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Overlay.kt
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Overlay.kt
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/*
* Copyright (c) 2016 Marien Raat <marienraat@riseup.net>
* Copyright (c) 2017 Stephen Michel <s@smichel.me>
* SPDX-License-Identifier: GPL-3.0-or-later
*
* This file incorporates work covered by the following copyright and
* permission notice:
*
* Copyright (c) 2015 Chris Nguyen
*
* Permission to use, copy, modify, and/or distribute this software
* for any purpose with or without fee is hereby granted, provided
* that the above copyright notice and this permission notice appear
* in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package com.jmstudios.redmoon
import android.content.Context
import android.graphics.Canvas
import android.view.View
import android.view.WindowManager
import com.jmstudios.redmoon.helper.Logger
import com.jmstudios.redmoon.manager.BrightnessManager
import com.jmstudios.redmoon.manager.ScreenManager
import com.jmstudios.redmoon.receiver.OrientationChangeReceiver
import kotlin.properties.Delegates
import org.greenrobot.eventbus.Subscribe
class Overlay(context: Context) : View(context), Filter,
OrientationChangeReceiver.OnOrientationChangeListener {
private val mWindowManager = context.getSystemService(Context.WINDOW_SERVICE) as WindowManager
private val mScreenManager = ScreenManager(context, mWindowManager)
private val mOrientationReceiver = OrientationChangeReceiver(context, this)
private val mBrightnessManager = BrightnessManager(context)
override fun onCreate() {
Log.i("onCreate()")
}
override var profile: Profile = activeProfile.off
set(value) {
Log.i("profile set to: $value")
field = value
filtering = !value.isOff
}
override fun onDestroy() {
Log.i("onDestroy()")
filtering = false
}
private var filtering: Boolean by Delegates.observable(false) { _, isOn, turnOn ->
when {
!isOn && turnOn -> show()
isOn && !turnOn -> hide()
isOn && turnOn -> update()
}
}
private fun show() {
updateLayoutParams()
mWindowManager.addView(this, mLayoutParams)
mBrightnessManager.brightnessLowered = profile.lowerBrightness
mOrientationReceiver.register()
EventBus.register(this)
}
private fun hide() {
mBrightnessManager.brightnessLowered = false
mWindowManager.removeView(this)
mOrientationReceiver.unregister()
EventBus.unregister(this)
}
private fun update() {
invalidate() // Forces call to onDraw
if (Config.buttonBacklightFlag == "dim") {
reLayout()
}
mBrightnessManager.brightnessLowered = profile.lowerBrightness
}
private var mLayoutParams = mScreenManager.layoutParams
get() = field.apply {
buttonBrightness = Config.buttonBacklightLevel
type = if (atLeastAPI(26)) {
WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY
} else {
WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY
}
}
private fun updateLayoutParams() {
mLayoutParams = mScreenManager.layoutParams
}
private fun reLayout() = mWindowManager.updateViewLayout(this, mLayoutParams)
override fun onDraw(canvas: Canvas) = canvas.drawColor(profile.filterColor)
override fun onOrientationChanged() {
updateLayoutParams()
reLayout()
}
@Subscribe fun onButtonBacklightChanged(event: buttonBacklightChanged) {
reLayout()
}
companion object : Logger()
}