| // Copyright 2013 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "apps/app_lifetime_monitor.h" |
| |
| #include "base/observer_list.h" |
| #include "content/public/browser/browser_context.h" |
| #include "extensions/browser/app_window/app_window.h" |
| #include "extensions/browser/extension_host.h" |
| #include "extensions/common/extension.h" |
| |
| namespace apps { |
| |
| using extensions::AppWindow; |
| using extensions::AppWindowRegistry; |
| using extensions::Extension; |
| using extensions::ExtensionHost; |
| |
| AppLifetimeMonitor::AppLifetimeMonitor(content::BrowserContext* context) |
| : context_(context) { |
| extension_host_registry_observation_.Observe( |
| extensions::ExtensionHostRegistry::Get(context_)); |
| |
| AppWindowRegistry* app_window_registry = |
| AppWindowRegistry::Factory::GetForBrowserContext(context_, |
| false /* create */); |
| DCHECK(app_window_registry); |
| app_window_registry->AddObserver(this); |
| } |
| |
| AppLifetimeMonitor::~AppLifetimeMonitor() = default; |
| |
| void AppLifetimeMonitor::AddObserver(Observer* observer) { |
| observers_.AddObserver(observer); |
| } |
| |
| void AppLifetimeMonitor::RemoveObserver(Observer* observer) { |
| observers_.RemoveObserver(observer); |
| } |
| |
| void AppLifetimeMonitor::OnExtensionHostCompletedFirstLoad( |
| content::BrowserContext* browser_context, |
| ExtensionHost* host) { |
| const Extension* extension = host->extension(); |
| if (!extension || !extension->is_platform_app()) |
| return; |
| |
| NotifyAppStart(extension->id()); |
| } |
| |
| void AppLifetimeMonitor::OnExtensionHostDestroyed( |
| content::BrowserContext* browser_context, |
| extensions::ExtensionHost* host) { |
| const Extension* extension = host->extension(); |
| if (!extension || !extension->is_platform_app()) |
| return; |
| |
| NotifyAppStop(extension->id()); |
| } |
| |
| void AppLifetimeMonitor::OnAppWindowRemoved(AppWindow* app_window) { |
| if (!HasOtherVisibleAppWindows(app_window)) |
| NotifyAppDeactivated(app_window->extension_id()); |
| } |
| |
| void AppLifetimeMonitor::OnAppWindowHidden(AppWindow* app_window) { |
| if (!HasOtherVisibleAppWindows(app_window)) |
| NotifyAppDeactivated(app_window->extension_id()); |
| } |
| |
| void AppLifetimeMonitor::OnAppWindowShown(AppWindow* app_window, |
| bool was_hidden) { |
| if (app_window->window_type() != AppWindow::WINDOW_TYPE_DEFAULT) |
| return; |
| |
| // The app is being activated if this is the first window to become visible. |
| if (was_hidden && !HasOtherVisibleAppWindows(app_window)) { |
| NotifyAppActivated(app_window->extension_id()); |
| } |
| } |
| |
| void AppLifetimeMonitor::Shutdown() { |
| AppWindowRegistry* app_window_registry = |
| AppWindowRegistry::Factory::GetForBrowserContext(context_, |
| false /* create */); |
| if (app_window_registry) |
| app_window_registry->RemoveObserver(this); |
| } |
| |
| bool AppLifetimeMonitor::HasOtherVisibleAppWindows( |
| AppWindow* app_window) const { |
| AppWindowRegistry::AppWindowList windows = |
| AppWindowRegistry::Get(app_window->browser_context()) |
| ->GetAppWindowsForApp(app_window->extension_id()); |
| |
| for (AppWindowRegistry::AppWindowList::const_iterator i = windows.begin(); |
| i != windows.end(); |
| ++i) { |
| if (*i != app_window && !(*i)->is_hidden()) |
| return true; |
| } |
| return false; |
| } |
| |
| void AppLifetimeMonitor::NotifyAppStart(const std::string& app_id) { |
| for (auto& observer : observers_) |
| observer.OnAppStart(context_, app_id); |
| } |
| |
| void AppLifetimeMonitor::NotifyAppActivated(const std::string& app_id) { |
| for (auto& observer : observers_) |
| observer.OnAppActivated(context_, app_id); |
| } |
| |
| void AppLifetimeMonitor::NotifyAppDeactivated(const std::string& app_id) { |
| for (auto& observer : observers_) |
| observer.OnAppDeactivated(context_, app_id); |
| } |
| |
| void AppLifetimeMonitor::NotifyAppStop(const std::string& app_id) { |
| for (auto& observer : observers_) |
| observer.OnAppStop(context_, app_id); |
| } |
| |
| } // namespace apps |