Merge remote-tracking branch 'upstream/master' into keyboard

Runtime/editor/editor_window.cs

     public abstract class WindowAdapter : Window {
         static readonly List<WindowAdapter> _windowAdapters = new List<WindowAdapter>();
 
-        public static IEnumerable<WindowAdapter> windowAdapters {
+        public static List<WindowAdapter> windowAdapters {
             get { return _windowAdapters; }
         }
 

Runtime/rendering/layer.cs

         public readonly bool freeze;
 
         internal override flow.Layer addToScene(SceneBuilder builder, Offset layerOffset = null) {
+            layerOffset = layerOffset ?? Offset.zero;
+
             Rect shiftedRect = this.rect.shift(layerOffset);
             builder.addTexture(
                 this.texture,

Runtime/rendering/texture.cs

 namespace Unity.UIWidgets.rendering {
     public class TextureBox : RenderBox {
 
-        public TextureBox(Texture texture) {
+        public TextureBox(Texture texture = null) {
             D.assert(texture != null);
             this._texture = texture;
         }

Runtime/ui/window.cs

 
         public abstract void scheduleFrame(bool regenerateLayerTree = true);
 
-        public void textureFrameAvailable() {
-            this.scheduleFrame(false);
-        }
-
         public abstract void render(Scene scene);
 
         public abstract void scheduleMicrotask(Action callback);

Runtime/widgets/texture.cs

+using Unity.UIWidgets.editor;
+using Unity.UIWidgets.ui;
-        public Texture(Key key, UnityEngine.Texture texture) : base(key: key) {
+        public static void textureFrameAvailable(Window instance = null) {
+            if (instance == null) {
+                WindowAdapter.windowAdapters.ForEach(w => w.scheduleFrame(false));
+            } else {
+                instance.scheduleFrame(false);
+            }
+        }
+        
+        public Texture(Key key = null, UnityEngine.Texture texture = null) : base(key: key) {
             D.assert(texture != null);
             this.texture = texture;
         }

Samples/UIWidgetSample/ToDoAppSample.cs

 using Unity.UIWidgets.rendering;
 using Unity.UIWidgets.ui;
 using Unity.UIWidgets.widgets;
+using UnityEngine;
+using Color = Unity.UIWidgets.ui.Color;
+using Texture = Unity.UIWidgets.widgets.Texture;
 
 namespace UIWidgetsSample {
     public class ToDoAppSample : UIWidgetsSamplePanel {
                 );
             }
 
+            Widget videoTexture() {
+                var texture = Resources.Load<RenderTexture>("VideoSampleRT");
+                return new Center(
+                    child: new Container(
+                        width: 480, height: 270,
+                        child: new Texture(texture: texture)
+                    )
+                );
+            }
+
             public override Widget build(BuildContext context) {
                 var container = new Container(
                     padding: EdgeInsets.all(10),
                             this.textInput(),
                             //      textInput(),
                             this.contents(),
+                            this.videoTexture(),
                         }
                     )
                 );

Samples/UIWidgetSample/UIWidgetSample.unity

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Samples/UIWidgetSample/Resources.meta

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Samples/UIWidgetSample/VideoSampleComponent.cs

+using UnityEngine;
+using UnityEngine.Video;
+using Texture = Unity.UIWidgets.widgets.Texture;
+
+namespace UIWidgetsSample {
+    public class VideoSampleComponent : MonoBehaviour {
+        public VideoClip videoClip;
+        public RenderTexture renderTexture;
+
+        void Start() {
+            var videoPlayer = this.gameObject.AddComponent<VideoPlayer>();
+            videoPlayer.clip = this.videoClip;
+            videoPlayer.targetTexture = this.renderTexture;
+            videoPlayer.isLooping = true;
+            videoPlayer.sendFrameReadyEvents = true;
+            videoPlayer.frameReady += (_, __) => Texture.textureFrameAvailable();
+            videoPlayer.Play();
+        }
+    }
+}

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