Łukasz Leliński lukaleli

Languages: Javascript, Elixir, Java || Technologies: React/React Native, Android SDK, Node JS, OTP || Free time: guitar, drums, art

lukaleli / maintain-input-cursor.directive.ts

Created April 8, 2019 11:53

Angular directive to maintain cursor position in the input field in custom form input element

	import { Directive, Input, HostListener, OnChanges, SimpleChanges, Renderer2, ElementRef } from '@angular/core';

	@Directive({
	selector: 'input[value]:not([ngModel])',
	})
	export class MaintainInputCursorDirective implements OnChanges {
	@Input() value: string;
	renderedValue = '';

	constructor(private renderer: Renderer2, private element: ElementRef) {}

lukaleli / config.ex

Created February 21, 2018 17:26 — forked from bitwalker/config.ex

Useful config wrapper for Elixir

	defmodule Config do
	@moduledoc """
	This module handles fetching values from the config with some additional niceties
	"""

	@doc """
	Fetches a value from the config, or from the environment if {:system, "VAR"}
	is provided.

	An optional default value can be provided if desired.

lukaleli / bash-cheatsheet.sh

Created August 12, 2017 23:33 — forked from LeCoupa/bash-cheatsheet.sh

Bash CheatSheet for UNIX Systems

	#!/bin/bash
	#####################################################
	# Name: Bash CheatSheet for Mac OSX
	#
	# A little overlook of the Bash basics
	#
	# Usage:
	#
	# Author: J. Le Coupanec
	# Date: 2014/11/04

lukaleli / MyComponent.js

Last active May 4, 2017 21:07

React + Redux: Simple function that maps specific props changes to specified component callbacks

	// USAGE

	import React, { Component } from 'react'
	import { connect } from 'react-redux'
	import mapPropsChangeToCallbacks from './mapPropsChangeToCallbacks'

	// Specify props transition that should trigger specific callback
	const mappings = [
	{ method: 'onUploadStart', rule: (prev, next) => !prev.isUploading && next.isUploading },
	{ method: 'onUploadEnd', rule: (prev, next) => prev.isUploading && !next.isUploading },

lukaleli / wp.gitignore

Last active August 29, 2015 14:03

wordpress gitignore

	###############################################################################
	## #
	## GIT IGNORE FOR WORDPRESS SITES #
	## ------------------------------ #
	## By: BigWilliam <hello@bigwilliam.com> #
	## License: MIT - aka you can use/modify this how you want :) #
	## #
	###############################################################################

	###############################################################################

lukaleli / .gitignore

Created July 1, 2014 07:45 — forked from castorflex/.gitignore

lukaleli / framebuster.js

Created April 4, 2014 05:41

Framebuster - prevent your site from embedding in iframe

	if (top.location != self.location) {
	top.location = self.location.href;
	}

lukaleli / prevent mobile default behaviour

Last active December 24, 2015 09:29

prevent default touch events on mobile

lukaleli / rwd

Created June 16, 2013 15:19

RWD media queries

	/* Smartphones (portrait and landscape) ----------- */
	@media only screen
	and (min-device-width : 320px)
	and (max-device-width : 480px) {
	/* STYLES GO HERE */
	}

	/* Smartphones (landscape) ----------- */
	@media only screen
	and (min-width : 321px) {

lukaleli / getAverageRGB

Last active December 18, 2015 02:48

get average color of img (based on canvas feature)

	function getAverageRGB(imgEl) {

	var blockSize = 5, // only visit every 5 pixels
	defaultRGB = {r:0,g:0,b:0}, // for non-supporting envs
	canvas = document.createElement('canvas'),
	context = canvas.getContext && canvas.getContext('2d'),
	data, width, height,
	i = -4,
	length,
	rgb = {r:0,g:0,b:0},