weblayer/browser/tab_callback_proxy.h

// Copyright 2019 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.

#ifndef WEBLAYER_BROWSER_TAB_CALLBACK_PROXY_H_
#define WEBLAYER_BROWSER_TAB_CALLBACK_PROXY_H_

#include <jni.h>

#include "base/android/scoped_java_ref.h"
#include "base/memory/raw_ptr.h"
#include "weblayer/public/tab_observer.h"

namespace weblayer {

class Tab;

// TabCallbackProxy forwards all TabObserver functions to the Java side. There
// is one TabCallbackProxy per Tab.
class TabCallbackProxy : public TabObserver {
 public:
  TabCallbackProxy(JNIEnv* env, jobject obj, Tab* tab);

  TabCallbackProxy(const TabCallbackProxy&) = delete;
  TabCallbackProxy& operator=(const TabCallbackProxy&) = delete;

  ~TabCallbackProxy() override;

  // TabObserver:
  void DisplayedUrlChanged(const GURL& url) override;
  void OnRenderProcessGone() override;
  void OnTitleUpdated(const std::u16string& title) override;

 private:
  raw_ptr<Tab> tab_;
  base::android::ScopedJavaGlobalRef<jobject> java_observer_;
};

}  // namespace weblayer

#endif  // WEBLAYER_BROWSER_TAB_CALLBACK_PROXY_H_