chrome/browser/process_singleton_modal_dialog_lock.cc

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/process_singleton_modal_dialog_lock.h"
   6
   7 #if defined(OS_WIN)
   8 #include <Windows.h>
   9 #endif
  10
  11 #include "base/bind.h"
  12 #include "base/command_line.h"
  13 #include "base/files/file_path.h"
  14 #include "base/logging.h"
  15
  16 namespace {
  17
  18 #if !defined(OS_WIN) || defined(USE_AURA)
  19 void DoSetForegroundWindow(gfx::NativeWindow /* target_window */) {
  20   NOTREACHED();
  21 }
  22 #else
  23 void DoSetForegroundWindow(HWND target_window) {
  24   ::SetForegroundWindow(target_window);
  25 }
  26 #endif
  27
  28 }  // namespace
  29
  30 ProcessSingletonModalDialogLock::ProcessSingletonModalDialogLock(
  31     const ProcessSingleton::NotificationCallback& original_callback)
  32     : active_dialog_(NULL),
  33       original_callback_(original_callback),
  34       set_foreground_window_handler_(base::Bind(&DoSetForegroundWindow)) {}
  35
  36 ProcessSingletonModalDialogLock::ProcessSingletonModalDialogLock(
  37     const ProcessSingleton::NotificationCallback& original_callback,
  38     const SetForegroundWindowHandler& set_foreground_window_handler)
  39     : active_dialog_(NULL),
  40       original_callback_(original_callback),
  41       set_foreground_window_handler_(set_foreground_window_handler) {}
  42
  43 ProcessSingletonModalDialogLock::~ProcessSingletonModalDialogLock() {}
  44
  45 void ProcessSingletonModalDialogLock::SetActiveModalDialog(
  46     gfx::NativeWindow active_dialog) {
  47   active_dialog_ = active_dialog;
  48 }
  49
  50 ProcessSingleton::NotificationCallback
  51 ProcessSingletonModalDialogLock::AsNotificationCallback() {
  52   return base::Bind(&ProcessSingletonModalDialogLock::NotificationCallbackImpl,
  53                     base::Unretained(this));
  54 }
  55
  56 bool ProcessSingletonModalDialogLock::NotificationCallbackImpl(
  57     const base::CommandLine& command_line,
  58     const base::FilePath& current_directory) {
  59   if (active_dialog_ != NULL) {
  60     set_foreground_window_handler_.Run(active_dialog_);
  61     return true;
  62   } else {
  63     return original_callback_.Run(command_line, current_directory);
  64   }
  65 }