@link #setMinWidth(int)} or {@link #setWidth(int)}).
*
* @see #setMinEms(int)
* @see #setEms(int)
*
* @attr ref android.R.styleable#TextView_minEms
*/
public int getMinEms() {
return mMinWidthMode == EMS ? mMinWidth : -1;
}
/**
* Makes the TextView at least this many pixels wide
*
* @attr ref android.R.styleable#TextView_minWidth
*/
@android.view.RemotableViewMethod
public void setMinWidth(int minpixels) {
mMinWidth = minpixels;
mMinWidthMode = PIXELS;
requestLayout();
invalidate();
}
/**
* @return the minimum width of the TextView, in pixels or -1 if the minimum width
* was set in ems instead (using {@link #setMinEms(int)} or {@link #setEms(int)}).
*
* @see #setMinWidth(int)
* @see #setWidth(int)
*
* @attr ref android.R.styleable#TextView_minWidth
*/
public int getMinWidth() {
return mMinWidthMode == PIXELS ? mMinWidth : -1;
}
/**
* Makes the TextView at most this many ems wide
*
* @attr ref android.R.styleable#TextView_maxEms
*/
@android.view.RemotableViewMethod
public void setMaxEms(int maxems) {
mMaxWidth = maxems;
mMaxWidthMode = EMS;
requestLayout();
invalidate();
}
/**
* @return the maximum width of the TextView, expressed in ems or -1 if the maximum width
* was set in pixels instead (using {@link #setMaxWidth(int)} or {@link #setWidth(int)}).
*
* @see #setMaxEms(int)
* @see #setEms(int)
*
* @attr ref android.R.styleable#TextView_maxEms
*/
public int getMaxEms() {
return mMaxWidthMode == EMS ? mMaxWidth : -1;
}
/**
* Makes the TextView at most this many pixels wide
*
* @attr ref android.R.styleable#TextView_maxWidth
*/
@android.view.RemotableViewMethod
public void setMaxWidth(int maxpixels) {
mMaxWidth = maxpixels;
mMaxWidthMode = PIXELS;
requestLayout();
invalidate();
}
/**
* @return the maximum width of the TextView, in pixels or -1 if the maximum width
* was set in ems instead (using {@link #setMaxEms(int)} or {@link #setEms(int)}).
*
* @see #setMaxWidth(int)
* @see #setWidth(int)
*
* @attr ref android.R.styleable#TextView_maxWidth
*/
public int getMaxWidth() {
return mMaxWidthMode == PIXELS ? mMaxWidth : -1;
}
/**
* Makes the TextView exactly this many ems wide
*
* @see #setMaxEms(int)
* @see #setMinEms(int)
* @see #getMinEms()
* @see #getMaxEms()
*
* @attr ref android.R.styleable#TextView_ems
*/
@android.view.RemotableViewMethod
public void setEms(int ems) {
mMaxWidth = mMinWidth = ems;
mMaxWidthMode = mMinWidthMode = EMS;
requestLayout();
invalidate();
}
/**
* Makes the TextView exactly this many pixels wide.
* You could do the same thing by specifying this number in the
* LayoutParams.
*
* @see #setMaxWidth(int)
* @see #setMinWidth(int)
* @see #getMinWidth()
* @see #getMaxWidth()
*
* @attr ref android.R.styleable#TextView_width
*/
@android.view.RemotableViewMethod
public void setWidth(int pixels) {
mMaxWidth = mMinWidth = pixels;
mMaxWidthMode = mMinWidthMode = PIXELS;
requestLayout();
invalidate();
}
/**
* Sets line spacing for this TextView. Each line will have its height
* multiplied by <code>mult</code> and have <code>add</code> added to it.
*
* @attr ref android.R.styleable#TextView_lineSpacingExtra
* @attr ref android.R.styleable#TextView_lineSpacingMultiplier
*/
public void setLineSpacing(float add, float mult) {
if (mSpacingAdd != add || mSpacingMult != mult) {
mSpacingAdd = add;
mSpacingMult = mult;
if (mLayout != null) {
nullLayouts();
requestLayout();
invalidate();
}
}
}
/**
* Gets the line spacing multiplier
*
* @return the value by which each line's height is multiplied to get its actual height.
*
* @see #setLineSpacing(float, float)
* @see #getLineSpacingExtra()
*
* @attr ref android.R.styleable#TextView_lineSpacingMultiplier
*/
public float getLineSpacingMultiplier() {
return mSpacingMult;
}
/**
* Gets the line spacing extra space
*
* @return the extra space that is added to the height of each lines of this TextView.
*
* @see #setLineSpacing(float, float)
* @see #getLineSpacingMultiplier()
*
* @attr ref android.R.styleable#TextView_lineSpacingExtra
*/
public float getLineSpacingExtra() {
return mSpacingAdd;
}
/**
* Convenience method: Append the specified text to the TextView's
* display buffer, upgrading it to BufferType.EDITABLE if it was
* not already editable.
*/
public final void append(CharSequence text) {
append(text, 0, text.length());
}
/**
* Convenience method: Append the specified text slice to the TextView's
* display buffer, upgrading it to BufferType.EDITABLE if it was
* not already editable.
*/
public void append(CharSequence text, int start, int end) {
if (!(mText instanceof Editable)) {
setText(mText, BufferType.EDITABLE);
}
((Editable) mText).append(text, start, end);
}
private void updateTextColors() {
boolean inval = false;
int color = mTextColor.getColorForState(getDrawableState(), 0);
if (color != mCurTextColor) {
mCurTextColor = color;
inval = true;
}
if (mLinkTextColor != null) {
color = mLinkTextColor.getColorForState(getDrawableState(), 0);
if (color != mTextPaint.linkColor) {
mTextPaint.linkColor = color;
inval = true;
}
}
if (mHintTextColor != null) {
color = mHintTextColor.getColorForState(getDrawableState(), 0);
if (color != mCurHintTextColor) {
mCurHintTextColor = color;
if (mText.length() == 0) {
inval = true;
}
}
}
if (inval) {
// Text needs to be redrawn with the new color
if (mEditor != null) mEditor.invalidateTextDisplayList();
invalidate();
}
}
@Override
protected void drawableStateChanged() {
super.drawableStateChanged();
if (mTextColor != null && mTextColor.isStateful()
|| (mHintTextColor != null && mHintTextColor.isStateful())
|| (mLinkTextColor != null && mLinkTextColor.isStateful())) {
updateTextColors();
}
if (mDrawables != null) {
final int[] state = getDrawableState();
for (Drawable dr : mDrawables.mShowing) {
if (dr != null && dr.isStateful()) {
dr.setState(state);
}
}
}
}
@Override
public void drawableHotspotChanged(float x, float y) {
super.drawableHotspotChanged(x, y);
if (mDrawables != null) {
final int[] state = getDrawableState();
for (Drawable dr : mDrawables.mShowing) {
if (dr != null && dr.isStateful()) {
dr.setHotspot(x, y);
}
}
}
}
@Override
public Parcelable onSaveInstanceState() {
Parcelable superState = super.onSaveInstanceState();
// Save state if we are forced to
boolean save = mFreezesText;
int start = 0;
int end = 0;
if (mText != null) {
start = getSelectionStart();
end = getSelectionEnd();
if (start >= 0 || end >= 0) {
// Or save state if there is a selection
save = true;
}
}
if (save) {
SavedState ss = new SavedState(superState);
// XXX Should also save the current scroll position!
ss.selStart = start;
ss.selEnd = end;
if (mText instanceof Spanned) {
Spannable sp = new SpannableStringBuilder(mText);
if (mEditor != null) {
removeMisspelledSpans(sp);
sp.removeSpan(mEditor.mSuggestionRangeSpan);
}
ss.text = sp;
} else {
ss.text = mText.toString();
}
if (isFocused() && start >= 0 && end >= 0) {
ss.frozenWithFocus = true;
}
ss.error = getError();
if (mEditor != null) {
ss.editorState = mEditor.saveInstanceState();
}
return ss;
}
return superState;
}
void removeMisspelledSpans(Spannable spannable) {
SuggestionSpan[] suggestionSpans = spannable.getSpans(0, spannable.length(),
SuggestionSpan.class);
for (int i = 0; i < suggestionSpans.length; i++) {
int flags = suggestionSpans[i].getFlags();
if ((flags & SuggestionSpan.FLAG_EASY_CORRECT) != 0
&& (flags & SuggestionSpan.FLAG_MISSPELLED) != 0) {
spannable.removeSpan(suggestionSpans[i]);
}
}
}
@Override
public void onRestoreInstanceState(Parcelable state) {
if (!(state instanceof SavedState)) {
super.onRestoreInstanceState(state);
return;
}
SavedState ss = (SavedState)state;
super.onRestoreInstanceState(ss.getSuperState());
// XXX restore buffer type too, as well as lots of other stuff
if (ss.text != null) {
setText(ss.text);
}
if (ss.selStart >= 0 && ss.selEnd >= 0) {
if (mText instanceof Spannable) {
int len = mText.length();
if (ss.selStart > len || ss.selEnd > len) {
String restored = "";
if (ss.text != null) {
restored = "(restored) ";
}
Log.e(LOG_TAG, "Saved cursor position " + ss.selStart +
"/" + ss.selEnd + " out of range for " + restored +
"text " + mText);
} else {
Selection.setSelection((Spannable) mText, ss.selStart, ss.selEnd);
if (ss.frozenWithFocus) {
createEditorIfNeeded();
mEditor.mFrozenWithFocus = true;
}
}
}
}
if (ss.error != null) {
final CharSequence error = ss.error;
// Display the error later, after the first layout pass
post(new Runnable() {
public void run() {
if (mEditor == null || !mEditor.mErrorWasChanged) {
setError(error);
}
}
});
}
if (ss.editorState != null) {
createEditorIfNeeded();
mEditor.restoreInstanceState(ss.editorState);
}
}
/**
* Control whether this text view saves its entire text contents when
* freezing to an icicle, in addition to dynamic state such as cursor
* position. By default this is false, not saving the text. Set to true
* if the text in the text view is not being saved somewhere else in
* persistent storage (such as in a content provider) so that if the
* view is later thawed the user will not lose their data.
*
* @param freezesText Controls whether a frozen icicle should include the
* entire text data: true to include it, false to not.
*
* @attr ref android.R.styleable#TextView_freezesText
*/
@android.view.RemotableViewMethod
public void setFreezesText(boolean freezesText) {
mFreezesText = freezesText;
}
/**
* Return whether this text view is including its entire text contents
* in frozen icicles.
*
* @return Returns true if text is included, false if it isn't.
*
* @see #setFreezesText
*/
public boolean getFreezesText() {
return mFreezesText;
}
///////////////////////////////////////////////////////////////////////////
/**
* Sets the Factory used to create new Editables.
*/
public final void setEditableFactory(Editable.Factory factory) {
mEditableFactory = factory;
setText(mText);
}
/**
* Sets the Factory used to create new Spannables.
*/
public final void setSpannableFactory(Spannable.Factory factory) {
mSpannableFactory = factory;
setText(mText);
}
/**
* Sets the string value of the TextView. TextView <em>does not</em> accept
* HTML-like formatting, which you can do with text strings in XML resource files.
* To style your strings, attach android.text.style.* objects to a
* {@link android.text.SpannableString SpannableString}, or see the
* <a href="{@docRoot}guide/topics/resources/available-resources.html#stringresources">
* Available Resource Types</a> documentation for an example of setting
* formatted text in the XML resource file.
*
* @attr ref android.R.styleable#TextView_text
*/
@android.view.RemotableViewMethod
public final void setText(CharSequence text) {
setText(text, mBufferType);
}
/**
* Like {@link #setText(CharSequence)},
* except that the cursor position (if any) is retained in the new text.
*
* @param text The new text to place in the text view.
*
* @see #setText(CharSequence)
*/
@android.view.RemotableViewMethod
public final void setTextKeepState(CharSequence text) {
setTextKeepState(text, mBufferType);
}
/**
* Sets the text that this TextView is to display (see
* {@link #setText(CharSequence)}) and also sets whether it is stored
* in a styleable/spannable buffer and whether it is editable.
*
* @attr ref android.R.styleable#TextView_text
* @attr ref android.R.styleable#TextView_bufferType
*/
public void setText(CharSequence text, BufferType type) {
setText(text, type, true, 0);
if (mCharWrapper != null) {
mCharWrapper.mChars = null;
}
}
private void setText(CharSequence text, BufferType type,
boolean notifyBefore, int oldlen) {
if (text == null) {
text = "";
}
// If suggestions are not enabled, remove the suggestion spans from the text
if (!isSuggestionsEnabled()) {
text = removeSuggestionSpans(text);
}
if (!mUserSetTextScaleX) mTextPaint.setTextScaleX(1.0f);
if (text instanceof Spanned &&
((Spanned) text).getSpanStart(TextUtils.TruncateAt.MARQUEE) >= 0) {
if (ViewConfiguration.get(mContext).isFadingMarqueeEnabled()) {
setHorizontalFadingEdgeEnabled(true);
mMarqueeFadeMode = MARQUEE_FADE_NORMAL;
} else {
setHorizontalFadingEdgeEnabled(false);
mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS;
}
setEllipsize(TextUtils.TruncateAt.MARQUEE);
}
int n = mFilters.length;
for (int i = 0; i < n; i++) {
CharSequence out = mFilters[i].filter(text, 0, text.length(), EMPTY_SPANNED, 0, 0);
if (out != null) {
text = out;
}
}
if (notifyBefore) {
if (mText != null) {
oldlen = mText.length();
sendBeforeTextChanged(mText, 0, oldlen, text.length());
} else {
sendBeforeTextChanged("", 0, 0, text.length());
}
}
boolean needEditableForNotification = false;
if (mListeners != null && mListeners.size() != 0) {
needEditableForNotification = true;
}
if (type == BufferType.EDITABLE || getKeyListener() != null ||
needEditableForNotification) {
createEditorIfNeeded();
mEditor.forgetUndoRedo();
Editable t = mEditableFactory.newEditable(text);
text = t;
setFilters(t, mFilters);
InputMethodManager imm = InputMethodManager.peekInstance();
if (imm != null) imm.restartInput(this);
} else if (type == BufferType.SPANNABLE || mMovement != null) {
text = mSpannableFactory.newSpannable(text);
} else if (!(text instanceof CharWrapper)) {
text = TextUtils.stringOrSpannedString(text);
}
if (mAutoLinkMask != 0) {
Spannable s2;
if (type == BufferType.EDITABLE || text instanceof Spannable) {
s2 = (Spannable) text;
} else {
s2 = mSpannableFactory.newSpannable(text);
}
if (Linkify.addLinks(s2, mAutoLinkMask)) {
text = s2;
type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE;
/*
* We must go ahead and set the text before changing the
* movement method, because setMovementMethod() may call
* setText() again to try to upgrade the buffer type.
*/
mText = text;
// Do not change the movement method for text that support text selection as it
// would prevent an arbitrary cursor displacement.
if (mLinksClickable && !textCanBeSelected()) {
setMovementMethod(LinkMovementMethod.getInstance());
}
}
}
mBufferType = type;
mText = text;
if (mTransformation == null) {
mTransformed = text;
} else {
mTransformed = mTransformation.getTransformation(text, this);
}
final int textLength = text.length();
if (text instanceof Spannable && !mAllowTransformationLengthChange) {
Spannable sp = (Spannable) text;
// Remove any ChangeWatchers that might have come from other TextViews.
final ChangeWatcher[] watchers = sp.getSpans(0, sp.length(), ChangeWatcher.class);
final int count = watchers.length;
for (int i = 0; i < count; i++) {
sp.removeSpan(watchers[i]);
}
if (mChangeWatcher == null) mChangeWatcher = new ChangeWatcher();
sp.setSpan(mChangeWatcher, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE |
(CHANGE_WATCHER_PRIORITY << Spanned.SPAN_PRIORITY_SHIFT));
if (mEditor != null) mEditor.addSpanWatchers(sp);
if (mTransformation != null) {
sp.setSpan(mTransformation, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
}
if (mMovement != null) {
mMovement.initialize(this, (Spannable) text);
/*
* Initializing the movement method will have set the
* selection, so reset mSelectionMoved to keep that from
* interfering with the normal on-focus selection-setting.
*/
if (mEditor != null) mEditor.mSelectionMoved = false;
}
}
if (mLayout != null) {
checkForRelayout();
}
sendOnTextChanged(text, 0, oldlen, textLength);
onTextChanged(text, 0, oldlen, textLength);
notifyViewAccessibilityStateChangedIfNeeded(AccessibilityEvent.CONTENT_CHANGE_TYPE_TEXT);
if (needEditableForNotification) {
sendAfterTextChanged((Editable) text);
}
// SelectionModifierCursorController depends on textCanBeSelected, which depends on text
if (mEditor != null) mEditor.prepareCursorControllers();
}
/**
* Sets the TextView to display the specified slice of the specified
* char array. You must promise that you will not change the contents
* of the array except for right before another call to setText(),
* since the TextView has no way to know that the text
* has changed and that it needs to invalidate and re-layout.
*/
public final void setText(char[] text, int start, int len) {
int oldlen = 0;
if (start < 0 || len < 0 || start + len > text.length) {
throw new IndexOutOfBoundsException(start + ", " + len);
}
/*
* We must do the before-notification here ourselves because if
* the old text is a CharWrapper we destroy it before calling
* into the normal path.
*/
if (mText != null) {
oldlen = mText.length();
sendBeforeTextChanged(mText, 0, oldlen, len);
} else {
sendBeforeTextChanged("", 0, 0, len);
}
if (mCharWrapper == null) {
mCharWrapper = new CharWrapper(text, start, len);
} else {
mCharWrapper.set(text, start, len);
}
setText(mCharWrapper, mBufferType, false, oldlen);
}
/**
* Like {@link #setText(CharSequence, android.widget.TextView.BufferType)},
* except that the cursor position (if any) is retained in the new text.
*
* @see #setText(CharSequence, android.widget.TextView.BufferType)
*/
public final void setTextKeepState(CharSequence text, BufferType type) {
int start = getSelectionStart();
int end = getSelectionEnd();
int len = text.length();
setText(text, type);
if (start >= 0 || end >= 0) {
if (mText instanceof Spannable) {
Selection.setSelection((Spannable) mText,
Math.max(0, Math.min(start, len)),
Math.max(0, Math.min(end, len)));
}
}
}
@android.view.RemotableViewMethod
public final void setText(@StringRes int resid) {
setText(getContext().getResources().getText(resid));
}
public final void setText(@StringRes int resid, BufferType type) {
setText(getContext().getResources().getText(resid), type);
}
/**
* Sets the text to be displayed when the text of the TextView is empty.
* Null means to use the normal empty text. The hint does not currently
* participate in determining the size of the view.
*
* @attr ref android.R.styleable#TextView_hint
*/
@android.view.RemotableViewMethod
public final void setHint(CharSequence hint) {
mHint = TextUtils.stringOrSpannedString(hint);
if (mLayout != null) {
checkForRelayout();
}
if (mText.length() == 0) {
invalidate();
}
// Invalidate display list if hint is currently used
if (mEditor != null && mText.length() == 0 && mHint != null) {
mEditor.invalidateTextDisplayList();
}
}
/**
* Sets the text to be displayed when the text of the TextView is empty,
* from a resource.
*
* @attr ref android.R.styleable#TextView_hint
*/
@android.view.RemotableViewMethod
public final void setHint(@StringRes int resid) {
setHint(getContext().getResources().getText(resid));
}
/**
* Returns the hint that is displayed when the text of the TextView
* is empty.
*
* @attr ref android.R.styleable#TextView_hint
*/
@ViewDebug.CapturedViewProperty
public CharSequence getHint() {
return mHint;
}
boolean isSingleLine() {
return mSingleLine;
}
private static boolean isMultilineInputType(int type) {
return (type & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) ==
(EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE);
}
/**
* Removes the suggestion spans.
*/
CharSequence removeSuggestionSpans(CharSequence text) {
if (text instanceof Spanned) {
Spannable spannable;
if (text instanceof Spannable) {
spannable = (Spannable) text;
} else {
spannable = new SpannableString(text);
text = spannable;
}
SuggestionSpan[] spans = spannable.getSpans(0, text.length(), SuggestionSpan.class);
for (int i = 0; i < spans.length; i++) {
spannable.removeSpan(spans[i]);
}
}
return text;
}
/**
* Set the type of the content with a constant as defined for {@link EditorInfo#inputType}. This
* will take care of changing the key listener, by calling {@link #setKeyListener(KeyListener)},
* to match the given content type. If the given content type is {@link EditorInfo#TYPE_NULL}
* then a soft keyboard will not be displayed for this text view.
*
* Note that the maximum number of displayed lines (see {@link #setMaxLines(int)}) will be
* modified if you change the {@link EditorInfo#TYPE_TEXT_FLAG_MULTI_LINE} flag of the input
* type.
*
* @see #getInputType()
* @see #setRawInputType(int)
* @see android.text.InputType
* @attr ref android.R.styleable#TextView_inputType
*/
public void setInputType(int type) {
final boolean wasPassword = isPasswordInputType(getInputType());
final boolean wasVisiblePassword = isVisiblePasswordInputType(getInputType());
setInputType(type, false);
final boolean isPassword = isPasswordInputType(type);
final boolean isVisiblePassword = isVisiblePasswordInputType(type);
boolean forceUpdate = false;
if (isPassword) {
setTransformationMethod(PasswordTransformationMethod.getInstance());
setTypefaceFromAttrs(null /* fontFamily */, MONOSPACE, 0);
} else if (isVisiblePassword) {
if (mTransformation == PasswordTransformationMethod.getInstance()) {
forceUpdate = true;
}
setTypefaceFromAttrs(null /* fontFamily */, MONOSPACE, 0);
} else if (wasPassword || wasVisiblePassword) {
// not in password mode, clean up typeface and transformation
setTypefaceFromAttrs(null /* fontFamily */, -1, -1);
if (mTransformation == PasswordTransformationMethod.getInstance()) {
forceUpdate = true;
}
}
boolean singleLine = !isMultilineInputType(type);
// We need to update the single line mode if it has changed or we
// were previously in password mode.
if (mSingleLine != singleLine || forceUpdate) {
// Change single line mode, but only change the transformation if
// we are not in password mode.
applySingleLine(singleLine, !isPassword, true);
}
if (!isSuggestionsEnabled()) {
mText = removeSuggestionSpans(mText);
}
InputMethodManager imm = InputMethodManager.peekInstance();
if (imm != null) imm.restartInput(this);
}
/**
* It would be better to rely on the input type for everything. A password inputType should have
* a password transformation. We should hence use isPasswordInputType instead of this method.
*
* We should:
* - Call setInputType in setKeyListener instead of changing the input type directly (which
* would install the correct transformation).
* - Refuse the installation of a non-password transformation in setTransformation if the input
* type is password.
*
* However, this is like this for legacy reasons and we cannot break existing apps. This method
* is useful since it matches what the user can see (obfuscated text or not).
*
* @return true if the current transformation method is of the password type.
*/
private boolean hasPasswordTransformationMethod() {
return mTransformation instanceof PasswordTransformationMethod;
}
private static boolean isPasswordInputType(int inputType) {
final int variation =
inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION);
return variation
== (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)
|| variation
== (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD)
|| variation
== (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD);
}
private static boolean isVisiblePasswordInputType(int inputType) {
final int variation =
inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION);
return variation
== (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
}
/**
* Directly change the content type integer of the text view, without
* modifying any other state.
* @see #setInputType(int)
* @see android.text.InputType
* @attr ref android.R.styleable#TextView_inputType
*/
public void setRawInputType(int type) {
if (type == InputType.TYPE_NULL && mEditor == null) return; //TYPE_NULL is the default value
createEditorIfNeeded();
mEditor.mInputType = type;
}
private void setInputType(int type, boolean direct) {
final int cls = type & EditorInfo.TYPE_MASK_CLASS;
KeyListener input;
if (cls == EditorInfo.TYPE_CLASS_TEXT) {
boolean autotext = (type & EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT) != 0;
TextKeyListener.Capitalize cap;
if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS) != 0) {
cap = TextKeyListener.Capitalize.CHARACTERS;
} else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS) != 0) {
cap = TextKeyListener.Capitalize.WORDS;
} else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES) != 0) {
cap = TextKeyListener.Capitalize.SENTENCES;
} else {
cap = TextKeyListener.Capitalize.NONE;
}
input = TextKeyListener.getInstance(autotext, cap);
} else if (cls == EditorInfo.TYPE_CLASS_NUMBER) {
input = DigitsKeyListener.getInstance(
(type & EditorInfo.TYPE_NUMBER_FLAG_SIGNED) != 0,
(type & EditorInfo.TYPE_NUMBER_FLAG_DECIMAL) != 0);
} else if (cls == EditorInfo.TYPE_CLASS_DATETIME) {
switch (type & EditorInfo.TYPE_MASK_VARIATION) {
case EditorInfo.TYPE_DATETIME_VARIATION_DATE:
input = DateKeyListener.getInstance();
break;
case EditorInfo.TYPE_DATETIME_VARIATION_TIME:
input = TimeKeyListener.getInstance();
break;
default:
input = DateTimeKeyListener.getInstance();
break;
}
} else if (cls == EditorInfo.TYPE_CLASS_PHONE) {
input = DialerKeyListener.getInstance();
} else {
input = TextKeyListener.getInstance();
}
setRawInputType(type);
if (direct) {
createEditorIfNeeded();
mEditor.mKeyListener = input;
} else {
setKeyListenerOnly(input);
}
}
/**
* Get the type of the editable content.
*
* @see #setInputType(int)
* @see android.text.InputType
*/
public int getInputType() {
return mEditor == null ? EditorInfo.TYPE_NULL : mEditor.mInputType;
}
/**
* Change the editor type integer associated with the text view, which
* will be reported to an IME with {@link EditorInfo#imeOptions} when it
* has focus.
* @see #getImeOptions
* @see android.view.inputmethod.EditorInfo
* @attr ref android.R.styleable#TextView_imeOptions
*/
public void setImeOptions(int imeOptions) {
createEditorIfNeeded();
mEditor.createInputContentTypeIfNeeded();
mEditor.mInputContentType.imeOptions = imeOptions;
}
/**
* Get the type of the IME editor.
*
* @see #setImeOptions(int)
* @see android.view.inputmethod.EditorInfo
*/
public int getImeOptions() {
return mEditor != null && mEditor.mInputContentType != null
? mEditor.mInputContentType.imeOptions : EditorInfo.IME_NULL;
}
/**
* Change the custom IME action associated with the text view, which
* will be reported to an IME with {@link EditorInfo#actionLabel}
* and {@link EditorInfo#actionId} when it has focus.
* @see #getImeActionLabel
* @see #getImeActionId
* @see android.view.inputmethod.EditorInfo
* @attr ref android.R.styleable#TextView_imeActionLabel
* @attr ref android.R.styleable#TextView_imeActionId
*/
public void setImeActionLabel(CharSequence label, int actionId) {
createEditorIfNeeded();
mEditor.createInputContentTypeIfNeeded();
mEditor.mInputContentType.imeActionLabel = label;
mEditor.mInputContentType.imeActionId = actionId;
}
/**
* Get the IME action label previous set with {@link #setImeActionLabel}.
*
* @see #setImeActionLabel
* @see android.view.inputmethod.EditorInfo
*/
public CharSequence getImeActionLabel() {
return mEditor != null && mEditor.mInputContentType != null
? mEditor.mInputContentType.imeActionLabel : null;
}
/**
* Get the IME action ID previous set with {@link #setImeActionLabel}.
*
* @see #setImeActionLabel
* @see android.view.inputmethod.EditorInfo
*/
public int getImeActionId() {
return mEditor != null && mEditor.mInputContentType != null
? mEditor.mInputContentType.imeActionId : 0;
}
/**
* Set a special listener to be called when an action is performed
* on the text view. This will be called when the enter key is pressed,
* or when an action supplied to the IME is selected by the user. Setting
* this means that the normal hard key event will not insert a newline
* into the text view, even if it is multi-line; holding down the ALT
* modifier will, however, allow the user to insert a newline character.
*/
public void setOnEditorActionListener(OnEditorActionListener l) {
createEditorIfNeeded();
mEditor.createInputContentTypeIfNeeded();
mEditor.mInputContentType.onEditorActionListener = l;
}
/**
* Called when an attached input method calls
* {@link InputConnection#performEditorAction(int)
* InputConnection.performEditorAction()}
* for this text view. The default implementation will call your action
* listener supplied to {@link #setOnEditorActionListener}, or perform
* a standard operation for {@link EditorInfo#IME_ACTION_NEXT
* EditorInfo.IME_ACTION_NEXT}, {@link EditorInfo#IME_ACTION_PREVIOUS
* EditorInfo.IME_ACTION_PREVIOUS}, or {@link EditorInfo#IME_ACTION_DONE
* EditorInfo.IME_ACTION_DONE}.
*
* <p>For backwards compatibility, if no IME options have been set and the
* text view would not normally advance focus on enter, then
* the NEXT and DONE actions received here will be turned into an enter
* key down/up pair to go through the normal key handling.
*
* @param actionCode The code of the action being performed.
*
* @see #setOnEditorActionListener
*/
public void onEditorAction(int actionCode) {
final Editor.InputContentType ict = mEditor == null ? null : mEditor.mInputContentType;
if (ict != null) {
if (ict.onEditorActionListener != null) {
if (ict.onEditorActionListener.onEditorAction(this,
actionCode, null)) {
return;
}
}
// This is the handling for some default action.
// Note that for backwards compatibility we don't do this
// default handling if explicit ime options have not been given,
// instead turning this into the normal enter key codes that an
// app may be expecting.
if (actionCode == EditorInfo.IME_ACTION_NEXT) {
View v = focusSearch(FOCUS_FORWARD);
if (v != null) {
if (!v.requestFocus(FOCUS_FORWARD)) {
throw new IllegalStateException("focus search returned a view " +
"that wasn't able to take focus!");
}
}
return;
} else if (actionCode == EditorInfo.IME_ACTION_PREVIOUS) {
View v = focusSearch(FOCUS_BACKWARD);
if (v != null) {
if (!v.requestFocus(FOCUS_BACKWARD)) {
throw new IllegalStateException("focus search returned a view " +
"that wasn't able to take focus!");
}
}
return;
} else if (actionCode == EditorInfo.IME_ACTION_DONE) {
InputMethodManager imm = InputMethodManager.peekInstance();
if (imm != null && imm.isActive(this)) {
imm.hideSoftInputFromWindow(getWindowToken(), 0);
}
return;
}
}
ViewRootImpl viewRootImpl = getViewRootImpl();
if (viewRootImpl != null) {
long eventTime = SystemClock.uptimeMillis();
viewRootImpl.dispatchKeyFromIme(
new KeyEvent(eventTime, eventTime,
KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER, 0, 0,
KeyCharacterMap.VIRTUAL_KEYBOARD, 0,
KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE
| KeyEvent.FLAG_EDITOR_ACTION));
viewRootImpl.dispatchKeyFromIme(
new KeyEvent(SystemClock.uptimeMillis(), eventTime,
KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER, 0, 0,
KeyCharacterMap.VIRTUAL_KEYBOARD, 0,
KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE
| KeyEvent.FLAG_EDITOR_ACTION));
}
}
/**
* Set the private content type of the text, which is the
* {@link EditorInfo#privateImeOptions EditorInfo.privateImeOptions}
* field that will be filled in when creating an input connection.
*
* @see #getPrivateImeOptions()
* @see EditorInfo#privateImeOptions
* @attr ref android.R.styleable#TextView_privateImeOptions
*/
public void setPrivateImeOptions(String type) {
createEditorIfNeeded();
mEditor.createInputContentTypeIfNeeded();
mEditor.mInputContentType.privateImeOptions = type;
}
/**
* Get the private type of the content.
*
* @see #setPrivateImeOptions(String)
* @see EditorInfo#privateImeOptions
*/
public String getPrivateImeOptions() {
return mEditor != null && mEditor.mInputContentType != null
? mEditor.mInputContentType.privateImeOptions : null;
}
/**
* Set the extra input data of the text, which is the
* {@link EditorInfo#extras TextBoxAttribute.extras}
* Bundle that will be filled in when creating an input connection. The
* given integer is the resource ID of an XML resource holding an
* {@link android.R.styleable#InputExtras <input-extras>} XML tree.
*
* @see #getInputExtras(boolean)
* @see EditorInfo#extras
* @attr ref android.R.styleable#TextView_editorExtras
*/
public void setInputExtras(@XmlRes int xmlResId) throws XmlPullParserException, IOException {
createEditorIfNeeded();
XmlResourceParser parser = getResources().getXml(xmlResId);
mEditor.createInputContentTypeIfNeeded();
mEditor.mInputContentType.extras = new Bundle();
getResources().parseBundleExtras(parser, mEditor.mInputContentType.extras);
}
/**
* Retrieve the input extras currently associated with the text view, which
* can be viewed as well as modified.
*
* @param create If true, the extras will be created if they don't already
* exist. Otherwise, null will be returned if none have been created.
* @see #setInputExtras(int)
* @see EditorInfo#extras
* @attr ref android.R.styleable#TextView_editorExtras
*/
public Bundle getInputExtras(boolean create) {
if (mEditor == null && !create) return null;
createEditorIfNeeded();
if (mEditor.mInputContentType == null) {
if (!create) return null;
mEditor.createInputContentTypeIfNeeded();
}
if (mEditor.mInputContentType.extras == null) {
if (!create) return null;
mEditor.mInputContentType.extras = new Bundle();
}
return mEditor.mInputContentType.extras;
}
/**
* Returns the error message that was set to be displayed with
* {@link #setError}, or <code>null</code> if no error was set
* or if it the error was cleared by the widget after user input.
*/
public CharSequence getError() {
return mEditor == null ? null : mEditor.mError;
}
/**
* Sets the right-hand compound drawable of the TextView to the "error"
* icon and sets an error message that will be displayed in a popup when
* the TextView has focus. The icon and error message will be reset to
* null when any key events cause changes to the TextView's text. If the
* <code>error</code> is <code>null</code>, the error message and icon
* will be cleared.
*/
@android.view.RemotableViewMethod
public void setError(CharSequence error) {
if (error == null) {
setError(null, null);
} else {
Drawable dr = getContext().getDrawable(
com.android.internal.R.drawable.indicator_input_error);
dr.setBounds(0, 0, dr.getIntrinsicWidth(), dr.getIntrinsicHeight());
setError(error, dr);
}
}
/**
* Sets the right-hand compound drawable of the TextView to the specified
* icon and sets an error message that will be displayed in a popup when
* the TextView has focus. The icon and error message will be reset to
* null when any key events cause changes to the TextView's text. The
* drawable must already have had {@link Drawable#setBounds} set on it.
* If the <code>error</code> is <code>null</code>, the error message will
* be cleared (and you should provide a <code>null</code> icon as well).
*/
public void setError(CharSequence error, Drawable icon) {
createEditorIfNeeded();
mEditor.setError(error, icon);
notifyViewAccessibilityStateChangedIfNeeded(
AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED);
}
@Override
protected boolean setFrame(int l, int t, int r, int b) {
boolean result = super.setFrame(l, t, r, b);
if (mEditor != null) mEditor.setFrame();
restartMarqueeIfNeeded();
return result;
}
private void restartMarqueeIfNeeded() {
if (mRestartMarquee && mEllipsize == TextUtils.TruncateAt.MARQUEE) {
mRestartMarquee = false;
startMarquee();
}
}
/**
* Sets the list of input filters that will be used if the buffer is
* Editable. Has no effect otherwise.
*
* @attr ref android.R.styleable#TextView_maxLength
*/
public void setFilters(InputFilter[] filters) {
if (filters == null) {
throw new IllegalArgumentException();
}
mFilters = filters;
if (mText instanceof Editable) {
setFilters((Editable) mText, filters);
}
}
/**
* Sets the list of input filters on the specified Editable,
* and includes mInput in the list if it is an InputFilter.
*/
private void setFilters(Editable e, InputFilter[] filters) {
if (mEditor != null) {
final boolean undoFilter = mEditor.mUndoInputFilter != null;
final boolean keyFilter = mEditor.mKeyListener instanceof InputFilter;
int num = 0;
if (undoFilter) num++;
if (keyFilter) num++;
if (num > 0) {
InputFilter[] nf = new InputFilter[filters.length + num];
System.arraycopy(filters, 0, nf, 0, filters.length);
num = 0;
if (undoFilter) {
nf[filters.length] = mEditor.mUndoInputFilter;
num++;
}
if (keyFilter) {
nf[filters.length + num] = (InputFilter) mEditor.mKeyListener;
}
e.setFilters(nf);
return;
}
}
e.setFilters(filters);
}
/**
* Returns the current list of input filters.
*
* @attr ref android.R.styleable#TextView_maxLength
*/
public InputFilter[] getFilters() {
return mFilters;
}
/////////////////////////////////////////////////////////////////////////
private int getBoxHeight(Layout l) {
Insets opticalInsets = isLayoutModeOptical(mParent) ? getOpticalInsets() : Insets.NONE;
int padding = (l == mHintLayout) ?
getCompoundPaddingTop() + getCompoundPaddingBottom() :
getExtendedPaddingTop() + getExtendedPaddingBottom();
return getMeasuredHeight() - padding + opticalInsets.top + opticalInsets.bottom;
}
int getVerticalOffset(boolean forceNormal) {
int voffset = 0;
final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK;
Layout l = mLayout;
if (!forceNormal && mText.length() == 0 && mHintLayout != null) {
l = mHintLayout;
}
if (gravity != Gravity.TOP) {
int boxht = getBoxHeight(l);
int textht = l.getHeight();
if (textht < boxht) {
if (gravity == Gravity.BOTTOM)
voffset = boxht - textht;
else // (gravity == Gravity.CENTER_VERTICAL)
voffset = (boxht - textht) >> 1;
}
}
return voffset;
}
private int getBottomVerticalOffset(boolean forceNormal) {
int voffset = 0;
final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK;
Layout l = mLayout;
if (!forceNormal && mText.length() == 0 && mHintLayout != null) {
l = mHintLayout;
}
if (gravity != Gravity.BOTTOM) {
int boxht = getBoxHeight(l);
int textht = l.getHeight();
if (textht < boxht) {
if (gravity == Gravity.TOP)
voffset = boxht - textht;
else // (gravity == Gravity.CENTER_VERTICAL)
voffset = (boxht - textht) >> 1;
}
}
return voffset;
}
void invalidateCursorPath() {
if (mHighlightPathBogus) {
invalidateCursor();
} else {
final int horizontalPadding = getCompoundPaddingLeft();
final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true);
if (mEditor.mCursorCount == 0) {
synchronized (TEMP_RECTF) {
/*
* The reason for this concern about the thickness of the
* cursor and doing the floor/ceil on the coordinates is that
* some EditTexts (notably textfields in the Browser) have
* anti-aliased text where not all the characters are
* necessarily at integer-multiple locations. This should
* make sure the entire cursor gets invalidated instead of
* sometimes missing half a pixel.
*/
float thick = (float) Math.ceil(mTextPaint.getStrokeWidth());
if (thick < 1.0f) {
thick = 1.0f;
}
thick /= 2.0f;
// mHighlightPath is guaranteed to be non null at that point.
mHighlightPath.computeBounds(TEMP_RECTF, false);
invalidate((int) Math.floor(horizontalPadding + TEMP_RECTF.left - thick),
(int) Math.floor(verticalPadding + TEMP_RECTF.top - thick),
(int) Math.ceil(horizontalPadding + TEMP_RECTF.right + thick),
(int) Math.ceil(verticalPadding + TEMP_RECTF.bottom + thick));
}
} else {
for (int i = 0; i < mEditor.mCursorCount; i++) {
Rect bounds = mEditor.mCursorDrawable[i].getBounds();
invalidate(bounds.left + horizontalPadding, bounds.top + verticalPadding,
bounds.right + horizontalPadding, bounds.bottom + verticalPadding);
}
}
}
}
void invalidateCursor() {
int where = getSelectionEnd();
invalidateCursor(where, where, where);
}
private void invalidateCursor(int a, int b, int c) {
if (a >= 0 || b >= 0 || c >= 0) {
int start = Math.min(Math.min(a, b), c);
int end = Math.max(Math.max(a, b), c);
invalidateRegion(start, end, true /* Also invalidates blinking cursor */);
}
}
/**
* Invalidates the region of text enclosed between the start and end text offsets.
*/
void invalidateRegion(int start, int end, boolean invalidateCursor) {
if (mLayout == null) {
invalidate();
} else {
int lineStart = mLayout.getLineForOffset(start);
int top = mLayout.getLineTop(lineStart);
// This is ridiculous, but the descent from the line above
// can hang down into the line we really want to redraw,
// so we have to invalidate part of the line above to make
// sure everything that needs to be redrawn really is.
// (But not the whole line above, because that would cause
// the same problem with the descenders on the line above it!)
if (lineStart > 0) {
top -= mLayout.getLineDescent(lineStart - 1);
}
int lineEnd;
if (start == end)
lineEnd = lineStart;
else
lineEnd = mLayout.getLineForOffset(end);
int bottom = mLayout.getLineBottom(lineEnd);
// mEditor can be null in case selection is set programmatically.
if (invalidateCursor && mEditor != null) {
for (int i = 0; i < mEditor.mCursorCount; i++) {
Rect bounds = mEditor.mCursorDrawable[i].getBounds();
top = Math.min(top, bounds.top);
bottom = Math.max(bottom, bounds.bottom);
}
}
final int compoundPaddingLeft = getCompoundPaddingLeft();
final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true);
int left, right;
if (lineStart == lineEnd && !invalidateCursor) {
left = (int) mLayout.getPrimaryHorizontal(start);
right = (int) (mLayout.getPrimaryHorizontal(end) + 1.0);
left += compoundPaddingLeft;
right += compoundPaddingLeft;
} else {
// Rectangle bounding box when the region spans several lines
left = compoundPaddingLeft;
right = getWidth() - getCompoundPaddingRight();
}
invalidate(mScrollX + left, verticalPadding + top,
mScrollX + right, verticalPadding + bottom);
}
}
private void registerForPreDraw() {
if (!mPreDrawRegistered) {
getViewTreeObserver().addOnPreDrawListener(this);
mPreDrawRegistered = true;
}
}
private void unregisterForPreDraw() {
getViewTreeObserver().removeOnPreDrawListener(this);
mPreDrawRegistered = false;
mPreDrawListenerDetached = false;
}
/**
* {@inheritDoc}
*/
public boolean onPreDraw() {
if (mLayout == null) {
assumeLayout();
}
if (mMovement != null) {
/* This code also provides auto-scrolling when a cursor is moved using a
* CursorController (insertion point or selection limits).
* For selection, ensure start or end is visible depending on controller's state.
*/
int curs = getSelectionEnd();
// Do not create the controller if it is not already created.
if (mEditor != null && mEditor.mSelectionModifierCursorController != null &&
mEditor.mSelectionModifierCursorController.isSelectionStartDragged()) {
curs = getSelectionStart();
}
/*
* TODO: This should really only keep the end in view if
* it already was before the text changed. I'm not sure
* of a good way to tell from here if it was.
*/
if (curs < 0 && (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) {
curs = mText.length();
}
if (curs >= 0) {
bringPointIntoView(curs);
}
} else {
bringTextIntoView();
}
// This has to be checked here since:
// - onFocusChanged cannot start it when focus is given to a view with selected text (after
// a screen rotation) since layout is not yet initialized at that point.
if (mEditor != null && mEditor.mCreatedWithASelection) {
mEditor.startSelectionActionModeWithSelection();
mEditor.mCreatedWithASelection = false;
}
// Phone specific code (there is no ExtractEditText on tablets).
// ExtractEditText does not call onFocus when it is displayed, and mHasSelectionOnFocus can
// not be set. Do the test here instead.
if (this instanceof ExtractEditText && hasSelection() && mEditor != null) {
mEditor.startSelectionActionModeWithSelection();
}
unregisterForPreDraw();
return true;
}
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
mTemporaryDetach = false;
if (mEditor != null) mEditor.onAttachedToWindow();
if (mPreDrawListenerDetached) {
getViewTreeObserver().addOnPreDrawListener(this);
mPreDrawListenerDetached = false;
}
}
/** @hide */
@Override
protected void onDetachedFromWindowInternal() {
if (mPreDrawRegistered) {
getViewTreeObserver().removeOnPreDrawListener(this);
mPreDrawListenerDetached = true;
}
resetResolvedDrawables();
if (mEditor != null) mEditor.onDetachedFromWindow();
super.onDetachedFromWindowInternal();
}
@Override
public void onScreenStateChanged(int screenState) {
super.onScreenStateChanged(screenState);
if (mEditor != null) mEditor.onScreenStateChanged(screenState);
}
@Override
protected boolean isPaddingOffsetRequired() {
return mShadowRadius != 0 || mDrawables != null;
}
@Override
protected int getLeftPaddingOffset() {
return getCompoundPaddingLeft() - mPaddingLeft +
(int) Math.min(0, mShadowDx - mShadowRadius);
}
@Override
protected int getTopPaddingOffset() {
return (int) Math.min(0, mShadowDy - mShadowRadius);
}
@Override
protected int getBottomPaddingOffset() {
return (int) Math.max(0, mShadowDy + mShadowRadius);
}
private int getFudgedPaddingRight() {
// Add sufficient space for cursor and tone marks
int cursorWidth = 2 + (int)mTextPaint.density; // adequate for Material cursors
return Math.max(0, getCompoundPaddingRight() - (cursorWidth - 1));
}
@Override
protected int getRightPaddingOffset() {
return -(getFudgedPaddingRight() - mPaddingRight) +
(int) Math.max(0, mShadowDx + mShadowRadius);
}
@Override
protected boolean verifyDrawable(Drawable who) {
final boolean verified = super.verifyDrawable(who);
if (!verified && mDrawables != null) {
for (Drawable dr : mDrawables.mShowing) {
if (who == dr) {
return true;
}
}
}
return verified;
}
@Override
public void jumpDrawablesToCurrentState() {
super.jumpDrawablesToCurrentState();
if (mDrawables != null) {
for (Drawable dr : mDrawables.mShowing) {
if (dr != null) {
dr.jumpToCurrentState();
}
}
}
}
@Override
public void invalidateDrawable(Drawable drawable) {
boolean handled = false;
if (verifyDrawable(drawable)) {
final Rect dirty = drawable.getBounds();
int scrollX = mScrollX;
int scrollY = mScrollY;
// IMPORTANT: The coordinates below are based on the coordinates computed
// for each compound drawable in onDraw(). Make sure to update each section
// accordingly.
final TextView.Drawables drawables = mDrawables;
if (drawables != null) {
if (drawable == drawables.mShowing[Drawables.LEFT]) {
final int compoundPaddingTop = getCompoundPaddingTop();
final int compoundPaddingBottom = getCompoundPaddingBottom();
final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop;
scrollX += mPaddingLeft;
scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightLeft) / 2;
handled = true;
} else if (drawable == drawables.mShowing[Drawables.RIGHT]) {
final int compoundPaddingTop = getCompoundPaddingTop();
final int compoundPaddingBottom = getCompoundPaddingBottom();
final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop;
scrollX += (mRight - mLeft - mPaddingRight - drawables.mDrawableSizeRight);
scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightRight) / 2;
handled = true;
} else if (drawable == drawables.mShowing[Drawables.TOP]) {
final int compoundPaddingLeft = getCompoundPaddingLeft();
final int compoundPaddingRight = getCompoundPaddingRight();
final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft;
scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthTop) / 2;
scrollY += mPaddingTop;
handled = true;
} else if (drawable == drawables.mShowing[Drawables.BOTTOM]) {
final int compoundPaddingLeft = getCompoundPaddingLeft();
final int compoundPaddingRight = getCompoundPaddingRight();
final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft;
scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthBottom) / 2;
scrollY += (mBottom - mTop - mPaddingBottom - drawables.mDrawableSizeBottom);
handled = true;
}
}
if (handled) {
invalidate(dirty.left + scrollX, dirty.top + scrollY,
dirty.right + scrollX, dirty.bottom + scrollY);
}
}
if (!handled) {
super.invalidateDrawable(drawable);
}
}
@Override
public boolean hasOverlappingRendering() {
// horizontal fading edge causes SaveLayerAlpha, which doesn't support alpha modulation
return ((getBackground() != null && getBackground().getCurrent() != null)
|| mText instanceof Spannable || hasSelection()
|| isHorizontalFadingEdgeEnabled());
}
/**
*
* Returns the state of the {@code textIsSelectable} flag (See
* {@link #setTextIsSelectable setTextIsSelectable()}). Although you have to set this flag
* to allow users to select and copy text in a non-editable TextView, the content of an
* {@link EditText} can always be selected, independently of the value of this flag.
* <p>
*
* @return True if the text displayed in this TextView can be selected by the user.
*
* @attr ref android.R.styleable#TextView_textIsSelectable
*/
public boolean isTextSelectable() {
return mEditor == null ? false : mEditor.mTextIsSelectable;
}
/**
* Sets whether the content of this view is selectable by the user. The default is
* {@code false}, meaning that the content is not selectable.
* <p>
* When you use a TextView to display a useful piece of information to the user (such as a
* contact's address), make it selectable, so that the user can select and copy its
* content. You can also use set the XML attribute
* {@link android.R.styleable#TextView_textIsSelectable} to "true".
* <p>
* When you call this method to set the value of {@code textIsSelectable}, it sets
* the flags {@code focusable}, {@code focusableInTouchMode}, {@code clickable},
* and {@code longClickable} to the same value. These flags correspond to the attributes
* {@link android.R.styleable#View_focusable android:focusable},
* {@link android.R.styleable#View_focusableInTouchMode android:focusableInTouchMode},
* {@link android.R.styleable#View_clickable android:clickable}, and
* {@link android.R.styleable#View_longClickable android:longClickable}. To restore any of these
* flags to a state you had set previously, call one or more of the following methods:
* {@link #setFocusable(boolean) setFocusable()},
* {@link #setFocusableInTouchMode(boolean) setFocusableInTouchMode()},
* {@link #setClickable(boolean) setClickable()} or
* {@link #setLongClickable(boolean) setLongClickable()}.
*
* @param selectable Whether the content of this TextView should be selectable.
*/
public void setTextIsSelectable(boolean selectable) {
if (!selectable && mEditor == null) return; // false is default value with no edit data
createEditorIfNeeded();
if (mEditor.mTextIsSelectable == selectable) return;
mEditor.mTextIsSelectable = selectable;
setFocusableInTouchMode(selectable);
setFocusable(selectable);
setClickable(selectable);
setLongClickable(selectable);
// mInputType should already be EditorInfo.TYPE_NULL and mInput should be null
setMovementMethod(selectable ? ArrowKeyMovementMethod.getInstance() : null);
setText(mText, selectable ? BufferType.SPANNABLE : BufferType.NORMAL);
// Called by setText above, but safer in case of future code changes
mEditor.prepareCursorControllers();
}
@Override
protected int[] onCreateDrawableState(int extraSpace) {
final int[] drawableState;
if (mSingleLine) {
drawableState = super.onCreateDrawableState(extraSpace);
} else {
drawableState = super.onCreateDrawableState(extraSpace + 1);
mergeDrawableStates(drawableState, MULTILINE_STATE_SET);
}
if (isTextSelectable()) {
// Disable pressed state, which was introduced when TextView was made clickable.
// Prevents text color change.
// setClickable(false) would have a similar effect, but it also disables focus changes
// and long press actions, which are both needed by text selection.
final int length = drawableState.length;
for (int i = 0; i < length; i++) {
if (drawableState[i] == R.attr.state_pressed) {
final int[] nonPressedState = new int[length - 1];
System.arraycopy(drawableState, 0, nonPressedState, 0, i);
System.arraycopy(drawableState, i + 1, nonPressedState, i, length - i - 1);
return nonPressedState;
}
}
}
return drawableState;
}
private Path getUpdatedHighlightPath() {
Path highlight = null;
Paint highlightPaint = mHighlightPaint;
final int selStart = getSelectionStart();
final int selEnd = getSelectionEnd();
if (mMovement != null && (isFocused() || isPressed()) && selStart >= 0) {
if (selStart == selEnd) {
if (mEditor != null && mEditor.isCursorVisible() &&
(SystemClock.uptimeMillis() - mEditor.mShowCursor) %
(2 * Editor.BLINK) < Editor.BLINK) {
if (mHighlightPathBogus) {
if (mHighlightPath == null) mHighlightPath = new Path();
mHighlightPath.reset();
mLayout.getCursorPath(selStart, mHighlightPath, mText);
mEditor.updateCursorsPositions();
mHighlightPathBogus = false;
}
// XXX should pass to skin instead of drawing directly
highlightPaint.setColor(mCurTextColor);
highlightPaint.setStyle(Paint.Style.STROKE);
highlight = mHighlightPath;
}
} else {
if (mHighlightPathBogus) {
if (mHighlightPath == null) mHighlightPath = new Path();
mHighlightPath.reset();
mLayout.getSelectionPath(selStart, selEnd, mHighlightPath);
mHighlightPathBogus = false;
}
// XXX should pass to skin instead of drawing directly
highlightPaint.setColor(mHighlightColor);
highlightPaint.setStyle(Paint.Style.FILL);
highlight = mHighlightPath;
}
}
return highlight;
}
/**
* @hide
*/
public int getHorizontalOffsetForDrawables() {
return 0;
}
@Override
protected void onDraw(Canvas canvas) {
restartMarqueeIfNeeded();
// Draw the background for this view
super.onDraw(canvas);
final int compoundPaddingLeft = getCompoundPaddingLeft();
final int compoundPaddingTop = getCompoundPaddingTop();
final int compoundPaddingRight = getCompoundPaddingRight();
final int compoundPaddingBottom = getCompoundPaddingBottom();
final int scrollX = mScrollX;
final int scrollY = mScrollY;
final int right = mRight;
final int left = mLeft;
final int bottom = mBottom;
final int top = mTop;
final boolean isLayoutRtl = isLayoutRtl();
final int offset = getHorizontalOffsetForDrawables();
final int leftOffset = isLayoutRtl ? 0 : offset;
final int rightOffset = isLayoutRtl ? offset : 0 ;
final Drawables dr = mDrawables;
if (dr != null) {
/*
* Compound, not extended, because the icon is not clipped
* if the text height is smaller.
*/
int vspace = bottom - top - compoundPaddingBottom - compoundPaddingTop;
int hspace = right - left - compoundPaddingRight - compoundPaddingLeft;
// IMPORTANT: The coordinates computed are also used in invalidateDrawable()
// Make sure to update invalidateDrawable() when changing this code.
if (dr.mShowing[Drawables.LEFT] != null) {
canvas.save();
canvas.translate(scrollX + mPaddingLeft + leftOffset,
scrollY + compoundPaddingTop +
(vspace - dr.mDrawableHeightLeft) / 2);
dr.mShowing[Drawables.LEFT].draw(canvas);
canvas.restore();
}
// IMPORTANT: The coordinates computed are also used in invalidateDrawable()
// Make sure to update invalidateDrawable() when changing this code.
if (dr.mShowing[Drawables.RIGHT] != null) {
canvas.save();
canvas.translate(scrollX + right - left - mPaddingRight
- dr.mDrawableSizeRight - rightOffset,
scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightRight) / 2);
dr.mShowing[Drawables.RIGHT].draw(canvas);
canvas.restore();
}
// IMPORTANT: The coordinates computed are also used in invalidateDrawable()
// Make sure to update invalidateDrawable() when changing this code.
if (dr.mShowing[Drawables.TOP] != null) {
canvas.save();
canvas.translate(scrollX + compoundPaddingLeft +
(hspace - dr.mDrawableWidthTop) / 2, scrollY + mPaddingTop);
dr.mShowing[Drawables.TOP].draw(canvas);
canvas.restore();
}
// IMPORTANT: The coordinates computed are also used in invalidateDrawable()
// Make sure to update invalidateDrawable() when changing this code.
if (dr.mShowing[Drawables.BOTTOM] != null) {
canvas.save();
canvas.translate(scrollX + compoundPaddingLeft +
(hspace - dr.mDrawableWidthBottom) / 2,
scrollY + bottom - top - mPaddingBottom - dr.mDrawableSizeBottom);
dr.mShowing[Drawables.BOTTOM].draw(canvas);
canvas.restore();
}
}
int color = mCurTextColor;
if (mLayout == null) {
assumeLayout();
}
Layout layout = mLayout;
if (mHint != null && mText.length() == 0) {
if (mHintTextColor != null) {
color = mCurHintTextColor;
}
layout = mHintLayout;
}
mTextPaint.setColor(color);
mTextPaint.drawableState = getDrawableState();
canvas.save();
/* Would be faster if we didn't have to do this. Can we chop the
(displayable) text so that we don't need to do this ever?
*/
int extendedPaddingTop = getExtendedPaddingTop();
int extendedPaddingBottom = getExtendedPaddingBottom();
final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop;
final int maxScrollY = mLayout.getHeight() - vspace;
float clipLeft = compoundPaddingLeft + scrollX;
float clipTop = (scrollY == 0) ? 0 : extendedPaddingTop + scrollY;
float clipRight = right - left - getFudgedPaddingRight() + scrollX;
float clipBottom = bottom - top + scrollY -
((scrollY == maxScrollY) ? 0 : extendedPaddingBottom);
if (mShadowRadius != 0) {
clipLeft += Math.min(0, mShadowDx - mShadowRadius);
clipRight += Math.max(0, mShadowDx + mShadowRadius);
clipTop += Math.min(0, mShadowDy - mShadowRadius);
clipBottom += Math.max(0, mShadowDy + mShadowRadius);
}
canvas.clipRect(clipLeft, clipTop, clipRight, clipBottom);
int voffsetText = 0;
int voffsetCursor = 0;
// translate in by our padding
/* shortcircuit calling getVerticaOffset() */
if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) {
voffsetText = getVerticalOffset(false);
voffsetCursor = getVerticalOffset(true);
}
canvas.translate(compoundPaddingLeft, extendedPaddingTop + voffsetText);
final int layoutDirection = getLayoutDirection();
final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection);
if (mEllipsize == TextUtils.TruncateAt.MARQUEE &&
mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) {
if (!mSingleLine && getLineCount() == 1 && canMarquee() &&
(absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != Gravity.LEFT) {
final int width = mRight - mLeft;
final int padding = getCompoundPaddingLeft() + getCompoundPaddingRight();
final float dx = mLayout.getLineRight(0) - (width - padding);
canvas.translate(layout.getParagraphDirection(0) * dx, 0.0f);
}
if (mMarquee != null && mMarquee.isRunning()) {
final float dx = -mMarquee.getScroll();
canvas.translate(layout.getParagraphDirection(0) * dx, 0.0f);
}
}
final int cursorOffsetVertical = voffsetCursor - voffsetText;
Path highlight = getUpdatedHighlightPath();
if (mEditor != null) {
mEditor.onDraw(canvas, layout, highlight, mHighlightPaint, cursorOffsetVertical);
} else {
layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical);
}
if (mMarquee != null && mMarquee.shouldDrawGhost()) {
final float dx = mMarquee.getGhostOffset();
canvas.translate(layout.getParagraphDirection(0) * dx, 0.0f);
layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical);
}
canvas.restore();
}
@Override
public void getFocusedRect(Rect r) {
if (mLayout == null) {
super.getFocusedRect(r);
return;
}
int selEnd = getSelectionEnd();
if (selEnd < 0) {
super.getFocusedRect(r);
return;
}
int selStart = getSelectionStart();
if (selStart < 0 || selStart >= selEnd) {
int line = mLayout.getLineForOffset(selEnd);
r.top = mLayout.getLineTop(line);
r.bottom = mLayout.getLineBottom(line);
r.left = (int) mLayout.getPrimaryHorizontal(selEnd) - 2;
r.right = r.left + 4;
} else {
int lineStart = mLayout.getLineForOffset(selStart);
int lineEnd = mLayout.getLineForOffset(selEnd);
r.top = mLayout.getLineTop(lineStart);
r.bottom = mLayout.getLineBottom(lineEnd);
if (lineStart == lineEnd) {
r.left = (int) mLayout.getPrimaryHorizontal(selStart);
r.right = (int) mLayout.getPrimaryHorizontal(selEnd);
} else {
// Selection extends across multiple lines -- make the focused
// rect cover the entire width.
if (mHighlightPathBogus) {
if (mHighlightPath == null) mHighlightPath = new Path();
mHighlightPath.reset();
mLayout.getSelectionPath(selStart, selEnd, mHighlightPath);
mHighlightPathBogus = false;
}
synchronized (TEMP_RECTF) {
mHighlightPath.computeBounds(TEMP_RECTF, true);
r.left = (int)TEMP_RECTF.left-1;
r.right = (int)TEMP_RECTF.right+1;
}
}
}
// Adjust for padding and gravity.
int paddingLeft = getCompoundPaddingLeft();
int paddingTop = getExtendedPaddingTop();
if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) {
paddingTop += getVerticalOffset(false);
}
r.offset(paddingLeft, paddingTop);
int paddingBottom = getExtendedPaddingBottom();
r.bottom += paddingBottom;
}
/**
* Return the number of lines of text, or 0 if the internal Layout has not
* been built.
*/
public int getLineCount() {
return mLayout != null ? mLayout.getLineCount() : 0;
}
/**
* Return the baseline for the specified line (0...getLineCount() - 1)
* If bounds is not null, return the top, left, right, bottom extents
* of the specified line in it. If the internal Layout has not been built,
* return 0 and set bounds to (0, 0, 0, 0)
* @param line which line to examine (0..getLineCount() - 1)
* @param bounds Optional. If not null, it returns the extent of the line
* @return the Y-coordinate of the baseline
*/
public int getLineBounds(int line, Rect bounds) {
if (mLayout == null) {
if (bounds != null) {
bounds.set(0, 0, 0, 0);
}
return 0;
}
else {
int baseline = mLayout.getLineBounds(line, bounds);
int voffset = getExtendedPaddingTop();
if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) {
voffset += getVerticalOffset(true);
}
if (bounds != null) {
bounds.offset(getCompoundPaddingLeft(), voffset);
}
return baseline + voffset;
}
}
@Override
public int getBaseline() {
if (mLayout == null) {
return super.getBaseline();
}
int voffset = 0;
if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) {
voffset = getVerticalOffset(true);
}
if (isLayoutModeOptical(mParent)) {
voffset -= getOpticalInsets().top;
}
return getExtendedPaddingTop() + voffset + mLayout.getLineBaseline(0);
}
/**
* @hide
*/
@Override
protected int getFadeTop(boolean offsetRequired) {
if (mLayout == null) return 0;
int voffset = 0;
if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) {
voffset = getVerticalOffset(true);
}
if (offsetRequired) voffset += getTopPaddingOffset();
return getExtendedPaddingTop() + voffset;
}
/**
* @hide
*/
@Override
protected int getFadeHeight(boolean offsetRequired) {
return mLayout != null ? mLayout.getHeight() : 0;
}
@Override
public boolean onKeyPreIme(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
boolean isInSelectionMode = mEditor != null && mEditor.mSelectionActionMode != null;
if (isInSelectionMode) {
if (event.getAction() == KeyEvent.ACTION_DOWN && event.getRepeatCount() == 0) {
KeyEvent.DispatcherState state = getKeyDispatcherState();
if (state != null) {
state.startTracking(event, this);
}
return true;
} else if (event.getAction() == KeyEvent.ACTION_UP) {
KeyEvent.DispatcherState state = getKeyDispatcherState();
if (state != null) {
state.handleUpEvent(event);
}
if (event.isTracking() && !event.isCanceled()) {
stopSelectionActionMode();
return true;
}
}
}
}
return super.onKeyPreIme(keyCode, event);
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
int which = doKeyDown(keyCode, event, null);
if (which == 0) {
return super.onKeyDown(keyCode, event);
}
return true;
}
@Override
public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) {
KeyEvent down = KeyEvent.changeAction(event, KeyEvent.ACTION_DOWN);
int which = doKeyDown(keyCode, down, event);
if (which == 0) {
// Go through default dispatching.
return super.onKeyMultiple(keyCode, repeatCount, event);
}
if (which == -1) {
// Consumed the whole thing.
return true;
}
repeatCount--;
// We are going to dispatch the remaining events to either the input
// or movement method. To do this, we will just send a repeated stream
// of down and up events until we have done the complete repeatCount.
// It would be nice if those interfaces had an onKeyMultiple() method,
// but adding that is a more complicated change.
KeyEvent up = KeyEvent.changeAction(event, KeyEvent.ACTION_UP);
if (which == 1) {
// mEditor and mEditor.mInput are not null from doKeyDown
mEditor.mKeyListener.onKeyUp(this, (Editable)mText, keyCode, up);
while (--repeatCount > 0) {
mEditor.mKeyListener.onKeyDown(this, (Editable)mText, keyCode, down);
mEditor.mKeyListener.onKeyUp(this, (Editable)mText, keyCode, up);
}
hideErrorIfUnchanged();
} else if (which == 2) {
// mMovement is not null from doKeyDown
mMovement.onKeyUp(this, (Spannable)mText, keyCode, up);
while (--repeatCount > 0) {
mMovement.onKeyDown(this, (Spannable)mText, keyCode, down);
mMovement.onKeyUp(this, (Spannable)mText, keyCode, up);
}
}
return true;
}
/**
* Returns true if pressing ENTER in this field advances focus instead
* of inserting the character. This is true mostly in single-line fields,
* but also in mail addresses and subjects which will display on multiple
* lines but where it doesn't make sense to insert newlines.
*/
private boolean shouldAdvanceFocusOnEnter() {
if (getKeyListener() == null) {
return false;
}
if (mSingleLine) {
return true;
}
if (mEditor != null &&
(mEditor.mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) {
int variation = mEditor.mInputType & EditorInfo.TYPE_MASK_VARIATION;
if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS
|| variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT) {
return true;
}
}
return false;
}
/**
* Returns true if pressing TAB in this field advances focus instead
* of inserting the character. Insert tabs only in multi-line editors.
*/
private boolean shouldAdvanceFocusOnTab() {
if (getKeyListener() != null && !mSingleLine && mEditor != null &&
(mEditor.mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) {
int variation = mEditor.mInputType & EditorInfo.TYPE_MASK_VARIATION;
if (variation == EditorInfo.TYPE_TEXT_FLAG_IME_MULTI_LINE
|| variation == EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE) {
return false;
}
}
return true;
}
private int doKeyDown(int keyCode, KeyEvent event, KeyEvent otherEvent) {
if (!isEnabled()) {
return 0;
}
// If this is the initial keydown, we don't want to prevent a movement away from this view.
// While this shouldn't be necessary because any time we're preventing default movement we
// should be restricting the focus to remain within this view, thus we'll also receive
// the key up event, occasionally key up events will get dropped and we don't want to
// prevent the user from traversing out of this on the next key down.
if (event.getRepeatCount() == 0 && !KeyEvent.isModifierKey(keyCode)) {
mPreventDefaultMovement = false;
}
switch (keyCode) {
case KeyEvent.KEYCODE_ENTER:
if (event.hasNoModifiers()) {
// When mInputContentType is set, we know that we are
// running in a "modern" cupcake environment, so don't need
// to worry about the application trying to capture
// enter key events.
if (mEditor != null && mEditor.mInputContentType != null) {
// If there is an action listener, given them a
// chance to consume the event.
if (mEditor.mInputContentType.onEditorActionListener != null &&
mEditor.mInputContentType.onEditorActionListener.onEditorAction(
this, EditorInfo.IME_NULL, event)) {
mEditor.mInputContentType.enterDown = true;
// We are consuming the enter key for them.
return -1;
}
}
// If our editor should move focus when enter is pressed, or
// this is a generated event from an IME action button, then
// don't let it be inserted into the text.
if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0
|| shouldAdvanceFocusOnEnter()) {
if (hasOnClickListeners()) {
return 0;
}
return -1;
}
}
break;
case KeyEvent.KEYCODE_DPAD_CENTER:
if (event.hasNoModifiers()) {
if (shouldAdvanceFocusOnEnter()) {
return 0;
}
}
break;
case KeyEvent.KEYCODE_TAB:
if (event.hasNoModifiers() || event.hasModifiers(KeyEvent.META_SHIFT_ON)) {
if (shouldAdvanceFocusOnTab()) {
return 0;
}
}
break;
// Has to be done on key down (and not on key up) to correctly be intercepted.
case KeyEvent.KEYCODE_BACK:
if (mEditor != null && mEditor.mSelectionActionMode != null) {
stopSelectionActionMode();
return -1;
}
break;
}
if (mEditor != null && mEditor.mKeyListener != null) {
boolean doDown = true;
if (otherEvent != null) {
try {
beginBatchEdit();
final boolean handled = mEditor.mKeyListener.onKeyOther(this, (Editable) mText,
otherEvent);
hideErrorIfUnchanged();
doDown = false;
if (handled) {
return -1;
}
} catch (AbstractMethodError e) {
// onKeyOther was added after 1.0, so if it isn't
// implemented we need to try to dispatch as a regular down.
} finally {
endBatchEdit();
}
}
if (doDown) {
beginBatchEdit();
final boolean handled = mEditor.mKeyListener.onKeyDown(this, (Editable) mText,
keyCode, event);
endBatchEdit();
hideErrorIfUnchanged();
if (handled) return 1;
}
}
// bug 650865: sometimes we get a key event before a layout.
// don't try to move around if we don't know the layout.
if (mMovement != null && mLayout != null) {
boolean doDown = true;
if (otherEvent != null) {
try {
boolean handled = mMovement.onKeyOther(this, (Spannable) mText,
otherEvent);
doDown = false;
if (handled) {
return -1;
}
} catch (AbstractMethodError e) {
// onKeyOther was added after 1.0, so if it isn't
// implemented we need to try to dispatch as a regular down.
}
}
if (doDown) {
if (mMovement.onKeyDown(this, (Spannable)mText, keyCode, event)) {
if (event.getRepeatCount() == 0 && !KeyEvent.isModifierKey(keyCode)) {
mPreventDefaultMovement = true;
}
return 2;
}
}
}
return mPreventDefaultMovement && !KeyEvent.isModifierKey(keyCode) ? -1 : 0;
}
/**
* Resets the mErrorWasChanged flag, so that future calls to {@link #setError(CharSequence)}
* can be recorded.
* @hide
*/
public void resetErrorChangedFlag() {
/*
* Keep track of what the error was before doing the input
* so that if an input filter changed the error, we leave
* that error showing. Otherwise, we take down whatever
* error was showing when the user types something.
*/
if (mEditor != null) mEditor.mErrorWasChanged = false;
}
/**
* @hide
*/
public void hideErrorIfUnchanged() {
if (mEditor != null && mEditor.mError != null && !mEditor.mErrorWasChanged) {
setError(null, null);
}
}
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
if (!isEnabled()) {
return super.onKeyUp(keyCode, event);
}
if (!KeyEvent.isModifierKey(keyCode)) {
mPreventDefaultMovement = false;
}
switch (keyCode) {
case KeyEvent.KEYCODE_DPAD_CENTER:
if (event.hasNoModifiers()) {
/*
* If there is a click listener, just call through to
* super, which will invoke it.
*
* If there isn't a click listener, try to show the soft
* input method. (It will also
* call performClick(), but that won't do anything in
* this case.)
*/
if (!hasOnClickListeners()) {
if (mMovement != null && mText instanceof Editable
&& mLayout != null && onCheckIsTextEditor()) {
InputMethodManager imm = InputMethodManager.peekInstance();
viewClicked(imm);
if (imm != null && getShowSoftInputOnFocus()) {
imm.showSoftInput(this, 0);
}
}
}
}
return super.onKeyUp(keyCode, event);
case KeyEvent.KEYCODE_ENTER:
if (event.hasNoModifiers()) {
if (mEditor != null && mEditor.mInputContentType != null
&& mEditor.mInputContentType.onEditorActionListener != null
&& mEditor.mInputContentType.enterDown) {
mEditor.mInputContentType.enterDown = false;
if (mEditor.mInputContentType.onEditorActionListener.onEditorAction(
this, EditorInfo.IME_NULL, event)) {
return true;
}
}
if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0
|| shouldAdvanceFocusOnEnter()) {
/*
* If there is a click listener, just call through to
* super, which will invoke it.
*
* If there isn't a click listener, try to advance focus,
* but still call through to super, which will reset the
* pressed state and longpress state. (It will also
* call performClick(), but that won't do anything in
* this case.)
*/
if (!hasOnClickListeners()) {
View v = focusSearch(FOCUS_DOWN);
if (v != null) {
if (!v.requestFocus(FOCUS_DOWN)) {
throw new IllegalStateException(
"focus search returned a view " +
"that wasn't able to take focus!");
}
/*
* Return true because we handled the key; super
* will return false because there was no click
* listener.
*/
super.onKeyUp(keyCode, event);
return true;
} else if ((event.getFlags()
& KeyEvent.FLAG_EDITOR_ACTION) != 0) {
// No target for next focus, but make sure the IME
// if this came from it.
InputMethodManager imm = InputMethodManager.peekInstance();
if (imm != null && imm.isActive(this)) {
imm.hideSoftInputFromWindow(getWindowToken(), 0);
}
}
}
}
return super.onKeyUp(keyCode, event);
}
break;
}
if (mEditor != null && mEditor.mKeyListener != null)
if (mEditor.mKeyListener.onKeyUp(this, (Editable) mText, keyCode, event))
return true;
if (mMovement != null && mLayout != null)
if (mMovement.onKeyUp(this, (Spannable) mText, keyCode, event))
return true;
return super.onKeyUp(keyCode, event);
}
@Override
public boolean onCheckIsTextEditor() {
return mEditor != null && mEditor.mInputType != EditorInfo.TYPE_NULL;
}
@Override
public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
if (onCheckIsTextEditor() && isEnabled()) {
mEditor.createInputMethodStateIfNeeded();
outAttrs.inputType = getInputType();
if (mEditor.mInputContentType != null) {
outAttrs.imeOptions = mEditor.mInputContentType.imeOptions;
outAttrs.privateImeOptions = mEditor.mInputContentType.privateImeOptions;
outAttrs.actionLabel = mEditor.mInputContentType.imeActionLabel;
outAttrs.actionId = mEditor.mInputContentType.imeActionId;
outAttrs.extras = mEditor.mInputContentType.extras;
} else {
outAttrs.imeOptions = EditorInfo.IME_NULL;
}
if (focusSearch(FOCUS_DOWN) != null) {
outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_NEXT;
}
if (focusSearch(FOCUS_UP) != null) {
outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_PREVIOUS;
}
if ((outAttrs.imeOptions&EditorInfo.IME_MASK_ACTION)
== EditorInfo.IME_ACTION_UNSPECIFIED) {
if ((outAttrs.imeOptions&EditorInfo.IME_FLAG_NAVIGATE_NEXT) != 0) {
// An action has not been set, but the enter key will move to
// the next focus, so set the action to that.
outAttrs.imeOptions |= EditorInfo.IME_ACTION_NEXT;
} else {
// An action has not been set, and there is no focus to move
// to, so let's just supply a "done" action.
outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE;
}
if (!shouldAdvanceFocusOnEnter()) {
outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION;
}
}
if (isMultilineInputType(outAttrs.inputType)) {
// Multi-line text editors should always show an enter key.
outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION;
}
outAttrs.hintText = mHint;
if (mText instanceof Editable) {
InputConnection ic = new EditableInputConnection(this);
outAttrs.initialSelStart = getSelectionStart();
outAttrs.initialSelEnd = getSelectionEnd();
outAttrs.initialCapsMode = ic.getCursorCapsMode(getInputType());
return ic;
}
}
return null;
}
/**
* If this TextView contains editable content, extract a portion of it
* based on the information in <var>request</var> in to <var>outText</var>.
* @return Returns true if the text was successfully extracted, else false.
*/
public boolean extractText(ExtractedTextRequest request, ExtractedText outText) {
createEditorIfNeeded();
return mEditor.extractText(request, outText);
}
/**
* This is used to remove all style-impacting spans from text before new
* extracted text is being replaced into it, so that we don't have any
* lingering spans applied during the replace.
*/
static void removeParcelableSpans(Spannable spannable, int start, int end) {
Object[] spans = spannable.getSpans(start, end, ParcelableSpan.class);
int i = spans.length;
while (i > 0) {
i--;
spannable.removeSpan(spans[i]);
}
}
/**
* Apply to this text view the given extracted text, as previously
* returned by {@link #extractText(ExtractedTextRequest, ExtractedText)}.
*/
public void setExtractedText(ExtractedText text) {
Editable content = getEditableText();
if (text.text != null) {
if (content == null) {
setText(text.text, TextView.BufferType.EDITABLE);
} else if (text.partialStartOffset < 0) {
removeParcelableSpans(content, 0, content.length());
content.replace(0, content.length(), text.text);
} else {
final int N = content.length();
int start = text.partialStartOffset;
if (start > N) start = N;
int end = text.partialEndOffset;
if (end > N) end = N;
removeParcelableSpans(content, start, end);
content.replace(start, end, text.text);
}
}
// Now set the selection position... make sure it is in range, to
// avoid crashes. If this is a partial update, it is possible that
// the underlying text may have changed, causing us problems here.
// Also we just don't want to trust clients to do the right thing.
Spannable sp = (Spannable)getText();
final int N = sp.length();
int start = text.selectionStart;
if (start < 0) start = 0;
else if (start > N) start = N;
int end = text.selectionEnd;
if (end < 0) end = 0;
else if (end > N) end = N;
Selection.setSelection(sp, start, end);
// Finally, update the selection mode.
if ((text.flags&ExtractedText.FLAG_SELECTING) != 0) {
MetaKeyKeyListener.startSelecting(this, sp);
} else {
MetaKeyKeyListener.stopSelecting(this, sp);
}
}
/**
* @hide
*/
public void setExtracting(ExtractedTextRequest req) {
if (mEditor.mInputMethodState != null) {
mEditor.mInputMethodState.mExtractedTextRequest = req;
}
// This would stop a possible selection mode, but no such mode is started in case
// extracted mode will start. Some text is selected though, and will trigger an action mode
// in the extracted view.
mEditor.hideControllers();
}
/**
* Called by the framework in response to a text completion from
* the current input method, provided by it calling
* {@link InputConnection#commitCompletion
* InputConnection.commitCompletion()}. The default implementation does
* nothing; text views that are supporting auto-completion should override
* this to do their desired behavior.
*
* @param text The auto complete text the user has selected.
*/
public void onCommitCompletion(CompletionInfo text) {
// intentionally empty
}
/**
* Called by the framework in response to a text auto-correction (such as fixing a typo using a
* a dictionnary) from the current input method, provided by it calling
* {@link InputConnection#commitCorrection} InputConnection.commitCorrection()}. The default
* implementation flashes the background of the corrected word to provide feedback to the user.
*
* @param info The auto correct info about the text that was corrected.
*/
public void onCommitCorrection(CorrectionInfo info) {
if (mEditor != null) mEditor.onCommitCorrection(info);
}
public void beginBatchEdit() {
if (mEditor != null) mEditor.beginBatchEdit();
}
public void endBatchEdit() {
if (mEditor != null) mEditor.endBatchEdit();
}
/**
* Called by the framework in response to a request to begin a batch
* of edit operations through a call to link {@link #beginBatchEdit()}.
*/
public void onBeginBatchEdit() {
// intentionally empty
}
/**
* Called by the framework in response to a request to end a batch
* of edit operations through a call to link {@link #endBatchEdit}.
*/
public void onEndBatchEdit() {
// intentionally empty
}
/**
* Called by the framework in response to a private command from the
* current method, provided by it calling
* {@link InputConnection#performPrivateCommand
* InputConnection.performPrivateCommand()}.
*
* @param action The action name of the command.
* @param data Any additional data for the command. This may be null.
* @return Return true if you handled the command, else false.
*/
public boolean onPrivateIMECommand(String action, Bundle data) {
return false;
}
private void nullLayouts() {
if (mLayout instanceof BoringLayout && mSavedLayout == null) {
mSavedLayout = (BoringLayout) mLayout;
}
if (mHintLayout instanceof BoringLayout && mSavedHintLayout == null) {
mSavedHintLayout = (BoringLayout) mHintLayout;
}
mSavedMarqueeModeLayout = mLayout = mHintLayout = null;
mBoring = mHintBoring = null;
// Since it depends on the value of mLayout
if (mEditor != null) mEditor.prepareCursorControllers();
}
/**
* Make a new Layout based on the already-measured size of the view,
* on the assumption that it was measured correctly at some point.
*/
private void assumeLayout() {
int width = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight();
if (width < 1) {
width = 0;
}
int physicalWidth = width;
if (mHorizontallyScrolling) {
width = VERY_WIDE;
}
makeNewLayout(width, physicalWidth, UNKNOWN_BORING, UNKNOWN_BORING,
physicalWidth, false);
}
private Layout.Alignment getLayoutAlignment() {
Layout.Alignment alignment;
switch (getTextAlignment()) {
case TEXT_ALIGNMENT_GRAVITY:
switch (mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) {
case Gravity.START:
alignment = Layout.Alignment.ALIGN_NORMAL;
break;
case Gravity.END:
alignment = Layout.Alignment.ALIGN_OPPOSITE;
break;
case Gravity.LEFT:
alignment = Layout.Alignment.ALIGN_LEFT;
break;
case Gravity.RIGHT:
alignment = Layout.Alignment.ALIGN_RIGHT;
break;
case Gravity.CENTER_HORIZONTAL:
alignment = Layout.Alignment.ALIGN_CENTER;
break;
default:
alignment = Layout.Alignment.ALIGN_NORMAL;
break;
}
break;
case TEXT_ALIGNMENT_TEXT_START:
alignment = Layout.Alignment.ALIGN_NORMAL;
break;
case TEXT_ALIGNMENT_TEXT_END:
alignment = Layout.Alignment.ALIGN_OPPOSITE;
break;
case TEXT_ALIGNMENT_CENTER:
alignment = Layout.Alignment.ALIGN_CENTER;
break;
case TEXT_ALIGNMENT_VIEW_START:
alignment = (getLayoutDirection() == LAYOUT_DIRECTION_RTL) ?
Layout.Alignment.ALIGN_RIGHT : Layout.Alignment.ALIGN_LEFT;
break;
case TEXT_ALIGNMENT_VIEW_END:
alignment = (getLayoutDirection() == LAYOUT_DIRECTION_RTL) ?
Layout.Alignment.ALIGN_LEFT : Layout.Alignment.ALIGN_RIGHT;
break;
case TEXT_ALIGNMENT_INHERIT:
// This should never happen as we have already resolved the text alignment
// but better safe than sorry so we just fall through
default:
alignment = Layout.Alignment.ALIGN_NORMAL;
break;
}
return alignment;
}
/**
* The width passed in is now the desired layout width,
* not the full view width with padding.
* {@hide}
*/
protected void makeNewLayout(int wantWidth, int hintWidth,
BoringLayout.Metrics boring,
BoringLayout.Metrics hintBoring,
int ellipsisWidth, boolean bringIntoView) {
stopMarquee();
// Update "old" cached values
mOldMaximum = mMaximum;
mOldMaxMode = mMaxMode;
mHighlightPathBogus = true;
if (wantWidth < 0) {
wantWidth = 0;
}
if (hintWidth < 0) {
hintWidth = 0;
}
Layout.Alignment alignment = getLayoutAlignment();
final boolean testDirChange = mSingleLine && mLayout != null &&
(alignment == Layout.Alignment.ALIGN_NORMAL ||
alignment == Layout.Alignment.ALIGN_OPPOSITE);
int oldDir = 0;
if (testDirChange) oldDir = mLayout.getParagraphDirection(0);
boolean shouldEllipsize = mEllipsize != null && getKeyListener() == null;
final boolean switchEllipsize = mEllipsize == TruncateAt.MARQUEE &&
mMarqueeFadeMode != MARQUEE_FADE_NORMAL;
TruncateAt effectiveEllipsize = mEllipsize;
if (mEllipsize == TruncateAt.MARQUEE &&
mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) {
effectiveEllipsize = TruncateAt.END_SMALL;
}
if (mTextDir == null) {
mTextDir = getTextDirectionHeuristic();
}
mLayout = makeSingleLayout(wantWidth, boring, ellipsisWidth, alignment, shouldEllipsize,
effectiveEllipsize, effectiveEllipsize == mEllipsize);
if (switchEllipsize) {
TruncateAt oppositeEllipsize = effectiveEllipsize == TruncateAt.MARQUEE ?
TruncateAt.END : TruncateAt.MARQUEE;
mSavedMarqueeModeLayout = makeSingleLayout(wantWidth, boring, ellipsisWidth, alignment,
shouldEllipsize, oppositeEllipsize, effectiveEllipsize != mEllipsize);
}
shouldEllipsize = mEllipsize != null;
mHintLayout = null;
if (mHint != null) {
if (shouldEllipsize) hintWidth = wantWidth;
if (hintBoring == UNKNOWN_BORING) {
hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mTextDir,
mHintBoring);
if (hintBoring != null) {
mHintBoring = hintBoring;
}
}
if (hintBoring != null) {
if (hintBoring.width <= hintWidth &&
(!shouldEllipsize || hintBoring.width <= ellipsisWidth)) {
if (mSavedHintLayout != null) {
mHintLayout = mSavedHintLayout.
replaceOrMake(mHint, mTextPaint,
hintWidth, alignment, mSpacingMult, mSpacingAdd,
hintBoring, mIncludePad);
} else {
mHintLayout = BoringLayout.make(mHint, mTextPaint,
hintWidth, alignment, mSpacingMult, mSpacingAdd,
hintBoring, mIncludePad);
}
mSavedHintLayout = (BoringLayout) mHintLayout;
} else if (shouldEllipsize && hintBoring.width <= hintWidth) {
if (mSavedHintLayout != null) {
mHintLayout = mSavedHintLayout.
replaceOrMake(mHint, mTextPaint,
hintWidth, alignment, mSpacingMult, mSpacingAdd,
hintBoring, mIncludePad, mEllipsize,
ellipsisWidth);
} else {
mHintLayout = BoringLayout.make(mHint, mTextPaint,
hintWidth, alignment, mSpacingMult, mSpacingAdd,
hintBoring, mIncludePad, mEllipsize,
ellipsisWidth);
}
}
}
// TODO: code duplication with makeSingleLayout()
if (mHintLayout == null) {
StaticLayout.Builder builder = StaticLayout.Builder.obtain(mHint, 0,
mHint.length(), hintWidth)
.setPaint(mTextPaint)
.setAlignment(alignment)
.setTextDir(mTextDir)
.setSpacingMult(mSpacingMult)
.setSpacingAdd(mSpacingAdd)
.setIncludePad(mIncludePad)
.setBreakStrategy(mBreakStrategy);
if (shouldEllipsize) {
builder.setEllipsize(mEllipsize)
.setEllipsizedWidth(ellipsisWidth)
.setMaxLines(mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE);
}
mHintLayout = builder.build();
}
}
if (bringIntoView || (testDirChange && oldDir != mLayout.getParagraphDirection(0))) {
registerForPreDraw();
}
if (mEllipsize == TextUtils.TruncateAt.MARQUEE) {
if (!compressText(ellipsisWidth)) {
final int height = mLayoutParams.height;
// If the size of the view does not depend on the size of the text, try to
// start the marquee immediately
if (height != LayoutParams.WRAP_CONTENT && height != LayoutParams.MATCH_PARENT) {
startMarquee();
} else {
// Defer the start of the marquee until we know our width (see setFrame())
mRestartMarquee = true;
}
}
}
// CursorControllers need a non-null mLayout
if (mEditor != null) mEditor.prepareCursorControllers();
}
private Layout makeSingleLayout(int wantWidth, BoringLayout.Metrics boring, int ellipsisWidth,
Layout.Alignment alignment, boolean shouldEllipsize, TruncateAt effectiveEllipsize,
boolean useSaved) {
Layout result = null;
if (mText instanceof Spannable) {
result = new DynamicLayout(mText, mTransformed, mTextPaint, wantWidth,
alignment, mTextDir, mSpacingMult, mSpacingAdd, mIncludePad, mBreakStrategy,
getKeyListener() == null ? effectiveEllipsize : null, ellipsisWidth);
} else {
if (boring == UNKNOWN_BORING) {
boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring);
if (boring != null) {
mBoring = boring;
}
}
if (boring != null) {
if (boring.width <= wantWidth &&
(effectiveEllipsize == null || boring.width <= ellipsisWidth)) {
if (useSaved && mSavedLayout != null) {
result = mSavedLayout.replaceOrMake(mTransformed, mTextPaint,
wantWidth, alignment, mSpacingMult, mSpacingAdd,
boring, mIncludePad);
} else {
result = BoringLayout.make(mTransformed, mTextPaint,
wantWidth, alignment, mSpacingMult, mSpacingAdd,
boring, mIncludePad);
}
if (useSaved) {
mSavedLayout = (BoringLayout) result;
}
} else if (shouldEllipsize && boring.width <= wantWidth) {
if (useSaved && mSavedLayout != null) {
result = mSavedLayout.replaceOrMake(mTransformed, mTextPaint,
wantWidth, alignment, mSpacingMult, mSpacingAdd,
boring, mIncludePad, effectiveEllipsize,
ellipsisWidth);
} else {
result = BoringLayout.make(mTransformed, mTextPaint,
wantWidth, alignment, mSpacingMult, mSpacingAdd,
boring, mIncludePad, effectiveEllipsize,
ellipsisWidth);
}
}
}
}
if (result == null) {
StaticLayout.Builder builder = StaticLayout.Builder.obtain(mTransformed,
0, mTransformed.length(), wantWidth)
.setPaint(mTextPaint)
.setAlignment(alignment)
.setTextDir(mTextDir)
.setSpacingMult(mSpacingMult)
.setSpacingAdd(mSpacingAdd)
.setIncludePad(mIncludePad)
.setBreakStrategy(mBreakStrategy);
if (shouldEllipsize) {
builder.setEllipsize(effectiveEllipsize)
.setEllipsizedWidth(ellipsisWidth)
.setMaxLines(mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE);
}
// TODO: explore always setting maxLines
result = builder.build();
}
return result;
}
private boolean compressText(float width) {
if (isHardwareAccelerated()) return false;
// Only compress the text if it hasn't been compressed by the previous pass
if (width > 0.0f && mLayout != null && getLineCount() == 1 && !mUserSetTextScaleX &&
mTextPaint.getTextScaleX() == 1.0f) {
final float textWidth = mLayout.getLineWidth(0);
final float overflow = (textWidth + 1.0f - width) / width;
if (overflow > 0.0f && overflow <= Marquee.MARQUEE_DELTA_MAX) {
mTextPaint.setTextScaleX(1.0f - overflow - 0.005f);
post(new Runnable() {
public void run() {
requestLayout();
}
});
return true;
}
}
return false;
}
private static int desired(Layout layout) {
int n = layout.getLineCount();
CharSequence text = layout.getText();
float max = 0;
// if any line was wrapped, we can't use it.
// but it's ok for the last line not to have a newline
for (int i = 0; i < n - 1; i++) {
if (text.charAt(layout.getLineEnd(i) - 1) != '\n')
return -1;
}
for (int i = 0; i < n; i++) {
max = Math.max(max, layout.getLineWidth(i));
}
return (int) Math.ceil(max);
}
/**
* Set whether the TextView includes extra top and bottom padding to make
* room for accents that go above the normal ascent and descent.
* The default is true.
*
* @see #getIncludeFontPadding()
*
* @attr ref android.R.styleable#TextView_includeFontPadding
*/
public void setIncludeFontPadding(boolean includepad) {
if (mIncludePad != includepad) {
mIncludePad = includepad;
if (mLayout != null) {
nullLayouts();
requestLayout();
invalidate();
}
}
}
/**
* Gets whether the TextView includes extra top and bottom padding to make
* room for accents that go above the normal ascent and descent.
*
* @see #setIncludeFontPadding(boolean)
*
* @attr ref android.R.styleable#TextView_includeFontPadding
*/
public boolean getIncludeFontPadding() {
return mIncludePad;
}
private static final BoringLayout.Metrics UNKNOWN_BORING = new BoringLayout.Metrics();
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int widthMode = MeasureSpec.getMode(widthMeasureSpec);
int heightMode = MeasureSpec.getMode(heightMeasureSpec);
int widthSize = MeasureSpec.getSize(widthMeasureSpec);
int heightSize = MeasureSpec.getSize(heightMeasureSpec);
int width;
int height;
BoringLayout.Metrics boring = UNKNOWN_BORING;
BoringLayout.Metrics hintBoring = UNKNOWN_BORING;
if (mTextDir == null) {
mTextDir = getTextDirectionHeuristic();
}
int des = -1;
boolean fromexisting = false;
if (widthMode == MeasureSpec.EXACTLY) {
// Parent has told us how big to be. So be it.
width = widthSize;
} else {
if (mLayout != null && mEllipsize == null) {
des = desired(mLayout);
}
if (des < 0) {
boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring);
if (boring != null) {
mBoring = boring;
}
} else {
fromexisting = true;
}
if (boring == null || boring == UNKNOWN_BORING) {
if (des < 0) {
des = (int) Math.ceil(Layout.getDesiredWidth(mTransformed, mTextPaint));
}
width = des;
} else {
width = boring.width;
}
final Drawables dr = mDrawables;
if (dr != null) {
width = Math.max(width, dr.mDrawableWidthTop);
width = Math.max(width, dr.mDrawableWidthBottom);
}
if (mHint != null) {
int hintDes = -1;
int hintWidth;
if (mHintLayout != null && mEllipsize == null) {
hintDes = desired(mHintLayout);
}
if (hintDes < 0) {
hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mTextDir, mHintBoring);
if (hintBoring != null) {
mHintBoring = hintBoring;
}
}
if (hintBoring == null || hintBoring == UNKNOWN_BORING) {
if (hintDes < 0) {
hintDes = (int) Math.ceil(Layout.getDesiredWidth(mHint, mTextPaint));
}
hintWidth = hintDes;
} else {
hintWidth = hintBoring.width;
}
if (hintWidth > width) {
width = hintWidth;
}
}
width += getCompoundPaddingLeft() + getCompoundPaddingRight();
if (mMaxWidthMode == EMS) {
width = Math.min(width, mMaxWidth * getLineHeight());
} else {
width = Math.min(width, mMaxWidth);
}
if (mMinWidthMode == EMS) {
width = Math.max(width, mMinWidth * getLineHeight());
} else {
width = Math.max(width, mMinWidth);
}
// Check against our minimum width
width = Math.max(width, getSuggestedMinimumWidth());
if (widthMode == MeasureSpec.AT_MOST) {
width = Math.min(widthSize, width);
}
}
int want = width - getCompoundPaddingLeft() - getCompoundPaddingRight();
int unpaddedWidth = want;
if (mHorizontallyScrolling) want = VERY_WIDE;
int hintWant = want;
int hintWidth = (mHintLayout == null) ? hintWant : mHintLayout.getWidth();
if (mLayout == null) {
makeNewLayout(want, hintWant, boring, hintBoring,
width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false);
} else {
final boolean layoutChanged = (mLayout.getWidth() != want) ||
(hintWidth != hintWant) ||
(mLayout.getEllipsizedWidth() !=
width - getCompoundPaddingLeft() - getCompoundPaddingRight());
final boolean widthChanged = (mHint == null) &&
(mEllipsize == null) &&
(want > mLayout.getWidth()) &&
(mLayout instanceof BoringLayout || (fromexisting && des >= 0 && des <= want));
final boolean maximumChanged = (mMaxMode != mOldMaxMode) || (mMaximum != mOldMaximum);
if (layoutChanged || maximumChanged) {
if (!maximumChanged && widthChanged) {
mLayout.increaseWidthTo(want);
} else {
makeNewLayout(want, hintWant, boring, hintBoring,
width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false);
}
} else {
// Nothing has changed
}
}
if (heightMode == MeasureSpec.EXACTLY) {
// Parent has told us how big to be. So be it.
height = heightSize;
mDesiredHeightAtMeasure = -1;
} else {
int desired = getDesiredHeight();
height = desired;
mDesiredHeightAtMeasure = desired;
if (heightMode == MeasureSpec.AT_MOST) {
height = Math.min(desired, heightSize);
}
}
int unpaddedHeight = height - getCompoundPaddingTop() - getCompoundPaddingBottom();
if (mMaxMode == LINES && mLayout.getLineCount() > mMaximum) {
unpaddedHeight = Math.min(unpaddedHeight, mLayout.getLineTop(mMaximum));
}
/*
* We didn't let makeNewLayout() register to bring the cursor into view,
* so do it here if there is any possibility that it is needed.
*/
if (mMovement != null ||
mLayout.getWidth() > unpaddedWidth ||
mLayout.getHeight() > unpaddedHeight) {
registerForPreDraw();
} else {
scrollTo(0, 0);
}
setMeasuredDimension(width, height);
}
private int getDesiredHeight() {
return Math.max(
getDesiredHeight(mLayout, true),
getDesiredHeight(mHintLayout, mEllipsize != null));
}
private int getDesiredHeight(Layout layout, boolean cap) {
if (layout == null) {
return 0;
}
int linecount = layout.getLineCount();
int pad = getCompoundPaddingTop() + getCompoundPaddingBottom();
int desired = layout.getLineTop(linecount);
final Drawables dr = mDrawables;
if (dr != null) {
desired = Math.max(desired, dr.mDrawableHeightLeft);
desired = Math.max(desired, dr.mDrawableHeightRight);
}
desired += pad;
if (mMaxMode == LINES) {
/*
* Don't cap the hint to a certain number of lines.
* (Do cap it, though, if we have a maximum pixel height.)
*/
if (cap) {
if (linecount > mMaximum) {
desired = layout.getLineTop(mMaximum);
if (dr != null) {
desired = Math.max(desired, dr.mDrawableHeightLeft);
desired = Math.max(desired, dr.mDrawableHeightRight);
}
desired += pad;
linecount = mMaximum;
}
}
} else {
desired = Math.min(desired, mMaximum);
}
if (mMinMode == LINES) {
if (linecount < mMinimum) {
desired += getLineHeight() * (mMinimum - linecount);
}
} else {
desired = Math.max(desired, mMinimum);
}
// Check against our minimum height
desired = Math.max(desired, getSuggestedMinimumHeight());
return desired;
}
/**
* Check whether a change to the existing text layout requires a
* new view layout.
*/
private void checkForResize() {
boolean sizeChanged = false;
if (mLayout != null) {
// Check if our width changed
if (mLayoutParams.width == LayoutParams.WRAP_CONTENT) {
sizeChanged = true;
invalidate();
}
// Check if our height changed
if (mLayoutParams.height == LayoutParams.WRAP_CONTENT) {
int desiredHeight = getDesiredHeight();
if (desiredHeight != this.getHeight()) {
sizeChanged = true;
}
} else if (mLayoutParams.height == LayoutParams.MATCH_PARENT) {
if (mDesiredHeightAtMeasure >= 0) {
int desiredHeight = getDesiredHeight();
if (desiredHeight != mDesiredHeightAtMeasure) {
sizeChanged = true;
}
}
}
}
if (sizeChanged) {
requestLayout();
// caller will have already invalidated
}
}
/**
* Check whether entirely new text requires a new view layout
* or merely a new text layout.
*/
private void checkForRelayout() {
// If we have a fixed width, we can just swap in a new text layout
// if the text height stays the same or if the view height is fixed.
if ((mLayoutParams.width != LayoutParams.WRAP_CONTENT ||
(mMaxWidthMode == mMinWidthMode && mMaxWidth == mMinWidth)) &&
(mHint == null || mHintLayout != null) &&
(mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight() > 0)) {
// Static width, so try making a new text layout.
int oldht = mLayout.getHeight();
int want = mLayout.getWidth();
int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth();
/*
* No need to bring the text into view, since the size is not
* changing (unless we do the requestLayout(), in which case it
* will happen at measure).
*/
makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING,
mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(),
false);
if (mEllipsize != TextUtils.TruncateAt.MARQUEE) {
// In a fixed-height view, so use our new text layout.
if (mLayoutParams.height != LayoutParams.WRAP_CONTENT &&
mLayoutParams.height != LayoutParams.MATCH_PARENT) {
invalidate();
return;
}
// Dynamic height, but height has stayed the same,
// so use our new text layout.
if (mLayout.getHeight() == oldht &&
(mHintLayout == null || mHintLayout.getHeight() == oldht)) {
invalidate();
return;
}
}
// We lose: the height has changed and we have a dynamic height.
// Request a new view layout using our new text layout.
requestLayout();
invalidate();
} else {
// Dynamic width, so we have no choice but to request a new
// view layout with a new text layout.
nullLayouts();
requestLayout();
invalidate();
}
}
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
super.onLayout(changed, left, top, right, bottom);
if (mDeferScroll >= 0) {
int curs = mDeferScroll;
mDeferScroll = -1;
bringPointIntoView(Math.min(curs, mText.length()));
}
}
private boolean isShowingHint() {
return TextUtils.isEmpty(mText) && !TextUtils.isEmpty(mHint);
}
/**
* Returns true if anything changed.
*/
private boolean bringTextIntoView() {
Layout layout = isShowingHint() ? mHintLayout : mLayout;
int line = 0;
if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) {
line = layout.getLineCount() - 1;
}
Layout.Alignment a = layout.getParagraphAlignment(line);
int dir = layout.getParagraphDirection(line);
int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight();
int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom();
int ht = layout.getHeight();
int scrollx, scrolly;
// Convert to left, center, or right alignment.
if (a == Layout.Alignment.ALIGN_NORMAL) {
a = dir == Layout.DIR_LEFT_TO_RIGHT ? Layout.Alignment.ALIGN_LEFT :
Layout.Alignment.ALIGN_RIGHT;
} else if (a == Layout.Alignment.ALIGN_OPPOSITE){
a = dir == Layout.DIR_LEFT_TO_RIGHT ? Layout.Alignment.ALIGN_RIGHT :
Layout.Alignment.ALIGN_LEFT;
}
if (a == Layout.Alignment.ALIGN_CENTER) {
/*
* Keep centered if possible, or, if it is too wide to fit,
* keep leading edge in view.
*/
int left = (int) Math.floor(layout.getLineLeft(line));
int right = (int) Math.ceil(layout.getLineRight(line));
if (right - left < hspace) {
scrollx = (right + left) / 2 - hspace / 2;
} else {
if (dir < 0) {
scrollx = right - hspace;
} else {
scrollx = left;
}
}
} else if (a == Layout.Alignment.ALIGN_RIGHT) {
int right = (int) Math.ceil(layout.getLineRight(line));
scrollx = right - hspace;
} else { // a == Layout.Alignment.ALIGN_LEFT (will also be the default)
scrollx = (int) Math.floor(layout.getLineLeft(line));
}
if (ht < vspace) {
scrolly = 0;
} else {
if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) {
scrolly = ht - vspace;
} else {
scrolly = 0;
}
}
if (scrollx != mScrollX || scrolly != mScrollY) {
scrollTo(scrollx, scrolly);
return true;
} else {
return false;
}
}
/**
* Move the point, specified by the offset, into the view if it is needed.
* This has to be called after layout. Returns true if anything changed.
*/
public boolean bringPointIntoView(int offset) {
if (isLayoutRequested()) {
mDeferScroll = offset;
return false;
}
boolean changed = false;
Layout layout = isShowingHint() ? mHintLayout: mLayout;
if (layout == null) return changed;
int line = layout.getLineForOffset(offset);
int grav;
switch (layout.getParagraphAlignment(line)) {
case ALIGN_LEFT:
grav = 1;
break;
case ALIGN_RIGHT:
grav = -1;
break;
case ALIGN_NORMAL:
grav = layout.getParagraphDirection(line);
break;
case ALIGN_OPPOSITE:
grav = -layout.getParagraphDirection(line);
break;
case ALIGN_CENTER:
default:
grav = 0;
break;
}
// We only want to clamp the cursor to fit within the layout width
// in left-to-right modes, because in a right to left alignment,
// we want to scroll to keep the line-right on the screen, as other
// lines are likely to have text flush with the right margin, which
// we want to keep visible.
// A better long-term solution would probably be to measure both
// the full line and a blank-trimmed version, and, for example, use
// the latter measurement for centering and right alignment, but for
// the time being we only implement the cursor clamping in left to
// right where it is most likely to be annoying.
final boolean clamped = grav > 0;
// FIXME: Is it okay to truncate this, or should we round?
final int x = (int)layout.getPrimaryHorizontal(offset, clamped);
final int top = layout.getLineTop(line);
final int bottom = layout.getLineTop(line + 1);
int left = (int) Math.floor(layout.getLineLeft(line));
int right = (int) Math.ceil(layout.getLineRight(line));
int ht = layout.getHeight();
int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight();
int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom();
if (!mHorizontallyScrolling && right - left > hspace && right > x) {
// If cursor has been clamped, make sure we don't scroll.
right = Math.max(x, left + hspace);
}
int hslack = (bottom - top) / 2;
int vslack = hslack;
if (vslack > vspace / 4)
vslack = vspace / 4;
if (hslack > hspace / 4)
hslack = hspace / 4;
int hs = mScrollX;
int vs = mScrollY;
if (top - vs < vslack)
vs = top - vslack;
if (bottom - vs > vspace - vslack)
vs = bottom - (vspace - vslack);
if (ht - vs < vspace)
vs = ht - vspace;
if (0 - vs > 0)
vs = 0;
if (grav != 0) {
if (x - hs < hslack) {
hs = x - hslack;
}
if (x - hs > hspace - hslack) {
hs = x - (hspace - hslack);
}
}
if (grav < 0) {
if (left - hs > 0)
hs = left;
if (right - hs < hspace)
hs = right - hspace;
} else if (grav > 0) {
if (right - hs < hspace)
hs = right - hspace;
if (left - hs > 0)
hs = left;
} else /* grav == 0 */ {
if (right - left <= hspace) {
/*
* If the entire text fits, center it exactly.
*/
hs = left - (hspace - (right - left)) / 2;
} else if (x > right - hslack) {
/*
* If we are near the right edge, keep the right edge
* at the edge of the view.
*/
hs = right - hspace;
} else if (x < left + hslack) {
/*
* If we are near the left edge, keep the left edge
* at the edge of the view.
*/
hs = left;
} else if (left > hs) {
/*
* Is there whitespace visible at the left? Fix it if so.
*/
hs = left;
} else if (right < hs + hspace) {
/*
* Is there whitespace visible at the right? Fix it if so.
*/
hs = right - hspace;
} else {
/*
* Otherwise, float as needed.
*/
if (x - hs < hslack) {
hs = x - hslack;
}
if (x - hs > hspace - hslack) {
hs = x - (hspace - hslack);
}
}
}
if (hs != mScrollX || vs != mScrollY) {
if (mScroller == null) {
scrollTo(hs, vs);
} else {
long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll;
int dx = hs - mScrollX;
int dy = vs - mScrollY;
if (duration > ANIMATED_SCROLL_GAP) {
mScroller.startScroll(mScrollX, mScrollY, dx, dy);
awakenScrollBars(mScroller.getDuration());
invalidate();
} else {
if (!mScroller.isFinished()) {
mScroller.abortAnimation();
}
scrollBy(dx, dy);
}
mLastScroll = AnimationUtils.currentAnimationTimeMillis();
}
changed = true;
}
if (isFocused()) {
// This offsets because getInterestingRect() is in terms of viewport coordinates, but
// requestRectangleOnScreen() is in terms of content coordinates.
// The offsets here are to ensure the rectangle we are using is
// within our view bounds, in case the cursor is on the far left
// or right. If it isn't withing the bounds, then this request
// will be ignored.
if (mTempRect == null) mTempRect = new Rect();
mTempRect.set(x - 2, top, x + 2, bottom);
getInterestingRect(mTempRect, line);
mTempRect.offset(mScrollX, mScrollY);
if (requestRectangleOnScreen(mTempRect)) {
changed = true;
}
}
return changed;
}
/**
* Move the cursor, if needed, so that it is at an offset that is visible
* to the user. This will not move the cursor if it represents more than
* one character (a selection range). This will only work if the
* TextView contains spannable text; otherwise it will do nothing.
*
* @return True if the cursor was actually moved, false otherwise.
*/
public boolean moveCursorToVisibleOffset() {
if (!(mText instanceof Spannable)) {
return false;
}
int start = getSelectionStart();
int end = getSelectionEnd();
if (start != end) {
return false;
}
// First: make sure the line is visible on screen:
int line = mLayout.getLineForOffset(start);
final int top = mLayout.getLineTop(line);
final int bottom = mLayout.getLineTop(line + 1);
final int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom();
int vslack = (bottom - top) / 2;
if (vslack > vspace / 4)
vslack = vspace / 4;
final int vs = mScrollY;
if (top < (vs+vslack)) {
line = mLayout.getLineForVertical(vs+vslack+(bottom-top));
} else if (bottom > (vspace+vs-vslack)) {
line = mLayout.getLineForVertical(vspace+vs-vslack-(bottom-top));
}
// Next: make sure the character is visible on screen:
final int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight();
final int hs = mScrollX;
final int leftChar = mLayout.getOffsetForHorizontal(line, hs);
final int rightChar = mLayout.getOffsetForHorizontal(line, hspace+hs);
// line might contain bidirectional text
final int lowChar = leftChar < rightChar ? leftChar : rightChar;
final int highChar = leftChar > rightChar ? leftChar : rightChar;
int newStart = start;
if (newStart < lowChar) {
newStart = lowChar;
} else if (newStart > highChar) {
newStart = highChar;
}
if (newStart != start) {
Selection.setSelection((Spannable)mText, newStart);
return true;
}
return false;
}
@Override
public void computeScroll() {
if (mScroller != null) {
if (mScroller.computeScrollOffset()) {
mScrollX = mScroller.getCurrX();
mScrollY = mScroller.getCurrY();
invalidateParentCaches();
postInvalidate(); // So we draw again
}
}
}
private void getInterestingRect(Rect r, int line) {
convertFromViewportToContentCoordinates(r);
// Rectangle can can be expanded on first and last line to take
// padding into account.
// TODO Take left/right padding into account too?
if (line == 0) r.top -= getExtendedPaddingTop();
if (line == mLayout.getLineCount() - 1) r.bottom += getExtendedPaddingBottom();
}
private void convertFromViewportToContentCoordinates(Rect r) {
final int horizontalOffset = viewportToContentHorizontalOffset();
r.left += horizontalOffset;
r.right += horizontalOffset;
final int verticalOffset = viewportToContentVerticalOffset();
r.top += verticalOffset;
r.bottom += verticalOffset;
}
int viewportToContentHorizontalOffset() {
return getCompoundPaddingLeft() - mScrollX;
}
int viewportToContentVerticalOffset() {
int offset = getExtendedPaddingTop() - mScrollY;
if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) {
offset += getVerticalOffset(false);
}
return offset;
}
@Override
public void debug(int depth) {
super.debug(depth);
String output = debugIndent(depth);
output += "frame={" + mLeft + ", " + mTop + ", " + mRight
+ ", " + mBottom + "} scroll={" + mScrollX + ", " + mScrollY
+ "} ";
if (mText != null) {
output += "mText=\"" + mText + "\" ";
if (mLayout != null) {
output += "mLayout width=" + mLayout.getWidth()
+ " height=" + mLayout.getHeight();
}
} else {
output += "mText=NULL";
}
Log.d(VIEW_LOG_TAG, output);
}
/**
* Convenience for {@link Selection#getSelectionStart}.
*/
@ViewDebug.ExportedProperty(category = "text")
public int getSelectionStart() {
return Selection.getSelectionStart(getText());
}
/**
* Convenience for {@link Selection#getSelectionEnd}.
*/
@ViewDebug.ExportedProperty(category = "text")
public int getSelectionEnd() {
return Selection.getSelectionEnd(getText());
}
/**
* Return true iff there is a selection inside this text view.
*/
public boolean hasSelection() {
final int selectionStart = getSelectionStart();
final int selectionEnd = getSelectionEnd();
return selectionStart >= 0 && selectionStart != selectionEnd;
}
String getSelectedText() {
if (hasSelection()) {
return String.valueOf(mText.subSequence(getSelectionStart(), getSelectionEnd()));
}
return null;
}
/**
* Sets the properties of this field (lines, horizontally scrolling,
* transformation method) to be for a single-line input.
*
* @attr ref android.R.styleable#TextView_singleLine
*/
public void setSingleLine() {
setSingleLine(true);
}
/**
* Sets the properties of this field to transform input to ALL CAPS
* display. This may use a "small caps" formatting if available.
* This setting will be ignored if this field is editable or selectable.
*
* This call replaces the current transformation method. Disabling this
* will not necessarily restore the previous behavior from before this
* was enabled.
*
* @see #setTransformationMethod(TransformationMethod)
* @attr ref android.R.styleable#TextView_textAllCaps
*/
public void setAllCaps(boolean allCaps) {
if (allCaps) {
setTransformationMethod(new AllCapsTransformationMethod(getContext()));
} else {
setTransformationMethod(null);
}
}
/**
* If true, sets the properties of this field (number of lines, horizontally scrolling,
* transformation method) to be for a single-line input; if false, restores these to the default
* conditions.
*
* Note that the default conditions are not necessarily those that were in effect prior this
* method, and you may want to reset these properties to your custom values.
*
* @attr ref android.R.styleable#TextView_singleLine
*/
@android.view.RemotableViewMethod
public void setSingleLine(boolean singleLine) {
// Could be used, but may break backward compatibility.
// if (mSingleLine == singleLine) return;
setInputTypeSingleLine(singleLine);
applySingleLine(singleLine, true, true);
}
/**
* Adds or remove the EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE on the mInputType.
* @param singleLine
*/
private void setInputTypeSingleLine(boolean singleLine) {
if (mEditor != null &&
(mEditor.mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) {
if (singleLine) {
mEditor.mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE;
} else {
mEditor.mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE;
}
}
}
private void applySingleLine(boolean singleLine, boolean applyTransformation,
boolean changeMaxLines) {
mSingleLine = singleLine;
if (singleLine) {
setLines(1);
setHorizontallyScrolling(true);
if (applyTransformation) {
setTransformationMethod(SingleLineTransformationMethod.getInstance());
}
} else {
if (changeMaxLines) {
setMaxLines(Integer.MAX_VALUE);
}
setHorizontallyScrolling(false);
if (applyTransformation) {
setTransformationMethod(null);
}
}
}
/**
* Causes words in the text that are longer than the view is wide
* to be ellipsized instead of broken in the middle. You may also
* want to {@link #setSingleLine} or {@link #setHorizontallyScrolling}
* to constrain the text to a single line. Use <code>null</code>
* to turn off ellipsizing.
*
* If {@link #setMaxLines} has been used to set two or more lines,
* only {@link android.text.TextUtils.TruncateAt#END} and
* {@link android.text.TextUtils.TruncateAt#MARQUEE} are supported
* (other ellipsizing types will not do anything).
*
* @attr ref android.R.styleable#TextView_ellipsize
*/
public void setEllipsize(TextUtils.TruncateAt where) {
// TruncateAt is an enum. != comparison is ok between these singleton objects.
if (mEllipsize != where) {
mEllipsize = where;
if (mLayout != null) {
nullLayouts();
requestLayout();
invalidate();
}
}
}
/**
* Sets how many times to repeat the marquee animation. Only applied if the
* TextView has marquee enabled. Set to -1 to repeat indefinitely.
*
* @see #getMarqueeRepeatLimit()
*
* @attr ref android.R.styleable#TextView_marqueeRepeatLimit
*/
public void setMarqueeRepeatLimit(int marqueeLimit) {
mMarqueeRepeatLimit = marqueeLimit;
}
/**
* Gets the number of times the marquee animation is repeated. Only meaningful if the
* TextView has marquee enabled.
*
* @return the number of times the marquee animation is repeated. -1 if the animation
* repeats indefinitely
*
* @see #setMarqueeRepeatLimit(int)
*
* @attr ref android.R.styleable#TextView_marqueeRepeatLimit
*/
public int getMarqueeRepeatLimit() {
return mMarqueeRepeatLimit;
}
/**
* Returns where, if anywhere, words that are longer than the view
* is wide should be ellipsized.
*/
@ViewDebug.ExportedProperty
public TextUtils.TruncateAt getEllipsize() {
return mEllipsize;
}
/**
* Set the TextView so that when it takes focus, all the text is
* selected.
*
* @attr ref android.R.styleable#TextView_selectAllOnFocus
*/
@android.view.RemotableViewMethod
public void setSelectAllOnFocus(boolean selectAllOnFocus) {
createEditorIfNeeded();
mEditor.mSelectAllOnFocus = selectAllOnFocus;
if (selectAllOnFocus && !(mText instanceof Spannable)) {
setText(mText, BufferType.SPANNABLE);
}
}
/**
* Set whether the cursor is visible. The default is true. Note that this property only
* makes sense for editable TextView.
*
* @see #isCursorVisible()
*
* @attr ref android.R.styleable#TextView_cursorVisible
*/
@android.view.RemotableViewMethod
public void setCursorVisible(boolean visible) {
if (visible && mEditor == null) return; // visible is the default value with no edit data
createEditorIfNeeded();
if (mEditor.mCursorVisible != visible) {
mEditor.mCursorVisible = visible;
invalidate();
mEditor.makeBlink();
// InsertionPointCursorController depends on mCursorVisible
mEditor.prepareCursorControllers();
}
}
/**
* @return whether or not the cursor is visible (assuming this TextView is editable)
*
* @see #setCursorVisible(boolean)
*
* @attr ref android.R.styleable#TextView_cursorVisible
*/
public boolean isCursorVisible() {
// true is the default value
return mEditor == null ? true : mEditor.mCursorVisible;
}
private boolean canMarquee() {
int width = (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight());
return width > 0 && (mLayout.getLineWidth(0) > width ||
(mMarqueeFadeMode != MARQUEE_FADE_NORMAL && mSavedMarqueeModeLayout != null &&
mSavedMarqueeModeLayout.getLineWidth(0) > width));
}
private void startMarquee() {
// Do not ellipsize EditText
if (getKeyListener() != null) return;
if (compressText(getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight())) {
return;
}
if ((mMarquee == null || mMarquee.isStopped()) && (isFocused() || isSelected()) &&
getLineCount() == 1 && canMarquee()) {
if (mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) {
mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_FADE;
final Layout tmp = mLayout;
mLayout = mSavedMarqueeModeLayout;
mSavedMarqueeModeLayout = tmp;
setHorizontalFadingEdgeEnabled(true);
requestLayout();
invalidate();
}
if (mMarquee == null) mMarquee = new Marquee(this);
mMarquee.start(mMarqueeRepeatLimit);
}
}
private void stopMarquee() {
if (mMarquee != null && !mMarquee.isStopped()) {
mMarquee.stop();
}
if (mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_FADE) {
mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS;
final Layout tmp = mSavedMarqueeModeLayout;
mSavedMarqueeModeLayout = mLayout;
mLayout = tmp;
setHorizontalFadingEdgeEnabled(false);
requestLayout();
invalidate();
}
}
private void startStopMarquee(boolean start) {
if (mEllipsize == TextUtils.TruncateAt.MARQUEE) {
if (start) {
startMarquee();
} else {
stopMarquee();
}
}
}
/**
* This method is called when the text is changed, in case any subclasses
* would like to know.
*
* Within <code>text</code>, the <code>lengthAfter</code> characters
* beginning at <code>start</code> have just replaced old text that had
* length <code>lengthBefore</code>. It is an error to attempt to make
* changes to <code>text</code> from this callback.
*
* @param text The text the TextView is displaying
* @param start The offset of the start of the range of the text that was
* modified
* @param lengthBefore The length of the former text that has been replaced
* @param lengthAfter The length of the replacement modified text
*/
protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) {
// intentionally empty, template pattern method can be overridden by subclasses
}
/**
* This method is called when the selection has changed, in case any
* subclasses would like to know.
*
* @param selStart The new selection start location.
* @param selEnd The new selection end location.
*/
protected void onSelectionChanged(int selStart, int selEnd) {
sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED);
}
/**
* Adds a TextWatcher to the list of those whose methods are called
* whenever this TextView's text changes.
* <p>
* In 1.0, the {@link TextWatcher#afterTextChanged} method was erroneously
* not called after {@link #setText} calls. Now, doing {@link #setText}
* if there are any text changed listeners forces the buffer type to
* Editable if it would not otherwise be and does call this method.
*/
public void addTextChangedListener(TextWatcher watcher) {
if (mListeners == null) {
mListeners = new ArrayList<TextWatcher>();
}
mListeners.add(watcher);
}
/**
* Removes the specified TextWatcher from the list of those whose
* methods are called
* whenever this TextView's text changes.
*/
public void removeTextChangedListener(TextWatcher watcher) {
if (mListeners != null) {
int i = mListeners.indexOf(watcher);
if (i >= 0) {
mListeners.remove(i);
}
}
}
private void sendBeforeTextChanged(CharSequence text, int start, int before, int after) {
if (mListeners != null) {
final ArrayList<TextWatcher> list = mListeners;
final int count = list.size();
for (int i = 0; i < count; i++) {
list.get(i).beforeTextChanged(text, start, before, after);
}
}
// The spans that are inside or intersect the modified region no longer make sense
removeIntersectingNonAdjacentSpans(start, start + before, SpellCheckSpan.class);
removeIntersectingNonAdjacentSpans(start, start + before, SuggestionSpan.class);
}
// Removes all spans that are inside or actually overlap the start..end range
private <T> void removeIntersectingNonAdjacentSpans(int start, int end, Class<T> type) {
if (!(mText instanceof Editable)) return;
Editable text = (Editable) mText;
T[] spans = text.getSpans(start, end, type);
final int length = spans.length;
for (int i = 0; i < length; i++) {
final int spanStart = text.getSpanStart(spans[i]);
final int spanEnd = text.getSpanEnd(spans[i]);
if (spanEnd == start || spanStart == end) break;
text.removeSpan(spans[i]);
}
}
void removeAdjacentSuggestionSpans(final int pos) {
if (!(mText instanceof Editable)) return;
final Editable text = (Editable) mText;
final SuggestionSpan[] spans = text.getSpans(pos, pos, SuggestionSpan.class);
final int length = spans.length;
for (int i = 0; i < length; i++) {
final int spanStart = text.getSpanStart(spans[i]);
final int spanEnd = text.getSpanEnd(spans[i]);
if (spanEnd == pos || spanStart == pos) {
if (SpellChecker.haveWordBoundariesChanged(text, pos, pos, spanStart, spanEnd)) {
text.removeSpan(spans[i]);
}
}
}
}
/**
* Not private so it can be called from an inner class without going
* through a thunk.
*/
void sendOnTextChanged(CharSequence text, int start, int before, int after) {
if (mListeners != null) {
final ArrayList<TextWatcher> list = mListeners;
final int count = list.size();
for (int i = 0; i < count; i++) {
list.get(i).onTextChanged(text, start, before, after);
}
}
if (mEditor != null) mEditor.sendOnTextChanged(start, after);
}
/**
* Not private so it can be called from an inner class without going
* through a thunk.
*/
void sendAfterTextChanged(Editable text) {
if (mListeners != null) {
final ArrayList<TextWatcher> list = mListeners;
final int count = list.size();
for (int i = 0; i < count; i++) {
list.get(i).afterTextChanged(text);
}
}
hideErrorIfUnchanged();
}
void updateAfterEdit() {
invalidate();
int curs = getSelectionStart();
if (curs >= 0 || (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) {
registerForPreDraw();
}
checkForResize();
if (curs >= 0) {
mHighlightPathBogus = true;
if (mEditor != null) mEditor.makeBlink();
bringPointIntoView(curs);
}
}
/**
* Not private so it can be called from an inner class without going
* through a thunk.
*/
void handleTextChanged(CharSequence buffer, int start, int before, int after) {
final Editor.InputMethodState ims = mEditor == null ? null : mEditor.mInputMethodState;
if (ims == null || ims.mBatchEditNesting == 0) {
updateAfterEdit();
}
if (ims != null) {
ims.mContentChanged = true;
if (ims.mChangedStart < 0) {
ims.mChangedStart = start;
ims.mChangedEnd = start+before;
} else {
ims.mChangedStart = Math.min(ims.mChangedStart, start);
ims.mChangedEnd = Math.max(ims.mChangedEnd, start + before - ims.mChangedDelta);
}
ims.mChangedDelta += after-before;
}
resetErrorChangedFlag();
sendOnTextChanged(buffer, start, before, after);
onTextChanged(buffer, start, before, after);
}
/**
* Not private so it can be called from an inner class without going
* through a thunk.
*/
void spanChange(Spanned buf, Object what, int oldStart, int newStart, int oldEnd, int newEnd) {
// XXX Make the start and end move together if this ends up
// spending too much time invalidating.
boolean selChanged = false;
int newSelStart=-1, newSelEnd=-1;
final Editor.InputMethodState ims = mEditor == null ? null : mEditor.mInputMethodState;
if (what == Selection.SELECTION_END) {
selChanged = true;
newSelEnd = newStart;
if (oldStart >= 0 || newStart >= 0) {
invalidateCursor(Selection.getSelectionStart(buf), oldStart, newStart);
checkForResize();
registerForPreDraw();
if (mEditor != null) mEditor.makeBlink();
}
}
if (what == Selection.SELECTION_START) {
selChanged = true;
newSelStart = newStart;
if (oldStart >= 0 || newStart >= 0) {
int end = Selection.getSelectionEnd(buf);
invalidateCursor(end, oldStart, newStart);
}
}
if (selChanged) {
mHighlightPathBogus = true;
if (mEditor != null && !isFocused()) mEditor.mSelectionMoved = true;
if ((buf.getSpanFlags(what)&Spanned.SPAN_INTERMEDIATE) == 0) {
if (newSelStart < 0) {
newSelStart = Selection.getSelectionStart(buf);
}
if (newSelEnd < 0) {
newSelEnd = Selection.getSelectionEnd(buf);
}
onSelectionChanged(newSelStart, newSelEnd);
}
}
if (what instanceof UpdateAppearance || what instanceof ParagraphStyle ||
what instanceof CharacterStyle) {
if (ims == null || ims.mBatchEditNesting == 0) {
invalidate();
mHighlightPathBogus = true;
checkForResize();
} else {
ims.mContentChanged = true;
}
if (mEditor != null) {
if (oldStart >= 0) mEditor.invalidateTextDisplayList(mLayout, oldStart, oldEnd);
if (newStart >= 0) mEditor.invalidateTextDisplayList(mLayout, newStart, newEnd);
}
}
if (MetaKeyKeyListener.isMetaTracker(buf, what)) {
mHighlightPathBogus = true;
if (ims != null && MetaKeyKeyListener.isSelectingMetaTracker(buf, what)) {
ims.mSelectionModeChanged = true;
}
if (Selection.getSelectionStart(buf) >= 0) {
if (ims == null || ims.mBatchEditNesting == 0) {
invalidateCursor();
} else {
ims.mCursorChanged = true;
}
}
}
if (what instanceof ParcelableSpan) {
// If this is a span that can be sent to a remote process,
// the current extract editor would be interested in it.
if (ims != null && ims.mExtractedTextRequest != null) {
if (ims.mBatchEditNesting != 0) {
if (oldStart >= 0) {
if (ims.mChangedStart > oldStart) {
ims.mChangedStart = oldStart;
}
if (ims.mChangedStart > oldEnd) {
ims.mChangedStart = oldEnd;
}
}
if (newStart >= 0) {
if (ims.mChangedStart > newStart) {
ims.mChangedStart = newStart;
}
if (ims.mChangedStart > newEnd) {
ims.mChangedStart = newEnd;
}
}
} else {
if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Span change outside of batch: "
+ oldStart + "-" + oldEnd + ","
+ newStart + "-" + newEnd + " " + what);
ims.mContentChanged = true;
}
}
}
if (mEditor != null && mEditor.mSpellChecker != null && newStart < 0 &&
what instanceof SpellCheckSpan) {
mEditor.mSpellChecker.onSpellCheckSpanRemoved((SpellCheckSpan) what);
}
}
/**
* @hide
*/
@Override
public void dispatchFinishTemporaryDetach() {
mDispatchTemporaryDetach = true;
super.dispatchFinishTemporaryDetach();
mDispatchTemporaryDetach = false;
}
@Override
public void onStartTemporaryDetach() {
super.onStartTemporaryDetach();
// Only track when onStartTemporaryDetach() is called directly,
// usually because this instance is an editable field in a list
if (!mDispatchTemporaryDetach) mTemporaryDetach = true;
// Tell the editor that we are temporarily detached. It can use this to preserve
// selection state as needed.
if (mEditor != null) mEditor.mTemporaryDetach = true;
}
@Override
public void onFinishTemporaryDetach() {
super.onFinishTemporaryDetach();
// Only track when onStartTemporaryDetach() is called directly,
// usually because this instance is an editable field in a list
if (!mDispatchTemporaryDetach) mTemporaryDetach = false;
if (mEditor != null) mEditor.mTemporaryDetach = false;
}
@Override
protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) {
if (mTemporaryDetach) {
// If we are temporarily in the detach state, then do nothing.
super.onFocusChanged(focused, direction, previouslyFocusedRect);
return;
}
if (mEditor != null) mEditor.onFocusChanged(focused, direction);
if (focused) {
if (mText instanceof Spannable) {
Spannable sp = (Spannable) mText;
MetaKeyKeyListener.resetMetaState(sp);
}
}
startStopMarquee(focused);
if (mTransformation != null) {
mTransformation.onFocusChanged(this, mText, focused, direction, previouslyFocusedRect);
}
super.onFocusChanged(focused, direction, previouslyFocusedRect);
}
@Override
public void onWindowFocusChanged(boolean hasWindowFocus) {
super.onWindowFocusChanged(hasWindowFocus);
if (mEditor != null) mEditor.onWindowFocusChanged(hasWindowFocus);
startStopMarquee(hasWindowFocus);
}
@Override
protected void onVisibilityChanged(View changedView, int visibility) {
super.onVisibilityChanged(changedView, visibility);
if (mEditor != null && visibility != VISIBLE) {
mEditor.hideControllers();
}
}
/**
* Use {@link BaseInputConnection#removeComposingSpans
* BaseInputConnection.removeComposingSpans()} to remove any IME composing
* state from this text view.
*/
public void clearComposingText() {
if (mText instanceof Spannable) {
BaseInputConnection.removeComposingSpans((Spannable)mText);
}
}
@Override
public void setSelected(boolean selected) {
boolean wasSelected = isSelected();
super.setSelected(selected);
if (selected != wasSelected && mEllipsize == TextUtils.TruncateAt.MARQUEE) {
if (selected) {
startMarquee();
} else {
stopMarquee();
}
}
}
@Override
public boolean onTouchEvent(MotionEvent event) {
final int action = event.getActionMasked();
if (mEditor != null) {
mEditor.onTouchEvent(event);
if (mEditor.mSelectionModifierCursorController != null &&
mEditor.mSelectionModifierCursorController.isDragAcceleratorActive()) {
return true;
}
}
final boolean superResult = super.onTouchEvent(event);
/*
* Don't handle the release after a long press, because it will
* move the selection away from whatever the menu action was
* trying to affect.
*/
if (mEditor != null && mEditor.mDiscardNextActionUp && action == MotionEvent.ACTION_UP) {
mEditor.mDiscardNextActionUp = false;
return superResult;
}
final boolean touchIsFinished = (action == MotionEvent.ACTION_UP) &&
(mEditor == null || !mEditor.mIgnoreActionUpEvent) && isFocused();
if ((mMovement != null || onCheckIsTextEditor()) && isEnabled()
&& mText instanceof Spannable && mLayout != null) {
boolean handled = false;
if (mMovement != null) {
handled |= mMovement.onTouchEvent(this, (Spannable) mText, event);
}
final boolean textIsSelectable = isTextSelectable();
if (touchIsFinished && mLinksClickable && mAutoLinkMask != 0 && textIsSelectable) {
// The LinkMovementMethod which should handle taps on links has not been installed
// on non editable text that support text selection.
// We reproduce its behavior here to open links for these.
ClickableSpan[] links = ((Spannable) mText).getSpans(getSelectionStart(),
getSelectionEnd(), ClickableSpan.class);
if (links.length > 0) {
links[0].onClick(this);
handled = true;
}
}
if (touchIsFinished && (isTextEditable() || textIsSelectable)) {
// Show the IME, except when selecting in read-only text.
final InputMethodManager imm = InputMethodManager.peekInstance();
viewClicked(imm);
if (!textIsSelectable && mEditor.mShowSoftInputOnFocus) {
handled |= imm != null && imm.showSoftInput(this, 0);
}
// The above condition ensures that the mEditor is not null
mEditor.onTouchUpEvent(event);
handled = true;
}
if (handled) {
return true;
}
}
return superResult;
}
@Override
public boolean onGenericMotionEvent(MotionEvent event) {
if (mMovement != null && mText instanceof Spannable && mLayout != null) {
try {
if (mMovement.onGenericMotionEvent(this, (Spannable) mText, event)) {
return true;
}
} catch (AbstractMethodError ex) {
// onGenericMotionEvent was added to the MovementMethod interface in API 12.
// Ignore its absence in case third party applications implemented the
// interface directly.
}
}
return super.onGenericMotionEvent(event);
}
/**
* @return True iff this TextView contains a text that can be edited, or if this is
* a selectable TextView.
*/
boolean isTextEditable() {
return mText instanceof Editable && onCheckIsTextEditor() && isEnabled();
}
/**
* Returns true, only while processing a touch gesture, if the initial
* touch down event caused focus to move to the text view and as a result
* its selection changed. Only valid while processing the touch gesture
* of interest, in an editable text view.
*/
public boolean didTouchFocusSelect() {
return mEditor != null && mEditor.mTouchFocusSelected;
}
@Override
public void cancelLongPress() {
super.cancelLongPress();
if (mEditor != null) mEditor.mIgnoreActionUpEvent = true;
}
@Override
public boolean onTrackballEvent(MotionEvent event) {
if (mMovement != null && mText instanceof Spannable && mLayout != null) {
if (mMovement.onTrackballEvent(this, (Spannable) mText, event)) {
return true;
}
}
return super.onTrackballEvent(event);
}
public void setScroller(Scroller s) {
mScroller = s;
}
@Override
protected float getLeftFadingEdgeStrength() {
if (mEllipsize == TextUtils.TruncateAt.MARQUEE &&
mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) {
if (mMarquee != null && !mMarquee.isStopped()) {
final Marquee marquee = mMarquee;
if (marquee.shouldDrawLeftFade()) {
final float scroll = marquee.getScroll();
return scroll / getHorizontalFadingEdgeLength();
} else {
return 0.0f;
}
} else if (getLineCount() == 1) {
final int layoutDirection = getLayoutDirection();
final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection);
switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
case Gravity.LEFT:
return 0.0f;
case Gravity.RIGHT:
return (mLayout.getLineRight(0) - (mRight - mLeft) -
getCompoundPaddingLeft() - getCompoundPaddingRight() -
mLayout.getLineLeft(0)) / getHorizontalFadingEdgeLength();
case Gravity.CENTER_HORIZONTAL:
case Gravity.FILL_HORIZONTAL:
final int textDirection = mLayout.getParagraphDirection(0);
if (textDirection == Layout.DIR_LEFT_TO_RIGHT) {
return 0.0f;
} else {
return (mLayout.getLineRight(0) - (mRight - mLeft) -
getCompoundPaddingLeft() - getCompoundPaddingRight() -
mLayout.getLineLeft(0)) / getHorizontalFadingEdgeLength();
}
}
}
}
return super.getLeftFadingEdgeStrength();
}
@Override
protected float getRightFadingEdgeStrength() {
if (mEllipsize == TextUtils.TruncateAt.MARQUEE &&
mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) {
if (mMarquee != null && !mMarquee.isStopped()) {
final Marquee marquee = mMarquee;
final float maxFadeScroll = marquee.getMaxFadeScroll();
final float scroll = marquee.getScroll();
return (maxFadeScroll - scroll) / getHorizontalFadingEdgeLength();
} else if (getLineCount() == 1) {
final int layoutDirection = getLayoutDirection();
final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection);
switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
case Gravity.LEFT:
final int textWidth = (mRight - mLeft) - getCompoundPaddingLeft() -
getCompoundPaddingRight();
final float lineWidth = mLayout.getLineWidth(0);
return (lineWidth - textWidth) / getHorizontalFadingEdgeLength();
case Gravity.RIGHT:
return 0.0f;
case Gravity.CENTER_HORIZONTAL:
case Gravity.FILL_HORIZONTAL:
final int textDirection = mLayout.getParagraphDirection(0);
if (textDirection == Layout.DIR_RIGHT_TO_LEFT) {
return 0.0f;
} else {
return (mLayout.getLineWidth(0) - ((mRight - mLeft) -
getCompoundPaddingLeft() - getCompoundPaddingRight())) /
getHorizontalFadingEdgeLength();
}
}
}
}
return super.getRightFadingEdgeStrength();
}
@Override
protected int computeHorizontalScrollRange() {
if (mLayout != null) {
return mSingleLine && (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.LEFT ?
(int) mLayout.getLineWidth(0) : mLayout.getWidth();
}
return super.computeHorizontalScrollRange();
}
@Override
protected int computeVerticalScrollRange() {
if (mLayout != null)
return mLayout.getHeight();
return super.computeVerticalScrollRange();
}
@Override
protected int computeVerticalScrollExtent() {
return getHeight() - getCompoundPaddingTop() - getCompoundPaddingBottom();
}
@Override
public void findViewsWithText(ArrayList<View> outViews, CharSequence searched, int flags) {
super.findViewsWithText(outViews, searched, flags);
if (!outViews.contains(this) && (flags & FIND_VIEWS_WITH_TEXT) != 0
&& !TextUtils.isEmpty(searched) && !TextUtils.isEmpty(mText)) {
String searchedLowerCase = searched.toString().toLowerCase();
String textLowerCase = mText.toString().toLowerCase();
if (textLowerCase.contains(searchedLowerCase)) {
outViews.add(this);
}
}
}
public enum BufferType {
NORMAL, SPANNABLE, EDITABLE,
}
/**
* Returns the TextView_textColor attribute from the TypedArray, if set, or
* the TextAppearance_textColor from the TextView_textAppearance attribute,
* if TextView_textColor was not set directly.
*
* @removed
*/
public static ColorStateList getTextColors(Context context, TypedArray attrs) {
if (attrs == null) {
// Preserve behavior prior to removal of this API.
throw new NullPointerException();
}
// It's not safe to use this method from apps. The parameter 'attrs'
// must have been obtained using the TextView filter array which is not
// available to the SDK. As such, we grab a default TypedArray with the
// right filter instead here.
final TypedArray a = context.obtainStyledAttributes(R.styleable.TextView);
ColorStateList colors = a.getColorStateList(R.styleable.TextView_textColor);
if (colors == null) {
final int ap = a.getResourceId(R.styleable.TextView_textAppearance, 0);
if (ap != 0) {
final TypedArray appearance = context.obtainStyledAttributes(
ap, R.styleable.TextAppearance);
colors = appearance.getColorStateList(R.styleable.TextAppearance_textColor);
appearance.recycle();
}
}
a.recycle();
return colors;
}
/**
* Returns the default color from the TextView_textColor attribute from the
* AttributeSet, if set, or the default color from the
* TextAppearance_textColor from the TextView_textAppearance attribute, if
* TextView_textColor was not set directly.
*
* @removed
*/
public static int getTextColor(Context context, TypedArray attrs, int def) {
final ColorStateList colors = getTextColors(context, attrs);
if (colors == null) {
return def;
} else {
return colors.getDefaultColor();
}
}
@Override
public boolean onKeyShortcut(int keyCode, KeyEvent event) {
if (event.hasModifiers(KeyEvent.META_CTRL_ON)) {
// Handle Ctrl-only shortcuts.
switch (keyCode) {
case KeyEvent.KEYCODE_A:
if (canSelectText()) {
return onTextContextMenuItem(ID_SELECT_ALL);
}
break;
case KeyEvent.KEYCODE_Z:
if (canUndo()) {
return onTextContextMenuItem(ID_UNDO);
}
break;
case KeyEvent.KEYCODE_X:
if (canCut()) {
return onTextContextMenuItem(ID_CUT);
}
break;
case KeyEvent.KEYCODE_C:
if (canCopy()) {
return onTextContextMenuItem(ID_COPY);
}
break;
case KeyEvent.KEYCODE_V:
if (canPaste()) {
return onTextContextMenuItem(ID_PASTE);
}
break;
}
} else if (event.hasModifiers(KeyEvent.META_CTRL_ON | KeyEvent.META_SHIFT_ON)) {
// Handle Ctrl-Shift shortcuts.
switch (keyCode) {
case KeyEvent.KEYCODE_Z:
if (canRedo()) {
return onTextContextMenuItem(ID_REDO);
}
break;
case KeyEvent.KEYCODE_V:
if (canPaste()) {
return onTextContextMenuItem(ID_PASTE_AS_PLAIN_TEXT);
}
}
}
return super.onKeyShortcut(keyCode, event);
}
/**
* Unlike {@link #textCanBeSelected()}, this method is based on the <i>current</i> state of the
* TextView. {@link #textCanBeSelected()} has to be true (this is one of the conditions to have
* a selection controller (see {@link Editor#prepareCursorControllers()}), but this is not
* sufficient.
*/
private boolean canSelectText() {
return mText.length() != 0 && mEditor != null && mEditor.hasSelectionController();
}
/**
* Test based on the <i>intrinsic</i> charateristics of the TextView.
* The text must be spannable and the movement method must allow for arbitary selection.
*
* See also {@link #canSelectText()}.
*/
boolean textCanBeSelected() {
// prepareCursorController() relies on this method.
// If you change this condition, make sure prepareCursorController is called anywhere
// the value of this condition might be changed.
if (mMovement == null || !mMovement.canSelectArbitrarily()) return false;
return isTextEditable() ||
(isTextSelectable() && mText instanceof Spannable && isEnabled());
}
private Locale getTextServicesLocale(boolean allowNullLocale) {
// Start fetching the text services locale asynchronously.
updateTextServicesLocaleAsync();
// If !allowNullLocale and there is no cached text services locale, just return the default
// locale.
return (mCurrentSpellCheckerLocaleCache == null && !allowNullLocale) ? Locale.getDefault()
: mCurrentSpellCheckerLocaleCache;
}
/**
* This is a temporary method. Future versions may support multi-locale text.
* Caveat: This method may not return the latest text services locale, but this should be
* acceptable and it's more important to make this method asynchronous.
*
* @return The locale that should be used for a word iterator
* in this TextView, based on the current spell checker settings,
* the current IME's locale, or the system default locale.
* Please note that a word iterator in this TextView is different from another word iterator
* used by SpellChecker.java of TextView. This method should be used for the former.
* @hide
*/
// TODO: Support multi-locale
// TODO: Update the text services locale immediately after the keyboard locale is switched
// by catching intent of keyboard switch event
public Locale getTextServicesLocale() {
return getTextServicesLocale(false /* allowNullLocale */);
}
/**
* This is a temporary method. Future versions may support multi-locale text.
* Caveat: This method may not return the latest spell checker locale, but this should be
* acceptable and it's more important to make this method asynchronous.
*
* @return The locale that should be used for a spell checker in this TextView,
* based on the current spell checker settings, the current IME's locale, or the system default
* locale.
* @hide
*/
public Locale getSpellCheckerLocale() {
return getTextServicesLocale(true /* allowNullLocale */);
}
private void updateTextServicesLocaleAsync() {
// AsyncTask.execute() uses a serial executor which means we don't have
// to lock around updateTextServicesLocaleLocked() to prevent it from
// being executed n times in parallel.
AsyncTask.execute(new Runnable() {
@Override
public void run() {
updateTextServicesLocaleLocked();
}
});
}
private void updateTextServicesLocaleLocked() {
final TextServicesManager textServicesManager = (TextServicesManager)
mContext.getSystemService(Context.TEXT_SERVICES_MANAGER_SERVICE);
final SpellCheckerSubtype subtype = textServicesManager.getCurrentSpellCheckerSubtype(true);
final Locale locale;
if (subtype != null) {
locale = SpellCheckerSubtype.constructLocaleFromString(subtype.getLocale());
} else {
locale = null;
}
mCurrentSpellCheckerLocaleCache = locale;
}
void onLocaleChanged() {
// Will be re-created on demand in getWordIterator with the proper new locale
mEditor.mWordIterator = null;
}
/**
* This method is used by the ArrowKeyMovementMethod to jump from one word to the other.
* Made available to achieve a consistent behavior.
* @hide
*/
public WordIterator getWordIterator() {
if (mEditor != null) {
return mEditor.getWordIterator();
} else {
return null;
}
}
/** @hide */
@Override
public void onPopulateAccessibilityEventInternal(AccessibilityEvent event) {
super.onPopulateAccessibilityEventInternal(event);
final boolean isPassword = hasPasswordTransformationMethod();
if (!isPassword || shouldSpeakPasswordsForAccessibility()) {
final CharSequence text = getTextForAccessibility();
if (!TextUtils.isEmpty(text)) {
event.getText().add(text);
}
}
}
/**
* @return true if the user has explicitly allowed accessibility services
* to speak passwords.
*/
private boolean shouldSpeakPasswordsForAccessibility() {
return (Settings.Secure.getIntForUser(mContext.getContentResolver(),
Settings.Secure.ACCESSIBILITY_SPEAK_PASSWORD, 0,
UserHandle.USER_CURRENT_OR_SELF) == 1);
}
@Override
public CharSequence getAccessibilityClassName() {
return TextView.class.getName();
}
@Override
public void onProvideAssistStructure(ViewAssistStructure structure) {
super.onProvideAssistStructure(structure);
final boolean isPassword = hasPasswordTransformationMethod();
if (!isPassword) {
structure.setText(getText(), getSelectionStart(), getSelectionEnd());
structure.setTextPaint(mTextPaint);
}
structure.setHint(getHint());
}
/** @hide */
@Override
public void onInitializeAccessibilityEventInternal(AccessibilityEvent event) {
super.onInitializeAccessibilityEventInternal(event);
final boolean isPassword = hasPasswordTransformationMethod();
event.setPassword(isPassword);
if (event.getEventType() == AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED) {
event.setFromIndex(Selection.getSelectionStart(mText));
event.setToIndex(Selection.getSelectionEnd(mText));
event.setItemCount(mText.length());
}
}
/** @hide */
@Override
public void onInitializeAccessibilityNodeInfoInternal(AccessibilityNodeInfo info) {
super.onInitializeAccessibilityNodeInfoInternal(info);
final boolean isPassword = hasPasswordTransformationMethod();
info.setPassword(isPassword);
if (!isPassword || shouldSpeakPasswordsForAccessibility()) {
info.setText(getTextForAccessibility());
}
if (mBufferType == BufferType.EDITABLE) {
info.setEditable(true);
}
if (mEditor != null) {
info.setInputType(mEditor.mInputType);
if (mEditor.mError != null) {
info.setContentInvalid(true);
info.setError(mEditor.mError);
}
}
if (!TextUtils.isEmpty(mText)) {
info.addAction(AccessibilityNodeInfo.ACTION_NEXT_AT_MOVEMENT_GRANULARITY);
info.addAction(AccessibilityNodeInfo.ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY);
info.setMovementGranularities(AccessibilityNodeInfo.MOVEMENT_GRANULARITY_CHARACTER
| AccessibilityNodeInfo.MOVEMENT_GRANULARITY_WORD
| AccessibilityNodeInfo.MOVEMENT_GRANULARITY_LINE
| AccessibilityNodeInfo.MOVEMENT_GRANULARITY_PARAGRAPH
| AccessibilityNodeInfo.MOVEMENT_GRANULARITY_PAGE);
}
if (isFocused()) {
if (canSelectText()) {
info.addAction(AccessibilityNodeInfo.ACTION_SET_SELECTION);
}
if (canCopy()) {
info.addAction(AccessibilityNodeInfo.ACTION_COPY);
}
if (canPaste()) {
info.addAction(AccessibilityNodeInfo.ACTION_PASTE);
}
if (canCut()) {
info.addAction(AccessibilityNodeInfo.ACTION_CUT);
}
}
// Check for known input filter types.
final int numFilters = mFilters.length;
for (int i = 0; i < numFilters; i++) {
final InputFilter filter = mFilters[i];
if (filter instanceof InputFilter.LengthFilter) {
info.setMaxTextLength(((InputFilter.LengthFilter) filter).getMax());
}
}
if (!isSingleLine()) {
info.setMultiLine(true);
}
}
/**
* Performs an accessibility action after it has been offered to the
* delegate.
*
* @hide
*/
@Override
public boolean performAccessibilityActionInternal(int action, Bundle arguments) {
switch (action) {
case AccessibilityNodeInfo.ACTION_CLICK: {
boolean handled = false;
// Simulate View.onTouchEvent for an ACTION_UP event.
if (isClickable() || isLongClickable()) {
if (isFocusable() && !isFocused()) {
requestFocus();
}
performClick();
handled = true;
}
// Simulate TextView.onTouchEvent for an ACTION_UP event.
if ((mMovement != null || onCheckIsTextEditor()) && isEnabled()
&& mText instanceof Spannable && mLayout != null
&& (isTextEditable() || isTextSelectable()) && isFocused()) {
// Show the IME, except when selecting in read-only text.
final InputMethodManager imm = InputMethodManager.peekInstance();
viewClicked(imm);
if (!isTextSelectable() && mEditor.mShowSoftInputOnFocus && imm != null) {
handled |= imm.showSoftInput(this, 0);
}
}
return handled;
}
case AccessibilityNodeInfo.ACTION_COPY: {
if (isFocused() && canCopy()) {
if (onTextContextMenuItem(ID_COPY)) {
return true;
}
}
} return false;
case AccessibilityNodeInfo.ACTION_PASTE: {
if (isFocused() && canPaste()) {
if (onTextContextMenuItem(ID_PASTE)) {
return true;
}
}
} return false;
case AccessibilityNodeInfo.ACTION_CUT: {
if (isFocused() && canCut()) {
if (onTextContextMenuItem(ID_CUT)) {
return true;
}
}
} return false;
case AccessibilityNodeInfo.ACTION_SET_SELECTION: {
if (isFocused() && canSelectText()) {
ensureIterableTextForAccessibilitySelectable();
CharSequence text = getIterableTextForAccessibility();
if (text == null) {
return false;
}
final int start = (arguments != null) ? arguments.getInt(
AccessibilityNodeInfo.ACTION_ARGUMENT_SELECTION_START_INT, -1) : -1;
final int end = (arguments != null) ? arguments.getInt(
AccessibilityNodeInfo.ACTION_ARGUMENT_SELECTION_END_INT, -1) : -1;
if ((getSelectionStart() != start || getSelectionEnd() != end)) {
// No arguments clears the selection.
if (start == end && end == -1) {
Selection.removeSelection((Spannable) text);
return true;
}
if (start >= 0 && start <= end && end <= text.length()) {
Selection.setSelection((Spannable) text, start, end);
// Make sure selection mode is engaged.
if (mEditor != null) {
mEditor.startSelectionActionModeWithSelection();
}
return true;
}
}
}
} return false;
case AccessibilityNodeInfo.ACTION_NEXT_AT_MOVEMENT_GRANULARITY:
case AccessibilityNodeInfo.ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY: {
ensureIterableTextForAccessibilitySelectable();
return super.performAccessibilityActionInternal(action, arguments);
}
default: {
return super.performAccessibilityActionInternal(action, arguments);
}
}
}
/** @hide */
@Override
public void sendAccessibilityEventInternal(int eventType) {
// Do not send scroll events since first they are not interesting for
// accessibility and second such events a generated too frequently.
// For details see the implementation of bringTextIntoView().
if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) {
return;
}
super.sendAccessibilityEventInternal(eventType);
}
/**
* Gets the text reported for accessibility purposes.
*
* @return The accessibility text.
*
* @hide
*/
public CharSequence getTextForAccessibility() {
CharSequence text = getText();
if (TextUtils.isEmpty(text)) {
text = getHint();
}
return text;
}
void sendAccessibilityEventTypeViewTextChanged(CharSequence beforeText,
int fromIndex, int removedCount, int addedCount) {
AccessibilityEvent event =
AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED);
event.setFromIndex(fromIndex);
event.setRemovedCount(removedCount);
event.setAddedCount(addedCount);
event.setBeforeText(beforeText);
sendAccessibilityEventUnchecked(event);
}
/**
* Returns whether this text view is a current input method target. The
* default implementation just checks with {@link InputMethodManager}.
*/
public boolean isInputMethodTarget() {
InputMethodManager imm = InputMethodManager.peekInstance();
return imm != null && imm.isActive(this);
}
static final int ID_SELECT_ALL = android.R.id.selectAll;
static final int ID_UNDO = android.R.id.undo;
static final int ID_REDO = android.R.id.redo;
static final int ID_CUT = android.R.id.cut;
static final int ID_COPY = android.R.id.copy;
static final int ID_PASTE = android.R.id.paste;
static final int ID_PASTE_AS_PLAIN_TEXT = android.R.id.pasteAsPlainText;
static final int ID_REPLACE = android.R.id.replaceText;
/**
* Called when a context menu option for the text view is selected. Currently
* this will be one of {@link android.R.id#selectAll}, {@link android.R.id#cut},
* {@link android.R.id#copy} or {@link android.R.id#paste}.
*
* @return true if the context menu item action was performed.
*/
public boolean onTextContextMenuItem(int id) {
int min = 0;
int max = mText.length();
if (isFocused()) {
final int selStart = getSelectionStart();
final int selEnd = getSelectionEnd();
min = Math.max(0, Math.min(selStart, selEnd));
max = Math.max(0, Math.max(selStart, selEnd));
}
switch (id) {
case ID_SELECT_ALL:
// This does not enter text selection mode. Text is highlighted, so that it can be
// bulk edited, like selectAllOnFocus does. Returns true even if text is empty.
selectAllText();
return true;
case ID_UNDO:
if (mEditor != null) {
mEditor.undo();
}
return true; // Returns true even if nothing was undone.
case ID_REDO:
if (mEditor != null) {
mEditor.redo();
}
return true; // Returns true even if nothing was undone.
case ID_PASTE:
paste(min, max, true /* withFormatting */);
return true;
case ID_PASTE_AS_PLAIN_TEXT:
paste(min, max, false /* withFormatting */);
return true;
case ID_CUT:
setPrimaryClip(ClipData.newPlainText(null, getTransformedText(min, max)));
deleteText_internal(min, max);
stopSelectionActionMode();
return true;
case ID_COPY:
setPrimaryClip(ClipData.newPlainText(null, getTransformedText(min, max)));
stopSelectionActionMode();
return true;
}
return false;
}
CharSequence getTransformedText(int start, int end) {
return removeSuggestionSpans(mTransformed.subSequence(start, end));
}
@Override
public boolean performLongClick() {
boolean handled = false;
if (super.performLongClick()) {
handled = true;
}
if (mEditor != null) {
handled |= mEditor.performLongClick(handled);
}
if (handled) {
performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
if (mEditor != null) mEditor.mDiscardNextActionUp = true;
}
return handled;
}
@Override
protected void onScrollChanged(int horiz, int vert, int oldHoriz, int oldVert) {
super.onScrollChanged(horiz, vert, oldHoriz, oldVert);
if (mEditor != null) {
mEditor.onScrollChanged();
}
}
/**
* Return whether or not suggestions are enabled on this TextView. The suggestions are generated
* by the IME or by the spell checker as the user types. This is done by adding
* {@link SuggestionSpan}s to the text.
*
* When suggestions are enabled (default), this list of suggestions will be displayed when the
* user asks for them on these parts of the text. This value depends on the inputType of this
* TextView.
*
* The class of the input type must be {@link InputType#TYPE_CLASS_TEXT}.
*
* In addition, the type variation must be one of
* {@link InputType#TYPE_TEXT_VARIATION_NORMAL},
* {@link InputType#TYPE_TEXT_VARIATION_EMAIL_SUBJECT},
* {@link InputType#TYPE_TEXT_VARIATION_LONG_MESSAGE},
* {@link InputType#TYPE_TEXT_VARIATION_SHORT_MESSAGE} or
* {@link InputType#TYPE_TEXT_VARIATION_WEB_EDIT_TEXT}.
*
* And finally, the {@link InputType#TYPE_TEXT_FLAG_NO_SUGGESTIONS} flag must <i>not</i> be set.
*
* @return true if the suggestions popup window is enabled, based on the inputType.
*/
public boolean isSuggestionsEnabled() {
if (mEditor == null) return false;
if ((mEditor.mInputType & InputType.TYPE_MASK_CLASS) != InputType.TYPE_CLASS_TEXT) {
return false;
}
if ((mEditor.mInputType & InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS) > 0) return false;
final int variation = mEditor.mInputType & EditorInfo.TYPE_MASK_VARIATION;
return (variation == EditorInfo.TYPE_TEXT_VARIATION_NORMAL ||
variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT ||
variation == EditorInfo.TYPE_TEXT_VARIATION_LONG_MESSAGE ||
variation == EditorInfo.TYPE_TEXT_VARIATION_SHORT_MESSAGE ||
variation == EditorInfo.TYPE_TEXT_VARIATION_WEB_EDIT_TEXT);
}
/**
* If provided, this ActionMode.Callback will be used to create the ActionMode when text
* selection is initiated in this View.
*
* The standard implementation populates the menu with a subset of Select All, Cut, Copy and
* Paste actions, depending on what this View supports.
*
* A custom implementation can add new entries in the default menu in its
* {@link android.view.ActionMode.Callback#onPrepareActionMode(ActionMode, Menu)} method. The
* default actions can also be removed from the menu using
* {@link android.view.Menu#removeItem(int)} and passing {@link android.R.id#selectAll},
* {@link android.R.id#cut}, {@link android.R.id#copy} or {@link android.R.id#paste} ids as
* parameters.
*
* Returning false from
* {@link android.view.ActionMode.Callback#onCreateActionMode(ActionMode, Menu)} will prevent
* the action mode from being started.
*
* Action click events should be handled by the custom implementation of
* {@link android.view.ActionMode.Callback#onActionItemClicked(ActionMode, MenuItem)}.
*
* Note that text selection mode is not started when a TextView receives focus and the
* {@link android.R.attr#selectAllOnFocus} flag has been set. The content is highlighted in
* that case, to allow for quick replacement.
*/
public void setCustomSelectionActionModeCallback(ActionMode.Callback actionModeCallback) {
createEditorIfNeeded();
mEditor.mCustomSelectionActionModeCallback = actionModeCallback;
}
/**
* Retrieves the value set in {@link #setCustomSelectionActionModeCallback}. Default is null.
*
* @return The current custom selection callback.
*/
public ActionMode.Callback getCustomSelectionActionModeCallback() {
return mEditor == null ? null : mEditor.mCustomSelectionActionModeCallback;
}
/**
* @hide
*/
protected void stopSelectionActionMode() {
if (mEditor != null) {
mEditor.stopSelectionActionMode();
}
}
boolean canUndo() {
return mEditor != null && mEditor.canUndo();
}
boolean canRedo() {
return mEditor != null && mEditor.canRedo();
}
boolean canCut() {
if (hasPasswordTransformationMethod()) {
return false;
}
if (mText.length() > 0 && hasSelection() && mText instanceof Editable && mEditor != null &&
mEditor.mKeyListener != null) {
return true;
}
return false;
}
boolean canCopy() {
if (hasPasswordTransformationMethod()) {
return false;
}
if (mText.length() > 0 && hasSelection() && mEditor != null) {
return true;
}
return false;
}
boolean canPaste() {
return (mText instanceof Editable &&
mEditor != null && mEditor.mKeyListener != null &&
getSelectionStart() >= 0 &&
getSelectionEnd() >= 0 &&
((ClipboardManager)getContext().getSystemService(Context.CLIPBOARD_SERVICE)).
hasPrimaryClip());
}
boolean canProcessText() {
if (!getContext().canStartActivityForResult() || getId() == View.NO_ID
|| hasPasswordTransformationMethod()) {
return false;
}
if (mText.length() > 0 && hasSelection() && mEditor != null) {
return true;
}
return false;
}
boolean selectAllText() {
// Need to hide insert point cursor controller before settings selection, otherwise insert
// point cursor controller obtains cursor update event and update cursor with cancelling
// selection.
if (mEditor != null) {
mEditor.hideInsertionPointCursorController();
}
final int length = mText.length();
Selection.setSelection((Spannable) mText, 0, length);
return length > 0;
}
void replaceSelectionWithText(CharSequence text) {
((Editable) mText).replace(getSelectionStart(), getSelectionEnd(), text);
}
/**
* Paste clipboard content between min and max positions.
*/
private void paste(int min, int max, boolean withFormatting) {
ClipboardManager clipboard =
(ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE);
ClipData clip = clipboard.getPrimaryClip();
if (clip != null) {
boolean didFirst = false;
for (int i=0; i<clip.getItemCount(); i++) {
final CharSequence paste;
if (withFormatting) {
paste = clip.getItemAt(i).coerceToStyledText(getContext());
} else {
// Get an item as text and remove all spans by toString().
final CharSequence text = clip.getItemAt(i).coerceToText(getContext());
paste = (text instanceof Spanned) ? text.toString() : text;
}
if (paste != null) {
if (!didFirst) {
Selection.setSelection((Spannable) mText, max);
((Editable) mText).replace(min, max, paste);
didFirst = true;
} else {
((Editable) mText).insert(getSelectionEnd(), "\n");
((Editable) mText).insert(getSelectionEnd(), paste);
}
}
}
stopSelectionActionMode();
LAST_CUT_OR_COPY_TIME = 0;
}
}
private void setPrimaryClip(ClipData clip) {
ClipboardManager clipboard = (ClipboardManager) getContext().
getSystemService(Context.CLIPBOARD_SERVICE);
clipboard.setPrimaryClip(clip);
LAST_CUT_OR_COPY_TIME = SystemClock.uptimeMillis();
}
/**
* Get the character offset closest to the specified absolute position. A typical use case is to
* pass the result of {@link MotionEvent#getX()} and {@link MotionEvent#getY()} to this method.
*
* @param x The horizontal absolute position of a point on screen
* @param y The vertical absolute position of a point on screen
* @return the character offset for the character whose position is closest to the specified
* position. Returns -1 if there is no layout.
*/
public int getOffsetForPosition(float x, float y) {
if (getLayout() == null) return -1;
final int line = getLineAtCoordinate(y);
final int offset = getOffsetAtCoordinate(line, x);
return offset;
}
float convertToLocalHorizontalCoordinate(float x) {
x -= getTotalPaddingLeft();
// Clamp the position to inside of the view.
x = Math.max(0.0f, x);
x = Math.min(getWidth() - getTotalPaddingRight() - 1, x);
x += getScrollX();
return x;
}
int getLineAtCoordinate(float y) {
y -= getTotalPaddingTop();
// Clamp the position to inside of the view.
y = Math.max(0.0f, y);
y = Math.min(getHeight() - getTotalPaddingBottom() - 1, y);
y += getScrollY();
return getLayout().getLineForVertical((int) y);
}
int getOffsetAtCoordinate(int line, float x) {
x = convertToLocalHorizontalCoordinate(x);
return getLayout().getOffsetForHorizontal(line, x);
}
@Override
public boolean onDragEvent(DragEvent event) {
switch (event.getAction()) {
case DragEvent.ACTION_DRAG_STARTED:
return mEditor != null && mEditor.hasInsertionController();
case DragEvent.ACTION_DRAG_ENTERED:
TextView.this.requestFocus();
return true;
case DragEvent.ACTION_DRAG_LOCATION:
final int offset = getOffsetForPosition(event.getX(), event.getY());
Selection.setSelection((Spannable)mText, offset);
return true;
case DragEvent.ACTION_DROP:
if (mEditor != null) mEditor.onDrop(event);
return true;
case DragEvent.ACTION_DRAG_ENDED:
case DragEvent.ACTION_DRAG_EXITED:
default:
return true;
}
}
boolean isInBatchEditMode() {
if (mEditor == null) return false;
final Editor.InputMethodState ims = mEditor.mInputMethodState;
if (ims != null) {
return ims.mBatchEditNesting > 0;
}
return mEditor.mInBatchEditControllers;
}
@Override
public void onRtlPropertiesChanged(int layoutDirection) {
super.onRtlPropertiesChanged(layoutDirection);
mTextDir = getTextDirectionHeuristic();
if (mLayout != null) {
checkForRelayout();
}
}
TextDirectionHeuristic getTextDirectionHeuristic() {
if (hasPasswordTransformationMethod()) {
// passwords fields should be LTR
return TextDirectionHeuristics.LTR;
}
// Always need to resolve layout direction first
final boolean defaultIsRtl = (getLayoutDirection() == LAYOUT_DIRECTION_RTL);
// Now, we can select the heuristic
switch (getTextDirection()) {
default:
case TEXT_DIRECTION_FIRST_STRONG:
return (defaultIsRtl ? TextDirectionHeuristics.FIRSTSTRONG_RTL :
TextDirectionHeuristics.FIRSTSTRONG_LTR);
case TEXT_DIRECTION_ANY_RTL:
return TextDirectionHeuristics.ANYRTL_LTR;
case TEXT_DIRECTION_LTR:
return TextDirectionHeuristics.LTR;
case TEXT_DIRECTION_RTL:
return TextDirectionHeuristics.RTL;
case TEXT_DIRECTION_LOCALE:
return TextDirectionHeuristics.LOCALE;
case TEXT_DIRECTION_FIRST_STRONG_LTR:
return TextDirectionHeuristics.FIRSTSTRONG_LTR;
case TEXT_DIRECTION_FIRST_STRONG_RTL:
return TextDirectionHeuristics.FIRSTSTRONG_RTL;
}
}
/**
* @hide
*/
@Override
public void onResolveDrawables(int layoutDirection) {
// No need to resolve twice
if (mLastLayoutDirection == layoutDirection) {
return;
}
mLastLayoutDirection = layoutDirection;
// Resolve drawables
if (mDrawables != null) {
mDrawables.resolveWithLayoutDirection(layoutDirection);
}
}
/**
* @hide
*/
protected void resetResolvedDrawables() {
super.resetResolvedDrawables();
mLastLayoutDirection = -1;
}
/**
* @hide
*/
protected void viewClicked(InputMethodManager imm) {
if (imm != null) {
imm.viewClicked(this);
}
}
/**
* Deletes the range of text [start, end[.
* @hide
*/
protected void deleteText_internal(int start, int end) {
((Editable) mText).delete(start, end);
}
/**
* Replaces the range of text [start, end[ by replacement text
* @hide
*/
protected void replaceText_internal(int start, int end, CharSequence text) {
((Editable) mText).replace(start, end, text);
}
/**
* Sets a span on the specified range of text
* @hide
*/
protected void setSpan_internal(Object span, int start, int end, int flags) {
((Editable) mText).setSpan(span, start, end, flags);
}
/**
* Moves the cursor to the specified offset position in text
* @hide
*/
protected void setCursorPosition_internal(int start, int end) {
Selection.setSelection(((Editable) mText), start, end);
}
/**
* An Editor should be created as soon as any of the editable-specific fields (grouped
* inside the Editor object) is assigned to a non-default value.
* This method will create the Editor if needed.
*
* A standard TextView (as well as buttons, checkboxes...) should not qualify and hence will
* have a null Editor, unlike an EditText. Inconsistent in-between states will have an
* Editor for backward compatibility, as soon as one of these fields is assigned.
*
* Also note that for performance reasons, the mEditor is created when needed, but not
* reset when no more edit-specific fields are needed.
*/
private void createEditorIfNeeded() {
if (mEditor == null) {
mEditor = new Editor(this);
}
}
/**
* @hide
*/
@Override
public CharSequence getIterableTextForAccessibility() {
return mText;
}
private void ensureIterableTextForAccessibilitySelectable() {
if (!(mText instanceof Spannable)) {
setText(mText, BufferType.SPANNABLE);
}
}
/**
* @hide
*/
@Override
public TextSegmentIterator getIteratorForGranularity(int granularity) {
switch (granularity) {
case AccessibilityNodeInfo.MOVEMENT_GRANULARITY_LINE: {
Spannable text = (Spannable) getIterableTextForAccessibility();
if (!TextUtils.isEmpty(text) && getLayout() != null) {
AccessibilityIterators.LineTextSegmentIterator iterator =
AccessibilityIterators.LineTextSegmentIterator.getInstance();
iterator.initialize(text, getLayout());
return iterator;
}
} break;
case AccessibilityNodeInfo.MOVEMENT_GRANULARITY_PAGE: {
Spannable text = (Spannable) getIterableTextForAccessibility();
if (!TextUtils.isEmpty(text) && getLayout() != null) {
AccessibilityIterators.PageTextSegmentIterator iterator =
AccessibilityIterators.PageTextSegmentIterator.getInstance();
iterator.initialize(this);
return iterator;
}
} break;
}
return super.getIteratorForGranularity(granularity);
}
/**
* @hide
*/
@Override
public int getAccessibilitySelectionStart() {
return getSelectionStart();
}
/**
* @hide
*/
public boolean isAccessibilitySelectionExtendable() {
return true;
}
/**
* @hide
*/
@Override
public int getAccessibilitySelectionEnd() {
return getSelectionEnd();
}
/**
* @hide
*/
@Override
public void setAccessibilitySelection(int start, int end) {
if (getAccessibilitySelectionStart() == start
&& getAccessibilitySelectionEnd() == end) {
return;
}
// Hide all selection controllers used for adjusting selection
// since we are doing so explicitlty by other means and these
// controllers interact with how selection behaves.
if (mEditor != null) {
mEditor.hideControllers();
}
CharSequence text = getIterableTextForAccessibility();
if (Math.min(start, end) >= 0 && Math.max(start, end) <= text.length()) {
Selection.setSelection((Spannable) text, start, end);
} else {
Selection.removeSelection((Spannable) text);
}
}
/**
* User interface state that is stored by TextView for implementing
* {@link View#onSaveInstanceState}.
*/
public static class SavedState extends BaseSavedState {
int selStart;
int selEnd;
CharSequence text;
boolean frozenWithFocus;
CharSequence error;
ParcelableParcel editorState; // Optional state from Editor.
SavedState(Parcelable superState) {
super(superState);
}
@Override
public void writeToParcel(Parcel out, int flags) {
super.writeToParcel(out, flags);
out.writeInt(selStart);
out.writeInt(selEnd);
out.writeInt(frozenWithFocus ? 1 : 0);
TextUtils.writeToParcel(text, out, flags);
if (error == null) {
out.writeInt(0);
} else {
out.writeInt(1);
TextUtils.writeToParcel(error, out, flags);
}
if (editorState == null) {
out.writeInt(0);
} else {
out.writeInt(1);
editorState.writeToParcel(out, flags);
}
}
@Override
public String toString() {
String str = "TextView.SavedState{"
+ Integer.toHexString(System.identityHashCode(this))
+ " start=" + selStart + " end=" + selEnd;
if (text != null) {
str += " text=" + text;
}
return str + "}";
}
@SuppressWarnings("hiding")
public static final Parcelable.Creator<SavedState> CREATOR
= new Parcelable.Creator<SavedState>() {
public SavedState createFromParcel(Parcel in) {
return new SavedState(in);
}
public SavedState[] newArray(int size) {
return new SavedState[size];
}
};
private SavedState(Parcel in) {
super(in);
selStart = in.readInt();
selEnd = in.readInt();
frozenWithFocus = (in.readInt() != 0);
text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in);
if (in.readInt() != 0) {
error = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in);
}
if (in.readInt() != 0) {
editorState = ParcelableParcel.CREATOR.createFromParcel(in);
}
}
}
private static class CharWrapper implements CharSequence, GetChars, GraphicsOperations {
private char[] mChars;
private int mStart, mLength;
public CharWrapper(char[] chars, int start, int len) {
mChars = chars;
mStart = start;
mLength = len;
}
/* package */ void set(char[] chars, int start, int len) {
mChars = chars;
mStart = start;
mLength = len;
}
public int length() {
return mLength;
}
public char charAt(int off) {
return mChars[off + mStart];
}
@Override
public String toString() {
return new String(mChars, mStart, mLength);
}
public CharSequence subSequence(int start, int end) {
if (start < 0 || end < 0 || start > mLength || end > mLength) {
throw new IndexOutOfBoundsException(start + ", " + end);
}
return new String(mChars, start + mStart, end - start);
}
public void getChars(int start, int end, char[] buf, int off) {
if (start < 0 || end < 0 || start > mLength || end > mLength) {
throw new IndexOutOfBoundsException(start + ", " + end);
}
System.arraycopy(mChars, start + mStart, buf, off, end - start);
}
public void drawText(Canvas c, int start, int end,
float x, float y, Paint p) {
c.drawText(mChars, start + mStart, end - start, x, y, p);
}
public void drawTextRun(Canvas c, int start, int end,
int contextStart, int contextEnd, float x, float y, boolean isRtl, Paint p) {
int count = end - start;
int contextCount = contextEnd - contextStart;
c.drawTextRun(mChars, start + mStart, count, contextStart + mStart,
contextCount, x, y, isRtl, p);
}
public float measureText(int start, int end, Paint p) {
return p.measureText(mChars, start + mStart, end - start);
}
public int getTextWidths(int start, int end, float[] widths, Paint p) {
return p.getTextWidths(mChars, start + mStart, end - start, widths);
}
public float getTextRunAdvances(int start, int end, int contextStart,
int contextEnd, boolean isRtl, float[] advances, int advancesIndex,
Paint p) {
int count = end - start;
int contextCount = contextEnd - contextStart;
return p.getTextRunAdvances(mChars, start + mStart, count,
contextStart + mStart, contextCount, isRtl, advances,
advancesIndex);
}
public int getTextRunCursor(int contextStart, int contextEnd, int dir,
int offset, int cursorOpt, Paint p) {
int contextCount = contextEnd - contextStart;
return p.getTextRunCursor(mChars, contextStart + mStart,
contextCount, dir, offset + mStart, cursorOpt);
}
}
private static final class Marquee {
// TODO: Add an option to configure this
private static final float MARQUEE_DELTA_MAX = 0.07f;
private static final int MARQUEE_DELAY = 1200;
private static final int MARQUEE_DP_PER_SECOND = 30;
private static final byte MARQUEE_STOPPED = 0x0;
private static final byte MARQUEE_STARTING = 0x1;
private static final byte MARQUEE_RUNNING = 0x2;
private final WeakReference<TextView> mView;
private final Choreographer mChoreographer;
private byte mStatus = MARQUEE_STOPPED;
private final float mPixelsPerSecond;
private float mMaxScroll;
private float mMaxFadeScroll;
private float mGhostStart;
private float mGhostOffset;
private float mFadeStop;
private int mRepeatLimit;
private float mScroll;
private long mLastAnimationMs;
Marquee(TextView v) {
final float density = v.getContext().getResources().getDisplayMetrics().density;
mPixelsPerSecond = MARQUEE_DP_PER_SECOND * density;
mView = new WeakReference<TextView>(v);
mChoreographer = Choreographer.getInstance();
}
private Choreographer.FrameCallback mTickCallback = new Choreographer.FrameCallback() {
@Override
public void doFrame(long frameTimeNanos) {
tick();
}
};
private Choreographer.FrameCallback mStartCallback = new Choreographer.FrameCallback() {
@Override
public void doFrame(long frameTimeNanos) {
mStatus = MARQUEE_RUNNING;
mLastAnimationMs = mChoreographer.getFrameTime();
tick();
}
};
private Choreographer.FrameCallback mRestartCallback = new Choreographer.FrameCallback() {
@Override
public void doFrame(long frameTimeNanos) {
if (mStatus == MARQUEE_RUNNING) {
if (mRepeatLimit >= 0) {
mRepeatLimit--;
}
start(mRepeatLimit);
}
}
};
void tick() {
if (mStatus != MARQUEE_RUNNING) {
return;
}
mChoreographer.removeFrameCallback(mTickCallback);
final TextView textView = mView.get();
if (textView != null && (textView.isFocused() || textView.isSelected())) {
long currentMs = mChoreographer.getFrameTime();
long deltaMs = currentMs - mLastAnimationMs;
mLastAnimationMs = currentMs;
float deltaPx = deltaMs / 1000f * mPixelsPerSecond;
mScroll += deltaPx;
if (mScroll > mMaxScroll) {
mScroll = mMaxScroll;
mChoreographer.postFrameCallbackDelayed(mRestartCallback, MARQUEE_DELAY);
} else {
mChoreographer.postFrameCallback(mTickCallback);
}
textView.invalidate();
}
}
void stop() {
mStatus = MARQUEE_STOPPED;
mChoreographer.removeFrameCallback(mStartCallback);
mChoreographer.removeFrameCallback(mRestartCallback);
mChoreographer.removeFrameCallback(mTickCallback);
resetScroll();
}
private void resetScroll() {
mScroll = 0.0f;
final TextView textView = mView.get();
if (textView != null) textView.invalidate();
}
void start(int repeatLimit) {
if (repeatLimit == 0) {
stop();
return;
}
mRepeatLimit = repeatLimit;
final TextView textView = mView.get();
if (textView != null && textView.mLayout != null) {
mStatus = MARQUEE_STARTING;
mScroll = 0.0f;
final int textWidth = textView.getWidth() - textView.getCompoundPaddingLeft() -
textView.getCompoundPaddingRight();
final float lineWidth = textView.mLayout.getLineWidth(0);
final float gap = textWidth / 3.0f;
mGhostStart = lineWidth - textWidth + gap;
mMaxScroll = mGhostStart + textWidth;
mGhostOffset = lineWidth + gap;
mFadeStop = lineWidth + textWidth / 6.0f;
mMaxFadeScroll = mGhostStart + lineWidth + lineWidth;
textView.invalidate();
mChoreographer.postFrameCallback(mStartCallback);
}
}
float getGhostOffset() {
return mGhostOffset;
}
float getScroll() {
return mScroll;
}
float getMaxFadeScroll() {
return mMaxFadeScroll;
}
boolean shouldDrawLeftFade() {
return mScroll <= mFadeStop;
}
boolean shouldDrawGhost() {
return mStatus == MARQUEE_RUNNING && mScroll > mGhostStart;
}
boolean isRunning() {
return mStatus == MARQUEE_RUNNING;
}
boolean isStopped() {
return mStatus == MARQUEE_STOPPED;
}
}
private class ChangeWatcher implements TextWatcher, SpanWatcher {
private CharSequence mBeforeText;
public void beforeTextChanged(CharSequence buffer, int start,
int before, int after) {
if (DEBUG_EXTRACT) Log.v(LOG_TAG, "beforeTextChanged start=" + start
+ " before=" + before + " after=" + after + ": " + buffer);
if (AccessibilityManager.getInstance(mContext).isEnabled()
&& ((!isPasswordInputType(getInputType()) && !hasPasswordTransformationMethod())
|| shouldSpeakPasswordsForAccessibility())) {
mBeforeText = buffer.toString();
}
TextView.this.sendBeforeTextChanged(buffer, start, before, after);
}
public void onTextChanged(CharSequence buffer, int start, int before, int after) {
if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onTextChanged start=" + start
+ " before=" + before + " after=" + after + ": " + buffer);
TextView.this.handleTextChanged(buffer, start, before, after);
if (AccessibilityManager.getInstance(mContext).isEnabled() &&
(isFocused() || isSelected() && isShown())) {
sendAccessibilityEventTypeViewTextChanged(mBeforeText, start, before, after);
mBeforeText = null;
}
}
public void afterTextChanged(Editable buffer) {
if (DEBUG_EXTRACT) Log.v(LOG_TAG, "afterTextChanged: " + buffer);
TextView.this.sendAfterTextChanged(buffer);
if (MetaKeyKeyListener.getMetaState(buffer, MetaKeyKeyListener.META_SELECTING) != 0) {
MetaKeyKeyListener.stopSelecting(TextView.this, buffer);
}
}
public void onSpanChanged(Spannable buf, Object what, int s, int e, int st, int en) {
if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanChanged s=" + s + " e=" + e
+ " st=" + st + " en=" + en + " what=" + what + ": " + buf);
TextView.this.spanChange(buf, what, s, st, e, en);
}
public void onSpanAdded(Spannable buf, Object what, int s, int e) {
if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanAdded s=" + s + " e=" + e
+ " what=" + what + ": " + buf);
TextView.this.spanChange(buf, what, -1, s, -1, e);
}
public void onSpanRemoved(Spannable buf, Object what, int s, int e) {
if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanRemoved s=" + s + " e=" + e
+ " what=" + what + ": " + buf);
TextView.this.spanChange(buf, what, s, -1, e, -1);
}
}
}
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