Update windows before sending a window state change event (fd138896) · Commits · e / os / android_frameworks_base

core/java/android/view/WindowManagerInternal.java

+5 −0

Original line number	Diff line number	Diff line
		@@ -287,4 +287,9 @@ public abstract class WindowManagerInternal {
		* @return True if and only if the docked divider is currently in resize mode.
		*/
		public abstract boolean isDockedDividerResizing();

		/**
		* Requests the window manager to recompute the windows for accessibility.
		*/
		public abstract void computeWindowsForAccessibility();
		}

services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java

+21 −3

Original line number	Diff line number	Diff line
		@@ -426,6 +426,8 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub {

		@Override
		public boolean sendAccessibilityEvent(AccessibilityEvent event, int userId) {
		boolean dispatchEvent = false;

		synchronized (mLock) {
		// We treat calls from a profile as if made by its parent as profiles
		// share the accessibility state of the parent. The call below
		@@ -440,15 +442,31 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub {
		mSecurityPolicy.updateActiveAndAccessibilityFocusedWindowLocked(event.getWindowId(),
		event.getSourceNodeId(), event.getEventType(), event.getAction());
		mSecurityPolicy.updateEventSourceLocked(event);
		notifyAccessibilityServicesDelayedLocked(event, false);
		notifyAccessibilityServicesDelayedLocked(event, true);
		dispatchEvent = true;
		}
		if (mHasInputFilter && mInputFilter != null) {
		mMainHandler.obtainMessage(MainHandler.MSG_SEND_ACCESSIBILITY_EVENT_TO_INPUT_FILTER,
		AccessibilityEvent.obtain(event)).sendToTarget();
		}
		event.recycle();
		}

		if (dispatchEvent) {
		// Make sure clients receiving this event will be able to get the
		// current state of the windows as the window manager may be delaying
		// the computation for performance reasons.
		if (event.getEventType() == AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED
		&& mWindowsForAccessibilityCallback != null) {
		WindowManagerInternal wm = LocalServices.getService(WindowManagerInternal.class);
		wm.computeWindowsForAccessibility();
		}
		synchronized (mLock) {
		notifyAccessibilityServicesDelayedLocked(event, false);
		notifyAccessibilityServicesDelayedLocked(event, true);
		}
		}

		event.recycle();

		return (OWN_PROCESS_ID != Binder.getCallingPid());
		}

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

+10 −0

Original line number	Diff line number	Diff line
		@@ -115,6 +115,16 @@ final class AccessibilityController {
		}
		}

		public void performComputeChangedWindowsNotLocked() {
		WindowsForAccessibilityObserver observer = null;
		synchronized (mWindowManagerService) {
		observer = mWindowsForAccessibilityObserver;
		}
		if (observer != null) {
		observer.performComputeChangedWindowsNotLocked();
		}
		}

		public void setMagnificationSpecLocked(MagnificationSpec spec) {
		if (mDisplayMagnifier != null) {
		mDisplayMagnifier.setMagnificationSpecLocked(spec);

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

+11 −0

Original line number	Diff line number	Diff line
		@@ -11525,5 +11525,16 @@ public class WindowManagerService extends IWindowManager.Stub
		return getDefaultDisplayContentLocked().getDockedDividerController().isResizing();
		}
		}

		@Override
		public void computeWindowsForAccessibility() {
		final AccessibilityController accessibilityController;
		synchronized (mWindowMap) {
		accessibilityController = mAccessibilityController;
		}
		if (accessibilityController != null) {
		accessibilityController.performComputeChangedWindowsNotLocked();
		}
		}
		}
		}