| // Copyright (c) 2010 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_UI_THREAD_HELPERS_H_ |
| #define CHROME_BROWSER_UI_THREAD_HELPERS_H_ |
| #pragma once |
| |
| class Task; |
| |
| namespace tracked_objects { |
| class Location; |
| } // namespace tracked_objects |
| |
| namespace ui_thread_helpers { |
| |
| // This can be used in place of ChromeThread::PostTask(ChromeThread::UI, ...). |
| // The purpose of this function is to be able to execute Chrome work alongside |
| // native work when a message loop is running nested or, in the case of Mac, |
| // in a different mode. Currently this is used for updating the HostZoomMap |
| // while the Wrench menu is open, allowing for the zoom display to update. See |
| // http://crbug.com/48679 for the full rationale. |
| // |
| // CAVEAT EMPTOR: This function's implementation is different across platforms |
| // and may run the Task in a way that differs from the stock MessageLoop. You |
| // should check the behavior on all platforms if you use this. |
| bool PostTaskWhileRunningMenu(const tracked_objects::Location& from_here, |
| Task* task); |
| |
| } // namespace ui_thread_helpers |
| |
| #endif // CHROME_BROWSER_UI_THREAD_HELPERS_H_ |
