blob: 4d135484e7d3409381fdf9ffba33e3a7ec376d7f [file] [log] [blame]
// Copyright (c) 2012 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.
#include "components/printing/renderer/print_render_frame_helper.h"
#include <stddef.h>
#include "base/logging.h"
#include "build/build_config.h"
#include "components/printing/common/print_messages.h"
#include "printing/features/features.h"
#include "printing/metafile_skia_wrapper.h"
#if defined(OS_ANDROID)
#include "base/file_descriptor_posix.h"
#include "base/process/process_handle.h"
#endif // defined(OS_ANDROID)
namespace {
#if defined(OS_ANDROID)
bool SaveToFD(const printing::Metafile& metafile,
const base::FileDescriptor& fd) {
DCHECK_GT(metafile.GetDataSize(), 0U);
if (fd.fd < 0) {
DLOG(ERROR) << "Invalid file descriptor!";
return false;
base::File file(fd.fd);
bool result = metafile.SaveTo(&file);
DLOG_IF(ERROR, !result) << "Failed to save file with fd " << fd.fd;
if (!fd.auto_close)
return result;
#endif // defined(OS_ANDROID)
} // namespace
namespace printing {
bool PrintRenderFrameHelper::PrintPagesNative(blink::WebLocalFrame* frame,
int page_count) {
const PrintMsg_PrintPages_Params& params = *print_pages_params_;
const PrintMsg_Print_Params& print_params = params.params;
std::vector<int> printed_pages = GetPrintedPages(params, page_count);
if (printed_pages.empty())
return false;
PdfMetafileSkia metafile(print_params.printed_doc_type);
for (int page_number : printed_pages) {
PrintPageInternal(print_params, page_number, page_count, frame, &metafile,
nullptr, nullptr);
// blink::printEnd() for PDF should be called before metafile is closed.
#if defined(OS_ANDROID)
int sequence_number = -1;
base::FileDescriptor fd;
// Ask the browser to open a file for us.
Send(new PrintHostMsg_AllocateTempFileForPrinting(routing_id(), &fd,
if (!SaveToFD(metafile, fd))
return false;
// Tell the browser we've finished writing the file.
Send(new PrintHostMsg_TempFileForPrintingWritten(
routing_id(), sequence_number, printed_pages.size()));
return true;
PrintHostMsg_DidPrintDocument_Params page_params;
if (!CopyMetafileDataToReadOnlySharedMem(metafile,
&page_params.metafile_data_handle)) {
return false;
page_params.data_size = metafile.GetDataSize();
page_params.document_cookie = print_params.document_cookie;
Send(new PrintHostMsg_DidPrintDocument(routing_id(), page_params));
return true;
#endif // defined(OS_ANDROID)
} // namespace printing