| /* |
| * 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.views; |
| |
| import android.app.ActivityManager; |
| import android.app.ActivityOptions; |
| import android.app.TaskStackBuilder; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.graphics.Bitmap; |
| import android.graphics.Canvas; |
| import android.graphics.Rect; |
| import android.net.Uri; |
| import android.os.Bundle; |
| import android.os.IRemoteCallback; |
| import android.os.RemoteException; |
| import android.os.UserHandle; |
| import android.provider.Settings; |
| import android.util.AttributeSet; |
| import android.util.Log; |
| import android.util.SparseArray; |
| import android.view.AppTransitionAnimationSpec; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.WindowInsets; |
| import android.view.WindowManagerGlobal; |
| import android.widget.FrameLayout; |
| |
| import com.android.internal.logging.MetricsLogger; |
| import com.android.systemui.R; |
| import com.android.systemui.recents.Constants; |
| import com.android.systemui.recents.RecentsAppWidgetHostView; |
| import com.android.systemui.recents.RecentsConfiguration; |
| import com.android.systemui.recents.misc.SystemServicesProxy; |
| import com.android.systemui.recents.model.RecentsPackageMonitor; |
| import com.android.systemui.recents.model.RecentsTaskLoader; |
| import com.android.systemui.recents.model.Task; |
| import com.android.systemui.recents.model.TaskStack; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * This view is the the top level layout that contains TaskStacks (which are laid out according |
| * to their SpaceNode bounds. |
| */ |
| public class RecentsView extends FrameLayout implements TaskStackView.TaskStackViewCallbacks, |
| RecentsPackageMonitor.PackageCallbacks { |
| |
| private static final String TAG = "RecentsView"; |
| |
| private static final boolean ADD_HEADER_BITMAP = true; |
| |
| /** The RecentsView callbacks */ |
| public interface RecentsViewCallbacks { |
| public void onTaskViewClicked(); |
| public void onTaskLaunchFailed(); |
| public void onAllTaskViewsDismissed(); |
| public void onExitToHomeAnimationTriggered(); |
| public void onScreenPinningRequest(); |
| public void onTaskResize(Task t); |
| public void runAfterPause(Runnable r); |
| } |
| |
| RecentsConfiguration mConfig; |
| LayoutInflater mInflater; |
| DebugOverlayView mDebugOverlay; |
| |
| ArrayList<TaskStack> mStacks; |
| TaskStackView mTaskStackView; |
| RecentsAppWidgetHostView mSearchBar; |
| RecentsViewCallbacks mCb; |
| |
| public RecentsView(Context context) { |
| super(context); |
| } |
| |
| public RecentsView(Context context, AttributeSet attrs) { |
| this(context, attrs, 0); |
| } |
| |
| public RecentsView(Context context, AttributeSet attrs, int defStyleAttr) { |
| this(context, attrs, defStyleAttr, 0); |
| } |
| |
| public RecentsView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { |
| super(context, attrs, defStyleAttr, defStyleRes); |
| mConfig = RecentsConfiguration.getInstance(); |
| mInflater = LayoutInflater.from(context); |
| } |
| |
| /** Sets the callbacks */ |
| public void setCallbacks(RecentsViewCallbacks cb) { |
| mCb = cb; |
| } |
| |
| /** Sets the debug overlay */ |
| public void setDebugOverlay(DebugOverlayView overlay) { |
| mDebugOverlay = overlay; |
| } |
| |
| /** Set/get the bsp root node */ |
| public void setTaskStack(TaskStack stack) { |
| if (mConfig.launchedReuseTaskStackViews) { |
| if (mTaskStackView != null) { |
| // If onRecentsHidden is not triggered, we need to the stack view again here |
| mTaskStackView.reset(); |
| mTaskStackView.setStack(stack); |
| } else { |
| mTaskStackView = new TaskStackView(getContext(), stack); |
| mTaskStackView.setCallbacks(this); |
| addView(mTaskStackView); |
| } |
| } else { |
| if (mTaskStackView != null) { |
| removeView(mTaskStackView); |
| } |
| mTaskStackView = new TaskStackView(getContext(), stack); |
| mTaskStackView.setCallbacks(this); |
| addView(mTaskStackView); |
| } |
| |
| // Enable debug mode drawing on all the stacks if necessary |
| if (mConfig.debugModeEnabled) { |
| mTaskStackView.setDebugOverlay(mDebugOverlay); |
| } |
| |
| // Trigger a new layout |
| requestLayout(); |
| } |
| |
| /** Gets the next task in the stack - or if the last - the top task */ |
| public Task getNextTaskOrTopTask(Task taskToSearch) { |
| Task returnTask = null; |
| boolean found = false; |
| if (mTaskStackView != null) { |
| TaskStack stack = mTaskStackView.getStack(); |
| ArrayList<Task> taskList = stack.getTasks(); |
| // Iterate the stack views and try and find the focused task |
| for (int j = taskList.size() - 1; j >= 0; --j) { |
| Task task = taskList.get(j); |
| // Return the next task in the line. |
| if (found) |
| return task; |
| // Remember the first possible task as the top task. |
| if (returnTask == null) |
| returnTask = task; |
| if (task == taskToSearch) |
| found = true; |
| } |
| } |
| return returnTask; |
| } |
| |
| /** Launches the focused task from the first stack if possible */ |
| public boolean launchFocusedTask() { |
| if (mTaskStackView != null) { |
| TaskStack stack = mTaskStackView.getStack(); |
| // Iterate the stack views and try and find the focused task |
| List<TaskView> taskViews = mTaskStackView.getTaskViews(); |
| int taskViewCount = taskViews.size(); |
| for (int j = 0; j < taskViewCount; j++) { |
| TaskView tv = taskViews.get(j); |
| Task task = tv.getTask(); |
| if (tv.isFocusedTask()) { |
| onTaskViewClicked(mTaskStackView, tv, stack, task, false, false, null); |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| /** Launches a given task. */ |
| public boolean launchTask(Task task, Rect taskBounds) { |
| if (mTaskStackView != null) { |
| TaskStack stack = mTaskStackView.getStack(); |
| // Iterate the stack views and try and find the given task. |
| List<TaskView> taskViews = mTaskStackView.getTaskViews(); |
| int taskViewCount = taskViews.size(); |
| for (int j = 0; j < taskViewCount; j++) { |
| TaskView tv = taskViews.get(j); |
| if (tv.getTask() == task) { |
| onTaskViewClicked(mTaskStackView, tv, stack, task, false, true, taskBounds); |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| /** Launches the task that Recents was launched from, if possible */ |
| public boolean launchPreviousTask() { |
| if (mTaskStackView != null) { |
| TaskStack stack = mTaskStackView.getStack(); |
| ArrayList<Task> tasks = stack.getTasks(); |
| |
| // Find the launch task in the stack |
| if (!tasks.isEmpty()) { |
| int taskCount = tasks.size(); |
| for (int j = 0; j < taskCount; j++) { |
| if (tasks.get(j).isLaunchTarget) { |
| Task task = tasks.get(j); |
| TaskView tv = mTaskStackView.getChildViewForTask(task); |
| onTaskViewClicked(mTaskStackView, tv, stack, task, false, false, null); |
| return true; |
| } |
| } |
| } |
| } |
| return false; |
| } |
| |
| /** Requests all task stacks to start their enter-recents animation */ |
| public void startEnterRecentsAnimation(ViewAnimation.TaskViewEnterContext ctx) { |
| // We have to increment/decrement the post animation trigger in case there are no children |
| // to ensure that it runs |
| ctx.postAnimationTrigger.increment(); |
| if (mTaskStackView != null) { |
| mTaskStackView.startEnterRecentsAnimation(ctx); |
| } |
| ctx.postAnimationTrigger.decrement(); |
| } |
| |
| /** Requests all task stacks to start their exit-recents animation */ |
| public void startExitToHomeAnimation(ViewAnimation.TaskViewExitContext ctx) { |
| // We have to increment/decrement the post animation trigger in case there are no children |
| // to ensure that it runs |
| ctx.postAnimationTrigger.increment(); |
| if (mTaskStackView != null) { |
| mTaskStackView.startExitToHomeAnimation(ctx); |
| } |
| ctx.postAnimationTrigger.decrement(); |
| |
| // Notify of the exit animation |
| mCb.onExitToHomeAnimationTriggered(); |
| } |
| |
| /** Adds the search bar */ |
| public void setSearchBar(RecentsAppWidgetHostView searchBar) { |
| // Remove the previous search bar if one exists |
| if (mSearchBar != null && indexOfChild(mSearchBar) > -1) { |
| removeView(mSearchBar); |
| } |
| // Add the new search bar |
| if (searchBar != null) { |
| mSearchBar = searchBar; |
| addView(mSearchBar); |
| } |
| } |
| |
| /** Returns whether there is currently a search bar */ |
| public boolean hasValidSearchBar() { |
| return mSearchBar != null && !mSearchBar.isReinflateRequired(); |
| } |
| |
| /** Sets the visibility of the search bar */ |
| public void setSearchBarVisibility(int visibility) { |
| if (mSearchBar != null) { |
| mSearchBar.setVisibility(visibility); |
| // Always bring the search bar to the top |
| mSearchBar.bringToFront(); |
| } |
| } |
| |
| /** |
| * This is called with the full size of the window since we are handling our own insets. |
| */ |
| @Override |
| protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| int width = MeasureSpec.getSize(widthMeasureSpec); |
| int height = MeasureSpec.getSize(heightMeasureSpec); |
| |
| // Get the search bar bounds and measure the search bar layout |
| Rect searchBarSpaceBounds = new Rect(); |
| if (mSearchBar != null) { |
| mConfig.getSearchBarBounds(new Rect(0, 0, width, height), mConfig.systemInsets.top, |
| searchBarSpaceBounds); |
| mSearchBar.measure( |
| MeasureSpec.makeMeasureSpec(searchBarSpaceBounds.width(), MeasureSpec.EXACTLY), |
| MeasureSpec.makeMeasureSpec(searchBarSpaceBounds.height(), MeasureSpec.EXACTLY)); |
| } |
| |
| Rect taskStackBounds = new Rect(); |
| mConfig.getAvailableTaskStackBounds(new Rect(0, 0, width, height), mConfig.systemInsets.top, |
| mConfig.systemInsets.right, searchBarSpaceBounds, taskStackBounds); |
| if (mTaskStackView != null && mTaskStackView.getVisibility() != GONE) { |
| mTaskStackView.setTaskStackBounds(taskStackBounds); |
| mTaskStackView.measure(widthMeasureSpec, heightMeasureSpec); |
| } |
| |
| setMeasuredDimension(width, height); |
| } |
| |
| /** |
| * This is called with the full size of the window since we are handling our own insets. |
| */ |
| @Override |
| protected void onLayout(boolean changed, int left, int top, int right, int bottom) { |
| // Get the search bar bounds so that we lay it out |
| Rect measuredRect = new Rect(0, 0, getMeasuredWidth(), getMeasuredHeight()); |
| Rect searchBarSpaceBounds = new Rect(); |
| if (mSearchBar != null) { |
| mConfig.getSearchBarBounds(measuredRect, |
| mConfig.systemInsets.top, searchBarSpaceBounds); |
| mSearchBar.layout(searchBarSpaceBounds.left, searchBarSpaceBounds.top, |
| searchBarSpaceBounds.right, searchBarSpaceBounds.bottom); |
| } |
| |
| if (mTaskStackView != null && mTaskStackView.getVisibility() != GONE) { |
| mTaskStackView.layout(left, top, left + getMeasuredWidth(), top + getMeasuredHeight()); |
| } |
| } |
| |
| @Override |
| public WindowInsets onApplyWindowInsets(WindowInsets insets) { |
| // Update the configuration with the latest system insets and trigger a relayout |
| mConfig.updateSystemInsets(insets.getSystemWindowInsets()); |
| requestLayout(); |
| return insets.consumeSystemWindowInsets(); |
| } |
| |
| /** Notifies each task view of the user interaction. */ |
| public void onUserInteraction() { |
| // Get the first stack view |
| if (mTaskStackView != null) { |
| mTaskStackView.onUserInteraction(); |
| } |
| } |
| |
| /** Focuses the next task in the first stack view */ |
| public void focusNextTask(boolean forward) { |
| // Get the first stack view |
| if (mTaskStackView != null) { |
| mTaskStackView.focusNextTask(forward, true); |
| } |
| } |
| |
| /** Dismisses the focused task. */ |
| public void dismissFocusedTask() { |
| // Get the first stack view |
| if (mTaskStackView != null) { |
| mTaskStackView.dismissFocusedTask(); |
| } |
| } |
| |
| /** Unfilters any filtered stacks */ |
| public boolean unfilterFilteredStacks() { |
| if (mStacks != null) { |
| // Check if there are any filtered stacks and unfilter them before we back out of Recents |
| boolean stacksUnfiltered = false; |
| int numStacks = mStacks.size(); |
| for (int i = 0; i < numStacks; i++) { |
| TaskStack stack = mStacks.get(i); |
| if (stack.hasFilteredTasks()) { |
| stack.unfilterTasks(); |
| stacksUnfiltered = true; |
| } |
| } |
| return stacksUnfiltered; |
| } |
| return false; |
| } |
| |
| public void disableLayersForOneFrame() { |
| if (mTaskStackView != null) { |
| mTaskStackView.disableLayersForOneFrame(); |
| } |
| } |
| |
| private void postDrawHeaderThumbnailTransitionRunnable(final TaskStackView view, |
| final TaskView clickedView, final int offsetX, final int offsetY, |
| final float stackScroll, |
| final ActivityOptions.OnAnimationStartedListener animStartedListener) { |
| Runnable r = new Runnable() { |
| @Override |
| public void run() { |
| overrideDrawHeaderThumbnailTransition(view, clickedView, offsetX, offsetY, |
| stackScroll, animStartedListener); |
| |
| } |
| }; |
| |
| mCb.runAfterPause(r); |
| } |
| |
| private void overrideDrawHeaderThumbnailTransition(TaskStackView stackView, |
| TaskView clickedTask, int offsetX, int offsetY, float stackScroll, |
| final ActivityOptions.OnAnimationStartedListener animStartedListener) { |
| List<AppTransitionAnimationSpec> specs = getAppTransitionAnimationSpecs(stackView, |
| clickedTask, offsetX, offsetY, stackScroll); |
| if (specs == null) { |
| return; |
| } |
| |
| IRemoteCallback.Stub callback = new IRemoteCallback.Stub() { |
| @Override |
| public void sendResult(Bundle data) throws RemoteException { |
| post(new Runnable() { |
| @Override |
| public void run() { |
| if (animStartedListener != null) { |
| animStartedListener.onAnimationStarted(); |
| } |
| } |
| }); |
| } |
| }; |
| |
| AppTransitionAnimationSpec[] specsArray = |
| new AppTransitionAnimationSpec[specs.size()]; |
| try { |
| WindowManagerGlobal.getWindowManagerService().overridePendingAppTransitionMultiThumb( |
| specs.toArray(specsArray), callback, true /* scaleUp */); |
| |
| } catch (RemoteException e) { |
| Log.w(TAG, "Error overriding app transition", e); |
| } |
| } |
| |
| private List<AppTransitionAnimationSpec> getAppTransitionAnimationSpecs(TaskStackView stackView, |
| TaskView clickedTask, int offsetX, int offsetY, float stackScroll) { |
| final int targetStackId = clickedTask.getTask().key.stackId; |
| if (targetStackId != ActivityManager.FREEFORM_WORKSPACE_STACK_ID |
| && targetStackId != ActivityManager.FULLSCREEN_WORKSPACE_STACK_ID) { |
| return null; |
| } |
| // If this is a full screen stack, the transition will be towards the single, full screen |
| // task. We only need the transition spec for this task. |
| List<AppTransitionAnimationSpec> specs = new ArrayList<>(); |
| if (targetStackId == ActivityManager.FULLSCREEN_WORKSPACE_STACK_ID) { |
| specs.add(createThumbnailHeaderAnimationSpec( |
| stackView, offsetX, offsetY, stackScroll, clickedTask, |
| clickedTask.getTask().key.id, ADD_HEADER_BITMAP)); |
| return specs; |
| } |
| // This is a free form stack or full screen stack, so there will be multiple windows |
| // animating from thumbnails. We need transition animation specs for all of them. |
| |
| // We will use top and bottom task views as a base for tasks, that aren't visible on the |
| // screen. This is necessary for cascade recents list, where some of the tasks might be |
| // hidden. |
| List<TaskView> taskViews = stackView.getTaskViews(); |
| int childCount = taskViews.size(); |
| TaskView topChild = taskViews.get(0); |
| TaskView bottomChild = taskViews.get(childCount - 1); |
| SparseArray<TaskView> taskViewsByTaskId = new SparseArray<>(); |
| for (int i = 0; i < childCount; i++) { |
| TaskView taskView = taskViews.get(i); |
| taskViewsByTaskId.put(taskView.getTask().key.id, taskView); |
| } |
| |
| TaskStack stack = stackView.getStack(); |
| // We go through all tasks now and for each generate transition animation spec. If there is |
| // a view associated with a task, we use that view as a base for the animation. If there |
| // isn't, we use bottom or top view, depending on which one would be closer to the task |
| // view if it existed. |
| ArrayList<Task> tasks = stack.getTasks(); |
| boolean passedClickedTask = false; |
| for (int i = 0, n = tasks.size(); i < n; i++) { |
| Task task = tasks.get(i); |
| TaskView taskView = taskViewsByTaskId.get(task.key.id); |
| if (taskView != null) { |
| specs.add(createThumbnailHeaderAnimationSpec(stackView, offsetX, offsetY, |
| stackScroll, taskView, taskView.getTask().key.id, ADD_HEADER_BITMAP)); |
| if (taskView == clickedTask) { |
| passedClickedTask = true; |
| } |
| } else { |
| taskView = passedClickedTask ? bottomChild : topChild; |
| specs.add(createThumbnailHeaderAnimationSpec(stackView, offsetX, offsetY, |
| stackScroll, taskView, task.key.id, !ADD_HEADER_BITMAP)); |
| } |
| } |
| |
| return specs; |
| } |
| |
| private AppTransitionAnimationSpec createThumbnailHeaderAnimationSpec(TaskStackView stackView, |
| int offsetX, int offsetY, float stackScroll, TaskView tv, int taskId, |
| boolean addHeaderBitmap) { |
| // Disable any focused state before we draw the header |
| // Upfront the processing of the thumbnail |
| if (tv.isFocusedTask()) { |
| tv.unsetFocusedTask(); |
| } |
| TaskViewTransform transform = new TaskViewTransform(); |
| transform = stackView.getStackAlgorithm().getStackTransform(tv.mTask, stackScroll, |
| transform, null); |
| |
| float scale = tv.getScaleX(); |
| int fromHeaderWidth = (int) (tv.mHeaderView.getMeasuredWidth() * scale); |
| int fromHeaderHeight = (int) (tv.mHeaderView.getMeasuredHeight() * scale); |
| |
| Bitmap b = null; |
| if (addHeaderBitmap) { |
| b = Bitmap.createBitmap(fromHeaderWidth, fromHeaderHeight, |
| Bitmap.Config.ARGB_8888); |
| |
| if (Constants.DebugFlags.App.EnableTransitionThumbnailDebugMode) { |
| b.eraseColor(0xFFff0000); |
| } else { |
| Canvas c = new Canvas(b); |
| c.scale(tv.getScaleX(), tv.getScaleY()); |
| tv.mHeaderView.draw(c); |
| c.setBitmap(null); |
| |
| } |
| b = b.createAshmemBitmap(); |
| } |
| |
| int[] pts = new int[2]; |
| tv.getLocationOnScreen(pts); |
| |
| final int left = pts[0] + offsetX; |
| final int top = pts[1] + offsetY; |
| final Rect rect = new Rect(left, top, left + transform.rect.width(), |
| top + transform.rect.height()); |
| |
| return new AppTransitionAnimationSpec(taskId, b, rect); |
| } |
| |
| /**** TaskStackView.TaskStackCallbacks Implementation ****/ |
| |
| @Override |
| public void onTaskViewClicked(final TaskStackView stackView, final TaskView tv, |
| final TaskStack stack, final Task task, final boolean lockToTask, |
| final boolean boundsValid, final Rect bounds) { |
| |
| // Notify any callbacks of the launching of a new task |
| if (mCb != null) { |
| mCb.onTaskViewClicked(); |
| } |
| |
| // Upfront the processing of the thumbnail |
| TaskViewTransform transform = new TaskViewTransform(); |
| View sourceView; |
| int offsetX = 0; |
| int offsetY = 0; |
| float stackScroll = stackView.getScroller().getStackScroll(); |
| if (tv == null) { |
| // If there is no actual task view, then use the stack view as the source view |
| // and then offset to the expected transform rect, but bound this to just |
| // outside the display rect (to ensure we don't animate from too far away) |
| sourceView = stackView; |
| offsetX = transform.rect.left; |
| offsetY = mConfig.displayRect.height(); |
| } else { |
| sourceView = tv.mThumbnailView; |
| } |
| |
| // Compute the thumbnail to scale up from |
| final SystemServicesProxy ssp = |
| RecentsTaskLoader.getInstance().getSystemServicesProxy(); |
| ActivityOptions opts = null; |
| ActivityOptions.OnAnimationStartedListener animStartedListener = null; |
| if (task.thumbnail != null && task.thumbnail.getWidth() > 0 && |
| task.thumbnail.getHeight() > 0) { |
| if (lockToTask) { |
| animStartedListener = new ActivityOptions.OnAnimationStartedListener() { |
| boolean mTriggered = false; |
| @Override |
| public void onAnimationStarted() { |
| if (!mTriggered) { |
| postDelayed(new Runnable() { |
| @Override |
| public void run() { |
| mCb.onScreenPinningRequest(); |
| } |
| }, 350); |
| mTriggered = true; |
| } |
| } |
| }; |
| } |
| postDrawHeaderThumbnailTransitionRunnable(stackView, tv, offsetX, offsetY, stackScroll, |
| animStartedListener); |
| if (mConfig.multiWindowEnabled) { |
| opts = ActivityOptions.makeCustomAnimation(sourceView.getContext(), |
| R.anim.recents_from_unknown_enter, |
| R.anim.recents_from_unknown_exit, |
| sourceView.getHandler(), animStartedListener); |
| } else { |
| opts = ActivityOptions.makeThumbnailAspectScaleUpAnimation(sourceView, |
| Bitmap.createBitmap(1, 1, Bitmap.Config.ALPHA_8).createAshmemBitmap(), |
| offsetX, offsetY, transform.rect.width(), transform.rect.height(), |
| sourceView.getHandler(), animStartedListener); |
| } |
| } else { |
| opts = ActivityOptions.makeBasic(); |
| } |
| if (boundsValid) { |
| opts.setBounds(bounds); |
| } |
| final ActivityOptions launchOpts = opts; |
| final boolean screenPinningRequested = (animStartedListener == null) && lockToTask; |
| final Runnable launchRunnable = new Runnable() { |
| @Override |
| public void run() { |
| if (task.isActive) { |
| // Bring an active task to the foreground |
| ssp.moveTaskToFront(task.key.id, launchOpts); |
| } else { |
| if (ssp.startActivityFromRecents(getContext(), task.key.id, |
| task.activityLabel, launchOpts)) { |
| if (screenPinningRequested) { |
| mCb.onScreenPinningRequest(); |
| } |
| } else { |
| // Dismiss the task and return the user to home if we fail to |
| // launch the task |
| onTaskViewDismissed(task); |
| if (mCb != null) { |
| mCb.onTaskLaunchFailed(); |
| } |
| |
| // Keep track of failed launches |
| MetricsLogger.count(getContext(), "overview_task_launch_failed", 1); |
| } |
| } |
| } |
| }; |
| |
| // Keep track of the index of the task launch |
| int taskIndexFromFront = 0; |
| int taskIndex = stack.indexOfTask(task); |
| if (taskIndex > -1) { |
| taskIndexFromFront = stack.getTaskCount() - taskIndex - 1; |
| } |
| MetricsLogger.histogram(getContext(), "overview_task_launch_index", taskIndexFromFront); |
| |
| // Launch the app right away if there is no task view, otherwise, animate the icon out first |
| if (tv == null) { |
| launchRunnable.run(); |
| } else { |
| if (task.group != null && !task.group.isFrontMostTask(task)) { |
| // For affiliated tasks that are behind other tasks, we must animate the front cards |
| // out of view before starting the task transition |
| stackView.startLaunchTaskAnimation(tv, launchRunnable, lockToTask); |
| } else { |
| // Otherwise, we can start the task transition immediately |
| stackView.startLaunchTaskAnimation(tv, null, lockToTask); |
| launchRunnable.run(); |
| } |
| } |
| } |
| |
| @Override |
| public void onTaskViewAppInfoClicked(Task t) { |
| // Create a new task stack with the application info details activity |
| Intent baseIntent = t.key.baseIntent; |
| Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS, |
| Uri.fromParts("package", baseIntent.getComponent().getPackageName(), null)); |
| intent.setComponent(intent.resolveActivity(getContext().getPackageManager())); |
| TaskStackBuilder.create(getContext()) |
| .addNextIntentWithParentStack(intent).startActivities(null, |
| new UserHandle(t.key.userId)); |
| } |
| |
| @Override |
| public void onTaskViewDismissed(Task t) { |
| // Remove any stored data from the loader. We currently don't bother notifying the views |
| // that the data has been unloaded because at the point we call onTaskViewDismissed(), the views |
| // either don't need to be updated, or have already been removed. |
| RecentsTaskLoader loader = RecentsTaskLoader.getInstance(); |
| loader.deleteTaskData(t, false); |
| |
| // Remove the old task from activity manager |
| loader.getSystemServicesProxy().removeTask(t.key.id); |
| } |
| |
| @Override |
| public void onAllTaskViewsDismissed(ArrayList<Task> removedTasks) { |
| if (removedTasks != null) { |
| int taskCount = removedTasks.size(); |
| for (int i = 0; i < taskCount; i++) { |
| onTaskViewDismissed(removedTasks.get(i)); |
| } |
| } |
| |
| mCb.onAllTaskViewsDismissed(); |
| |
| // Keep track of all-deletions |
| MetricsLogger.count(getContext(), "overview_task_all_dismissed", 1); |
| } |
| |
| /** Final callback after Recents is finally hidden. */ |
| public void onRecentsHidden() { |
| // Notify each task stack view |
| if (mTaskStackView != null) { |
| mTaskStackView.onRecentsHidden(); |
| } |
| } |
| |
| @Override |
| public void onTaskStackFilterTriggered() { |
| // Hide the search bar |
| if (mSearchBar != null) { |
| mSearchBar.animate() |
| .alpha(0f) |
| .setStartDelay(0) |
| .setInterpolator(mConfig.fastOutSlowInInterpolator) |
| .setDuration(mConfig.filteringCurrentViewsAnimDuration) |
| .withLayer() |
| .start(); |
| } |
| } |
| |
| @Override |
| public void onTaskStackUnfilterTriggered() { |
| // Show the search bar |
| if (mSearchBar != null) { |
| mSearchBar.animate() |
| .alpha(1f) |
| .setStartDelay(0) |
| .setInterpolator(mConfig.fastOutSlowInInterpolator) |
| .setDuration(mConfig.filteringNewViewsAnimDuration) |
| .withLayer() |
| .start(); |
| } |
| } |
| |
| @Override |
| public void onTaskResize(Task t) { |
| if (mCb != null) { |
| mCb.onTaskResize(t); |
| } |
| } |
| |
| /**** RecentsPackageMonitor.PackageCallbacks Implementation ****/ |
| |
| @Override |
| public void onPackagesChanged(RecentsPackageMonitor monitor, String packageName, int userId) { |
| // Propagate this event down to each task stack view |
| if (mTaskStackView != null) { |
| mTaskStackView.onPackagesChanged(monitor, packageName, userId); |
| } |
| } |
| } |