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Diffstat (limited to 'com/android/systemui/shared/recents/model/BackgroundTaskLoader.java')
-rw-r--r--com/android/systemui/shared/recents/model/BackgroundTaskLoader.java186
1 files changed, 0 insertions, 186 deletions
diff --git a/com/android/systemui/shared/recents/model/BackgroundTaskLoader.java b/com/android/systemui/shared/recents/model/BackgroundTaskLoader.java
deleted file mode 100644
index ddd27b0b..00000000
--- a/com/android/systemui/shared/recents/model/BackgroundTaskLoader.java
+++ /dev/null
@@ -1,186 +0,0 @@
-/*
- * Copyright (C) 2017 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.shared.recents.model;
-
-import android.content.Context;
-import android.content.pm.ActivityInfo;
-import android.graphics.drawable.BitmapDrawable;
-import android.graphics.drawable.Drawable;
-import android.os.Handler;
-import android.os.HandlerThread;
-import android.util.Log;
-
-import com.android.systemui.shared.system.ActivityManagerWrapper;
-import com.android.systemui.shared.system.PackageManagerWrapper;
-
-/**
- * Background task resource loader
- */
-class BackgroundTaskLoader implements Runnable {
- static String TAG = "BackgroundTaskLoader";
- static boolean DEBUG = false;
-
- private Context mContext;
- private final HandlerThread mLoadThread;
- private final Handler mLoadThreadHandler;
- private final Handler mMainThreadHandler;
-
- private final TaskResourceLoadQueue mLoadQueue;
- private final TaskKeyLruCache<Drawable> mIconCache;
- private final BitmapDrawable mDefaultIcon;
-
- private boolean mStarted;
- private boolean mCancelled;
- private boolean mWaitingOnLoadQueue;
-
- private final OnIdleChangedListener mOnIdleChangedListener;
-
- /** Constructor, creates a new loading thread that loads task resources in the background */
- public BackgroundTaskLoader(TaskResourceLoadQueue loadQueue,
- TaskKeyLruCache<Drawable> iconCache, BitmapDrawable defaultIcon,
- OnIdleChangedListener onIdleChangedListener) {
- mLoadQueue = loadQueue;
- mIconCache = iconCache;
- mDefaultIcon = defaultIcon;
- mMainThreadHandler = new Handler();
- mOnIdleChangedListener = onIdleChangedListener;
- mLoadThread = new HandlerThread("Recents-TaskResourceLoader",
- android.os.Process.THREAD_PRIORITY_BACKGROUND);
- mLoadThread.start();
- mLoadThreadHandler = new Handler(mLoadThread.getLooper());
- }
-
- /** Restarts the loader thread */
- void start(Context context) {
- mContext = context;
- mCancelled = false;
- if (!mStarted) {
- // Start loading on the load thread
- mStarted = true;
- mLoadThreadHandler.post(this);
- } else {
- // Notify the load thread to start loading again
- synchronized (mLoadThread) {
- mLoadThread.notifyAll();
- }
- }
- }
-
- /** Requests the loader thread to stop after the current iteration */
- void stop() {
- // Mark as cancelled for the thread to pick up
- mCancelled = true;
- // If we are waiting for the load queue for more tasks, then we can just reset the
- // Context now, since nothing is using it
- if (mWaitingOnLoadQueue) {
- mContext = null;
- }
- }
-
- @Override
- public void run() {
- while (true) {
- if (mCancelled) {
- // We have to unset the context here, since the background thread may be using it
- // when we call stop()
- mContext = null;
- // If we are cancelled, then wait until we are started again
- synchronized(mLoadThread) {
- try {
- mLoadThread.wait();
- } catch (InterruptedException ie) {
- ie.printStackTrace();
- }
- }
- } else {
- // If we've stopped the loader, then fall through to the above logic to wait on
- // the load thread
- processLoadQueueItem();
-
- // If there are no other items in the list, then just wait until something is added
- if (!mCancelled && mLoadQueue.isEmpty()) {
- synchronized(mLoadQueue) {
- try {
- mWaitingOnLoadQueue = true;
- mMainThreadHandler.post(
- () -> mOnIdleChangedListener.onIdleChanged(true));
- mLoadQueue.wait();
- mMainThreadHandler.post(
- () -> mOnIdleChangedListener.onIdleChanged(false));
- mWaitingOnLoadQueue = false;
- } catch (InterruptedException ie) {
- ie.printStackTrace();
- }
- }
- }
- }
- }
- }
-
- /**
- * This needs to be in a separate method to work around an surprising interpreter behavior:
- * The register will keep the local reference to cachedThumbnailData even if it falls out of
- * scope. Putting it into a method fixes this issue.
- */
- private void processLoadQueueItem() {
- // Load the next item from the queue
- final Task t = mLoadQueue.nextTask();
- if (t != null) {
- Drawable cachedIcon = mIconCache.get(t.key);
-
- // Load the icon if it is stale or we haven't cached one yet
- if (cachedIcon == null) {
- cachedIcon = ActivityManagerWrapper.getInstance().getBadgedTaskDescriptionIcon(
- mContext, t.taskDescription, t.key.userId, mContext.getResources());
-
- if (cachedIcon == null) {
- ActivityInfo info = PackageManagerWrapper.getInstance().getActivityInfo(
- t.key.getComponent(), t.key.userId);
- if (info != null) {
- if (DEBUG) Log.d(TAG, "Loading icon: " + t.key);
- cachedIcon = ActivityManagerWrapper.getInstance().getBadgedActivityIcon(
- info, t.key.userId);
- }
- }
-
- if (cachedIcon == null) {
- cachedIcon = mDefaultIcon;
- }
-
- // At this point, even if we can't load the icon, we will set the
- // default icon.
- mIconCache.put(t.key, cachedIcon);
- }
-
- if (DEBUG) Log.d(TAG, "Loading thumbnail: " + t.key);
- final ThumbnailData thumbnailData =
- ActivityManagerWrapper.getInstance().getTaskThumbnail(t.key.id,
- true /* reducedResolution */);
-
- if (!mCancelled) {
- // Notify that the task data has changed
- final Drawable finalIcon = cachedIcon;
- mMainThreadHandler.post(
- () -> t.notifyTaskDataLoaded(thumbnailData, finalIcon));
- }
- }
- }
-
- interface OnIdleChangedListener {
- void onIdleChanged(boolean idle);
- }
-}