| // 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. |
| |
| #include "ui/views/win/scoped_fullscreen_visibility.h" |
| |
| #include "base/logging.h" |
| |
| namespace views { |
| |
| // static |
| std::map<HWND, int>* ScopedFullscreenVisibility::full_screen_windows_ = NULL; |
| |
| ScopedFullscreenVisibility::ScopedFullscreenVisibility(HWND hwnd) |
| : hwnd_(hwnd) { |
| if (!full_screen_windows_) |
| full_screen_windows_ = new FullscreenHWNDs; |
| FullscreenHWNDs::iterator it = full_screen_windows_->find(hwnd_); |
| if (it != full_screen_windows_->end()) { |
| it->second++; |
| } else { |
| full_screen_windows_->insert(std::make_pair(hwnd_, 1)); |
| // NOTE: Be careful not to activate any windows here (for example, calling |
| // ShowWindow(SW_HIDE) will automatically activate another window). This |
| // code can be called while a window is being deactivated, and activating |
| // another window will screw up the activation that is already in progress. |
| SetWindowPos(hwnd_, NULL, 0, 0, 0, 0, |
| SWP_HIDEWINDOW | SWP_NOACTIVATE | SWP_NOMOVE | |
| SWP_NOREPOSITION | SWP_NOSIZE | SWP_NOZORDER); |
| } |
| } |
| |
| ScopedFullscreenVisibility::~ScopedFullscreenVisibility() { |
| FullscreenHWNDs::iterator it = full_screen_windows_->find(hwnd_); |
| DCHECK(it != full_screen_windows_->end()); |
| if (--it->second == 0) { |
| full_screen_windows_->erase(it); |
| ShowWindow(hwnd_, SW_SHOW); |
| } |
| if (full_screen_windows_->empty()) { |
| delete full_screen_windows_; |
| full_screen_windows_ = NULL; |
| } |
| } |
| |
| // static |
| bool ScopedFullscreenVisibility::IsHiddenForFullscreen(HWND hwnd) { |
| if (!full_screen_windows_) |
| return false; |
| return full_screen_windows_->find(hwnd) != full_screen_windows_->end(); |
| } |
| |
| } // namespace views |