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// Copyright 2015 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/supervised_user_error_page/gin_wrapper.h"
#include "base/strings/utf_string_conversions.h"
#include "content/public/renderer/render_frame.h"
#include "gin/handle.h"
#include "gin/object_template_builder.h"
#include "third_party/blink/public/web/blink.h"
#include "third_party/blink/public/web/web_local_frame.h"
using web_restrictions::mojom::WebRestrictionsPtr;
namespace supervised_user_error_page {
GinWrapper::Loader::Loader(
content::RenderFrame* render_frame,
const std::string& url,
const web_restrictions::mojom::WebRestrictionsPtr& web_restrictions_service)
: content::RenderFrameObserver(render_frame),
url_(url),
web_restrictions_service_(web_restrictions_service) {}
void GinWrapper::Loader::DidClearWindowObject() {
InstallGinWrapper();
// Once the gin wrapper has been installed we don't need to observe the
// render frame. Delete the loader so that the wrapper isn't re-installed when
// something else is loaded into the frame.
delete this;
}
void GinWrapper::Loader::InstallGinWrapper() {
v8::Isolate* isolate = blink::MainThreadIsolate();
v8::HandleScope handle_scope(isolate);
v8::Local<v8::Context> context =
render_frame()->GetWebFrame()->MainWorldScriptContext();
if (context.IsEmpty())
return;
v8::Context::Scope context_scope(context);
gin::Handle<GinWrapper> controller = gin::CreateHandle(
isolate, new GinWrapper(render_frame(), url_, web_restrictions_service_));
if (controller.IsEmpty())
return;
v8::Local<v8::Object> global = context->Global();
global->Set(gin::StringToV8(isolate, "webRestrictions"), controller.ToV8());
}
void GinWrapper::Loader::OnDestruct() {
delete this;
}
gin::WrapperInfo GinWrapper::kWrapperInfo = {gin::kEmbedderNativeGin};
// static
void GinWrapper::InstallWhenFrameReady(
content::RenderFrame* render_frame,
const std::string& url,
const WebRestrictionsPtr& web_restrictions_service) {
new Loader(render_frame, url, web_restrictions_service);
}
GinWrapper::GinWrapper(content::RenderFrame* render_frame,
const std::string& url,
const WebRestrictionsPtr& web_restrictions_service)
: url_(url),
web_restrictions_service_(web_restrictions_service),
weak_ptr_factory_(this) {}
GinWrapper::~GinWrapper() {}
bool GinWrapper::RequestPermission(
v8::Local<v8::Function> setRequestStatusCallback) {
setRequestStatusCallback_.Reset(blink::MainThreadIsolate(),
setRequestStatusCallback);
web_restrictions_service_->RequestPermission(
url_, base::Bind(&GinWrapper::OnAccessRequestAdded,
weak_ptr_factory_.GetWeakPtr()));
return true;
}
void GinWrapper::OnAccessRequestAdded(bool success) {
if (setRequestStatusCallback_.IsEmpty()) {
return;
}
v8::Isolate* isolate = blink::MainThreadIsolate();
v8::Local<v8::Value> args = v8::Boolean::New(isolate, success);
v8::HandleScope handle_scope(isolate);
v8::Local<v8::Function> callback =
v8::Local<v8::Function>::New(isolate, setRequestStatusCallback_);
v8::Local<v8::Context> context = callback->CreationContext();
if (context.IsEmpty())
return;
v8::Context::Scope context_scope(context);
v8::MicrotasksScope microtasks(isolate,
v8::MicrotasksScope::kDoNotRunMicrotasks);
callback->Call(context->Global(), 1, &args);
}
gin::ObjectTemplateBuilder GinWrapper::GetObjectTemplateBuilder(
v8::Isolate* isolate) {
return gin::Wrappable<GinWrapper>::GetObjectTemplateBuilder(isolate)
.SetMethod("requestPermission", &GinWrapper::RequestPermission);
}
} // namespace web_restrictions
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