<webview>: Context menu API implementation CL.

chrome/browser/extensions/menu_manager.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_MENU_MANAGER_H_
 #define CHROME_BROWSER_EXTENSIONS_MENU_MANAGER_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 42 matching lines @@
 
     bool operator==(const Id& other) const;
     bool operator!=(const Id& other) const;
     bool operator<(const Id& other) const;
 
     bool incognito;
     std::string extension_id;
     // Only one of uid or string_uid will be defined.
     int uid;
     std::string string_uid;
+    int webview_instance_id;
   };
 
   // For context menus, these are the contexts where an item can appear.
   enum Context {
     ALL = 1,
     PAGE = 2,
     SELECTION = 4,
     LINK = 8,
     EDITABLE = 16,
     IMAGE = 32,
     VIDEO = 64,
     AUDIO = 128,
     FRAME = 256,
     LAUNCHER = 512
   };
 
   // An item can be only one of these types.
   enum Type {
     NORMAL,
     CHECKBOX,
     RADIO,
     SEPARATOR
   };
 
+  // Key used to identify which extension a menu item belongs to.
+  // |webview_instance_id| = 0 for regular extension items.
+  struct ExtensionKey {
+    std::string extension_id;
+    int webview_instance_id;
+
+    ExtensionKey(const std::string& extension_id, int webview_instance_id);
+    explicit ExtensionKey(const std::string& extension_id);
+    explicit ExtensionKey(const MenuItem::Id& item_id);
+
+    bool operator==(const ExtensionKey& other) const;
+    bool operator!=(const ExtensionKey& other) const;
+    bool operator<(const ExtensionKey& other) const;
+
+    bool empty() const;
+  };
+
   // A list of Contexts for an item.
   class ContextList {
    public:
     ContextList() : value_(0) {}
     explicit ContextList(Context context) : value_(context) {}
     ContextList(const ContextList& other) : value_(other.value_) {}
 
     void operator=(const ContextList& other) {
       value_ = other.value_;
     }
@@ skipping 35 matching lines @@
            const std::string& title,
            bool checked,
            bool enabled,
            Type type,
            const ContextList& contexts);
   virtual ~MenuItem();
 
   // Simple accessor methods.
   bool incognito() const { return id_.incognito; }
   const std::string& extension_id() const { return id_.extension_id; }
+  //  const ExtensionKey extension_key() const { return ExtensionKey(id_); }
   const std::string& title() const { return title_; }
   const List& children() { return children_; }
   const Id& id() const { return id_; }
   Id* parent_id() const { return parent_id_.get(); }
   int child_count() const { return children_.size(); }
   ContextList contexts() const { return contexts_; }
   Type type() const { return type_; }
   bool checked() const { return checked_; }
   bool enabled() const { return enabled_; }
   const URLPatternSet& document_url_patterns() const {
@@ skipping 103 matching lines @@
   static MenuManager* Get(Profile* profile);
 
   // Returns the ids of extensions which have menu items registered.
   std::set<std::string> ExtensionIds();
 
   // Returns a list of all the *top-level* menu items (added via AddContextItem)
   // for the given extension id, *not* including child items (added via
   // AddChildItem); although those can be reached via the top-level items'
   // children. A view can then decide how to display these, including whether to
   // put them into a submenu if there are more than 1.
-  const MenuItem::List* MenuItems(const std::string& extension_id);
+  const MenuItem::List* MenuItems(const MenuItem::ExtensionKey& extension_key);
 
   // Adds a top-level menu item for an extension, requiring the |extension|
   // pointer so it can load the icon for the extension. Takes ownership of
   // |item|. Returns a boolean indicating success or failure.
   bool AddContextItem(const Extension* extension, MenuItem* item);
 
   // Add an item as a child of another item which has been previously added, and
   // takes ownership of |item|. Returns a boolean indicating success or failure.
   bool AddChildItem(const MenuItem::Id& parent_id,
                     MenuItem* child);
 
   // Makes existing item with |child_id| a child of the item with |parent_id|.
   // If the child item was already a child of another parent, this will remove
   // it from that parent first. It is an error to try and move an item to be a
   // child of one of its own descendants. It is legal to pass NULL for
   // |parent_id|, which means the item should be moved to the top-level.
   bool ChangeParent(const MenuItem::Id& child_id,
                     const MenuItem::Id* parent_id);
 
   // Removes a context menu item with the given id (whether it is a top-level
   // item or a child of some other item), returning true if the item was found
   // and removed or false otherwise.
   bool RemoveContextMenuItem(const MenuItem::Id& id);
 
-  // Removes all items for the given extension id.
-  void RemoveAllContextItems(const std::string& extension_id);
+  // Removes all items for the given extension specified by |extension_key|.
+  void RemoveAllContextItems(const MenuItem::ExtensionKey& extension_key);
 
   // Returns the item with the given |id| or NULL.
   MenuItem* GetItemById(const MenuItem::Id& id) const;
 
   // Notify the MenuManager that an item has been updated not through
   // an explicit call into MenuManager. For example, if an item is
   // acquired by a call to GetItemById and changed, then this should be called.
   // Returns true if the item was found or false otherwise.
   bool ItemUpdated(const MenuItem::Id& id);
 
@@ skipping 34 matching lines @@
   // Make sure that there is only one radio item selected at once in any run.
   // If there are no radio items selected, then the first item in the run
   // will get selected. If there are multiple radio items selected, then only
   // the last one will get selcted.
   void SanitizeRadioList(const MenuItem::List& item_list);
 
   // Returns true if item is a descendant of an item with id |ancestor_id|.
   bool DescendantOf(MenuItem* item, const MenuItem::Id& ancestor_id);
 
   // We keep items organized by mapping an extension id to a list of items.
-  typedef std::map<std::string, MenuItem::List> MenuItemMap;
+  typedef std::map<MenuItem::ExtensionKey, MenuItem::List> MenuItemMap;
   MenuItemMap context_items_;
 
   // This lets us make lookup by id fast. It maps id to MenuItem* for
   // all items the menu manager knows about, including all children of top-level
   // items.
   std::map<MenuItem::Id, MenuItem*> items_by_id_;
 
   content::NotificationRegistrar registrar_;
 
   ExtensionIconManager icon_manager_;
 
   Profile* profile_;
 
   // Owned by ExtensionSystem.
   StateStore* store_;
 
   DISALLOW_COPY_AND_ASSIGN(MenuManager);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_MENU_MANAGER_H_