| // Copyright 2017 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/service/public/cpp/pdf_compositor_client.h" |
| |
| #include <utility> |
| |
| #include "mojo/public/cpp/system/platform_handle.h" |
| |
| namespace printing { |
| |
| namespace { |
| |
| // Helper callback which owns an PdfCompositorPtr until invoked. This keeps the |
| // PdfCompositor pipe open just long enough to dispatch a reply, at which point |
| // the reply is forwarded to the wrapped |callback|. |
| void OnCompositePdf( |
| printing::mojom::PdfCompositorPtr compositor, |
| printing::mojom::PdfCompositor::CompositePdfCallback callback, |
| scoped_refptr<base::SequencedTaskRunner> task_runner, |
| mojo::ScopedSharedBufferHandle pdf_handle) { |
| task_runner->PostTask(FROM_HERE, base::BindOnce(std::move(callback), |
| base::Passed(&pdf_handle))); |
| } |
| |
| } // namespace |
| |
| PdfCompositorClient::PdfCompositorClient() : compositor_(nullptr) {} |
| |
| PdfCompositorClient::~PdfCompositorClient() {} |
| |
| void PdfCompositorClient::Connect(service_manager::Connector* connector) { |
| DCHECK(!compositor_.is_bound()); |
| connector->BindInterface(mojom::kServiceName, &compositor_); |
| } |
| |
| void PdfCompositorClient::Composite( |
| service_manager::Connector* connector, |
| base::SharedMemoryHandle handle, |
| size_t data_size, |
| mojom::PdfCompositor::CompositePdfCallback callback, |
| scoped_refptr<base::SequencedTaskRunner> callback_task_runner) { |
| DCHECK(data_size); |
| |
| if (!compositor_) |
| Connect(connector); |
| |
| mojo::ScopedSharedBufferHandle buffer_handle = |
| mojo::WrapSharedMemoryHandle(handle, data_size, true); |
| |
| compositor_->CompositePdf( |
| std::move(buffer_handle), |
| base::BindOnce(&OnCompositePdf, base::Passed(&compositor_), |
| std::move(callback), callback_task_runner)); |
| } |
| |
| } // namespace printing |