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luci-base: ui.js: add pingDevice() and awaitReconnect() functions

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Import these functions from the flash.js for use with other views that
might trigger a device reboot.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>
This commit is contained in:
Jo-Philipp Wich 2019-10-07 10:07:49 +02:00
parent 55fb53e995
commit f3ef2ca2eb
1 changed files with 38 additions and 0 deletions
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38
modules/luci-base/htdocs/luci-static/resources/ui.js
View file

@ -2214,6 +2214,44 @@ return L.Class.extend({
}
}),
/* Reconnect handling */
pingDevice: function(proto, ipaddr) {
var target = '%s://%s%s?%s'.format(proto || 'http', ipaddr || window.location.host, L.resource('icons/loading.gif'), Math.random());
return new Promise(function(resolveFn, rejectFn) {
var img = new Image();
img.onload = resolveFn;
img.onerror = rejectFn;
window.setTimeout(rejectFn, 1000);
img.src = target;
});
},
awaitReconnect: function(/* ... */) {
var ipaddrs = arguments.length ? arguments : [ window.location.host ];
window.setTimeout(L.bind(function() {
L.Poll.add(L.bind(function() {
var tasks = [], reachable = false;
for (var i = 0; i < 2; i++)
for (var j = 0; j < ipaddrs.length; j++)
tasks.push(this.pingDevice(i ? 'https' : 'http', ipaddrs[j])
.then(function(ev) { reachable = ev.target.src.replace(/^(https?:\/\/[^\/]+).*$/, '$1/') }, function() {}));
return Promise.all(tasks).then(function() {
if (reachable) {
L.Poll.stop();
window.location = reachable;
}
});
}, this));
}, this), 5000);
},
/* UCI Changes */
changes: L.Class.singleton({
init: function() {