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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_SAFE_BROWSING_CONTENT_BROWSER_SAFE_BROWSING_TAB_OBSERVER_H_
#define COMPONENTS_SAFE_BROWSING_CONTENT_BROWSER_SAFE_BROWSING_TAB_OBSERVER_H_
#include <memory>
#include "components/prefs/pref_change_registrar.h"
#include "content/public/browser/web_contents_user_data.h"
namespace content {
class WebContents;
}
namespace safe_browsing {
class ClientSideDetectionHost;
class ClientSideDetectionService;
// Per-tab class to handle safe-browsing functionality.
class SafeBrowsingTabObserver
: public content::WebContentsUserData<SafeBrowsingTabObserver> {
public:
// Interface via which the embedder supplies contextual information to
// SafeBrowsingTabObserver.
class Delegate {
public:
Delegate() = default;
virtual ~Delegate() = default;
Delegate(const Delegate&) = delete;
Delegate& operator=(const Delegate&) = delete;
// Returns the PrefService that the embedder associates with
// |browser_context|.
virtual PrefService* GetPrefs(content::BrowserContext* browser_context) = 0;
// Returns the ClientSideDetectionService that the embedder associates with
// |browser_context|, if one exists. May return null.
virtual ClientSideDetectionService* GetClientSideDetectionServiceIfExists(
content::BrowserContext* browser_context) = 0;
// Returns true if the embedder-specific safe browsing service exists.
virtual bool DoesSafeBrowsingServiceExist() = 0;
// Creates a ClientSideDetectionHost instance that has been configured for
// the embedder.
virtual std::unique_ptr<ClientSideDetectionHost>
CreateClientSideDetectionHost(content::WebContents* web_contents) = 0;
};
SafeBrowsingTabObserver(const SafeBrowsingTabObserver&) = delete;
SafeBrowsingTabObserver& operator=(const SafeBrowsingTabObserver&) = delete;
~SafeBrowsingTabObserver() override;
private:
SafeBrowsingTabObserver(content::WebContents* web_contents,
std::unique_ptr<Delegate> delegate);
friend class content::WebContentsUserData<SafeBrowsingTabObserver>;
// Internal helpers ----------------------------------------------------------
// Create or destroy SafebrowsingDetectionHost as needed if the user's
// safe browsing preference has changed.
void UpdateSafebrowsingDetectionHost();
// Handles IPCs.
std::unique_ptr<ClientSideDetectionHost> safebrowsing_detection_host_;
std::unique_ptr<Delegate> delegate_;
PrefChangeRegistrar pref_change_registrar_;
WEB_CONTENTS_USER_DATA_KEY_DECL();
};
} // namespace safe_browsing
#endif // COMPONENTS_SAFE_BROWSING_CONTENT_BROWSER_SAFE_BROWSING_TAB_OBSERVER_H_
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