Support set window size API (9555ceb3) · Commits · e / os / android_frameworks_base

core/res/res/values/dimens.xml

+3 −0

Original line number	Diff line number	Diff line
		@@ -606,6 +606,9 @@
		<!-- The padding ratio of the Accessibility icon foreground drawable -->
		<item name="accessibility_icon_foreground_padding_ratio" type="dimen">21.88%</item>

		<!-- The minimum window size of the accessibility window magnifier -->
		<dimen name="accessibility_window_magnifier_min_size">122dp</dimen>

		<!-- Margin around the various security views -->
		<dimen name="keyguard_muliuser_selector_margin">8dp</dimen>

core/res/res/values/symbols.xml

+1 −0

Original line number	Diff line number	Diff line
		@@ -4379,6 +4379,7 @@
		<java-symbol type="color" name="accessibility_focus_highlight_color" />
		<!-- Width of the outline stroke used by the accessibility focus rectangle -->
		<java-symbol type="dimen" name="accessibility_focus_highlight_stroke_width" />
		<java-symbol type="dimen" name="accessibility_window_magnifier_min_size" />

		<java-symbol type="bool" name="config_attachNavBarToAppDuringTransition" />

packages/SystemUI/src/com/android/systemui/accessibility/WindowMagnificationController.java

+86 −29

Original line number	Diff line number	Diff line
		@@ -43,6 +43,7 @@ import android.os.Handler;
		import android.os.RemoteException;
		import android.util.Log;
		import android.util.Range;
		import android.util.Size;
		import android.view.Choreographer;
		import android.view.Display;
		import android.view.Gravity;
		@@ -62,6 +63,8 @@ import android.view.accessibility.AccessibilityNodeInfo;
		import android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction;
		import android.view.accessibility.IRemoteMagnificationAnimationCallback;

		import androidx.core.math.MathUtils;

		import com.android.internal.annotations.VisibleForTesting;
		import com.android.internal.graphics.SfVsyncFrameCallbackProvider;
		import com.android.systemui.R;
		@@ -166,6 +169,7 @@ class WindowMagnificationController implements View.OnTouchListener, SurfaceHold
		private final Rect mMagnificationFrameBoundary = new Rect();
		// The top Y of the system gesture rect at the bottom. Set to -1 if it is invalid.
		private int mSystemGestureTop = -1;
		private int mMinWindowSize;

		private final WindowMagnificationAnimationController mAnimationController;
		private final SfVsyncFrameCallbackProvider mSfVsyncFrameProvider;
		@@ -208,8 +212,10 @@ class WindowMagnificationController implements View.OnTouchListener, SurfaceHold
		mBounceEffectDuration = mResources.getInteger(
		com.android.internal.R.integer.config_shortAnimTime);
		updateDimensions();
		setMagnificationFrameWith(mWindowBounds, mWindowBounds.width() / 2,
		mWindowBounds.height() / 2);

		final Size windowSize = getDefaultWindowSizeWithWindowBounds(mWindowBounds);
		setMagnificationFrame(windowSize.getWidth(), windowSize.getHeight(),
		mWindowBounds.width() / 2, mWindowBounds.height() / 2);
		computeBounceAnimationScale();

		mMirrorWindowControl = mirrorWindowControl;
		@@ -281,6 +287,8 @@ class WindowMagnificationController implements View.OnTouchListener, SurfaceHold
		R.dimen.magnification_drag_view_size);
		mOuterBorderSize = mResources.getDimensionPixelSize(
		R.dimen.magnification_outer_border_margin);
		mMinWindowSize = mResources.getDimensionPixelSize(
		com.android.internal.R.dimen.accessibility_window_magnifier_min_size);
		}

		private void computeBounceAnimationScale() {
		@@ -414,9 +422,12 @@ class WindowMagnificationController implements View.OnTouchListener, SurfaceHold
		return false;
		}
		mWindowBounds.set(currentWindowBounds);
		final Size windowSize = getDefaultWindowSizeWithWindowBounds(mWindowBounds);
		final float newCenterX = (getCenterX()) * mWindowBounds.width() / oldWindowBounds.width();
		final float newCenterY = (getCenterY()) * mWindowBounds.height() / oldWindowBounds.height();
		setMagnificationFrameWith(mWindowBounds, (int) newCenterX, (int) newCenterY);

		setMagnificationFrame(windowSize.getWidth(), windowSize.getHeight(), (int) newCenterX,
		(int) newCenterY);
		calculateMagnificationFrameBoundary();
		return true;
		}
		@@ -454,11 +465,6 @@ class WindowMagnificationController implements View.OnTouchListener, SurfaceHold

		mWindowBounds.set(currentWindowBounds);

		calculateMagnificationFrameBoundary();

		if (!isWindowVisible()) {
		return;
		}
		// Keep MirrorWindow position on the screen unchanged when device rotates 90°
		// clockwise or anti-clockwise.

		@@ -469,14 +475,13 @@ class WindowMagnificationController implements View.OnTouchListener, SurfaceHold
		} else if (rotationDegree == 270) {
		matrix.postTranslate(0, mWindowBounds.height());
		}
		// The rect of MirrorView is going to be transformed.
		LayoutParams params =
		(LayoutParams) mMirrorView.getLayoutParams();
		mTmpRect.set(params.x, params.y, params.x + params.width, params.y + params.height);
		final RectF transformedRect = new RectF(mTmpRect);

		final RectF transformedRect = new RectF(mMagnificationFrame);
		// The window frame is going to be transformed by the rotation matrix.
		transformedRect.inset(-mMirrorSurfaceMargin, -mMirrorSurfaceMargin);
		matrix.mapRect(transformedRect);
		moveWindowMagnifier(transformedRect.left - mTmpRect.left,
		transformedRect.top - mTmpRect.top);
		setWindowSizeAndCenter((int) transformedRect.width(), (int) transformedRect.height(),
		(int) transformedRect.centerX(), (int) transformedRect.centerY());
		}

		/** Returns the rotation degree change of two {@link Surface.Rotation} */
		@@ -573,16 +578,52 @@ class WindowMagnificationController implements View.OnTouchListener, SurfaceHold
		}
		}

		private void setMagnificationFrameWith(Rect windowBounds, int centerX, int centerY) {
		/**
		* Sets the window size with given width and height in pixels without changing the
		* window center. The width or the height will be clamped in the range
		* [{@link #mMinWindowSize}, screen width or height].
		*
		* @param width the window width in pixels
		* @param height the window height in pixels.
		*/
		public void setWindowSize(int width, int height) {
		setWindowSizeAndCenter(width, height, Float.NaN, Float.NaN);
		}

		void setWindowSizeAndCenter(int width, int height, float centerX, float centerY) {
		width = MathUtils.clamp(width, mMinWindowSize, mWindowBounds.width());
		height = MathUtils.clamp(height, mMinWindowSize, mWindowBounds.height());

		if (Float.isNaN(centerX)) {
		centerX = mMagnificationFrame.centerX();
		}
		if (Float.isNaN(centerX)) {
		centerY = mMagnificationFrame.centerY();
		}

		final int frameWidth = width - 2 * mMirrorSurfaceMargin;
		final int frameHeight = height - 2 * mMirrorSurfaceMargin;
		setMagnificationFrame(frameWidth, frameHeight, (int) centerX, (int) centerY);
		calculateMagnificationFrameBoundary();
		// Correct the frame position to ensure it is inside the boundary.
		updateMagnificationFramePosition(0, 0);
		modifyWindowMagnification(true);
		}

		private void setMagnificationFrame(int width, int height, int centerX, int centerY) {
		// Sets the initial frame area for the mirror and place it to the given center on the
		// display.
		final int initX = centerX - width / 2;
		final int initY = centerY - height / 2;
		mMagnificationFrame.set(initX, initY, initX + width, initY + height);
		}

		private Size getDefaultWindowSizeWithWindowBounds(Rect windowBounds) {
		int initSize = Math.min(windowBounds.width(), windowBounds.height()) / 2;
		initSize = Math.min(mResources.getDimensionPixelSize(R.dimen.magnification_max_frame_size),
		initSize);
		initSize += 2 * mMirrorSurfaceMargin;
		final int initX = centerX - initSize / 2;
		final int initY = centerY - initSize / 2;
		mMagnificationFrame.set(initX, initY, initX + initSize, initY + initSize);
		return new Size(initSize, initSize);
		}

		/**
		@@ -596,8 +637,7 @@ class WindowMagnificationController implements View.OnTouchListener, SurfaceHold
		}
		mTransaction.show(mMirrorSurface)
		.reparent(mMirrorSurface, mMirrorSurfaceView.getSurfaceControl());

		modifyWindowMagnification(mTransaction);
		modifyWindowMagnification(false);
		}

		private void addDragTouchListeners() {
		@@ -615,18 +655,25 @@ class WindowMagnificationController implements View.OnTouchListener, SurfaceHold
		}

		/**
		* Modifies the placement of the mirrored content when the position of mMirrorView is updated.
		* Modifies the placement of the mirrored content when the position or size of mMirrorView is
		* updated.
		*
		* @param computeWindowSize set to {@code true} to compute window size with
		* {@link #mMagnificationFrame}.
		*/
		private void modifyWindowMagnification(SurfaceControl.Transaction t) {
		private void modifyWindowMagnification(boolean computeWindowSize) {
		mSfVsyncFrameProvider.postFrameCallback(mMirrorViewGeometryVsyncCallback);
		updateMirrorViewLayout();
		updateMirrorViewLayout(computeWindowSize);
		}

		/**
		* Updates the layout params of MirrorView and translates MirrorView position when the view is
		* moved close to the screen edges.
		* Updates the layout params of MirrorView based on the size of {@link #mMagnificationFrame}
		* and translates MirrorView position when the view is moved close to the screen edges;
		*
		* @param computeWindowSize set to {@code true} to compute window size with
		* {@link #mMagnificationFrame}.
		*/
		private void updateMirrorViewLayout() {
		private void updateMirrorViewLayout(boolean computeWindowSize) {
		if (!isWindowVisible()) {
		return;
		}
		@@ -637,6 +684,10 @@ class WindowMagnificationController implements View.OnTouchListener, SurfaceHold
		(LayoutParams) mMirrorView.getLayoutParams();
		params.x = mMagnificationFrame.left - mMirrorSurfaceMargin;
		params.y = mMagnificationFrame.top - mMirrorSurfaceMargin;
		if (computeWindowSize) {
		params.width = mMagnificationFrame.width() + 2 * mMirrorSurfaceMargin;
		params.height = mMagnificationFrame.height() + 2 * mMirrorSurfaceMargin;
		}

		// Translates MirrorView position to make MirrorSurfaceView that is inside MirrorView
		// able to move close to the screen edges.
		@@ -899,7 +950,7 @@ class WindowMagnificationController implements View.OnTouchListener, SurfaceHold
		createMirrorWindow();
		showControls();
		} else {
		modifyWindowMagnification(mTransaction);
		modifyWindowMagnification(false);
		}
		}

		@@ -930,7 +981,7 @@ class WindowMagnificationController implements View.OnTouchListener, SurfaceHold
		return;
		}
		if (updateMagnificationFramePosition((int) offsetX, (int) offsetY)) {
		modifyWindowMagnification(mTransaction);
		modifyWindowMagnification(false);
		}
		}

		@@ -1014,9 +1065,15 @@ class WindowMagnificationController implements View.OnTouchListener, SurfaceHold
		pw.println(" mOverlapWithGestureInsets:" + mOverlapWithGestureInsets);
		pw.println(" mScale:" + mScale);
		pw.println(" mMirrorViewBounds:" + (isWindowVisible() ? mMirrorViewBounds : "empty"));
		pw.println(" mMagnificationFrameBoundary:"
		+ (isWindowVisible() ? mMagnificationFrameBoundary : "empty"));
		pw.println(" mMagnificationFrame:"
		+ (isWindowVisible() ? mMagnificationFrame : "empty"));
		pw.println(" mSourceBounds:"
		+ (isWindowVisible() ? mSourceBounds : "empty"));
		pw.println(" mSystemGestureTop:" + mSystemGestureTop);
		pw.println(" mMagnificationFrameOffsetX:" + mMagnificationFrameOffsetX);
		pw.println(" mMagnificationFrameOffsetY:" + mMagnificationFrameOffsetY);
		}

		private class MirrorWindowA11yDelegate extends View.AccessibilityDelegate {

packages/SystemUI/tests/src/com/android/systemui/accessibility/WindowMagnificationControllerTest.java

+117 −7

Original line number	Diff line number	Diff line
		@@ -88,6 +88,7 @@ import org.mockito.Mockito;
		import org.mockito.MockitoAnnotations;

		import java.util.List;
		import java.util.concurrent.atomic.AtomicInteger;

		@LargeTest
		@TestableLooper.RunWithLooper
		@@ -345,15 +346,17 @@ public class WindowMagnificationControllerTest extends SysuiTestCase {

		@Test
		public void onOrientationChanged_disabled_updateDisplayRotation() {
		final Display display = Mockito.spy(mContext.getDisplay());
		when(display.getRotation()).thenReturn(Surface.ROTATION_90);
		when(mContext.getDisplay()).thenReturn(display);
		final Rect windowBounds = new Rect(mWindowManager.getCurrentWindowMetrics().getBounds());
		// Rotate the window clockwise 90 degree.
		windowBounds.set(windowBounds.top, windowBounds.left, windowBounds.bottom,
		windowBounds.right);
		mWindowManager.setWindowBounds(windowBounds);
		final int newRotation = simulateRotateTheDevice();

		mInstrumentation.runOnMainSync(() -> {
		mWindowMagnificationController.onConfigurationChanged(ActivityInfo.CONFIG_ORIENTATION);
		});
		mInstrumentation.runOnMainSync(() -> mWindowMagnificationController.onConfigurationChanged(
		ActivityInfo.CONFIG_ORIENTATION));

		assertEquals(Surface.ROTATION_90, mWindowMagnificationController.mRotation);
		assertEquals(newRotation, mWindowMagnificationController.mRotation);
		}

		@Test
		@@ -603,6 +606,113 @@ public class WindowMagnificationControllerTest extends SysuiTestCase {
		ReferenceTestUtils.waitForCondition(() -> hasMagnificationOverlapFlag());
		}

		@Test
		public void setMinimumWindowSize_enabled_expectedWindowSize() {
		final int minimumWindowSize = mResources.getDimensionPixelSize(
		com.android.internal.R.dimen.accessibility_window_magnifier_min_size);
		final int expectedWindowHeight = minimumWindowSize;
		final int expectedWindowWidth = minimumWindowSize;
		mInstrumentation.runOnMainSync(
		() -> mWindowMagnificationController.enableWindowMagnificationInternal(Float.NaN,
		Float.NaN, Float.NaN));

		final AtomicInteger actualWindowHeight = new AtomicInteger();
		final AtomicInteger actualWindowWidth = new AtomicInteger();
		mInstrumentation.runOnMainSync(() -> {
		mWindowMagnificationController.setWindowSize(expectedWindowWidth, expectedWindowHeight);
		actualWindowHeight.set(mWindowManager.getLayoutParamsFromAttachedView().height);
		actualWindowWidth.set(mWindowManager.getLayoutParamsFromAttachedView().width);

		});

		assertEquals(expectedWindowHeight, actualWindowHeight.get());
		assertEquals(expectedWindowWidth, actualWindowWidth.get());
		}

		@Test
		public void setMinimumWindowSizeThenEnable_expectedWindowSize() {
		final int minimumWindowSize = mResources.getDimensionPixelSize(
		com.android.internal.R.dimen.accessibility_window_magnifier_min_size);
		final int expectedWindowHeight = minimumWindowSize;
		final int expectedWindowWidth = minimumWindowSize;

		final AtomicInteger actualWindowHeight = new AtomicInteger();
		final AtomicInteger actualWindowWidth = new AtomicInteger();
		mInstrumentation.runOnMainSync(() -> {
		mWindowMagnificationController.setWindowSize(expectedWindowWidth, expectedWindowHeight);
		mWindowMagnificationController.enableWindowMagnificationInternal(Float.NaN,
		Float.NaN, Float.NaN);
		actualWindowHeight.set(mWindowManager.getLayoutParamsFromAttachedView().height);
		actualWindowWidth.set(mWindowManager.getLayoutParamsFromAttachedView().width);
		});

		assertEquals(expectedWindowHeight, actualWindowHeight.get());
		assertEquals(expectedWindowWidth, actualWindowWidth.get());
		}

		@Test
		public void setWindowSizeLessThanMin_enabled_minimumWindowSize() {
		final int minimumWindowSize = mResources.getDimensionPixelSize(
		com.android.internal.R.dimen.accessibility_window_magnifier_min_size);
		mInstrumentation.runOnMainSync(
		() -> mWindowMagnificationController.enableWindowMagnificationInternal(Float.NaN,
		Float.NaN, Float.NaN));

		final AtomicInteger actualWindowHeight = new AtomicInteger();
		final AtomicInteger actualWindowWidth = new AtomicInteger();
		mInstrumentation.runOnMainSync(() -> {
		mWindowMagnificationController.setWindowSize(minimumWindowSize - 10,
		minimumWindowSize - 10);
		actualWindowHeight.set(mWindowManager.getLayoutParamsFromAttachedView().height);
		actualWindowWidth.set(mWindowManager.getLayoutParamsFromAttachedView().width);
		});

		assertEquals(minimumWindowSize, actualWindowHeight.get());
		assertEquals(minimumWindowSize, actualWindowWidth.get());
		}

		@Test
		public void setWindowSizeLargerThanScreenSize_enabled_windowSizeIsScreenSize() {
		final Rect bounds = mWindowManager.getCurrentWindowMetrics().getBounds();
		mInstrumentation.runOnMainSync(
		() -> mWindowMagnificationController.enableWindowMagnificationInternal(Float.NaN,
		Float.NaN, Float.NaN));

		final AtomicInteger actualWindowHeight = new AtomicInteger();
		final AtomicInteger actualWindowWidth = new AtomicInteger();
		mInstrumentation.runOnMainSync(() -> {
		mWindowMagnificationController.setWindowSize(bounds.width() + 10, bounds.height() + 10);
		actualWindowHeight.set(mWindowManager.getLayoutParamsFromAttachedView().height);
		actualWindowWidth.set(mWindowManager.getLayoutParamsFromAttachedView().width);
		});

		assertEquals(bounds.height(), actualWindowHeight.get());
		assertEquals(bounds.width(), actualWindowWidth.get());
		}

		@Test
		public void setWindowCenterOutOfScreen_enabled_magnificationCenterIsInsideTheScreen() {

		final int minimumWindowSize = mResources.getDimensionPixelSize(
		com.android.internal.R.dimen.accessibility_window_magnifier_min_size);
		final Rect bounds = mWindowManager.getCurrentWindowMetrics().getBounds();
		mInstrumentation.runOnMainSync(
		() -> mWindowMagnificationController.enableWindowMagnificationInternal(Float.NaN,
		Float.NaN, Float.NaN));

		final AtomicInteger magnificationCenterX = new AtomicInteger();
		final AtomicInteger magnificationCenterY = new AtomicInteger();
		mInstrumentation.runOnMainSync(() -> {
		mWindowMagnificationController.setWindowSizeAndCenter(minimumWindowSize,
		minimumWindowSize, bounds.right, bounds.bottom);
		magnificationCenterX.set((int) mWindowMagnificationController.getCenterX());
		magnificationCenterY.set((int) mWindowMagnificationController.getCenterY());
		});

		assertTrue(magnificationCenterX.get() < bounds.right);
		assertTrue(magnificationCenterY.get() < bounds.bottom);
		}

		private CharSequence getAccessibilityWindowTitle() {
		final View mirrorView = mWindowManager.getAttachedView();
		if (mirrorView == null) {