electron/chromium_src/chrome/utility/printing_handler.h
2015-04-30 13:42:08 +08:00

59 lines
1.7 KiB
C++

// 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_UTILITY_PRINTING_HANDLER_H_
#define CHROME_UTILITY_PRINTING_HANDLER_H_
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "chrome/utility/utility_message_handler.h"
#include "ipc/ipc_platform_file.h"
#include "printing/pdf_render_settings.h"
#if !defined(ENABLE_PRINT_PREVIEW) && !defined(OS_WIN)
#error "Windows or full printing must be enabled"
#endif
namespace printing {
class PdfRenderSettings;
struct PwgRasterSettings;
struct PageRange;
}
// Dispatches IPCs for printing.
class PrintingHandler : public UtilityMessageHandler {
public:
PrintingHandler();
~PrintingHandler() override;
// IPC::Listener:
bool OnMessageReceived(const IPC::Message& message) override;
private:
// IPC message handlers.
#if defined(OS_WIN)
void OnRenderPDFPagesToMetafile(IPC::PlatformFileForTransit pdf_transit,
const printing::PdfRenderSettings& settings);
void OnRenderPDFPagesToMetafileGetPage(
int page_number,
IPC::PlatformFileForTransit output_file);
void OnRenderPDFPagesToMetafileStop();
#endif // OS_WIN
#if defined(OS_WIN)
int LoadPDF(base::File pdf_file);
bool RenderPdfPageToMetafile(int page_number,
base::File output_file,
float* scale_factor);
#endif // OS_WIN
#if defined(OS_WIN)
std::vector<char> pdf_data_;
printing::PdfRenderSettings pdf_rendering_settings_;
#endif
DISALLOW_COPY_AND_ASSIGN(PrintingHandler);
};
#endif // CHROME_UTILITY_PRINTING_HANDLER_H_