Merge "Prevent setting the launch task id when docking." into nyc-dev

            if (stack.getTaskCount() > 0) {

                // Only preload the icon (but not the thumbnail since it may not have been taken for

                // the pausing activity)

                preloadIcon(runningTask);

                preloadIcon(runningTask.id);

                // At this point, we don't know anything about the stack state.  So only calculate

                // the dimensions of the thumbnail that we need for the transition into Recents, but

    /**

     * Preloads the icon of a task.

     */

    private void preloadIcon(ActivityManager.RunningTaskInfo task) {

    private void preloadIcon(int runningTaskId) {

        // Ensure that we load the running task's icon

        RecentsTaskLoadPlan.Options launchOpts = new RecentsTaskLoadPlan.Options();

        launchOpts.runningTaskId = task.id;

        launchOpts.runningTaskId = runningTaskId;

        launchOpts.loadThumbnails = false;

        launchOpts.onlyLoadForCache = true;

        Recents.getTaskLoader().loadTasks(mContext, sInstanceLoadPlan, launchOpts);

    private ActivityOptions getThumbnailTransitionActivityOptions(

            ActivityManager.RunningTaskInfo runningTask, TaskStackView stackView,

                    Rect windowOverrideRect) {

        if (runningTask.stackId == FREEFORM_WORKSPACE_STACK_ID) {

        if (runningTask != null && runningTask.stackId == FREEFORM_WORKSPACE_STACK_ID) {

            ArrayList<AppTransitionAnimationSpec> specs = new ArrayList<>();

            ArrayList<Task> tasks = stackView.getStack().getStackTasks();

            TaskStackLayoutAlgorithm stackLayout = stackView.getStackAlgorithm();

        RecentsTaskLoader loader = Recents.getTaskLoader();

        RecentsActivityLaunchState launchState = Recents.getConfiguration().getLaunchState();

        int runningTaskId = !mLaunchedWhileDocking && (runningTask != null)

                ? runningTask.id

                : -1;

        // In the case where alt-tab is triggered, we never get a preloadRecents() call, so we

        // should always preload the tasks now. If we are dragging in recents, reload them as

        // the stacks might have changed.

            sInstanceLoadPlan = loader.createLoadPlan(mContext);

        }

        if (mLaunchedWhileDocking || mTriggeredFromAltTab || !sInstanceLoadPlan.hasTasks()) {

            loader.preloadTasks(sInstanceLoadPlan, runningTask.id, !isHomeStackVisible);

            loader.preloadTasks(sInstanceLoadPlan, runningTaskId, !isHomeStackVisible);

        }

        TaskStack stack = sInstanceLoadPlan.getTaskStack();

        launchState.launchedFromApp = useThumbnailTransition || mLaunchedWhileDocking;

        launchState.launchedViaDockGesture = mLaunchedWhileDocking;

        launchState.launchedViaDragGesture = mDraggingInRecents;

        launchState.launchedToTaskId = (runningTask != null) ? runningTask.id : -1;

        launchState.launchedToTaskId = runningTaskId;

        launchState.launchedWithAltTab = mTriggeredFromAltTab;

        // Preload the icon (this will be a null-op if we have preloaded the icon already in

        // preloadRecents())

        preloadIcon(runningTask);

        preloadIcon(runningTaskId);

        // Update the header bar if necessary

        Rect windowOverrideRect = getWindowRectOverride(growTarget);