diff options
Diffstat (limited to 'src/com/cyanogenmod/trebuchet/PagedViewWidget.java')
| -rw-r--r-- | src/com/cyanogenmod/trebuchet/PagedViewWidget.java | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/src/com/cyanogenmod/trebuchet/PagedViewWidget.java b/src/com/cyanogenmod/trebuchet/PagedViewWidget.java new file mode 100644 index 0000000..6fa0d39 --- /dev/null +++ b/src/com/cyanogenmod/trebuchet/PagedViewWidget.java @@ -0,0 +1,236 @@ +/* + * Copyright (C) 2010 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.cyanogenmod.trebuchet; + +import android.appwidget.AppWidgetProviderInfo; +import android.content.Context; +import android.content.pm.PackageManager; +import android.content.pm.ResolveInfo; +import android.content.res.Resources; +import android.graphics.Rect; +import android.util.AttributeSet; +import android.view.MotionEvent; +import android.view.View; +import android.widget.ImageView; +import android.widget.LinearLayout; +import android.widget.TextView; + +import com.cyanogenmod.trebuchet.R; + +/** + * The linear layout used strictly for the widget/wallpaper tab of the customization tray + */ +public class PagedViewWidget extends LinearLayout { + static final String TAG = "PagedViewWidgetLayout"; + + private static boolean sDeletePreviewsWhenDetachedFromWindow = true; + + private String mDimensionsFormatString; + CheckForShortPress mPendingCheckForShortPress = null; + ShortPressListener mShortPressListener = null; + boolean mShortPressTriggered = false; + static PagedViewWidget sShortpressTarget = null; + boolean mIsAppWidget; + private final Rect mOriginalImagePadding = new Rect(); + + public PagedViewWidget(Context context) { + this(context, null); + } + + public PagedViewWidget(Context context, AttributeSet attrs) { + this(context, attrs, 0); + } + + public PagedViewWidget(Context context, AttributeSet attrs, int defStyle) { + super(context, attrs, defStyle); + + final Resources r = context.getResources(); + mDimensionsFormatString = r.getString(R.string.widget_dims_format); + + setWillNotDraw(false); + setClipToPadding(false); + } + + @Override + protected void onFinishInflate() { + super.onFinishInflate(); + + final ImageView image = (ImageView) findViewById(R.id.widget_preview); + mOriginalImagePadding.left = image.getPaddingLeft(); + mOriginalImagePadding.top = image.getPaddingTop(); + mOriginalImagePadding.right = image.getPaddingRight(); + mOriginalImagePadding.bottom = image.getPaddingBottom(); + } + + public static void setDeletePreviewsWhenDetachedFromWindow(boolean value) { + sDeletePreviewsWhenDetachedFromWindow = value; + } + + @Override + protected void onDetachedFromWindow() { + super.onDetachedFromWindow(); + + if (sDeletePreviewsWhenDetachedFromWindow) { + final ImageView image = (ImageView) findViewById(R.id.widget_preview); + if (image != null) { + FastBitmapDrawable preview = (FastBitmapDrawable) image.getDrawable(); + if (preview != null && preview.getBitmap() != null) { + preview.getBitmap().recycle(); + } + image.setImageDrawable(null); + } + } + } + + public void applyFromAppWidgetProviderInfo(AppWidgetProviderInfo info, + int maxWidth, int[] cellSpan) { + mIsAppWidget = true; + final ImageView image = (ImageView) findViewById(R.id.widget_preview); + if (maxWidth > -1) { + image.setMaxWidth(maxWidth); + } + image.setContentDescription(info.label); + final TextView name = (TextView) findViewById(R.id.widget_name); + name.setText(info.label); + final TextView dims = (TextView) findViewById(R.id.widget_dims); + if (dims != null) { + int hSpan = Math.min(cellSpan[0], LauncherModel.getCellCountX()); + int vSpan = Math.min(cellSpan[1], LauncherModel.getCellCountY()); + dims.setText(String.format(mDimensionsFormatString, hSpan, vSpan)); + } + } + + public void applyFromResolveInfo(PackageManager pm, ResolveInfo info) { + mIsAppWidget = false; + CharSequence label = info.loadLabel(pm); + final ImageView image = (ImageView) findViewById(R.id.widget_preview); + image.setContentDescription(label); + final TextView name = (TextView) findViewById(R.id.widget_name); + name.setText(label); + final TextView dims = (TextView) findViewById(R.id.widget_dims); + if (dims != null) { + dims.setText(String.format(mDimensionsFormatString, 1, 1)); + } + } + + public int[] getPreviewSize() { + final ImageView i = (ImageView) findViewById(R.id.widget_preview); + int[] maxSize = new int[2]; + maxSize[0] = i.getWidth() - mOriginalImagePadding.left - mOriginalImagePadding.right; + maxSize[1] = i.getHeight() - mOriginalImagePadding.top; + return maxSize; + } + + void applyPreview(FastBitmapDrawable preview, int index) { + final PagedViewWidgetImageView image = + (PagedViewWidgetImageView) findViewById(R.id.widget_preview); + if (preview != null) { + image.mAllowRequestLayout = false; + image.setImageDrawable(preview); + if (mIsAppWidget) { + // center horizontally + int[] imageSize = getPreviewSize(); + int centerAmount = (imageSize[0] - preview.getIntrinsicWidth()) / 2; + image.setPadding(mOriginalImagePadding.left + centerAmount, + mOriginalImagePadding.top, + mOriginalImagePadding.right, + mOriginalImagePadding.bottom); + } + image.setAlpha(1f); + image.mAllowRequestLayout = true; + } + } + + void setShortPressListener(ShortPressListener listener) { + mShortPressListener = listener; + } + + interface ShortPressListener { + void onShortPress(View v); + void cleanUpShortPress(View v); + } + + class CheckForShortPress implements Runnable { + public void run() { + if (sShortpressTarget != null) return; + if (mShortPressListener != null) { + mShortPressListener.onShortPress(PagedViewWidget.this); + sShortpressTarget = PagedViewWidget.this; + } + mShortPressTriggered = true; + } + } + + private void checkForShortPress() { + if (sShortpressTarget != null) return; + if (mPendingCheckForShortPress == null) { + mPendingCheckForShortPress = new CheckForShortPress(); + } + postDelayed(mPendingCheckForShortPress, 120); + } + + /** + * Remove the longpress detection timer. + */ + private void removeShortPressCallback() { + if (mPendingCheckForShortPress != null) { + removeCallbacks(mPendingCheckForShortPress); + } + } + + private void cleanUpShortPress() { + removeShortPressCallback(); + if (mShortPressTriggered) { + if (mShortPressListener != null) { + mShortPressListener.cleanUpShortPress(PagedViewWidget.this); + } + mShortPressTriggered = false; + } + } + + static void resetShortPressTarget() { + sShortpressTarget = null; + } + + @Override + public boolean onTouchEvent(MotionEvent event) { + super.onTouchEvent(event); + + switch (event.getAction()) { + case MotionEvent.ACTION_UP: + cleanUpShortPress(); + break; + case MotionEvent.ACTION_DOWN: + checkForShortPress(); + break; + case MotionEvent.ACTION_CANCEL: + cleanUpShortPress(); + break; + case MotionEvent.ACTION_MOVE: + break; + } + + // We eat up the touch events here, since the PagedView (which uses the same swiping + // touch code as Workspace previously) uses onInterceptTouchEvent() to determine when + // the user is scrolling between pages. This means that if the pages themselves don't + // handle touch events, it gets forwarded up to PagedView itself, and it's own + // onTouchEvent() handling will prevent further intercept touch events from being called + // (it's the same view in that case). This is not ideal, but to prevent more changes, + // we just always mark the touch event as handled. + return true; + } +} |