[DO NOT MERGE] Bring back touch events for double tap and double tap and hold. am: 9e83d07824 (db5409ae) · Commits · e / os / android_frameworks_base

core/java/android/view/MotionEvent.java

+29 −0

Original line number	Diff line number	Diff line
		@@ -486,6 +486,21 @@ public final class MotionEvent extends InputEvent implements Parcelable {
		*/
		public static final int FLAG_TAINTED = 0x80000000;

		/**
		* Private flag indicating that this event was synthesized by the system and should be delivered
		* to the accessibility focused view first. When being dispatched such an event is not handled
		* by predecessors of the accessibility focused view and after the event reaches that view the
		* flag is cleared and normal event dispatch is performed. This ensures that the platform can
		* click on any view that has accessibility focus which is semantically equivalent to asking the
		* view to perform a click accessibility action but more generic as views not implementing click
		* action correctly can still be activated.
		*
		* @hide
		* @see #isTargetAccessibilityFocus()
		* @see #setTargetAccessibilityFocus(boolean)
		*/
		public static final int FLAG_TARGET_ACCESSIBILITY_FOCUS = 0x40000000;

		/**
		* Flag indicating the motion event intersected the top edge of the screen.
		*/
		@@ -2139,6 +2154,20 @@ public final class MotionEvent extends InputEvent implements Parcelable {
		nativeSetFlags(mNativePtr, tainted ? flags \| FLAG_TAINTED : flags & ~FLAG_TAINTED);
		}

		/** @hide */
		public boolean isTargetAccessibilityFocus() {
		final int flags = getFlags();
		return (flags & FLAG_TARGET_ACCESSIBILITY_FOCUS) != 0;
		}

		/** @hide */
		public void setTargetAccessibilityFocus(boolean targetsFocus) {
		final int flags = getFlags();
		nativeSetFlags(mNativePtr, targetsFocus
		? flags \| FLAG_TARGET_ACCESSIBILITY_FOCUS
		: flags & ~FLAG_TARGET_ACCESSIBILITY_FOCUS);
		}

		/** @hide */
		public final boolean isHoverExitPending() {
		final int flags = getFlags();

core/java/android/view/View.java

+8 −0

Original line number	Diff line number	Diff line
		@@ -14274,6 +14274,14 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
		*/
		public boolean dispatchTouchEvent(MotionEvent event) {
		// If the event should be handled by accessibility focus first.
		if (event.isTargetAccessibilityFocus()) {
		// We don't have focus or no virtual descendant has it, do not handle the event.
		if (!isAccessibilityFocusedViewOrHost()) {
		return false;
		}
		// We have focus and got the event, then use normal event dispatch.
		event.setTargetAccessibilityFocus(false);
		}
		boolean result = false;

		if (mInputEventConsistencyVerifier != null) {

core/java/android/view/ViewGroup.java

+77 −4

Original line number	Diff line number	Diff line
		@@ -2048,8 +2048,26 @@ public abstract class ViewGroup extends View implements ViewParent, ViewManager
		for (int i = childrenCount - 1; i >= 0; i--) {
		final int childIndex = getAndVerifyPreorderedIndex(childrenCount, i, customOrder);
		final View child = getAndVerifyPreorderedView(preorderedList, children, childIndex);
		View childWithAccessibilityFocus =
		event.isTargetAccessibilityFocus()
		? findChildWithAccessibilityFocus()
		: null;

		if (!child.canReceivePointerEvents()
		\|\| !isTransformedTouchPointInView(x, y, child, null)) {

		// If there is a view that has accessibility focus we want it
		// to get the event first and if not handled we will perform a
		// normal dispatch. We may do a double iteration but this is
		// safer given the timeframe.
		if (childWithAccessibilityFocus != null) {
		if (childWithAccessibilityFocus != child) {
		continue;
		}
		childWithAccessibilityFocus = null;
		i = childrenCount - 1;
		}
		event.setTargetAccessibilityFocus(false);
		continue;
		}
		final PointerIcon pointerIcon =
		@@ -2617,6 +2635,12 @@ public abstract class ViewGroup extends View implements ViewParent, ViewManager
		mInputEventConsistencyVerifier.onTouchEvent(ev, 1);
		}

		// If the event targets the accessibility focused view and this is it, start
		// normal event dispatch. Maybe a descendant is what will handle the click.
		if (ev.isTargetAccessibilityFocus() && isAccessibilityFocusedViewOrHost()) {
		ev.setTargetAccessibilityFocus(false);
		}

		boolean handled = false;
		if (onFilterTouchEventForSecurity(ev)) {
		final int action = ev.getAction();
		@@ -2647,6 +2671,13 @@ public abstract class ViewGroup extends View implements ViewParent, ViewManager
		// so this view group continues to intercept touches.
		intercepted = true;
		}

		// If intercepted, start normal event dispatch. Also if there is already
		// a view that is handling the gesture, do normal event dispatch.
		if (intercepted \|\| mFirstTouchTarget != null) {
		ev.setTargetAccessibilityFocus(false);
		}

		// Check for cancelation.
		final boolean canceled = resetCancelNextUpFlag(this)
		\|\| actionMasked == MotionEvent.ACTION_CANCEL;
		@@ -2658,6 +2689,14 @@ public abstract class ViewGroup extends View implements ViewParent, ViewManager
		TouchTarget newTouchTarget = null;
		boolean alreadyDispatchedToNewTouchTarget = false;
		if (!canceled && !intercepted) {
		// If the event is targeting accessibility focus we give it to the
		// view that has accessibility focus and if it does not handle it
		// we clear the flag and dispatch the event to all children as usual.
		// We are looking up the accessibility focused host to avoid keeping
		// state since these events are very rare.
		View childWithAccessibilityFocus = ev.isTargetAccessibilityFocus()
		? findChildWithAccessibilityFocus() : null;

		if (actionMasked == MotionEvent.ACTION_DOWN
		\|\| (split && actionMasked == MotionEvent.ACTION_POINTER_DOWN)
		\|\| actionMasked == MotionEvent.ACTION_HOVER_MOVE) {
		@@ -2720,6 +2759,10 @@ public abstract class ViewGroup extends View implements ViewParent, ViewManager
		alreadyDispatchedToNewTouchTarget = true;
		break;
		}

		// The accessibility focus didn't handle the event, so clear
		// the flag and do a normal dispatch to all children.
		ev.setTargetAccessibilityFocus(false);
		}
		if (preorderedList != null) preorderedList.clear();
		}
		@@ -2803,6 +2846,34 @@ public abstract class ViewGroup extends View implements ViewParent, ViewManager
		return buildOrderedChildList();
		}

		/**
		* Finds the child which has accessibility focus.
		*
		* @return The child that has focus.
		*/
		private View findChildWithAccessibilityFocus() {
		ViewRootImpl viewRoot = getViewRootImpl();
		if (viewRoot == null) {
		return null;
		}

		View current = viewRoot.getAccessibilityFocusedHost();
		if (current == null) {
		return null;
		}

		ViewParent parent = current.getParent();
		while (parent instanceof View) {
		if (parent == this) {
		return current;
		}
		current = (View) parent;
		parent = current.getParent();
		}

		return null;
		}

		/**
		* Resets all touch state in preparation for a new cycle.
		*/
		@@ -3257,9 +3328,10 @@ public abstract class ViewGroup extends View implements ViewParent, ViewManager
		break;
		}
		default:
		throw new IllegalStateException("descendant focusability must be "
		+ "one of FOCUS_BEFORE_DESCENDANTS, FOCUS_AFTER_DESCENDANTS, FOCUS_BLOCK_DESCENDANTS "
		+ "but is " + descendantFocusability);
		throw new IllegalStateException(
		"descendant focusability must be one of FOCUS_BEFORE_DESCENDANTS,"
		+ " FOCUS_AFTER_DESCENDANTS, FOCUS_BLOCK_DESCENDANTS but is "
		+ descendantFocusability);
		}
		if (result && !isLayoutValid() && ((mPrivateFlags & PFLAG_WANTS_FOCUS) == 0)) {
		mPrivateFlags \|= PFLAG_WANTS_FOCUS;
		@@ -4925,7 +4997,8 @@ public abstract class ViewGroup extends View implements ViewParent, ViewManager
		if (params == null) {
		params = generateDefaultLayoutParams();
		if (params == null) {
		throw new IllegalArgumentException("generateDefaultLayoutParams() cannot return null");
		throw new IllegalArgumentException(
		"generateDefaultLayoutParams() cannot return null");
		}
		}
		addView(child, index, params);

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

+96 −0

Original line number	Diff line number	Diff line
		@@ -56,6 +56,8 @@ import android.content.pm.PackageManagerInternal;
		import android.content.pm.ResolveInfo;
		import android.content.pm.ServiceInfo;
		import android.database.ContentObserver;
		import android.graphics.Point;
		import android.graphics.Rect;
		import android.graphics.Region;
		import android.hardware.display.DisplayManager;
		import android.hardware.fingerprint.IFingerprintService;
		@@ -190,6 +192,9 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub
		private final SimpleStringSplitter mStringColonSplitter =
		new SimpleStringSplitter(COMPONENT_NAME_SEPARATOR);

		private final Rect mTempRect = new Rect();
		private final Rect mTempRect1 = new Rect();

		private final PackageManager mPackageManager;

		private final PowerManager mPowerManager;
		@@ -246,6 +251,7 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub
		//TODO: Remove this hack
		private boolean mInitialized;

		private Point mTempPoint;
		private boolean mIsAccessibilityButtonShown;

		private AccessibilityUserState getCurrentUserStateLocked() {
		@@ -1067,6 +1073,18 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub
		return motionEventInjector;
		}

		/**
		* Gets a point within the accessibility focused node where we can send down
		* and up events to perform a click.
		*
		* @param outPoint The click point to populate.
		* @return Whether accessibility a click point was found and set.
		*/
		// TODO: (multi-display) Make sure this works for multiple displays.
		public boolean getAccessibilityFocusClickPointInScreen(Point outPoint) {
		return getInteractionBridge().getAccessibilityFocusClickPointInScreenNotLocked(outPoint);
		}

		/**
		* Perform an accessibility action on the view that currently has accessibility focus.
		* Has no effect if no item has accessibility focus, if the item with accessibility
		@@ -1081,6 +1099,32 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub
		return getInteractionBridge().performActionOnAccessibilityFocusedItemNotLocked(action);
		}

		/**
		* Returns true if accessibility focus is confined to the active window.
		*/
		public boolean accessibilityFocusOnlyInActiveWindow() {
		synchronized (mLock) {
		return mA11yWindowManager.isTrackingWindowsLocked();
		}
		}

		/**
		* Gets the bounds of a window.
		*
		* @param outBounds The output to which to write the bounds.
		*/
		boolean getWindowBounds(int windowId, Rect outBounds) {
		IBinder token;
		synchronized (mLock) {
		token = getWindowToken(windowId, mCurrentUserId);
		}
		mWindowManagerService.getWindowFrame(token, outBounds);
		if (!outBounds.isEmpty()) {
		return true;
		}
		return false;
		}

		public int getActiveWindowId() {
		return mA11yWindowManager.getActiveWindowId(mCurrentUserId);
		}
		@@ -1824,9 +1868,11 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub
		for (int i = 0; !observingWindows && (i < boundServiceCount); i++) {
		AccessibilityServiceConnection boundService = boundServices.get(i);
		if (boundService.canRetrieveInteractiveWindowsLocked()) {
		userState.setAccessibilityFocusOnlyInActiveWindow(false);
		observingWindows = true;
		}
		}
		userState.setAccessibilityFocusOnlyInActiveWindow(true);

		// Gets all valid displays and start tracking windows of each display if there is at least
		// one bound service that can retrieve window content.
		@@ -2929,6 +2975,19 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub
		mDefaultDisplay = displayManager.getDisplay(Display.DEFAULT_DISPLAY);
		}

		/**
		* Gets a point within the accessibility focused node where we can send down and up events
		* to perform a click.
		*
		* @param outPoint The click point to populate.
		* @return Whether accessibility a click point was found and set.
		*/
		// TODO: (multi-display) Make sure this works for multiple displays.
		boolean getAccessibilityFocusClickPointInScreen(Point outPoint) {
		return getInteractionBridge()
		.getAccessibilityFocusClickPointInScreenNotLocked(outPoint);
		}

		/**
		* Perform an accessibility action on the view that currently has accessibility focus.
		* Has no effect if no item has accessibility focus, if the item with accessibility
		@@ -2947,6 +3006,43 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub
		return focus.performAction(action.getId());
		}

		public boolean getAccessibilityFocusClickPointInScreenNotLocked(Point outPoint) {
		AccessibilityNodeInfo focus = getAccessibilityFocusNotLocked();
		if (focus == null) {
		return false;
		}

		synchronized (mLock) {
		Rect boundsInScreen = mTempRect;
		focus.getBoundsInScreen(boundsInScreen);

		// Apply magnification if needed.
		MagnificationSpec spec = getCompatibleMagnificationSpecLocked(focus.getWindowId());
		if (spec != null && !spec.isNop()) {
		boundsInScreen.offset((int) -spec.offsetX, (int) -spec.offsetY);
		boundsInScreen.scale(1 / spec.scale);
		}

		// Clip to the window bounds.
		Rect windowBounds = mTempRect1;
		getWindowBounds(focus.getWindowId(), windowBounds);
		if (!boundsInScreen.intersect(windowBounds)) {
		return false;
		}

		// Clip to the screen bounds.
		Point screenSize = mTempPoint;
		mDefaultDisplay.getRealSize(screenSize);
		if (!boundsInScreen.intersect(0, 0, screenSize.x, screenSize.y)) {
		return false;
		}

		outPoint.set(boundsInScreen.centerX(), boundsInScreen.centerY());
		}

		return true;
		}

		private AccessibilityNodeInfo getAccessibilityFocusNotLocked() {
		final int focusedWindowId;
		synchronized (mLock) {

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

+8 −0

Original line number	Diff line number	Diff line
		@@ -104,6 +104,7 @@ class AccessibilityUserState {
		private boolean mIsDisplayMagnificationEnabled;
		private boolean mIsFilterKeyEventsEnabled;
		private boolean mIsPerformGesturesEnabled;
		private boolean mAccessibilityFocusOnlyInActiveWindow;
		private boolean mIsTextHighContrastEnabled;
		private boolean mIsTouchExplorationEnabled;
		private boolean mServiceHandlesDoubleTap;
		@@ -685,6 +686,13 @@ class AccessibilityUserState {
		mIsPerformGesturesEnabled = enabled;
		}

		public boolean isAccessibilityFocusOnlyInActiveWindow() {
		return mAccessibilityFocusOnlyInActiveWindow;
		}

		public void setAccessibilityFocusOnlyInActiveWindow(boolean enabled) {
		mAccessibilityFocusOnlyInActiveWindow = enabled;
		}
		public ComponentName getServiceChangingSoftKeyboardModeLocked() {
		return mServiceChangingSoftKeyboardMode;
		}