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/*
* Copyright (C) 2012 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.recent;
import android.app.Activity;
import android.app.ActivityManager;
import android.app.WallpaperManager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.os.UserHandle;
import android.view.MotionEvent;
import android.view.View;
import android.view.WindowManager;
import com.android.systemui.R;
import com.android.systemui.SystemUIApplication;
import com.android.systemui.statusbar.tablet.StatusBarPanel;
import java.util.List;
public class RecentsActivity extends Activity {
public static final String TOGGLE_RECENTS_INTENT = "com.android.systemui.TOGGLE_RECENTS";
public static final String CLOSE_RECENTS_INTENT = "com.android.systemui.CLOSE_RECENTS";
private static final String WAS_SHOWING = "was_showing";
private RecentsPanelView mRecentsPanel;
private IntentFilter mIntentFilter;
private boolean mShowing;
private boolean mForeground;
private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (mRecentsPanel != null && mRecentsPanel.isShowing()) {
if (mShowing && !mForeground) {
// Captures the case right before we transition to another activity
mRecentsPanel.show(false);
}
}
}
};
public static interface WindowAnimationStartListener {
void onWindowAnimationStart();
}
public class TouchOutsideListener implements View.OnTouchListener {
private StatusBarPanel mPanel;
public TouchOutsideListener(StatusBarPanel panel) {
mPanel = panel;
}
public boolean onTouch(View v, MotionEvent ev) {
final int action = ev.getAction();
if (action == MotionEvent.ACTION_OUTSIDE
|| (action == MotionEvent.ACTION_DOWN
&& !mPanel.isInContentArea((int) ev.getX(), (int) ev.getY()))) {
dismissAndGoHome();
return true;
}
return false;
}
}
@Override
public void onPause() {
overridePendingTransition(
R.anim.recents_return_to_launcher_enter,
R.anim.recents_return_to_launcher_exit);
mForeground = false;
super.onPause();
}
@Override
public void onStop() {
mShowing = false;
if (mRecentsPanel != null) {
mRecentsPanel.onUiHidden();
}
super.onStop();
}
private void updateWallpaperVisibility(boolean visible) {
int wpflags = visible ? WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER : 0;
int curflags = getWindow().getAttributes().flags
& WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER;
if (wpflags != curflags) {
getWindow().setFlags(wpflags, WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER);
}
}
@Override
public void onStart() {
// Hide wallpaper if it's not a static image
if (WallpaperManager.getInstance(this).getWallpaperInfo() != null) {
updateWallpaperVisibility(false);
} else {
updateWallpaperVisibility(true);
}
mShowing = true;
if (mRecentsPanel != null) {
mRecentsPanel.refreshViews();
}
super.onStart();
}
@Override
public void onResume() {
mForeground = true;
super.onResume();
}
@Override
public void onBackPressed() {
dismissAndGoBack();
}
public void dismissAndGoHome() {
if (mRecentsPanel != null) {
Intent homeIntent = new Intent(Intent.ACTION_MAIN, null);
homeIntent.addCategory(Intent.CATEGORY_HOME);
homeIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
| Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
startActivityAsUser(homeIntent, new UserHandle(UserHandle.USER_CURRENT));
mRecentsPanel.show(false);
}
}
public void dismissAndGoBack() {
if (mRecentsPanel != null) {
final ActivityManager am = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
final List<ActivityManager.RecentTaskInfo> recentTasks =
am.getRecentTasks(2,
ActivityManager.RECENT_WITH_EXCLUDED |
ActivityManager.RECENT_IGNORE_UNAVAILABLE);
if (recentTasks.size() > 1 &&
mRecentsPanel.simulateClick(recentTasks.get(1).persistentId)) {
// recents panel will take care of calling show(false) through simulateClick
return;
}
mRecentsPanel.show(false);
}
finish();
}
@Override
protected void onCreate(Bundle savedInstanceState) {
final SystemUIApplication app = (SystemUIApplication) getApplication();
final RecentTasksLoader recentTasksLoader = app.getRecentTasksLoader();
setContentView(R.layout.status_bar_recent_panel);
mRecentsPanel = (RecentsPanelView) findViewById(R.id.recents_root);
mRecentsPanel.setOnTouchListener(new TouchOutsideListener(mRecentsPanel));
mRecentsPanel.setRecentTasksLoader(recentTasksLoader);
recentTasksLoader.setRecentsPanel(mRecentsPanel, mRecentsPanel);
mRecentsPanel.setMinSwipeAlpha(
getResources().getInteger(R.integer.config_recent_item_min_alpha) / 100f);
if (savedInstanceState == null ||
savedInstanceState.getBoolean(WAS_SHOWING)) {
handleIntent(getIntent());
}
mIntentFilter = new IntentFilter();
mIntentFilter.addAction(CLOSE_RECENTS_INTENT);
registerReceiver(mIntentReceiver, mIntentFilter);
app.setWindowAnimationStartListener(mRecentsPanel);
super.onCreate(savedInstanceState);
}
@Override
protected void onSaveInstanceState(Bundle outState) {
outState.putBoolean(WAS_SHOWING, mRecentsPanel.isShowing());
}
@Override
protected void onDestroy() {
final SystemUIApplication app = (SystemUIApplication) getApplication();
final RecentTasksLoader recentTasksLoader = app.getRecentTasksLoader();
recentTasksLoader.setRecentsPanel(null, mRecentsPanel);
unregisterReceiver(mIntentReceiver);
app.setWindowAnimationStartListener(null);
super.onDestroy();
}
@Override
protected void onNewIntent(Intent intent) {
handleIntent(intent);
}
private void handleIntent(Intent intent) {
super.onNewIntent(intent);
if (TOGGLE_RECENTS_INTENT.equals(intent.getAction())) {
if (mRecentsPanel != null) {
if (mRecentsPanel.isShowing()) {
dismissAndGoBack();
} else {
final SystemUIApplication app = (SystemUIApplication) getApplication();
final RecentTasksLoader recentTasksLoader = app.getRecentTasksLoader();
mRecentsPanel.show(true, recentTasksLoader.getLoadedTasks(),
recentTasksLoader.isFirstScreenful());
}
}
}
}
boolean isForeground() {
return mForeground;
}
boolean isActivityShowing() {
return mShowing;
}
}
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