Home | History | Annotate | Download | only in frame 
      1 // Copyright (c) 2012 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/ui/views/frame/system_menu_model_delegate.h"
      6 
      7 #include "base/prefs/pref_service.h"
      8 #include "chrome/app/chrome_command_ids.h"
      9 #include "chrome/browser/command_updater.h"
     10 #include "chrome/browser/profiles/profile.h"
     11 #include "chrome/browser/sessions/tab_restore_service.h"
     12 #include "chrome/browser/sessions/tab_restore_service_factory.h"
     13 #include "chrome/browser/ui/browser_commands.h"
     14 #include "chrome/common/pref_names.h"
     15 #include "chrome/grit/generated_resources.h"
     16 #include "ui/base/l10n/l10n_util.h"
     17 
     18 SystemMenuModelDelegate::SystemMenuModelDelegate(
     19     ui::AcceleratorProvider* provider,
     20     Browser* browser)
     21     : provider_(provider),
     22       browser_(browser) {
     23 }
     24 
     25 SystemMenuModelDelegate::~SystemMenuModelDelegate() {
     26 }
     27 
     28 bool SystemMenuModelDelegate::IsCommandIdChecked(int command_id) const {
     29   switch (command_id) {
     30     case IDC_USE_SYSTEM_TITLE_BAR: {
     31       PrefService* prefs = browser_->profile()->GetPrefs();
     32       return !prefs->GetBoolean(prefs::kUseCustomChromeFrame);
     33     }
     34     default:
     35       return false;
     36   }
     37 }
     38 
     39 bool SystemMenuModelDelegate::IsCommandIdEnabled(int command_id) const {
     40   if (!chrome::IsCommandEnabled(browser_, command_id))
     41     return false;
     42 
     43   if (command_id != IDC_RESTORE_TAB)
     44     return true;
     45 
     46   // chrome::IsCommandEnabled(IDC_RESTORE_TAB) returns true if TabRestoreService
     47   // hasn't been loaded yet. Return false if this is the case as we don't have
     48   // a good way to dynamically update the menu when TabRestoreService finishes
     49   // loading.
     50   // TODO(sky): add a way to update menu.
     51   TabRestoreService* trs =
     52       TabRestoreServiceFactory::GetForProfile(browser_->profile());
     53   if (!trs->IsLoaded()) {
     54     trs->LoadTabsFromLastSession();
     55     return false;
     56   }
     57   return true;
     58 }
     59 
     60 bool SystemMenuModelDelegate::GetAcceleratorForCommandId(int command_id,
     61                                              ui::Accelerator* accelerator) {
     62   return provider_->GetAcceleratorForCommandId(command_id, accelerator);
     63 }
     64 
     65 bool SystemMenuModelDelegate::IsItemForCommandIdDynamic(int command_id) const {
     66   return command_id == IDC_RESTORE_TAB;
     67 }
     68 
     69 base::string16 SystemMenuModelDelegate::GetLabelForCommandId(
     70     int command_id) const {
     71   DCHECK_EQ(command_id, IDC_RESTORE_TAB);
     72 
     73   int string_id = IDS_RESTORE_TAB;
     74   if (IsCommandIdEnabled(command_id)) {
     75     TabRestoreService* trs =
     76         TabRestoreServiceFactory::GetForProfile(browser_->profile());
     77     trs->LoadTabsFromLastSession();
     78     if (trs && !trs->entries().empty() &&
     79         trs->entries().front()->type == TabRestoreService::WINDOW)
     80       string_id = IDS_RESTORE_WINDOW;
     81   }
     82   return l10n_util::GetStringUTF16(string_id);
     83 }
     84 
     85 void SystemMenuModelDelegate::ExecuteCommand(int command_id, int event_flags) {
     86   chrome::ExecuteCommand(browser_, command_id);
     87 }
     88