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js: Promisify async operations

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Promises make asynchronous operations easier to manage, in particular
when used through the async/await syntax that allows for asynchronous
code to closely resemble synchronous one.

gjs has included a Gio._promisify() helper for a while now, which
monkey-patches methods that follow GIO's async pattern to return a
Promise when called without a callback argument.

Use that to get rid of all those GAsyncReadyCallbacks!

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1126
This commit is contained in:
Florian Müllner
2019-12-19 20:50:37 +01:00
committed by Florian Müllner
parent 18742fcc32
commit 764527c8c9
20 changed files with 409 additions and 428 deletions
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19
js/ui/endSessionDialog.js
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@ -29,8 +29,6 @@ const UserWidget = imports.ui.userWidget;
const { loadInterfaceXML } = imports.misc.fileUtils;
Gio._promisify(Gio.DBusConnection.prototype, 'call', 'call_finish');
const _ITEM_ICON_SIZE = 64;
const EndSessionDialogIface = loadInterfaceXML('org.gnome.SessionManager.EndSessionDialog');
@ -280,7 +278,7 @@ class EndSessionDialog extends ModalDialog.ModalDialog {
this._dbusImpl.export(Gio.DBus.session, '/org/gnome/SessionManager/EndSessionDialog');
}
_onPkOfflineProxyCreated(proxy, error) {
async _onPkOfflineProxyCreated(proxy, error) {
if (error) {
log(error.message);
return;
@ -295,15 +293,12 @@ class EndSessionDialog extends ModalDialog.ModalDialog {
}
// It only makes sense to check for this permission if PackageKit is available.
Polkit.Permission.new(
'org.freedesktop.packagekit.trigger-offline-update', null, null,
(source, res) => {
try {
this._updatesPermission = Polkit.Permission.new_finish(res);
} catch (e) {
log('No permission to trigger offline updates: %s'.format(e.toString()));
}
});
try {
this._updatesPermission = await Polkit.Permission.new(
'org.freedesktop.packagekit.trigger-offline-update', null, null);
} catch (e) {
log('No permission to trigger offline updates: %s'.format(e.toString()));
}
}
_onDestroy() {