PyCon Preference Recorder

pycon-preference-recorder.js

// To be used on https://us.pycon.org/2017/schedule/talks/list/

// Hide who's giving the talk and when
$("h2 + p").remove()

// On left and right click, increase or decrease the recorded preference for the talk
function process(event, element, left) {
  event.preventDefault()
  event.stopPropagation()
  var href = element.prev().find("a").attr("href")
  localStorage[href] = parseInt(localStorage[href] || 0) + (left ? 1 : -1)
  element.css("background", "hsl(" + ((parseInt(localStorage[href]) + 5) * 10) + ", 50%, 50%)")
}
$(".presentation-description").on("click", function(event) {
  process(event, $(this), true)
}).contextmenu(function(event) {
  process(event, $(this), false)
});