android_webview/renderer/aw_render_frame_observer.h

// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef ANDROID_WEBVIEW_RENDERER_AW_RENDER_FRAME_OBSERVER_H_
#define ANDROID_WEBVIEW_RENDERER_AW_RENDER_FRAME_OBSERVER_H_

#include <optional>

#include "base/threading/platform_thread.h"
#include "base/timer/timer.h"
#include "content/public/renderer/render_frame_observer.h"

namespace blink {
class WebDocumentLoader;
}

namespace android_webview {

class AwRenderFrameObserver : public content::RenderFrameObserver {
 public:
  explicit AwRenderFrameObserver(content::RenderFrame* render_frame);
  ~AwRenderFrameObserver() override;

 private:
  // RenderFrameObserver implementation.
  void DidStartNavigation(
      const GURL& url,
      std::optional<blink::WebNavigationType> navigation_type) override;
  void ReadyToCommitNavigation(
      blink::WebDocumentLoader* document_loader) override;
  void DidDispatchDOMContentLoadedEvent() override;
  void OnDestruct() override;

  bool IsPrerendering() const;
  void ResetPriority();

  // Holds the thread type lease during navigation.
  std::optional<base::PlatformThread::RaiseThreadTypeLease>
      navigation_priority_lease_;
  base::OneShotTimer reset_priority_timer_;
};

}  // namespace android_webview

#endif  // ANDROID_WEBVIEW_RENDERER_AW_RENDER_FRAME_OBSERVER_H_