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// 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(
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, 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_
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