| // Copyright 2014 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. |
| |
| #ifndef CHROME_BROWSER_PRINTING_PDF_TO_EMF_CONVERTER_H_ |
| #define CHROME_BROWSER_PRINTING_PDF_TO_EMF_CONVERTER_H_ |
| |
| #include <memory> |
| |
| #include "base/callback_forward.h" |
| #include "base/memory/ref_counted_memory.h" |
| |
| namespace printing { |
| |
| class MetafilePlayer; |
| struct PdfRenderSettings; |
| |
| class PdfConverter { |
| public: |
| using StartCallback = base::OnceCallback<void(int page_count)>; |
| using GetPageCallback = |
| base::RepeatingCallback<void(int page_number, |
| float scale_factor, |
| std::unique_ptr<MetafilePlayer> file)>; |
| virtual ~PdfConverter(); |
| |
| // Starts conversion of PDF provided as |data|. Calls |start_callback| |
| // with positive |page_count|. |page_count| is 0 if initialization failed. |
| static std::unique_ptr<PdfConverter> StartPdfConverter( |
| const scoped_refptr<base::RefCountedMemory>& data, |
| const PdfRenderSettings& conversion_settings, |
| StartCallback start_callback); |
| |
| // Requests conversion of the page. |page_number| is 0-base page number in |
| // PDF provided in Start() call. |
| // Calls |get_page_callback| after conversion. |emf| of callback in not NULL |
| // if conversion succeeded. |
| virtual void GetPage(int page_number, |
| const GetPageCallback& get_page_callback) = 0; |
| }; |
| |
| // Object used by tests to exercise the temporary file creation failure code |
| // path. As long as this object is alive, the PdfConverter will fail when |
| // creating temporary files. |
| class ScopedSimulateFailureCreatingTempFileForTests { |
| public: |
| ScopedSimulateFailureCreatingTempFileForTests(); |
| ~ScopedSimulateFailureCreatingTempFileForTests(); |
| }; |
| |
| } // namespace printing |
| |
| #endif // CHROME_BROWSER_PRINTING_PDF_TO_EMF_CONVERTER_H_ |