/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.launcher3;
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import static com.android.launcher3.icons.GraphicsUtils.setColorAlphaBound;
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import android.animation.Animator;
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import android.animation.AnimatorListenerAdapter;
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import android.animation.ObjectAnimator;
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import android.content.Context;
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import android.content.res.ColorStateList;
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import android.content.res.TypedArray;
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import android.graphics.Canvas;
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import android.graphics.Color;
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import android.graphics.Paint;
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import android.graphics.Rect;
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import android.graphics.drawable.ColorDrawable;
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import android.graphics.drawable.Drawable;
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import android.text.TextUtils.TruncateAt;
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import android.util.AttributeSet;
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import android.util.Log;
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import android.util.Property;
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import android.util.TypedValue;
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import android.view.KeyEvent;
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import android.view.MotionEvent;
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import android.view.View;
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import android.view.ViewConfiguration;
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import android.view.ViewDebug;
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import android.widget.TextView;
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import com.android.launcher3.Launcher.OnResumeCallback;
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import com.android.launcher3.accessibility.LauncherAccessibilityDelegate;
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import com.android.launcher3.dot.DotInfo;
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import com.android.launcher3.folder.FolderIcon;
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import com.android.launcher3.graphics.DrawableFactory;
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import com.android.launcher3.graphics.IconPalette;
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import com.android.launcher3.graphics.IconShape;
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import com.android.launcher3.graphics.PreloadIconDrawable;
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import com.android.launcher3.icons.DotRenderer;
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import com.android.launcher3.icons.IconCache.IconLoadRequest;
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import com.android.launcher3.icons.IconCache.ItemInfoUpdateReceiver;
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import com.android.launcher3.model.PackageItemInfo;
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import com.android.launcher3.testing.TestProtocol;
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import com.android.launcher3.views.ActivityContext;
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import java.text.NumberFormat;
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/**
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* TextView that draws a bubble behind the text. We cannot use a LineBackgroundSpan
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* because we want to make the bubble taller than the text and TextView's clip is
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* too aggressive.
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*/
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public class BubbleTextView extends TextView implements ItemInfoUpdateReceiver, OnResumeCallback {
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private static final int DISPLAY_WORKSPACE = 0;
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private static final int DISPLAY_ALL_APPS = 1;
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private static final int DISPLAY_FOLDER = 2;
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private static final int[] STATE_PRESSED = new int[] {android.R.attr.state_pressed};
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private static final Property<BubbleTextView, Float> DOT_SCALE_PROPERTY
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= new Property<BubbleTextView, Float>(Float.TYPE, "dotScale") {
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@Override
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public Float get(BubbleTextView bubbleTextView) {
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return bubbleTextView.mDotParams.scale;
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}
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@Override
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public void set(BubbleTextView bubbleTextView, Float value) {
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bubbleTextView.mDotParams.scale = value;
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bubbleTextView.invalidate();
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}
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};
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public static final Property<BubbleTextView, Float> TEXT_ALPHA_PROPERTY
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= new Property<BubbleTextView, Float>(Float.class, "textAlpha") {
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@Override
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public Float get(BubbleTextView bubbleTextView) {
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return bubbleTextView.mTextAlpha;
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}
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@Override
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public void set(BubbleTextView bubbleTextView, Float alpha) {
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bubbleTextView.setTextAlpha(alpha);
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}
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};
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private final ActivityContext mActivity;
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private Drawable mIcon;
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private final boolean mCenterVertically;
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private final CheckLongPressHelper mLongPressHelper;
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private final StylusEventHelper mStylusEventHelper;
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private final float mSlop;
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private final boolean mLayoutHorizontal;
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private final int mIconSize;
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@ViewDebug.ExportedProperty(category = "launcher")
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private boolean mIsIconVisible = true;
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@ViewDebug.ExportedProperty(category = "launcher")
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private int mTextColor;
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@ViewDebug.ExportedProperty(category = "launcher")
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private float mTextAlpha = 1;
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@ViewDebug.ExportedProperty(category = "launcher")
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private DotInfo mDotInfo;
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private DotRenderer mDotRenderer;
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@ViewDebug.ExportedProperty(category = "launcher", deepExport = true)
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private DotRenderer.DrawParams mDotParams;
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private Animator mDotScaleAnim;
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private boolean mForceHideDot;
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@ViewDebug.ExportedProperty(category = "launcher")
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private boolean mStayPressed;
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@ViewDebug.ExportedProperty(category = "launcher")
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private boolean mIgnorePressedStateChange;
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@ViewDebug.ExportedProperty(category = "launcher")
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private boolean mDisableRelayout = false;
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private IconLoadRequest mIconLoadRequest;
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public BubbleTextView(Context context) {
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this(context, null, 0);
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}
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public BubbleTextView(Context context, AttributeSet attrs) {
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this(context, attrs, 0);
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}
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public BubbleTextView(Context context, AttributeSet attrs, int defStyle) {
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super(context, attrs, defStyle);
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mActivity = ActivityContext.lookupContext(context);
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DeviceProfile grid = mActivity.getDeviceProfile();
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mSlop = ViewConfiguration.get(getContext()).getScaledTouchSlop();
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TypedArray a = context.obtainStyledAttributes(attrs,
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R.styleable.BubbleTextView, defStyle, 0);
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mLayoutHorizontal = a.getBoolean(R.styleable.BubbleTextView_layoutHorizontal, false);
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int display = a.getInteger(R.styleable.BubbleTextView_iconDisplay, DISPLAY_WORKSPACE);
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int defaultIconSize = grid.iconSizePx;
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if (display == DISPLAY_WORKSPACE) {
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setTextSize(TypedValue.COMPLEX_UNIT_PX, grid.iconTextSizePx);
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setCompoundDrawablePadding(grid.iconDrawablePaddingPx);
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} else if (display == DISPLAY_ALL_APPS) {
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setTextSize(TypedValue.COMPLEX_UNIT_PX, grid.allAppsIconTextSizePx);
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setCompoundDrawablePadding(grid.allAppsIconDrawablePaddingPx);
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defaultIconSize = grid.allAppsIconSizePx;
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} else if (display == DISPLAY_FOLDER) {
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setTextSize(TypedValue.COMPLEX_UNIT_PX, grid.folderChildTextSizePx);
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setCompoundDrawablePadding(grid.folderChildDrawablePaddingPx);
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defaultIconSize = grid.folderChildIconSizePx;
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}
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mCenterVertically = a.getBoolean(R.styleable.BubbleTextView_centerVertically, false);
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mIconSize = a.getDimensionPixelSize(R.styleable.BubbleTextView_iconSizeOverride,
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defaultIconSize);
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a.recycle();
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mLongPressHelper = new CheckLongPressHelper(this);
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mStylusEventHelper = new StylusEventHelper(new SimpleOnStylusPressListener(this), this);
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mDotParams = new DotRenderer.DrawParams();
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setEllipsize(TruncateAt.END);
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setAccessibilityDelegate(mActivity.getAccessibilityDelegate());
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setTextAlpha(1f);
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}
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@Override
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protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) {
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// Disable marques when not focused to that, so that updating text does not cause relayout.
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setEllipsize(focused ? TruncateAt.MARQUEE : TruncateAt.END);
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super.onFocusChanged(focused, direction, previouslyFocusedRect);
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}
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/**
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* Resets the view so it can be recycled.
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*/
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public void reset() {
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mDotInfo = null;
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mDotParams.color = Color.TRANSPARENT;
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cancelDotScaleAnim();
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mDotParams.scale = 0f;
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mForceHideDot = false;
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}
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private void cancelDotScaleAnim() {
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if (mDotScaleAnim != null) {
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mDotScaleAnim.cancel();
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}
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}
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private void animateDotScale(float... dotScales) {
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cancelDotScaleAnim();
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mDotScaleAnim = ObjectAnimator.ofFloat(this, DOT_SCALE_PROPERTY, dotScales);
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mDotScaleAnim.addListener(new AnimatorListenerAdapter() {
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@Override
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public void onAnimationEnd(Animator animation) {
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mDotScaleAnim = null;
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}
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});
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mDotScaleAnim.start();
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}
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public void applyFromWorkspaceItem(WorkspaceItemInfo info) {
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applyFromWorkspaceItem(info, false);
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}
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@Override
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public void setAccessibilityDelegate(AccessibilityDelegate delegate) {
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if (delegate instanceof LauncherAccessibilityDelegate) {
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super.setAccessibilityDelegate(delegate);
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} else {
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// NO-OP
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// Workaround for b/129745295 where RecyclerView is setting our Accessibility
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// delegate incorrectly. There are no cases when we shouldn't be using the
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// LauncherAccessibilityDelegate for BubbleTextView.
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}
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}
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public void applyFromWorkspaceItem(WorkspaceItemInfo info, boolean promiseStateChanged) {
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applyIconAndLabel(info);
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setTag(info);
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if (promiseStateChanged || (info.hasPromiseIconUi())) {
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applyPromiseState(promiseStateChanged);
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}
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applyDotState(info, false /* animate */);
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}
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public void applyFromApplicationInfo(AppInfo info) {
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applyIconAndLabel(info);
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// We don't need to check the info since it's not a WorkspaceItemInfo
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super.setTag(info);
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// Verify high res immediately
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verifyHighRes();
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if (info instanceof PromiseAppInfo) {
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PromiseAppInfo promiseAppInfo = (PromiseAppInfo) info;
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applyProgressLevel(promiseAppInfo.level);
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}
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applyDotState(info, false /* animate */);
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}
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public void applyFromPackageItemInfo(PackageItemInfo info) {
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applyIconAndLabel(info);
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// We don't need to check the info since it's not a WorkspaceItemInfo
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super.setTag(info);
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// Verify high res immediately
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verifyHighRes();
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}
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private void applyIconAndLabel(ItemInfoWithIcon info) {
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FastBitmapDrawable iconDrawable = DrawableFactory.INSTANCE.get(getContext())
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.newIcon(getContext(), info);
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mDotParams.color = IconPalette.getMutedColor(info.iconColor, 0.54f);
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setIcon(iconDrawable);
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setText(info.title);
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if (info.contentDescription != null) {
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setContentDescription(info.isDisabled()
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? getContext().getString(R.string.disabled_app_label, info.contentDescription)
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: info.contentDescription);
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}
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}
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/**
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* Overrides the default long press timeout.
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*/
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public void setLongPressTimeoutFactor(float longPressTimeoutFactor) {
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mLongPressHelper.setLongPressTimeoutFactor(longPressTimeoutFactor);
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}
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@Override
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public void refreshDrawableState() {
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if (!mIgnorePressedStateChange) {
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super.refreshDrawableState();
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}
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}
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@Override
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protected int[] onCreateDrawableState(int extraSpace) {
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final int[] drawableState = super.onCreateDrawableState(extraSpace + 1);
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if (mStayPressed) {
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mergeDrawableStates(drawableState, STATE_PRESSED);
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}
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return drawableState;
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}
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/** Returns the icon for this view. */
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public Drawable getIcon() {
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return mIcon;
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}
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@Override
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public boolean onTouchEvent(MotionEvent event) {
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if (TestProtocol.sDebugTracing) {
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Log.d(TestProtocol.NO_START_TAG, "BubbleTextView.onTouchEvent " + event);
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}
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// Call the superclass onTouchEvent first, because sometimes it changes the state to
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// isPressed() on an ACTION_UP
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boolean result = super.onTouchEvent(event);
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// Check for a stylus button press, if it occurs cancel any long press checks.
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if (mStylusEventHelper.onMotionEvent(event)) {
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mLongPressHelper.cancelLongPress();
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result = true;
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}
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switch (event.getAction()) {
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case MotionEvent.ACTION_DOWN:
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// If we're in a stylus button press, don't check for long press.
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if (!mStylusEventHelper.inStylusButtonPressed()) {
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mLongPressHelper.postCheckForLongPress();
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}
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break;
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case MotionEvent.ACTION_CANCEL:
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case MotionEvent.ACTION_UP:
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mLongPressHelper.cancelLongPress();
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break;
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case MotionEvent.ACTION_MOVE:
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if (!Utilities.pointInView(this, event.getX(), event.getY(), mSlop)) {
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mLongPressHelper.cancelLongPress();
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}
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break;
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}
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return result;
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}
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void setStayPressed(boolean stayPressed) {
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mStayPressed = stayPressed;
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refreshDrawableState();
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}
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@Override
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public void onVisibilityAggregated(boolean isVisible) {
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super.onVisibilityAggregated(isVisible);
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if (mIcon != null) {
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mIcon.setVisible(isVisible, false);
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}
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}
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@Override
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public void onLauncherResume() {
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// Reset the pressed state of icon that was locked in the press state while activity
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// was launching
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setStayPressed(false);
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}
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void clearPressedBackground() {
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setPressed(false);
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setStayPressed(false);
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}
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@Override
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public boolean onKeyUp(int keyCode, KeyEvent event) {
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// Unlike touch events, keypress event propagate pressed state change immediately,
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// without waiting for onClickHandler to execute. Disable pressed state changes here
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// to avoid flickering.
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mIgnorePressedStateChange = true;
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boolean result = super.onKeyUp(keyCode, event);
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mIgnorePressedStateChange = false;
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refreshDrawableState();
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return result;
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}
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@SuppressWarnings("wrongcall")
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protected void drawWithoutDot(Canvas canvas) {
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super.onDraw(canvas);
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}
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@Override
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public void onDraw(Canvas canvas) {
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super.onDraw(canvas);
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drawDotIfNecessary(canvas);
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}
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/**
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* Draws the notification dot in the top right corner of the icon bounds.
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* @param canvas The canvas to draw to.
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*/
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protected void drawDotIfNecessary(Canvas canvas) {
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if (!mForceHideDot && (hasDot() || mDotParams.scale > 0)) {
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getIconBounds(mDotParams.iconBounds);
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Utilities.scaleRectAboutCenter(mDotParams.iconBounds, IconShape.getNormalizationScale());
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final int scrollX = getScrollX();
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final int scrollY = getScrollY();
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canvas.translate(scrollX, scrollY);
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mDotRenderer.draw(canvas, mDotParams);
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canvas.translate(-scrollX, -scrollY);
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}
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}
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public void forceHideDot(boolean forceHideDot) {
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if (mForceHideDot == forceHideDot) {
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return;
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}
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mForceHideDot = forceHideDot;
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if (forceHideDot) {
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invalidate();
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} else if (hasDot()) {
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animateDotScale(0, 1);
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}
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}
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private boolean hasDot() {
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return mDotInfo != null;
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}
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public void getIconBounds(Rect outBounds) {
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getIconBounds(this, outBounds, mIconSize);
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}
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public static void getIconBounds(View iconView, Rect outBounds, int iconSize) {
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int top = iconView.getPaddingTop();
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int left = (iconView.getWidth() - iconSize) / 2;
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int right = left + iconSize;
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int bottom = top + iconSize;
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outBounds.set(left, top, right, bottom);
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}
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@Override
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protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
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if (mCenterVertically) {
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Paint.FontMetrics fm = getPaint().getFontMetrics();
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int cellHeightPx = mIconSize + getCompoundDrawablePadding() +
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(int) Math.ceil(fm.bottom - fm.top);
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int height = MeasureSpec.getSize(heightMeasureSpec);
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setPadding(getPaddingLeft(), (height - cellHeightPx) / 2, getPaddingRight(),
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getPaddingBottom());
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}
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super.onMeasure(widthMeasureSpec, heightMeasureSpec);
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}
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@Override
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public void setTextColor(int color) {
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mTextColor = color;
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super.setTextColor(getModifiedColor());
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}
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@Override
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public void setTextColor(ColorStateList colors) {
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mTextColor = colors.getDefaultColor();
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if (Float.compare(mTextAlpha, 1) == 0) {
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super.setTextColor(colors);
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} else {
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super.setTextColor(getModifiedColor());
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}
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}
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public boolean shouldTextBeVisible() {
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// Text should be visible everywhere but the hotseat.
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Object tag = getParent() instanceof FolderIcon ? ((View) getParent()).getTag() : getTag();
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ItemInfo info = tag instanceof ItemInfo ? (ItemInfo) tag : null;
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return info == null || info.container != LauncherSettings.Favorites.CONTAINER_HOTSEAT;
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}
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public void setTextVisibility(boolean visible) {
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setTextAlpha(visible ? 1 : 0);
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}
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private void setTextAlpha(float alpha) {
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mTextAlpha = alpha;
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super.setTextColor(getModifiedColor());
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}
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private int getModifiedColor() {
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if (mTextAlpha == 0) {
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// Special case to prevent text shadows in high contrast mode
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return Color.TRANSPARENT;
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}
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return setColorAlphaBound(mTextColor, Math.round(Color.alpha(mTextColor) * mTextAlpha));
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}
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/**
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* Creates an animator to fade the text in or out.
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* @param fadeIn Whether the text should fade in or fade out.
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*/
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public ObjectAnimator createTextAlphaAnimator(boolean fadeIn) {
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float toAlpha = shouldTextBeVisible() && fadeIn ? 1 : 0;
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return ObjectAnimator.ofFloat(this, TEXT_ALPHA_PROPERTY, toAlpha);
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}
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@Override
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public void cancelLongPress() {
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super.cancelLongPress();
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mLongPressHelper.cancelLongPress();
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}
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public void applyPromiseState(boolean promiseStateChanged) {
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if (getTag() instanceof WorkspaceItemInfo) {
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WorkspaceItemInfo info = (WorkspaceItemInfo) getTag();
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final boolean isPromise = info.hasPromiseIconUi();
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final int progressLevel = isPromise ?
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((info.hasStatusFlag(WorkspaceItemInfo.FLAG_INSTALL_SESSION_ACTIVE) ?
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info.getInstallProgress() : 0)) : 100;
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PreloadIconDrawable preloadDrawable = applyProgressLevel(progressLevel);
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if (preloadDrawable != null && promiseStateChanged) {
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preloadDrawable.maybePerformFinishedAnimation();
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}
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}
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}
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public PreloadIconDrawable applyProgressLevel(int progressLevel) {
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if (getTag() instanceof ItemInfoWithIcon) {
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ItemInfoWithIcon info = (ItemInfoWithIcon) getTag();
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if (progressLevel >= 100) {
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setContentDescription(info.contentDescription != null
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? info.contentDescription : "");
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} else if (progressLevel > 0) {
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setContentDescription(getContext()
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.getString(R.string.app_downloading_title, info.title,
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NumberFormat.getPercentInstance().format(progressLevel * 0.01)));
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} else {
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setContentDescription(getContext()
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.getString(R.string.app_waiting_download_title, info.title));
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}
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if (mIcon != null) {
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final PreloadIconDrawable preloadDrawable;
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if (mIcon instanceof PreloadIconDrawable) {
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preloadDrawable = (PreloadIconDrawable) mIcon;
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preloadDrawable.setLevel(progressLevel);
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} else {
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preloadDrawable = DrawableFactory.INSTANCE.get(getContext())
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.newPendingIcon(getContext(), info);
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preloadDrawable.setLevel(progressLevel);
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setIcon(preloadDrawable);
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}
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return preloadDrawable;
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}
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}
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return null;
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}
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public void applyDotState(ItemInfo itemInfo, boolean animate) {
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if (mIcon instanceof FastBitmapDrawable) {
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boolean wasDotted = mDotInfo != null;
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mDotInfo = mActivity.getDotInfoForItem(itemInfo);
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boolean isDotted = mDotInfo != null;
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float newDotScale = isDotted ? 1f : 0;
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mDotRenderer = mActivity.getDeviceProfile().mDotRenderer;
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if (wasDotted || isDotted) {
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// Animate when a dot is first added or when it is removed.
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if (animate && (wasDotted ^ isDotted) && isShown()) {
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animateDotScale(newDotScale);
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} else {
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cancelDotScaleAnim();
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mDotParams.scale = newDotScale;
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invalidate();
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}
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}
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if (itemInfo.contentDescription != null) {
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if (itemInfo.isDisabled()) {
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setContentDescription(getContext().getString(R.string.disabled_app_label,
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itemInfo.contentDescription));
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} else if (hasDot()) {
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int count = mDotInfo.getNotificationCount();
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setContentDescription(getContext().getResources().getQuantityString(
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R.plurals.dotted_app_label, count, itemInfo.contentDescription, count));
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} else {
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setContentDescription(itemInfo.contentDescription);
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}
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}
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}
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}
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/**
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* Sets the icon for this view based on the layout direction.
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*/
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private void setIcon(Drawable icon) {
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if (mIsIconVisible) {
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applyCompoundDrawables(icon);
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}
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mIcon = icon;
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if (mIcon != null) {
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mIcon.setVisible(getWindowVisibility() == VISIBLE && isShown(), false);
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}
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}
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public void setIconVisible(boolean visible) {
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mIsIconVisible = visible;
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Drawable icon = visible ? mIcon : new ColorDrawable(Color.TRANSPARENT);
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applyCompoundDrawables(icon);
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}
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protected void applyCompoundDrawables(Drawable icon) {
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// If we had already set an icon before, disable relayout as the icon size is the
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// same as before.
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mDisableRelayout = mIcon != null;
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icon.setBounds(0, 0, mIconSize, mIconSize);
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if (mLayoutHorizontal) {
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setCompoundDrawablesRelative(icon, null, null, null);
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} else {
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setCompoundDrawables(null, icon, null, null);
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}
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mDisableRelayout = false;
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}
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@Override
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public void requestLayout() {
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if (!mDisableRelayout) {
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super.requestLayout();
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}
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}
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/**
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* Applies the item info if it is same as what the view is pointing to currently.
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*/
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@Override
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public void reapplyItemInfo(ItemInfoWithIcon info) {
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if (getTag() == info) {
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mIconLoadRequest = null;
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mDisableRelayout = true;
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// Optimization: Starting in N, pre-uploads the bitmap to RenderThread.
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info.iconBitmap.prepareToDraw();
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if (info instanceof AppInfo) {
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applyFromApplicationInfo((AppInfo) info);
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} else if (info instanceof WorkspaceItemInfo) {
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applyFromWorkspaceItem((WorkspaceItemInfo) info);
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mActivity.invalidateParent(info);
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} else if (info instanceof PackageItemInfo) {
|
applyFromPackageItemInfo((PackageItemInfo) info);
|
}
|
|
mDisableRelayout = false;
|
}
|
}
|
|
/**
|
* Verifies that the current icon is high-res otherwise posts a request to load the icon.
|
*/
|
public void verifyHighRes() {
|
if (mIconLoadRequest != null) {
|
mIconLoadRequest.cancel();
|
mIconLoadRequest = null;
|
}
|
if (getTag() instanceof ItemInfoWithIcon) {
|
ItemInfoWithIcon info = (ItemInfoWithIcon) getTag();
|
if (info.usingLowResIcon()) {
|
mIconLoadRequest = LauncherAppState.getInstance(getContext()).getIconCache()
|
.updateIconInBackground(BubbleTextView.this, info);
|
}
|
}
|
}
|
|
public int getIconSize() {
|
return mIconSize;
|
}
|
}
|
