// Copyright 2008, Google Inc.
//
// Redistribution and use in source and binary forms, with or without 
// modification, are permitted provided that the following conditions are met:
//
//  1. Redistributions of source code must retain the above copyright notice, 
//     this list of conditions and the following disclaimer.
//  2. Redistributions in binary form must reproduce the above copyright notice,
//     this list of conditions and the following disclaimer in the documentation
//     and/or other materials provided with the distribution.
//  3. Neither the name of Google Inc. nor the names of its contributors may be
//     used to endorse or promote products derived from this software without
//     specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#include "gears/ui/safari/settings_menu.h"
#include "gears/ui/common/settings_dialog.h"

@implementation GearsSettingsMenuEnabler
+ (BOOL)installHook {
  GearsSettingsMenuEnabler *inst = [[GearsSettingsMenuEnabler alloc] init];
  if (!inst) return NO;
  
  NSApplication *app = [NSApplication sharedApplication];
  if (!app) return NO;

  // Make sure we don't try to add our Notification listener more than once.
  static bool notification_hook_installed = false;
  assert(!notification_hook_installed);
  if (!notification_hook_installed) {
    [[NSNotificationCenter defaultCenter] 
        addObserver:inst 
           selector:@selector(applicationDidFinishLaunching:) 
               name:NSApplicationDidFinishLaunchingNotification
             object:app];
    notification_hook_installed = true;
  }
  return YES;
}

- (void)applicationDidFinishLaunching:(NSNotification*)aNotification {
  NSMenu *mainMenu = [NSApp mainMenu];
  NSMenuItem *app_menu = [mainMenu itemAtIndex:0];
  if (!app_menu) return;
  NSMenu *submenu = [app_menu submenu];
  NSMenuItem *new_menu = 
      [submenu insertItemWithTitle:@ PRODUCT_FRIENDLY_NAME_ASCII " Settings..." 
                            action:@selector(showSettingsDialog) 
                     keyEquivalent:@"" 
                           atIndex:4];
  [new_menu setTarget:self];
}

- (void)showSettingsDialog {
  if (!SettingsDialog::IsVisible()) {
    SettingsDialog::Run();
  }
}

- (BOOL)validateMenuItem:(NSMenuItem *)item {
  return !SettingsDialog::IsVisible();
}

@end