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- // Copyright 2014 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 "extensions/renderer/blob_native_handler.h"
- #include "base/bind.h"
- #include "extensions/renderer/script_context.h"
- #include "third_party/blink/public/platform/web_url.h"
- #include "third_party/blink/public/web/web_blob.h"
- #include "v8/include/v8-function-callback.h"
- #include "v8/include/v8-primitive.h"
- namespace {
- // Expects a single Blob argument. Returns the Blob's UUID.
- void GetBlobUuid(const v8::FunctionCallbackInfo<v8::Value>& args) {
- CHECK_EQ(1, args.Length());
- blink::WebBlob blob = blink::WebBlob::FromV8Value(args[0]);
- args.GetReturnValue().Set(
- v8::String::NewFromUtf8(args.GetIsolate(), blob.Uuid().Utf8().data())
- .ToLocalChecked());
- }
- } // namespace
- namespace extensions {
- BlobNativeHandler::BlobNativeHandler(ScriptContext* context)
- : ObjectBackedNativeHandler(context) {}
- void BlobNativeHandler::AddRoutes() {
- RouteHandlerFunction("GetBlobUuid", base::BindRepeating(&GetBlobUuid));
- RouteHandlerFunction(
- "TakeBrowserProcessBlob",
- base::BindRepeating(&BlobNativeHandler::TakeBrowserProcessBlob,
- base::Unretained(this)));
- }
- // Take ownership of a Blob created on the browser process. Expects the Blob's
- // UUID, type, and size as arguments. Returns the Blob we just took to
- // Javascript. The Blob reference in the browser process is dropped through
- // a separate flow to avoid leaking Blobs if the script context is destroyed.
- void BlobNativeHandler::TakeBrowserProcessBlob(
- const v8::FunctionCallbackInfo<v8::Value>& args) {
- CHECK_EQ(3, args.Length());
- CHECK(args[0]->IsString());
- CHECK(args[1]->IsString());
- CHECK(args[2]->IsInt32());
- v8::Isolate* isolate = args.GetIsolate();
- std::string uuid(*v8::String::Utf8Value(isolate, args[0]));
- std::string type(*v8::String::Utf8Value(isolate, args[1]));
- blink::WebBlob blob = blink::WebBlob::CreateFromUUID(
- blink::WebString::FromUTF8(uuid), blink::WebString::FromUTF8(type),
- args[2].As<v8::Int32>()->Value());
- args.GetReturnValue().Set(
- blob.ToV8Value(context()->v8_context()->Global(), isolate));
- }
- } // namespace extensions
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