components/pdf/browser/pdf_web_contents_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 COMPONENTS_PDF_BROWSER_PDF_WEB_CONTENTS_HELPER_H_
   6 #define COMPONENTS_PDF_BROWSER_PDF_WEB_CONTENTS_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 namespace content {
  17 class WebContents;
  18 }
  19
  20 namespace pdf {
  21
  22 class OpenPDFInReaderPromptClient;
  23 class PDFWebContentsHelperClient;
  24
  25 // Per-WebContents class to handle PDF messages.
  26 class PDFWebContentsHelper
  27     : public content::WebContentsObserver,
  28       public content::WebContentsUserData<PDFWebContentsHelper> {
  29  public:
  30   static void CreateForWebContentsWithClient(
  31       content::WebContents* contents,
  32       scoped_ptr<PDFWebContentsHelperClient> client);
  33
  34   OpenPDFInReaderPromptClient* open_in_reader_prompt() const {
  35     return open_in_reader_prompt_.get();
  36   }
  37
  38   void ShowOpenInReaderPrompt(scoped_ptr<OpenPDFInReaderPromptClient> prompt);
  39
  40  private:
  41   PDFWebContentsHelper(content::WebContents* web_contents,
  42                        scoped_ptr<PDFWebContentsHelperClient> client);
  43   ~PDFWebContentsHelper() override;
  44
  45   // content::WebContentsObserver overrides:
  46   bool OnMessageReceived(const IPC::Message& message) override;
  47   void DidNavigateMainFrame(
  48       const content::LoadCommittedDetails& details,
  49       const content::FrameNavigateParams& params) override;
  50
  51   // Internal helpers ----------------------------------------------------------
  52
  53   void UpdateLocationBar();
  54
  55   // Message handlers.
  56   void OnHasUnsupportedFeature();
  57   void OnSaveURLAs(const GURL& url, const content::Referrer& referrer);
  58   void OnUpdateContentRestrictions(int content_restrictions);
  59
  60   // The model for the confirmation prompt to open a PDF in Adobe Reader.
  61   scoped_ptr<OpenPDFInReaderPromptClient> open_in_reader_prompt_;
  62   scoped_ptr<PDFWebContentsHelperClient> client_;
  63
  64   DISALLOW_COPY_AND_ASSIGN(PDFWebContentsHelper);
  65 };
  66
  67 }  // namespace pdf
  68
  69 #endif  // COMPONENTS_PDF_BROWSER_PDF_WEB_CONTENTS_HELPER_H_