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phab/webroot/rsrc/js/core/Notification.js
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Notification.js
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/**
* @requires javelin-install
* javelin-dom
* javelin-stratcom
* javelin-util
* phabricator-notification-css
* @provides phabricator-notification
* @javelin
*/
/**
* Show a notification popup on screen. Usage:
*
* var n = new JX.Notification()
* .setContent('click me!');
* n.listen('activate', function(e) { alert('you clicked!'); });
* n.show();
*
*/
JX.install('Notification', {
events : ['activate', 'close'],
members : {
_container : null,
_visible : false,
_hideTimer : null,
_duration : 12000,
_desktopReady : false,
_key : null,
_title : null,
_body : null,
_href : null,
_icon : null,
show : function() {
var self = JX.Notification;
if (!this._visible) {
this._visible = true;
self._show(this);
this._updateTimer();
}
if (self.supportsDesktopNotifications() &&
self.desktopNotificationsEnabled() &&
this._desktopReady) {
// Note: specifying "tag" means that notifications with matching
// keys will aggregate.
var n = new window.Notification(this._title, {
icon: this._icon,
body: this._body,
tag: this._key,
});
n.onclick = JX.bind(n, function (href) {
this.close();
window.focus();
if (href) {
JX.$U(href).go();
}
}, this._href);
// Note: some OS / browsers do this automagically; make the behavior
// happen everywhere.
setTimeout(n.close.bind(n), this._duration);
}
return this;
},
hide : function() {
if (this._visible) {
this._visible = false;
var self = JX.Notification;
self._hide(this);
this._updateTimer();
}
return this;
},
alterClassName : function(name, enable) {
JX.DOM.alterClass(this._getContainer(), name, enable);
return this;
},
setContent : function(content) {
JX.DOM.setContent(this._getContainer(), content);
return this;
},
setDesktopReady : function(ready) {
this._desktopReady = ready;
return this;
},
setTitle : function(title) {
this._title = title;
return this;
},
setBody : function(body) {
this._body = body;
return this;
},
setHref : function(href) {
this._href = href;
return this;
},
setKey : function(key) {
this._key = key;
return this;
},
setIcon : function(icon) {
this._icon = icon;
return this;
},
/**
* Set duration before the notification fades away, in milliseconds. If set
* to 0, the notification persists until dismissed.
*
* @param int Notification duration, in milliseconds.
* @return this
*/
setDuration : function(milliseconds) {
this._duration = milliseconds;
this._updateTimer(false);
return this;
},
_updateTimer : function() {
if (this._hideTimer) {
clearTimeout(this._hideTimer);
this._hideTimer = null;
}
if (this._visible && this._duration) {
this._hideTimer = setTimeout(JX.bind(this, this.hide), this._duration);
}
},
_getContainer : function() {
if (!this._container) {
this._container = JX.$N(
'div',
{
className: 'jx-notification',
sigil: 'jx-notification'
});
}
return this._container;
}
},
statics : {
supportsDesktopNotifications : function () {
return 'Notification' in window;
},
desktopNotificationsEnabled : function () {
return window.Notification.permission === 'granted';
},
_container : null,
_listening : false,
_active : [],
_show : function(notification) {
var self = JX.Notification;
self._installListener();
self._active.push(notification);
self._redraw();
},
_hide : function(notification) {
var self = JX.Notification;
for (var ii = 0; ii < self._active.length; ii++) {
if (self._active[ii] === notification) {
notification.invoke('close');
self._active.splice(ii, 1);
break;
}
}
self._redraw();
},
_installListener : function() {
var self = JX.Notification;
if (self._listening) {
return;
} else {
self._listening = true;
}
JX.Stratcom.listen(
'click',
'jx-notification',
function(e) {
// NOTE: Don't kill the event since the user might have clicked a
// link, and we want to follow the link if they did. Instead, invoke
// the activate event for the active notification and dismiss it if it
// isn't handled.
var target = e.getNode('jx-notification');
for (var ii = 0; ii < self._active.length; ii++) {
var n = self._active[ii];
if (n._getContainer() === target) {
var activation = n.invoke('activate');
if (!activation.getPrevented()) {
n.hide();
}
return;
}
}
});
},
_redraw : function() {
var self = JX.Notification;
if (!self._active.length) {
if (self._container) {
JX.DOM.remove(self._container);
self._container = null;
}
return;
}
if (!self._container) {
self._container = JX.$N(
'div',
{
className: 'jx-notification-container'
});
document.body.appendChild(self._container);
}
// Show only a limited number of notifications at once.
var limit = 5;
var notifications = [];
for (var ii = 0; ii < self._active.length; ii++) {
notifications.push(self._active[ii]._getContainer());
if (!(--limit)) {
break;
}
}
JX.DOM.setContent(self._container, notifications);
}
}
});
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