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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef EXTENSIONS_RENDERER_RENDER_FRAME_OBSERVER_NATIVES_H_
#define EXTENSIONS_RENDERER_RENDER_FRAME_OBSERVER_NATIVES_H_
#include "base/memory/weak_ptr.h"
#include "extensions/renderer/object_backed_native_handler.h"
#include "v8/include/v8-forward.h"
#include "v8/include/v8-persistent-handle.h"
namespace extensions {
class ScriptContext;
// Native functions for JS to run callbacks upon RenderFrame events.
class RenderFrameObserverNatives : public ObjectBackedNativeHandler {
public:
explicit RenderFrameObserverNatives(ScriptContext* context);
RenderFrameObserverNatives(const RenderFrameObserverNatives&) = delete;
RenderFrameObserverNatives& operator=(const RenderFrameObserverNatives&) =
delete;
~RenderFrameObserverNatives() override;
// ObjectBackedNativeHandler:
void AddRoutes() override;
private:
void Invalidate() override;
// Runs a callback upon creation of new document element inside a render frame
// (document.documentElement).
void OnDocumentElementCreated(
const v8::FunctionCallbackInfo<v8::Value>& args);
void InvokeCallback(v8::Global<v8::Function> callback, bool succeeded);
base::WeakPtrFactory<RenderFrameObserverNatives> weak_ptr_factory_{this};
};
} // namespace extensions
#endif // EXTENSIONS_RENDERER_RENDER_FRAME_OBSERVER_NATIVES_H_
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