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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_RENDERER_HOST_SUBFRAME_HISTORY_NAVIGATION_THROTTLE_H_
#define CONTENT_BROWSER_RENDERER_HOST_SUBFRAME_HISTORY_NAVIGATION_THROTTLE_H_
#include <memory>
#include "base/memory/weak_ptr.h"
#include "content/public/browser/navigation_throttle.h"
namespace content {
// Defers subframe history navigations while waiting for a main-frame
// same-document history navigation. If a main-frame same-document navigation is
// cancelled by the web-exposed Navigation API, all associated subframe history
// navigations should also be cancelled.
class SubframeHistoryNavigationThrottle final : public NavigationThrottle {
public:
explicit SubframeHistoryNavigationThrottle(
NavigationHandle* navigation_handle);
SubframeHistoryNavigationThrottle(const SubframeHistoryNavigationThrottle&) =
delete;
SubframeHistoryNavigationThrottle& operator=(
const SubframeHistoryNavigationThrottle&) = delete;
~SubframeHistoryNavigationThrottle() final;
// NavigationThrottle method:
ThrottleCheckResult WillStartRequest() final;
ThrottleCheckResult WillCommitWithoutUrlLoader() final;
const char* GetNameForLogging() final;
void Resume() final;
void Cancel();
static std::unique_ptr<NavigationThrottle> MaybeCreateThrottleFor(
NavigationHandle* navigation_handle);
private:
enum class State {
// The initial state.
kRunning,
// This throttle returned DEFER and hasn't call Resume yet.
kDeferred,
// This throttle received Resume signal, and should not DEFER anymore.
kRunningAfterResumeSignal,
};
State state_= State::kRunning;
base::WeakPtrFactory<SubframeHistoryNavigationThrottle> weak_factory_{this};
};
} // namespace content
#endif // CONTENT_BROWSER_RENDERER_HOST_SUBFRAME_HISTORY_NAVIGATION_THROTTLE_H_
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