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/*
* Copyright (C) 2019 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.icons;
import static com.android.launcher3.icons.ThemedIconDrawable.getColors;
import android.annotation.TargetApi;
import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.ColorFilter;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.PorterDuff.Mode;
import android.graphics.PorterDuffColorFilter;
import android.graphics.Rect;
import android.graphics.drawable.AdaptiveIconDrawable;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.LayerDrawable;
import android.os.Build;
import android.os.Bundle;
import android.os.Process;
import android.os.SystemClock;
import android.os.UserHandle;
import android.util.Log;
import android.util.TypedValue;
import androidx.annotation.Nullable;
import com.android.launcher3.icons.ThemedIconDrawable.ThemeData;
import java.util.Calendar;
import java.util.concurrent.TimeUnit;
import java.util.function.IntFunction;
/**
* Wrapper over {@link AdaptiveIconDrawable} to intercept icon flattening logic for dynamic
* clock icons
*/
@TargetApi(Build.VERSION_CODES.O)
public class ClockDrawableWrapper extends AdaptiveIconDrawable implements BitmapInfo.Extender {
private static final String TAG = "ClockDrawableWrapper";
private static final boolean DISABLE_SECONDS = true;
// Time after which the clock icon should check for an update. The actual invalidate
// will only happen in case of any change.
public static final long TICK_MS = DISABLE_SECONDS ? TimeUnit.MINUTES.toMillis(1) : 200L;
private static final String LAUNCHER_PACKAGE = "com.android.launcher3";
private static final String ROUND_ICON_METADATA_KEY = LAUNCHER_PACKAGE
+ ".LEVEL_PER_TICK_ICON_ROUND";
private static final String HOUR_INDEX_METADATA_KEY = LAUNCHER_PACKAGE + ".HOUR_LAYER_INDEX";
private static final String MINUTE_INDEX_METADATA_KEY = LAUNCHER_PACKAGE
+ ".MINUTE_LAYER_INDEX";
private static final String SECOND_INDEX_METADATA_KEY = LAUNCHER_PACKAGE
+ ".SECOND_LAYER_INDEX";
private static final String DEFAULT_HOUR_METADATA_KEY = LAUNCHER_PACKAGE
+ ".DEFAULT_HOUR";
private static final String DEFAULT_MINUTE_METADATA_KEY = LAUNCHER_PACKAGE
+ ".DEFAULT_MINUTE";
private static final String DEFAULT_SECOND_METADATA_KEY = LAUNCHER_PACKAGE
+ ".DEFAULT_SECOND";
/* Number of levels to jump per second for the second hand */
private static final int LEVELS_PER_SECOND = 10;
public static final int INVALID_VALUE = -1;
private final AnimationInfo mAnimationInfo = new AnimationInfo();
private int mTargetSdkVersion;
protected ThemeData mThemeData;
public ClockDrawableWrapper(AdaptiveIconDrawable base) {
super(base.getBackground(), base.getForeground());
}
/**
* Loads and returns the wrapper from the provided package, or returns null
* if it is unable to load.
*/
public static ClockDrawableWrapper forPackage(Context context, String pkg, int iconDpi) {
try {
PackageManager pm = context.getPackageManager();
ApplicationInfo appInfo = pm.getApplicationInfo(pkg,
PackageManager.MATCH_UNINSTALLED_PACKAGES | PackageManager.GET_META_DATA);
Resources res = pm.getResourcesForApplication(appInfo);
return forExtras(appInfo, appInfo.metaData,
resId -> res.getDrawableForDensity(resId, iconDpi));
} catch (Exception e) {
Log.d(TAG, "Unable to load clock drawable info", e);
}
return null;
}
private static ClockDrawableWrapper fromThemeData(Context context, ThemeData themeData) {
try {
TypedArray ta = themeData.mResources.obtainTypedArray(themeData.mResID);
int count = ta.length();
Bundle extras = new Bundle();
for (int i = 0; i < count; i += 2) {
TypedValue v = ta.peekValue(i + 1);
extras.putInt(ta.getString(i), v.type >= TypedValue.TYPE_FIRST_INT
&& v.type <= TypedValue.TYPE_LAST_INT
? v.data : v.resourceId);
}
ta.recycle();
ClockDrawableWrapper drawable = ClockDrawableWrapper.forExtras(
context.getApplicationInfo(), extras, resId -> {
int[] colors = getColors(context);
Drawable bg = new ColorDrawable(colors[0]);
Drawable fg = themeData.mResources.getDrawable(resId).mutate();
fg.setTint(colors[1]);
return new AdaptiveIconDrawable(bg, fg);
});
if (drawable != null) {
return drawable;
}
} catch (Exception e) {
Log.e(TAG, "Error loading themed clock", e);
}
return null;
}
private static ClockDrawableWrapper forExtras(ApplicationInfo appInfo, Bundle metadata,
IntFunction<Drawable> drawableProvider) {
if (metadata == null) {
return null;
}
int drawableId = metadata.getInt(ROUND_ICON_METADATA_KEY, 0);
if (drawableId == 0) {
return null;
}
Drawable drawable = drawableProvider.apply(drawableId).mutate();
if (!(drawable instanceof AdaptiveIconDrawable)) {
return null;
}
ClockDrawableWrapper wrapper =
new ClockDrawableWrapper((AdaptiveIconDrawable) drawable);
wrapper.mTargetSdkVersion = appInfo.targetSdkVersion;
AnimationInfo info = wrapper.mAnimationInfo;
info.baseDrawableState = drawable.getConstantState();
info.hourLayerIndex = metadata.getInt(HOUR_INDEX_METADATA_KEY, INVALID_VALUE);
info.minuteLayerIndex = metadata.getInt(MINUTE_INDEX_METADATA_KEY, INVALID_VALUE);
info.secondLayerIndex = metadata.getInt(SECOND_INDEX_METADATA_KEY, INVALID_VALUE);
info.defaultHour = metadata.getInt(DEFAULT_HOUR_METADATA_KEY, 0);
info.defaultMinute = metadata.getInt(DEFAULT_MINUTE_METADATA_KEY, 0);
info.defaultSecond = metadata.getInt(DEFAULT_SECOND_METADATA_KEY, 0);
LayerDrawable foreground = (LayerDrawable) wrapper.getForeground();
int layerCount = foreground.getNumberOfLayers();
if (info.hourLayerIndex < 0 || info.hourLayerIndex >= layerCount) {
info.hourLayerIndex = INVALID_VALUE;
}
if (info.minuteLayerIndex < 0 || info.minuteLayerIndex >= layerCount) {
info.minuteLayerIndex = INVALID_VALUE;
}
if (info.secondLayerIndex < 0 || info.secondLayerIndex >= layerCount) {
info.secondLayerIndex = INVALID_VALUE;
} else if (DISABLE_SECONDS) {
foreground.setDrawable(info.secondLayerIndex, null);
info.secondLayerIndex = INVALID_VALUE;
}
info.applyTime(Calendar.getInstance(), foreground);
return wrapper;
}
@Override
public ClockBitmapInfo getExtendedInfo(Bitmap bitmap, int color,
BaseIconFactory iconFactory, float normalizationScale, UserHandle user) {
iconFactory.disableColorExtraction();
AdaptiveIconDrawable background = new AdaptiveIconDrawable(
getBackground().getConstantState().newDrawable(), null);
BitmapInfo bitmapInfo = iconFactory.createBadgedIconBitmap(background,
Process.myUserHandle(), mTargetSdkVersion, false);
return new ClockBitmapInfo(bitmap, color, normalizationScale,
mAnimationInfo, bitmapInfo.icon, mThemeData);
}
@Override
public void drawForPersistence(Canvas canvas) {
LayerDrawable foreground = (LayerDrawable) getForeground();
resetLevel(foreground, mAnimationInfo.hourLayerIndex);
resetLevel(foreground, mAnimationInfo.minuteLayerIndex);
resetLevel(foreground, mAnimationInfo.secondLayerIndex);
draw(canvas);
mAnimationInfo.applyTime(Calendar.getInstance(), (LayerDrawable) getForeground());
}
@Override
public Drawable getThemedDrawable(Context context) {
if (mThemeData != null) {
ClockDrawableWrapper drawable = fromThemeData(context, mThemeData);
return drawable == null ? this : drawable;
}
return this;
}
private void resetLevel(LayerDrawable drawable, int index) {
if (index != INVALID_VALUE) {
drawable.getDrawable(index).setLevel(0);
}
}
private static class AnimationInfo {
public ConstantState baseDrawableState;
public int hourLayerIndex;
public int minuteLayerIndex;
public int secondLayerIndex;
public int defaultHour;
public int defaultMinute;
public int defaultSecond;
boolean applyTime(Calendar time, LayerDrawable foregroundDrawable) {
time.setTimeInMillis(System.currentTimeMillis());
// We need to rotate by the difference from the default time if one is specified.
int convertedHour = (time.get(Calendar.HOUR) + (12 - defaultHour)) % 12;
int convertedMinute = (time.get(Calendar.MINUTE) + (60 - defaultMinute)) % 60;
int convertedSecond = (time.get(Calendar.SECOND) + (60 - defaultSecond)) % 60;
boolean invalidate = false;
if (hourLayerIndex != INVALID_VALUE) {
final Drawable hour = foregroundDrawable.getDrawable(hourLayerIndex);
if (hour.setLevel(convertedHour * 60 + time.get(Calendar.MINUTE))) {
invalidate = true;
}
}
if (minuteLayerIndex != INVALID_VALUE) {
final Drawable minute = foregroundDrawable.getDrawable(minuteLayerIndex);
if (minute.setLevel(time.get(Calendar.HOUR) * 60 + convertedMinute)) {
invalidate = true;
}
}
if (secondLayerIndex != INVALID_VALUE) {
final Drawable second = foregroundDrawable.getDrawable(secondLayerIndex);
if (second.setLevel(convertedSecond * LEVELS_PER_SECOND)) {
invalidate = true;
}
}
return invalidate;
}
}
static class ClockBitmapInfo extends BitmapInfo {
public final float scale;
public final int offset;
public final AnimationInfo animInfo;
public final Bitmap mFlattenedBackground;
public final ThemeData themeData;
public final ColorFilter bgFilter;
ClockBitmapInfo(Bitmap icon, int color, float scale, AnimationInfo animInfo,
Bitmap background, ThemeData themeData) {
this(icon, color, scale, animInfo, background, themeData, null);
}
ClockBitmapInfo(Bitmap icon, int color, float scale, AnimationInfo animInfo,
Bitmap background, ThemeData themeData, ColorFilter bgFilter) {
super(icon, color);
this.scale = scale;
this.animInfo = animInfo;
this.offset = (int) Math.ceil(ShadowGenerator.BLUR_FACTOR * icon.getWidth());
this.mFlattenedBackground = background;
this.themeData = themeData;
this.bgFilter = bgFilter;
}
@Override
public FastBitmapDrawable newThemedIcon(Context context) {
if (themeData != null) {
ClockDrawableWrapper wrapper = fromThemeData(context, themeData);
if (wrapper != null) {
int[] colors = getColors(context);
ColorFilter bgFilter = new PorterDuffColorFilter(colors[0], Mode.SRC_ATOP);
return new ClockBitmapInfo(icon, colors[1], scale,
wrapper.mAnimationInfo, mFlattenedBackground, themeData, bgFilter)
.newIcon(context);
}
}
return super.newThemedIcon(context);
}
@Override
public FastBitmapDrawable newIcon(Context context) {
ClockIconDrawable d = new ClockIconDrawable(this);
d.mDisabledAlpha = GraphicsUtils.getFloat(context, R.attr.disabledIconAlpha, 1f);
return d;
}
@Nullable
@Override
public byte[] toByteArray() {
return null;
}
void drawBackground(Canvas canvas, Rect bounds, Paint paint) {
// draw the background that is already flattened to a bitmap
ColorFilter oldFilter = paint.getColorFilter();
if (bgFilter != null) {
paint.setColorFilter(bgFilter);
}
canvas.drawBitmap(mFlattenedBackground, null, bounds, paint);
paint.setColorFilter(oldFilter);
}
}
private static class ClockIconDrawable extends FastBitmapDrawable implements Runnable {
private final Calendar mTime = Calendar.getInstance();
private final ClockBitmapInfo mInfo;
private final AdaptiveIconDrawable mFullDrawable;
private final LayerDrawable mForeground;
ClockIconDrawable(ClockBitmapInfo clockInfo) {
super(clockInfo);
mInfo = clockInfo;
mFullDrawable = (AdaptiveIconDrawable) mInfo.animInfo.baseDrawableState
.newDrawable().mutate();
mForeground = (LayerDrawable) mFullDrawable.getForeground();
}
@Override
protected void onBoundsChange(Rect bounds) {
super.onBoundsChange(bounds);
mFullDrawable.setBounds(bounds);
}
@Override
public void drawInternal(Canvas canvas, Rect bounds) {
if (mInfo == null) {
super.drawInternal(canvas, bounds);
return;
}
mInfo.drawBackground(canvas, bounds, mPaint);
// prepare and draw the foreground
mInfo.animInfo.applyTime(mTime, mForeground);
canvas.scale(mInfo.scale, mInfo.scale,
bounds.exactCenterX() + mInfo.offset, bounds.exactCenterY() + mInfo.offset);
canvas.clipPath(mFullDrawable.getIconMask());
mForeground.draw(canvas);
reschedule();
}
@Override
public boolean isThemed() {
return mInfo.bgFilter != null;
}
@Override
protected void updateFilter() {
super.updateFilter();
mFullDrawable.setColorFilter(mPaint.getColorFilter());
}
@Override
public void run() {
if (mInfo.animInfo.applyTime(mTime, mForeground)) {
invalidateSelf();
} else {
reschedule();
}
}
@Override
public boolean setVisible(boolean visible, boolean restart) {
boolean result = super.setVisible(visible, restart);
if (visible) {
reschedule();
} else {
unscheduleSelf(this);
}
return result;
}
private void reschedule() {
if (!isVisible()) {
return;
}
unscheduleSelf(this);
final long upTime = SystemClock.uptimeMillis();
final long step = TICK_MS; /* tick every 200 ms */
scheduleSelf(this, upTime - ((upTime % step)) + step);
}
@Override
public ConstantState getConstantState() {
return new ClockConstantState(mInfo, isDisabled());
}
private static class ClockConstantState extends FastBitmapConstantState {
private final ClockBitmapInfo mInfo;
ClockConstantState(ClockBitmapInfo info, boolean isDisabled) {
super(info.icon, info.color, isDisabled);
mInfo = info;
}
@Override
public FastBitmapDrawable newDrawable() {
ClockIconDrawable drawable = new ClockIconDrawable(mInfo);
drawable.setIsDisabled(mIsDisabled);
return drawable;
}
}
}
}