зеркало из https://github.com/mozilla/gecko-dev.git
77 строки
1.8 KiB
C++
77 строки
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "PDFiumChild.h"
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#include "nsLocalFile.h"
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#include "mozilla/widget/PDFViaEMFPrintHelper.h"
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namespace mozilla {
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namespace widget {
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PDFiumChild::PDFiumChild()
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{
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}
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PDFiumChild::~PDFiumChild()
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{
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}
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bool
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PDFiumChild::Init(base::ProcessId aParentPid,
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MessageLoop* aIOLoop,
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IPC::Channel* aChannel)
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{
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if (NS_WARN_IF(!Open(aChannel, aParentPid, aIOLoop))) {
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return false;
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}
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return true;
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}
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mozilla::ipc::IPCResult
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PDFiumChild::RecvConvertToEMF(const FileDescriptor& aFD,
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const int& aPageWidth,
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const int& aPageHeight)
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{
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MOZ_ASSERT(aFD.IsValid() && aPageWidth != 0 && aPageHeight != 0);
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ipc::Shmem smem;
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PDFViaEMFPrintHelper convertor;
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if (NS_FAILED(convertor.OpenDocument(aFD))) {
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Unused << SendConvertToEMFDone(NS_ERROR_FAILURE, smem);
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return IPC_OK();
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}
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MOZ_ASSERT(convertor.GetPageCount() == 1, "we assume each given PDF contains" "one page only");
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if (!convertor.SavePageToBuffer(0, aPageWidth, aPageHeight, smem, this)) {
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Unused << SendConvertToEMFDone(NS_ERROR_FAILURE, smem);
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return IPC_OK();
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}
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if (!smem.IsReadable()) {
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Unused << SendConvertToEMFDone(NS_ERROR_FAILURE, smem);
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return IPC_OK();
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}
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Unused << SendConvertToEMFDone(NS_OK, smem);
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return IPC_OK();
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}
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void
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PDFiumChild::OnChannelConnected(int32_t pid)
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{
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SetOtherProcessId(pid);
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}
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void
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PDFiumChild::ActorDestroy(ActorDestroyReason why)
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{
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XRE_ShutdownChildProcess();
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}
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} // namespace widget
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} // namespace mozilla
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