Vinit Nayak
325 lines
14 KiB
Kotlin
325 lines
14 KiB
Kotlin
/*
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* Copyright (C) 2022 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.launcher3.taskbar
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import android.graphics.Insets
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import android.graphics.Region
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import android.os.Binder
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import android.os.IBinder
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import android.view.Gravity
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import android.view.InsetsFrameProvider
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import android.view.InsetsFrameProvider.SOURCE_DISPLAY
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import android.view.InsetsSource.FLAG_INSETS_ROUNDED_CORNER
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import android.view.InsetsSource.FLAG_SUPPRESS_SCRIM
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import android.view.ViewTreeObserver
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import android.view.ViewTreeObserver.InternalInsetsInfo.TOUCHABLE_INSETS_FRAME
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import android.view.ViewTreeObserver.InternalInsetsInfo.TOUCHABLE_INSETS_REGION
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import android.view.WindowInsets
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import android.view.WindowInsets.Type.mandatorySystemGestures
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import android.view.WindowInsets.Type.navigationBars
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import android.view.WindowInsets.Type.systemGestures
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import android.view.WindowInsets.Type.tappableElement
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import android.view.WindowManager
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import android.view.WindowManager.LayoutParams.TYPE_INPUT_METHOD
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import android.view.WindowManager.LayoutParams.TYPE_VOICE_INTERACTION
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import androidx.core.graphics.toRegion
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import com.android.internal.policy.GestureNavigationSettingsObserver
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import com.android.launcher3.DeviceProfile
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import com.android.launcher3.R
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import com.android.launcher3.anim.AlphaUpdateListener
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import com.android.launcher3.taskbar.TaskbarControllers.LoggableTaskbarController
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import com.android.launcher3.util.DisplayController
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import java.io.PrintWriter
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/** Handles the insets that Taskbar provides to underlying apps and the IME. */
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class TaskbarInsetsController(val context: TaskbarActivityContext) : LoggableTaskbarController {
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companion object {
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private const val INDEX_LEFT = 0
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private const val INDEX_RIGHT = 1
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}
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/** The bottom insets taskbar provides to the IME when IME is visible. */
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val taskbarHeightForIme: Int = context.resources.getDimensionPixelSize(R.dimen.taskbar_ime_size)
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private val touchableRegion: Region = Region()
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private val insetsOwner: IBinder = Binder()
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private val deviceProfileChangeListener = { _: DeviceProfile ->
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onTaskbarOrBubblebarWindowHeightOrInsetsChanged()
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}
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private val gestureNavSettingsObserver =
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GestureNavigationSettingsObserver(
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context.mainThreadHandler,
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context,
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this::onTaskbarOrBubblebarWindowHeightOrInsetsChanged
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)
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// Initialized in init.
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private lateinit var controllers: TaskbarControllers
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private lateinit var windowLayoutParams: WindowManager.LayoutParams
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fun init(controllers: TaskbarControllers) {
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this.controllers = controllers
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windowLayoutParams = context.windowLayoutParams
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onTaskbarOrBubblebarWindowHeightOrInsetsChanged()
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context.addOnDeviceProfileChangeListener(deviceProfileChangeListener)
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gestureNavSettingsObserver.registerForCallingUser()
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}
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fun onDestroy() {
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context.removeOnDeviceProfileChangeListener(deviceProfileChangeListener)
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gestureNavSettingsObserver.unregister()
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}
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fun onTaskbarOrBubblebarWindowHeightOrInsetsChanged() {
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val tappableHeight = controllers.taskbarStashController.tappableHeightToReportToApps
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// We only report tappableElement height for unstashed, persistent taskbar,
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// which is also when we draw the rounded corners above taskbar.
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val insetsRoundedCornerFlag =
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if (tappableHeight > 0) {
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FLAG_INSETS_ROUNDED_CORNER
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} else {
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0
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}
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if (context.isGestureNav) {
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windowLayoutParams.providedInsets =
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arrayOf(
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InsetsFrameProvider(insetsOwner, 0, navigationBars())
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.setFlags(
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FLAG_SUPPRESS_SCRIM or insetsRoundedCornerFlag,
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FLAG_SUPPRESS_SCRIM or FLAG_INSETS_ROUNDED_CORNER
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),
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InsetsFrameProvider(insetsOwner, 0, tappableElement()),
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InsetsFrameProvider(insetsOwner, 0, mandatorySystemGestures()),
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InsetsFrameProvider(insetsOwner, INDEX_LEFT, systemGestures())
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.setSource(SOURCE_DISPLAY),
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InsetsFrameProvider(insetsOwner, INDEX_RIGHT, systemGestures())
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.setSource(SOURCE_DISPLAY)
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)
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} else {
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windowLayoutParams.providedInsets = getButtonNavInsets(insetsRoundedCornerFlag)
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if (windowLayoutParams.paramsForRotation != null) {
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for (layoutParams in windowLayoutParams.paramsForRotation) {
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layoutParams.providedInsets = getButtonNavInsets(insetsRoundedCornerFlag)
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}
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}
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}
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val taskbarTouchableHeight = controllers.taskbarStashController.touchableHeight
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val bubblesTouchableHeight =
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if (controllers.bubbleControllers.isPresent) {
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controllers.bubbleControllers.get().bubbleStashController.touchableHeight
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} else {
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0
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}
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val touchableHeight = Math.max(taskbarTouchableHeight, bubblesTouchableHeight)
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if (
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controllers.bubbleControllers.isPresent &&
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controllers.bubbleControllers.get().bubbleStashController.isBubblesShowingOnHome
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) {
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val iconBounds =
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controllers.bubbleControllers.get().bubbleBarViewController.bubbleBarBounds
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touchableRegion.set(
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iconBounds.left,
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iconBounds.top,
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iconBounds.right,
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iconBounds.bottom
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)
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} else {
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touchableRegion.set(
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0,
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windowLayoutParams.height - touchableHeight,
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context.deviceProfile.widthPx,
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windowLayoutParams.height
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)
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}
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val gravity = windowLayoutParams.gravity
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for (provider in windowLayoutParams.providedInsets) {
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setProviderInsets(provider, gravity)
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}
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if (windowLayoutParams.paramsForRotation != null) {
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// Add insets for navbar rotated params
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for (layoutParams in windowLayoutParams.paramsForRotation) {
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for (provider in layoutParams.providedInsets) {
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setProviderInsets(provider, layoutParams.gravity)
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}
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}
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}
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context.notifyUpdateLayoutParams()
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}
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private fun getButtonNavInsets(insetsRoundedCornerFlag: Int): Array<InsetsFrameProvider> {
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return arrayOf(
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InsetsFrameProvider(insetsOwner, 0, navigationBars())
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.setFlags(
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insetsRoundedCornerFlag,
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(FLAG_SUPPRESS_SCRIM or FLAG_INSETS_ROUNDED_CORNER)
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),
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InsetsFrameProvider(insetsOwner, 0, tappableElement()),
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InsetsFrameProvider(insetsOwner, 0, mandatorySystemGestures()))
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}
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private fun setProviderInsets(provider: InsetsFrameProvider, gravity: Int) {
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val contentHeight = controllers.taskbarStashController.contentHeightToReportToApps
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val tappableHeight = controllers.taskbarStashController.tappableHeightToReportToApps
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val res = context.resources
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if (provider.type == navigationBars() || provider.type == mandatorySystemGestures()) {
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provider.insetsSize = getInsetsByNavMode(contentHeight, gravity)
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} else if (provider.type == tappableElement()) {
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provider.insetsSize = getInsetsByNavMode(tappableHeight, gravity)
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} else if (provider.type == systemGestures() && provider.index == INDEX_LEFT) {
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provider.insetsSize =
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Insets.of(
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gestureNavSettingsObserver.getLeftSensitivityForCallingUser(res),
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0,
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0,
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0
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)
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} else if (provider.type == systemGestures() && provider.index == INDEX_RIGHT) {
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provider.insetsSize =
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Insets.of(
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0,
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0,
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gestureNavSettingsObserver.getRightSensitivityForCallingUser(res),
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0
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)
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}
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val imeInsetsSize = getInsetsByNavMode(taskbarHeightForIme, gravity)
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val insetsSizeOverride =
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arrayOf(
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InsetsFrameProvider.InsetsSizeOverride(TYPE_INPUT_METHOD, imeInsetsSize),
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)
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// Use 0 tappableElement insets for the VoiceInteractionWindow when gesture nav is enabled.
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val visInsetsSizeForGestureNavTappableElement = getInsetsByNavMode(0, gravity)
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val insetsSizeOverrideForGestureNavTappableElement =
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arrayOf(
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InsetsFrameProvider.InsetsSizeOverride(TYPE_INPUT_METHOD, imeInsetsSize),
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InsetsFrameProvider.InsetsSizeOverride(
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TYPE_VOICE_INTERACTION,
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visInsetsSizeForGestureNavTappableElement
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),
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)
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if (context.isGestureNav && provider.type == tappableElement()) {
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provider.insetsSizeOverrides = insetsSizeOverrideForGestureNavTappableElement
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} else if (provider.type != systemGestures()) {
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// We only override insets at the bottom of the screen
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provider.insetsSizeOverrides = insetsSizeOverride
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}
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}
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/**
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* @return [Insets] where the [inset] is either used as a bottom inset or
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* right/left inset if using 3 button nav
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*/
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private fun getInsetsByNavMode(inset: Int, gravity: Int): Insets {
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if ((gravity and Gravity.BOTTOM) != 0) {
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// Taskbar or portrait phone mode
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return Insets.of(0, 0, 0, inset)
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}
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// TODO(b/230394142): seascape
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val isSeascape = (gravity and Gravity.START) != 0
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val leftInset = if (isSeascape) inset else 0
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val rightInset = if (isSeascape) 0 else inset
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return Insets.of(leftInset , 0, rightInset, 0)
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}
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/**
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* Called to update the touchable insets.
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*
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* @see ViewTreeObserver.InternalInsetsInfo.setTouchableInsets
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*/
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fun updateInsetsTouchability(insetsInfo: ViewTreeObserver.InternalInsetsInfo) {
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insetsInfo.touchableRegion.setEmpty()
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// Always have nav buttons be touchable
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controllers.navbarButtonsViewController.addVisibleButtonsRegion(
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context.dragLayer,
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insetsInfo.touchableRegion
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)
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val bubbleBarVisible =
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controllers.bubbleControllers.isPresent &&
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controllers.bubbleControllers.get().bubbleBarViewController.isBubbleBarVisible()
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var insetsIsTouchableRegion = true
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if (context.dragLayer.alpha < AlphaUpdateListener.ALPHA_CUTOFF_THRESHOLD) {
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// Let touches pass through us.
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insetsInfo.setTouchableInsets(TOUCHABLE_INSETS_REGION)
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} else if (
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controllers.navbarButtonsViewController.isImeVisible &&
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controllers.taskbarStashController.isStashed
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) {
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insetsInfo.setTouchableInsets(TOUCHABLE_INSETS_REGION)
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} else if (!controllers.uiController.isTaskbarTouchable) {
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// Let touches pass through us.
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insetsInfo.setTouchableInsets(TOUCHABLE_INSETS_REGION)
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} else if (controllers.taskbarDragController.isSystemDragInProgress) {
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// Let touches pass through us.
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insetsInfo.setTouchableInsets(TOUCHABLE_INSETS_REGION)
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} else if (context.isTaskbarWindowFullscreen) {
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// Intercept entire fullscreen window.
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insetsInfo.setTouchableInsets(TOUCHABLE_INSETS_FRAME)
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insetsIsTouchableRegion = false
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} else if (
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controllers.taskbarViewController.areIconsVisible() ||
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context.isNavBarKidsModeActive ||
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bubbleBarVisible
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) {
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// Taskbar has some touchable elements, take over the full taskbar area
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if (
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controllers.uiController.isInOverview &&
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DisplayController.isTransientTaskbar(context)
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) {
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insetsInfo.touchableRegion.set(
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controllers.taskbarActivityContext.dragLayer.lastDrawnTransientRect.toRegion()
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)
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} else {
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insetsInfo.touchableRegion.set(touchableRegion)
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}
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insetsInfo.setTouchableInsets(TOUCHABLE_INSETS_REGION)
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insetsIsTouchableRegion = false
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} else {
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insetsInfo.setTouchableInsets(TOUCHABLE_INSETS_REGION)
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}
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context.excludeFromMagnificationRegion(insetsIsTouchableRegion)
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}
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override fun dumpLogs(prefix: String, pw: PrintWriter) {
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pw.println(prefix + "TaskbarInsetsController:")
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pw.println("$prefix\twindowHeight=${windowLayoutParams.height}")
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for (provider in windowLayoutParams.providedInsets) {
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pw.print(
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"$prefix\tprovidedInsets: (type=" +
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WindowInsets.Type.toString(provider.type) +
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" insetsSize=" +
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provider.insetsSize
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)
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if (provider.insetsSizeOverrides != null) {
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pw.print(" insetsSizeOverrides={")
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for ((i, overrideSize) in provider.insetsSizeOverrides.withIndex()) {
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if (i > 0) pw.print(", ")
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pw.print(overrideSize)
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}
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pw.print("})")
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}
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pw.println()
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}
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}
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}
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