Automatically add scrollbars when moving content to negative space.

Signed-off-by: Nivesh Rajbhandari <mqg734@motorola.com>

2 files changed, 64 insertions, 8 deletions

diff --git a/js/helper-classes/3D/draw-utils.js b/js/helper-classes/3D/draw-utils.js
index b53ac4ad..b268b8f0 100755
--- a/js/helper-classes/3D/draw-utils.js
+++ b/js/helper-classes/3D/draw-utils.js
@@ -245,16 +245,45 @@ var DrawUtils = exports.DrawUtils = Montage.create(Component, {
             }
             var els = event.detail.data.els;
             if(els && this._shouldUpdatePlanes(event.detail.data.prop)) {
-                var len = els.length;
+                var len = els.length,
+                    stage = this.application.ninja.stage,
+                    minLeft = stage.userPaddingLeft,
+                    minTop = stage.userPaddingTop,
+                    docLeft = stage.documentOffsetLeft,
+                    docTop = stage.documentOffsetTop,
+                    l,
+                    t,
+                    plane,
+                    changed = false;
                 for(var i=0; i < len; i++) {
-                    if(els[i].elementModel.props3D.elementPlane) {
-                        els[i].elementModel.props3D.elementPlane.init();
+                    plane = els[i].elementModel.props3D.elementPlane;
+                    if(plane) {
+                        plane.init();
+                        l = plane._rect.m_left - docLeft;
+                        t = plane._rect.m_top - docTop;
+                        if(l < minLeft) {
+                            minLeft = l;
+                        }
+                        if(t < minTop) {
+                            minTop = t;
+                        }
                     }
                 }
 
-                this.application.ninja.stage.layout.draw();
-                this.drawWorkingPlane();
-                this.draw3DCompass();
+                if(minLeft !== stage.userPaddingLeft) {
+                    stage.userPaddingLeft = minLeft;
+                    changed = true;
+                }
+                if(minTop !== stage.userPaddingTop) {
+                    stage.userPaddingTop = minTop;
+                    changed = true;
+                }
+
+                if(!changed) {
+                    stage.layout.draw();
+                    this.drawWorkingPlane();
+                    this.draw3DCompass();
+                }
             }
         }
     },
diff --git a/js/stage/stage.reel/stage.js b/js/stage/stage.reel/stage.js
index 125155d8..05376527 100755
--- a/js/stage/stage.reel/stage.js
+++ b/js/stage/stage.reel/stage.js
@@ -187,6 +187,33 @@ exports.Stage = Montage.create(Component, {
         enumerable : false
     },
 
+    _userPaddingLeft: { value: 0 },
+    _userPaddingTop: { value: 0 },
+
+    userPaddingLeft: {
+        get: function() { return this._userPaddingLeft; },
+        set: function(value) {
+            this._userPaddingLeft = value;
+            this._documentOffsetLeft = -value;
+            this.application.ninja.stylesController.setElementStyle(this._documentRoot.ownerDocument.getElementsByTagName("HTML")[0],
+                                                                    "padding-left", -value + "px", true);
+            this.userContentLeft = this._documentOffsetLeft;
+            this.updatedStage = true;
+        }
+    },
+
+    userPaddingTop: {
+        get: function() { return this._userPaddingTop; },
+        set: function(value) {
+            this._userPaddingTop = value;
+            this._documentOffsetTop = -value;
+            this.application.ninja.stylesController.setElementStyle(this._documentRoot.ownerDocument.getElementsByTagName("HTML")[0],
+                                                                    "padding-top", -value + "px", true);
+            this.userContentTop = this._documentOffsetTop;
+            this.updatedStage = true;
+        }
+    },
+
     willDraw: {
         value: function() {
             if(this.resizeCanvases) {
@@ -490,8 +517,8 @@ exports.Stage = Montage.create(Component, {
                 this._scrollLeft = this.application.ninja.currentDocument.model.views.design.document.body.scrollLeft;
                 this._scrollTop = this.application.ninja.currentDocument.model.views.design.document.body.scrollTop;
 
-                this.userContentLeft = -this._scrollLeft;
-                this.userContentTop = -this._scrollTop;
+                this.userContentLeft = this._documentOffsetLeft - this._scrollLeft;
+                this.userContentTop = this._documentOffsetTop - this._scrollTop;
 
                 // TODO - scroll events are not dependable.  We may need to use a timer to simulate
                 // scrollBegin and scrollEnd. For now, the Pan Tool will keep track of the stage's scroll values