fix some stage evetns. close #627

src/Node.ts

@@ -2076,9 +2076,10 @@ export abstract class Node<Config extends NodeConfig = NodeConfig> {
 
     var shouldStop =
       (eventType === MOUSEENTER || eventType === MOUSELEAVE) &&
-      compareShape &&
-      (this._id === compareShape._id ||
-        (this.isAncestorOf && this.isAncestorOf(compareShape)));
+      ((compareShape &&
+        (this === compareShape ||
+          (this.isAncestorOf && this.isAncestorOf(compareShape)))) ||
+        (this.nodeType === 'Stage' && !compareShape));
 
     if (!shouldStop) {
       this._fire(eventType, evt);

src/Stage.ts

@@ -55,6 +55,7 @@ var STAGE = 'Stage',
   MAX_LAYERS_NUMBER = 5,
   EMPTY_STRING = '',
   EVENTS = [
+    MOUSEENTER,
     MOUSEDOWN,
     MOUSEMOVE,
     MOUSEUP,
@@ -287,7 +288,7 @@ export class Stage extends Container {
    * // or if you interested in shape parent:
    * var group = stage.getIntersection({x: 50, y: 50}, 'Group');
    */
-  getIntersection(pos: Vector2d, selector?: string) {
+  getIntersection(pos: Vector2d, selector?: string): Shape | null {
     var layers = this.children,
       len = layers.length,
       end = len - 1,
@@ -378,6 +379,10 @@ export class Stage extends Container {
       addEvent(this, EVENTS[n]);
     }
   }
+  _mouseenter(evt) {
+    this.setPointersPositions(evt);
+    this._fire(MOUSEENTER, { evt: evt, target: this, currentTarget: this });
+  }
   _mouseover(evt) {
     this.setPointersPositions(evt);
     this._fire(CONTENT_MOUSEOVER, { evt: evt });
@@ -391,6 +396,17 @@ export class Stage extends Container {
       targetShape._fireAndBubble(MOUSEOUT, { evt: evt });
       targetShape._fireAndBubble(MOUSELEAVE, { evt: evt });
       this.targetShape = null;
+    } else if (!DD.isDragging) {
+      this._fire(MOUSELEAVE, {
+        evt: evt,
+        target: this,
+        currentTarget: this
+      });
+      this._fire(MOUSEOUT, {
+        evt: evt,
+        target: this,
+        currentTarget: this
+      });
     }
     this.pointerPos = undefined;
 
@@ -402,7 +418,7 @@ export class Stage extends Container {
       return this._touchmove(evt);
     }
     this.setPointersPositions(evt);
-    var shape;
+    var shape: Shape;
 
     if (!DD.isDragging) {
       shape = this.getIntersection(this.getPointerPosition());