ios/clean/chrome/browser/model/browser_list.h

// Copyright 2017 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 IOS_CLEAN_CHROME_BROWSER_MODEL_BROWSER_LIST_H_
#define IOS_CLEAN_CHROME_BROWSER_MODEL_BROWSER_LIST_H_

#include <vector>

#include "base/macros.h"
#include "base/supports_user_data.h"
#include "ios/clean/chrome/browser/model/browser.h"

namespace ios {
class ChromeBrowserState;
}

// BrowserList attaches Browsers instance to a ChromeBrowserState.
class BrowserList : public base::SupportsUserData::Data {
 public:
  explicit BrowserList(ios::ChromeBrowserState* browser_state);
  ~BrowserList() override;

  static BrowserList* FromBrowserState(ios::ChromeBrowserState* browser_state);

  // Returns the number of open Browsers.
  int GetBrowserCount() const;

  // Returns whether the specified index is valid.
  int ContainsIndex(int index) const;

  // Returns the Browser at the specified index.
  Browser* GetBrowserAtIndex(int index) const;

  // Creates and returns a new Browser instance.
  Browser* CreateNewBrowser();

  // Closes the Browser at the specified index.
  void CloseBrowserAtIndex(int index);

 private:
  std::vector<std::unique_ptr<Browser>> browsers_;
  ios::ChromeBrowserState* browser_state_;

  DISALLOW_COPY_AND_ASSIGN(BrowserList);
};

#endif  // IOS_CLEAN_CHROME_BROWSER_MODEL_BROWSER_LIST_H_