add initial approach for pip mode (wip)

Signed-off-by: Marcel Hibbe <dev@mhibbe.de>

app/src/main/AndroidManifest.xml

@@ -124,7 +124,8 @@
 
         <activity
             android:name=".activities.MagicCallActivity"
-            android:configChanges="orientation|screenSize"
+            android:supportsPictureInPicture="true"
+            android:configChanges="screenSize|smallestScreenSize|screenLayout|orientation"
             android:launchMode="singleTask" />
 
         <activity

app/src/main/java/com/nextcloud/talk/activities/MagicCallActivity.kt

@@ -23,12 +23,15 @@
 package com.nextcloud.talk.activities
 
 import android.app.KeyguardManager
+import android.app.PictureInPictureParams
 import android.content.res.Configuration
 import android.os.Build
 import android.os.Bundle
-import android.view.View
+import android.util.Log
+import android.util.Rational
 import android.view.Window
 import android.view.WindowManager
+import androidx.annotation.RequiresApi
 import autodagger.AutoInjector
 import com.bluelinelabs.conductor.Conductor
 import com.bluelinelabs.conductor.Router
@@ -38,7 +41,6 @@ import com.nextcloud.talk.R
 import com.nextcloud.talk.application.NextcloudTalkApplication
 import com.nextcloud.talk.controllers.CallController
 import com.nextcloud.talk.controllers.CallNotificationController
-import com.nextcloud.talk.controllers.ChatController
 import com.nextcloud.talk.databinding.ActivityMagicCallBinding
 import com.nextcloud.talk.events.ConfigurationChangeEvent
 import com.nextcloud.talk.utils.bundle.BundleKeys
@@ -46,14 +48,11 @@ import com.nextcloud.talk.utils.bundle.BundleKeys
 @AutoInjector(NextcloudTalkApplication::class)
 class MagicCallActivity : BaseActivity() {
     lateinit var binding: ActivityMagicCallBinding
-
-    private lateinit var chatController: ChatController
-
     private var router: Router? = null
-    private var chatRouter: Router? = null
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
+        Log.d(TAG, "onCreate")
         NextcloudTalkApplication.sharedApplication!!.componentApplication.inject(this)
         setTheme(R.style.CallTheme)
 
@@ -63,7 +62,7 @@ class MagicCallActivity : BaseActivity() {
             WindowManager.LayoutParams.FLAG_FULLSCREEN or
                 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
         )
-        window.decorView.systemUiVisibility = systemUiVisibility
+       // window.decorView.systemUiVisibility = systemUiVisibility
 
         binding = ActivityMagicCallBinding.inflate(layoutInflater)
         setContentView(binding.root)
@@ -87,30 +86,28 @@ class MagicCallActivity : BaseActivity() {
             }
         }
 
-        val extras = intent.extras ?: Bundle()
-        extras.putBoolean("showToggleChat", true)
-
-        chatController = ChatController(extras)
-        chatRouter = Conductor.attachRouter(this, binding.chatControllerView, savedInstanceState)
-        chatRouter!!.setRoot(
-            RouterTransaction.with(chatController)
-                .pushChangeHandler(HorizontalChangeHandler())
-                .popChangeHandler(HorizontalChangeHandler())
-        )
     }
 
-    fun showChat() {
+    @RequiresApi(Build.VERSION_CODES.O)
+    fun enterPipMode() {
         enableKeyguard()
-        binding.chatControllerView.visibility = View.VISIBLE
-        binding.controllerContainer.visibility = View.GONE
-        chatController.wasDetached = false
-        chatController.pullChatMessages(1)
+        enterPictureInPictureMode(getPipParams())
     }
 
-    fun showCall() {
-        binding.controllerContainer.visibility = View.VISIBLE
-        binding.chatControllerView.visibility = View.GONE
-        chatController.wasDetached = true
+    @RequiresApi(Build.VERSION_CODES.O)
+    override fun onUserLeaveHint() {
+        enterPictureInPictureMode(getPipParams())
+    }
+
+    @RequiresApi(Build.VERSION_CODES.O)
+    private fun getPipParams(): PictureInPictureParams {
+        val pipRatio = Rational(
+            300,
+            500
+        )
+        return PictureInPictureParams.Builder()
+            .setAspectRatio(pipRatio)
+            .build()
     }
 
     override fun onConfigurationChanged(newConfig: Configuration) {
@@ -145,14 +142,25 @@ class MagicCallActivity : BaseActivity() {
         }
     }
 
+    override fun onPictureInPictureModeChanged(isInPictureInPictureMode: Boolean,
+        newConfig: Configuration) {
+        if (isInPictureInPictureMode) {
+            Log.d(TAG, "Hide the full-screen UI (controls, etc.) while in picture-in-picture mode.")
+        } else {
+            Log.d(TAG,"Restore the full-screen UI.")
+        }
+    }
+
+
+
     companion object {
         private val TAG = "MagicCallActivity"
 
-        private val systemUiVisibility: Int
+      /*  private val systemUiVisibility: Int
             get() {
                 var flags = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION or View.SYSTEM_UI_FLAG_FULLSCREEN
                 flags = flags or View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
                 return flags
-            }
+            } */
     }
 }

app/src/main/java/com/nextcloud/talk/controllers/CallController.java

@@ -141,6 +141,7 @@ import javax.inject.Inject;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.annotation.RequiresApi;
 import androidx.appcompat.app.AppCompatActivity;
 import autodagger.AutoInjector;
 import butterknife.BindView;
@@ -372,7 +373,9 @@ public class CallController extends BaseController {
         basicInitialization();
         initViews();
         initPipView();
-        initiateCall();
+        if (!isConnectionEstablished()){
+            initiateCall();
+        }
     }
 
     private void basicInitialization() {
@@ -839,9 +842,10 @@ public class CallController extends BaseController {
         }
     }
 
-    @OnClick(R.id.callControlToggleChat)
+    @RequiresApi(api = Build.VERSION_CODES.O)
+    @OnClick(R.id.callControlEnterPip)
     void onToggleChatClick() {
-        ((MagicCallActivity) getActivity()).showChat();
+        ((MagicCallActivity) getActivity()).enterPipMode();
     }
 
     @OnClick(R.id.callControlHangupView)

app/src/main/java/com/nextcloud/talk/controllers/ChatController.kt

@@ -577,15 +577,6 @@ class ChatController(args: Bundle) :
 
         binding.messageInputView.setPadding(0, 0, 0, 0)
 
-        if (args.containsKey("showToggleChat") && args.getBoolean("showToggleChat")) {
-            binding.callControlToggleChat.visibility = View.VISIBLE
-            wasDetached = true
-        }
-
-        binding.callControlToggleChat.setOnClickListener {
-            (activity as MagicCallActivity).showCall()
-        }
-
         binding.messagesListView.addOnScrollListener(object : RecyclerView.OnScrollListener() {
             override fun onScrollStateChanged(recyclerView: RecyclerView, newState: Int) {
                 super.onScrollStateChanged(recyclerView, newState)
@@ -1459,6 +1450,7 @@ class ChatController(args: Bundle) :
             !activity?.isChangingConfigurations!! &&
             !isLeavingForConversation
         ) {
+            // TODO: don't leave room when going back to call from PIP Mode!!
             wasDetached = true
             leaveRoom()
         }
@@ -2336,7 +2328,7 @@ class ChatController(args: Bundle) :
             menu.findItem(R.id.action_forward_message).isVisible =
                 ChatMessage.MessageType.REGULAR_TEXT_MESSAGE == message.getMessageType()
             if (menu.hasVisibleItems()) {
-                if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.Q) {
+                if (Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.Q) {
                     setForceShowIcon(true)
                 }
                 show()

app/src/main/res/drawable/ic_baseline_picture_in_picture_alt_24.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="#FFFFFF">
+  <path
+      android:fillColor="#FF000000"
+      android:pathData="M19,11h-8v6h8v-6zM23,19L23,4.98C23,3.88 22.1,3 21,3L3,3c-1.1,0 -2,0.88 -2,1.98L1,19c0,1.1 0.9,2 2,2h18c1.1,0 2,-0.9 2,-2zM21,19.02L3,19.02L3,4.97h18v14.05z"/>
+</vector>

app/src/main/res/layout/controller_call.xml

@@ -142,14 +142,14 @@
         android:orientation="horizontal">
 
         <com.facebook.drawee.view.SimpleDraweeView
-            android:id="@+id/callControlToggleChat"
+            android:id="@+id/callControlEnterPip"
             android:layout_width="60dp"
             android:layout_height="match_parent"
             android:layout_marginStart="40dp"
             android:layout_marginEnd="10dp"
             android:elevation="10dp"
             app:backgroundImage="@color/call_buttons_background"
-            app:placeholderImage="@drawable/ic_comment_white"
+            app:placeholderImage="@drawable/ic_baseline_picture_in_picture_alt_24"
             app:roundAsCircle="true" />
 
         <com.facebook.drawee.view.SimpleDraweeView

app/src/main/res/layout/controller_chat.xml

@@ -40,19 +40,6 @@
             android:visibility="gone"
             tools:visibility="visible" />
 
-        <com.facebook.drawee.view.SimpleDraweeView
-            android:id="@+id/callControlToggleChat"
-            android:layout_width="60dp"
-            android:layout_height="60dp"
-            android:layout_alignParentEnd="true"
-            android:layout_margin="16dp"
-            android:elevation="10dp"
-            android:visibility="gone"
-            app:backgroundImage="@color/call_buttons_background"
-            app:placeholderImage="@drawable/ic_call_black_24dp"
-            app:roundAsCircle="true"
-            tools:visibility="visible" />
-
         <LinearLayout
             android:id="@+id/progressBar"
             android:layout_width="match_parent"