am 9823723d: Merge "Cannot pan in browser if magnification is enabled." into jb-mr1-dev (9fcdd729) · Commits · e / os / android_frameworks_base

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

+18 −4

Original line number	Diff line number	Diff line
		@@ -176,6 +176,8 @@ public final class ScreenMagnifier implements EventStreamTransformation {
		private PointerCoords[] mTempPointerCoords;
		private PointerProperties[] mTempPointerProperties;

		private long mDelegatingStateDownTime;

		public ScreenMagnifier(Context context) {
		mContext = context;
		mWindowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
		@@ -265,10 +267,15 @@ public final class ScreenMagnifier implements EventStreamTransformation {

		private void handleMotionEventStateDelegating(MotionEvent event,
		MotionEvent rawEvent, int policyFlags) {
		if (event.getActionMasked() == MotionEvent.ACTION_UP) {
		switch (event.getActionMasked()) {
		case MotionEvent.ACTION_DOWN: {
		mDelegatingStateDownTime = event.getDownTime();
		} break;
		case MotionEvent.ACTION_UP: {
		if (mDetectingStateHandler.mDelayedEventQueue == null) {
		transitionToState(STATE_DETECTING);
		}
		} break;
		}
		if (mNext != null) {
		// If the event is within the magnified portion of the screen we have
		@@ -295,6 +302,13 @@ public final class ScreenMagnifier implements EventStreamTransformation {
		coords, 0, 0, 1.0f, 1.0f, event.getDeviceId(), 0, event.getSource(),
		event.getFlags());
		}
		// We cache some events to see if the user wants to trigger magnification.
		// If no magnification is triggered we inject these events with adjusted
		// time and down time to prevent subsequent transformations being confused
		// by stale events. After the cached events, which always have a down, are
		// injected we need to also update the down time of all subsequent non cached
		// events. All delegated events cached and non-cached are delivered here.
		event.setDownTime(mDelegatingStateDownTime);
		mNext.onMotionEvent(event, rawEvent, policyFlags);
		}
		}