Implement icon attribute for menuitem

Source/core/page/CustomContextMenuProvider.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "core/page/CustomContextMenuProvider.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/ElementTraversal.h"
 #include "core/events/EventDispatcher.h"
@@ skipping 51 matching lines @@
     // Avoid separators at the start of any menu and submenu.
     if (!contextMenu.items().size())
         return;
 
     // Collapse all sequences of two or more adjacent separators in the menu or
     // any submenus to a single separator.
     ContextMenuItem lastItem = contextMenu.items().last();
     if (lastItem.type() == SeparatorType)
         return;
 
-    contextMenu.appendItem(ContextMenuItem(SeparatorType, ContextMenuItemCustomTagNoAction, String()));
+    contextMenu.appendItem(ContextMenuItem(SeparatorType, ContextMenuItemCustomTagNoAction, String(), String()));
 }
 
 void CustomContextMenuProvider::appendMenuItem(HTMLMenuItemElement* menuItem, ContextMenu& contextMenu)
 {
     // Avoid menuitems with no label.
     String labelString = menuItem->fastGetAttribute(labelAttr);
     if (labelString.isEmpty())
         return;
 
     m_menuItems.append(menuItem);
 
     bool enabled = !menuItem->fastHasAttribute(disabledAttr);
+    String icon = menuItem->fastGetAttribute(iconAttr);
+    if (!icon.isEmpty()) {
+        // To obtain the absolute URL of the icon when the attribute's value is not the empty string,
+        // the attribute's value must be resolved relative to the element.
+        KURL iconURL = KURL(menuItem->baseURI(), icon);
+        icon = iconURL.string();
+    }
     ContextMenuAction action = static_cast<ContextMenuAction>(ContextMenuItemBaseCustomTag + m_menuItems.size() - 1);
     if (equalIgnoringCase(menuItem->fastGetAttribute(typeAttr), "checkbox") || equalIgnoringCase(menuItem->fastGetAttribute(typeAttr), "radio"))
-        contextMenu.appendItem(ContextMenuItem(CheckableActionType, action, labelString, enabled, menuItem->fastHasAttribute(checkedAttr)));
+        contextMenu.appendItem(ContextMenuItem(CheckableActionType, action, labelString, icon, enabled, menuItem->fastHasAttribute(checkedAttr)));
     else
-        contextMenu.appendItem(ContextMenuItem(ActionType, action, labelString, enabled, false));
+        contextMenu.appendItem(ContextMenuItem(ActionType, action, labelString, icon, enabled, false));
 }
 
 void CustomContextMenuProvider::populateContextMenuItems(const HTMLMenuElement& menu, ContextMenu& contextMenu)
 {
     HTMLElement* nextElement = Traversal<HTMLElement>::firstWithin(menu);
     while (nextElement) {
         if (isHTMLHRElement(*nextElement)) {
             appendSeparator(contextMenu);
             nextElement = Traversal<HTMLElement>::next(*nextElement, &menu);
         } else if (isHTMLMenuElement(*nextElement)) {
             ContextMenu subMenu;
             String labelString = nextElement->fastGetAttribute(labelAttr);
             if (labelString.isNull()) {
                 appendSeparator(contextMenu);
                 populateContextMenuItems(*toHTMLMenuElement(nextElement), contextMenu);
                 appendSeparator(contextMenu);
             } else if (!labelString.isEmpty()) {
                 populateContextMenuItems(*toHTMLMenuElement(nextElement), subMenu);
-                contextMenu.appendItem(ContextMenuItem(SubmenuType, ContextMenuItemCustomTagNoAction, labelString, &subMenu));
+                contextMenu.appendItem(ContextMenuItem(SubmenuType, ContextMenuItemCustomTagNoAction, labelString, String(), &subMenu));
             }
             nextElement = Traversal<HTMLElement>::nextSibling(*nextElement);
         } else if (isHTMLMenuItemElement(*nextElement)) {
             appendMenuItem(toHTMLMenuItemElement(nextElement), contextMenu);
             if (ContextMenuItemBaseCustomTag + m_menuItems.size() >= ContextMenuItemLastCustomTag)
                 break;
             nextElement = Traversal<HTMLElement>::next(*nextElement, &menu);
         } else {
             nextElement = Traversal<HTMLElement>::next(*nextElement, &menu);
         }
     }
 
     // Remove separators at the end of the menu and any submenus.
     while (contextMenu.items().size() && contextMenu.items().last().type() == SeparatorType)
         contextMenu.removeLastItem();
 }
 
 HTMLElement* CustomContextMenuProvider::menuItemAt(unsigned menuId)
 {
     int itemIndex = menuId - ContextMenuItemBaseCustomTag;
     if (itemIndex < 0 || static_cast<unsigned long>(itemIndex) >= m_menuItems.size())
         return nullptr;
     return m_menuItems[itemIndex].get();
 }
 
 } // namespace blink