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// Copyright (c) 2012 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_UI_BROWSER_LIST_IMPL_H_
#define CHROME_BROWSER_UI_BROWSER_LIST_IMPL_H_
#include "base/observer_list.h"
#include "chrome/browser/ui/host_desktop.h"
class Browser;
class BrowserList;
class Profile;
namespace chrome {
class BrowserListObserver;
// Maintains a list of Browser objects present in a given HostDesktop (see
// HostDesktopType).
class BrowserListImpl {
public:
typedef std::vector<Browser*> BrowserVector;
typedef BrowserVector::iterator iterator;
typedef BrowserVector::const_iterator const_iterator;
typedef BrowserVector::const_reverse_iterator const_reverse_iterator;
static BrowserListImpl* GetInstance(HostDesktopType type);
// Adds and removes browsers from the global list. The browser object should
// be valid BEFORE these calls (for the benefit of observers), so notify and
// THEN delete the object.
void AddBrowser(Browser* browser);
void RemoveBrowser(Browser* browser);
void AddObserver(BrowserListObserver* observer);
void RemoveObserver(BrowserListObserver* observer);
// Called by Browser objects when their window is activated (focused). This
// allows us to determine what the last active Browser was.
void SetLastActive(Browser* browser);
Browser* GetLastActive();
// Closes all browsers for |profile|.
void CloseAllBrowsersWithProfile(Profile* profile);
// Browsers are added to the list before they have constructed windows,
// so the |window()| member function may return NULL.
const_iterator begin() const { return browsers_.begin(); }
const_iterator end() const { return browsers_.end(); }
bool empty() const { return browsers_.empty(); }
size_t size() const { return browsers_.size(); }
// Returns iterated access to list of open browsers ordered by when
// they were last active. The underlying data structure is a vector
// and we push_back on recent access so a reverse iterator gives the
// latest accessed browser first.
const_reverse_iterator begin_last_active() {
return last_active_browsers_.rbegin();
}
const_reverse_iterator end_last_active() {
return last_active_browsers_.rend();
}
// Returns true if at least one incognito window is open.
bool IsIncognitoWindowOpen();
// Returns true if at least one incognito window is open for |profile|.
bool IsIncognitoWindowOpenForProfile(Profile* profile);
private:
BrowserListImpl();
~BrowserListImpl();
// Helper method to remove a browser instance from a list of browsers
void RemoveBrowserFrom(Browser* browser, BrowserVector* browser_list);
ObserverList<BrowserListObserver> observers_;
BrowserVector browsers_;
BrowserVector last_active_browsers_;
// Nothing fancy, since we only have two HDTs.
static BrowserListImpl* native_instance_;
static BrowserListImpl* ash_instance_;
DISALLOW_COPY_AND_ASSIGN(BrowserListImpl);
};
} // namespace chrome
#endif // CHROME_BROWSER_UI_BROWSER_LIST_IMPL_H_
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