Create DragZoneFactory for bubble drag zones (5a420f3d) · Commits · e / os / android_frameworks_base

libs/WindowManager/Shell/shared/src/com/android/wm/shell/shared/bubbles/DragZoneFactory.kt

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		/*
		* 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.shared.bubbles

		import android.graphics.Rect
		import com.android.wm.shell.shared.bubbles.DragZoneFactory.SplitScreenModeChecker.SplitScreenMode

		/** A class for creating drag zones for dragging bubble objects or dragging into bubbles. */
		class DragZoneFactory(
		private val deviceConfig: DeviceConfig,
		private val splitScreenModeChecker: SplitScreenModeChecker,
		private val desktopWindowModeChecker: DesktopWindowModeChecker,
		) {

		private val windowBounds: Rect
		get() = deviceConfig.windowBounds

		// TODO b/393172431: move these to xml
		private val dismissDragZoneSize = if (deviceConfig.isSmallTablet) 140 else 200
		private val bubbleDragZoneTabletSize = 200
		private val bubbleDragZoneFoldableSize = 140
		private val fullScreenDragZoneWidth = 512
		private val fullScreenDragZoneHeight = 44
		private val desktopWindowDragZoneWidth = 880
		private val desktopWindowDragZoneHeight = 300
		private val desktopWindowFromExpandedViewDragZoneWidth = 200
		private val desktopWindowFromExpandedViewDragZoneHeight = 350
		private val splitFromBubbleDragZoneHeight = 100
		private val splitFromBubbleDragZoneWidth = 60
		private val hSplitFromExpandedViewDragZoneWidth = 60
		private val vSplitFromExpandedViewDragZoneWidth = 200
		private val vSplitFromExpandedViewDragZoneHeightTablet = 285
		private val vSplitFromExpandedViewDragZoneHeightFold = 150
		private val vUnevenSplitFromExpandedViewDragZoneHeight = 96

		/**
		* Creates the list of drag zones for the dragged object.
		*
		* Drag zones may have overlap, but the list is sorted by priority where the first drag zone has
		* the highest priority so it should be checked first.
		*/
		fun createSortedDragZones(draggedObject: DraggedObject): List<DragZone> {
		val dragZones = mutableListOf<DragZone>()
		when (draggedObject) {
		is DraggedObject.BubbleBar -> {
		dragZones.add(createDismissDragZone())
		dragZones.addAll(createBubbleDragZones())
		}
		is DraggedObject.Bubble -> {
		dragZones.add(createDismissDragZone())
		dragZones.addAll(createBubbleDragZones())
		dragZones.add(createFullScreenDragZone())
		if (shouldShowDesktopWindowDragZones()) {
		dragZones.add(createDesktopWindowDragZoneForBubble())
		}
		dragZones.addAll(createSplitScreenDragZonesForBubble())
		}
		is DraggedObject.ExpandedView -> {
		dragZones.add(createDismissDragZone())
		dragZones.add(createFullScreenDragZone())
		if (shouldShowDesktopWindowDragZones()) {
		dragZones.add(createDesktopWindowDragZoneForExpandedView())
		}
		if (deviceConfig.isSmallTablet) {
		dragZones.addAll(createSplitScreenDragZonesForExpandedViewOnFoldable())
		} else {
		dragZones.addAll(createSplitScreenDragZonesForExpandedViewOnTablet())
		}
		createBubbleDragZonesForExpandedView()
		}
		}
		return dragZones
		}

		private fun createDismissDragZone(): DragZone {
		return DragZone.Dismiss(
		bounds =
		Rect(
		windowBounds.right / 2 - dismissDragZoneSize / 2,
		windowBounds.bottom - dismissDragZoneSize,
		windowBounds.right / 2 + dismissDragZoneSize / 2,
		windowBounds.bottom
		)
		)
		}

		private fun createBubbleDragZones(): List<DragZone> {
		val dragZoneSize =
		if (deviceConfig.isSmallTablet) {
		bubbleDragZoneFoldableSize
		} else {
		bubbleDragZoneTabletSize
		}
		return listOf(
		DragZone.Bubble.Left(
		bounds =
		Rect(0, windowBounds.bottom - dragZoneSize, dragZoneSize, windowBounds.bottom),
		dropTarget = Rect(0, 0, 0, 0),
		),
		DragZone.Bubble.Right(
		bounds =
		Rect(
		windowBounds.right - dragZoneSize,
		windowBounds.bottom - dragZoneSize,
		windowBounds.right,
		windowBounds.bottom,
		),
		dropTarget = Rect(0, 0, 0, 0),
		)
		)
		}

		private fun createBubbleDragZonesForExpandedView(): List<DragZone> {
		return listOf(
		DragZone.Bubble.Left(
		bounds = Rect(0, 0, windowBounds.right / 2, windowBounds.bottom),
		dropTarget = Rect(0, 0, 0, 0),
		),
		DragZone.Bubble.Right(
		bounds =
		Rect(
		windowBounds.right / 2,
		0,
		windowBounds.right,
		windowBounds.bottom,
		),
		dropTarget = Rect(0, 0, 0, 0),
		)
		)
		}

		private fun createFullScreenDragZone(): DragZone {
		return DragZone.FullScreen(
		bounds =
		Rect(
		windowBounds.right / 2 - fullScreenDragZoneWidth / 2,
		0,
		windowBounds.right / 2 + fullScreenDragZoneWidth / 2,
		fullScreenDragZoneHeight
		),
		dropTarget = Rect(0, 0, 0, 0)
		)
		}

		private fun shouldShowDesktopWindowDragZones() =
		!deviceConfig.isSmallTablet && desktopWindowModeChecker.isSupported()

		private fun createDesktopWindowDragZoneForBubble(): DragZone {
		return DragZone.DesktopWindow(
		bounds =
		if (deviceConfig.isLandscape) {
		Rect(
		windowBounds.right / 2 - desktopWindowDragZoneWidth / 2,
		windowBounds.bottom / 2 - desktopWindowDragZoneHeight / 2,
		windowBounds.right / 2 + desktopWindowDragZoneWidth / 2,
		windowBounds.bottom / 2 + desktopWindowDragZoneHeight / 2
		)
		} else {
		Rect(
		0,
		windowBounds.bottom / 2 - desktopWindowDragZoneHeight / 2,
		windowBounds.right,
		windowBounds.bottom / 2 + desktopWindowDragZoneHeight / 2
		)
		},
		dropTarget = Rect(0, 0, 0, 0)
		)
		}

		private fun createDesktopWindowDragZoneForExpandedView(): DragZone {
		return DragZone.DesktopWindow(
		bounds =
		Rect(
		windowBounds.right / 2 - desktopWindowFromExpandedViewDragZoneWidth / 2,
		windowBounds.bottom / 2 - desktopWindowFromExpandedViewDragZoneHeight / 2,
		windowBounds.right / 2 + desktopWindowFromExpandedViewDragZoneWidth / 2,
		windowBounds.bottom / 2 + desktopWindowFromExpandedViewDragZoneHeight / 2
		),
		dropTarget = Rect(0, 0, 0, 0)
		)
		}

		private fun createSplitScreenDragZonesForBubble(): List<DragZone> {
		// for foldables in landscape mode or tables in portrait modes we have vertical split drag
		// zones. otherwise we have horizontal split drag zones.
		val isVerticalSplit = deviceConfig.isSmallTablet == deviceConfig.isLandscape
		return if (isVerticalSplit) {
		when (splitScreenModeChecker.getSplitScreenMode()) {
		SplitScreenMode.SPLIT_50_50,
		SplitScreenMode.NONE ->
		listOf(
		DragZone.Split.Top(
		bounds = Rect(0, 0, windowBounds.right, windowBounds.bottom / 2),
		),
		DragZone.Split.Bottom(
		bounds =
		Rect(
		0,
		windowBounds.bottom / 2,
		windowBounds.right,
		windowBounds.bottom
		),
		)
		)
		SplitScreenMode.SPLIT_90_10 -> {
		listOf(
		DragZone.Split.Top(
		bounds =
		Rect(
		0,
		0,
		windowBounds.right,
		windowBounds.bottom - splitFromBubbleDragZoneHeight
		),
		),
		DragZone.Split.Bottom(
		bounds =
		Rect(
		0,
		windowBounds.bottom - splitFromBubbleDragZoneHeight,
		windowBounds.right,
		windowBounds.bottom
		),
		)
		)
		}
		SplitScreenMode.SPLIT_10_90 -> {
		listOf(
		DragZone.Split.Top(
		bounds = Rect(0, 0, windowBounds.right, splitFromBubbleDragZoneHeight),
		),
		DragZone.Split.Bottom(
		bounds =
		Rect(
		0,
		splitFromBubbleDragZoneHeight,
		windowBounds.right,
		windowBounds.bottom
		),
		)
		)
		}
		}
		} else {
		when (splitScreenModeChecker.getSplitScreenMode()) {
		SplitScreenMode.SPLIT_50_50,
		SplitScreenMode.NONE ->
		listOf(
		DragZone.Split.Left(
		bounds = Rect(0, 0, windowBounds.right / 2, windowBounds.bottom),
		),
		DragZone.Split.Right(
		bounds =
		Rect(
		windowBounds.right / 2,
		0,
		windowBounds.right,
		windowBounds.bottom
		),
		)
		)
		SplitScreenMode.SPLIT_90_10 ->
		listOf(
		DragZone.Split.Left(
		bounds =
		Rect(
		0,
		0,
		windowBounds.right - splitFromBubbleDragZoneWidth,
		windowBounds.bottom
		),
		),
		DragZone.Split.Right(
		bounds =
		Rect(
		windowBounds.right - splitFromBubbleDragZoneWidth,
		0,
		windowBounds.right,
		windowBounds.bottom
		),
		)
		)
		SplitScreenMode.SPLIT_10_90 ->
		listOf(
		DragZone.Split.Left(
		bounds = Rect(0, 0, splitFromBubbleDragZoneWidth, windowBounds.bottom),
		),
		DragZone.Split.Right(
		bounds =
		Rect(
		splitFromBubbleDragZoneWidth,
		0,
		windowBounds.right,
		windowBounds.bottom
		),
		)
		)
		}
		}
		}

		private fun createSplitScreenDragZonesForExpandedViewOnTablet(): List<DragZone> {
		return if (deviceConfig.isLandscape) {
		createHorizontalSplitDragZonesForExpandedView()
		} else {
		// for tablets in portrait mode, split drag zones appear below the full screen drag zone
		// for the top split zone, and above the dismiss zone. Both are horizontally centered.
		val splitZoneLeft = windowBounds.right / 2 - vSplitFromExpandedViewDragZoneWidth / 2
		val splitZoneRight = splitZoneLeft + vSplitFromExpandedViewDragZoneWidth
		val bottomSplitZoneBottom = windowBounds.bottom - dismissDragZoneSize
		listOf(
		DragZone.Split.Top(
		bounds =
		Rect(
		splitZoneLeft,
		fullScreenDragZoneHeight,
		splitZoneRight,
		fullScreenDragZoneHeight + vSplitFromExpandedViewDragZoneHeightTablet
		),
		),
		DragZone.Split.Bottom(
		bounds =
		Rect(
		splitZoneLeft,
		bottomSplitZoneBottom - vSplitFromExpandedViewDragZoneHeightTablet,
		splitZoneRight,
		bottomSplitZoneBottom
		),
		)
		)
		}
		}

		private fun createSplitScreenDragZonesForExpandedViewOnFoldable(): List<DragZone> {
		return if (deviceConfig.isLandscape) {
		// vertical split drag zones are aligned with the full screen drag zone width
		val splitZoneLeft = windowBounds.right / 2 - fullScreenDragZoneWidth / 2
		when (splitScreenModeChecker.getSplitScreenMode()) {
		SplitScreenMode.SPLIT_50_50,
		SplitScreenMode.NONE ->
		listOf(
		DragZone.Split.Top(
		bounds =
		Rect(
		splitZoneLeft,
		fullScreenDragZoneHeight,
		splitZoneLeft + fullScreenDragZoneWidth,
		fullScreenDragZoneHeight +
		vSplitFromExpandedViewDragZoneHeightFold
		),
		),
		DragZone.Split.Bottom(
		bounds =
		Rect(
		splitZoneLeft,
		windowBounds.bottom / 2,
		splitZoneLeft + fullScreenDragZoneWidth,
		windowBounds.bottom / 2 +
		vSplitFromExpandedViewDragZoneHeightFold
		),
		)
		)
		// TODO b/393172431: add this zone when it's defined
		SplitScreenMode.SPLIT_10_90 -> listOf()
		SplitScreenMode.SPLIT_90_10 ->
		listOf(
		DragZone.Split.Top(
		bounds =
		Rect(
		splitZoneLeft,
		fullScreenDragZoneHeight,
		splitZoneLeft + fullScreenDragZoneWidth,
		fullScreenDragZoneHeight +
		vUnevenSplitFromExpandedViewDragZoneHeight
		),
		),
		DragZone.Split.Bottom(
		bounds =
		Rect(
		0,
		windowBounds.bottom -
		vUnevenSplitFromExpandedViewDragZoneHeight,
		windowBounds.right,
		windowBounds.bottom
		),
		)
		)
		}
		} else {
		// horizontal split drag zones
		createHorizontalSplitDragZonesForExpandedView()
		}
		}

		private fun createHorizontalSplitDragZonesForExpandedView(): List<DragZone> {
		// horizontal split drag zones for expanded view appear on the edges of the screen from the
		// top down until the dismiss drag zone height
		return listOf(
		DragZone.Split.Left(
		bounds =
		Rect(
		0,
		0,
		hSplitFromExpandedViewDragZoneWidth,
		windowBounds.bottom - dismissDragZoneSize
		),
		),
		DragZone.Split.Right(
		bounds =
		Rect(
		windowBounds.right - hSplitFromExpandedViewDragZoneWidth,
		0,
		windowBounds.right,
		windowBounds.bottom - dismissDragZoneSize
		),
		)
		)
		}

		/** Checks the current split screen mode. */
		fun interface SplitScreenModeChecker {
		enum class SplitScreenMode {
		NONE,
		SPLIT_50_50,
		SPLIT_10_90,
		SPLIT_90_10
		}

		fun getSplitScreenMode(): SplitScreenMode
		}

		/** Checks if desktop window mode is supported. */
		fun interface DesktopWindowModeChecker {
		fun isSupported(): Boolean
		}
		}

libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/shared/bubbles/DragZoneFactoryTest.kt

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