| /* |
| * 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.app.ActivityOptions; |
| import android.app.SearchManager; |
| import android.app.TaskStackBuilder; |
| import android.appwidget.AppWidgetManager; |
| import android.appwidget.AppWidgetProviderInfo; |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.net.Uri; |
| import android.os.Bundle; |
| import android.os.SystemClock; |
| import android.os.UserHandle; |
| import android.provider.Settings; |
| import android.util.Log; |
| import android.view.KeyEvent; |
| import android.view.View; |
| import android.view.ViewStub; |
| import android.view.ViewTreeObserver; |
| import android.view.WindowManager; |
| import com.android.internal.logging.MetricsLogger; |
| import com.android.systemui.R; |
| import com.android.systemui.recents.events.EventBus; |
| import com.android.systemui.recents.events.activity.AppWidgetProviderChangedEvent; |
| import com.android.systemui.recents.events.activity.CancelEnterRecentsWindowAnimationEvent; |
| import com.android.systemui.recents.events.activity.DebugFlagsChangedEvent; |
| import com.android.systemui.recents.events.activity.DismissRecentsToHomeAnimationStarted; |
| import com.android.systemui.recents.events.activity.EnterRecentsWindowAnimationCompletedEvent; |
| import com.android.systemui.recents.events.activity.EnterRecentsWindowLastAnimationFrameEvent; |
| import com.android.systemui.recents.events.activity.ExitRecentsWindowFirstAnimationFrameEvent; |
| import com.android.systemui.recents.events.activity.HideHistoryEvent; |
| import com.android.systemui.recents.events.activity.HideRecentsEvent; |
| import com.android.systemui.recents.events.activity.IterateRecentsEvent; |
| import com.android.systemui.recents.events.activity.LaunchTaskFailedEvent; |
| import com.android.systemui.recents.events.activity.LaunchTaskSucceededEvent; |
| import com.android.systemui.recents.events.activity.ShowHistoryEvent; |
| import com.android.systemui.recents.events.activity.TaskStackUpdatedEvent; |
| import com.android.systemui.recents.events.activity.ToggleRecentsEvent; |
| import com.android.systemui.recents.events.component.RecentsVisibilityChangedEvent; |
| import com.android.systemui.recents.events.component.ScreenPinningRequestEvent; |
| import com.android.systemui.recents.events.ui.AllTaskViewsDismissedEvent; |
| import com.android.systemui.recents.events.ui.DeleteTaskDataEvent; |
| import com.android.systemui.recents.events.ui.ShowApplicationInfoEvent; |
| import com.android.systemui.recents.events.ui.StackViewScrolledEvent; |
| import com.android.systemui.recents.events.ui.UpdateFreeformTaskViewVisibilityEvent; |
| import com.android.systemui.recents.events.ui.UserInteractionEvent; |
| import com.android.systemui.recents.events.ui.focus.DismissFocusedTaskViewEvent; |
| import com.android.systemui.recents.events.ui.focus.FocusNextTaskViewEvent; |
| import com.android.systemui.recents.events.ui.focus.FocusPreviousTaskViewEvent; |
| import com.android.systemui.recents.history.RecentsHistoryView; |
| import com.android.systemui.recents.misc.DozeTrigger; |
| import com.android.systemui.recents.misc.SystemServicesProxy; |
| import com.android.systemui.recents.model.RecentsPackageMonitor; |
| import com.android.systemui.recents.model.RecentsTaskLoadPlan; |
| import com.android.systemui.recents.model.RecentsTaskLoader; |
| import com.android.systemui.recents.model.Task; |
| import com.android.systemui.recents.model.TaskStack; |
| import com.android.systemui.recents.views.RecentsView; |
| import com.android.systemui.recents.views.SystemBarScrimViews; |
| import com.android.systemui.statusbar.BaseStatusBar; |
| |
| import java.util.ArrayList; |
| |
| /** |
| * The main Recents activity that is started from AlternateRecentsComponent. |
| */ |
| public class RecentsActivity extends Activity implements ViewTreeObserver.OnPreDrawListener { |
| |
| private final static String TAG = "RecentsActivity"; |
| private final static boolean DEBUG = false; |
| |
| private final static String KEY_SAVED_STATE_HISTORY_VISIBLE = |
| "saved_instance_state_history_visible"; |
| |
| public final static int EVENT_BUS_PRIORITY = Recents.EVENT_BUS_PRIORITY + 1; |
| |
| private RecentsPackageMonitor mPackageMonitor; |
| private long mLastTabKeyEventTime; |
| private boolean mFinishedOnStartup; |
| private boolean mIgnoreAltTabRelease; |
| |
| // Top level views |
| private RecentsView mRecentsView; |
| private SystemBarScrimViews mScrimViews; |
| private ViewStub mHistoryViewStub; |
| private RecentsHistoryView mHistoryView; |
| |
| // Search AppWidget |
| private AppWidgetProviderInfo mSearchWidgetInfo; |
| private RecentsAppWidgetHost mAppWidgetHost; |
| private RecentsAppWidgetHostView mSearchWidgetHostView; |
| |
| // Runnables to finish the Recents activity |
| private FinishRecentsRunnable mFinishLaunchHomeRunnable; |
| |
| // The trigger to automatically launch the current task |
| private int mFocusTimerDuration; |
| private DozeTrigger mIterateTrigger; |
| |
| /** |
| * A common Runnable to finish Recents by launching Home with an animation depending on the |
| * last activity launch state. Generally we always launch home when we exit Recents rather than |
| * just finishing the activity since we don't know what is behind Recents in the task stack. |
| */ |
| class FinishRecentsRunnable implements Runnable { |
| Intent mLaunchIntent; |
| |
| /** |
| * Creates a finish runnable that starts the specified intent. |
| */ |
| public FinishRecentsRunnable(Intent launchIntent) { |
| mLaunchIntent = launchIntent; |
| } |
| |
| @Override |
| public void run() { |
| try { |
| RecentsActivityLaunchState launchState = |
| Recents.getConfiguration().getLaunchState(); |
| ActivityOptions opts = ActivityOptions.makeCustomAnimation(RecentsActivity.this, |
| launchState.launchedFromSearchHome ? |
| R.anim.recents_to_search_launcher_enter : |
| R.anim.recents_to_launcher_enter, |
| launchState.launchedFromSearchHome ? |
| R.anim.recents_to_search_launcher_exit : |
| R.anim.recents_to_launcher_exit); |
| startActivityAsUser(mLaunchIntent, opts.toBundle(), UserHandle.CURRENT); |
| } catch (Exception e) { |
| Log.e(TAG, getString(R.string.recents_launch_error_message, "Home"), e); |
| } |
| } |
| } |
| |
| /** |
| * Broadcast receiver to handle messages from the system |
| */ |
| final BroadcastReceiver mSystemBroadcastReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| String action = intent.getAction(); |
| if (action.equals(Intent.ACTION_SCREEN_OFF)) { |
| // When the screen turns off, dismiss Recents to Home |
| dismissRecentsToHomeIfVisible(false); |
| } else if (action.equals(SearchManager.INTENT_GLOBAL_SEARCH_ACTIVITY_CHANGED)) { |
| // When the search activity changes, update the search widget view |
| SystemServicesProxy ssp = Recents.getSystemServices(); |
| mSearchWidgetInfo = ssp.getOrBindSearchAppWidget(context, mAppWidgetHost); |
| refreshSearchWidgetView(); |
| } |
| } |
| }; |
| |
| /** Updates the set of recent tasks */ |
| void updateRecentsTasks() { |
| // If AlternateRecentsComponent has preloaded a load plan, then use that to prevent |
| // reconstructing the task stack |
| RecentsTaskLoader loader = Recents.getTaskLoader(); |
| RecentsTaskLoadPlan plan = RecentsImpl.consumeInstanceLoadPlan(); |
| if (plan == null) { |
| plan = loader.createLoadPlan(this); |
| } |
| |
| // Start loading tasks according to the load plan |
| RecentsConfiguration config = Recents.getConfiguration(); |
| RecentsActivityLaunchState launchState = config.getLaunchState(); |
| if (!plan.hasTasks()) { |
| loader.preloadTasks(plan, launchState.launchedFromHome); |
| } |
| RecentsTaskLoadPlan.Options loadOpts = new RecentsTaskLoadPlan.Options(); |
| loadOpts.runningTaskId = launchState.launchedToTaskId; |
| loadOpts.numVisibleTasks = launchState.launchedNumVisibleTasks; |
| loadOpts.numVisibleTaskThumbnails = launchState.launchedNumVisibleThumbnails; |
| loader.loadTasks(this, plan, loadOpts); |
| |
| TaskStack stack = plan.getTaskStack(); |
| ArrayList<Task> tasks = stack.getStackTasks(); |
| int taskCount = stack.getTaskCount(); |
| mRecentsView.setTaskStack(stack); |
| |
| // Mark the task that is the launch target |
| int launchTaskIndexInStack = 0; |
| if (launchState.launchedToTaskId != -1) { |
| for (int j = 0; j < taskCount; j++) { |
| Task t = tasks.get(j); |
| if (t.key.id == launchState.launchedToTaskId) { |
| t.isLaunchTarget = true; |
| launchTaskIndexInStack = tasks.size() - j - 1; |
| break; |
| } |
| } |
| } |
| |
| // Animate the SystemUI scrims into view |
| boolean hasStatusBarScrim = taskCount > 0; |
| boolean animateStatusBarScrim = launchState.launchedFromHome; |
| boolean hasNavBarScrim = (taskCount > 0) && !config.hasTransposedNavBar; |
| boolean animateNavBarScrim = true; |
| mScrimViews.prepareEnterRecentsAnimation(hasStatusBarScrim, animateStatusBarScrim, |
| hasNavBarScrim, animateNavBarScrim); |
| |
| // Keep track of whether we launched from the nav bar button or via alt-tab |
| if (launchState.launchedWithAltTab) { |
| MetricsLogger.count(this, "overview_trigger_alttab", 1); |
| } else { |
| MetricsLogger.count(this, "overview_trigger_nav_btn", 1); |
| } |
| // Keep track of whether we launched from an app or from home |
| if (launchState.launchedFromAppWithThumbnail) { |
| MetricsLogger.count(this, "overview_source_app", 1); |
| // If from an app, track the stack index of the app in the stack (for affiliated tasks) |
| MetricsLogger.histogram(this, "overview_source_app_index", launchTaskIndexInStack); |
| } else { |
| MetricsLogger.count(this, "overview_source_home", 1); |
| } |
| // Keep track of the total stack task count |
| MetricsLogger.histogram(this, "overview_task_count", taskCount); |
| } |
| |
| /** |
| * Dismisses the history view back into the stack view. |
| */ |
| boolean dismissHistory() { |
| // Try and hide the history view first |
| if (mHistoryView != null && mHistoryView.isVisible()) { |
| EventBus.getDefault().send(new HideHistoryEvent(true /* animate */)); |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Dismisses recents if we are already visible and the intent is to toggle the recents view. |
| */ |
| boolean dismissRecentsToFocusedTask() { |
| SystemServicesProxy ssp = Recents.getSystemServices(); |
| if (ssp.isRecentsTopMost(ssp.getTopMostTask(), null)) { |
| // If we have a focused Task, launch that Task now |
| if (mRecentsView.launchFocusedTask()) return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Dismisses recents back to the launch target task. |
| */ |
| boolean dismissRecentsToLaunchTargetTaskOrHome() { |
| SystemServicesProxy ssp = Recents.getSystemServices(); |
| if (ssp.isRecentsTopMost(ssp.getTopMostTask(), null)) { |
| // If we have a focused Task, launch that Task now |
| if (mRecentsView.launchPreviousTask()) return true; |
| // If none of the other cases apply, then just go Home |
| dismissRecentsToHome(true /* animateTaskViews */); |
| } |
| return false; |
| } |
| |
| /** |
| * Dismisses recents if we are already visible and the intent is to toggle the recents view. |
| */ |
| boolean dismissRecentsToFocusedTaskOrHome() { |
| SystemServicesProxy ssp = Recents.getSystemServices(); |
| if (ssp.isRecentsTopMost(ssp.getTopMostTask(), null)) { |
| // If we have a focused Task, launch that Task now |
| if (mRecentsView.launchFocusedTask()) return true; |
| // If none of the other cases apply, then just go Home |
| dismissRecentsToHome(true /* animateTaskViews */); |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Dismisses Recents directly to Home without checking whether it is currently visible. |
| */ |
| void dismissRecentsToHome(boolean animateTaskViews) { |
| DismissRecentsToHomeAnimationStarted dismissEvent = |
| new DismissRecentsToHomeAnimationStarted(animateTaskViews); |
| dismissEvent.addPostAnimationCallback(mFinishLaunchHomeRunnable); |
| dismissEvent.addPostAnimationCallback(new Runnable() { |
| @Override |
| public void run() { |
| Recents.getSystemServices().sendCloseSystemWindows( |
| BaseStatusBar.SYSTEM_DIALOG_REASON_HOME_KEY); |
| } |
| }); |
| EventBus.getDefault().send(dismissEvent); |
| } |
| |
| /** Dismisses Recents directly to Home if we currently aren't transitioning. */ |
| boolean dismissRecentsToHomeIfVisible(boolean animated) { |
| SystemServicesProxy ssp = Recents.getSystemServices(); |
| if (ssp.isRecentsTopMost(ssp.getTopMostTask(), null)) { |
| // Return to Home |
| dismissRecentsToHome(animated); |
| return true; |
| } |
| return false; |
| } |
| |
| /** Called with the activity is first created. */ |
| @Override |
| public void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| mFinishedOnStartup = false; |
| |
| // In the case that the activity starts up before the Recents component has initialized |
| // (usually when debugging/pushing the SysUI apk), just finish this activity. |
| SystemServicesProxy ssp = Recents.getSystemServices(); |
| if (ssp == null) { |
| mFinishedOnStartup = true; |
| finish(); |
| return; |
| } |
| |
| // Register this activity with the event bus |
| EventBus.getDefault().register(this, EVENT_BUS_PRIORITY); |
| |
| // Initialize the widget host (the host id is static and does not change) |
| if (RecentsDebugFlags.Static.EnableSearchBar) { |
| mAppWidgetHost = new RecentsAppWidgetHost(this, RecentsAppWidgetHost.HOST_ID); |
| } |
| mPackageMonitor = new RecentsPackageMonitor(); |
| mPackageMonitor.register(this); |
| |
| // Set the Recents layout |
| setContentView(R.layout.recents); |
| mRecentsView = (RecentsView) findViewById(R.id.recents_view); |
| mRecentsView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE | |
| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | |
| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION); |
| mHistoryViewStub = (ViewStub) findViewById(R.id.history_view_stub); |
| mScrimViews = new SystemBarScrimViews(this); |
| getWindow().getAttributes().privateFlags |= |
| WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_DECOR_VIEW_VISIBILITY; |
| |
| mFocusTimerDuration = getResources().getInteger(R.integer.recents_auto_advance_duration); |
| mIterateTrigger = new DozeTrigger(mFocusTimerDuration, new Runnable() { |
| @Override |
| public void run() { |
| dismissRecentsToFocusedTask(); |
| } |
| }); |
| |
| // Create the home intent runnable |
| 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); |
| mFinishLaunchHomeRunnable = new FinishRecentsRunnable(homeIntent); |
| |
| // Bind the search app widget when we first start up |
| if (RecentsDebugFlags.Static.EnableSearchBar) { |
| mSearchWidgetInfo = ssp.getOrBindSearchAppWidget(this, mAppWidgetHost); |
| } |
| |
| // Register the broadcast receiver to handle messages when the screen is turned off |
| IntentFilter filter = new IntentFilter(); |
| filter.addAction(Intent.ACTION_SCREEN_OFF); |
| if (RecentsDebugFlags.Static.EnableSearchBar) { |
| filter.addAction(SearchManager.INTENT_GLOBAL_SEARCH_ACTIVITY_CHANGED); |
| } |
| registerReceiver(mSystemBroadcastReceiver, filter); |
| } |
| |
| @Override |
| protected void onNewIntent(Intent intent) { |
| super.onNewIntent(intent); |
| setIntent(intent); |
| } |
| |
| @Override |
| protected void onStart() { |
| super.onStart(); |
| |
| // Update the recent tasks |
| updateRecentsTasks(); |
| |
| // If this is a new instance from a configuration change, then we have to manually trigger |
| // the enter animation state, or if recents was relaunched by AM, without going through |
| // the normal mechanisms |
| RecentsConfiguration config = Recents.getConfiguration(); |
| RecentsActivityLaunchState launchState = config.getLaunchState(); |
| boolean wasLaunchedByAm = !launchState.launchedFromHome && |
| !launchState.launchedFromAppWithThumbnail; |
| if (launchState.launchedHasConfigurationChanged || wasLaunchedByAm) { |
| EventBus.getDefault().send(new EnterRecentsWindowAnimationCompletedEvent()); |
| } |
| |
| // Notify that recents is now visible |
| SystemServicesProxy ssp = Recents.getSystemServices(); |
| EventBus.getDefault().send(new RecentsVisibilityChangedEvent(this, ssp, true)); |
| |
| MetricsLogger.visible(this, MetricsLogger.OVERVIEW_ACTIVITY); |
| } |
| |
| @Override |
| public void onEnterAnimationComplete() { |
| super.onEnterAnimationComplete(); |
| EventBus.getDefault().send(new EnterRecentsWindowAnimationCompletedEvent()); |
| } |
| |
| @Override |
| protected void onPause() { |
| super.onPause(); |
| |
| RecentsDebugFlags flags = Recents.getDebugFlags(); |
| if (flags.isFastToggleRecentsEnabled()) { |
| // Stop the fast-toggle dozer |
| mIterateTrigger.stopDozing(); |
| } |
| } |
| |
| @Override |
| protected void onStop() { |
| super.onStop(); |
| |
| // Reset some states |
| mIgnoreAltTabRelease = false; |
| if (mHistoryView != null) { |
| EventBus.getDefault().send(new HideHistoryEvent(false /* animate */)); |
| } |
| |
| // Notify that recents is now hidden |
| SystemServicesProxy ssp = Recents.getSystemServices(); |
| EventBus.getDefault().send(new RecentsVisibilityChangedEvent(this, ssp, false)); |
| |
| // Workaround for b/22542869, if the RecentsActivity is started again, but without going |
| // through SystemUI, we need to reset the config launch flags to ensure that we do not |
| // wait on the system to send a signal that was never queued. |
| RecentsConfiguration config = Recents.getConfiguration(); |
| RecentsActivityLaunchState launchState = config.getLaunchState(); |
| launchState.launchedFromHome = false; |
| launchState.launchedFromSearchHome = false; |
| launchState.launchedFromAppWithThumbnail = false; |
| launchState.launchedToTaskId = -1; |
| launchState.launchedWithAltTab = false; |
| launchState.launchedHasConfigurationChanged = false; |
| launchState.launchedViaDragGesture = false; |
| |
| MetricsLogger.hidden(this, MetricsLogger.OVERVIEW_ACTIVITY); |
| } |
| |
| @Override |
| protected void onDestroy() { |
| super.onDestroy(); |
| |
| // In the case that the activity finished on startup, just skip the unregistration below |
| if (mFinishedOnStartup) { |
| return; |
| } |
| |
| // Unregister the system broadcast receivers |
| unregisterReceiver(mSystemBroadcastReceiver); |
| |
| // Unregister any broadcast receivers for the task loader |
| mPackageMonitor.unregister(); |
| |
| // Stop listening for widget package changes if there was one bound |
| if (RecentsDebugFlags.Static.EnableSearchBar) { |
| mAppWidgetHost.stopListening(); |
| } |
| |
| EventBus.getDefault().unregister(this); |
| } |
| |
| @Override |
| public void onAttachedToWindow() { |
| super.onAttachedToWindow(); |
| EventBus.getDefault().register(mScrimViews, EVENT_BUS_PRIORITY); |
| } |
| |
| @Override |
| public void onDetachedFromWindow() { |
| super.onDetachedFromWindow(); |
| EventBus.getDefault().unregister(mScrimViews); |
| } |
| |
| @Override |
| protected void onSaveInstanceState(Bundle outState) { |
| super.onSaveInstanceState(outState); |
| outState.putBoolean(KEY_SAVED_STATE_HISTORY_VISIBLE, |
| (mHistoryView != null) && mHistoryView.isVisible()); |
| } |
| |
| @Override |
| protected void onRestoreInstanceState(Bundle savedInstanceState) { |
| super.onRestoreInstanceState(savedInstanceState); |
| if (savedInstanceState.getBoolean(KEY_SAVED_STATE_HISTORY_VISIBLE, false)) { |
| EventBus.getDefault().send(new ShowHistoryEvent()); |
| } |
| } |
| |
| @Override |
| public void onTrimMemory(int level) { |
| RecentsTaskLoader loader = Recents.getTaskLoader(); |
| if (loader != null) { |
| loader.onTrimMemory(level); |
| } |
| } |
| |
| @Override |
| public void onMultiWindowModeChanged(boolean multiWindowMode) { |
| super.onMultiWindowModeChanged(multiWindowMode); |
| if (!multiWindowMode) { |
| RecentsTaskLoader loader = Recents.getTaskLoader(); |
| RecentsTaskLoadPlan.Options launchOpts = new RecentsTaskLoadPlan.Options(); |
| launchOpts.loadIcons = false; |
| launchOpts.loadThumbnails = false; |
| launchOpts.onlyLoadForCache = true; |
| RecentsTaskLoadPlan loadPlan = loader.createLoadPlan(this); |
| loader.preloadTasks(loadPlan, false); |
| loader.loadTasks(this, loadPlan, launchOpts); |
| EventBus.getDefault().send(new TaskStackUpdatedEvent(loadPlan.getTaskStack())); |
| } |
| } |
| |
| @Override |
| public boolean onKeyDown(int keyCode, KeyEvent event) { |
| switch (keyCode) { |
| case KeyEvent.KEYCODE_TAB: { |
| int altTabKeyDelay = getResources().getInteger(R.integer.recents_alt_tab_key_delay); |
| boolean hasRepKeyTimeElapsed = (SystemClock.elapsedRealtime() - |
| mLastTabKeyEventTime) > altTabKeyDelay; |
| if (event.getRepeatCount() <= 0 || hasRepKeyTimeElapsed) { |
| // Focus the next task in the stack |
| final boolean backward = event.isShiftPressed(); |
| if (backward) { |
| EventBus.getDefault().send(new FocusPreviousTaskViewEvent()); |
| } else { |
| EventBus.getDefault().send( |
| new FocusNextTaskViewEvent(false /* showTimerIndicator */)); |
| } |
| mLastTabKeyEventTime = SystemClock.elapsedRealtime(); |
| |
| // In the case of another ALT event, don't ignore the next release |
| if (event.isAltPressed()) { |
| mIgnoreAltTabRelease = false; |
| } |
| } |
| return true; |
| } |
| case KeyEvent.KEYCODE_DPAD_UP: { |
| EventBus.getDefault().send( |
| new FocusNextTaskViewEvent(false /* showTimerIndicator */)); |
| return true; |
| } |
| case KeyEvent.KEYCODE_DPAD_DOWN: { |
| EventBus.getDefault().send(new FocusPreviousTaskViewEvent()); |
| return true; |
| } |
| case KeyEvent.KEYCODE_DEL: |
| case KeyEvent.KEYCODE_FORWARD_DEL: { |
| if (event.getRepeatCount() <= 0) { |
| EventBus.getDefault().send(new DismissFocusedTaskViewEvent()); |
| |
| // Keep track of deletions by keyboard |
| MetricsLogger.histogram(this, "overview_task_dismissed_source", |
| Constants.Metrics.DismissSourceKeyboard); |
| return true; |
| } |
| } |
| default: |
| break; |
| } |
| return super.onKeyDown(keyCode, event); |
| } |
| |
| @Override |
| public void onUserInteraction() { |
| // TODO: Prevent creating so many events here |
| final RecentsDebugFlags debugFlags = Recents.getDebugFlags(); |
| EventBus.getDefault().send(new UserInteractionEvent(debugFlags.isFastToggleRecentsEnabled() |
| && debugFlags.isFastToggleIndicatorEnabled())); |
| } |
| |
| @Override |
| public void onBackPressed() { |
| // Back behaves like the recents button so just trigger a toggle event |
| EventBus.getDefault().send(new ToggleRecentsEvent()); |
| } |
| |
| /**** EventBus events ****/ |
| |
| public final void onBusEvent(ToggleRecentsEvent event) { |
| if (!dismissHistory()) { |
| RecentsActivityLaunchState launchState = Recents.getConfiguration().getLaunchState(); |
| if (launchState.launchedFromHome) { |
| dismissRecentsToHome(true /* animateTaskViews */); |
| } else { |
| dismissRecentsToLaunchTargetTaskOrHome(); |
| } |
| } |
| } |
| |
| public final void onBusEvent(IterateRecentsEvent event) { |
| if (!dismissHistory()) { |
| final RecentsDebugFlags debugFlags = Recents.getDebugFlags(); |
| |
| // Focus the next task |
| EventBus.getDefault().send( |
| new FocusNextTaskViewEvent(debugFlags.isFastToggleRecentsEnabled() |
| && debugFlags.isFastToggleIndicatorEnabled())); |
| |
| // Start dozing after the recents button is clicked |
| if (debugFlags.isFastToggleRecentsEnabled()) { |
| if (!mIterateTrigger.isDozing()) { |
| mIterateTrigger.startDozing(); |
| } else { |
| mIterateTrigger.poke(); |
| } |
| } |
| |
| MetricsLogger.action(this, MetricsLogger.ACTION_OVERVIEW_PAGE); |
| } |
| } |
| |
| public final void onBusEvent(UserInteractionEvent event) { |
| mIterateTrigger.stopDozing(); |
| } |
| |
| public final void onBusEvent(HideRecentsEvent event) { |
| if (event.triggeredFromAltTab) { |
| // If we are hiding from releasing Alt-Tab, dismiss Recents to the focused app |
| if (!mIgnoreAltTabRelease) { |
| dismissRecentsToFocusedTaskOrHome(); |
| } |
| } else if (event.triggeredFromHomeKey) { |
| // Otherwise, dismiss Recents to Home |
| if (mHistoryView != null && mHistoryView.isVisible()) { |
| HideHistoryEvent hideEvent = new HideHistoryEvent(true /* animate */); |
| hideEvent.addPostAnimationCallback(new Runnable() { |
| @Override |
| public void run() { |
| dismissRecentsToHome(true /* animateTaskViews */); |
| } |
| }); |
| EventBus.getDefault().send(hideEvent); |
| |
| } else { |
| dismissRecentsToHome(true /* animateTaskViews */); |
| } |
| } else { |
| // Do nothing |
| } |
| } |
| |
| public final void onBusEvent(EnterRecentsWindowAnimationCompletedEvent event) { |
| // Try and start the enter animation (or restart it on configuration changed) |
| if (RecentsDebugFlags.Static.EnableSearchBar) { |
| if (mSearchWidgetInfo != null) { |
| event.addPostAnimationCallback(new Runnable() { |
| @Override |
| public void run() { |
| // Start listening for widget package changes if there is one bound |
| if (mAppWidgetHost != null) { |
| mAppWidgetHost.startListening(); |
| } |
| } |
| }); |
| } |
| } |
| } |
| |
| public final void onBusEvent(EnterRecentsWindowLastAnimationFrameEvent event) { |
| EventBus.getDefault().send(new UpdateFreeformTaskViewVisibilityEvent(true)); |
| mRecentsView.getViewTreeObserver().addOnPreDrawListener(this); |
| mRecentsView.invalidate(); |
| } |
| |
| public final void onBusEvent(ExitRecentsWindowFirstAnimationFrameEvent event) { |
| if (mRecentsView.isLastTaskLaunchedFreeform()) { |
| EventBus.getDefault().send(new UpdateFreeformTaskViewVisibilityEvent(false)); |
| } |
| mRecentsView.getViewTreeObserver().addOnPreDrawListener(this); |
| mRecentsView.invalidate(); |
| } |
| |
| public final void onBusEvent(CancelEnterRecentsWindowAnimationEvent event) { |
| RecentsActivityLaunchState launchState = Recents.getConfiguration().getLaunchState(); |
| int launchToTaskId = launchState.launchedToTaskId; |
| if (launchToTaskId != -1 && |
| (event.launchTask == null || launchToTaskId != event.launchTask.key.id)) { |
| SystemServicesProxy ssp = Recents.getSystemServices(); |
| ssp.cancelWindowTransition(launchState.launchedToTaskId); |
| ssp.cancelThumbnailTransition(getTaskId()); |
| } |
| } |
| |
| public final void onBusEvent(AppWidgetProviderChangedEvent event) { |
| refreshSearchWidgetView(); |
| } |
| |
| public final void onBusEvent(ShowApplicationInfoEvent event) { |
| // Create a new task stack with the application info details activity |
| Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS, |
| Uri.fromParts("package", event.task.key.getComponent().getPackageName(), null)); |
| intent.setComponent(intent.resolveActivity(getPackageManager())); |
| TaskStackBuilder.create(this) |
| .addNextIntentWithParentStack(intent).startActivities(null, |
| new UserHandle(event.task.key.userId)); |
| |
| // Keep track of app-info invocations |
| MetricsLogger.count(this, "overview_app_info", 1); |
| } |
| |
| public final void onBusEvent(DeleteTaskDataEvent event) { |
| // Remove any stored data from the loader |
| RecentsTaskLoader loader = Recents.getTaskLoader(); |
| loader.deleteTaskData(event.task, false); |
| |
| // Remove the task from activity manager |
| SystemServicesProxy ssp = Recents.getSystemServices(); |
| ssp.removeTask(event.task.key.id); |
| } |
| |
| public final void onBusEvent(AllTaskViewsDismissedEvent event) { |
| SystemServicesProxy ssp = Recents.getSystemServices(); |
| if (ssp.hasDockedTask()) { |
| mRecentsView.showEmptyView(); |
| } else { |
| // Just go straight home (no animation necessary because there are no more task views) |
| dismissRecentsToHome(false /* animateTaskViews */); |
| } |
| |
| // Keep track of all-deletions |
| MetricsLogger.count(this, "overview_task_all_dismissed", 1); |
| } |
| |
| public final void onBusEvent(LaunchTaskSucceededEvent event) { |
| MetricsLogger.histogram(this, "overview_task_launch_index", event.taskIndexFromStackFront); |
| } |
| |
| public final void onBusEvent(LaunchTaskFailedEvent event) { |
| // Return to Home |
| dismissRecentsToHome(true /* animateTaskViews */); |
| |
| MetricsLogger.count(this, "overview_task_launch_failed", 1); |
| } |
| |
| public final void onBusEvent(ScreenPinningRequestEvent event) { |
| MetricsLogger.count(this, "overview_screen_pinned", 1); |
| } |
| |
| public final void onBusEvent(DebugFlagsChangedEvent event) { |
| // Just finish recents so that we can reload the flags anew on the next instantiation |
| finish(); |
| } |
| |
| public final void onBusEvent(StackViewScrolledEvent event) { |
| // Once the user has scrolled while holding alt-tab, then we should ignore the release of |
| // the key |
| mIgnoreAltTabRelease = true; |
| } |
| |
| public final void onBusEvent(ShowHistoryEvent event) { |
| if (mHistoryView == null) { |
| mHistoryView = (RecentsHistoryView) mHistoryViewStub.inflate(); |
| // Since this history view is inflated by a view stub after the insets have already |
| // been applied, we have to set them ourselves initial from the insets that were last |
| // provided. |
| mHistoryView.setSystemInsets(mRecentsView.getSystemInsets()); |
| } |
| mHistoryView.show(mRecentsView.getTaskStack(), event.getAnimationTrigger()); |
| } |
| |
| public final void onBusEvent(HideHistoryEvent event) { |
| mHistoryView.hide(event.animate, event.getAnimationTrigger()); |
| } |
| |
| private void refreshSearchWidgetView() { |
| if (mSearchWidgetInfo != null) { |
| SystemServicesProxy ssp = Recents.getSystemServices(); |
| int searchWidgetId = ssp.getSearchAppWidgetId(this); |
| mSearchWidgetHostView = (RecentsAppWidgetHostView) mAppWidgetHost.createView( |
| this, searchWidgetId, mSearchWidgetInfo); |
| Bundle opts = new Bundle(); |
| opts.putInt(AppWidgetManager.OPTION_APPWIDGET_HOST_CATEGORY, |
| AppWidgetProviderInfo.WIDGET_CATEGORY_SEARCHBOX); |
| mSearchWidgetHostView.updateAppWidgetOptions(opts); |
| // Set the padding to 0 for this search widget |
| mSearchWidgetHostView.setPadding(0, 0, 0, 0); |
| mRecentsView.setSearchBar(mSearchWidgetHostView); |
| } else { |
| mRecentsView.setSearchBar(null); |
| } |
| } |
| |
| @Override |
| public boolean onPreDraw() { |
| mRecentsView.getViewTreeObserver().removeOnPreDrawListener(this); |
| // We post to make sure that this information is delivered after this traversals is |
| // finished. |
| mRecentsView.post(new Runnable() { |
| @Override |
| public void run() { |
| Recents.getSystemServices().endProlongedAnimations(); |
| } |
| }); |
| return true; |
| } |
| } |