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View UIControl+ListenBlock.swift
import Foundation
import UIKit
extension UIControl {
func listen(_ action: @escaping () -> (), for controlEvents: UIControlEvents) -> AnyObject {
let sleeve = ClosureSleeve(attachTo: self, closure: action, controlEvents: controlEvents)
addTarget(sleeve, action: #selector(ClosureSleeve.invoke), for: controlEvents)
return sleeve
View gist:db0116041c48d3d0d3643c7f046fa061

1. Clone your fork:

git clone

2. Add remote from original repository in your forked repository:

cd into/cloned/fork-repo
git remote add upstream git://
git fetch upstream

Install Multiple Java Versions on macOS High Sierra

Install Homebrew Cask

On Mac, Homebrew is the de-facto package manager, and Homebrew Cask is the app manager. I’m going to use Cask to install Java 7 and 9.

Install Homebrew Cask first if you haven’t:

brew update
brew tap caskroom/cask


This procedure is tested on Mac OS X 10.10.5 with Developpers tools installed (xCode).

PHP 5.6 installed with Homebrew.


Download the following files from Oracle website (yes, you need to create an account and accept terms):

View SimplePickerView.swift
import UIKit
class SimplePickerView : UIPickerView {
class SimplePickerViewModel : NSObject, UIPickerViewDelegate, UIPickerViewDataSource {
var titles: [String]
var selectionHandler: ((_ pickerView: UIPickerView, _ row: Int, _ title: String) -> ())?
init(titles: [String], selectionHandler: ((_ pickerView: UIPickerView, _ row: Int, _ title: String) -> ())? = nil) {
View Picker.swift
class PickerSource : NSObject, UIPickerViewDelegate, UIPickerViewDataSource {
var data: [[String]] = []
var selectionUpdated: ((component: Int, row: Int) -> Void)?
// MARK: UIPickerViewDataSource
func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int {
return data.count
View addEventListener-polyfill.js
//addEventListener polyfill 1.0 / Eirik Backer / MIT Licence
(function(win, doc){
if(win.addEventListener)return; //No need to polyfill
function docHijack(p){var old = doc[p];doc[p] = function(v){return addListen(old(v))}}
function addEvent(on, fn, self){
return (self = this).attachEvent('on' + on, function(e){
var e = e || win.event;
e.preventDefault = e.preventDefault || function(){e.returnValue = false}
e.stopPropagation = e.stopPropagation || function(){e.cancelBubble = true}