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// Copyright 2020 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/dom_hooks_delegate.h"
#include <memory>
#include "extensions/renderer/bindings/api_signature.h"
#include "extensions/renderer/dispatcher.h"
#include "extensions/renderer/script_context.h"
#include "third_party/blink/public/web/web_element.h"
namespace extensions {
DOMHooksDelegate::DOMHooksDelegate() = default;
DOMHooksDelegate::~DOMHooksDelegate() = default;
APIBindingHooks::RequestResult DOMHooksDelegate::HandleRequest(
const std::string& method_name,
const APISignature* signature,
v8::Local<v8::Context> context,
std::vector<v8::Local<v8::Value>>* arguments,
const APITypeReferenceMap& refs) {
using RequestResult = APIBindingHooks::RequestResult;
v8::Isolate* isolate = context->GetIsolate();
v8::TryCatch try_catch(isolate);
APISignature::V8ParseResult parse_result =
signature->ParseArgumentsToV8(context, *arguments, refs);
if (!parse_result.succeeded()) {
if (try_catch.HasCaught()) {
try_catch.ReThrow();
return RequestResult(RequestResult::THROWN);
}
return RequestResult(RequestResult::INVALID_INVOCATION);
}
ScriptContext* script_context =
ScriptContextSet::GetContextByV8Context(context);
DCHECK(script_context);
APIBindingHooks::RequestResult result(
APIBindingHooks::RequestResult::HANDLED);
if (method_name == "dom.openOrClosedShadowRoot") {
DCHECK(parse_result.arguments.has_value());
result.return_value =
OpenOrClosedShadowRoot(script_context, *parse_result.arguments);
} else {
NOTREACHED();
}
return result;
}
v8::Local<v8::Value> DOMHooksDelegate::OpenOrClosedShadowRoot(
ScriptContext* script_context,
const std::vector<v8::Local<v8::Value>>& parsed_arguments) {
DCHECK(script_context->extension());
DCHECK(parsed_arguments[0]->IsObject());
blink::WebElement element =
blink::WebElement::FromV8Value(parsed_arguments[0]);
if (element.IsNull())
return v8::Null(script_context->isolate());
blink::WebNode shadow_root = element.OpenOrClosedShadowRoot();
if (shadow_root.IsNull())
return v8::Null(script_context->isolate());
return shadow_root.ToV8Value(script_context->v8_context()->Global(),
script_context->isolate());
}
} // namespace extensions
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