14 files changed, 815 insertions, 595 deletions

diff --git a/js/controllers/document-controller.js b/js/controllers/document-controller.js
index 194496a6..a8056519 100755
--- a/js/controllers/document-controller.js
+++ b/js/controllers/document-controller.js
@@ -336,14 +336,23 @@ var DocumentController = exports.DocumentController = Montage.create(Component,
                     nextDocumentIndex = closeDocumentIndex - 1;
                 }
                 this.application.ninja.stage.stageView.switchDocument(this._documents[nextDocumentIndex]);
+                if(typeof this.activeDocument.stopVideos !== "undefined"){doc.stopVideos();}
                 this._removeDocumentView(doc.container);
             }else if(this._documents.length === 0){
+                if(typeof this.activeDocument.pauseAndStopVideos !== "undefined"){
+                    this.activeDocument.pauseAndStopVideos();
+                }
                 this.activeDocument = null;
                 this._removeDocumentView(doc.container);
                 this.application.ninja.stage.stageView.hideRulers();
                 document.getElementById("iframeContainer").style.display="block";
 
                 this.application.ninja.stage.hideCanvas(true);
+            }else{//closing inactive document tab - just clear DOM
+                if(typeof doc.pauseAndStopVideos !== "undefined"){
+                    doc.pauseAndStopVideos();
+                }
+                this._removeDocumentView(doc.container);
             }
 
             NJevent("closeDocument", doc.uri);
diff --git a/js/document/html-document.js b/js/document/html-document.js
index b9b68972..23b55e92 100755
--- a/js/document/html-document.js
+++ b/js/document/html-document.js
@@ -842,6 +842,9 @@ exports.HTMLDocument = Montage.create(TextDocument, {
             this.undoStack = this.application.ninja.undocontroller.undoQueue.slice(0);
             this.redoStack = this.application.ninja.undocontroller.redoQueue.slice(0);
             this.application.ninja.undocontroller.clearHistory();//clear history to give the next document a fresh start
+
+            //pause videos on switching or closing the document, so that the browser does not keep downloading the media data
+            this.pauseVideos();
         }
     },
 
@@ -870,6 +873,44 @@ exports.HTMLDocument = Montage.create(TextDocument, {
 
 
         }
-    }
+    },
         ////////////////////////////////////////////////////////////////////
+    /**
+     *pause videos on switching or closing the document, so that the browser does not keep downloading the media data
+    */
+    pauseVideos:{
+        value:function(){
+            var videosArr = this.documentRoot.getElementsByTagName("video"), i=0;
+            for(i=0;i<videosArr.length;i++){
+                if(!videosArr[i].paused){
+                    videosArr[i].pause();
+                }
+            }
+        }
+    },
+
+    /**
+     * remove the video src on closing the document, so that the browser does not keep downloading the media data, if the tag does not get garbage collected
+     *removeSrc : boolean to remove the src if the video... set only in the close document flow
+    */
+    stopVideos:{
+        value:function(){
+            var videosArr = this.documentRoot.getElementsByTagName("video"), i=0;
+            for(i=0;i<videosArr.length;i++){
+                videosArr[i].src = "";
+            }
+        }
+    },
+    pauseAndStopVideos:{
+        value:function(){
+            var videosArr = this.documentRoot.getElementsByTagName("video"), i=0;
+            for(i=0;i<videosArr.length;i++){
+                if(!videosArr[i].paused){
+                    videosArr[i].pause();
+                }
+                videosArr[i].src = "";
+            }
+        }
+    }
+    ////////////////////////////////////////////////////////////////////
 });
\ No newline at end of file
diff --git a/js/helper-classes/3D/draw-utils.js b/js/helper-classes/3D/draw-utils.js
index 02d946ae..63e7799a 100755
--- a/js/helper-classes/3D/draw-utils.js
+++ b/js/helper-classes/3D/draw-utils.js
@@ -112,6 +112,7 @@ var DrawUtils = exports.DrawUtils = Montage.create(Component, {
             this.eventManager.addEventListener("elementDeleted", this, false);
             this.eventManager.addEventListener("deleteSelection", this, false);
             this.eventManager.addEventListener("elementChange", this, false);
+            this.eventManager.addEventListener("closeDocument", this, false);
                 }
         },
 
@@ -135,6 +136,15 @@ var DrawUtils = exports.DrawUtils = Montage.create(Component, {
         }
     },
 
+    handleCloseDocument:{
+        value: function() {
+            if(this.application.ninja.documentController._documents.length === 0){
+                this._eltArray = [];
+                this._planesArray = [];
+            }
+        }
+    },
+
     handleElementAdded: {
         value: function(event) {
             this.addElement(event.detail);
diff --git a/js/panels/Panel.reel/Panel.html b/js/panels/Panel.reel/Panel.html
index 04e2930a..43b87940 100755
--- a/js/panels/Panel.reel/Panel.html
+++ b/js/panels/Panel.reel/Panel.html
@@ -113,6 +113,21 @@
                 }
             },
 
+            "disabledCondition": {
+                "module": "montage/ui/condition.reel",
+                "name": "Condition",
+                "properties": {
+                    "element": {"#": "disabledCondition"}
+                },
+                "bindings": {
+                    "condition": {
+                        "boundObject": {"@": "owner"},
+                        "boundObjectPropertyPath": "disabled",
+                        "oneway": true
+                    }
+                }
+            },
+
             "owner": {
                 "module": "js/panels/Panel.reel",
                 "name": "Panel",
@@ -136,9 +151,8 @@
     </div>
     <div class="panelBody">
         <div class="panelBodyContent">
-            <div id="panelObject" class="panelObjects">
-
-            </div>
+            <div id="disabledCondition" class="panelDisabled"></div>
+            <div id="panelObject" class="panelObjects"></div>
         </div>
     </div>
     <div id="resizeBar" class="resizeBar"></div>
diff --git a/js/panels/Panel.reel/Panel.js b/js/panels/Panel.reel/Panel.js
index 2b308258..33f9b3a7 100755
--- a/js/panels/Panel.reel/Panel.js
+++ b/js/panels/Panel.reel/Panel.js
@@ -57,6 +57,10 @@ exports.Panel = Montage.create(Component, {
         value: null
     },
 
+    disabled: {
+        value:false
+    },
+
     collapsed: {
         get: function() {
             return this._collapsed;
diff --git a/js/panels/PanelContainer.reel/PanelContainer.js b/js/panels/PanelContainer.reel/PanelContainer.js
index dd720bd3..c40bbc21 100755
--- a/js/panels/PanelContainer.reel/PanelContainer.js
+++ b/js/panels/PanelContainer.reel/PanelContainer.js
@@ -47,6 +47,7 @@ exports.PanelContainer = Montage.create(Component, {
                 this['panel_'+i].flexible = p.flexible;
                 this['panel_'+i].modulePath = p.modulePath;
                 this['panel_'+i].moduleName = p.moduleName;
+                this['panel_'+i].disabled = true;
 
                 this.currentPanelState[p.name] = {};
                 this.currentPanelState.version = "1.0";
@@ -64,6 +65,8 @@ exports.PanelContainer = Montage.create(Component, {
             this.application.localStorage.setItem("panels", this.currentPanelState);
 
 
+            this.eventManager.addEventListener( "onOpenDocument", this, false);
+            this.eventManager.addEventListener( "closeDocument", this, false);
         }
     },
  
@@ -81,7 +84,25 @@ exports.PanelContainer = Montage.create(Component, {