Bug 98595 Ability to disable lists, trees completely

patch by ajvincent@gmail.com r=mconnor sr=neil

toolkit/content/widgets/tree.xml

@@ -628,6 +628,8 @@
            click, so that drags work correctly. -->
       <handler event="mousedown" clickcount="1">
       <![CDATA[
+         if (this.parentNode.disabled)
+           return;
          if (((!this._isAccelPressed(event) ||
              !this.parentNode.pageUpOrDownMovesSelection) &&
              !event.shiftKey && !event.metaKey) ||
@@ -674,6 +676,8 @@
            except this item. -->
       <handler event="click" button="0" clickcount="1">
       <![CDATA[
+        if (this.parentNode.disabled)
+          return;
         var row = {};
         var col = {};
         var obj = {};
@@ -732,6 +736,8 @@
       <!-- double-click -->
       <handler event="click" clickcount="2">
       <![CDATA[
+        if (this.parentNode.disabled)
+          return;
         var b = this.parentNode.treeBoxObject;
         var row = b.view.selection.currentIndex;
         if (row == -1 || !b.view.isContainer(row))

xpfe/global/resources/content/bindings/tree.xml

@@ -600,6 +600,8 @@
            click, so that drags work correctly. -->
       <handler event="mousedown" clickcount="1">
       <![CDATA[
+         if (this.parentNode.disabled)
+           return;
          if (((!event.ctrlKey || !this.parentNode.pageUpOrDownMovesSelection) &&
              !event.shiftKey && !event.metaKey) ||
              this.parentNode.view.selection.single) {
@@ -645,6 +647,8 @@
            except this item. -->
       <handler event="click" button="0" clickcount="1">
       <![CDATA[
+        if (this.parentNode.disabled)
+          return;
         var row = {};
         var col = {};
         var obj = {};
@@ -703,6 +707,8 @@
       <!-- double-click -->
       <handler event="click" clickcount="2">
       <![CDATA[
+        if (this.parentNode.disabled)
+          return;
         var b = this.parentNode.treeBoxObject;
         var row = b.view.selection.currentIndex;
         if (row == -1 || !b.view.isContainer(row))