Introduce eCanOccludePresentation layer flag (896f3a25) · Commits · e / os / android_frameworks_base

core/java/android/view/InputWindowHandle.java

+8 −0

Original line number	Diff line number	Diff line
		@@ -161,6 +161,12 @@ public final class InputWindowHandle {
		*/
		public float alpha;

		/**
		* Sets a property on this window indicating that its visible region should be considered when
		* computing TrustedPresentation Thresholds.
		*/
		public boolean canOccludePresentation;

		/**
		* The input token for the window to which focus should be transferred when this input window
		* can be successfully focused. If null, this input window will not transfer its focus to
		@@ -205,6 +211,7 @@ public final class InputWindowHandle {
		focusTransferTarget = other.focusTransferTarget;
		contentSize = new Size(other.contentSize.getWidth(), other.contentSize.getHeight());
		alpha = other.alpha;
		canOccludePresentation = other.canOccludePresentation;
		}

		@Override
		@@ -219,6 +226,7 @@ public final class InputWindowHandle {
		.append(", isClone=").append((inputConfig & InputConfig.CLONE) != 0)
		.append(", contentSize=").append(contentSize)
		.append(", alpha=").append(alpha)
		.append(", canOccludePresentation=").append(canOccludePresentation)
		.toString();

		}

core/java/android/view/SurfaceControl.java

+47 −0

Original line number	Diff line number	Diff line
		@@ -168,6 +168,8 @@ public final class SurfaceControl implements Parcelable {
		boolean isTrustedOverlay);
		private static native void nativeSetDropInputMode(
		long transactionObj, long nativeObject, int flags);
		private static native void nativeSetCanOccludePresentation(long transactionObj,
		long nativeObject, boolean canOccludePresentation);
		private static native void nativeSurfaceFlushJankData(long nativeSurfaceObject);
		private static native boolean nativeClearContentFrameStats(long nativeObject);
		private static native boolean nativeGetContentFrameStats(long nativeObject, WindowContentFrameStats outStats);
		@@ -588,6 +590,28 @@ public final class SurfaceControl implements Parcelable {
		*/
		public static final int DISPLAY_DECORATION = 0x00000200;

		/**
		* Ignore any destination frame set on the layer. This is used when the buffer scaling mode
		* is freeze and the destination frame is applied asynchronously with the buffer submission.
		* This is needed to maintain compatibility for SurfaceView scaling behavior.
		* See SurfaceView scaling behavior for more details.
		* @hide
		*/
		public static final int IGNORE_DESTINATION_FRAME = 0x00000400;

		/**
		* Special casing for layer that is a refresh rate indicator
		* @hide
		*/
		public static final int LAYER_IS_REFRESH_RATE_INDICATOR = 0x00000800;

		/**
		* Sets a property on this layer indicating that its visible region should be considered when
		* computing TrustedPresentation Thresholds
		* @hide
		*/
		public static final int CAN_OCCLUDE_PRESENTATION = 0x00001000;

		/**
		* Surface creation flag: Creates a surface where color components are interpreted
		* as "non pre-multiplied" by their alpha channel. Of course this flag is
		@@ -4162,6 +4186,29 @@ public final class SurfaceControl implements Parcelable {
		return this;
		}

		/**
		* Sets a property on this SurfaceControl and all its children indicating that the visible
		* region of this SurfaceControl should be considered when computing TrustedPresentation
		* Thresholds.
		* <p>
		* API Guidance:
		* The goal of this API is to identify windows that can be used to occlude content on
		* another window. This includes windows controlled by the user or the system. If the window
		* is transient, like Toast or notification shade, the window should not set this flag since
		* the user or the app cannot use the window to occlude content in a persistent manner. All
		* apps should have this flag set.
		* <p>
		* The caller must hold the ACCESS_SURFACE_FLINGER permission.
		* @hide
		*/
		public Transaction setCanOccludePresentation(SurfaceControl sc,
		boolean canOccludePresentation) {
		checkPreconditions(sc);
		final int value = (canOccludePresentation) ? CAN_OCCLUDE_PRESENTATION : 0;
		nativeSetFlags(mNativeObject, sc.mNativeObject, value, CAN_OCCLUDE_PRESENTATION);
		return this;
		}

		/**
		* Sends a flush jank data transaction for the given surface.
		* @hide

core/jni/android_hardware_input_InputWindowHandle.cpp

+6 −0

Original line number	Diff line number	Diff line
		@@ -75,6 +75,7 @@ static struct {
		jfieldID windowToken;
		jfieldID focusTransferTarget;
		jfieldID alpha;
		jfieldID canOccludePresentation;
		} gInputWindowHandleClassInfo;

		static struct {
		@@ -327,6 +328,8 @@ jobject android_view_InputWindowHandle_fromWindowInfo(JNIEnv* env, gui::WindowIn
		javaObjectForIBinder(env, windowInfo.windowToken));

		env->SetFloatField(inputWindowHandle, gInputWindowHandleClassInfo.alpha, windowInfo.alpha);
		env->SetBooleanField(inputWindowHandle, gInputWindowHandleClassInfo.canOccludePresentation,
		windowInfo.canOccludePresentation);

		return inputWindowHandle;
		}
		@@ -451,6 +454,9 @@ int register_android_view_InputWindowHandle(JNIEnv* env) {

		GET_FIELD_ID(gInputWindowHandleClassInfo.alpha, clazz, "alpha", "F");

		GET_FIELD_ID(gInputWindowHandleClassInfo.canOccludePresentation, clazz,
		"canOccludePresentation", "Z");

		jclass surfaceControlClazz;
		FIND_CLASS(surfaceControlClazz, "android/view/SurfaceControl");
		GET_FIELD_ID(gInputWindowHandleClassInfo.touchableRegionSurfaceControl.mNativeObject,