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/*
* Copyright (C) 2023 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.wallpaper.picker.preview.ui.binder
import android.content.Context
import android.view.LayoutInflater
import android.view.SurfaceHolder
import android.view.SurfaceView
import androidx.lifecycle.LifecycleOwner
import androidx.lifecycle.lifecycleScope
import com.android.wallpaper.R
import com.android.wallpaper.dispatchers.MainDispatcher
import com.android.wallpaper.model.wallpaper.ScreenOrientation
import com.android.wallpaper.model.wallpaper.WallpaperModel
import com.android.wallpaper.module.CustomizationSections.Screen
import com.android.wallpaper.picker.preview.ui.util.SurfaceViewUtil
import com.android.wallpaper.picker.preview.ui.util.SurfaceViewUtil.attachView
import com.android.wallpaper.picker.preview.ui.viewmodel.WallpaperPreviewViewModel
import com.android.wallpaper.util.wallpaperconnection.WallpaperConnectionUtils
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.Job
import kotlinx.coroutines.launch
/**
* Bind the [SurfaceView] with [WallpaperPreviewViewModel] for rendering static or live wallpaper
* preview, with regard to its underlying [WallpaperModel].
*/
object SmallWallpaperPreviewBinder {
/**
* @param onFullResImageViewCreated This callback is only used when the wallpaperModel is a
* [WallpaperModel.StaticWallpaperModel]. [FullWallpaperPreviewBinder] needs the callback to
* further delegate the touch events and set the state change listener.
*/
fun bind(
surface: SurfaceView,
viewModel: WallpaperPreviewViewModel,
screen: Screen,
screenOrientation: ScreenOrientation,
applicationContext: Context,
@MainDispatcher mainScope: CoroutineScope,
viewLifecycleOwner: LifecycleOwner,
) {
var job: Job? = null
surface.setZOrderMediaOverlay(true)
surface.holder.addCallback(
object : SurfaceViewUtil.SurfaceCallback {
override fun surfaceCreated(holder: SurfaceHolder) {
job =
viewLifecycleOwner.lifecycleScope.launch {
viewModel.wallpaper.collect { wallpaper ->
if (wallpaper is WallpaperModel.LiveWallpaperModel) {
WallpaperConnectionUtils.connect(
applicationContext,
mainScope,
wallpaper.liveWallpaperData.systemWallpaperInfo,
screen.toFlag(),
surface,
)
} else if (wallpaper is WallpaperModel.StaticWallpaperModel) {
val staticPreviewView =
LayoutInflater.from(applicationContext)
.inflate(R.layout.fullscreen_wallpaper_preview, null)
surface.attachView(staticPreviewView)
// Bind static wallpaper
StaticWallpaperPreviewBinder.bind(
staticPreviewView.requireViewById(R.id.low_res_image),
staticPreviewView.requireViewById(R.id.full_res_image),
viewModel.staticWallpaperPreviewViewModel,
screenOrientation,
viewLifecycleOwner,
)
}
}
}
}
override fun surfaceDestroyed(holder: SurfaceHolder) {
job?.cancel()
}
}
)
// TODO (b/300979155): Clean up surface when no longer needed, e.g. onDestroyed
}
}
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