| /* |
| * 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.appwidget.AppWidgetHost; |
| import android.appwidget.AppWidgetHostView; |
| import android.appwidget.AppWidgetManager; |
| import android.appwidget.AppWidgetProviderInfo; |
| import android.content.BroadcastReceiver; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.res.Configuration; |
| import android.os.Bundle; |
| import android.util.Pair; |
| import android.view.Gravity; |
| import android.view.KeyEvent; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| 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; |
| import java.util.Set; |
| |
| /** Our special app widget host */ |
| class RecentsAppWidgetHost extends AppWidgetHost { |
| /* Callbacks to notify when an app package changes */ |
| interface RecentsAppWidgetHostCallbacks { |
| public void onProviderChanged(int appWidgetId, AppWidgetProviderInfo appWidgetInfo); |
| } |
| |
| RecentsAppWidgetHostCallbacks mCb; |
| |
| public RecentsAppWidgetHost(Context context, int hostId, RecentsAppWidgetHostCallbacks cb) { |
| super(context, hostId); |
| mCb = cb; |
| } |
| |
| @Override |
| protected void onProviderChanged(int appWidgetId, AppWidgetProviderInfo appWidget) { |
| mCb.onProviderChanged(appWidgetId, appWidget); |
| } |
| } |
| |
| /* Activity */ |
| public class RecentsActivity extends Activity implements RecentsView.RecentsViewCallbacks, |
| RecentsAppWidgetHost.RecentsAppWidgetHostCallbacks { |
| FrameLayout mContainerView; |
| RecentsView mRecentsView; |
| View mEmptyView; |
| View mNavBarScrimView; |
| |
| AppWidgetHost mAppWidgetHost; |
| AppWidgetProviderInfo mSearchAppWidgetInfo; |
| AppWidgetHostView mSearchAppWidgetHostView; |
| |
| boolean mVisible; |
| boolean mTaskLaunched; |
| |
| // Broadcast receiver to handle messages from our RecentsService |
| BroadcastReceiver mServiceBroadcastReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| String action = intent.getAction(); |
| if (Console.Enabled) { |
| Console.log(Constants.Log.App.SystemUIHandshake, |
| "[RecentsActivity|serviceBroadcast]", action, Console.AnsiRed); |
| } |
| if (action.equals(RecentsService.ACTION_HIDE_RECENTS_ACTIVITY)) { |
| if (intent.getBooleanExtra(RecentsService.EXTRA_TRIGGERED_FROM_ALT_TAB, false)) { |
| // Dismiss recents, launching the focused task |
| dismissRecentsIfVisible(); |
| } else { |
| // Otherwise, just finish the activity without launching any other activities |
| 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(); |
| } |
| } else if (action.equals(RecentsService.ACTION_START_ENTER_ANIMATION)) { |
| // Try and start the enter animation (or restart it on configuration changed) |
| mRecentsView.startOnEnterAnimation(); |
| } |
| } |
| }; |
| |
| // Broadcast receiver to handle messages from the system |
| BroadcastReceiver mScreenOffReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| finish(); |
| } |
| }; |
| |
| /** Updates the set of recent tasks */ |
| void updateRecentsTasks(Intent launchIntent) { |
| // Update the configuration based on the launch intent |
| RecentsConfiguration config = RecentsConfiguration.getInstance(); |
| config.launchedWithThumbnailAnimation = launchIntent.getBooleanExtra( |
| AlternateRecentsComponent.EXTRA_ANIMATING_WITH_THUMBNAIL, false); |
| config.launchedFromAltTab = launchIntent.getBooleanExtra( |
| AlternateRecentsComponent.EXTRA_FROM_ALT_TAB, false); |
| |
| RecentsTaskLoader loader = RecentsTaskLoader.getInstance(); |
| SpaceNode root = loader.reload(this, Constants.Values.RecentsTaskLoader.PreloadFirstTasksCount); |
| ArrayList<TaskStack> stacks = root.getStacks(); |
| if (!stacks.isEmpty()) { |
| mRecentsView.setBSP(root); |
| } |
| |
| // Hide the scrim by default when we enter recents |
| mNavBarScrimView.setVisibility(View.INVISIBLE); |
| |
| // 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); |
| |
| // Un-dim the background |
| WindowManager.LayoutParams wlp = getWindow().getAttributes(); |
| wlp.dimAmount = 0f; |
| getWindow().setAttributes(wlp); |
| getWindow().addFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND); |
| } |
| } |
| |
| /** Attempts to allocate and bind the search bar app widget */ |
| void bindSearchBarAppWidget() { |
| if (Constants.DebugFlags.App.EnableSearchLayout) { |
| RecentsConfiguration config = RecentsConfiguration.getInstance(); |
| SystemServicesProxy ssp = RecentsTaskLoader.getInstance().getSystemServicesProxy(); |
| |
| // Reset the host view and widget info |
| mSearchAppWidgetHostView = null; |
| mSearchAppWidgetInfo = null; |
| |
| // Try and load the app widget id from the settings |
| int appWidgetId = config.searchBarAppWidgetId; |
| if (appWidgetId >= 0) { |
| mSearchAppWidgetInfo = ssp.getAppWidgetInfo(appWidgetId); |
| if (mSearchAppWidgetInfo == null) { |
| // If there is no actual widget associated with that id, then delete it and |
| // prepare to bind another app widget in its place |
| ssp.unbindSearchAppWidget(mAppWidgetHost, appWidgetId); |
| appWidgetId = -1; |
| } |
| if (Console.Enabled) { |
| Console.log(Constants.Log.App.SystemUIHandshake, |
| "[RecentsActivity|onCreate|settings|appWidgetId]", |
| "Id: " + appWidgetId, |
| Console.AnsiBlue); |
| } |
| } |
| |
| // If there is no id, then bind a new search app widget |
| if (appWidgetId < 0) { |
| Pair<Integer, AppWidgetProviderInfo> widgetInfo = |
| ssp.bindSearchAppWidget(mAppWidgetHost); |
| if (widgetInfo != null) { |
| if (Console.Enabled) { |
| Console.log(Constants.Log.App.SystemUIHandshake, |
| "[RecentsActivity|onCreate|searchWidget]", |
| "Id: " + widgetInfo.first + " Info: " + widgetInfo.second, |
| Console.AnsiBlue); |
| } |
| |
| // Save the app widget id into the settings |
| config.updateSearchBarAppWidgetId(this, widgetInfo.first); |
| mSearchAppWidgetInfo = widgetInfo.second; |
| } |
| } |
| } |
| } |
| |
| /** Creates the search bar app widget view */ |
| void addSearchBarAppWidgetView() { |
| if (Constants.DebugFlags.App.EnableSearchLayout) { |
| RecentsConfiguration config = RecentsConfiguration.getInstance(); |
| int appWidgetId = config.searchBarAppWidgetId; |
| if (appWidgetId >= 0) { |
| if (Console.Enabled) { |
| Console.log(Constants.Log.App.SystemUIHandshake, |
| "[RecentsActivity|onCreate|addSearchAppWidgetView]", |
| "Id: " + appWidgetId, |
| Console.AnsiBlue); |
| } |
| mSearchAppWidgetHostView = mAppWidgetHost.createView(this, appWidgetId, |
| mSearchAppWidgetInfo); |
| Bundle opts = new Bundle(); |
| opts.putInt(AppWidgetManager.OPTION_APPWIDGET_HOST_CATEGORY, |
| AppWidgetProviderInfo.WIDGET_CATEGORY_RECENTS); |
| mSearchAppWidgetHostView.updateAppWidgetOptions(opts); |
| // Set the padding to 0 for this search widget |
| mSearchAppWidgetHostView.setPadding(0, 0, 0, 0); |
| mRecentsView.setSearchBar(mSearchAppWidgetHostView); |
| } else { |
| mRecentsView.setSearchBar(null); |
| } |
| } |
| } |
| |
| /** Dismisses recents if we are already visible and the intent is to toggle the recents view */ |
| boolean dismissRecentsIfVisible() { |
| if (mVisible) { |
| if (!mRecentsView.launchFocusedTask()) { |
| if (!mRecentsView.launchFirstTask()) { |
| finish(); |
| } |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| /** Called with the activity is first created. */ |
| @Override |
| public void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| if (Console.Enabled) { |
| Console.logDivider(Constants.Log.App.SystemUIHandshake); |
| Console.log(Constants.Log.App.SystemUIHandshake, "[RecentsActivity|onCreate]", |
| getIntent().getAction() + " visible: " + mVisible, Console.AnsiRed); |
| Console.logTraceTime(Constants.Log.App.TimeRecentsStartup, |
| Constants.Log.App.TimeRecentsStartupKey, "onCreate"); |
| } |
| |
| // Initialize the loader and the configuration |
| RecentsTaskLoader.initialize(this); |
| RecentsConfiguration.reinitialize(this); |
| |
| // Initialize the widget host (the host id is static and does not change) |
| mAppWidgetHost = new RecentsAppWidgetHost(this, Constants.Values.App.AppWidgetHostId, this); |
| |
| // Create the view hierarchy |
| mRecentsView = new RecentsView(this); |
| mRecentsView.setCallbacks(this); |
| mRecentsView.setLayoutParams(new FrameLayout.LayoutParams( |
| FrameLayout.LayoutParams.MATCH_PARENT, |
| FrameLayout.LayoutParams.MATCH_PARENT)); |
| mRecentsView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE | |
| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | |
| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION); |
| |
| // Create the empty view |
| LayoutInflater inflater = LayoutInflater.from(this); |
| mEmptyView = inflater.inflate(R.layout.recents_empty, mContainerView, false); |
| mNavBarScrimView = inflater.inflate(R.layout.recents_nav_bar_scrim, mContainerView, false); |
| |
| mContainerView = new FrameLayout(this); |
| mContainerView.addView(mRecentsView); |
| mContainerView.addView(mEmptyView); |
| mContainerView.addView(mNavBarScrimView); |
| setContentView(mContainerView); |
| |
| // Update the recent tasks |
| updateRecentsTasks(getIntent()); |
| |
| // Bind the search app widget when we first start up |
| bindSearchBarAppWidget(); |
| // Add the search bar layout |
| addSearchBarAppWidgetView(); |
| |
| // Update if we are getting a configuration change |
| if (savedInstanceState != null) { |
| onConfigurationChange(); |
| } |
| } |
| |
| void onConfigurationChange() { |
| // Try and start the enter animation (or restart it on configuration changed) |
| mRecentsView.startOnEnterAnimation(); |
| } |
| |
| @Override |
| protected void onNewIntent(Intent intent) { |
| super.onNewIntent(intent); |
| // Reset the task launched flag if we encounter an onNewIntent() before onStop() |
| mTaskLaunched = false; |
| |
| if (Console.Enabled) { |
| Console.logDivider(Constants.Log.App.SystemUIHandshake); |
| Console.log(Constants.Log.App.SystemUIHandshake, "[RecentsActivity|onNewIntent]", |
| intent.getAction() + " visible: " + mVisible, Console.AnsiRed); |
| Console.logTraceTime(Constants.Log.App.TimeRecentsStartup, |
| Constants.Log.App.TimeRecentsStartupKey, "onNewIntent"); |
| } |
| |
| // Initialize the loader and the configuration |
| RecentsTaskLoader.initialize(this); |
| RecentsConfiguration.reinitialize(this); |
| |
| // Update the recent tasks |
| updateRecentsTasks(intent); |
| |
| // Don't attempt to rebind the search bar widget, but just add the search bar layout |
| addSearchBarAppWidgetView(); |
| } |
| |
| @Override |
| protected void onStart() { |
| if (Console.Enabled) { |
| Console.log(Constants.Log.App.SystemUIHandshake, "[RecentsActivity|onStart]", "", |
| Console.AnsiRed); |
| } |
| super.onStart(); |
| |
| // Start listening for widget package changes if there is one bound |
| RecentsConfiguration config = RecentsConfiguration.getInstance(); |
| if (config.searchBarAppWidgetId >= 0) { |
| mAppWidgetHost.startListening(); |
| } |
| |
| mVisible = true; |
| } |
| |
| @Override |
| protected void onResume() { |
| if (Console.Enabled) { |
| Console.log(Constants.Log.App.SystemUIHandshake, "[RecentsActivity|onResume]", "", |
| Console.AnsiRed); |
| } |
| super.onResume(); |
| } |
| |
| @Override |
| public void onAttachedToWindow() { |
| if (Console.Enabled) { |
| Console.log(Constants.Log.App.SystemUIHandshake, |
| "[RecentsActivity|onAttachedToWindow]", "", |
| Console.AnsiRed); |
| } |
| super.onAttachedToWindow(); |
| |
| // Register the broadcast receiver to handle messages from our service |
| IntentFilter filter = new IntentFilter(); |
| filter.addAction(RecentsService.ACTION_HIDE_RECENTS_ACTIVITY); |
| filter.addAction(RecentsService.ACTION_TOGGLE_RECENTS_ACTIVITY); |
| filter.addAction(RecentsService.ACTION_START_ENTER_ANIMATION); |
| registerReceiver(mServiceBroadcastReceiver, filter); |
| |
| // Register the broadcast receiver to handle messages when the screen is turned off |
| filter = new IntentFilter(); |
| filter.addAction(Intent.ACTION_SCREEN_OFF); |
| registerReceiver(mScreenOffReceiver, filter); |
| |
| // Register any broadcast receivers for the task loader |
| RecentsTaskLoader.getInstance().registerReceivers(this, mRecentsView); |
| } |
| |
| @Override |
| public void onDetachedFromWindow() { |
| if (Console.Enabled) { |
| Console.log(Constants.Log.App.SystemUIHandshake, |
| "[RecentsActivity|onDetachedFromWindow]", "", |
| Console.AnsiRed); |
| } |
| super.onDetachedFromWindow(); |
| |
| // Unregister any broadcast receivers we have registered |
| unregisterReceiver(mServiceBroadcastReceiver); |
| unregisterReceiver(mScreenOffReceiver); |
| RecentsTaskLoader.getInstance().unregisterReceivers(); |
| } |
| |
| @Override |
| protected void onPause() { |
| if (Console.Enabled) { |
| Console.log(Constants.Log.App.SystemUIHandshake, "[RecentsActivity|onPause]", "", |
| Console.AnsiRed); |
| } |
| super.onPause(); |
| } |
| |
| @Override |
| protected void onStop() { |
| if (Console.Enabled) { |
| Console.log(Constants.Log.App.SystemUIHandshake, "[RecentsActivity|onStop]", "", |
| Console.AnsiRed); |
| } |
| super.onStop(); |
| |
| // Stop listening for widget package changes if there was one bound |
| RecentsConfiguration config = RecentsConfiguration.getInstance(); |
| if (config.searchBarAppWidgetId >= 0) { |
| mAppWidgetHost.stopListening(); |
| } |
| |
| mVisible = false; |
| mTaskLaunched = false; |
| } |
| |
| @Override |
| protected void onDestroy() { |
| if (Console.Enabled) { |
| Console.log(Constants.Log.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 boolean onKeyDown(int keyCode, KeyEvent event) { |
| if (keyCode == KeyEvent.KEYCODE_TAB) { |
| // Focus the next task in the stack |
| final boolean backward = event.isShiftPressed(); |
| mRecentsView.focusNextTask(!backward); |
| return true; |
| } |
| |
| return super.onKeyDown(keyCode, event); |
| } |
| |
| @Override |
| public void onBackPressed() { |
| // Unfilter any stacks |
| if (!mRecentsView.unfilterFilteredStacks()) { |
| if (!mRecentsView.launchFirstTask()) { |
| super.onBackPressed(); |
| } |
| } |
| } |
| |
| @Override |
| public void onEnterAnimationTriggered() { |
| // Fade in the scrim |
| RecentsConfiguration config = RecentsConfiguration.getInstance(); |
| if (config.hasNavBarScrim()) { |
| mNavBarScrimView.setVisibility(View.VISIBLE); |
| mNavBarScrimView.setAlpha(0f); |
| mNavBarScrimView.animate().alpha(1f) |
| .setStartDelay(config.taskBarEnterAnimDelay) |
| .setDuration(config.navBarScrimEnterDuration) |
| .setInterpolator(config.fastOutSlowInInterpolator) |
| .withLayer() |
| .start(); |
| } |
| } |
| |
| @Override |
| public void onTaskLaunching(boolean isTaskInStackBounds) { |
| mTaskLaunched = true; |
| |
| // Fade out the scrim |
| RecentsConfiguration config = RecentsConfiguration.getInstance(); |
| if (!isTaskInStackBounds && config.hasNavBarScrim()) { |
| mNavBarScrimView.animate().alpha(0f) |
| .setStartDelay(0) |
| .setDuration(config.taskBarExitAnimDuration) |
| .setInterpolator(config.fastOutSlowInInterpolator) |
| .withLayer() |
| .start(); |
| } |
| } |
| |
| @Override |
| public void onProviderChanged(int appWidgetId, AppWidgetProviderInfo appWidgetInfo) { |
| RecentsConfiguration config = RecentsConfiguration.getInstance(); |
| SystemServicesProxy ssp = RecentsTaskLoader.getInstance().getSystemServicesProxy(); |
| if (appWidgetId > -1 && appWidgetId == config.searchBarAppWidgetId) { |
| // The search provider may have changed, so just delete the old widget and bind it again |
| ssp.unbindSearchAppWidget(mAppWidgetHost, appWidgetId); |
| config.updateSearchBarAppWidgetId(this, -1); |
| // Load the widget again |
| bindSearchBarAppWidget(); |
| addSearchBarAppWidgetView(); |
| } |
| } |
| } |