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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
function AppMenuNotification(id, mainAction, secondaryAction, options = {}) {
this.id = id;
this.mainAction = mainAction;
this.secondaryAction = secondaryAction;
this.options = options;
this.dismissed = this.options.dismissed || false;
}
export var AppMenuNotifications = {
_notifications: [],
_hasInitialized: false,
get notifications() {
return Array.from(this._notifications);
},
_lazyInit() {
if (!this._hasInitialized) {
Services.obs.addObserver(this, "xpcom-shutdown");
Services.obs.addObserver(this, "appMenu-notifications-request");
}
},
uninit() {
Services.obs.removeObserver(this, "xpcom-shutdown");
Services.obs.removeObserver(this, "appMenu-notifications-request");
},
observe(subject, topic, status) {
switch (topic) {
case "xpcom-shutdown":
this.uninit();
break;
case "appMenu-notifications-request":
if (this._notifications.length) {
Services.obs.notifyObservers(null, "appMenu-notifications", "init");
}
break;
}
},
get activeNotification() {
if (this._notifications.length) {
const doorhanger = this._notifications.find(
n => !n.dismissed && !n.options.badgeOnly
);
return doorhanger || this._notifications[0];
}
return null;
},
showNotification(id, mainAction, secondaryAction, options = {}) {
let notification = new AppMenuNotification(
id,
mainAction,
secondaryAction,
options
);
let existingIndex = this._notifications.findIndex(n => n.id == id);
if (existingIndex != -1) {
this._notifications.splice(existingIndex, 1);
}
// We don't want to clobber doorhanger notifications just to show a badge,
// so don't dismiss any of them and the badge will show once the doorhanger
// gets resolved.
if (!options.badgeOnly && !options.dismissed) {
this._notifications.forEach(n => {
n.dismissed = true;
});
}
// Since notifications are generally somewhat pressing, the ideal case is that
// we never have two notifications at once. However, in the event that we do,
// it's more likely that the older notification has been sitting around for a
// bit, and so we don't want to hide the new notification behind it. Thus,
// we want our notifications to behave like a stack instead of a queue.
this._notifications.unshift(notification);
this._lazyInit();
this._updateNotifications();
return notification;
},
showBadgeOnlyNotification(id) {
return this.showNotification(id, null, null, { badgeOnly: true });
},
removeNotification(id) {
let notifications;
if (typeof id == "string") {
notifications = this._notifications.filter(n => n.id == id);
} else {
// If it's not a string, assume RegExp
notifications = this._notifications.filter(n => id.test(n.id));
}
// _updateNotifications can be expensive if it forces attachment of XBL
// bindings that haven't been used yet, so return early if we haven't found
// any notification to remove, as callers may expect this removeNotification
// method to be a no-op for non-existent notifications.
if (!notifications.length) {
return;
}
notifications.forEach(n => {
this._removeNotification(n);
});
this._updateNotifications();
},
dismissNotification(id) {
let notifications;
if (typeof id == "string") {
notifications = this._notifications.filter(n => n.id == id);
} else {
// If it's not a string, assume RegExp
notifications = this._notifications.filter(n => id.test(n.id));
}
notifications.forEach(n => {
n.dismissed = true;
if (n.options.onDismissed) {
n.options.onDismissed();
}
});
this._updateNotifications();
},
callMainAction(win, notification, fromDoorhanger) {
let action = notification.mainAction;
this._callAction(win, notification, action, fromDoorhanger);
},
callSecondaryAction(win, notification) {
let action = notification.secondaryAction;
this._callAction(win, notification, action, true);
},
_callAction(win, notification, action, fromDoorhanger) {
let dismiss = true;
if (action) {
try {
action.callback(win, fromDoorhanger);
} catch (error) {
Cu.reportError(error);
}
dismiss = action.dismiss;
}
if (dismiss) {
notification.dismissed = true;
} else {
this._removeNotification(notification);
}
this._updateNotifications();
},
_removeNotification(notification) {
// This notification may already be removed, in which case let's just ignore.
let notifications = this._notifications;
if (!notifications) {
return;
}
var index = notifications.indexOf(notification);
if (index == -1) {
return;
}
// Remove the notification
notifications.splice(index, 1);
},
_updateNotifications() {
Services.obs.notifyObservers(null, "appMenu-notifications", "update");
},
};
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