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package moe.yuuta.workmode
import android.app.Activity
import android.content.Context
import android.content.Intent
import android.content.pm.PackageManager
import android.graphics.drawable.BitmapDrawable
import android.graphics.drawable.Drawable
import android.os.Bundle
import android.util.LruCache
import android.view.LayoutInflater
import android.view.MenuItem
import android.view.View
import android.view.ViewGroup
import android.widget.*
import androidx.appcompat.app.AppCompatActivity
import androidx.core.content.ContextCompat
import androidx.recyclerview.widget.DiffUtil
import androidx.recyclerview.widget.LinearLayoutManager
import androidx.recyclerview.widget.RecyclerView
import com.elvishew.xlog.Logger
import com.elvishew.xlog.XLog
import com.google.android.material.floatingactionbutton.FloatingActionButton
import moe.yuuta.workmode.async.Async
import moe.yuuta.workmode.async.Callback
import moe.yuuta.workmode.async.Runnable
import moe.yuuta.workmode.async.StoppableGroup
import moe.yuuta.workmode.suspend.AsyncSuspender
import moe.yuuta.workmode.suspend.data.TransferableSuspendedApp
import java.util.*
import java.util.concurrent.CompletableFuture
import java.util.stream.Collectors
class ApplicationPickerActivity : AppCompatActivity() {
companion object {
const val EXTRA_SELECTED_PACKAGES = "moe.yuuta.workmode.ApplicationPickerActivity.EXTRA_SELECTED_PACKAGES"
}
private val logger: Logger = XLog.tag("ApplicationPickerActivity").build()
private lateinit var mAdapter: Adapter
private lateinit var mLoadAppsFuture: CompletableFuture<List<TransferableSuspendedApp>>
private lateinit var mProgressBar: ProgressBar
private lateinit var fab: FloatingActionButton
private fun setResultAndFinish(packages: List<TransferableSuspendedApp>?) {
val selected = arrayListOf<TransferableSuspendedApp>()
selected.addAll(packages ?: listOf())
selected.stream()
.forEach {
it.trimData()
}
setResult(if (packages == null) Activity.RESULT_CANCELED else Activity.RESULT_OK,
Intent().putExtra(EXTRA_SELECTED_PACKAGES, selected))
finish()
}
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_application_picker)
supportActionBar?.setDisplayHomeAsUpEnabled(true)
val recyclerView: RecyclerView = findViewById(R.id.recycler_apps)
fab = findViewById(R.id.fab_ok)
mProgressBar = findViewById(R.id.progress_load)
recyclerView.layoutManager = LinearLayoutManager(this, RecyclerView.VERTICAL, false)
mAdapter = Adapter()
recyclerView.adapter = mAdapter
fab.setOnClickListener {
setResultAndFinish(mAdapter.data.stream()
.filter {
return@filter it.selected
}
.map {
return@map it.packageInfo
}
.collect(Collectors.toList()))
}
load()
}
override fun onOptionsItemSelected(item: MenuItem): Boolean {
return when (item.itemId) {
android.R.id.home -> {
onBackPressed()
true
}
else -> super.onOptionsItemSelected(item)
}
}
private fun load() {
if (::mLoadAppsFuture.isInitialized && !mLoadAppsFuture.isDone) {
mLoadAppsFuture.cancel(true)
}
mLoadAppsFuture = AsyncSuspender(this).getInstalledApplicationsAcrossUser(0)
mProgressBar.visibility = View.VISIBLE
fab.visibility = View.GONE
mLoadAppsFuture
.handle { result, e ->
runOnUiThread {
mProgressBar.visibility = View.GONE
fab.visibility = View.VISIBLE
if (e == null && result != null) {
val selected = intent.getParcelableArrayListExtra(EXTRA_SELECTED_PACKAGES) ?: listOf<TransferableSuspendedApp>()
logger.d("Selected: $selected")
if (BuildConfig.DEBUG) logger.d("Installed: $result")
display(result.stream()
.map {
return@map SelectedApp(it, selected.any { a -> return@any a.essentiallyEqual(it) })
}
.collect(Collectors.toList()))
} else {
Toast.makeText(this@ApplicationPickerActivity,
R.string.error_load_applications, Toast.LENGTH_LONG)
.show()
if (e != null) {
logger.e("Load applications", e)
} else {
logger.e("Cannot load applications (no stacktrace)")
}
// Not sure if the toast will dismiss immediately
// setResultAndFinish()
}
}
}
}
private fun display(result: List<SelectedApp>) {
val diff = DiffUtil.calculateDiff(object : DiffUtil.Callback() {
override fun getOldListSize(): Int = mAdapter.itemCount
override fun getNewListSize(): Int = result.size
override fun areItemsTheSame(oldItemPosition: Int, newItemPosition: Int): Boolean =
mAdapter.data[oldItemPosition]::class.java.name ==
result[newItemPosition]::class.java.name
override fun areContentsTheSame(oldItemPosition: Int, newItemPosition: Int): Boolean =
mAdapter.data[oldItemPosition] ==
result[newItemPosition]
})
mAdapter.data = result.toMutableList()
diff.dispatchUpdatesTo(mAdapter)
}
override fun onDestroy() {
if (::mLoadAppsFuture.isInitialized && !mLoadAppsFuture.isDone) {
mLoadAppsFuture.cancel(true)
}
mAdapter.destroy()
super.onDestroy()
}
private class Adapter : RecyclerView.Adapter<Adapter.VH>() {
private val mIconMemoryCaches: LruCache<String, Drawable> =
LruCache(Runtime.getRuntime().maxMemory().toInt() / 5)
private val mStoppableGroup: StoppableGroup = StoppableGroup()
internal var data: MutableList<SelectedApp> = mutableListOf()
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): VH =
VH(LayoutInflater.from(parent.context).inflate(R.layout.item_application_select, parent, false))
override fun getItemCount(): Int = data.size
override fun onBindViewHolder(holder: VH, position: Int) {
val context = holder.itemView.context
val packageInfo = data[position]
val icon = if (packageInfo.packageInfo.icon != null) BitmapDrawable(context.resources,
packageInfo.packageInfo.icon)
else getIconFromMemoryCache(packageInfo.packageInfo.packageName)
if (icon != null) {
holder.icon.setImageDrawable(icon)
} else {
loadIcon(packageInfo.packageInfo.packageName, holder.itemView.context, holder.icon)
}
holder.title.text = if (packageInfo.packageInfo.label != null) packageInfo.packageInfo.label
else context
.packageManager
.getApplicationLabel(
context.packageManager.getApplicationInfo(packageInfo.packageInfo.packageName, 0)
)
holder.summary.text = context.getString(R.string.app_list_user_template, packageInfo.packageInfo.userId)
holder.checkBox.isChecked = packageInfo.selected
holder.checkBox.setOnClickListener {
packageInfo.selected = holder.checkBox.isChecked
Collections.replaceAll(data,
data.stream()
.filter { return@filter it.packageInfo == packageInfo.packageInfo }
.findFirst()
.get(),
packageInfo)
}
}
class VH(itemView: View) : RecyclerView.ViewHolder(itemView) {
internal val icon: ImageView = itemView.findViewById(android.R.id.icon)
internal val title: TextView = itemView.findViewById(android.R.id.title)
internal val summary: TextView = itemView.findViewById(android.R.id.summary)
internal val checkBox: CheckBox = itemView.findViewById(android.R.id.checkbox)
}
private fun addDrawableToMemoryCache(pkg: String?, icon: Drawable) {
if (getIconFromMemoryCache(pkg) == null) {
mIconMemoryCaches.put(pkg ?: "", icon)
}
}
private fun getIconFromMemoryCache(pkg: String?): Drawable? {
return mIconMemoryCaches.get(pkg ?: "")
}
private fun loadIcon(pkg: String, context: Context, imageView: ImageView) {
mStoppableGroup.add(Async.beginTask(object : Runnable<Drawable> {
override fun run(): Drawable {
var icon: Drawable?
try {
icon = context.packageManager
.getApplicationIcon(pkg)
} catch (ignore: PackageManager.NameNotFoundException) {
icon = null
}
if (icon == null) {
icon = ContextCompat.getDrawable(context, android.R.mipmap.sym_def_app_icon)!!
}
addDrawableToMemoryCache(pkg, icon)
return icon
}
}, object : Callback<Drawable> {
override fun onStop(success: Boolean, result: Drawable?, e: Throwable?) {
if (success && result != null) imageView.setImageDrawable(result)
}
}))
}
fun destroy() {
mStoppableGroup.stop()
}
}
}
private data class SelectedApp(
val packageInfo: TransferableSuspendedApp,
var selected: Boolean
)
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