darkowlzz

// Call eventlistener callback after a short delay
delayedEventListener(node, event, callback, useCapture) {
  node.addEventListener(event, function handler(evt) {
    node.removeEventListener(event, handler, useCapture); // remove the listener, not necessary
    timer.setTimeout(function() {
      try {
        callback.call(self, evt); // call the main callback
      }
      catch(err) { }
    }, someTime); // any amount of time to delay

darkowlzz

// Syntax of a event listener
target.addEventListener(type, listener[, useCapture]);

darkowlzz

// ViewPanel class
function ViewPanel(content, script) {
  this.panel = Panel({
    width: sp.prefs['width'],
    height: sp.prefs['height'],
    contentURL: data.url(content),
    contentScriptFile: data.url(script)
  });

  // listeners on the prefs change

darkowlzz

// ViewPanel class
function ViewPanel(content, script) {
  this.panel = Panel({
    width: sp.prefs['width'],
    height: sp.prefs['height'],
    contentURL: data.url(content),
    contentScriptFile: data.url(script)
  });
 
  // Moved inside the class, better than fighting with closures again

darkowlzz

// ViewPanel class
function ViewPanel(content, script) {
  this.panel = Panel({
    width: sp.prefs['width'],
    height: sp.prefs['height'],
    contentURL: data.url(content),
    contentScriptFile: data.url(script)
  });

  // Using arrow functions to resolve scope issues

darkowlzz

const { id, name, prefixURI, rootURI, metadata,
        version, loadReason, preferencesBranch } = require('@loader/options');

console.log('id: ' + id +
            '\nname: ' + name +
            '\nprefixURI: ' + prefixURI +
            '\nrootURI: ' + rootURI +
            '\nmetadata: ' + JSON.stringify(metadata) +
            '\nversion: ' + version +
            '\nloadReason: ' + loadReason +

darkowlzz

id: jid1-ddYLv0ZiWhMetw@jetpack
name: theGreatestAddon
prefixURI: resource://jid1-ddylv0ziwhmetw-at-jetpack/
rootURI: jar:file:///var/folders/m5/53z6crb100z72tmcb_rldn280000gn/T/tmpcZX_yD.mozrunner/extensions/jid1-ddYLv0ZiWhMetw@jetpack.xpi!/
metadata: {"description":"a basic add-on","license":"MPL 2.0","main":"main","name":"theGreatestAddon","version":"0.1","permissions":{}}
version: 0.1
loadReason: install
preferencesBranch: jid1-ddYLv0ZiWhMetw@jetpack

darkowlzz

const { uri, id, preferencesBranch, name,
	loadReason, version, packed, isPrivate } = require('sdk/self');

console.log('\nuri: ' + uri +
            '\nid: ' + id +
            '\npreferencesBranch: ' + preferencesBranch + 
            '\nname: ' + name +
            '\nloadReason: ' + loadReason +
            '\nversion: ' + version +
            '\npacked: ' + packed +

darkowlzz

uri: addon:jid1-ddYLv0ZiWhMetw@jetpack
id: jid1-ddYLv0ZiWhMetw@jetpack
preferencesBranch: jid1-ddYLv0ZiWhMetw@jetpack
name: theGreatestAddon
loadReason: install
version: 0.1
packed: true
isPrivateBrowsingSupported: false

darkowlzz

const { Cc, Ci, Cu, components } = require('chrome');
Cu.import('resource://gre/modules/NetUtil.jsm');

// Create a file to write
let file = Cc['@mozilla.org/file/local;1'].
           createInstance(Ci.nsILocalFile);
file.initWithPath('/Users/sunny/Desktop');
file.append('test-file.txt');
file.createUnique(Ci.nsIFile.NORMAL_FILE_TYPE, 0666);