Bug 877149 - use skipArrange param to the richgrid mutators where possibe to reduce the number of arrangeItems calls. r=mbrubeck

browser/metro/base/content/bindings/autocomplete.xml

@@ -268,7 +268,7 @@
             for (let i = 0; i < iterCount; i++) {
               if (i > lastMatch) {
                 let lastItem = this._results.itemCount - 1;
-                this._results.removeItemAt(lastItem);
+                this._results.removeItemAt(lastItem, true);
                 continue;
               }
 
@@ -278,7 +278,7 @@
 
               let item = this._results.getItemAtIndex(i);
               if (item == null) {
-                item = this._results.appendItem(label, value);
+                item = this._results.appendItem(label, value, true);
                 item.setAttribute("autocomplete", "true");
               } else {
                 item.setAttribute("label", label);
@@ -308,10 +308,10 @@
             this._engines = Services.search.getVisibleEngines();
 
             while (this._searches.itemCount > 0)
-              this._searches.removeItemAt(0);
+              this._searches.removeItemAt(0, true);
 
             this._engines.forEach(function (anEngine) {
-              let item = this._searches.appendItem(anEngine.name, anEngine.name);
+              let item = this._searches.appendItem(anEngine.name, anEngine.name, true);
               item.setAttribute("autocomplete", "true");
               item.setAttribute("search", "true");
 
@@ -336,9 +336,8 @@
             for (let i = 0, len = this._searches.itemCount; i < len; i++) {
               let item = this._searches.getItemAtIndex(i);
               item.setAttribute("label", label);
+              item.refresh && item.refresh();
             }
-
-            this._searches.arrangeItems();
           ]]>
         </body>
       </method>

browser/metro/base/content/bookmarks.js

@@ -77,6 +77,7 @@ var Bookmarks = {
 function BookmarksView(aSet, aLimit, aRoot, aFilterUnpinned) {
   this._set = aSet;
   this._set.controller = this;
+  this._inBatch = false; // batch up grid updates to avoid redundant arrangeItems calls
 
   this._limit = aLimit;
   this._filterUnpinned = aFilterUnpinned;
@@ -152,6 +153,8 @@ BookmarksView.prototype = {
     rootNode.containerOpen = true;
     let childCount = rootNode.childCount;
 
+    this._inBatch = true; // batch up grid updates to avoid redundant arrangeItems calls
+
     for (let i = 0, addedCount = 0; i < childCount && addedCount < limit; i++) {
       let node = rootNode.getChild(i);
 
@@ -188,9 +191,10 @@ BookmarksView.prototype = {
     // This can happen when undoing a delete.
     if (aRefresh) {
       while (this._set.itemCount > limit)
-        this._set.removeItemAt(this._set.itemCount - 1);
+        this._set.removeItemAt(this._set.itemCount - 1, true);
     }
-
+    this._set.arrangeItems();
+    this._inBatch = false;
     rootNode.containerOpen = false;
   },
 
@@ -203,14 +207,15 @@ BookmarksView.prototype = {
 
   clearBookmarks: function bv_clearBookmarks() {
     while (this._set.itemCount > 0)
-      this._set.removeItemAt(0);
+      this._set.removeItemAt(0, true);
+    this._set.arrangeItems();
   },
 
   addBookmark: function bv_addBookmark(aBookmarkId, aPos) {
     let index = this._bookmarkService.getItemIndex(aBookmarkId);
     let uri = this._bookmarkService.getBookmarkURI(aBookmarkId);
     let title = this._bookmarkService.getItemTitle(aBookmarkId) || uri.spec;
-    let item = this._set.insertItemAt(aPos || index, title, uri.spec);
+    let item = this._set.insertItemAt(aPos || index, title, uri.spec, this._inBatch);
     item.setAttribute("bookmarkId", aBookmarkId);
     this._setContextActions(item);
     this._updateFavicon(aBookmarkId, item, uri);
@@ -274,7 +279,7 @@ BookmarksView.prototype = {
   removeBookmark: function bv_removeBookmark(aBookmarkId) {
     let item = this._getItemForBookmarkId(aBookmarkId);
     let index = this._set.getIndexOfItem(item);
-    this._set.removeItemAt(index);
+    this._set.removeItemAt(index, this._inBatch);
   },
 
   destruct: function bv_destruct() {

browser/metro/base/content/history.js

@@ -7,7 +7,7 @@
 function HistoryView(aSet, aLimit, aFilterUnpinned) {
   this._set = aSet;
   this._set.controller = this;
-  this._inBatch = false;
+  this._inBatch = 0;
 
   this._limit = aLimit;
   this._filterUnpinned = aFilterUnpinned;
@@ -30,6 +30,7 @@ HistoryView.prototype = {
   },
 
   populateGrid: function populateGrid(aRefresh) {
+    this._inBatch++; // always batch up grid updates to avoid redundant arrangeItems calls
     let query = this._navHistoryService.getNewQuery();
     let options = this._navHistoryService.getNewQueryOptions();
     options.excludeQueries = true;
@@ -83,6 +84,9 @@ HistoryView.prototype = {
     }
 
     rootNode.containerOpen = false;
+    this._set.arrangeItems();
+    if (this._inBatch > 0)
+      this._inBatch--;
   },
 
   destruct: function destruct() {
@@ -113,7 +117,9 @@ HistoryView.prototype = {
   removeHistory: function (aUri) {
     let items = this._set.getItemsByUrl(aUri);
     for (let item of items)
-      this._set.removeItem(item, this._inBatch);
+      this._set.removeItem(item, true);
+    if (!this._inBatch)
+      this._set.arrangeItems();
   },
 
   doActionOnSelectedTiles: function bv_doActionOnSelectedTiles(aActionName, aEvent) {
@@ -207,12 +213,15 @@ HistoryView.prototype = {
 
   onBeginUpdateBatch: function() {
     // Avoid heavy grid redraws while a batch is in process
-    this._inBatch = true;
+    this._inBatch++;
   },
 
   onEndUpdateBatch: function() {
-    this._inBatch = false;
     this.populateGrid(true);
+    if (this._inBatch > 0) {
+      this._inBatch--;
+      this._set.arrangeItems();
+    }
   },
 
   onVisit: function(aURI, aVisitID, aTime, aSessionID,