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/*
* Copyright (C) 2014 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.recents;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.graphics.Rect;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.os.Messenger;
import android.os.RemoteException;
import com.android.systemui.recents.model.Task;
import com.android.systemui.recents.model.TaskStack;
import com.android.systemui.recents.views.TaskStackView;
import com.android.systemui.recents.views.TaskViewTransform;
import java.lang.ref.WeakReference;
/** The message handler to process Recents SysUI messages */
class SystemUIMessageHandler extends Handler {
WeakReference<Context> mContext;
SystemUIMessageHandler(Context context) {
// Keep a weak ref to the context instead of a strong ref
mContext = new WeakReference<Context>(context);
}
@Override
public void handleMessage(Message msg) {
if (Console.Enabled) {
Console.log(Constants.Log.App.SystemUIHandshake,
"[RecentsService|handleMessage]", msg);
}
Context context = mContext.get();
if (context == null) return;
if (msg.what == AlternateRecentsComponent.MSG_UPDATE_FOR_CONFIGURATION) {
RecentsTaskLoader.initialize(context);
RecentsConfiguration config = RecentsConfiguration.reinitialize(context);
config.updateOnConfigurationChange();
try {
Bundle data = msg.getData();
Rect windowRect = data.getParcelable(AlternateRecentsComponent.KEY_WINDOW_RECT);
Rect systemInsets = data.getParcelable(AlternateRecentsComponent.KEY_SYSTEM_INSETS);
// NOTE: None of the rects computed below need to be offset for the status bar,
// since that is done when we compute the animation itself in the Recents component
// Create a dummy task stack & compute the rect for the thumbnail to animate to
TaskStack stack = new TaskStack(context);
TaskStackView tsv = new TaskStackView(context, stack);
Bundle replyData = new Bundle();
TaskViewTransform transform;
// Get the task stack and search bar bounds
Rect taskStackBounds = new Rect();
config.getTaskStackBounds(windowRect.width(), windowRect.height(), taskStackBounds);
// Calculate the target task rect for when there is one task.
// NOTE: Since the nav bar height is already accounted for in the windowRect, don't
// pass in a left or bottom inset
stack.addTask(new Task());
tsv.computeRects(taskStackBounds.width(), taskStackBounds.height() -
systemInsets.top - systemInsets.bottom, 0, 0);
tsv.boundScroll();
transform = tsv.getStackTransform(0, tsv.getStackScroll());
transform.rect.offset(taskStackBounds.left, taskStackBounds.top);
replyData.putParcelable(AlternateRecentsComponent.KEY_SINGLE_TASK_STACK_RECT,
new Rect(transform.rect));
// Also calculate the target task rect when there are multiple tasks.
stack.addTask(new Task());
tsv.computeRects(taskStackBounds.width(), taskStackBounds.height() -
systemInsets.top - systemInsets.bottom, 0, 0);
tsv.setStackScrollRaw(Integer.MAX_VALUE);
tsv.boundScroll();
transform = tsv.getStackTransform(1, tsv.getStackScroll());
transform.rect.offset(taskStackBounds.left, taskStackBounds.top);
replyData.putParcelable(AlternateRecentsComponent.KEY_MULTIPLE_TASK_STACK_RECT,
new Rect(transform.rect));
data.putParcelable(AlternateRecentsComponent.KEY_CONFIGURATION_DATA, replyData);
Message reply = Message.obtain(null,
AlternateRecentsComponent.MSG_UPDATE_FOR_CONFIGURATION, 0, 0);
reply.setData(data);
msg.replyTo.send(reply);
} catch (RemoteException re) {
re.printStackTrace();
}
} else if (msg.what == AlternateRecentsComponent.MSG_HIDE_RECENTS) {
// Send a broadcast to hide recents
Intent intent = new Intent(RecentsService.ACTION_HIDE_RECENTS_ACTIVITY);
intent.setPackage(context.getPackageName());
if (msg.arg1 != 0) {
intent.putExtra(RecentsService.EXTRA_TRIGGERED_FROM_ALT_TAB, true);
}
context.sendBroadcast(intent);
} else if (msg.what == AlternateRecentsComponent.MSG_TOGGLE_RECENTS) {
// Send a broadcast to toggle recents
Intent intent = new Intent(RecentsService.ACTION_TOGGLE_RECENTS_ACTIVITY);
intent.setPackage(context.getPackageName());
context.sendBroadcast(intent);
// Time this path
Console.logTraceTime(Constants.Log.App.TimeRecentsStartup,
Constants.Log.App.TimeRecentsStartupKey, "receivedToggleRecents");
Console.logTraceTime(Constants.Log.App.TimeRecentsLaunchTask,
Constants.Log.App.TimeRecentsLaunchKey, "receivedToggleRecents");
} else if (msg.what == AlternateRecentsComponent.MSG_START_ENTER_ANIMATION) {
// Send a broadcast to start the enter animation
Intent intent = new Intent(RecentsService.ACTION_START_ENTER_ANIMATION);
intent.setPackage(context.getPackageName());
context.sendBroadcast(intent);
}
}
}
/* Service */
public class RecentsService extends Service {
final static String ACTION_HIDE_RECENTS_ACTIVITY = "action_hide_recents_activity";
final static String ACTION_TOGGLE_RECENTS_ACTIVITY = "action_toggle_recents_activity";
final static String ACTION_START_ENTER_ANIMATION = "action_start_enter_animation";
final static String EXTRA_TRIGGERED_FROM_ALT_TAB = "extra_triggered_from_alt_tab";
Messenger mSystemUIMessenger = new Messenger(new SystemUIMessageHandler(this));
@Override
public void onCreate() {
if (Console.Enabled) {
Console.log(Constants.Log.App.SystemUIHandshake, "[RecentsService|onCreate]");
}
super.onCreate();
}
@Override
public IBinder onBind(Intent intent) {
if (Console.Enabled) {
Console.log(Constants.Log.App.SystemUIHandshake, "[RecentsService|onBind]");
}
return mSystemUIMessenger.getBinder();
}
@Override
public boolean onUnbind(Intent intent) {
if (Console.Enabled) {
Console.log(Constants.Log.App.SystemUIHandshake, "[RecentsService|onUnbind]");
}
return super.onUnbind(intent);
}
@Override
public void onRebind(Intent intent) {
if (Console.Enabled) {
Console.log(Constants.Log.App.SystemUIHandshake, "[RecentsService|onRebind]");
}
super.onRebind(intent);
}
@Override
public void onDestroy() {
if (Console.Enabled) {
Console.log(Constants.Log.App.SystemUIHandshake, "[RecentsService|onDestroy]");
}
super.onDestroy();
}
@Override
public void onTrimMemory(int level) {
RecentsTaskLoader loader = RecentsTaskLoader.getInstance();
if (loader != null) {
loader.onTrimMemory(level);
}
}
}
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