15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2011 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef UI_BASE_WIN_ATL_MODULE_H_ 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define UI_BASE_WIN_ATL_MODULE_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <atlbase.h> 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <atlcom.h> 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/basictypes.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace ui { 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace win { 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Ensure that we have exactly one ATL module registered. It's safe to 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// call this more than once. ATL functions will crash if there's no 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// ATL module registered, or if you try to register two of them, so 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// dynamically registering one if needed makes it much easier for us 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// to support different build configurations like multi-dll without 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// worrying about which side of a module boundary each ATL module object 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// belongs on. 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This function must be implemented in this header file rather than a 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// source file so that it's inlined into the module where it's included, 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// rather than in the "ui" module. 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static void CreateATLModuleIfNeeded() { 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (_pAtlModule == NULL) { 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // This creates the module and automatically updates _pAtlModule. 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CR_DEFINE_STATIC_LOCAL(CComModule, module, ()); 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace win 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace ui 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // UI_BASE_WIN_ATL_MODULE_H_ 38