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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_EXTENSIONS_API_TABS_WINDOWS_EVENT_ROUTER_H_
#define CHROME_BROWSER_EXTENSIONS_API_TABS_WINDOWS_EVENT_ROUTER_H_
#include <map>
#include <string>
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "base/scoped_observer.h"
#include "build/build_config.h"
#include "chrome/browser/extensions/window_controller_list_observer.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
#include "extensions/browser/app_window/app_window_registry.h"
#include "extensions/browser/extension_event_histogram_value.h"
#if !defined(OS_MACOSX)
#include "ui/views/focus/widget_focus_manager.h"
#endif
class Profile;
namespace base {
class ListValue;
}
namespace extensions {
class AppWindow;
class AppWindowController;
class WindowControllerList;
// The WindowsEventRouter sends chrome.windows.* events to listeners
// inside extension process renderers. The router listens to *all* events,
// but will only route events within a profile to extension processes in the
// same profile.
class WindowsEventRouter : public AppWindowRegistry::Observer,
public WindowControllerListObserver,
#if !defined(OS_MACOSX)
public views::WidgetFocusChangeListener,
#endif
public content::NotificationObserver {
public:
explicit WindowsEventRouter(Profile* profile);
~WindowsEventRouter() override;
// |window_controller| is NULL to indicate a focused window has lost focus.
void OnActiveWindowChanged(WindowController* window_controller);
private:
// extensions::AppWindowRegistry::Observer:
void OnAppWindowAdded(extensions::AppWindow* app_window) override;
void OnAppWindowRemoved(extensions::AppWindow* app_window) override;
void OnAppWindowActivated(extensions::AppWindow* app_window) override;
// WindowControllerListObserver methods:
void OnWindowControllerAdded(WindowController* window_controller) override;
void OnWindowControllerRemoved(WindowController* window) override;
#if !defined(OS_MACOSX)
void OnNativeFocusChanged(gfx::NativeView focused_now) override;
#endif
// content::NotificationObserver.
void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) override;
void DispatchEvent(events::HistogramValue histogram_value,
const std::string& event_name,
WindowController* window_controller,
scoped_ptr<base::ListValue> args);
bool HasEventListener(const std::string& event_name);
void AddAppWindow(extensions::AppWindow* app_window);
content::NotificationRegistrar registrar_;
// The main profile that owns this event router.
Profile* profile_;
// The profile the currently focused window belongs to; either the main or
// incognito profile or NULL (none of the above). We remember this in order
// to correctly handle focus changes between non-OTR and OTR windows.
Profile* focused_profile_;
// The currently focused window. We keep this so as to avoid sending multiple
// windows.onFocusChanged events with the same windowId.
int focused_window_id_;
using AppWindowMap = std::map<int, scoped_ptr<AppWindowController>>;
// Map of application windows, the key to the session of the app window.
AppWindowMap app_windows_;
// Observed AppWindowRegistry.
ScopedObserver<AppWindowRegistry, AppWindowRegistry::Observer>
observed_app_registry_;
// Observed WindowControllerList.
ScopedObserver<WindowControllerList, WindowControllerListObserver>
observed_controller_list_;
DISALLOW_COPY_AND_ASSIGN(WindowsEventRouter);
};
} // namespace extensions
#endif // CHROME_BROWSER_EXTENSIONS_API_TABS_WINDOWS_EVENT_ROUTER_H_
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