Introduced a separate stage.fullScreenScaleMode property that is used to decide scaling when fullscreen.

Author: j-adams-19

examples/display/fullscreen.js

@@ -13,6 +13,13 @@ function create() {
 
     game.stage.backgroundColor = '#e3ed49';
 
+    // Stretch to fill
+//    game.stage.fullScreenScaleMode = Phaser.StageScaleMode.EXACT_FIT;
+    // Keep original size
+//    game.stage.fullScreenScaleMode = Phaser.StageScaleMode.NO_SCALE;
+    // Maintain aspect ratio
+    game.stage.fullScreenScaleMode = Phaser.StageScaleMode.NO_SCALE;
+
     game.input.onDown.add(gofull, this);
 
 }

src/core/Stage.js

@@ -52,6 +52,11 @@ Phaser.Stage = function (game, width, height) {
     */
     this.scaleMode = Phaser.StageScaleMode.NO_SCALE;
 
+    /*
+    * @property {number} fullScreenScaleMode - Scale mode to be used in fullScreen
+     */
+    this.fullScreenScaleMode = Phaser.StageScaleMode.NO_SCALE;
+
     /**
     * @property {Phaser.StageScaleMode} scale - The scale of the current running game.
     */

src/system/StageScaleMode.js

@@ -310,16 +310,25 @@ Phaser.StageScaleMode.prototype = {
 
         if (this.isFullScreen)
         {
-            this.game.stage.canvas.style['width'] = '100%';
-            this.game.stage.canvas.style['height'] = '100%';
+            if (this.game.stage.fullScreenScaleMode === Phaser.StageScaleMode.EXACT_FIT)
+            {
+                this.game.stage.canvas.style['width'] = '100%';
+                this.game.stage.canvas.style['height'] = '100%';
 
-            this.setMaximum();
+                this.setMaximum();
 
-            this.game.input.scale.setTo(this.game.width / this.width, this.game.height / this.height);
+                this.game.input.scale.setTo(this.game.width / this.width, this.game.height / this.height);
+
+                this.aspectRatio = this.width / this.height;
+                this.scaleFactor.x = this.game.width / this.width;
+                this.scaleFactor.y = this.game.height / this.height;
+            }
+            else if (this.game.stage.fullScreenScaleMode === Phaser.StageScaleMode.SHOW_ALL)
+            {
+                this.game.stage.scale.setShowAll();
+                this.game.stage.scale.refresh();
+            }
 
-            this.aspectRatio = this.width / this.height;
-            this.scaleFactor.x = this.game.width / this.width;
-            this.scaleFactor.y = this.game.height / this.height;
         }
         else
         {
@@ -560,13 +569,27 @@ Phaser.StageScaleMode.prototype = {
             {
                 this.setMaximum();
             }
-            else if (this.game.stage.scaleMode == Phaser.StageScaleMode.EXACT_FIT)
+            else if (!this.isFullScreen)
             {
-                this.setExactFit();
+                if (this.game.stage.scaleMode == Phaser.StageScaleMode.EXACT_FIT)
+                {
+                    this.setExactFit();
+                }
+                else if (this.game.stage.scaleMode == Phaser.StageScaleMode.SHOW_ALL)
+                {
+                    this.setShowAll();
+                }
             }
-            else if (this.game.stage.scaleMode == Phaser.StageScaleMode.SHOW_ALL)
+            else
             {
-                this.setShowAll();
+                if (this.game.stage.fullScreenScaleMode == Phaser.StageScaleMode.EXACT_FIT)
+                {
+                    this.setExactFit();
+                }
+                else if (this.game.stage.fullScreenScaleMode == Phaser.StageScaleMode.SHOW_ALL)
+                {
+                    this.setShowAll();
+                }
             }
 
             this.setSize();