Bug 851596 - Move ContextMenuHandler element detection utils into Utils. r=fyan

browser/metro/base/content/Util.js

@@ -152,6 +152,29 @@ let Util = {
       return null;
   },
 
+  isTextInput: function isTextInput(aElement) {
+    return ((aElement instanceof Ci.nsIDOMHTMLInputElement &&
+             aElement.mozIsTextField(false)) ||
+            aElement instanceof Ci.nsIDOMHTMLTextAreaElement);
+  },
+
+  isLink: function isLink(aElement) {
+    return ((aElement instanceof Ci.nsIDOMHTMLAnchorElement && aElement.href) ||
+            (aElement instanceof Ci.nsIDOMHTMLAreaElement && aElement.href) ||
+            aElement instanceof Ci.nsIDOMHTMLLinkElement ||
+            aElement.getAttributeNS(kXLinkNamespace, "type") == "simple");
+  },
+
+  isText: function isText(aElement) {
+    return (aElement instanceof Ci.nsIDOMHTMLParagraphElement ||
+            aElement instanceof Ci.nsIDOMHTMLDivElement ||
+            aElement instanceof Ci.nsIDOMHTMLLIElement ||
+            aElement instanceof Ci.nsIDOMHTMLPreElement ||
+            aElement instanceof Ci.nsIDOMHTMLHeadingElement ||
+            aElement instanceof Ci.nsIDOMHTMLTableCellElement ||
+            aElement instanceof Ci.nsIDOMHTMLBodyElement);
+  },
+
   /*
    * Rect and nsIDOMRect utilities
    */

browser/metro/base/content/contenthandlers/ContextMenuHandler.js

@@ -133,7 +133,7 @@ var ContextMenuHandler = {
    */
 
   _onSelectAll: function _onSelectAll() {
-    if (this._isTextInput(this._target)) {
+    if (Util.isTextInput(this._target)) {
       // select all text in the input control
       this._target.select();
     } else {
@@ -145,7 +145,7 @@ var ContextMenuHandler = {
 
   _onPaste: function _onPaste() {
     // paste text if this is an input control
-    if (this._isTextInput(this._target)) {
+    if (Util.isTextInput(this._target)) {
       let edit = this._target.QueryInterface(Ci.nsIDOMNSEditableElement);
       if (edit) {
         edit.editor.paste(Ci.nsIClipboard.kGlobalClipboard);
@@ -161,7 +161,7 @@ var ContextMenuHandler = {
   },
 
   _onCut: function _onCut() {
-    if (this._isTextInput(this._target)) {
+    if (Util.isTextInput(this._target)) {
       let edit = this._target.QueryInterface(Ci.nsIDOMNSEditableElement);
       if (edit) {
         edit.editor.cut();
@@ -173,7 +173,7 @@ var ContextMenuHandler = {
   },
 
   _onCopy: function _onCopy() {
-    if (this._isTextInput(this._target)) {
+    if (Util.isTextInput(this._target)) {
       let edit = this._target.QueryInterface(Ci.nsIDOMNSEditableElement);
       if (edit) {
         edit.editor.copy();
@@ -281,7 +281,7 @@ var ContextMenuHandler = {
     while (elem) {
       if (elem.nodeType == Ci.nsIDOMNode.ELEMENT_NODE) {
         // is the target a link or a descendant of a link?
-        if (this._isLink(elem)) {
+        if (Util.isLink(elem)) {
           // If this is an image that links to itself, don't include both link and
           // image otpions.
           if (imageUrl == this._getLinkURL(elem)) {
@@ -297,7 +297,7 @@ var ContextMenuHandler = {
           // mark as text so we can pickup on selection below
           isText = true;
           break;
-        } else if (this._isTextInput(elem)) {
+        } else if (Util.isTextInput(elem)) {
           let selectionStart = elem.selectionStart;
           let selectionEnd = elem.selectionEnd;
 
@@ -330,7 +330,7 @@ var ContextMenuHandler = {
             state.types.push("paste");
           }
           break;
-        } else if (this._isText(elem)) {
+        } else if (Util.isText(elem)) {
           isText = true;
         } else if (elem instanceof Ci.nsIDOMHTMLMediaElement ||
                    elem instanceof Ci.nsIDOMHTMLVideoElement) {
@@ -381,29 +381,6 @@ var ContextMenuHandler = {
     sendAsyncMessage("Content:ContextMenu", state);
   },
 
-  _isTextInput: function _isTextInput(element) {
-    return ((element instanceof Ci.nsIDOMHTMLInputElement &&
-             element.mozIsTextField(false)) ||
-            element instanceof Ci.nsIDOMHTMLTextAreaElement);
-  },
-
-  _isLink: function _isLink(element) {
-    return ((element instanceof Ci.nsIDOMHTMLAnchorElement && element.href) ||
-            (element instanceof Ci.nsIDOMHTMLAreaElement && element.href) ||
-            element instanceof Ci.nsIDOMHTMLLinkElement ||
-            element.getAttributeNS(kXLinkNamespace, "type") == "simple");
-  },
-
-  _isText: function _isText(element) {
-    return (element instanceof Ci.nsIDOMHTMLParagraphElement ||
-            element instanceof Ci.nsIDOMHTMLDivElement ||
-            element instanceof Ci.nsIDOMHTMLLIElement ||
-            element instanceof Ci.nsIDOMHTMLPreElement ||
-            element instanceof Ci.nsIDOMHTMLHeadingElement ||
-            element instanceof Ci.nsIDOMHTMLTableCellElement ||
-            element instanceof Ci.nsIDOMHTMLBodyElement);
-  },
-
   _getLinkURL: function ch_getLinkURL(aLink) {
     let href = aLink.href;
     if (href)