修复html视图不能滚动的限制

manifest.json

-{"id":"engine","url":"engine.85a610a71df748fd9a6ece34f456a06e8f3f1b63.js"}
+{"id":"engine","url":"engine.47eb390007c368d3dc5648734153301ebead724b.js"}
\ No newline at end of file

src/2d/display/FloatDisplay.ts

@@ -83,7 +83,20 @@ export class FloatDisplay extends DisplayObject {
 			}
 		});
 		s.addEventListener(Event.ADDED_TO_STAGE, function (e: Event) {
-			if(!container){
+			this.addHtmlElement();
+		}, s);
+
+		this._transformID = -1;
+	}
+
+	addHtmlElement() {
+		let s = this;
+
+		if(!s.stage){
+			return;
+		}
+
+		if (!container) {
 			container = document.createElement('div');
 			container.style.position = "absolute";
 			container.style.left = "0";
@@ -104,9 +117,6 @@ export class FloatDisplay extends DisplayObject {
 				}
 			}
 		}
-		});
-
-		this._transformID = -1;
 	}
 
 	get htmlElement() {
@@ -126,7 +136,7 @@ export class FloatDisplay extends DisplayObject {
 	 * @param {HtmlElement} htmlElement 需要封装起来的html元素的引用。你可以通过这个引用来调用或设置此元素自身的属性方法和事件,甚至是样式
 	 */
 	protected init(htmlElement: any): void {
-		if(!htmlElement){
+		if (!htmlElement) {
 			return;
 		}
 		let s = this;
@@ -160,6 +170,8 @@ export class FloatDisplay extends DisplayObject {
 		s._localBoundsSelf.width = w;
 		s._localBoundsSelf.height = h;
 		s._htmlElement = she;
+
+		this.addHtmlElement();
 	}
 
 	/**

src/2d/display/Stage.ts

@@ -438,7 +438,7 @@ export class Stage extends Container {
 			s.dispatchEvent(Event.ON_INIT_STAGE);
 			// }
 		}, 100);
-		let rc = canvas;//s.rootDiv;
+		let rc = s.rootDiv;//canvas
 		let mouseEvent = s.onMouseEvent.bind(s);
 		//鼠标事件
 		if (osType != "pc") {
@@ -648,8 +648,9 @@ export class Stage extends Container {
 					cp = new Point();
 				}
 
+				let rootDiv = s.rootDiv;
 				let doc = document.documentElement;
-				let box = points[o].target.getBoundingClientRect();
+				let box = rootDiv.getBoundingClientRect();//points[o].target
 				let left = box.left + window.pageXOffset - doc.clientLeft;
 				let top = box.top + window.pageYOffset - doc.clientTop;
 				cp.x = (points[o].pageX - left) * devicePixelRatio;