chrome/browser/browser_switcher/browser_switcher_service_win.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 CHROME_BROWSER_BROWSER_SWITCHER_BROWSER_SWITCHER_SERVICE_WIN_H_
#define CHROME_BROWSER_BROWSER_SWITCHER_BROWSER_SWITCHER_SERVICE_WIN_H_

#include <memory>
#include <string>

#include "base/optional.h"
#include "chrome/browser/browser_switcher/browser_switcher_service.h"

namespace browser_switcher {

// Windows-specific extension of BrowserSwitcherService.
class BrowserSwitcherServiceWin : public BrowserSwitcherService {
 public:
  explicit BrowserSwitcherServiceWin(Profile* profile);
  ~BrowserSwitcherServiceWin() override;

  static void SetIeemSitelistUrlForTesting(const std::string& url);

  // BrowserSwitcherService:
  std::vector<RulesetSource> GetRulesetSources() override;

  void LoadRulesFromPrefs() override;

 protected:
  // BrowserSwitcherService:
  void OnAllRulesetsParsed() override;

  void OnBrowserSwitcherPrefsChanged(
      BrowserSwitcherPrefs* prefs,
      const std::vector<std::string>& changed_prefs) override;

 private:
  // Returns the URL to fetch to get Internet Explorer's Enterprise Mode
  // sitelist, based on policy. Returns an empty (invalid) URL if IE's SiteList
  // policy is unset, or if |use_ie_sitelist| is false.
  GURL GetIeemSitelistUrl();

  void OnIeemSitelistParsed(ParsedXml xml);

  // Save the current prefs' state to the "cache.dat" file, to be read & used by
  // the Internet Explorer BHO. This call does not block, it only posts a task
  // to a worker thread.
  void SavePrefsToFile();
  // Delete the "cache.dat" file created by |SavePrefsToFile()|. This call does
  // not block, it only posts a task to a worker thread.
  void DeletePrefsFile() const;
  // Delete the "sitelistcache.dat" file that might be left from the LBS
  // extension, or from a previous Chrome version. Called during initialization.
  void DeleteSitelistCacheFile() const;

  scoped_refptr<base::SequencedTaskRunner> sequenced_task_runner_;

  base::WeakPtrFactory<BrowserSwitcherServiceWin> weak_ptr_factory_{this};

  DISALLOW_IMPLICIT_CONSTRUCTORS(BrowserSwitcherServiceWin);
};

}  // namespace browser_switcher

#endif  // CHROME_BROWSER_BROWSER_SWITCHER_BROWSER_SWITCHER_SERVICE_WIN_H_