[PE] Fix Bug 35231.

apps/presentationeditor/main/app/view/Statusbar.js

@@ -107,6 +107,7 @@ define([
                 _.extend(this, options);
                 this.pages = new PE.Models.Pages({current:1, count:1});
                 this.pages.on('change', _.bind(_updatePagesCaption,this));
+                this._state = {no_paragraph: true};
             },
 
             render: function () {
@@ -354,6 +355,8 @@ define([
                     this.api.asc_registerCallback('asc_onAuthParticipantsChanged', _.bind(this.onApiUsersChanged, this));
                     this.api.asc_registerCallback('asc_onParticipantsChanged',     _.bind(this.onApiUsersChanged, this));
                     /** coauthoring end **/
+
+                    this.api.asc_registerCallback('asc_onFocusObject', _.bind(this.onApiFocusObject, this));
                 }
 
                 return this;
@@ -459,7 +462,7 @@ define([
 
                 this.langMenu.doLayout();
                 if (this.langMenu.items.length>0) {
-                    this.btnLanguage.setDisabled(false);
+                    this.btnLanguage.setDisabled(false || this._state.no_paragraph);
                     this.btnDocLanguage.setDisabled(false);
                 }
             },
@@ -483,10 +486,26 @@ define([
 
             SetDisabled: function(disable) {
                 var langs = this.langMenu.items.length>0;
-                this.btnLanguage.setDisabled(disable || !langs);
+                this.btnLanguage.setDisabled(disable || !langs || this._state.no_paragraph);
                 this.btnDocLanguage.setDisabled(disable || !langs);
             },
 
+            onApiFocusObject: function(selectedObjects) {
+                if (!this.mode.isEdit) return;
+
+                this._state.no_paragraph = true;
+                var i = -1;
+                while (++i < selectedObjects.length) {
+                    if (selectedObjects[i].get_ObjectType() == Asc.c_oAscTypeSelectElement.Paragraph) {
+                        this._state.no_paragraph = selectedObjects[i].get_ObjectValue().get_Locked();
+                        break;
+                    }
+                }
+                this._state.no_paragraph = this._state.no_paragraph || this.langMenu.items.length<1;
+                if (this._state.no_paragraph !== this.btnLanguage.isDisabled())
+                    this.btnLanguage.setDisabled(this._state.no_paragraph);
+            },
+
             pageIndexText   : 'Slide {0} of {1}',
             goToPageText    : 'Go to Slide',
             tipUsers        : 'Document is currently being edited by several users.',