moodysalem’s gists

moodysalem / CSSInliner.java

Last active November 23, 2023 08:12

Attempt to inline CSS using Java HTML parsing library jsoup

	import org.jsoup.Jsoup;
	import org.jsoup.nodes.Document;
	import org.jsoup.nodes.Element;
	import org.jsoup.select.Elements;

	import java.util.HashMap;
	import java.util.HashSet;
	import java.util.Set;
	import java.util.StringTokenizer;
	import java.util.logging.Level;

moodysalem / swapfile.config

Last active March 21, 2017 13:32

ebextensions swapfile creation script ec2 swap

	commands:
	000_dd:
	test: test ! -e /swapfile
	command: dd if=/dev/zero of=/swapfile bs=1M count=2048 && chmod 600 /swapfile
	001_mkswap:
	command: mkswap /swapfile
	ignoreErrors: true
	002_swapon:
	command: swapon /swapfile
	ignoreErrors: true

moodysalem / rasterize-letter-pdf.js

Created March 2, 2016 16:24

Render a page to PDF using phantomjs 2.1

	"use strict";
	var page = require('webpage').create(),
	system = require('system'),
	address, output, size;

	if (system.args.length !== 3) {
	console.log('Usage: rasterize.js URL filename [paperwidth*paperheight\|paperformat] [zoom]');
	console.log(' paper (pdf output) examples: "5in7.5in", "10cm20cm", "A4", "Letter"');
	console.log(' image (png/jpg output) examples: "1920px" entire page, window width 1920px');
	console.log(' "800px*600px" window, clipped to 800x600');

moodysalem / React Autoresize Textarea

Last active March 17, 2016 16:57

A React TextArea component that automatically resizes to its content

	React.createClass({
	displayName: 'Autoresizing TextArea',

	propTypes: {
	height: React.PropTypes.number.isRequired,
	onChangeHeight: React.PropTypes.func.isRequired
	},

	getDefaultProps: function () {
	return {

moodysalem / promise-cancellable.js

Last active April 9, 2024 18:06

ES6 Cancellable Promise Wrapper

	/**
	* Returns a promise that has a cancelled method that will cause the callbacks not to fire when it resolves or rejects
	* @param promise to wrap
	* @returns new promise that will only resolve or reject if cancel is not called
	*/
	export default function cancellable(promise) {
	var cancelled = false;

	const toReturn = new Promise((resolve, reject) => {
	promise.then(() => {

moodysalem / queuePromises.jsx

Created November 7, 2016 21:11

JS function that calls a set of functions that generate promises (called generators) in batches and resolves when they have all completed

	import _ from 'underscore';

	/**
	* Takes an array of generators, i.e. functions that return promises, and calls them such that there are only ever
	* 5 requests that are waiting on responses. Returns a promise that resolves to all the resulting promises only after
	* they have all been executed
	*
	* @param generators array of functions that
	* @param batchSize max number of requests to execute at a time
	* @param throttle how often the queue is checked for more requests to process

moodysalem / react-portal.jsx

Last active November 10, 2016 21:02

Render children to a div tag at the end of the body

	import React, { Children, PureComponent, PropTypes } from 'react';
	import { unmountComponentAtNode, unstable_renderSubtreeIntoContainer } from 'react-dom';

	// renders children at the end of the body
	export default class Portal extends PureComponent {
	static propTypes = {
	children: PropTypes.node.isRequired
	};

	componentDidMount() {

moodysalem / render-text.jsx

Created November 11, 2016 19:18

Render React component to text

	import { render, unmountComponentAtNode } from 'react-dom';

	export function renderText(component) {
	const _el = document.createElement('div');
	document.body.appendChild(_el);
	render(component, _el);
	const text = _el.innerText;
	unmountComponentAtNode(_el);
	document.body.removeChild(_el);
	return text;

moodysalem / render-component-to-print-html.jsx

Created November 22, 2016 16:09

Render a react component to an html document that shares all the links and styles for printing, and convert it to a data URI for window.open

	import React, { PureComponent, PropTypes } from 'react';
	import { render, unmountComponentAtNode } from 'react-dom';
	import { Base64 } from 'js-base64';
	import Promise from 'bluebird';

	const htmlDocTemplate = ({ links, pageStyles, body, title = 'Print' }) => (`
	<html>
	<head>
	<title>${title}</title>
	${links}

moodysalem / PreventLeaveRoute.jsx

Created January 22, 2017 18:52

React HOC to prevent leaving a page

	import React, { Component, PropTypes } from 'react';

	/**
	* Only ever render one of these per page
	*
	* TODO: improve with react-side-effect to better handle multiple instances of this being rendered at once so we can
	* nest the component in forms
	*/
	export default class PreventLeaveRoute extends Component {
	static contextTypes = {

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