Add unstable flags for the list editing feature

Author: Satvik Kumar

programs/editor/wodocollabtexteditor.js

@@ -177,7 +177,7 @@ var Wodo = Wodo || (function () {
             paragraphStyleEditingEnabled = isEnabled(editorOptions.paragraphStyleEditingEnabled),
             imageEditingEnabled = isEnabled(editorOptions.imageEditingEnabled, true),
             hyperlinkEditingEnabled = isEnabled(editorOptions.hyperlinkEditingEnabled, true),
-            listEditingEnabled = isEnabled(editorOptions.listEditingEnabled),
+            listEditingEnabled = isEnabled(editorOptions.listEditingEnabled, true),
             reviewModeEnabled = isEnabled(editorOptions.reviewModeEnabled, true),
             annotationsEnabled = reviewModeEnabled || isEnabled(editorOptions.annotationsEnabled, true),
             undoRedoEnabled = false, // no proper mechanism yet for collab

programs/editor/wodotexteditor.js

@@ -233,12 +233,16 @@ var Wodo = Wodo || (function () {
         instanceCounter = instanceCounter + 1;
 
         /**
-        * Returns true if either all features are wanted and this one is not explicitely disabled
-        * or if not all features are wanted by default and it is explicitely enabled
-        * @param {?boolean|undefined} isFeatureEnabled explicit flag which enables a feature
-        * @return {!boolean}
-        */
-        function isEnabled(isFeatureEnabled) {
+         * Returns true if either all features are wanted and this one is not explicitely disabled
+         * or if not all features are wanted by default and it is explicitely enabled
+         * @param {?boolean|undefined} isFeatureEnabled explicit flag which enables a feature
+         * @param {!boolean=} isUnstable set to true if the feature is not stable (in collab mode)
+         * @return {!boolean}
+         */
+        function isEnabled(isFeatureEnabled, isUnstable) {
+            if (isUnstable && ! editorOptions.unstableFeaturesEnabled) {
+                return false;
+            }
             return editorOptions.allFeaturesEnabled ? (isFeatureEnabled !== false) : isFeatureEnabled;
         }
 
@@ -283,7 +287,7 @@ var Wodo = Wodo || (function () {
             paragraphStyleEditingEnabled = isEnabled(editorOptions.paragraphStyleEditingEnabled),
             imageEditingEnabled = isEnabled(editorOptions.imageEditingEnabled),
             hyperlinkEditingEnabled = isEnabled(editorOptions.hyperlinkEditingEnabled),
-            listEditingEnabled = isEnabled(editorOptions.listEditingEnabled),
+            listEditingEnabled = isEnabled(editorOptions.listEditingEnabled, true),
             reviewModeEnabled = Boolean(editorOptions.reviewModeEnabled), // needs to be explicitly enabled
             annotationsEnabled = reviewModeEnabled || isEnabled(editorOptions.annotationsEnabled),
             undoRedoEnabled = isEnabled(editorOptions.undoRedoEnabled),