src/chrome/browser/extensions/theme_installed_infobar_delegate.cc

   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/extensions/theme_installed_infobar_delegate.h"
   6
   7 #include <string>
   8
   9 #include "base/strings/utf_string_conversions.h"
  10 #include "chrome/browser/chrome_notification_types.h"
  11 #include "chrome/browser/extensions/extension_service.h"
  12 #include "chrome/browser/infobars/infobar_service.h"
  13 #include "chrome/browser/profiles/profile.h"
  14 #include "chrome/browser/themes/theme_service.h"
  15 #include "chrome/browser/themes/theme_service_factory.h"
  16 #include "chrome/browser/ui/browser_finder.h"
  17 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  18 #include "components/infobars/core/infobar.h"
  19 #include "content/public/browser/notification_source.h"
  20 #include "extensions/browser/extension_system.h"
  21 #include "extensions/common/extension.h"
  22 #include "grit/generated_resources.h"
  23 #include "grit/theme_resources.h"
  24 #include "ui/base/l10n/l10n_util.h"
  25
  26
  27 // static
  28 void ThemeInstalledInfoBarDelegate::Create(
  29     const extensions::Extension* new_theme,
  30     Profile* profile,
  31     const std::string& previous_theme_id,
  32     bool previous_using_system_theme) {
  33   DCHECK(new_theme);
  34   if (!new_theme->is_theme())
  35     return;
  36
  37   // Create the new infobar.
  38   // FindTabbedBrowser() is called with |match_original_profiles| true because a
  39   // theme install in either a normal or incognito window for a profile affects
  40   // all normal and incognito windows for that profile.
  41   Browser* browser =
  42       chrome::FindTabbedBrowser(profile, true, chrome::GetActiveDesktop());
  43   if (!browser)
  44     return;
  45   content::WebContents* web_contents =
  46       browser->tab_strip_model()->GetActiveWebContents();
  47   if (!web_contents)
  48     return;
  49   InfoBarService* infobar_service =
  50       InfoBarService::FromWebContents(web_contents);
  51   ThemeService* theme_service = ThemeServiceFactory::GetForProfile(profile);
  52   scoped_ptr<infobars::InfoBar> new_infobar(
  53       ConfirmInfoBarDelegate::CreateInfoBar(scoped_ptr<ConfirmInfoBarDelegate>(
  54           new ThemeInstalledInfoBarDelegate(
  55               extensions::ExtensionSystem::Get(profile)->extension_service(),
  56               theme_service, new_theme,
  57               previous_theme_id, previous_using_system_theme))));
  58
  59   // If there's a previous theme infobar, just replace that instead of adding a
  60   // new one.
  61   for (size_t i = 0; i < infobar_service->infobar_count(); ++i) {
  62     infobars::InfoBar* old_infobar = infobar_service->infobar_at(i);
  63     ThemeInstalledInfoBarDelegate* theme_infobar =
  64         old_infobar->delegate()->AsThemePreviewInfobarDelegate();
  65     if (theme_infobar) {
  66       // If the user installed the same theme twice, ignore the second install
  67       // and keep the first install info bar, so that they can easily undo to
  68       // get back the previous theme.
  69       if (theme_infobar->theme_id_ != new_theme->id()) {
  70         infobar_service->ReplaceInfoBar(old_infobar, new_infobar.Pass());
  71         theme_service->OnInfobarDisplayed();
  72       }
  73       return;
  74     }
  75   }
  76
  77   // No previous theme infobar, so add this.
  78   infobar_service->AddInfoBar(new_infobar.Pass());
  79   theme_service->OnInfobarDisplayed();
  80 }
  81
  82 ThemeInstalledInfoBarDelegate::ThemeInstalledInfoBarDelegate(
  83     ExtensionService* extension_service,
  84     ThemeService* theme_service,
  85     const extensions::Extension* new_theme,
  86     const std::string& previous_theme_id,
  87     bool previous_using_system_theme)
  88     : ConfirmInfoBarDelegate(),
  89       extension_service_(extension_service),
  90       theme_service_(theme_service),
  91       name_(new_theme->name()),
  92       theme_id_(new_theme->id()),
  93       previous_theme_id_(previous_theme_id),
  94       previous_using_system_theme_(previous_using_system_theme) {
  95   registrar_.Add(this, chrome::NOTIFICATION_BROWSER_THEME_CHANGED,
  96                  content::Source<ThemeService>(theme_service_));
  97 }
  98
  99 ThemeInstalledInfoBarDelegate::~ThemeInstalledInfoBarDelegate() {
 100   // We don't want any notifications while we're running our destructor.
 101   registrar_.RemoveAll();
 102
 103   theme_service_->OnInfobarDestroyed();
 104 }
 105
 106 int ThemeInstalledInfoBarDelegate::GetIconID() const {
 107   // TODO(aa): Reply with the theme's icon, but this requires reading it
 108   // asynchronously from disk.
 109   return IDR_INFOBAR_THEME;
 110 }
 111
 112 infobars::InfoBarDelegate::Type ThemeInstalledInfoBarDelegate::GetInfoBarType()
 113     const {
 114   return PAGE_ACTION_TYPE;
 115 }
 116
 117 ThemeInstalledInfoBarDelegate*
 118     ThemeInstalledInfoBarDelegate::AsThemePreviewInfobarDelegate() {
 119   return this;
 120 }
 121
 122 base::string16 ThemeInstalledInfoBarDelegate::GetMessageText() const {
 123   return l10n_util::GetStringFUTF16(IDS_THEME_INSTALL_INFOBAR_LABEL,
 124                                     base::UTF8ToUTF16(name_));
 125 }
 126
 127 int ThemeInstalledInfoBarDelegate::GetButtons() const {
 128   return BUTTON_CANCEL;
 129 }
 130
 131 base::string16 ThemeInstalledInfoBarDelegate::GetButtonLabel(
 132     InfoBarButton button) const {
 133   DCHECK_EQ(BUTTON_CANCEL, button);
 134   return l10n_util::GetStringUTF16(IDS_THEME_INSTALL_INFOBAR_UNDO_BUTTON);
 135 }
 136
 137 bool ThemeInstalledInfoBarDelegate::Cancel() {
 138   if (!previous_theme_id_.empty()) {
 139     const extensions::Extension* previous_theme =
 140         extension_service_->GetExtensionById(previous_theme_id_, true);
 141     if (previous_theme) {
 142       theme_service_->SetTheme(previous_theme);
 143       return false;  // The theme change will close us.
 144     }
 145   }
 146
 147   if (previous_using_system_theme_)
 148     theme_service_->UseSystemTheme();
 149   else
 150     theme_service_->UseDefaultTheme();
 151   return false;  // The theme change will close us.
 152 }
 153
 154 void ThemeInstalledInfoBarDelegate::Observe(
 155     int type,
 156     const content::NotificationSource& source,
 157     const content::NotificationDetails& details) {
 158   DCHECK_EQ(chrome::NOTIFICATION_BROWSER_THEME_CHANGED, type);
 159   // If the new theme is different from what this info bar is associated with,
 160   // close this info bar since it is no longer relevant.
 161   if (theme_id_ != theme_service_->GetThemeID())
 162     infobar()->RemoveSelf();
 163 }