From f08ab91985cd855f96adf9279eb8b505b63b7dc1 Mon Sep 17 00:00:00 2001
From: wood1986 <5212215+wood1986@users.noreply.github.com>
Date: Thu, 14 Jul 2022 11:10:18 -0700
Subject: [PATCH] feat: add full screen support based on expo-av implementation

---
 .../exoplayer/FullScreenPlayerView.java       | 71 +++++++++++++++++++
 .../exoplayer/ReactExoplayerView.java         | 11 ++-
 .../res/layout/exo_player_control_view.xml    |  8 +++
 android/src/main/res/values/styles.xml        |  7 ++
 4 files changed, 95 insertions(+), 2 deletions(-)
 create mode 100644 android/src/main/java/com/brentvatne/exoplayer/FullScreenPlayerView.java
 create mode 100644 android/src/main/res/values/styles.xml

diff --git a/android/src/main/java/com/brentvatne/exoplayer/FullScreenPlayerView.java b/android/src/main/java/com/brentvatne/exoplayer/FullScreenPlayerView.java
new file mode 100644
index 0000000000..72e09aae4a
--- /dev/null
+++ b/android/src/main/java/com/brentvatne/exoplayer/FullScreenPlayerView.java
@@ -0,0 +1,71 @@
+package com.brentvatne.exoplayer;
+
+import android.app.Dialog;
+import android.content.Context;
+import android.view.ViewGroup;
+import android.widget.FrameLayout;
+import android.widget.ImageButton;
+
+import com.google.android.exoplayer2.ui.PlayerControlView;
+
+public class FullScreenPlayerView extends Dialog {
+  private final PlayerControlView playerControlView;
+  private final ExoPlayerView exoPlayerView;
+  private ViewGroup parent;
+  private final FrameLayout containerView;
+
+  public FullScreenPlayerView(Context context, ExoPlayerView exoPlayerView, PlayerControlView playerControlView) {
+    super(context, android.R.style.Theme_Black_NoTitleBar_Fullscreen);
+    this.playerControlView = playerControlView;
+    this.exoPlayerView = exoPlayerView;
+    containerView = new FrameLayout(context);
+    setContentView(containerView, generateDefaultLayoutParams());
+  }
+
+  @Override
+  protected void onStart() {
+    parent = (FrameLayout)(exoPlayerView.getParent());
+
+    parent.removeView(exoPlayerView);
+    containerView.addView(exoPlayerView, generateDefaultLayoutParams());
+
+    if (playerControlView != null) {
+      ImageButton imageButton = playerControlView.findViewById(com.brentvatne.react.R.id.exo_fullscreen);
+      imageButton.setBackgroundResource(com.google.android.exoplayer2.ui.R.drawable.exo_icon_fullscreen_exit);
+      imageButton.setContentDescription(getContext().getString(com.google.android.exoplayer2.ui.R.string.exo_controls_fullscreen_exit_description));
+      parent.removeView(playerControlView);
+      containerView.addView(playerControlView, generateDefaultLayoutParams());
+
+    }
+
+    super.onStart();
+  }
+
+  @Override
+  protected void onStop() {
+    containerView.removeView(exoPlayerView);
+    parent.addView(exoPlayerView, generateDefaultLayoutParams());
+
+    if (playerControlView != null) {
+      ImageButton imageButton = playerControlView.findViewById(com.brentvatne.react.R.id.exo_fullscreen);
+      imageButton.setBackgroundResource(com.google.android.exoplayer2.ui.R.drawable.exo_icon_fullscreen_enter);
+      imageButton.setContentDescription(getContext().getString(com.google.android.exoplayer2.ui.R.string.exo_controls_fullscreen_enter_description));
+      containerView.removeView(playerControlView);
+      parent.addView(playerControlView, generateDefaultLayoutParams());
+    }
+
+    parent.requestLayout();
+    parent = null;
+
+    super.onStop();
+  }
+
+  private FrameLayout.LayoutParams generateDefaultLayoutParams() {
+    FrameLayout.LayoutParams layoutParams = new FrameLayout.LayoutParams(
+        FrameLayout.LayoutParams.MATCH_PARENT,
+        FrameLayout.LayoutParams.MATCH_PARENT
+    );
+    layoutParams.setMargins(0, 0, 0, 0);
+    return layoutParams;
+  }
+}
diff --git a/android/src/main/java/com/brentvatne/exoplayer/ReactExoplayerView.java b/android/src/main/java/com/brentvatne/exoplayer/ReactExoplayerView.java
index 3dccad9398..8180f19b6c 100644
--- a/android/src/main/java/com/brentvatne/exoplayer/ReactExoplayerView.java
+++ b/android/src/main/java/com/brentvatne/exoplayer/ReactExoplayerView.java
@@ -140,6 +140,7 @@ class ReactExoplayerView extends FrameLayout implements
     private Player.Listener eventListener;
 
     private ExoPlayerView exoPlayerView;
+    private FullScreenPlayerView fullScreenPlayerView;
 
     private DataSource.Factory mediaDataSourceFactory;
     private ExoPlayer player;
@@ -399,6 +400,10 @@ public void onClick(View v) {
             }
         });
 
+        //Handling the fullScreenButton click event
+        ImageButton fullScreenButton = playerControlView.findViewById(R.id.exo_fullscreen);
+        fullScreenButton.setOnClickListener(v -> setFullscreen(!isFullscreen));
+
         // Invoking onPlaybackStateChanged and onPlayWhenReadyChanged events for Player
         eventListener = new Player.Listener() {
             @Override
@@ -655,6 +660,7 @@ private void finishPlayerInitialization() {
         setControls(controls);
         applyModifiers();
         startBufferCheckTimer();
+        fullScreenPlayerView = new FullScreenPlayerView(getContext(), exoPlayerView, playerControlView);
     }
 
     private DrmSessionManager buildDrmSessionManager(UUID uuid, String licenseUrl, String[] keyRequestPropertiesArray) throws UnsupportedDrmException {
@@ -1752,14 +1758,15 @@ public void setFullscreen(boolean fullscreen) {
                         | SYSTEM_UI_FLAG_FULLSCREEN;
             }
             eventEmitter.fullscreenWillPresent();
-            decorView.setSystemUiVisibility(uiOptions);
+            fullScreenPlayerView.show();
             eventEmitter.fullscreenDidPresent();
         } else {
             uiOptions = View.SYSTEM_UI_FLAG_VISIBLE;
             eventEmitter.fullscreenWillDismiss();
-            decorView.setSystemUiVisibility(uiOptions);
+            fullScreenPlayerView.dismiss();
             eventEmitter.fullscreenDidDismiss();
         }
+        post(() -> decorView.setSystemUiVisibility(uiOptions));
     }
 
     public void setUseTextureView(boolean useTextureView) {
diff --git a/android/src/main/res/layout/exo_player_control_view.xml b/android/src/main/res/layout/exo_player_control_view.xml
index becee6a901..19440912d3 100644
--- a/android/src/main/res/layout/exo_player_control_view.xml
+++ b/android/src/main/res/layout/exo_player_control_view.xml
@@ -71,6 +71,14 @@
             android:paddingRight="4dp"
             android:includeFontPadding="false"
             android:textColor="#FFBEBEBE"/>
+
+        <ImageButton
+            android:id="@id/exo_fullscreen"
+            style="@style/ExoMediaButton.FullScreen"
+            android:layout_width="30dp"
+            android:layout_height="30dp"
+            android:layout_margin="4dp"
+            android:scaleType="fitCenter" />
     </LinearLayout>
 
 </LinearLayout>
diff --git a/android/src/main/res/values/styles.xml b/android/src/main/res/values/styles.xml
new file mode 100644
index 0000000000..3459d9d6e2
--- /dev/null
+++ b/android/src/main/res/values/styles.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <style name="ExoMediaButton.FullScreen">
+        <item name="android:src">@drawable/exo_icon_fullscreen_enter</item>
+        <item name="android:contentDescription">@string/exo_controls_fullscreen_enter_description</item>
+    </style>
+</resources>
\ No newline at end of file