text: // Copyright 2016 The Chromium Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  
  #include "chrome/browser/chooser_controller/chooser_controller.h"
  
  #include "base/notreached.h"
  #include "base/strings/utf_string_conversions.h"
  #include "chrome/grit/generated_resources.h"
  #include "components/url_formatter/elide_url.h"
  #include "content/public/browser/render_frame_host.h"
  #include "content/public/browser/web_contents.h"
  #include "extensions/buildflags/buildflags.h"
  #include "ui/base/l10n/l10n_util.h"
  #include "url/origin.h"
  
  #if BUILDFLAG(ENABLE_EXTENSIONS)
  #include "extensions/browser/extension_registry.h"
  #include "extensions/common/constants.h"
  #endif
  
  namespace {
  
  base::string16 CreateTitle(content::RenderFrameHost* render_frame_host,
                             int title_string_id_origin,
                             int title_string_id_extension) {
    url::Origin origin = render_frame_host->GetLastCommittedOrigin();
  
  #if BUILDFLAG(ENABLE_EXTENSIONS)
    if (origin.scheme() == extensions::kExtensionScheme) {
      content::WebContents* web_contents =
          content::WebContents::FromRenderFrameHost(render_frame_host);
      content::BrowserContext* browser_context =
          web_contents->GetBrowserContext();
      extensions::ExtensionRegistry* extension_registry =
          extensions::ExtensionRegistry::Get(browser_context);
      if (extension_registry) {
        const extensions::Extension* extension =
            extension_registry->enabled_extensions().GetByID(origin.host());
        if (extension) {
          return l10n_util::GetStringFUTF16(title_string_id_extension,
                                            base::UTF8ToUTF16(extension->name()));
        }
      }
    }
  #endif
  
    return l10n_util::GetStringFUTF16(
        title_string_id_origin,
        url_formatter::FormatOriginForSecurityDisplay(
            origin, url_formatter::SchemeDisplay::OMIT_CRYPTOGRAPHIC));
  }
  
  }  // namespace
  
  ChooserController::ChooserController(content::RenderFrameHost* owner,
                                       int title_string_id_origin,
                                       int title_string_id_extension) {
    if (owner) {
      title_ =
          CreateTitle(owner, title_string_id_origin, title_string_id_extension);
    }
  }
  
  ChooserController::~ChooserController() {}
  
  base::string16 ChooserController::GetTitle() const {
    return title_;
  }
  
  bool ChooserController::ShouldShowIconBeforeText() const {
    return false;
  }
  
  bool ChooserController::ShouldShowHelpButton() const {
    return true;
  }
  
  bool ChooserController::ShouldShowReScanButton() const {
    return false;
  }
  
  bool ChooserController::AllowMultipleSelection() const {
    return false;
  }
  
  base::string16 ChooserController::GetCancelButtonLabel() const {
    return l10n_util::GetStringUTF16(IDS_DEVICE_CHOOSER_CANCEL_BUTTON_TEXT);
  }
  
  bool ChooserController::BothButtonsAlwaysEnabled() const {
    return false;
  }
  
  bool ChooserController::TableViewAlwaysDisabled() const {
    return false;
  }
  
  int ChooserController::GetSignalStrengthLevel(size_t index) const {
    return -1;
  }
  
  bool ChooserController::IsConnected(size_t index) const {
    return false;
  }
  
  bool ChooserController::IsPaired(size_t index) const {
    return false;
  }
  
  void ChooserController::RefreshOptions() {
    NOTREACHED();
  }
  
  base::string16 ChooserController::GetStatus() const {
    return base::string16();
  }
  
  void ChooserController::OpenAdapterOffHelpUrl() const {
    NOTREACHED();
  }
  