Add chats list to the "My location" tab

OsmAnd-telegram/res/layout/fragment_my_location_tab.xml

@@ -4,8 +4,7 @@
 	xmlns:app="http://schemas.android.com/apk/res-auto"
 	xmlns:tools="http://schemas.android.com/tools"
 	android:layout_width="match_parent"
-	android:layout_height="match_parent"
+	android:layout_height="match_parent">
-	android:background="?attr/card_bg_color">
 
 	<android.support.design.widget.AppBarLayout
 		android:id="@+id/app_bar_layout"
@@ -96,28 +95,12 @@
 
 	</android.support.design.widget.AppBarLayout>
 
-	<android.support.v4.widget.NestedScrollView
+	<android.support.v7.widget.RecyclerView
+		android:id="@+id/recycler_view"
 		android:layout_width="match_parent"
 		android:layout_height="match_parent"
-		android:paddingTop="@dimen/content_padding_small"
+		android:clipToPadding="false"
-		app:layout_behavior="@string/appbar_scrolling_view_behavior">
+		android:paddingBottom="@dimen/list_view_bottom_padding"
-
+		app:layout_behavior="@string/appbar_scrolling_view_behavior"/>
-		<LinearLayout
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:orientation="vertical">
-
-			<View
-				android:layout_width="match_parent"
-				android:layout_height="350dp"/>
-
-			<View
-				android:layout_width="match_parent"
-				android:layout_height="350dp"
-				android:background="@android:color/holo_blue_light"/>
-
-		</LinearLayout>
-
-	</android.support.v4.widget.NestedScrollView>
 
 </android.support.design.widget.CoordinatorLayout>

OsmAnd-telegram/res/layout/user_list_item.xml

@@ -57,6 +57,15 @@
 
 			</LinearLayout>
 
+			<CheckBox
+				android:id="@+id/check_box"
+				android:layout_width="wrap_content"
+				android:layout_height="wrap_content"
+				android:layout_marginEnd="@dimen/content_padding_standard"
+				android:layout_marginRight="@dimen/content_padding_standard"
+				android:visibility="gone"
+				tools:visibility="visible"/>
+
 		</LinearLayout>
 
 	</FrameLayout>

OsmAnd-telegram/res/values/dimens.xml

@@ -15,7 +15,7 @@
 	<dimen name="dialog_button_height">36dp</dimen>
 	<dimen name="dialog_button_radius">2dp</dimen>
 
-	<dimen name="list_item_height">60dp</dimen>
+	<dimen name="list_item_height">56dp</dimen>
 	<dimen name="list_item_height_min">48dp</dimen>
 
 	<dimen name="list_item_icon_size">32dp</dimen>

OsmAnd-telegram/src/net/osmand/telegram/ui/MainActivity.kt

@@ -411,7 +411,7 @@ class MainActivity : AppCompatActivity(), TelegramListener {
 
 	class ViewPagerAdapter(fm: FragmentManager) : FragmentPagerAdapter(fm) {
 
-		private val fragments = listOf(MyLocationTabFragment(), LiveNowTabFragment())
+		private val fragments = listOf<Fragment>(MyLocationTabFragment(), LiveNowTabFragment())
 
 		override fun getItem(position: Int) = fragments[position]
 

OsmAnd-telegram/src/net/osmand/telegram/ui/MyLocationTabFragment.kt

@@ -1,18 +1,30 @@
 package net.osmand.telegram.ui
 
 import android.animation.*
+import android.graphics.Bitmap
+import android.graphics.drawable.Drawable
 import android.graphics.drawable.GradientDrawable
 import android.os.Build
 import android.os.Bundle
 import android.support.design.widget.AppBarLayout
 import android.support.v4.app.Fragment
 import android.support.v4.content.ContextCompat
+import android.support.v7.widget.LinearLayoutManager
+import android.support.v7.widget.RecyclerView
 import android.view.*
 import android.widget.*
 import net.osmand.telegram.R
 import net.osmand.telegram.TelegramApplication
+import net.osmand.telegram.helpers.TelegramHelper
+import net.osmand.telegram.helpers.TelegramHelper.TelegramListener
+import net.osmand.telegram.ui.MyLocationTabFragment.MyLocationListAdapter.ChatViewHolder
+import org.drinkless.td.libcore.telegram.TdApi
 
-class MyLocationTabFragment : Fragment() {
+class MyLocationTabFragment : Fragment(), TelegramListener {
+
+	companion object {
+		private const val SELECTED_CHATS_KEY = "selected_chats"
+	}
 
 	private var textMarginSmall: Int = 0
 	private var textMarginBig: Int = 0
@@ -22,6 +34,8 @@ class MyLocationTabFragment : Fragment() {
 	private val app: TelegramApplication
 		get() = activity?.application as TelegramApplication
 
+	private val telegramHelper get() = app.telegramHelper
+
 	private lateinit var appBarLayout: AppBarLayout
 	private lateinit var textContainer: LinearLayout
 	private lateinit var title: TextView
@@ -30,9 +44,13 @@ class MyLocationTabFragment : Fragment() {
 
 	private lateinit var searchBoxBg: GradientDrawable
 
+	private val adapter = MyLocationListAdapter()
+
 	private var appBarCollapsed = false
 	private lateinit var appBarOutlineProvider: ViewOutlineProvider
 
+	private val selectedChats = HashSet<Long>()
+
 	override fun onCreateView(
 		inflater: LayoutInflater,
 		container: ViewGroup?,
@@ -43,6 +61,10 @@ class MyLocationTabFragment : Fragment() {
 		searchBoxHeight = resources.getDimensionPixelSize(R.dimen.search_box_height)
 		searchBoxSidesMargin = resources.getDimensionPixelSize(R.dimen.content_padding_half)
 
+		savedInstanceState?.apply {
+			selectedChats.addAll(getLongArray(SELECTED_CHATS_KEY).toSet())
+		}
+
 		val mainView = inflater.inflate(R.layout.fragment_my_location_tab, container, false)
 
 		appBarLayout = mainView.findViewById<AppBarLayout>(R.id.app_bar_layout).apply {
@@ -88,13 +110,68 @@ class MyLocationTabFragment : Fragment() {
 				.setImageDrawable(app.uiUtils.getThemedIcon(R.drawable.ic_action_search_dark))
 		}
 
+		mainView.findViewById<RecyclerView>(R.id.recycler_view).apply {
+			layoutManager = LinearLayoutManager(context)
+			adapter = this@MyLocationTabFragment.adapter
+		}
+
 		return mainView
 	}
 
+	override fun onResume() {
+		super.onResume()
+		updateList()
+	}
+
+	override fun onSaveInstanceState(outState: Bundle) {
+		super.onSaveInstanceState(outState)
+		outState.putLongArray(SELECTED_CHATS_KEY, selectedChats.toLongArray())
+	}
+
+	override fun onTelegramStatusChanged(
+		prevTelegramAuthorizationState: TelegramHelper.TelegramAuthorizationState,
+		newTelegramAuthorizationState: TelegramHelper.TelegramAuthorizationState
+	) {
+		when (newTelegramAuthorizationState) {
+			TelegramHelper.TelegramAuthorizationState.READY -> {
+				updateList()
+			}
+			TelegramHelper.TelegramAuthorizationState.CLOSED,
+			TelegramHelper.TelegramAuthorizationState.UNKNOWN -> {
+				adapter.chats = emptyList()
+			}
+			else -> Unit
+		}
+	}
+
+	override fun onTelegramChatsRead() {
+		updateList()
+	}
+
+	override fun onTelegramChatsChanged() {
+		updateList()
+	}
+
+	override fun onTelegramChatChanged(chat: TdApi.Chat) {
+		updateList()
+	}
+
+	override fun onTelegramUserChanged(user: TdApi.User) {
+		updateList()
+	}
+
+	override fun onTelegramError(code: Int, message: String) {
+	}
+
+	override fun onSendLiveLocationError(code: Int, message: String) {
+	}
+
 	private fun adjustText() {
 		val gravity = if (appBarCollapsed) Gravity.START else Gravity.CENTER
 		val padding = if (appBarCollapsed) textMarginSmall else textMarginBig
-		textContainer.setPadding(padding, 0, padding, 0)
+		textContainer.apply {
+			setPadding(padding, paddingTop, padding, paddingBottom)
+		}
 		title.gravity = gravity
 		description.gravity = gravity
 	}
@@ -138,4 +215,81 @@ class MyLocationTabFragment : Fragment() {
 		}
 		animatorSet.start()
 	}
+
+	private fun updateList() {
+		val chatList = telegramHelper.getChatList()
+		val chats: MutableList<TdApi.Chat> = mutableListOf()
+		for (orderedChat in chatList) {
+			val chat = telegramHelper.getChat(orderedChat.chatId)
+			if (chat != null) {
+				chats.add(chat)
+			}
+		}
+		adapter.chats = chats
+	}
+
+	inner class MyLocationListAdapter : RecyclerView.Adapter<ChatViewHolder>() {
+
+		var chats: List<TdApi.Chat> = emptyList()
+			set(value) {
+				field = value
+				notifyDataSetChanged()
+			}
+
+		override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ChatViewHolder {
+			val view = LayoutInflater.from(parent.context)
+				.inflate(R.layout.user_list_item, parent, false)
+			return ChatViewHolder(view)
+		}
+
+		override fun onBindViewHolder(holder: ChatViewHolder, position: Int) {
+			val chat = chats[position]
+			val lastItem = position == itemCount - 1
+
+			var drawable: Drawable? = null
+			var bitmap: Bitmap? = null
+			val chatPhoto = chat.photo?.small
+			if (chatPhoto != null && chatPhoto.local.path.isNotEmpty()) {
+				bitmap = app.uiUtils.getCircleBitmap(chatPhoto.local.path)
+			}
+			if (bitmap == null) {
+				drawable = app.uiUtils.getThemedIcon(R.drawable.ic_group)
+			}
+			if (bitmap != null) {
+				holder.icon?.setImageBitmap(bitmap)
+			} else {
+				holder.icon?.setImageDrawable(drawable)
+			}
+			holder.title?.text = chat.title
+			holder.description?.text = "Some description" // FIXME
+			holder.checkBox?.apply {
+				visibility = View.VISIBLE
+				setOnCheckedChangeListener(null)
+				isChecked = selectedChats.contains(chat.id)
+				setOnCheckedChangeListener { _, isChecked ->
+					if (isChecked) {
+						selectedChats.add(chat.id)
+					} else {
+						selectedChats.remove(chat.id)
+					}
+				}
+			}
+			holder.bottomShadow?.visibility = if (lastItem) View.VISIBLE else View.GONE
+			holder.itemView.setOnClickListener {
+				holder.checkBox?.apply {
+					isChecked = !isChecked
+				}
+			}
+		}
+
+		override fun getItemCount() = chats.size
+
+		inner class ChatViewHolder(val view: View) : RecyclerView.ViewHolder(view) {
+			val icon: ImageView? = view.findViewById(R.id.icon)
+			val title: TextView? = view.findViewById(R.id.title)
+			val description: TextView? = view.findViewById(R.id.description)
+			val checkBox: CheckBox? = view.findViewById(R.id.check_box)
+			val bottomShadow: View? = view.findViewById(R.id.bottom_shadow)
+		}
+	}
 }