Pointer.dirty is a new boolean that is set by the InputHandler. It tells the Pointer to re-check all interactive objects it may be over on the next update, regardless if it has moved position or not. This helps solve issues where you may have a Button that on click generates a pop-up window that now obscures the Button (thanks @jflowers45 phaserjs#882)

Author: photonstorm

README.md

@@ -92,6 +92,7 @@ Version 2.1.0 - "Cairhien" - -in development-
 * Device.node and Device.nodeWebKit are two new properties (thanks @videlais #1129)
 * P2.PointProxy.mx and my values are get and set in meters with no pixel conversion taking place.
 * P2.InversePointProxy.mx and my values are get and set in meters with no pixel conversion taking place.
+* Pointer.dirty is a new boolean that is set by the InputHandler. It tells the Pointer to re-check all interactive objects it may be over on the next update, regardless if it has moved position or not. This helps solve issues where you may have a Button that on click generates a pop-up window that now obscures the Button (thanks @jflowers45 #882)
 
 ### Updates
 

src/input/InputHandler.js

@@ -832,7 +832,7 @@ Phaser.InputHandler.prototype = {
             return;
         }
 
-        if (this._pointerData[pointer.id].isOver === false)
+        if (this._pointerData[pointer.id].isOver === false || pointer.dirty)
         {
             this._pointerData[pointer.id].isOver = true;
             this._pointerData[pointer.id].isOut = false;
@@ -915,6 +915,9 @@ Phaser.InputHandler.prototype = {
                 this.sprite.events.onInputDown.dispatch(this.sprite, pointer);
             }
 
+            //  It's possible the onInputDown event created a new Sprite that is on-top of this one, so we ought to force a Pointer update
+            pointer.dirty = true;
+
             //  Start drag
             if (this.draggable && this.isDragged === false)
             {
@@ -979,6 +982,9 @@ Phaser.InputHandler.prototype = {
                 }
             }
 
+            //  It's possible the onInputUp event created a new Sprite that is on-top of this one, so we ought to force a Pointer update
+            pointer.dirty = true;
+
             //  Stop drag
             if (this.draggable && this.isDragged && this._draggedPointerID === pointer.id)
             {

src/input/Pointer.js

@@ -217,6 +217,12 @@ Phaser.Pointer = function (game, id) {
     */
     this.active = false;
 
+    /**
+    * @property {boolean} dirty - A dirty pointer needs to re-poll any interactive objects it may have been over, regardless if it has moved or not.
+    * @default
+    */
+    this.dirty = false;
+
     /**
     * @property {Phaser.Point} position - A Phaser.Point object containing the current x/y values of the pointer on the display.
     */
@@ -273,6 +279,7 @@ Phaser.Pointer.prototype = {
         this.withinGame = true;
         this.isDown = true;
         this.isUp = false;
+        this.dirty = false;
 
         //  Work out how long it has been since the last click
         this.msSinceLastClick = this.game.time.now - this.timeDown;
@@ -319,6 +326,17 @@ Phaser.Pointer.prototype = {
 
         if (this.active)
         {
+            //  Force a check?
+            if (this.dirty)
+            {
+                if (this.game.input.interactiveItems.total > 0)
+                {
+                    this.processInteractiveObjects(true);
+                }
+
+                this.dirty = false;
+            }
+
             if (this._holdSent === false && this.duration >= this.game.input.holdRate)
             {
                 if (this.game.input.multiInputOverride == Phaser.Input.MOUSE_OVERRIDES_TOUCH || this.game.input.multiInputOverride == Phaser.Input.MOUSE_TOUCH_COMBINE || (this.game.input.multiInputOverride == Phaser.Input.TOUCH_OVERRIDES_MOUSE && this.game.input.currentPointers === 0))
@@ -497,7 +515,6 @@ Phaser.Pointer.prototype = {
         while (currentNode !== null);
 
         //  Now we know the top-most item (if any) we can process it
-
         if (this._highestRenderObject === null)
         {
             //  The pointer isn't currently over anything, check if we've got a lingering previous target
@@ -666,6 +683,7 @@ Phaser.Pointer.prototype = {
 
         this.pointerId = null;
         this.identifier = null;
+        this.dirty = false;
         this.isDown = false;
         this.isUp = true;
         this.totalTouches = 0;