WIP #143 Camera support

lib/entity_widgets/controls/camera_controls.dart

@@ -0,0 +1,46 @@
+part of '../../main.dart';
+
+class CameraControlsWidget extends StatefulWidget {
+
+  final String url;
+
+  CameraControlsWidget({Key key, @required this.url}) : super(key: key);
+
+  @override
+  _CameraControlsWidgetState createState() => _CameraControlsWidgetState();
+}
+
+class _CameraControlsWidgetState extends State<CameraControlsWidget> {
+
+  VideoPlayerController _controller;
+
+  @override
+  void initState() {
+    super.initState();
+    Logger.d("Camera source: ${widget.url}");
+    _controller = VideoPlayerController.network(widget.url)
+      ..initialize().then((_) {
+        setState(() {});
+      });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Image.network(widget.url);
+
+    return Center(
+      child: _controller.value.initialized
+          ? AspectRatio(
+        aspectRatio: _controller.value.aspectRatio,
+        child: VideoPlayer(_controller),
+      )
+          : Container(),
+    );
+  }
+
+  @override
+  void dispose() {
+    super.dispose();
+    _controller.dispose();
+  }
+}