Merge "Report folding features to letterboxed apps." into udc-dev

            final Rect taskBounds = taskConfig.windowConfiguration.getBounds();

            final WindowManager windowManager = Objects.requireNonNull(

                    context.getSystemService(WindowManager.class));

            final Rect currentBounds = windowManager.getCurrentWindowMetrics().getBounds();

            final Rect maxBounds = windowManager.getMaximumWindowMetrics().getBounds();

            boolean isTaskExpanded = maxBounds.equals(taskBounds);

            boolean isActivityExpanded = maxBounds.equals(currentBounds);

            /*

             * We need to proxy being in full screen because when a user enters PiP and exits PiP

             * the task windowingMode will report multi-window/pinned until the transition is

             * finished in WM Shell.

             * maxBounds == taskWindowBounds is a proxy check to verify the window is full screen

             * For tasks that are letterboxed, we use currentBounds == maxBounds to filter these

             * out.

             */

            // TODO(b/262900133) remove currentBounds check when letterboxed apps report bounds.

            // currently we don't want to report to letterboxed apps since they do not update the

            // window bounds when the Activity is moved.  An inaccurate fold will be reported so

            // we skip.

            return isTaskExpanded && (isActivityExpanded

                    || mTaskFragmentOrganizer.isActivityEmbedded(activityToken));

            return isTaskExpanded;

        } else {

            // TODO(b/242674941): use task windowing mode for window context that associates with

            //  activity.