274 lines
9.2 KiB
C++
274 lines
9.2 KiB
C++
// Copyright (c) 2018 GitHub, Inc.
|
|
// Use of this source code is governed by the MIT license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#include "shell/browser/printing/print_preview_message_handler.h"
|
|
|
|
#include <memory>
|
|
#include <utility>
|
|
|
|
#include "base/bind.h"
|
|
#include "base/memory/read_only_shared_memory_region.h"
|
|
#include "base/memory/ref_counted.h"
|
|
#include "base/memory/ref_counted_memory.h"
|
|
#include "base/task/post_task.h"
|
|
#include "chrome/browser/browser_process.h"
|
|
#include "chrome/browser/printing/print_job_manager.h"
|
|
#include "chrome/browser/printing/printer_query.h"
|
|
#include "components/printing/browser/print_composite_client.h"
|
|
#include "components/printing/browser/print_manager_utils.h"
|
|
#include "components/services/print_compositor/public/cpp/print_service_mojo_types.h"
|
|
#include "content/public/browser/browser_task_traits.h"
|
|
#include "content/public/browser/browser_thread.h"
|
|
#include "content/public/browser/render_frame_host.h"
|
|
#include "content/public/browser/web_contents.h"
|
|
#include "content/public/browser/web_contents_user_data.h"
|
|
#include "mojo/public/cpp/bindings/callback_helpers.h"
|
|
#include "third_party/blink/public/common/associated_interfaces/associated_interface_provider.h"
|
|
|
|
#include "shell/common/node_includes.h"
|
|
|
|
using content::BrowserThread;
|
|
|
|
namespace electron {
|
|
|
|
namespace {
|
|
|
|
void StopWorker(int document_cookie) {
|
|
if (document_cookie <= 0)
|
|
return;
|
|
scoped_refptr<printing::PrintQueriesQueue> queue =
|
|
g_browser_process->print_job_manager()->queue();
|
|
std::unique_ptr<printing::PrinterQuery> printer_query =
|
|
queue->PopPrinterQuery(document_cookie);
|
|
if (printer_query.get()) {
|
|
base::PostTask(FROM_HERE, {BrowserThread::IO},
|
|
base::BindOnce(&printing::PrinterQuery::StopWorker,
|
|
std::move(printer_query)));
|
|
}
|
|
}
|
|
|
|
} // namespace
|
|
|
|
PrintPreviewMessageHandler::PrintPreviewMessageHandler(
|
|
content::WebContents* web_contents)
|
|
: content::WebContentsUserData<PrintPreviewMessageHandler>(*web_contents),
|
|
web_contents_(web_contents) {
|
|
DCHECK(web_contents);
|
|
}
|
|
|
|
PrintPreviewMessageHandler::~PrintPreviewMessageHandler() = default;
|
|
|
|
void PrintPreviewMessageHandler::MetafileReadyForPrinting(
|
|
printing::mojom::DidPreviewDocumentParamsPtr params,
|
|
int32_t request_id) {
|
|
// Always try to stop the worker.
|
|
StopWorker(params->document_cookie);
|
|
|
|
if (params->expected_pages_count == 0) {
|
|
RejectPromise(request_id);
|
|
return;
|
|
}
|
|
|
|
const base::ReadOnlySharedMemoryRegion& metafile =
|
|
params->content->metafile_data_region;
|
|
|
|
if (printing::IsOopifEnabled()) {
|
|
auto* client =
|
|
printing::PrintCompositeClient::FromWebContents(web_contents_);
|
|
DCHECK(client);
|
|
|
|
auto callback = base::BindOnce(
|
|
&PrintPreviewMessageHandler::OnCompositeDocumentToPdfDone,
|
|
weak_ptr_factory_.GetWeakPtr(), request_id);
|
|
|
|
client->DoCompleteDocumentToPdf(
|
|
params->document_cookie, params->expected_pages_count,
|
|
mojo::WrapCallbackWithDefaultInvokeIfNotRun(
|
|
std::move(callback),
|
|
printing::mojom::PrintCompositor::Status::kCompositingFailure,
|
|
base::ReadOnlySharedMemoryRegion()));
|
|
} else {
|
|
ResolvePromise(
|
|
request_id,
|
|
base::RefCountedSharedMemoryMapping::CreateFromWholeRegion(metafile));
|
|
}
|
|
}
|
|
|
|
void PrintPreviewMessageHandler::OnPrepareForDocumentToPdfDone(
|
|
int32_t request_id,
|
|
printing::mojom::PrintCompositor::Status status) {
|
|
DCHECK_CURRENTLY_ON(BrowserThread::UI);
|
|
if (status != printing::mojom::PrintCompositor::Status::kSuccess) {
|
|
LOG(ERROR) << "Preparing document for pdf failed with error " << status;
|
|
}
|
|
}
|
|
|
|
void PrintPreviewMessageHandler::DidPrepareDocumentForPreview(
|
|
int32_t document_cookie,
|
|
int32_t request_id) {
|
|
if (printing::IsOopifEnabled()) {
|
|
auto* client =
|
|
printing::PrintCompositeClient::FromWebContents(web_contents_);
|
|
DCHECK(client);
|
|
|
|
if (client->GetIsDocumentConcurrentlyComposited(document_cookie))
|
|
return;
|
|
|
|
auto* focused_frame = web_contents_->GetFocusedFrame();
|
|
auto* rfh = focused_frame && focused_frame->HasSelection()
|
|
? focused_frame
|
|
: web_contents_->GetMainFrame();
|
|
|
|
client->DoPrepareForDocumentToPdf(
|
|
document_cookie, rfh,
|
|
mojo::WrapCallbackWithDefaultInvokeIfNotRun(
|
|
base::BindOnce(
|
|
&PrintPreviewMessageHandler::OnPrepareForDocumentToPdfDone,
|
|
weak_ptr_factory_.GetWeakPtr(), request_id),
|
|
printing::mojom::PrintCompositor::Status::kCompositingFailure));
|
|
}
|
|
}
|
|
|
|
void PrintPreviewMessageHandler::OnCompositeDocumentToPdfDone(
|
|
int32_t request_id,
|
|
printing::mojom::PrintCompositor::Status status,
|
|
base::ReadOnlySharedMemoryRegion region) {
|
|
DCHECK_CURRENTLY_ON(BrowserThread::UI);
|
|
|
|
if (status != printing::mojom::PrintCompositor::Status::kSuccess) {
|
|
LOG(ERROR) << "Compositing pdf failed with error " << status;
|
|
RejectPromise(request_id);
|
|
return;
|
|
}
|
|
|
|
ResolvePromise(
|
|
request_id,
|
|
base::RefCountedSharedMemoryMapping::CreateFromWholeRegion(region));
|
|
}
|
|
|
|
void PrintPreviewMessageHandler::OnCompositePdfPageDone(
|
|
int page_number,
|
|
int document_cookie,
|
|
int32_t request_id,
|
|
printing::mojom::PrintCompositor::Status status,
|
|
base::ReadOnlySharedMemoryRegion region) {
|
|
DCHECK_CURRENTLY_ON(BrowserThread::UI);
|
|
if (status != printing::mojom::PrintCompositor::Status::kSuccess) {
|
|
LOG(ERROR) << "Compositing pdf failed on page: " << page_number
|
|
<< " with error: " << status;
|
|
}
|
|
}
|
|
|
|
void PrintPreviewMessageHandler::DidPreviewPage(
|
|
printing::mojom::DidPreviewPageParamsPtr params,
|
|
int32_t request_id) {
|
|
int page_number = params->page_number;
|
|
const printing::mojom::DidPrintContentParams& content = *(params->content);
|
|
|
|
if (page_number < printing::FIRST_PAGE_INDEX ||
|
|
!content.metafile_data_region.IsValid()) {
|
|
RejectPromise(request_id);
|
|
return;
|
|
}
|
|
|
|
if (printing::IsOopifEnabled()) {
|
|
auto* client =
|
|
printing::PrintCompositeClient::FromWebContents(web_contents_);
|
|
DCHECK(client);
|
|
|
|
auto* focused_frame = web_contents_->GetFocusedFrame();
|
|
auto* rfh = focused_frame && focused_frame->HasSelection()
|
|
? focused_frame
|
|
: web_contents_->GetMainFrame();
|
|
|
|
// Use utility process to convert skia metafile to pdf.
|
|
client->DoCompositePageToPdf(
|
|
params->document_cookie, rfh, content,
|
|
mojo::WrapCallbackWithDefaultInvokeIfNotRun(
|
|
base::BindOnce(&PrintPreviewMessageHandler::OnCompositePdfPageDone,
|
|
weak_ptr_factory_.GetWeakPtr(), page_number,
|
|
params->document_cookie, request_id),
|
|
printing::mojom::PrintCompositor::Status::kCompositingFailure,
|
|
base::ReadOnlySharedMemoryRegion()));
|
|
}
|
|
}
|
|
|
|
void PrintPreviewMessageHandler::PrintPreviewFailed(int32_t document_cookie,
|
|
int32_t request_id) {
|
|
StopWorker(document_cookie);
|
|
|
|
RejectPromise(request_id);
|
|
}
|
|
|
|
void PrintPreviewMessageHandler::PrintPreviewCancelled(int32_t document_cookie,
|
|
int32_t request_id) {
|
|
StopWorker(document_cookie);
|
|
|
|
RejectPromise(request_id);
|
|
}
|
|
|
|
void PrintPreviewMessageHandler::PrintToPDF(
|
|
base::DictionaryValue options,
|
|
gin_helper::Promise<v8::Local<v8::Value>> promise) {
|
|
int request_id;
|
|
options.GetInteger(printing::kPreviewRequestID, &request_id);
|
|
promise_map_.emplace(request_id, std::move(promise));
|
|
|
|
auto* focused_frame = web_contents_->GetFocusedFrame();
|
|
auto* rfh = focused_frame && focused_frame->HasSelection()
|
|
? focused_frame
|
|
: web_contents_->GetMainFrame();
|
|
|
|
if (!print_render_frame_.is_bound()) {
|
|
rfh->GetRemoteAssociatedInterfaces()->GetInterface(&print_render_frame_);
|
|
}
|
|
if (!receiver_.is_bound()) {
|
|
print_render_frame_->SetPrintPreviewUI(
|
|
receiver_.BindNewEndpointAndPassRemote());
|
|
}
|
|
print_render_frame_->PrintPreview(options.Clone());
|
|
}
|
|
|
|
gin_helper::Promise<v8::Local<v8::Value>>
|
|
PrintPreviewMessageHandler::GetPromise(int request_id) {
|
|
auto it = promise_map_.find(request_id);
|
|
DCHECK(it != promise_map_.end());
|
|
|
|
gin_helper::Promise<v8::Local<v8::Value>> promise = std::move(it->second);
|
|
promise_map_.erase(it);
|
|
|
|
return promise;
|
|
}
|
|
|
|
void PrintPreviewMessageHandler::ResolvePromise(
|
|
int request_id,
|
|
scoped_refptr<base::RefCountedMemory> data_bytes) {
|
|
DCHECK_CURRENTLY_ON(BrowserThread::UI);
|
|
|
|
gin_helper::Promise<v8::Local<v8::Value>> promise = GetPromise(request_id);
|
|
|
|
v8::Isolate* isolate = promise.isolate();
|
|
v8::HandleScope handle_scope(isolate);
|
|
v8::Context::Scope context_scope(
|
|
v8::Local<v8::Context>::New(isolate, promise.GetContext()));
|
|
|
|
v8::Local<v8::Value> buffer =
|
|
node::Buffer::Copy(isolate,
|
|
reinterpret_cast<const char*>(data_bytes->front()),
|
|
data_bytes->size())
|
|
.ToLocalChecked();
|
|
|
|
promise.Resolve(buffer);
|
|
}
|
|
|
|
void PrintPreviewMessageHandler::RejectPromise(int request_id) {
|
|
DCHECK_CURRENTLY_ON(BrowserThread::UI);
|
|
|
|
gin_helper::Promise<v8::Local<v8::Value>> promise = GetPromise(request_id);
|
|
promise.RejectWithErrorMessage("Failed to generate PDF");
|
|
}
|
|
|
|
WEB_CONTENTS_USER_DATA_KEY_IMPL(PrintPreviewMessageHandler);
|
|
|
|
} // namespace electron
|