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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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24
js/ui/status/network.js
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@ -15,6 +15,10 @@ const Util = imports.misc.util;
const { loadInterfaceXML } = imports.misc.fileUtils;
Gio._promisify(NM.Client, 'new_async', 'new_finish');
Gio._promisify(NM.Client.prototype,
'check_connectivity_async', 'check_connectivity_finish');
const NMConnectionCategory = {
INVALID: 'invalid',
WIRED: 'wired',
@ -1627,11 +1631,11 @@ class Indicator extends PanelMenu.SystemIndicator {
this._ctypes[NM.SETTING_GSM_SETTING_NAME] = NMConnectionCategory.WWAN;
this._ctypes[NM.SETTING_VPN_SETTING_NAME] = NMConnectionCategory.VPN;
NM.Client.new_async(null, this._clientGot.bind(this));
this._getClient();
}
_clientGot(obj, result) {
this._client = NM.Client.new_finish(result);
async _getClient() {
this._client = await NM.Client.new_async(null);
this._activeConnections = [];
this._connections = [];
@ -1982,7 +1986,7 @@ class Indicator extends PanelMenu.SystemIndicator {
}
}
_portalHelperDone(proxy, emitter, parameters) {
async _portalHelperDone(proxy, emitter, parameters) {
let [path, result] = parameters;
if (result == PortalHelperResult.CANCELLED) {
@ -1993,13 +1997,11 @@ class Indicator extends PanelMenu.SystemIndicator {
} else if (result == PortalHelperResult.COMPLETED) {
this._closeConnectivityCheck(path);
} else if (result == PortalHelperResult.RECHECK) {
this._client.check_connectivity_async(null, (client, res) => {
try {
let state = client.check_connectivity_finish(res);
if (state >= NM.ConnectivityState.FULL)
this._closeConnectivityCheck(path);
} catch (e) { }
});
try {
const state = await this._client.check_connectivity_async(null);
if (state >= NM.ConnectivityState.FULL)
this._closeConnectivityCheck(path);
} catch (e) { }
} else {
log('Invalid result from portal helper: %s'.format(result));
}