зеркало из https://github.com/mozilla/gecko-dev.git
91 строка
2.6 KiB
C++
91 строка
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public License
|
|
* Version 1.0 (the "NPL"); you may not use this file except in
|
|
* compliance with the NPL. You may obtain a copy of the NPL at
|
|
* http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
|
* for the specific language governing rights and limitations under the
|
|
* NPL.
|
|
*
|
|
* The Initial Developer of this code under the NPL is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
|
* Reserved.
|
|
*/
|
|
|
|
// CTargetedUpdateMenuRegistry.h
|
|
|
|
//
|
|
// CTargetedUpdateMenuRegistry is used in conjunction with LEventDispatchers
|
|
// which are CTargetedUpdateMenuRegistry-aware to enable a more targeted
|
|
// update of menus.
|
|
//
|
|
// One common example of this is menu items whose text should change when
|
|
// certain modifiers are held down (Close -> Close All when optionKey is
|
|
// held down, for example).
|
|
//
|
|
// Usage notes for callers of UpdateMenus:
|
|
//
|
|
// (1) Call SetCommands with a list of commands which should be updated.
|
|
// (2) Call UpdateMenus.
|
|
//
|
|
// Usage notes for implementors of UpdateMenus:
|
|
//
|
|
// (1) When looping through commands in menus, determine if the registry
|
|
// is active by calling UseRegistryToUpdateMenus.
|
|
// (2) If the registry is active, then check to see if the command is
|
|
// in the registry by calling CommandInRegistry before processing
|
|
// command status for the command.
|
|
//
|
|
// Note: For the targeted update to be useful, there should generally be
|
|
// a very small number of targeted commands. In fact, command lookup will
|
|
// slow down if there are too many commands.
|
|
|
|
#ifndef CTargetedUpdateMenuRegistry_H
|
|
#define CTargetedUpdateMenuRegistry_H
|
|
#pragma once
|
|
|
|
// Includes
|
|
|
|
#include <list>
|
|
#include <algorithm>
|
|
|
|
#include <LCommander.h>
|
|
#include <LEventDispatcher.h>
|
|
|
|
// Class declaration
|
|
|
|
class CTargetedUpdateMenuRegistry
|
|
{
|
|
public:
|
|
|
|
// Interface for callers of UpdateMenus
|
|
|
|
static void SetCommands(const list<CommandT>& inCommands);
|
|
|
|
static void UpdateMenus();
|
|
|
|
// Interface for implementors of UpdateMenus
|
|
|
|
static Boolean CommandInRegistry(CommandT inCommand);
|
|
|
|
static Boolean UseRegistryToUpdateMenus();
|
|
|
|
private:
|
|
static Boolean sUseRegistryToUpdateMenus;
|
|
static list<CommandT> sCommands;
|
|
};
|
|
|
|
// Inline methods
|
|
|
|
inline
|
|
Boolean
|
|
CTargetedUpdateMenuRegistry::UseRegistryToUpdateMenus()
|
|
{
|
|
return sUseRegistryToUpdateMenus;
|
|
}
|
|
|
|
#endif |