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// Copyright 2018 The Chromium Authors
// 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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