[Floaty] Remove TopLevel Window (8fefb0f6) · Commits · e / os / android_frameworks_base

libs/WindowManager/Shell/src/com/android/wm/shell/appzoomout/AppZoomOut.java

+9 −10

Original line number	Diff line number	Diff line
		@@ -32,21 +32,20 @@ public interface AppZoomOut {
		void setProgress(float progress);

		/**
		* Sets the top-level scaling factor applied to all content on the screen during a zoom-out.
		* Sets the squeeze effect progress.
		*
		* <p>The {@code scale} parameter determines the current zoom level, ranging from {@code 0f} to
		* {@code 1f}.
		* <p>The {@code progress} parameter determines the current zoom level and surface crop, ranging
		* from {@code 0f} to {@code 1f}.
		* <ul>
		* <li>A value of {@code 1.0f} indicates no scaling (content is displayed at its original
		* size).</li>
		* <li>A value of {@code 0.0f} represents the maximum zoom-out, effectively scaling the
		* content to zero size (though visually it might be constrained).</li>
		* <li>A value of {@code 0f} indicates no scaling and cropping (content is displayed at its
		* original size).</li>
		* <li>A value of {@code 0.0f} represents the maximum zoom-out, effectively scaling and cropping
		* the content to the max pushback level</li>
		* <li>Values between {@code 0.0f} and {@code 1.0f} represent intermediate zoom levels.</li>
		* </ul>
		*
		* @param scale The scaling factor to apply, where {@code 1.0f} is no scale and {@code 0.0f} is
		* maximum zoom-out.
		* @param progress The progress to set the squeeze zoom effect to.
		*/
		void setTopLevelScale(float scale);
		void setTopLevelProgress(float progress);

		}

libs/WindowManager/Shell/src/com/android/wm/shell/appzoomout/AppZoomOutController.java

+7 −7

Original line number	Diff line number	Diff line
		@@ -85,7 +85,7 @@ public class AppZoomOutController implements RemoteCallable<AppZoomOutController
		AppZoomOutDisplayAreaOrganizer appDisplayAreaOrganizer = new AppZoomOutDisplayAreaOrganizer(
		context, displayLayout, mainExecutor);
		TopLevelZoomOutDisplayAreaOrganizer topLevelDisplayAreaOrganizer =
		new TopLevelZoomOutDisplayAreaOrganizer(displayLayout, mainExecutor);
		new TopLevelZoomOutDisplayAreaOrganizer(displayLayout, context, mainExecutor);
		return new AppZoomOutController(context, shellInit, shellTaskOrganizer, displayController,
		appDisplayAreaOrganizer, topLevelDisplayAreaOrganizer, mainExecutor);
		}
		@@ -135,13 +135,13 @@ public class AppZoomOutController implements RemoteCallable<AppZoomOutController

		/**
		* Scales all content on the screen belonging to
		* {@link DisplayAreaOrganizer#FEATURE_WINDOWED_MAGNIFICATION}.
		* {@link DisplayAreaOrganizer#FEATURE_WINDOWED_MAGNIFICATION} and applies a cropping.
		*
		* @param scale scale factor to be applied to the surfaces.
		* @param progress progress to be applied to the top-level zoom effect.
		*/
		private void setTopLevelScale(float scale) {
		private void setTopLevelProgress(float progress) {
		if (enableLppAssistInvocationEffect()) {
		mTopLevelDisplayAreaOrganizer.setScale(scale);
		mTopLevelDisplayAreaOrganizer.setProgress(progress);
		}
		}

		@@ -197,8 +197,8 @@ public class AppZoomOutController implements RemoteCallable<AppZoomOutController
		}

		@Override
		public void setTopLevelScale(float scale) {
		mMainExecutor.execute(() -> AppZoomOutController.this.setTopLevelScale(scale));
		public void setTopLevelProgress(float progress) {
		mMainExecutor.execute(() -> AppZoomOutController.this.setTopLevelProgress(progress));
		}
		}
		}

libs/WindowManager/Shell/src/com/android/wm/shell/appzoomout/TopLevelZoomOutDisplayAreaOrganizer.java

deleted100644 → 0

+0 −120

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2025 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.wm.shell.appzoomout;

		import android.content.Context;
		import android.util.ArrayMap;
		import android.view.Display;
		import android.view.SurfaceControl;
		import android.window.DisplayAreaAppearedInfo;
		import android.window.DisplayAreaInfo;
		import android.window.DisplayAreaOrganizer;
		import android.window.WindowContainerToken;

		import com.android.wm.shell.common.DisplayLayout;

		import java.util.List;
		import java.util.Map;
		import java.util.concurrent.Executor;

		/** Display area organizer that manages the top level zoom out UI and states. */
		public class TopLevelZoomOutDisplayAreaOrganizer extends DisplayAreaOrganizer {
		private final DisplayLayout mDisplayLayout = new DisplayLayout();
		private final Map<WindowContainerToken, SurfaceControl> mDisplayAreaTokenMap =
		new ArrayMap<>();

		private float mScale = 1f;

		public TopLevelZoomOutDisplayAreaOrganizer(DisplayLayout displayLayout, Executor mainExecutor) {
		super(mainExecutor);
		setDisplayLayout(displayLayout);
		}

		@Override
		public void onDisplayAreaAppeared(DisplayAreaInfo displayAreaInfo, SurfaceControl leash) {
		leash.setUnreleasedWarningCallSite(
		"TopLevelZoomDisplayAreaOrganizer.onDisplayAreaAppeared");
		if (displayAreaInfo.displayId == Display.DEFAULT_DISPLAY) {
		mDisplayAreaTokenMap.put(displayAreaInfo.token, leash);
		}
		}

		@Override
		public void onDisplayAreaVanished(DisplayAreaInfo displayAreaInfo) {
		final SurfaceControl leash = mDisplayAreaTokenMap.get(displayAreaInfo.token);
		if (leash != null) {
		leash.release();
		}
		mDisplayAreaTokenMap.remove(displayAreaInfo.token);
		}

		/**
		* Registers the TopLevelZoomOutDisplayAreaOrganizer to manage the display area of
		* {@link DisplayAreaOrganizer#FEATURE_WINDOWED_MAGNIFICATION}.
		*/
		void registerOrganizer() {
		final List<DisplayAreaAppearedInfo> displayAreaInfos = registerOrganizer(
		DisplayAreaOrganizer.FEATURE_WINDOWED_MAGNIFICATION);
		for (int i = 0; i < displayAreaInfos.size(); i++) {
		final DisplayAreaAppearedInfo info = displayAreaInfos.get(i);
		onDisplayAreaAppeared(info.getDisplayAreaInfo(), info.getLeash());
		}
		}

		@Override
		public void unregisterOrganizer() {
		super.unregisterOrganizer();
		reset();
		}

		void setScale(float scale) {
		if (mScale == scale) {
		return;
		}

		mScale = scale;
		apply();
		}

		private void apply() {
		SurfaceControl.Transaction tx = new SurfaceControl.Transaction();
		mDisplayAreaTokenMap.forEach((token, leash) -> updateSurface(tx, leash, mScale));
		tx.apply();
		}

		private void reset() {
		setScale(1f);
		}

		private void updateSurface(SurfaceControl.Transaction tx, SurfaceControl leash, float scale) {
		tx
		.setScale(leash, scale, scale)
		.setPosition(leash, (1f - scale) * mDisplayLayout.width() * 0.5f,
		(1f - scale) * mDisplayLayout.height() * 0.5f);
		}

		void setDisplayLayout(DisplayLayout displayLayout) {
		mDisplayLayout.set(displayLayout);
		}

		void onRotateDisplay(Context context, int toRotation) {
		if (mDisplayLayout.rotation() == toRotation) {
		return;
		}
		mDisplayLayout.rotateTo(context.getResources(), toRotation);
		}
		}

libs/WindowManager/Shell/src/com/android/wm/shell/appzoomout/TopLevelZoomOutDisplayAreaOrganizer.kt

0 → 100644

+178 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2025 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.wm.shell.appzoomout

		import android.content.Context
		import android.util.ArrayMap
		import android.view.Choreographer
		import android.view.Display
		import android.view.SurfaceControl
		import android.window.DisplayAreaInfo
		import android.window.DisplayAreaOrganizer
		import android.window.WindowContainerToken
		import com.android.internal.policy.ScreenDecorationsUtils
		import com.android.wm.shell.common.DisplayLayout
		import java.util.concurrent.Executor
		import kotlin.math.max

		private const val SqueezeEffectMaxThicknessDp = 16
		// Defines the amount the squeeze border overlaps the shrinking content on the shorter display edge.
		// At full progress, the overlap is 4 dp on the shorter display edge. On the longer display edge, it
		// will be more than 4 dp, depending on the display aspect ratio.
		private const val SqueezeEffectOverlapShortEdgeThicknessDp = 4

		/** Display area organizer that manages the top level zoom out UI and states. */
		class TopLevelZoomOutDisplayAreaOrganizer(
		displayLayout: DisplayLayout,
		private val context: Context,
		mainExecutor: Executor
		) : DisplayAreaOrganizer(mainExecutor) {

		private val mDisplayAreaTokenMap: MutableMap<WindowContainerToken, SurfaceControl> = ArrayMap()
		private val mDisplayLayout = DisplayLayout()
		private var cornerRadius = 1f
		private var mProgress = 1f

		init {
		setDisplayLayout(displayLayout)
		}

		override fun onDisplayAreaAppeared(displayAreaInfo: DisplayAreaInfo, leash: SurfaceControl) {
		leash.setUnreleasedWarningCallSite("TopLevelZoomDisplayAreaOrganizer.onDisplayAreaAppeared")
		if (displayAreaInfo.displayId == Display.DEFAULT_DISPLAY) {
		mDisplayAreaTokenMap[displayAreaInfo.token] = leash
		}
		}

		override fun onDisplayAreaVanished(displayAreaInfo: DisplayAreaInfo) {
		val leash = mDisplayAreaTokenMap[displayAreaInfo.token]
		leash?.release()
		mDisplayAreaTokenMap.remove(displayAreaInfo.token)
		}

		/**
		* Registers the TopLevelZoomOutDisplayAreaOrganizer to manage the display area of
		* [DisplayAreaOrganizer.FEATURE_WINDOWED_MAGNIFICATION].
		*/
		fun registerOrganizer() {
		val displayAreaInfos = registerOrganizer(FEATURE_WINDOWED_MAGNIFICATION)
		for (i in displayAreaInfos.indices) {
		val info = displayAreaInfos[i]
		onDisplayAreaAppeared(info.displayAreaInfo, info.leash)
		}
		}

		override fun unregisterOrganizer() {
		super.unregisterOrganizer()
		reset()
		}

		fun setProgress(progress: Float) {
		if (mProgress == progress) {
		return
		}

		mProgress = progress
		apply()
		}

		private fun apply() {
		val tx = SurfaceControl.Transaction()
		mDisplayAreaTokenMap.values.forEach { leash: SurfaceControl ->
		updateSurface(tx, leash, mProgress)
		}
		tx.apply()
		}

		private fun reset() {
		setProgress(1f)
		}

		private fun updateSurface(
		tx: SurfaceControl.Transaction,
		leash: SurfaceControl,
		progress: Float
		) {
		if (progress == 0f) {
		// Reset when scale is set back to 0.
		tx
		.setCrop(leash, null)
		.setScale(leash, 1f, 1f)
		.setPosition(leash, 0f, 0f)
		.setCornerRadius(leash, 0f)
		return
		}
		// Get display dimensions once
		val displayWidth = mDisplayLayout.width()
		val displayHeight = mDisplayLayout.height()
		val displayWidthF = displayWidth.toFloat()
		val displayHeightF = displayHeight.toFloat()

		// Convert DP thickness values to pixels
		val maxThicknessPx = mDisplayLayout.dpToPx(SqueezeEffectMaxThicknessDp)
		val overlapShortEdgeThicknessPx = mDisplayLayout.dpToPx(SqueezeEffectOverlapShortEdgeThicknessDp)

		// Determine the longer edge of the display
		val longEdgePx = max(displayWidth, displayHeight) // Will be Int, but division with Float promotes

		// Calculate the potential for zooming based on thickness parameters
		// This represents how much the content "shrinks" due to the squeeze effect on both sides.
		val zoomPotentialPx = (maxThicknessPx - overlapShortEdgeThicknessPx) * 2f

		val zoomOutScale = 1f - (progress * zoomPotentialPx / longEdgePx)

		// Calculate the current thickness of the squeeze effect based on progress
		val squeezeThickness = maxThicknessPx * progress

		// Calculate the X and Y offsets needed to center the scaled content.
		// These values are also used to adjust the crop region.
		// (1f - zoomOutScale) is the percentage of size reduction.
		// Half of this reduction, applied to the width/height, gives the offset for centering.
		val positionXOffset = (1f - zoomOutScale) * displayWidthF * 0.5f
		val positionYOffset = (1f - zoomOutScale) * displayHeightF * 0.5f

		// Calculate crop values.
		// The squeezeThickness acts as an initial margin/inset.
		// This margin is then reduced by the positionOffset, because as the view scales down
		// and moves towards the center, less cropping is needed to achieve the same visual margin
		// relative to the scaled content.
		val horizontalCrop = squeezeThickness - positionXOffset
		val verticalCrop = squeezeThickness - positionYOffset

		// Calculate the right and bottom crop coordinates
		val cropRight = displayWidthF - horizontalCrop
		val cropBottom = displayHeightF - verticalCrop

		tx
		.setCrop(leash, horizontalCrop, verticalCrop, cropRight, cropBottom)
		.setCornerRadius(leash, cornerRadius * zoomOutScale)
		.setScale(leash, zoomOutScale, zoomOutScale)
		.setPosition(leash, positionXOffset, positionYOffset)
		.setFrameTimelineVsync(Choreographer.getInstance().vsyncId)
		}

		fun setDisplayLayout(displayLayout: DisplayLayout) {
		mDisplayLayout.set(displayLayout)
		cornerRadius = ScreenDecorationsUtils.getWindowCornerRadius(context)
		}

		fun onRotateDisplay(context: Context, toRotation: Int) {
		if (mDisplayLayout.rotation() == toRotation) {
		return
		}
		mDisplayLayout.rotateTo(context.resources, toRotation)
		}
		}

packages/SystemUI/multivalentTests/src/com/android/systemui/topwindoweffects/TopLevelWindowEffectsTest.kt

+234 −61

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