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// Copyright 2014 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 CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_INTERSTITIAL_H_
#define CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_INTERSTITIAL_H_
#include <string>
#include "base/callback.h"
#include "base/memory/weak_ptr.h"
#include "chrome/browser/supervised_user/supervised_user_service_observer.h"
#include "chrome/browser/supervised_user/supervised_user_url_filter.h"
#include "content/public/browser/interstitial_page_delegate.h"
#include "url/gurl.h"
namespace content {
class InterstitialPage;
class WebContents;
}
class Profile;
// Delegate for an interstitial page when a page is blocked for a supervised
// user because it is on a blacklist (in "allow everything" mode) or not on any
// whitelist (in "allow only specified sites" mode).
class SupervisedUserInterstitial : public content::InterstitialPageDelegate,
public SupervisedUserServiceObserver {
public:
// Interstitial type, used for testing.
static content::InterstitialPageDelegate::TypeID kTypeForTesting;
static void Show(content::WebContents* web_contents,
const GURL& url,
SupervisedUserURLFilter::FilteringBehaviorReason reason,
const base::Callback<void(bool)>& callback);
private:
SupervisedUserInterstitial(
content::WebContents* web_contents,
const GURL& url,
SupervisedUserURLFilter::FilteringBehaviorReason reason,
const base::Callback<void(bool)>& callback);
~SupervisedUserInterstitial() override;
bool Init();
// InterstitialPageDelegate implementation.
std::string GetHTMLContents() override;
void CommandReceived(const std::string& command) override;
void OnProceed() override;
void OnDontProceed() override;
content::InterstitialPageDelegate::TypeID GetTypeForTesting() const override;
// SupervisedUserServiceObserver implementation.
void OnURLFilterChanged() override;
// TODO(treib): Also listen to OnCustodianInfoChanged and update as required.
void OnAccessRequestAdded(bool success);
// Returns whether we should now proceed on a previously-blocked URL.
// Called initially before the interstitial is shown (to catch race
// conditions), or when the URL filtering prefs change. Note that this does
// not include the asynchronous online checks, so if those are enabled, then
// the return value indicates only "allow" or "don't know".
bool ShouldProceed();
void DispatchContinueRequest(bool continue_request);
// Owns the interstitial, which owns us.
content::WebContents* web_contents_;
Profile* profile_;
content::InterstitialPage* interstitial_page_; // Owns us.
GURL url_;
SupervisedUserURLFilter::FilteringBehaviorReason reason_;
base::Callback<void(bool)> callback_;
base::WeakPtrFactory<SupervisedUserInterstitial> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(SupervisedUserInterstitial);
};
#endif // CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_INTERSTITIAL_H_
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