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/*
* Copyright (C) 2014 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 com.android.systemui.qs;
import android.content.Context;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.graphics.Typeface;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.RippleDrawable;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.util.TypedValue;
import android.view.ContextThemeWrapper;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.ImageView.ScaleType;
import android.widget.TextView;
import com.android.systemui.R;
import com.android.systemui.qs.QSTile.State;
/** View that represents a standard quick settings tile. **/
public class QSTileView extends ViewGroup {
private static final Typeface CONDENSED = Typeface.create("sans-serif-condensed",
Typeface.NORMAL);
protected final Context mContext;
private final View mIcon;
private final View mDivider;
private final H mHandler = new H();
private final int mIconSizePx;
private int mTilePaddingPx;
private TextView mLabel;
private boolean mDual;
private OnClickListener mClickPrimary;
private OnClickListener mClickSecondary;
private RippleDrawable mRipple;
public QSTileView(Context context) {
super(context);
mContext = context;
final Resources res = context.getResources();
mIconSizePx = res.getDimensionPixelSize(R.dimen.qs_tile_icon_size);
recreateLabel();
setClipChildren(false);
mIcon = createIcon();
addView(mIcon);
mDivider = new View(mContext);
mDivider.setBackgroundColor(res.getColor(R.color.qs_tile_divider));
final int dh = res.getDimensionPixelSize(R.dimen.qs_tile_divider_height);
mDivider.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, dh));
addView(mDivider);
setClickable(true);
setBackground(getTileBackground());
}
private void recreateLabel() {
CharSequence labelText = null;
if (mLabel != null) {
labelText = mLabel.getText();
removeView(mLabel);
}
final Resources res = mContext.getResources();
mLabel = new TextView(mDual ? new ContextThemeWrapper(mContext, R.style.QSBorderless_Tiny)
: mContext);
mLabel.setId(android.R.id.title);
mLabel.setTextColor(res.getColor(R.color.qs_tile_text));
mLabel.setGravity(Gravity.CENTER_HORIZONTAL);
mLabel.setMinLines(2);
mTilePaddingPx = res.getDimensionPixelSize(
mDual ? R.dimen.qs_dual_tile_padding : R.dimen.qs_tile_padding);
final int bottomPadding = mDual ? 0 : mTilePaddingPx;
mLabel.setPadding(mTilePaddingPx, mTilePaddingPx, mTilePaddingPx, bottomPadding);
mLabel.setTypeface(CONDENSED);
mLabel.setTextSize(TypedValue.COMPLEX_UNIT_PX,
res.getDimensionPixelSize(R.dimen.qs_tile_text_size));
if (labelText != null) {
mLabel.setText(labelText);
}
addView(mLabel);
}
public void setDual(boolean dual) {
final boolean changed = dual != mDual;
mDual = dual;
if (changed) {
recreateLabel();
}
if (mDual) {
setOnClickListener(mClickPrimary);
mLabel.setClickable(true);
mLabel.setOnClickListener(mClickSecondary);
} else {
mLabel.setClickable(false);
setOnClickListener(mClickPrimary);
}
mDivider.setVisibility(dual ? VISIBLE : GONE);
postInvalidate();
}
public void init(OnClickListener clickPrimary, OnClickListener clickSecondary) {
mClickPrimary = clickPrimary;
mClickSecondary = clickSecondary;
}
protected View createIcon() {
final ImageView icon = new ImageView(mContext);
icon.setId(android.R.id.icon);
icon.setScaleType(ScaleType.CENTER_INSIDE);
return icon;
}
private Drawable getTileBackground() {
final int[] attrs = new int[] { android.R.attr.selectableItemBackground};
final TypedArray ta = mContext.obtainStyledAttributes(attrs);
final Drawable d = ta.getDrawable(0);
ta.recycle();
if (d instanceof RippleDrawable) {
mRipple = (RippleDrawable) d;
}
return d;
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
final int w = MeasureSpec.getSize(widthMeasureSpec);
final int h = MeasureSpec.getSize(heightMeasureSpec);
final int iconSpec = exactly(mIconSizePx);
mIcon.measure(iconSpec, iconSpec);
mLabel.measure(widthMeasureSpec, MeasureSpec.makeMeasureSpec(h, MeasureSpec.AT_MOST));
if (mDual) {
mDivider.measure(widthMeasureSpec, exactly(mDivider.getLayoutParams().height));
}
setMeasuredDimension(w, h);
}
private static int exactly(int size) {
return MeasureSpec.makeMeasureSpec(size, MeasureSpec.EXACTLY);
}
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
final int w = getMeasuredWidth();
final int h = getMeasuredHeight();
final int contentHeight = mTilePaddingPx + mIcon.getMeasuredHeight()
+ mLabel.getMeasuredHeight()
+ (mDual ? (mTilePaddingPx + mDivider.getMeasuredHeight()) : 0);
int top = Math.max(0, (h - contentHeight) / 2);
top += mTilePaddingPx;
final int iconLeft = (w - mIcon.getMeasuredWidth()) / 2;
layout(mIcon, iconLeft, top);
if (mRipple != null) {
// center the touch feedback on the center of the icon, and dial it down a bit
final int cx = w / 2;
final int cy = mIcon.getTop() + mIcon.getHeight() / 2;
final int rad = (int)(mIcon.getHeight() * 1.5);
mRipple.setHotspotBounds(cx - rad, cy - rad, cx + rad, cy + rad);
}
top = mIcon.getBottom();
if (mDual) {
top += mTilePaddingPx;
layout(mDivider, 0, top);
top = mDivider.getBottom();
}
layout(mLabel, 0, top);
}
private static void layout(View child, int left, int top) {
child.layout(left, top, left + child.getMeasuredWidth(), top + child.getMeasuredHeight());
}
protected void handleStateChanged(QSTile.State state) {
if (mIcon instanceof ImageView) {
ImageView iv = (ImageView) mIcon;
if (state.icon != null) {
iv.setImageDrawable(state.icon);
} else if (state.iconId > 0) {
iv.setImageResource(state.iconId);
}
}
mLabel.setText(state.label);
setContentDescription(state.contentDescription);
}
public void onStateChanged(QSTile.State state) {
mHandler.obtainMessage(H.STATE_CHANGED, state).sendToTarget();
}
private class H extends Handler {
private static final int STATE_CHANGED = 1;
public H() {
super(Looper.getMainLooper());
}
@Override
public void handleMessage(Message msg) {
if (msg.what == STATE_CHANGED) {
handleStateChanged((State) msg.obj);
}
}
}
}
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