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- // Copyright 2018 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.
- #include "extensions/shell/browser/shell_keep_alive_requester.h"
- #include "apps/app_lifetime_monitor_factory.h"
- #include "components/keep_alive_registry/keep_alive_types.h"
- #include "components/keep_alive_registry/scoped_keep_alive.h"
- #include "extensions/browser/extension_prefs.h"
- namespace extensions {
- ShellKeepAliveRequester::ShellKeepAliveRequester(
- content::BrowserContext* browser_context) {
- extension_registry_observation_.Observe(
- ExtensionRegistry::Get(browser_context));
- app_lifetime_monitor_observation_.Observe(
- apps::AppLifetimeMonitorFactory::GetForBrowserContext(browser_context));
- }
- ShellKeepAliveRequester::~ShellKeepAliveRequester() = default;
- void ShellKeepAliveRequester::StartTrackingReload(const Extension* extension) {
- if (!extension->is_platform_app())
- return;
- // The app will be reloaded, closing its windows. Add a keep-alive to wait for
- // the app to unload and reload.
- app_reloading_keep_alives_[extension->id()] =
- std::make_unique<ScopedKeepAlive>(KeepAliveOrigin::APP_CONTROLLER,
- KeepAliveRestartOption::ENABLED);
- }
- void ShellKeepAliveRequester::StopTrackingReload(
- const ExtensionId& old_extension_id) {
- // No longer waiting for reload to complete.
- app_reloading_keep_alives_.erase(old_extension_id);
- }
- void ShellKeepAliveRequester::OnExtensionLoaded(
- content::BrowserContext* browser_context,
- const Extension* extension) {
- if (!extension->is_platform_app())
- return;
- // Add a keep-alive to wait for the app to launch its first app window, as
- // otherwise the Aura desktop controller may exit. The assumption is that all
- // apps will create a visible window. If the app doesn't, this keep-alive will
- // still be erased once the app's background page eventually stops.
- app_launching_keep_alives_[extension->id()] =
- std::make_unique<ScopedKeepAlive>(KeepAliveOrigin::APP_CONTROLLER,
- KeepAliveRestartOption::ENABLED);
- }
- void ShellKeepAliveRequester::OnExtensionUnloaded(
- content::BrowserContext* browser_context,
- const Extension* extension,
- UnloadedExtensionReason reason) {
- // There may already be a keep-alive waiting for the app to launch a window.
- // Remove that; another will be created if the extension successfully loads.
- app_launching_keep_alives_.erase(extension->id());
- }
- void ShellKeepAliveRequester::OnAppActivated(content::BrowserContext* context,
- const std::string& app_id) {
- // The app has launched its first window. The desktop controller will keep
- // running until all app windows close.
- app_launching_keep_alives_.erase(app_id);
- }
- void ShellKeepAliveRequester::OnAppStop(content::BrowserContext* context,
- const std::string& app_id) {
- // The app will still have a keep-alive if it never showed a window.
- app_launching_keep_alives_.erase(app_id);
- }
- } // namespace extensions
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