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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.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.os.SystemService;
import android.view.LayoutInflater;
import android.view.View;
import android.view.WindowManager;
import android.widget.FrameLayout;
import com.android.systemui.R;
import com.android.systemui.recents.model.SpaceNode;
import com.android.systemui.recents.model.TaskStack;
import com.android.systemui.recents.views.RecentsView;
import java.util.ArrayList;
/* Activity */
public class RecentsActivity extends Activity implements RecentsView.RecentsViewCallbacks {
FrameLayout mContainerView;
RecentsView mRecentsView;
View mEmptyView;
boolean mVisible;
boolean mTaskLaunched;
BroadcastReceiver mServiceBroadcastReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
Console.log(Constants.DebugFlags.App.SystemUIHandshake,
"[RecentsActivity|serviceBroadcast]", action, Console.AnsiRed);
if (action.equals(RecentsService.ACTION_FINISH_RECENTS_ACTIVITY)) {
if (Constants.DebugFlags.App.EnableToggleNewRecentsActivity) {
finish();
}
} else if (action.equals(RecentsService.ACTION_TOGGLE_RECENTS_ACTIVITY)) {
// Try and unfilter and filtered stacks
if (!mRecentsView.unfilterFilteredStacks()) {
// If there are no filtered stacks, dismiss recents and launch the first task
dismissRecentsIfVisible();
}
}
}
};
/** Updates the set of recent tasks */
void updateRecentsTasks() {
RecentsTaskLoader loader = RecentsTaskLoader.getInstance();
SpaceNode root = loader.reload(this, Constants.Values.RecentsTaskLoader.PreloadFirstTasksCount);
ArrayList<TaskStack> stacks = root.getStacks();
if (!stacks.isEmpty()) {
mRecentsView.setBSP(root);
}
// Add the default no-recents layout
if (stacks.size() == 1 && stacks.get(0).getTaskCount() == 0) {
mEmptyView.setVisibility(View.VISIBLE);
// Dim the background even more
WindowManager.LayoutParams wlp = getWindow().getAttributes();
wlp.dimAmount = Constants.Values.Window.DarkBackgroundDim;
getWindow().setAttributes(wlp);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
} else {
mEmptyView.setVisibility(View.GONE);
}
}
/** Dismisses recents if we are already visible and the intent is to toggle the recents view */
boolean dismissRecentsIfVisible() {
if (mVisible) {
if (!mRecentsView.launchFirstTask()) {
finish();
}
return true;
}
return false;
}
/** Called with the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Console.logDivider(Constants.DebugFlags.App.SystemUIHandshake);
Console.log(Constants.DebugFlags.App.SystemUIHandshake, "[RecentsActivity|onCreate]",
getIntent().getAction() + " visible: " + mVisible, Console.AnsiRed);
Console.logTraceTime(Constants.DebugFlags.App.TimeRecentsStartup,
Constants.DebugFlags.App.TimeRecentsStartupKey, "onCreate");
// Initialize the loader and the configuration
RecentsTaskLoader.initialize(this);
RecentsConfiguration.reinitialize(this);
// Set the background dim
WindowManager.LayoutParams wlp = getWindow().getAttributes();
wlp.dimAmount = Constants.Values.Window.BackgroundDim;
getWindow().setAttributes(wlp);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
// Create the view hierarchy
mRecentsView = new RecentsView(this);
mRecentsView.setCallbacks(this);
mRecentsView.setLayoutParams(new FrameLayout.LayoutParams(
FrameLayout.LayoutParams.MATCH_PARENT,
FrameLayout.LayoutParams.MATCH_PARENT));
// Create the empty view
LayoutInflater inflater = LayoutInflater.from(this);
mEmptyView = inflater.inflate(R.layout.recents_empty, mContainerView, false);
mContainerView = new FrameLayout(this);
mContainerView.addView(mRecentsView);
mContainerView.addView(mEmptyView);
setContentView(mContainerView);
// Update the recent tasks
updateRecentsTasks();
}
@Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
// Reset the task launched flag if we encounter an onNewIntent() before onStop()
mTaskLaunched = false;
Console.logDivider(Constants.DebugFlags.App.SystemUIHandshake);
Console.log(Constants.DebugFlags.App.SystemUIHandshake, "[RecentsActivity|onNewIntent]",
intent.getAction() + " visible: " + mVisible, Console.AnsiRed);
Console.logTraceTime(Constants.DebugFlags.App.TimeRecentsStartup,
Constants.DebugFlags.App.TimeRecentsStartupKey, "onNewIntent");
// Initialize the loader and the configuration
RecentsTaskLoader.initialize(this);
RecentsConfiguration.reinitialize(this);
// Update the recent tasks
updateRecentsTasks();
}
@Override
protected void onStart() {
Console.log(Constants.DebugFlags.App.SystemUIHandshake, "[RecentsActivity|onStart]", "",
Console.AnsiRed);
super.onStart();
mVisible = true;
}
@Override
protected void onResume() {
Console.log(Constants.DebugFlags.App.SystemUIHandshake, "[RecentsActivity|onResume]", "",
Console.AnsiRed);
super.onResume();
// Register the broadcast receiver to handle messages from our service
IntentFilter filter = new IntentFilter();
filter.addAction(RecentsService.ACTION_TOGGLE_RECENTS_ACTIVITY);
filter.addAction(RecentsService.ACTION_FINISH_RECENTS_ACTIVITY);
registerReceiver(mServiceBroadcastReceiver, filter);
}
@Override
protected void onPause() {
Console.log(Constants.DebugFlags.App.SystemUIHandshake, "[RecentsActivity|onPause]", "",
Console.AnsiRed);
super.onPause();
// Unregister any broadcast receivers we have registered
unregisterReceiver(mServiceBroadcastReceiver);
}
@Override
protected void onStop() {
Console.log(Constants.DebugFlags.App.SystemUIHandshake, "[RecentsActivity|onStop]", "",
Console.AnsiRed);
super.onStop();
// Finish the current recents activity after we have launched a task
if (mTaskLaunched && Constants.DebugFlags.App.EnableToggleNewRecentsActivity) {
finish();
}
mVisible = false;
mTaskLaunched = false;
}
@Override
protected void onDestroy() {
Console.log(Constants.DebugFlags.App.SystemUIHandshake, "[RecentsActivity|onDestroy]", "",
Console.AnsiRed);
super.onDestroy();
}
@Override
public void onTrimMemory(int level) {
RecentsTaskLoader loader = RecentsTaskLoader.getInstance();
if (loader != null) {
loader.onTrimMemory(level);
}
}
@Override
public void onBackPressed() {
if (!mRecentsView.unfilterFilteredStacks()) {
super.onBackPressed();
}
}
@Override
public void onTaskLaunching() {
mTaskLaunched = true;
}
}
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