Add WindowMagnificationBridge for animation (1e14e16a) · Commits · e / os / android_frameworks_base

core/java/android/view/accessibility/IWindowMagnificationConnection.aidl

+4 −4

Original line number	Diff line number	Diff line
		@@ -29,7 +29,7 @@ import android.view.accessibility.IWindowMagnificationConnectionCallback;
		oneway interface IWindowMagnificationConnection {

		/**
		* Enables window magnification on specifed display with specified center and scale.
		* Enables window magnification on specified display with given center and scale and animation.
		*
		* @param displayId The logical display id.
		* @param scale magnification scale.
		@@ -41,7 +41,7 @@ oneway interface IWindowMagnificationConnection {
		void enableWindowMagnification(int displayId, float scale, float centerX, float centerY);

		/**
		* Sets the scale of the window magnifier on specifed display.
		* Sets the scale of the window magnifier on specified display.
		*
		* @param displayId The logical display id.
		* @param scale magnification scale.
		@@ -49,14 +49,14 @@ oneway interface IWindowMagnificationConnection {
		void setScale(int displayId, float scale);

		/**
		* Disables window magnification on specifed display.
		* Disables window magnification on specified display with animation.
		*
		* @param displayId The logical display id.
		*/
		void disableWindowMagnification(int displayId);

		/**
		* Moves the window magnifier on the specifed display.
		* Moves the window magnifier on the specified display. It has no effect while animating.
		*
		* @param offsetX the amount in pixels to offset the window magnifier in the X direction, in
		* current screen pixels.

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

+12 −23

Original line number	Diff line number	Diff line
		@@ -53,8 +53,8 @@ public class WindowMagnification extends SystemUI implements WindowMagnifierCall
		ActivityInfo.CONFIG_DENSITY \| ActivityInfo.CONFIG_ORIENTATION;

		@VisibleForTesting
		protected WindowMagnificationController mWindowMagnificationController;
		protected final ModeSwitchesController mModeSwitchesController;
		protected WindowMagnificationAnimationController mWindowMagnificationAnimationController;
		private final ModeSwitchesController mModeSwitchesController;
		private final Handler mHandler;
		private final AccessibilityManager mAccessibilityManager;
		private final CommandQueue mCommandQueue;
		@@ -72,6 +72,11 @@ public class WindowMagnification extends SystemUI implements WindowMagnifierCall
		Context.ACCESSIBILITY_SERVICE);
		mCommandQueue = commandQueue;
		mModeSwitchesController = modeSwitchesController;
		final WindowMagnificationController controller = new WindowMagnificationController(mContext,
		mHandler, new SfVsyncFrameCallbackProvider(), null,
		new SurfaceControl.Transaction(), this);
		mWindowMagnificationAnimationController = new WindowMagnificationAnimationController(
		mContext, controller);
		}

		@Override
		@@ -81,9 +86,7 @@ public class WindowMagnification extends SystemUI implements WindowMagnifierCall
		return;
		}
		mLastConfiguration.setTo(newConfig);
		if (mWindowMagnificationController != null) {
		mWindowMagnificationController.onConfigurationChanged(configDiff);
		}
		mWindowMagnificationAnimationController.onConfigurationChanged(configDiff);
		if (mModeSwitchesController != null) {
		mModeSwitchesController.onConfigurationChanged(configDiff);
		}
		@@ -97,39 +100,25 @@ public class WindowMagnification extends SystemUI implements WindowMagnifierCall
		@MainThread
		void enableWindowMagnification(int displayId, float scale, float centerX, float centerY) {
		//TODO: b/144080869 support multi-display.
		if (mWindowMagnificationController == null) {
		mWindowMagnificationController = new WindowMagnificationController(mContext,
		mHandler,
		new SfVsyncFrameCallbackProvider(),
		null, new SurfaceControl.Transaction(),
		this);
		}
		mWindowMagnificationController.enableWindowMagnification(scale, centerX, centerY);
		mWindowMagnificationAnimationController.enableWindowMagnification(scale, centerX, centerY);
		}

		@MainThread
		void setScale(int displayId, float scale) {
		//TODO: b/144080869 support multi-display.
		if (mWindowMagnificationController != null) {
		mWindowMagnificationController.setScale(scale);
		}
		mWindowMagnificationAnimationController.setScale(scale);
		}

		@MainThread
		void moveWindowMagnifier(int displayId, float offsetX, float offsetY) {
		//TODO: b/144080869 support multi-display.
		if (mWindowMagnificationController != null) {
		mWindowMagnificationController.moveWindowMagnifier(offsetX, offsetY);
		}
		mWindowMagnificationAnimationController.moveWindowMagnifier(offsetX, offsetY);
		}

		@MainThread
		void disableWindowMagnification(int displayId) {
		//TODO: b/144080869 support multi-display.
		if (mWindowMagnificationController != null) {
		mWindowMagnificationController.deleteWindowMagnification();
		}
		mWindowMagnificationController = null;
		mWindowMagnificationAnimationController.deleteWindowMagnification();
		}

		@Override

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

0 → 100644

+272 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2020 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package com.android.systemui.accessibility;

		import android.animation.Animator;
		import android.animation.ValueAnimator;
		import android.annotation.IntDef;
		import android.content.Context;
		import android.content.res.Resources;
		import android.util.Log;
		import android.view.animation.AccelerateInterpolator;

		import com.android.internal.annotations.VisibleForTesting;
		import com.android.systemui.R;

		import java.lang.annotation.Retention;
		import java.lang.annotation.RetentionPolicy;

		/**
		* Provides same functionality of {@link WindowMagnificationController}. Some methods run with
		* the animation.
		*/
		class WindowMagnificationAnimationController implements ValueAnimator.AnimatorUpdateListener,
		Animator.AnimatorListener {

		private static final String TAG = "WindowMagnificationBridge";
		private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);

		@Retention(RetentionPolicy.SOURCE)
		@IntDef({STATE_DISABLED, STATE_ENABLED, STATE_DISABLING, STATE_ENABLING})
		@interface MagnificationState {}

		//The window magnification is disabled.
		private static final int STATE_DISABLED = 0;
		//The window magnification is enabled.
		private static final int STATE_ENABLED = 1;
		//The window magnification is going to be disabled when the animation is end.
		private static final int STATE_DISABLING = 2;
		//The animation is running for enabling the window magnification.
		private static final int STATE_ENABLING = 3;

		private final WindowMagnificationController mController;
		private final ValueAnimator mValueAnimator;
		private final AnimationSpec mStartSpec = new AnimationSpec();
		private final AnimationSpec mEndSpec = new AnimationSpec();
		private final Context mContext;

		@MagnificationState
		private int mState = STATE_DISABLED;

		WindowMagnificationAnimationController(
		Context context, WindowMagnificationController controller) {
		this(context, controller, newValueAnimator(context.getResources()));
		}

		@VisibleForTesting
		WindowMagnificationAnimationController(Context context,
		WindowMagnificationController controller, ValueAnimator valueAnimator) {
		mContext = context;
		mController = controller;
		mValueAnimator = valueAnimator;
		mValueAnimator.addUpdateListener(this);
		mValueAnimator.addListener(this);
		}

		/**
		* Wraps {@link WindowMagnificationController#enableWindowMagnification(float, float, float)}
		* with transition animation. If the window magnification is not enabled, the scale will start
		* from 1.0 and the center won't be changed during the animation. If {@link #mState} is
		* {@code STATE_DISABLING}, the animation runs in reverse.
		*
		* @param scale the target scale, or {@link Float#NaN} to leave unchanged.
		* @param centerX the screen-relative X coordinate around which to center,
		* or {@link Float#NaN} to leave unchanged.
		* @param centerY the screen-relative Y coordinate around which to center,
		* or {@link Float#NaN} to leave unchanged.
		*
		* @see #onAnimationUpdate(ValueAnimator)
		*/
		void enableWindowMagnification(float scale, float centerX, float centerY) {
		if (mState == STATE_ENABLING) {
		mValueAnimator.cancel();
		}
		setupEnableAnimationSpecs(scale, centerX, centerY);

		if (mEndSpec.equals(mStartSpec)) {
		setState(STATE_ENABLED);
		} else {
		if (mState == STATE_DISABLING) {
		mValueAnimator.reverse();
		} else {
		mValueAnimator.start();
		}
		setState(STATE_ENABLING);
		}
		}

		private void setupEnableAnimationSpecs(float scale, float centerX, float centerY) {
		final float currentScale = mController.getScale();
		final float currentCenterX = mController.getCenterX();
		final float currentCenterY = mController.getCenterY();

		if (mState == STATE_DISABLED) {
		//We don't need to offset the center during the animation.
		mStartSpec.set(/* scale*/ 1.0f, centerX, centerY);
		mEndSpec.set(Float.isNaN(scale) ? mContext.getResources().getInteger(
		R.integer.magnification_default_scale) : scale, centerX, centerY);
		} else {
		mStartSpec.set(currentScale, currentCenterX, currentCenterY);
		mEndSpec.set(Float.isNaN(scale) ? currentScale : scale,
		Float.isNaN(centerX) ? currentCenterX : centerX,
		Float.isNaN(centerY) ? currentCenterY : centerY);
		}
		if (DEBUG) {
		Log.d(TAG, "SetupEnableAnimationSpecs : mStartSpec = " + mStartSpec + ", endSpec = "
		+ mEndSpec);
		}
		}

		/**
		* Wraps {@link WindowMagnificationController#setScale(float)}. If the animation is
		* running, it has no effect.
		*/
		void setScale(float scale) {
		if (mValueAnimator.isRunning()) {
		return;
		}
		mController.setScale(scale);
		}

		/**
		* Wraps {@link WindowMagnificationController#deleteWindowMagnification()}} with transition
		* animation. If the window magnification is enabling, it runs the animation in reverse.
		*/
		void deleteWindowMagnification() {
		if (mState == STATE_DISABLED \|\| mState == STATE_DISABLING) {
		return;
		}
		mStartSpec.set(/* scale*/ 1.0f, Float.NaN, Float.NaN);
		mEndSpec.set(/* scale*/ mController.getScale(), Float.NaN, Float.NaN);

		mValueAnimator.reverse();
		setState(STATE_DISABLING);
		}

		/**
		* Wraps {@link WindowMagnificationController#moveWindowMagnifier(float, float)}. If the
		* animation is running, it has no effect.
		* @param offsetX the amount in pixels to offset the window magnifier in the X direction, in
		* current screen pixels.
		* @param offsetY the amount in pixels to offset the window magnifier in the Y direction, in
		* current screen pixels.
		*/
		void moveWindowMagnifier(float offsetX, float offsetY) {
		if (mValueAnimator.isRunning()) {
		return;
		}
		mController.moveWindowMagnifier(offsetX, offsetY);
		}

		void onConfigurationChanged(int configDiff) {
		mController.onConfigurationChanged(configDiff);
		}

		private void setState(@MagnificationState int state) {
		if (DEBUG) {
		Log.d(TAG, "setState from " + mState + " to " + state);
		}
		mState = state;
		}

		@Override
		public void onAnimationStart(Animator animation) {
		}

		@Override
		public void onAnimationEnd(Animator animation) {
		if (mState == STATE_DISABLING) {
		mController.deleteWindowMagnification();
		setState(STATE_DISABLED);
		} else if (mState == STATE_ENABLING) {
		setState(STATE_ENABLED);
		} else {
		Log.w(TAG, "onAnimationEnd unexpected state:" + mState);
		}
		}

		@Override
		public void onAnimationCancel(Animator animation) {
		}

		@Override
		public void onAnimationRepeat(Animator animation) {
		}

		@Override
		public void onAnimationUpdate(ValueAnimator animation) {
		final float fract = animation.getAnimatedFraction();
		final float sentScale = mStartSpec.mScale + (mEndSpec.mScale - mStartSpec.mScale) * fract;
		final float centerX =
		mStartSpec.mCenterX + (mEndSpec.mCenterX - mStartSpec.mCenterX) * fract;
		final float centerY =
		mStartSpec.mCenterY + (mEndSpec.mCenterY - mStartSpec.mCenterY) * fract;
		mController.enableWindowMagnification(sentScale, centerX, centerY);
		}

		private static ValueAnimator newValueAnimator(Resources resources) {
		final ValueAnimator valueAnimator = new ValueAnimator();
		valueAnimator.setDuration(
		resources.getInteger(com.android.internal.R.integer.config_longAnimTime));
		valueAnimator.setInterpolator(new AccelerateInterpolator(2.5f));
		valueAnimator.setFloatValues(0.0f, 1.0f);
		return valueAnimator;
		}

		private static class AnimationSpec {
		private float mScale = Float.NaN;
		private float mCenterX = Float.NaN;
		private float mCenterY = Float.NaN;

		@Override
		public boolean equals(Object other) {
		if (this == other) {
		return true;
		}

		if (other == null \|\| getClass() != other.getClass()) {
		return false;
		}

		final AnimationSpec s = (AnimationSpec) other;
		return mScale == s.mScale && mCenterX == s.mCenterX && mCenterY == s.mCenterY;
		}

		@Override
		public int hashCode() {
		int result = (mScale != +0.0f ? Float.floatToIntBits(mScale) : 0);
		result = 31 * result + (mCenterX != +0.0f ? Float.floatToIntBits(mCenterX) : 0);
		result = 31 * result + (mCenterY != +0.0f ? Float.floatToIntBits(mCenterY) : 0);
		return result;
		}

		void set(float scale, float centerX, float centerY) {
		mScale = scale;
		mCenterX = centerX;
		mCenterY = centerY;
		}

		@Override
		public String toString() {
		return "AnimationSpec{"
		+ "mScale=" + mScale
		+ ", mCenterX=" + mCenterX
		+ ", mCenterY=" + mCenterY
		+ '}';
		}
		}
		}

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

+37 −6

Original line number	Diff line number	Diff line
		@@ -150,7 +150,7 @@ class WindowMagnificationController implements View.OnTouchListener, SurfaceHold

		mMirrorViewGeometryVsyncCallback =
		l -> {
		if (mMirrorView != null && mMirrorSurface != null) {
		if (isWindowVisible() && mMirrorSurface != null) {
		calculateSourceBounds(mMagnificationFrame, mScale);
		// The final destination for the magnification surface should be at 0,0
		// since the ViewRootImpl's position will change
		@@ -502,7 +502,7 @@ class WindowMagnificationController implements View.OnTouchListener, SurfaceHold
		/**
		* Enables window magnification with specified parameters.
		*
		* @param scale the target scale
		* @param scale the target scale, or {@link Float#NaN} to leave unchanged
		* @param centerX the screen-relative X coordinate around which to center,
		* or {@link Float#NaN} to leave unchanged.
		* @param centerY the screen-relative Y coordinate around which to center,
		@@ -513,10 +513,10 @@ class WindowMagnificationController implements View.OnTouchListener, SurfaceHold
		: centerX - mMagnificationFrame.exactCenterX();
		final float offsetY = Float.isNaN(centerY) ? 0
		: centerY - mMagnificationFrame.exactCenterY();
		mScale = scale;
		mScale = Float.isNaN(scale) ? mScale : scale;
		setMagnificationFrameBoundary();
		updateMagnificationFramePosition((int) offsetX, (int) offsetY);
		if (mMirrorView == null) {
		if (!isWindowVisible()) {
		createMirrorWindow();
		showControls();
		} else {
		@@ -527,10 +527,10 @@ class WindowMagnificationController implements View.OnTouchListener, SurfaceHold
		/**
		* Sets the scale of the magnified region if it's visible.
		*
		* @param scale the target scale
		* @param scale the target scale, or {@link Float#NaN} to leave unchanged
		*/
		void setScale(float scale) {
		if (mMirrorView == null \|\| mScale == scale) {
		if (!isWindowVisible() \|\| mScale == scale) {
		return;
		}
		enableWindowMagnification(scale, Float.NaN, Float.NaN);
		@@ -552,4 +552,35 @@ class WindowMagnificationController implements View.OnTouchListener, SurfaceHold
		modifyWindowMagnification(mTransaction);
		}
		}

		/**
		* Gets the scale.
		* @return {@link Float#NaN} if the window is invisible.
		*/
		float getScale() {
		return isWindowVisible() ? mScale : Float.NaN;
		}

		/**
		* Returns the screen-relative X coordinate of the center of the magnified bounds.
		*
		* @return the X coordinate. {@link Float#NaN} if the window is invisible.
		*/
		float getCenterX() {
		return isWindowVisible() ? mMagnificationFrame.exactCenterX() : Float.NaN;
		}

		/**
		* Returns the screen-relative Y coordinate of the center of the magnified bounds.
		*
		* @return the Y coordinate. {@link Float#NaN} if the window is invisible.
		*/
		float getCenterY() {
		return isWindowVisible() ? mMagnificationFrame.exactCenterY() : Float.NaN;
		}

		//The window is visible when it is existed.
		private boolean isWindowVisible() {
		return mMirrorView != null;
		}
		}

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

+9 −6

Original line number	Diff line number	Diff line
		@@ -25,6 +25,7 @@ import android.content.Context;
		import android.os.RemoteException;
		import android.provider.Settings;
		import android.testing.AndroidTestingRunner;
		import android.testing.TestableLooper;
		import android.view.Display;
		import android.view.accessibility.AccessibilityManager;
		import android.view.accessibility.IWindowMagnificationConnection;
		@@ -47,6 +48,7 @@ import org.mockito.MockitoAnnotations;
		*/
		@SmallTest
		@RunWith(AndroidTestingRunner.class)
		@TestableLooper.RunWithLooper
		public class IWindowMagnificationConnectionTest extends SysuiTestCase {

		private static final int TEST_DISPLAY = Display.DEFAULT_DISPLAY;
		@@ -57,7 +59,7 @@ public class IWindowMagnificationConnectionTest extends SysuiTestCase {
		@Mock
		private IWindowMagnificationConnectionCallback mConnectionCallback;
		@Mock
		private WindowMagnificationController mWindowMagnificationController;
		private WindowMagnificationAnimationController mWindowMagnificationAnimationController;
		@Mock
		private ModeSwitchesController mModeSwitchesController;
		private IWindowMagnificationConnection mIWindowMagnificationConnection;
		@@ -74,7 +76,8 @@ public class IWindowMagnificationConnectionTest extends SysuiTestCase {
		any(IWindowMagnificationConnection.class));
		mWindowMagnification = new WindowMagnification(getContext(),
		getContext().getMainThreadHandler(), mCommandQueue, mModeSwitchesController);
		mWindowMagnification.mWindowMagnificationController = mWindowMagnificationController;
		mWindowMagnification.mWindowMagnificationAnimationController =
		mWindowMagnificationAnimationController;
		mWindowMagnification.requestWindowMagnificationConnection(true);
		assertNotNull(mIWindowMagnificationConnection);
		mIWindowMagnificationConnection.setConnectionCallback(mConnectionCallback);
		@@ -86,7 +89,7 @@ public class IWindowMagnificationConnectionTest extends SysuiTestCase {
		Float.NaN);
		waitForIdleSync();

		verify(mWindowMagnificationController).enableWindowMagnification(3.0f, Float.NaN,
		verify(mWindowMagnificationAnimationController).enableWindowMagnification(3.0f, Float.NaN,
		Float.NaN);
		}

		@@ -99,7 +102,7 @@ public class IWindowMagnificationConnectionTest extends SysuiTestCase {
		mIWindowMagnificationConnection.disableWindowMagnification(TEST_DISPLAY);
		waitForIdleSync();

		verify(mWindowMagnificationController).deleteWindowMagnification();
		verify(mWindowMagnificationAnimationController).deleteWindowMagnification();
		}

		@Test
		@@ -107,7 +110,7 @@ public class IWindowMagnificationConnectionTest extends SysuiTestCase {
		mIWindowMagnificationConnection.setScale(TEST_DISPLAY, 3.0f);
		waitForIdleSync();

		verify(mWindowMagnificationController).setScale(3.0f);
		verify(mWindowMagnificationAnimationController).setScale(3.0f);
		}

		@Test
		@@ -115,7 +118,7 @@ public class IWindowMagnificationConnectionTest extends SysuiTestCase {
		mIWindowMagnificationConnection.moveWindowMagnifier(TEST_DISPLAY, 100f, 200f);
		waitForIdleSync();

		verify(mWindowMagnificationController).moveWindowMagnifier(100f, 200f);
		verify(mWindowMagnificationAnimationController).moveWindowMagnifier(100f, 200f);
		}

		@Test