Add feature double tap for fullscreen toggle

CHANGELOG.md

@@ -1,3 +1,6 @@
+## [Unreleased]
+* 👆 [#932](https://github.com/fluttercommunity/chewie/pull/932): Add `ChewieController.allowDoubleTapToggleFullScreen` (default `true`) to toggle fullscreen with a double tap on the video. Thanks [Ortes](https://github.com/Ortes).
+
 ## [1.15.0]
 * 🌐 [#946](https://github.com/fluttercommunity/chewie/pull/946): Web: enter the browser's native (OS-level) fullscreen via the Fullscreen API instead of only expanding the Flutter view inside the browser window. Pressing Escape to leave browser fullscreen also exits Chewie's fullscreen. Controlled by the new `ChewieController.useNativeFullScreenOnWeb` flag (defaults to `true`; no effect on non-web platforms). Thanks [Ortes](https://github.com/Ortes).
 * 🖱️ [#950](https://github.com/fluttercommunity/chewie/pull/950): Show click cursor on hover over Material controls and progress bar. Thanks [Ortes](https://github.com/Ortes).

lib/src/chewie_player.dart

@@ -364,6 +364,7 @@ class ChewieController extends ChangeNotifier {
     this.hideControlsTimer = defaultHideControlsTimer,
     this.controlsSafeAreaMinimum = EdgeInsets.zero,
     this.pauseOnBackgroundTap = false,
+    this.allowDoubleTapToggleFullScreen = true,
   }) : assert(
          playbackSpeeds.every((speed) => speed > 0),
          'The playbackSpeeds values must all be greater than 0',
@@ -425,6 +426,7 @@ class ChewieController extends ChangeNotifier {
     )?
     routePageBuilder,
     bool? pauseOnBackgroundTap,
+    bool? allowDoubleTapToggleFullScreen,
   }) {
     return ChewieController(
       draggableProgressBar: draggableProgressBar ?? this.draggableProgressBar,
@@ -492,6 +494,8 @@ class ChewieController extends ChangeNotifier {
       progressIndicatorDelay:
           progressIndicatorDelay ?? this.progressIndicatorDelay,
       pauseOnBackgroundTap: pauseOnBackgroundTap ?? this.pauseOnBackgroundTap,
+      allowDoubleTapToggleFullScreen:
+          allowDoubleTapToggleFullScreen ?? this.allowDoubleTapToggleFullScreen,
     );
   }
 
@@ -685,6 +689,9 @@ class ChewieController extends ChangeNotifier {
   /// Defines if the player should pause when the background is tapped
   final bool pauseOnBackgroundTap;
 
+  /// Defines if double tap should toggle fullscreen mode
+  final bool allowDoubleTapToggleFullScreen;
+
   static ChewieController of(BuildContext context) {
     final chewieControllerProvider = context
         .dependOnInheritedWidgetOfExactType<ChewieControllerProvider>()!;

lib/src/material/material_controls.dart

@@ -364,6 +364,9 @@ class _MaterialControlsState extends State<MaterialControls>
           });
         }
       },
+      onDoubleTap: chewieController.allowDoubleTapToggleFullScreen
+          ? _onExpandCollapse
+          : null,
       child: Container(
         alignment: Alignment.center,
         color: Colors