[gnome-documents] categories: don't emit active-category-changed with the same category

[Cosimo Cecchi <cosimoc src gnome org>]

commit d00ff364ad342932bba9cbe2ff026947a1b780a7
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Thu Sep 29 18:22:24 2011 -0400

    categories: don't emit active-category-changed with the same category
    
    If we are set the same active category, don't emit a changed signal to
    refresh the views.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=660506

 src/categories.js |   10 +++++++---
 1 files changed, 7 insertions(+), 3 deletions(-)
---
diff --git a/src/categories.js b/src/categories.js
index 7f01662..b30296a 100644
--- a/src/categories.js
+++ b/src/categories.js
@@ -91,11 +91,15 @@ CategoryManager.prototype = {
     },
 
     setActiveCategoryId: function(id) {
-        if (!this._categories[id])
+        let category = this._categories[id];
+
+        if (!category)
             return;
 
-        this.activeCategory = this._categories[id];
-        this.emit('active-category-changed');
+        if (category != this.activeCategory) {
+            this.activeCategory = category;
+            this.emit('active-category-changed');
+        }
     },
 
     getActiveCategoryId: function() {