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// Copyright 2013 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_ASH_LAUNCHER_BROWSER_STATUS_MONITOR_H_
#define CHROME_BROWSER_UI_ASH_LAUNCHER_BROWSER_STATUS_MONITOR_H_
#include <map>
#include <string>
#include "ash/shelf/scoped_observer_with_duplicated_sources.h"
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/scoped_observer.h"
#include "chrome/browser/ui/ash/launcher/chrome_launcher_controller.h"
#include "chrome/browser/ui/browser_list_observer.h"
#include "chrome/browser/ui/tabs/tab_strip_model_observer.h"
#include "ui/aura/window_observer.h"
#include "ui/gfx/display_observer.h"
#include "ui/wm/public/activation_change_observer.h"
namespace aura {
class Window;
namespace client {
class ActivationClient;
}
} // namespace aura
class Browser;
// BrowserStatusMonitor monitors creation/deletion of Browser and its
// TabStripModel to keep the launcher representation up to date as the
// active tab changes.
class BrowserStatusMonitor : public aura::client::ActivationChangeObserver,
public aura::WindowObserver,
public chrome::BrowserListObserver,
public gfx::DisplayObserver,
public TabStripModelObserver {
public:
explicit BrowserStatusMonitor(ChromeLauncherController* launcher_controller);
virtual ~BrowserStatusMonitor();
// A function which gets called when the current user has changed.
// Note that this function is called by the ChromeLauncherController to be
// able to do the activation in a proper order - rather then setting an
// observer.
virtual void ActiveUserChanged(const std::string& user_email) {}
// A shortcut to call the ChromeLauncherController's UpdateAppState().
void UpdateAppItemState(content::WebContents* contents,
ChromeLauncherController::AppState app_state);
// A shortcut to call the BrowserShortcutLauncherItemController's
// UpdateBrowserItemState().
void UpdateBrowserItemState();
// aura::client::ActivationChangeObserver overrides:
virtual void OnWindowActivated(aura::Window* gained_active,
aura::Window* lost_active) OVERRIDE;
// aura::WindowObserver overrides:
virtual void OnWindowDestroyed(aura::Window* window) OVERRIDE;
// chrome::BrowserListObserver overrides:
virtual void OnBrowserAdded(Browser* browser) OVERRIDE;
virtual void OnBrowserRemoved(Browser* browser) OVERRIDE;
// gfx::DisplayObserver overrides:
virtual void OnDisplayAdded(const gfx::Display& new_display) OVERRIDE;
virtual void OnDisplayRemoved(const gfx::Display& old_display) OVERRIDE;
virtual void OnDisplayMetricsChanged(const gfx::Display& display,
uint32_t metrics) OVERRIDE;
// TabStripModelObserver overrides:
virtual void ActiveTabChanged(content::WebContents* old_contents,
content::WebContents* new_contents,
int index,
int reason) OVERRIDE;
virtual void TabReplacedAt(TabStripModel* tab_strip_model,
content::WebContents* old_contents,
content::WebContents* new_contents,
int index) OVERRIDE;
virtual void TabInsertedAt(content::WebContents* contents,
int index,
bool foreground) OVERRIDE;
virtual void TabClosingAt(TabStripModel* tab_strip_mode,
content::WebContents* contents,
int index) OVERRIDE;
// Called from our own |LocalWebContentsObserver| when web contents did go
// away without any other notification. This might happen in case of
// application uninstalls, page crashes, ...).
void WebContentsDestroyed(content::WebContents* web_contents);
protected:
// Add a V1 application to the shelf. This can get overwritten for multi
// profile implementations.
virtual void AddV1AppToShelf(Browser* browser);
// Remove a V1 application from the shelf. This can get overwritten for multi
// profile implementations.
virtual void RemoveV1AppFromShelf(Browser* browser);
// Check if V1 application is currently in the shelf.
bool IsV1AppInShelf(Browser* browser);
private:
class LocalWebContentsObserver;
class SettingsWindowObserver;
typedef std::map<Browser*, std::string> BrowserToAppIDMap;
typedef std::map<content::WebContents*, LocalWebContentsObserver*>
WebContentsToObserverMap;
// Create LocalWebContentsObserver for |contents|.
void AddWebContentsObserver(content::WebContents* contents);
// Remove LocalWebContentsObserver for |contents|.
void RemoveWebContentsObserver(content::WebContents* contents);
// Returns the ShelfID for |contents|.
ash::ShelfID GetShelfIDForWebContents(content::WebContents* contents);
// Sets the shelf id for browsers represented by the browser shortcut item.
void SetShelfIDForBrowserWindowContents(Browser* browser,
content::WebContents* web_contents);
ChromeLauncherController* launcher_controller_;
// Hold all observed activation clients.
ScopedObserverWithDuplicatedSources<aura::client::ActivationClient,
aura::client::ActivationChangeObserver> observed_activation_clients_;
// Hold all observed root windows.
ScopedObserver<aura::Window, aura::WindowObserver> observed_root_windows_;
BrowserToAppIDMap browser_to_app_id_map_;
WebContentsToObserverMap webcontents_to_observer_map_;
scoped_ptr<SettingsWindowObserver> settings_window_observer_;
DISALLOW_COPY_AND_ASSIGN(BrowserStatusMonitor);
};
#endif // CHROME_BROWSER_UI_ASH_LAUNCHER_BROWSER_STATUS_MONITOR_H_
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