Examples with TaskStack com.android.systemui.recents.model.TaskStack used on opensource projects

Example 31 with TaskStack

use of com.android.systemui.recents.model.TaskStack in project android_frameworks_base by crdroidandroid.

the class RecentsImpl method showRelativeAffiliatedTask.

/**
     * Transitions to the next affiliated task.
     */
public void showRelativeAffiliatedTask(boolean showNextTask) {
    SystemServicesProxy ssp = Recents.getSystemServices();
    RecentsTaskLoader loader = Recents.getTaskLoader();
    RecentsTaskLoadPlan plan = loader.createLoadPlan(mContext);
    loader.preloadTasks(plan, -1, false);
    TaskStack focusedStack = plan.getTaskStack();
    // Return early if there are no tasks in the focused stack
    if (focusedStack == null || focusedStack.getTaskCount() == 0)
        return;
    // Return early if there is no running task (can't determine affiliated tasks in this case)
    ActivityManager.RunningTaskInfo runningTask = ssp.getRunningTask();
    if (runningTask == null)
        return;
    // Return early if the running task is in the home stack (optimization)
    if (SystemServicesProxy.isHomeStack(runningTask.stackId))
        return;
    // Find the task in the recents list
    ArrayList<Task> tasks = focusedStack.getStackTasks();
    Task toTask = null;
    ActivityOptions launchOpts = null;
    int taskCount = tasks.size();
    int numAffiliatedTasks = 0;
    for (int i = 0; i < taskCount; i++) {
        Task task = tasks.get(i);
        if (task.key.id == runningTask.id) {
            TaskGrouping group = task.group;
            Task.TaskKey toTaskKey;
            if (showNextTask) {
                toTaskKey = group.getNextTaskInGroup(task);
                launchOpts = ActivityOptions.makeCustomAnimation(mContext, R.anim.recents_launch_next_affiliated_task_target, R.anim.recents_launch_next_affiliated_task_source);
            } else {
                toTaskKey = group.getPrevTaskInGroup(task);
                launchOpts = ActivityOptions.makeCustomAnimation(mContext, R.anim.recents_launch_prev_affiliated_task_target, R.anim.recents_launch_prev_affiliated_task_source);
            }
            if (toTaskKey != null) {
                toTask = focusedStack.findTaskWithId(toTaskKey.id);
            }
            numAffiliatedTasks = group.getTaskCount();
            break;
        }
    }
    // Return early if there is no next task
    if (toTask == null) {
        if (numAffiliatedTasks > 1) {
            if (showNextTask) {
                ssp.startInPlaceAnimationOnFrontMostApplication(ActivityOptions.makeCustomInPlaceAnimation(mContext, R.anim.recents_launch_next_affiliated_task_bounce));
            } else {
                ssp.startInPlaceAnimationOnFrontMostApplication(ActivityOptions.makeCustomInPlaceAnimation(mContext, R.anim.recents_launch_prev_affiliated_task_bounce));
            }
        }
        return;
    }
    // Keep track of actually launched affiliated tasks
    MetricsLogger.count(mContext, "overview_affiliated_task_launch", 1);
    // Launch the task
    ssp.startActivityFromRecents(mContext, toTask.key, toTask.title, launchOpts);
}

Example 32 with TaskStack

use of com.android.systemui.recents.model.TaskStack in project android_frameworks_base by AOSPA.

the class RecentsActivity method reloadStackView.

/**
     * Reloads the stack views upon launching Recents.
     */
private void reloadStackView() {
    // If the Recents component has preloaded a load plan, then use that to prevent
    // reconstructing the task stack
    RecentsTaskLoader loader = Recents.getTaskLoader();
    RecentsTaskLoadPlan loadPlan = RecentsImpl.consumeInstanceLoadPlan();
    if (loadPlan == null) {
        loadPlan = loader.createLoadPlan(this);
    }
    // Start loading tasks according to the load plan
    RecentsConfiguration config = Recents.getConfiguration();
    RecentsActivityLaunchState launchState = config.getLaunchState();
    if (!loadPlan.hasTasks()) {
        loader.preloadTasks(loadPlan, launchState.launchedToTaskId, !launchState.launchedFromHome);
    }
    RecentsTaskLoadPlan.Options loadOpts = new RecentsTaskLoadPlan.Options();
    loadOpts.runningTaskId = launchState.launchedToTaskId;
    loadOpts.numVisibleTasks = launchState.launchedNumVisibleTasks;
    loadOpts.numVisibleTaskThumbnails = launchState.launchedNumVisibleThumbnails;
    loader.loadTasks(this, loadPlan, loadOpts);
    TaskStack stack = loadPlan.getTaskStack();
    mRecentsView.onReload(mIsVisible, stack.getTaskCount() == 0);
    mRecentsView.updateStack(stack, true);
    // Update the nav bar scrim, but defer the animation until the enter-window event
    boolean animateNavBarScrim = !launchState.launchedViaDockGesture;
    mScrimViews.updateNavBarScrim(animateNavBarScrim, stack.getTaskCount() > 0, null);
    // If this is a new instance relaunched by AM, without going through the normal mechanisms,
    // then we have to manually trigger the enter animation state
    boolean wasLaunchedByAm = !launchState.launchedFromHome && !launchState.launchedFromApp;
    if (wasLaunchedByAm) {
        EventBus.getDefault().send(new EnterRecentsWindowAnimationCompletedEvent());
    }
    // 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.launchedFromApp) {
        Task launchTarget = stack.getLaunchTarget();
        int launchTaskIndexInStack = launchTarget != null ? stack.indexOfStackTask(launchTarget) : 0;
        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
    int taskCount = mRecentsView.getStack().getTaskCount();
    MetricsLogger.histogram(this, "overview_task_count", taskCount);
    // After we have resumed, set the visible state until the next onStop() call
    mIsVisible = true;
}

Example 33 with TaskStack

use of com.android.systemui.recents.model.TaskStack in project android_frameworks_base by AOSPA.

the class RecentsActivity method onMultiWindowModeChanged.

@Override
public void onMultiWindowModeChanged(boolean isInMultiWindowMode) {
    super.onMultiWindowModeChanged(isInMultiWindowMode);
    // Reload the task stack completely
    RecentsConfiguration config = Recents.getConfiguration();
    RecentsActivityLaunchState launchState = config.getLaunchState();
    RecentsTaskLoader loader = Recents.getTaskLoader();
    RecentsTaskLoadPlan loadPlan = loader.createLoadPlan(this);
    loader.preloadTasks(loadPlan, -1, /* runningTaskId */
    false);
    RecentsTaskLoadPlan.Options loadOpts = new RecentsTaskLoadPlan.Options();
    loadOpts.numVisibleTasks = launchState.launchedNumVisibleTasks;
    loadOpts.numVisibleTaskThumbnails = launchState.launchedNumVisibleThumbnails;
    loader.loadTasks(this, loadPlan, loadOpts);
    TaskStack stack = loadPlan.getTaskStack();
    int numStackTasks = stack.getStackTaskCount();
    boolean showDeferredAnimation = numStackTasks > 0;
    EventBus.getDefault().send(new ConfigurationChangedEvent(true, /* fromMultiWindow */
    false, /* fromDeviceOrientationChange */
    false, /* fromDisplayDensityChange */
    numStackTasks > 0));
    EventBus.getDefault().send(new MultiWindowStateChangedEvent(isInMultiWindowMode, showDeferredAnimation, stack));
}

Example 34 with TaskStack

use of com.android.systemui.recents.model.TaskStack in project android_frameworks_base by AOSPA.

the class RecentsImpl method getThumbnailTransitionTransform.

/**
     * Returns the transition rect for the given task id.
     */
private TaskViewTransform getThumbnailTransitionTransform(TaskStackView stackView, Task runningTaskOut, Rect windowOverrideRect) {
    // Find the running task in the TaskStack
    TaskStack stack = stackView.getStack();
    Task launchTask = stack.getLaunchTarget();
    if (launchTask != null) {
        runningTaskOut.copyFrom(launchTask);
    } else {
        // If no task is specified or we can not find the task just use the front most one
        launchTask = stack.getStackFrontMostTask(true);
        runningTaskOut.copyFrom(launchTask);
    }
    // Get the transform for the running task
    stackView.updateLayoutAlgorithm(true);
    stackView.updateToInitialState();
    stackView.getStackAlgorithm().getStackTransformScreenCoordinates(launchTask, stackView.getScroller().getStackScroll(), mTmpTransform, null, windowOverrideRect);
    return mTmpTransform;
}

Example 35 with TaskStack

use of com.android.systemui.recents.model.TaskStack in project android_frameworks_base by AOSPA.

the class TaskStackAnimationHelper method prepareForEnterAnimation.

/**
     * Prepares the stack views and puts them in their initial animation state while visible, before
     * the in-app enter animations start (after the window-transition completes).
     */
public void prepareForEnterAnimation() {
    RecentsConfiguration config = Recents.getConfiguration();
    RecentsActivityLaunchState launchState = config.getLaunchState();
    Resources res = mStackView.getResources();
    Resources appResources = mStackView.getContext().getApplicationContext().getResources();
    TaskStackLayoutAlgorithm stackLayout = mStackView.getStackAlgorithm();
    TaskStackViewScroller stackScroller = mStackView.getScroller();
    TaskStack stack = mStackView.getStack();
    Task launchTargetTask = stack.getLaunchTarget();
    // Break early if there are no tasks
    if (stack.getTaskCount() == 0) {
        return;
    }
    int offscreenYOffset = stackLayout.mStackRect.height();
    int taskViewAffiliateGroupEnterOffset = res.getDimensionPixelSize(R.dimen.recents_task_stack_animation_affiliate_enter_offset);
    int launchedWhileDockingOffset = res.getDimensionPixelSize(R.dimen.recents_task_stack_animation_launched_while_docking_offset);
    boolean isLandscape = appResources.getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE;
    // Prepare each of the task views for their enter animation from front to back
    List<TaskView> taskViews = mStackView.getTaskViews();
    for (int i = taskViews.size() - 1; i >= 0; i--) {
        TaskView tv = taskViews.get(i);
        Task task = tv.getTask();
        boolean currentTaskOccludesLaunchTarget = launchTargetTask != null && launchTargetTask.group != null && launchTargetTask.group.isTaskAboveTask(task, launchTargetTask);
        boolean hideTask = launchTargetTask != null && launchTargetTask.isFreeformTask() && task.isFreeformTask();
        // Get the current transform for the task, which will be used to position it offscreen
        stackLayout.getStackTransform(task, stackScroller.getStackScroll(), mTmpTransform, null);
        if (hideTask) {
            tv.setVisibility(View.INVISIBLE);
        } else if (launchState.launchedFromApp && !launchState.launchedViaDockGesture) {
            if (task.isLaunchTarget) {
                tv.onPrepareLaunchTargetForEnterAnimation();
            } else if (currentTaskOccludesLaunchTarget) {
                // Move the task view slightly lower so we can animate it in
                mTmpTransform.rect.offset(0, taskViewAffiliateGroupEnterOffset);
                mTmpTransform.alpha = 0f;
                mStackView.updateTaskViewToTransform(tv, mTmpTransform, AnimationProps.IMMEDIATE);
                tv.setClipViewInStack(false);
            }
        } else if (launchState.launchedFromHome) {
            // Move the task view off screen (below) so we can animate it in
            mTmpTransform.rect.offset(0, offscreenYOffset);
            mTmpTransform.alpha = 0f;
            mStackView.updateTaskViewToTransform(tv, mTmpTransform, AnimationProps.IMMEDIATE);
        } else if (launchState.launchedViaDockGesture) {
            int offset = isLandscape ? launchedWhileDockingOffset : (int) (offscreenYOffset * 0.9f);
            mTmpTransform.rect.offset(0, offset);
            mTmpTransform.alpha = 0f;
            mStackView.updateTaskViewToTransform(tv, mTmpTransform, AnimationProps.IMMEDIATE);
        }
    }
}