Home | History | Annotate | Download | only in extensions 
      1 // Copyright (c) 2011 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/utf_string_conversions.h"
     10 #include "chrome/browser/extensions/extension_service.h"
     11 #include "chrome/browser/profiles/profile.h"
     12 #include "chrome/browser/themes/theme_service.h"
     13 #include "chrome/browser/themes/theme_service_factory.h"
     14 #include "chrome/common/extensions/extension.h"
     15 #include "content/browser/tab_contents/tab_contents.h"
     16 #include "content/common/notification_service.h"
     17 #include "grit/generated_resources.h"
     18 #include "grit/theme_resources.h"
     19 #include "ui/base/l10n/l10n_util.h"
     20 #include "ui/base/resource/resource_bundle.h"
     21 
     22 ThemeInstalledInfoBarDelegate::ThemeInstalledInfoBarDelegate(
     23     TabContents* tab_contents,
     24     const Extension* new_theme,
     25     const std::string& previous_theme_id)
     26     : ConfirmInfoBarDelegate(tab_contents),
     27       profile_(tab_contents->profile()),
     28       theme_service_(ThemeServiceFactory::GetForProfile(profile_)),
     29       name_(new_theme->name()),
     30       theme_id_(new_theme->id()),
     31       previous_theme_id_(previous_theme_id),
     32       tab_contents_(tab_contents) {
     33   theme_service_->OnInfobarDisplayed();
     34   registrar_.Add(this, NotificationType::BROWSER_THEME_CHANGED,
     35                  NotificationService::AllSources());
     36 }
     37 
     38 bool ThemeInstalledInfoBarDelegate::MatchesTheme(const Extension* theme) const {
     39   return theme && (theme->id() == theme_id_);
     40 }
     41 
     42 ThemeInstalledInfoBarDelegate::~ThemeInstalledInfoBarDelegate() {
     43   // We don't want any notifications while we're running our destructor.
     44   registrar_.RemoveAll();
     45 
     46   theme_service_->OnInfobarDestroyed();
     47 }
     48 
     49 bool ThemeInstalledInfoBarDelegate::Cancel() {
     50   if (!previous_theme_id_.empty()) {
     51     ExtensionService* service = profile_->GetExtensionService();
     52     if (service) {
     53       const Extension* previous_theme =
     54           service->GetExtensionById(previous_theme_id_, true);
     55       if (previous_theme) {
     56         theme_service_->SetTheme(previous_theme);
     57         return true;
     58       }
     59     }
     60   }
     61 
     62   theme_service_->UseDefaultTheme();
     63   return true;
     64 }
     65 
     66 void ThemeInstalledInfoBarDelegate::InfoBarClosed() {
     67   delete this;
     68 }
     69 
     70 SkBitmap* ThemeInstalledInfoBarDelegate::GetIcon() const {
     71   // TODO(aa): Reply with the theme's icon, but this requires reading it
     72   // asynchronously from disk.
     73   return ResourceBundle::GetSharedInstance().GetBitmapNamed(IDR_INFOBAR_THEME);
     74 }
     75 
     76 ThemeInstalledInfoBarDelegate*
     77     ThemeInstalledInfoBarDelegate::AsThemePreviewInfobarDelegate() {
     78   return this;
     79 }
     80 
     81 string16 ThemeInstalledInfoBarDelegate::GetMessageText() const {
     82   return l10n_util::GetStringFUTF16(IDS_THEME_INSTALL_INFOBAR_LABEL,
     83                                     UTF8ToUTF16(name_));
     84 }
     85 
     86 int ThemeInstalledInfoBarDelegate::GetButtons() const {
     87   return BUTTON_CANCEL;
     88 }
     89 
     90 string16 ThemeInstalledInfoBarDelegate::GetButtonLabel(
     91     InfoBarButton button) const {
     92   DCHECK_EQ(BUTTON_CANCEL, button);
     93   return l10n_util::GetStringUTF16(IDS_THEME_INSTALL_INFOBAR_UNDO_BUTTON);
     94 }
     95 
     96 void ThemeInstalledInfoBarDelegate::Observe(
     97     NotificationType type,
     98     const NotificationSource& source,
     99     const NotificationDetails& details) {
    100   DCHECK_EQ(NotificationType::BROWSER_THEME_CHANGED, type.value);
    101   // If the new theme is different from what this info bar is associated
    102   // with, close this info bar since it is no longer relevant.
    103   if (theme_id_ != theme_service_->GetThemeID()) {
    104     if (tab_contents_ && !tab_contents_->is_being_destroyed()) {
    105       tab_contents_->RemoveInfoBar(this);
    106       // The infobar is gone so there is no reason for this delegate to keep
    107       // a pointer to the TabContents (the TabContents has deleted its
    108       // reference to this delegate and a new delegate will be created if
    109       // a new infobar is created).
    110       tab_contents_ = NULL;
    111       // Although it's not being used anymore, this delegate is never deleted.
    112       // It can not be deleted now because it is still needed if we
    113       // "undo" the theme change that triggered this notification
    114       // (when InfoBar::OnBackgroundExpose() is called). This will likely
    115       // be fixed when infobar delegate deletion is cleaned up for
    116       // http://crbug.com/62154.
    117     }
    118   }
    119 }
    120