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/*
* Copyright (C) 2022 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.launcher3.taskbar
import android.graphics.Insets
import android.graphics.Region
import android.view.InsetsState.ITYPE_BOTTOM_MANDATORY_GESTURES
import android.view.WindowManager
import com.android.launcher3.AbstractFloatingView
import com.android.launcher3.AbstractFloatingView.TYPE_TASKBAR_ALL_APPS
import com.android.launcher3.DeviceProfile
import com.android.launcher3.anim.AlphaUpdateListener
import com.android.launcher3.taskbar.TaskbarControllers.LoggableTaskbarController
import com.android.quickstep.KtR
import com.android.systemui.shared.system.ViewTreeObserverWrapper.InsetsInfo
import com.android.systemui.shared.system.WindowManagerWrapper
import com.android.systemui.shared.system.WindowManagerWrapper.*
import java.io.PrintWriter
/**
* Handles the insets that Taskbar provides to underlying apps and the IME.
*/
class TaskbarInsetsController(val context: TaskbarActivityContext): LoggableTaskbarController {
/** The bottom insets taskbar provides to the IME when IME is visible. */
val taskbarHeightForIme: Int = context.resources.getDimensionPixelSize(
KtR.dimen.taskbar_ime_size)
private val contentRegion: Region = Region()
private val deviceProfileChangeListener = { _: DeviceProfile ->
onTaskbarWindowHeightOrInsetsChanged()
}
// Initialized in init.
private lateinit var controllers: TaskbarControllers
private lateinit var windowLayoutParams: WindowManager.LayoutParams
fun init(controllers: TaskbarControllers) {
this.controllers = controllers
windowLayoutParams = context.windowLayoutParams
val wmWrapper: WindowManagerWrapper = getInstance()
wmWrapper.setProvidesInsetsTypes(
windowLayoutParams,
intArrayOf(
ITYPE_EXTRA_NAVIGATION_BAR,
ITYPE_BOTTOM_TAPPABLE_ELEMENT,
ITYPE_BOTTOM_MANDATORY_GESTURES
)
)
windowLayoutParams.providedInternalInsets = arrayOfNulls<Insets>(ITYPE_SIZE)
windowLayoutParams.providedInternalImeInsets = arrayOfNulls<Insets>(ITYPE_SIZE)
onTaskbarWindowHeightOrInsetsChanged()
windowLayoutParams.insetsRoundedCornerFrame = true
context.addOnDeviceProfileChangeListener(deviceProfileChangeListener)
}
fun onDestroy() {
context.removeOnDeviceProfileChangeListener(deviceProfileChangeListener)
}
fun onTaskbarWindowHeightOrInsetsChanged() {
var reducingSize = getReducingInsetsForTaskbarInsetsHeight(
controllers.taskbarStashController.contentHeightToReportToApps)
contentRegion.set(0, reducingSize.top,
context.deviceProfile.widthPx, windowLayoutParams.height)
windowLayoutParams.providedInternalInsets[ITYPE_EXTRA_NAVIGATION_BAR] = reducingSize
windowLayoutParams.providedInternalInsets[ITYPE_BOTTOM_MANDATORY_GESTURES] = reducingSize
reducingSize = getReducingInsetsForTaskbarInsetsHeight(
controllers.taskbarStashController.tappableHeightToReportToApps)
windowLayoutParams.providedInternalInsets[ITYPE_BOTTOM_TAPPABLE_ELEMENT] = reducingSize
windowLayoutParams.providedInternalInsets[ITYPE_BOTTOM_MANDATORY_GESTURES] = reducingSize
reducingSize = getReducingInsetsForTaskbarInsetsHeight(taskbarHeightForIme)
windowLayoutParams.providedInternalImeInsets[ITYPE_EXTRA_NAVIGATION_BAR] = reducingSize
windowLayoutParams.providedInternalImeInsets[ITYPE_BOTTOM_TAPPABLE_ELEMENT] = reducingSize
windowLayoutParams.providedInternalImeInsets[ITYPE_BOTTOM_MANDATORY_GESTURES] = reducingSize
}
/**
* WindowLayoutParams.providedInternal*Insets expects Insets that subtract from the window frame
* height (i.e. WindowLayoutParams#height). So for Taskbar to report bottom insets to apps, it
* actually provides insets from the top of its window frame.
* @param height The number of pixels from the bottom of the screen that Taskbar insets.
*/
private fun getReducingInsetsForTaskbarInsetsHeight(height: Int): Insets {
return Insets.of(0, windowLayoutParams.height - height, 0, 0)
}
/**
* Called to update the touchable insets.
* @see InsetsInfo.setTouchableInsets
*/
fun updateInsetsTouchability(insetsInfo: InsetsInfo) {
insetsInfo.touchableRegion.setEmpty()
// Always have nav buttons be touchable
controllers.navbarButtonsViewController.addVisibleButtonsRegion(
context.dragLayer, insetsInfo.touchableRegion
)
var insetsIsTouchableRegion = true
if (context.dragLayer.alpha < AlphaUpdateListener.ALPHA_CUTOFF_THRESHOLD) {
// Let touches pass through us.
insetsInfo.setTouchableInsets(InsetsInfo.TOUCHABLE_INSETS_REGION)
} else if (controllers.navbarButtonsViewController.isImeVisible) {
insetsInfo.setTouchableInsets(InsetsInfo.TOUCHABLE_INSETS_REGION)
} else if (!controllers.uiController.isTaskbarTouchable) {
// Let touches pass through us.
insetsInfo.setTouchableInsets(InsetsInfo.TOUCHABLE_INSETS_REGION)
} else if (controllers.taskbarDragController.isSystemDragInProgress) {
// Let touches pass through us.
insetsInfo.setTouchableInsets(InsetsInfo.TOUCHABLE_INSETS_REGION)
} else if (AbstractFloatingView.hasOpenView(context, TYPE_TASKBAR_ALL_APPS)) {
// Let touches pass through us.
insetsInfo.setTouchableInsets(InsetsInfo.TOUCHABLE_INSETS_REGION)
} else if (controllers.taskbarViewController.areIconsVisible()
|| AbstractFloatingView.hasOpenView(context, AbstractFloatingView.TYPE_ALL)
|| context.isNavBarKidsModeActive
) {
// Taskbar has some touchable elements, take over the full taskbar area
insetsInfo.setTouchableInsets(
if (context.isTaskbarWindowFullscreen) {
InsetsInfo.TOUCHABLE_INSETS_FRAME
} else {
insetsInfo.touchableRegion.set(contentRegion)
InsetsInfo.TOUCHABLE_INSETS_REGION
}
)
insetsIsTouchableRegion = false
} else {
insetsInfo.setTouchableInsets(InsetsInfo.TOUCHABLE_INSETS_REGION)
}
context.excludeFromMagnificationRegion(insetsIsTouchableRegion)
}
override fun dumpLogs(prefix: String, pw: PrintWriter) {
pw.println(prefix + "TaskbarInsetsController:")
pw.println("$prefix\twindowHeight=${windowLayoutParams.height}")
pw.println("$prefix\tprovidedInternalInsets[ITYPE_EXTRA_NAVIGATION_BAR]=" +
"${windowLayoutParams.providedInternalInsets[ITYPE_EXTRA_NAVIGATION_BAR]}")
pw.println("$prefix\tprovidedInternalInsets[ITYPE_BOTTOM_TAPPABLE_ELEMENT]=" +
"${windowLayoutParams.providedInternalInsets[ITYPE_BOTTOM_TAPPABLE_ELEMENT]}")
pw.println("$prefix\tprovidedInternalImeInsets[ITYPE_EXTRA_NAVIGATION_BAR]=" +
"${windowLayoutParams.providedInternalImeInsets[ITYPE_EXTRA_NAVIGATION_BAR]}")
pw.println("$prefix\tprovidedInternalImeInsets[ITYPE_BOTTOM_TAPPABLE_ELEMENT]=" +
"${windowLayoutParams.providedInternalImeInsets[ITYPE_BOTTOM_TAPPABLE_ELEMENT]}")
}
}
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