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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/renderer/extensions/api/printing_hooks_delegate.h"
#include "extensions/renderer/bindings/api_signature.h"
#include "extensions/renderer/v8_helpers.h"
#include "gin/dictionary.h"
#include "third_party/blink/public/web/web_blob.h"
#include "v8/include/v8-primitive.h"
namespace extensions {
namespace {
constexpr char kSubmitJobMethod[] = "printing.submitJob";
constexpr char kJobKey[] = "job";
constexpr char kDocumentKey[] = "document";
constexpr char kDocumentBlobUuidKey[] = "documentBlobUuid";
} // namespace
using RequestResult = APIBindingHooks::RequestResult;
PrintingHooksDelegate::PrintingHooksDelegate() = default;
PrintingHooksDelegate::~PrintingHooksDelegate() = default;
RequestResult PrintingHooksDelegate::HandleRequest(
const std::string& method_name,
const APISignature* signature,
v8::Local<v8::Context> context,
v8::LocalVector<v8::Value>* arguments,
const APITypeReferenceMap& refs) {
// Error checks.
// Ensure we would like to call the SubmitJob function.
if (method_name != kSubmitJobMethod)
return RequestResult(RequestResult::NOT_HANDLED);
// Ensure arguments are successfully parsed and converted.
APISignature::V8ParseResult parse_result =
signature->ParseArgumentsToV8(context, *arguments, refs);
if (!parse_result.succeeded()) {
RequestResult result(RequestResult::INVALID_INVOCATION);
result.error = std::move(parse_result.error.value());
return result;
}
return HandleSubmitJob(context->GetIsolate(), arguments);
}
RequestResult PrintingHooksDelegate::HandleSubmitJob(
v8::Isolate* isolate,
v8::LocalVector<v8::Value>* arguments) {
// If being called without the callback parameter (i.e. a promise based API
// call) the bindings require the final argument to be filled out with a null
// argument instead.
// TODO(tjudkins): It would be good to fix the logic to not require this. For
// more details see the comment in APIBindingJSUtil::SendRequest.
if (arguments->size() == 1u) {
arguments->push_back(v8::Null(isolate));
}
DCHECK_EQ(2u, arguments->size());
DCHECK((*arguments)[0]->IsObject());
v8::Local<v8::Object> v8_submit_job_request =
(*arguments)[0].As<v8::Object>();
gin::Dictionary submit_job_request_dict(isolate, v8_submit_job_request);
v8::Local<v8::Value> v8_print_job;
if (!submit_job_request_dict.Get(kJobKey, &v8_print_job)) {
NOTREACHED();
}
DCHECK(v8_print_job->IsObject());
gin::Dictionary print_job_dict(isolate, v8_print_job.As<v8::Object>());
v8::Local<v8::Value> v8_document;
if (!print_job_dict.Get(kDocumentKey, &v8_document)) {
NOTREACHED();
}
DCHECK(!v8_document.IsEmpty());
DCHECK(!v8_document->IsNull());
DCHECK(!v8_document->IsUndefined());
blink::WebBlob document_blob =
blink::WebBlob::FromV8Value(isolate, v8_document);
v8::Local<v8::String> document_blob_uuid;
v8_helpers::ToV8String(isolate, document_blob.Uuid().Utf8().data(),
&document_blob_uuid);
if (!submit_job_request_dict.Set(kDocumentBlobUuidKey,
document_blob_uuid.As<v8::Value>())) {
NOTREACHED() << "Unexpected exception: couldn't update arguments";
}
return RequestResult(RequestResult::ARGUMENTS_UPDATED);
}
} // namespace extensions
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