Bug 404536 - "Right click on Web page button should be ignored (don't show context menu on web form controls except textboxes)" [p=ehsan.akhgari@gmail.com (Ehsan Akhgari [ehsan]) r=Mano ui-r+a1.9=beltzner]

browser/base/content/nsContextMenu.js

@@ -362,7 +362,8 @@ nsContextMenu.prototype = {
   // Set various context menu attributes based on the state of the world.
   setTarget: function (aNode, aRangeParent, aRangeOffset) {
     const xulNS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
-    if (aNode.namespaceURI == xulNS) {
+    if (aNode.namespaceURI == xulNS ||
+        this.isTargetAFormControl(aNode)) {
       this.shouldDisplay = false;
       return;
     }
@@ -1093,6 +1094,18 @@ nsContextMenu.prototype = {
            "contextMenu.hasBGImage = " + this.hasBGImage + "\n";
   },
 
+  // Returns true if aNode is a from control (except text boxes).
+  // This is used to disable the context menu for form controls.
+  isTargetAFormControl: function(aNode) {
+    if (aNode instanceof HTMLInputElement)
+      return (aNode.type != "text" && aNode.type != "password");
+
+    return (aNode instanceof HTMLButtonElement) ||
+           (aNode instanceof HTMLSelectElement) ||
+           (aNode instanceof HTMLOptionElement) ||
+           (aNode instanceof HTMLOptGroupElement);
+  },
+
   isTargetATextBox: function(node) {
     if (node instanceof HTMLInputElement)
       return (node.type == "text" || node.type == "password")