Web restrictions component.

components/web_restrictions/renderer/web_restrictions_gin_wrapper.cc

+// 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/web_restrictions/renderer/web_restrictions_gin_wrapper.h"
+
+#include "content/public/renderer/render_frame.h"
+#include "gin/handle.h"
+#include "gin/object_template_builder.h"
+#include "third_party/WebKit/public/web/WebKit.h"
+#include "third_party/WebKit/public/web/WebLocalFrame.h"
+
+namespace web_restrictions {
+
+gin::WrapperInfo WebRestrictionsGinWrapper::kWrapperInfo = {
+    gin::kEmbedderNativeGin};
+
+// static
+void WebRestrictionsGinWrapper::Install(content::RenderFrame* render_frame) {
+  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<WebRestrictionsGinWrapper> controller =
+      gin::CreateHandle(isolate, new WebRestrictionsGinWrapper(render_frame));
+  if (controller.IsEmpty())
+    return;
+  v8::Local<v8::Object> global = context->Global();
+  global->Set(gin::StringToV8(isolate, "webRestriction"), controller.ToV8());
+}
+
+WebRestrictionsGinWrapper::WebRestrictionsGinWrapper(
+    content::RenderFrame* render_frame)
+    : content::RenderFrameObserver(render_frame) {}
+
+WebRestrictionsGinWrapper::~WebRestrictionsGinWrapper() {}
+
+bool WebRestrictionsGinWrapper::RequestPermission() {
+  if (!render_frame())
+    return false;
+  render_frame()->GetWebFrame()->reload();
+  return true;
+}
+
+void WebRestrictionsGinWrapper::OnDestruct() {
+  // Do nothing. Overrides version that deletes RenderFrameObserver.
+}
+
+gin::ObjectTemplateBuilder WebRestrictionsGinWrapper::GetObjectTemplateBuilder(
+    v8::Isolate* isolate) {
+  return gin::Wrappable<WebRestrictionsGinWrapper>::GetObjectTemplateBuilder(
+             isolate)
+      .SetMethod("requestPermission",
+                 &WebRestrictionsGinWrapper::RequestPermission);
+}
+
+}  // namespace web_restrictions