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4 years ago
/**
* Node.js wrapper for "notify-send".
*/
var os = require('os');
var which = require('which');
var utils = require('../lib/utils');
var EventEmitter = require('events').EventEmitter;
var util = require('util');
var notifier = 'notify-send';
var hasNotifier = void 0;
module.exports = NotifySend;
function NotifySend(options) {
options = utils.clone(options || {});
if (!(this instanceof NotifySend)) {
return new NotifySend(options);
}
this.options = options;
EventEmitter.call(this);
}
util.inherits(NotifySend, EventEmitter);
function noop() {}
NotifySend.prototype.notify = function(options, callback) {
options = utils.clone(options || {});
callback = callback || noop;
if (typeof callback !== 'function') {
throw new TypeError(
'The second argument must be a function callback. You have passed ' +
typeof callback
);
}
if (typeof options === 'string') {
options = { title: 'node-notifier', message: options };
}
if (!options.message) {
callback(new Error('Message is required.'));
return this;
}
if (os.type() !== 'Linux' && !os.type().match(/BSD$/)) {
callback(new Error('Only supported on Linux and *BSD systems'));
return this;
}
if (hasNotifier === false) {
callback(new Error('notify-send must be installed on the system.'));
return this;
}
if (hasNotifier || !!this.options.suppressOsdCheck) {
doNotification(options, callback);
return this;
}
try {
hasNotifier = !!which.sync(notifier);
doNotification(options, callback);
} catch (err) {
hasNotifier = false;
return callback(err);
}
return this;
};
var allowedArguments = ['urgency', 'expire-time', 'icon', 'category', 'hint'];
function doNotification(options, callback) {
var initial, argsList;
options = utils.mapToNotifySend(options);
options.title = options.title || 'Node Notification:';
initial = [options.title, options.message];
delete options.title;
delete options.message;
argsList = utils.constructArgumentList(options, {
initial: initial,
keyExtra: '-',
allowedArguments: allowedArguments
});
utils.command(notifier, argsList, callback);
}