From 305e44cff7b56e899c8885da10df0b1f1bdad632 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Joa=CC=83o=20Carvalho?=
 <joao.carvalho@present-technologies.com>
Date: Mon, 7 Mar 2022 15:21:58 +0000
Subject: [PATCH] Allow video zooming with InteractiveViewer widget.

---
 lib/src/chewie_player.dart        | 10 +++++++++
 lib/src/player_with_controls.dart | 34 +++++++++++++++++++------------
 2 files changed, 31 insertions(+), 13 deletions(-)

diff --git a/lib/src/chewie_player.dart b/lib/src/chewie_player.dart
index 1b5c83100..bffb4d2e9 100644
--- a/lib/src/chewie_player.dart
+++ b/lib/src/chewie_player.dart
@@ -262,6 +262,8 @@ class ChewieController extends ChangeNotifier {
     this.optionsBuilder,
     this.additionalOptions,
     this.showControls = true,
+    this.zoomAndPan = false,
+    this.maxScale = 2.5,
     this.subtitle,
     this.subtitleBuilder,
     this.customControls,
@@ -303,6 +305,8 @@ class ChewieController extends ChangeNotifier {
     Future<void> Function(BuildContext, List<OptionItem>)? optionsBuilder,
     List<OptionItem> Function(BuildContext)? additionalOptions,
     bool? showControls,
+    bool? zoomAndPan,
+    double? maxScale,
     Subtitles? subtitle,
     Widget Function(BuildContext, dynamic)? subtitleBuilder,
     Widget? customControls,
@@ -426,6 +430,12 @@ class ChewieController extends ChangeNotifier {
   /// Whether or not to show the controls at all
   final bool showControls;
 
+  /// Whether or not to allow zooming and panning
+  final bool zoomAndPan;
+
+  /// Max scale when zooming
+  final double maxScale;
+
   /// Defines customised controls. Check [MaterialControls] or
   /// [CupertinoControls] for reference.
   final Widget? customControls;
diff --git a/lib/src/player_with_controls.dart b/lib/src/player_with_controls.dart
index 5b683147d..f3c0120a7 100644
--- a/lib/src/player_with_controls.dart
+++ b/lib/src/player_with_controls.dart
@@ -37,11 +37,16 @@ class PlayerWithControls extends StatelessWidget {
         children: <Widget>[
           if (chewieController.placeholder != null)
             chewieController.placeholder!,
-          Center(
-            child: AspectRatio(
-              aspectRatio: chewieController.aspectRatio ??
-                  chewieController.videoPlayerController.value.aspectRatio,
-              child: VideoPlayer(chewieController.videoPlayerController),
+          InteractiveViewer(
+            maxScale: chewieController.maxScale,
+            panEnabled: chewieController.zoomAndPan,
+            scaleEnabled: chewieController.zoomAndPan,
+            child: Center(
+              child: AspectRatio(
+                aspectRatio: chewieController.aspectRatio ??
+                    chewieController.videoPlayerController.value.aspectRatio,
+                child: VideoPlayer(chewieController.videoPlayerController),
+              ),
             ),
           ),
           if (chewieController.overlay != null) chewieController.overlay!,
@@ -52,14 +57,17 @@ class PlayerWithControls extends StatelessWidget {
                 PlayerNotifier notifier,
                 Widget? widget,
               ) =>
-                  AnimatedOpacity(
-                opacity: notifier.hideStuff ? 0.0 : 0.8,
-                duration: const Duration(
-                  milliseconds: 250,
-                ),
-                child: Container(
-                  decoration: const BoxDecoration(color: Colors.black54),
-                  child: Container(),
+                  Visibility(
+                visible: !notifier.hideStuff,
+                child: AnimatedOpacity(
+                  opacity: notifier.hideStuff ? 0.0 : 0.8,
+                  duration: const Duration(
+                    milliseconds: 250,
+                  ),
+                  child: Container(
+                    decoration: const BoxDecoration(color: Colors.black54),
+                    child: Container(),
+                  ),
                 ),
               ),
             ),