chrome/browser/ui/pdf/pdf_tab_helper.h

   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 #ifndef CHROME_BROWSER_UI_PDF_PDF_TAB_HELPER_H_
   6 #define CHROME_BROWSER_UI_PDF_PDF_TAB_HELPER_H_
   7
   8 #include <string>
   9
  10 #include "base/callback.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "content/public/browser/web_contents_observer.h"
  13 #include "content/public/browser/web_contents_user_data.h"
  14 #include "ipc/ipc_message.h"
  15
  16 class OpenPDFInReaderPromptDelegate;
  17
  18 namespace content {
  19 class WebContents;
  20 }
  21
  22 // Per-tab class to handle PDF messages.
  23 class PDFTabHelper : public content::WebContentsObserver,
  24                      public content::WebContentsUserData<PDFTabHelper>  {
  25  public:
  26
  27   explicit PDFTabHelper(content::WebContents* web_contents);
  28   virtual ~PDFTabHelper();
  29
  30   OpenPDFInReaderPromptDelegate* open_in_reader_prompt() const {
  31     return open_in_reader_prompt_.get();
  32   }
  33
  34   void ShowOpenInReaderPrompt(scoped_ptr<OpenPDFInReaderPromptDelegate> prompt);
  35
  36  private:
  37   // content::WebContentsObserver overrides:
  38   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
  39   virtual void DidNavigateMainFrame(
  40       const content::LoadCommittedDetails& details,
  41       const content::FrameNavigateParams& params) OVERRIDE;
  42
  43   // Internal helpers ----------------------------------------------------------
  44
  45   void UpdateLocationBar();
  46   void OnModalPromptForPasswordClosed(IPC::Message* reply_message,
  47                                       bool success,
  48                                       const base::string16& actual_value);
  49
  50   // Message handlers.
  51   void OnHasUnsupportedFeature();
  52   void OnSaveURLAs(const GURL& url,
  53                    const content::Referrer& referrer);
  54   void OnUpdateContentRestrictions(int content_restrictions);
  55   void OnModalPromptForPassword(const std::string& prompt,
  56                                 IPC::Message* reply_message);
  57
  58   // The model for the confirmation prompt to open a PDF in Adobe Reader.
  59   scoped_ptr<OpenPDFInReaderPromptDelegate> open_in_reader_prompt_;
  60
  61   DISALLOW_COPY_AND_ASSIGN(PDFTabHelper);
  62 };
  63
  64 typedef base::Callback<void(bool /* success */,
  65                             const base::string16& /* password */)>
  66                                 PasswordDialogClosedCallback;
  67
  68 // Shows a tab-modal dialog to get a password for a PDF document.
  69 void ShowPDFPasswordDialog(content::WebContents* web_contents,
  70                            const base::string16& prompt,
  71                            const PasswordDialogClosedCallback& callback);
  72
  73 #endif  // CHROME_BROWSER_UI_PDF_PDF_TAB_HELPER_H_