using System.Collections.Generic; using Unity.UIWidgets.async; using Unity.UIWidgets.editor; using Unity.UIWidgets.foundation; using Unity.UIWidgets.ui; using Unity.UIWidgets.widgets; using UnityEngine; using UnityEngine.EventSystems; using UnityEngine.UI; using RawImage = UnityEngine.UI.RawImage; using Rect = UnityEngine.Rect; namespace Unity.UIWidgets.engine { public class UIWidgetWindowAdapter : WindowAdapter { readonly WidgetCanvas _widgetCanvas; bool _needsPaint; public override void scheduleFrame(bool regenerateLayerTree = true) { base.scheduleFrame(regenerateLayerTree); this._needsPaint = true; } public UIWidgetWindowAdapter(WidgetCanvas widgetCanvas) { this._widgetCanvas = widgetCanvas; } public override void OnGUI(Event evt) { if (evt.type == EventType.Repaint) { if (!this._needsPaint) { return; } this._needsPaint = false; } base.OnGUI(evt); } protected override Surface createSurface() { return new EditorWindowSurface(this._widgetCanvas.applyRenderTexture); } public override GUIContent titleContent { get { return new GUIContent(this._widgetCanvas.gameObject.name); } } protected override double queryDevicePixelRatio() { return this._widgetCanvas.pixelRatio; } protected override Vector2 queryWindowSize() { return this._widgetCanvas.rectTransform.rect.size; } } [RequireComponent(typeof(RectTransform))] public abstract class WidgetCanvas : RawImage, IPointerDownHandler, IPointerUpHandler, IDragHandler, IPointerEnterHandler, IPointerExitHandler { static Event _repaintEvent; WindowAdapter _windowAdapter; Texture _texture; Vector2 _lastMouseMove; bool _mouseEntered; protected override void OnEnable() { base.OnEnable(); if (_repaintEvent == null) { _repaintEvent = new Event {type = EventType.Repaint}; } D.assert(this._windowAdapter == null); this._windowAdapter = new UIWidgetWindowAdapter(this); this._windowAdapter.OnEnable(); var root = new WidgetsApp( home: this.getWidget(), window: this._windowAdapter, routes: this.routes, textStyle: this.textStyle, pageRouteBuilder: this.pageRouteBuilder, onGenerateRoute: this.onGenerateRoute, onUnknownRoute: this.onUnknownRoute); this._windowAdapter.attachRootWidget(root); this._lastMouseMove = Input.mousePosition; } public double pixelRatio { get { return this.canvas.scaleFactor; } } protected virtual Dictionary routes => null; protected virtual string initialRoute => null; protected virtual RouteFactory onGenerateRoute => null; protected virtual RouteFactory onUnknownRoute => null; protected virtual painting.TextStyle textStyle => null; protected virtual PageRouteFactory pageRouteBuilder => (RouteSettings settings, WidgetBuilder builder) => new PageRouteBuilder( settings: settings, pageBuilder: (BuildContext context, Unity.UIWidgets.animation.Animation animation, Unity.UIWidgets.animation.Animation secondaryAnimation) => builder(context) ); protected override void OnDisable() { D.assert(this._windowAdapter != null); this._windowAdapter.OnDisable(); this._windowAdapter = null; base.OnDisable(); } protected virtual Widget getWidget() { return null; } internal void applyRenderTexture(Rect screenRect, Texture texture, Material mat) { this.texture = texture; this.material = mat; } void Update() { if (EventSystem.current != null && EventSystem.current.currentSelectedGameObject != this.gameObject) { this.unfocusIfNeeded(); } if (this._mouseEntered && (this._lastMouseMove.x != Input.mousePosition.x || this._lastMouseMove.y != Input.mousePosition.y)) { this.handleMouseMove(); } this._lastMouseMove = Input.mousePosition; D.assert(this._windowAdapter != null); this._windowAdapter.Update(); this._windowAdapter.OnGUI(_repaintEvent); } void OnGUI() { if (Event.current.type == EventType.KeyDown || Event.current.type == EventType.KeyUp) { this._windowAdapter.OnGUI(Event.current); } } void handleMouseMove() { var pos = this.getPointPosition(Input.mousePosition); this._windowAdapter.postPointerEvent(new PointerData( timeStamp: Timer.timespanSinceStartup, change: PointerChange.hover, kind: PointerDeviceKind.mouse, device: this.getMouseButtonDown(), physicalX: pos.x, physicalY: pos.y )); } int getMouseButtonDown() { for (int key = 0; key < 3; key++) { if (Input.GetMouseButton(key)) { return key; } } return 0; } public void OnPointerDown(PointerEventData eventData) { EventSystem.current.SetSelectedGameObject(this.gameObject, eventData); var position = this.getPointPosition(eventData); this._windowAdapter.postPointerEvent(new PointerData( timeStamp: Timer.timespanSinceStartup, change: PointerChange.down, kind: PointerDeviceKind.mouse, device: (int) eventData.button, physicalX: position.x, physicalY: position.y )); } public void OnPointerUp(PointerEventData eventData) { var position = this.getPointPosition(eventData); this._windowAdapter.postPointerEvent(new PointerData( timeStamp: Timer.timespanSinceStartup, change: PointerChange.up, kind: PointerDeviceKind.mouse, device: (int) eventData.button, physicalX: position.x, physicalY: position.y )); } public Vector2 getPointPosition(PointerEventData eventData) { Vector2 localPoint; RectTransformUtility.ScreenPointToLocalPointInRectangle(this.rectTransform, eventData.position, eventData.enterEventCamera, out localPoint); var pixelRatio = this.pixelRatio; localPoint.x = (float)((localPoint.x - this.rectTransform.rect.min.x) * pixelRatio); localPoint.y = (float)((this.rectTransform.rect.max.y - localPoint.y) * pixelRatio); return localPoint; } public Vector2 getPointPosition(Vector2 position) { Vector2 localPoint; Camera eventCamera = null; if (this.canvas.renderMode != RenderMode.ScreenSpaceCamera) { eventCamera = this.canvas.GetComponent().eventCamera; } RectTransformUtility.ScreenPointToLocalPointInRectangle(this.rectTransform, position, eventCamera, out localPoint); localPoint.x = (float)((localPoint.x - this.rectTransform.rect.min.x) * this.pixelRatio); localPoint.y = (float)((this.rectTransform.rect.max.y - localPoint.y) * this.pixelRatio); return localPoint; } public void OnDrag(PointerEventData eventData) { var position = this.getPointPosition(eventData); this._windowAdapter.postPointerEvent(new PointerData( timeStamp: Timer.timespanSinceStartup, change: PointerChange.move, kind: PointerDeviceKind.mouse, device: (int) eventData.button, physicalX: position.x, physicalY: position.y )); } public void OnPointerEnter(PointerEventData eventData) { this._mouseEntered = true; this._lastMouseMove = eventData.position; var position = this.getPointPosition(eventData); this._windowAdapter.postPointerEvent(new PointerData( timeStamp: Timer.timespanSinceStartup, change: PointerChange.hover, kind: PointerDeviceKind.mouse, device: (int) eventData.button, physicalX: position.x, physicalY: position.y )); } public void OnPointerExit(PointerEventData eventData) { this._mouseEntered = false; var position = this.getPointPosition(eventData); this._windowAdapter.postPointerEvent(new PointerData( timeStamp: Timer.timespanSinceStartup, change: PointerChange.hover, kind: PointerDeviceKind.mouse, device: (int) eventData.button, physicalX: position.x, physicalY: position.y )); } void unfocusIfNeeded() { using (this._windowAdapter.getScope()) { var focusNode = WidgetsBinding.instance.focusManager.currentFocus; if (focusNode != null) { focusNode.unfocus(); } } } } }