Prevent a11y seeing behind tasks w/modal windows. (ac9ad700) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/wm/AccessibilityController.java

+10 −5

Original line number	Diff line number	Diff line
		@@ -1071,14 +1071,15 @@ final class AccessibilityController {
		Region.Op.REVERSE_DIFFERENCE);
		}

		// We figured out what is touchable for the entire screen - done.
		if (unaccountedSpace.isEmpty()) {
		break;
		}

		// If a window is modal it prevents other windows from being touched
		if ((flags & (WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
		\| WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL)) == 0) {
		// Account for all space in the task, whether the windows in it are
		// touchable or not. The modal window blocks all touches from the task's
		// area.
		unaccountedSpace.op(windowState.getDisplayFrameLw(), unaccountedSpace,
		Region.Op.REVERSE_DIFFERENCE);

		if (task != null) {
		// If the window is associated with a particular task, we can skip the
		// rest of the windows for that task.
		@@ -1090,6 +1091,10 @@ final class AccessibilityController {
		break;
		}
		}
		// We figured out what is touchable for the entire screen - done.
		if (unaccountedSpace.isEmpty()) {
		break;
		}
		}

		// Always report the focused window.