mirror of
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129 lines
4.1 KiB
JavaScript
129 lines
4.1 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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this.EXPORTED_SYMBOLS = ["Notifications", "Notification", "NotificationButton"];
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const Cc = Components.classes;
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const Ci = Components.interfaces;
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const Cr = Components.results;
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const Cu = Components.utils;
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Cu.import("resource://services-common/observers.js");
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Cu.import("resource://services-common/log4moz.js");
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Cu.import("resource://services-sync/util.js");
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this.Notifications = {
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// Match the referenced values in toolkit/content/widgets/notification.xml.
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get PRIORITY_INFO() 1, // PRIORITY_INFO_LOW
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get PRIORITY_WARNING() 4, // PRIORITY_WARNING_LOW
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get PRIORITY_ERROR() 7, // PRIORITY_CRITICAL_LOW
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// FIXME: instead of making this public, dress the Notifications object
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// to behave like an iterator (using generators?) and have callers access
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// this array through the Notifications object.
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notifications: [],
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_observers: [],
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// XXX Should we have a helper method for adding a simple notification?
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// I.e. something like |function notify(title, description, priority)|.
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add: function Notifications_add(notification) {
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this.notifications.push(notification);
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Observers.notify("weave:notification:added", notification, null);
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},
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remove: function Notifications_remove(notification) {
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let index = this.notifications.indexOf(notification);
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if (index != -1) {
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this.notifications.splice(index, 1);
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Observers.notify("weave:notification:removed", notification, null);
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}
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},
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/**
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* Replace an existing notification.
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*/
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replace: function Notifications_replace(oldNotification, newNotification) {
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let index = this.notifications.indexOf(oldNotification);
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if (index != -1)
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this.notifications.splice(index, 1, newNotification);
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else {
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this.notifications.push(newNotification);
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// XXX Should we throw because we didn't find the existing notification?
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// XXX Should we notify observers about weave:notification:added?
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}
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// XXX Should we notify observers about weave:notification:replaced?
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},
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/**
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* Remove all notifications that match a title. If no title is provided, all
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* notifications are removed.
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*
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* @param title [optional]
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* Title of notifications to remove; falsy value means remove all
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*/
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removeAll: function Notifications_removeAll(title) {
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this.notifications.filter(function(old) old.title == title || !title).
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forEach(function(old) this.remove(old), this);
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},
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// replaces all existing notifications with the same title as the new one
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replaceTitle: function Notifications_replaceTitle(notification) {
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this.removeAll(notification.title);
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this.add(notification);
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}
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};
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/**
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* A basic notification. Subclass this to create more complex notifications.
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*/
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this.Notification =
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function Notification(title, description, iconURL, priority, buttons) {
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this.title = title;
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this.description = description;
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if (iconURL)
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this.iconURL = iconURL;
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if (priority)
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this.priority = priority;
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if (buttons)
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this.buttons = buttons;
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}
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// We set each prototype property individually instead of redefining
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// the entire prototype to avoid blowing away existing properties
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// of the prototype like the the "constructor" property, which we use
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// to bind notification objects to their XBL representations.
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Notification.prototype.priority = Notifications.PRIORITY_INFO;
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Notification.prototype.iconURL = null;
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Notification.prototype.buttons = [];
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/**
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* A button to display in a notification.
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*/
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this.NotificationButton =
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function NotificationButton(label, accessKey, callback) {
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function callbackWrapper() {
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try {
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callback.apply(this, arguments);
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} catch (e) {
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let logger = Log4Moz.repository.getLogger("Sync.Notifications");
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logger.error("An exception occurred: " + Utils.exceptionStr(e));
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logger.info(Utils.stackTrace(e));
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throw e;
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}
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}
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this.label = label;
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this.accessKey = accessKey;
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this.callback = callbackWrapper;
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}
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