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/*
* Copyright (C) 2008 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.launcher3;
import android.animation.ObjectAnimator;
import android.content.Context;
import android.content.res.ColorStateList;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Point;
import android.graphics.Rect;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.support.v4.graphics.ColorUtils;
import android.text.TextUtils.TruncateAt;
import android.util.AttributeSet;
import android.util.Property;
import android.util.TypedValue;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.ViewDebug;
import android.widget.TextView;
import com.android.launcher3.IconCache.IconLoadRequest;
import com.android.launcher3.IconCache.ItemInfoUpdateReceiver;
import com.android.launcher3.Launcher.OnResumeCallback;
import com.android.launcher3.badge.BadgeInfo;
import com.android.launcher3.badge.BadgeRenderer;
import com.android.launcher3.folder.FolderIcon;
import com.android.launcher3.graphics.DrawableFactory;
import com.android.launcher3.graphics.IconPalette;
import com.android.launcher3.graphics.PreloadIconDrawable;
import com.android.launcher3.model.PackageItemInfo;
import java.text.NumberFormat;
/**
* TextView that draws a bubble behind the text. We cannot use a LineBackgroundSpan
* because we want to make the bubble taller than the text and TextView's clip is
* too aggressive.
*/
public class BubbleTextView extends TextView implements ItemInfoUpdateReceiver, OnResumeCallback {
private static final int DISPLAY_WORKSPACE = 0;
private static final int DISPLAY_ALL_APPS = 1;
private static final int DISPLAY_FOLDER = 2;
private static final int[] STATE_PRESSED = new int[] {android.R.attr.state_pressed};
private final BaseDraggingActivity mActivity;
private Drawable mIcon;
private final boolean mCenterVertically;
private final CheckLongPressHelper mLongPressHelper;
private final StylusEventHelper mStylusEventHelper;
private final float mSlop;
private final boolean mLayoutHorizontal;
private final int mIconSize;
@ViewDebug.ExportedProperty(category = "launcher")
private int mTextColor;
private boolean mIsIconVisible = true;
private BadgeInfo mBadgeInfo;
private BadgeRenderer mBadgeRenderer;
private int mBadgeColor;
private float mBadgeScale;
private boolean mForceHideBadge;
private Point mTempSpaceForBadgeOffset = new Point();
private Rect mTempIconBounds = new Rect();
private static final Property<BubbleTextView, Float> BADGE_SCALE_PROPERTY
= new Property<BubbleTextView, Float>(Float.TYPE, "badgeScale") {
@Override
public Float get(BubbleTextView bubbleTextView) {
return bubbleTextView.mBadgeScale;
}
@Override
public void set(BubbleTextView bubbleTextView, Float value) {
bubbleTextView.mBadgeScale = value;
bubbleTextView.invalidate();
}
};
public static final Property<BubbleTextView, Integer> TEXT_ALPHA_PROPERTY
= new Property<BubbleTextView, Integer>(Integer.class, "textAlpha") {
@Override
public Integer get(BubbleTextView bubbleTextView) {
return bubbleTextView.getTextAlpha();
}
@Override
public void set(BubbleTextView bubbleTextView, Integer alpha) {
bubbleTextView.setTextAlpha(alpha);
}
};
@ViewDebug.ExportedProperty(category = "launcher")
private boolean mStayPressed;
@ViewDebug.ExportedProperty(category = "launcher")
private boolean mIgnorePressedStateChange;
@ViewDebug.ExportedProperty(category = "launcher")
private boolean mDisableRelayout = false;
private IconLoadRequest mIconLoadRequest;
public BubbleTextView(Context context) {
this(context, null, 0);
}
public BubbleTextView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public BubbleTextView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
mActivity = BaseDraggingActivity.fromContext(context);
DeviceProfile grid = mActivity.getDeviceProfile();
mSlop = ViewConfiguration.get(getContext()).getScaledTouchSlop();
TypedArray a = context.obtainStyledAttributes(attrs,
R.styleable.BubbleTextView, defStyle, 0);
mLayoutHorizontal = a.getBoolean(R.styleable.BubbleTextView_layoutHorizontal, false);
int display = a.getInteger(R.styleable.BubbleTextView_iconDisplay, DISPLAY_WORKSPACE);
int defaultIconSize = grid.iconSizePx;
if (display == DISPLAY_WORKSPACE) {
setTextSize(TypedValue.COMPLEX_UNIT_PX, grid.iconTextSizePx);
setCompoundDrawablePadding(grid.iconDrawablePaddingPx);
} else if (display == DISPLAY_ALL_APPS) {
setTextSize(TypedValue.COMPLEX_UNIT_PX, grid.allAppsIconTextSizePx);
setCompoundDrawablePadding(grid.allAppsIconDrawablePaddingPx);
defaultIconSize = grid.allAppsIconSizePx;
} else if (display == DISPLAY_FOLDER) {
setTextSize(TypedValue.COMPLEX_UNIT_PX, grid.folderChildTextSizePx);
setCompoundDrawablePadding(grid.folderChildDrawablePaddingPx);
defaultIconSize = grid.folderChildIconSizePx;
}
mCenterVertically = a.getBoolean(R.styleable.BubbleTextView_centerVertically, false);
mIconSize = a.getDimensionPixelSize(R.styleable.BubbleTextView_iconSizeOverride,
defaultIconSize);
a.recycle();
mLongPressHelper = new CheckLongPressHelper(this);
mStylusEventHelper = new StylusEventHelper(new SimpleOnStylusPressListener(this), this);
setEllipsize(TruncateAt.END);
setAccessibilityDelegate(mActivity.getAccessibilityDelegate());
}
@Override
protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) {
// Disable marques when not focused to that, so that updating text does not cause relayout.
setEllipsize(focused ? TruncateAt.MARQUEE : TruncateAt.END);
super.onFocusChanged(focused, direction, previouslyFocusedRect);
}
/**
* Resets the view so it can be recycled.
*/
public void reset() {
mBadgeInfo = null;
mBadgeColor = Color.TRANSPARENT;
mBadgeScale = 0f;
mForceHideBadge = false;
}
public void applyFromShortcutInfo(ShortcutInfo info) {
applyFromShortcutInfo(info, false);
}
public void applyFromShortcutInfo(ShortcutInfo info, boolean promiseStateChanged) {
applyIconAndLabel(info);
setTag(info);
if (promiseStateChanged || (info.hasPromiseIconUi())) {
applyPromiseState(promiseStateChanged);
}
applyBadgeState(info, false /* animate */);
}
public void applyFromApplicationInfo(AppInfo info) {
applyIconAndLabel(info);
// We don't need to check the info since it's not a ShortcutInfo
super.setTag(info);
// Verify high res immediately
verifyHighRes();
if (info instanceof PromiseAppInfo) {
PromiseAppInfo promiseAppInfo = (PromiseAppInfo) info;
applyProgressLevel(promiseAppInfo.level);
}
applyBadgeState(info, false /* animate */);
}
public void applyFromPackageItemInfo(PackageItemInfo info) {
applyIconAndLabel(info);
// We don't need to check the info since it's not a ShortcutInfo
super.setTag(info);
// Verify high res immediately
verifyHighRes();
}
private void applyIconAndLabel(ItemInfoWithIcon info) {
FastBitmapDrawable iconDrawable = DrawableFactory.get(getContext()).newIcon(info);
mBadgeColor = IconPalette.getMutedColor(info.iconColor, 0.54f);
setIcon(iconDrawable);
setText(info.title);
if (info.contentDescription != null) {
setContentDescription(info.isDisabled()
? getContext().getString(R.string.disabled_app_label, info.contentDescription)
: info.contentDescription);
}
}
/**
* Overrides the default long press timeout.
*/
public void setLongPressTimeout(int longPressTimeout) {
mLongPressHelper.setLongPressTimeout(longPressTimeout);
}
@Override
public void setTag(Object tag) {
if (tag != null) {
LauncherModel.checkItemInfo((ItemInfo) tag);
}
super.setTag(tag);
}
@Override
public void refreshDrawableState() {
if (!mIgnorePressedStateChange) {
super.refreshDrawableState();
}
}
@Override
protected int[] onCreateDrawableState(int extraSpace) {
final int[] drawableState = super.onCreateDrawableState(extraSpace + 1);
if (mStayPressed) {
mergeDrawableStates(drawableState, STATE_PRESSED);
}
return drawableState;
}
/** Returns the icon for this view. */
public Drawable getIcon() {
return mIcon;
}
@Override
public boolean onTouchEvent(MotionEvent event) {
// Call the superclass onTouchEvent first, because sometimes it changes the state to
// isPressed() on an ACTION_UP
boolean result = super.onTouchEvent(event);
// Check for a stylus button press, if it occurs cancel any long press checks.
if (mStylusEventHelper.onMotionEvent(event)) {
mLongPressHelper.cancelLongPress();
result = true;
}
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
// If we're in a stylus button press, don't check for long press.
if (!mStylusEventHelper.inStylusButtonPressed()) {
mLongPressHelper.postCheckForLongPress();
}
break;
case MotionEvent.ACTION_CANCEL:
case MotionEvent.ACTION_UP:
mLongPressHelper.cancelLongPress();
break;
case MotionEvent.ACTION_MOVE:
if (!Utilities.pointInView(this, event.getX(), event.getY(), mSlop)) {
mLongPressHelper.cancelLongPress();
}
break;
}
return result;
}
void setStayPressed(boolean stayPressed) {
mStayPressed = stayPressed;
refreshDrawableState();
}
@Override
public void onLauncherResume() {
// Reset the pressed state of icon that was locked in the press state while activity
// was launching
setStayPressed(false);
}
void clearPressedBackground() {
setPressed(false);
setStayPressed(false);
}
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
// Unlike touch events, keypress event propagate pressed state change immediately,
// without waiting for onClickHandler to execute. Disable pressed state changes here
// to avoid flickering.
mIgnorePressedStateChange = true;
boolean result = super.onKeyUp(keyCode, event);
mIgnorePressedStateChange = false;
refreshDrawableState();
return result;
}
@SuppressWarnings("wrongcall")
protected void drawWithoutBadge(Canvas canvas) {
super.onDraw(canvas);
}
@Override
public void onDraw(Canvas canvas) {
super.onDraw(canvas);
drawBadgeIfNecessary(canvas);
}
/**
* Draws the icon badge in the top right corner of the icon bounds.
* @param canvas The canvas to draw to.
*/
protected void drawBadgeIfNecessary(Canvas canvas) {
if (!mForceHideBadge && (hasBadge() || mBadgeScale > 0)) {
getIconBounds(mTempIconBounds);
mTempSpaceForBadgeOffset.set((getWidth() - mIconSize) / 2, getPaddingTop());
final int scrollX = getScrollX();
final int scrollY = getScrollY();
canvas.translate(scrollX, scrollY);
mBadgeRenderer.draw(canvas, mBadgeColor, mTempIconBounds, mBadgeScale,
mTempSpaceForBadgeOffset);
canvas.translate(-scrollX, -scrollY);
}
}
public void forceHideBadge(boolean forceHideBadge) {
if (mForceHideBadge == forceHideBadge) {
return;
}
mForceHideBadge = forceHideBadge;
if (forceHideBadge) {
invalidate();
} else if (hasBadge()) {
ObjectAnimator.ofFloat(this, BADGE_SCALE_PROPERTY, 0, 1).start();
}
}
private boolean hasBadge() {
return mBadgeInfo != null;
}
public void getIconBounds(Rect outBounds) {
int top = getPaddingTop();
int left = (getWidth() - mIconSize) / 2;
int right = left + mIconSize;
int bottom = top + mIconSize;
outBounds.set(left, top, right, bottom);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
if (mCenterVertically) {
Paint.FontMetrics fm = getPaint().getFontMetrics();
int cellHeightPx = mIconSize + getCompoundDrawablePadding() +
(int) Math.ceil(fm.bottom - fm.top);
int height = MeasureSpec.getSize(heightMeasureSpec);
setPadding(getPaddingLeft(), (height - cellHeightPx) / 2, getPaddingRight(),
getPaddingBottom());
}
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
@Override
public void setTextColor(int color) {
mTextColor = color;
super.setTextColor(color);
}
@Override
public void setTextColor(ColorStateList colors) {
mTextColor = colors.getDefaultColor();
super.setTextColor(colors);
}
public boolean shouldTextBeVisible() {
// Text should be visible everywhere but the hotseat.
Object tag = getParent() instanceof FolderIcon ? ((View) getParent()).getTag() : getTag();
ItemInfo info = tag instanceof ItemInfo ? (ItemInfo) tag : null;
return info == null || info.container != LauncherSettings.Favorites.CONTAINER_HOTSEAT;
}
public void setTextVisibility(boolean visible) {
if (visible) {
super.setTextColor(mTextColor);
} else {
setTextAlpha(0);
}
}
public void setTextAlpha(int alpha) {
super.setTextColor(ColorUtils.setAlphaComponent(mTextColor, alpha));
}
private int getTextAlpha() {
return Color.alpha(getCurrentTextColor());
}
/**
* Creates an animator to fade the text in or out.
* @param fadeIn Whether the text should fade in or fade out.
*/
public ObjectAnimator createTextAlphaAnimator(boolean fadeIn) {
int toAlpha = shouldTextBeVisible() && fadeIn ? Color.alpha(mTextColor) : 0;
return ObjectAnimator.ofInt(this, TEXT_ALPHA_PROPERTY, toAlpha);
}
@Override
public void cancelLongPress() {
super.cancelLongPress();
mLongPressHelper.cancelLongPress();
}
public void applyPromiseState(boolean promiseStateChanged) {
if (getTag() instanceof ShortcutInfo) {
ShortcutInfo info = (ShortcutInfo) getTag();
final boolean isPromise = info.hasPromiseIconUi();
final int progressLevel = isPromise ?
((info.hasStatusFlag(ShortcutInfo.FLAG_INSTALL_SESSION_ACTIVE) ?
info.getInstallProgress() : 0)) : 100;
PreloadIconDrawable preloadDrawable = applyProgressLevel(progressLevel);
if (preloadDrawable != null && promiseStateChanged) {
preloadDrawable.maybePerformFinishedAnimation();
}
}
}
public PreloadIconDrawable applyProgressLevel(int progressLevel) {
if (getTag() instanceof ItemInfoWithIcon) {
ItemInfoWithIcon info = (ItemInfoWithIcon) getTag();
if (progressLevel >= 100) {
setContentDescription(info.contentDescription != null
? info.contentDescription : "");
} else if (progressLevel > 0) {
setContentDescription(getContext()
.getString(R.string.app_downloading_title, info.title,
NumberFormat.getPercentInstance().format(progressLevel * 0.01)));
} else {
setContentDescription(getContext()
.getString(R.string.app_waiting_download_title, info.title));
}
if (mIcon != null) {
final PreloadIconDrawable preloadDrawable;
if (mIcon instanceof PreloadIconDrawable) {
preloadDrawable = (PreloadIconDrawable) mIcon;
preloadDrawable.setLevel(progressLevel);
} else {
preloadDrawable = DrawableFactory.get(getContext())
.newPendingIcon(info, getContext());
preloadDrawable.setLevel(progressLevel);
setIcon(preloadDrawable);
}
return preloadDrawable;
}
}
return null;
}
public void applyBadgeState(ItemInfo itemInfo, boolean animate) {
if (mIcon instanceof FastBitmapDrawable) {
boolean wasBadged = mBadgeInfo != null;
mBadgeInfo = mActivity.getBadgeInfoForItem(itemInfo);
boolean isBadged = mBadgeInfo != null;
float newBadgeScale = isBadged ? 1f : 0;
mBadgeRenderer = mActivity.getDeviceProfile().mBadgeRenderer;
if (wasBadged || isBadged) {
// Animate when a badge is first added or when it is removed.
if (animate && (wasBadged ^ isBadged) && isShown()) {
ObjectAnimator.ofFloat(this, BADGE_SCALE_PROPERTY, newBadgeScale).start();
} else {
mBadgeScale = newBadgeScale;
invalidate();
}
}
if (itemInfo.contentDescription != null) {
if (hasBadge()) {
int count = mBadgeInfo.getNotificationCount();
setContentDescription(getContext().getResources().getQuantityString(
R.plurals.badged_app_label, count, itemInfo.contentDescription, count));
} else {
setContentDescription(itemInfo.contentDescription);
}
}
}
}
/**
* Sets the icon for this view based on the layout direction.
*/
private void setIcon(Drawable icon) {
if (mIsIconVisible) {
applyCompoundDrawables(icon);
}
mIcon = icon;
}
public void setIconVisible(boolean visible) {
mIsIconVisible = visible;
Drawable icon = visible ? mIcon : new ColorDrawable(Color.TRANSPARENT);
applyCompoundDrawables(icon);
}
protected void applyCompoundDrawables(Drawable icon) {
// If we had already set an icon before, disable relayout as the icon size is the
// same as before.
mDisableRelayout = mIcon != null;
icon.setBounds(0, 0, mIconSize, mIconSize);
if (mLayoutHorizontal) {
setCompoundDrawablesRelative(icon, null, null, null);
} else {
setCompoundDrawables(null, icon, null, null);
}
mDisableRelayout = false;
}
@Override
public void requestLayout() {
if (!mDisableRelayout) {
super.requestLayout();
}
}
/**
* Applies the item info if it is same as what the view is pointing to currently.
*/
@Override
public void reapplyItemInfo(ItemInfoWithIcon info) {
if (getTag() == info) {
mIconLoadRequest = null;
mDisableRelayout = true;
// Optimization: Starting in N, pre-uploads the bitmap to RenderThread.
info.iconBitmap.prepareToDraw();
if (info instanceof AppInfo) {
applyFromApplicationInfo((AppInfo) info);
} else if (info instanceof ShortcutInfo) {
applyFromShortcutInfo((ShortcutInfo) info);
mActivity.invalidateParent(info);
} 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;
}
}