Wanikani Egg Timer

Adds a timer during reviews and displays the final time afterward

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name        Wanikani Egg Timer
// @namespace   wkeggtimer
// @description Adds a timer during reviews and displays the final time afterward
// @include     http://www.wanikani.com/review*
// @include     https://www.wanikani.com/review*
// @version     0.4
// @author      Horus Scope
// @grant	none
// @license     GPL version 3 or later: http://www.gnu.org/copyleft/gpl.html
// ==/UserScript==

function timeStamp( inc ) {
	var prev = parseInt(window.localStorage.eggtimer,10) + inc;
	window.localStorage.eggtimer = prev;
	//  Yes, parseInt is prettier.
	var hours = Math.floor(prev / 60 / 60);
	var minutes = Math.floor( (prev - (hours*60*60)) / 60 );
	var seconds = prev - hours*60*60 - minutes*60;
	return ""
	  + (hours? hours+"h " : "")
	  + (minutes? minutes+"m " : "")
	  + (seconds? seconds+"s" : "");
}
var timeSpan; // referenced in go( )
function generate(  ) {
	var display = document.createElement('div');
	display.className = 'timerSessionDisplay'; // no style actually defined
	timeSpan = document.createElement('span');
	timeSpan.className = 'timerSessionSpan'; // no style actually defined
	timeSpan.textContent = "Last review: " + timeStamp( 0 );
	display.appendChild(timeSpan);
	return display;
}

// start counting. [or, dont]
function go( )
{
	// change behavior depending on screen [summary, reviewing now]
	if(/session$/.exec(window.location.href)) { // review/session [ reviewing now ]
		window.localStorage.eggtimer = 0; // time start
		var header = document.getElementById('summary-button'); // because easy
		var display = generate( ); // makes div object
		header.appendChild( display );

		var showHideButton = document.createElement('div');
		var footer = document.getElementsByTagName('footer');
		showHideButton.onclick = function( ) {
			var displayTimer = window.localStorage.displayTimer;
			if( displayTimer === null || typeof displayTimer === "undefined" ) {
				displayTimer = false;
			} else {
				displayTimer = (displayTimer == "true" ? false : true);
			}
			window.localStorage.displayTimer = displayTimer;
			timeSpan.style.cssText = displayTimer ? "display: inline;" : "display: none;";
			console.log("pressed");
		};
		showHideButton.style.cssText = "background-color: #003377; color: white; cursor: pointer;"
			+ "display: inline; float: left; font-size: 0.8125em; padding: 10px; vertical-align: bottom;";
		showHideButton.textContent = "Show/hide Timer";
		footer[0].appendChild( showHideButton );
		timeSpan.style.cssText = window.localStorage.displayTimer == "false" ? "display: none" : "display: inline";
		setInterval(function() {timeSpan.textContent = "Elapsed: " + timeStamp( 1 );}, 1000);
	} else { // review [ summary screen ]
		var footer = document.getElementById('last-session-date'); // makes sense
		var display = generate( );
		footer.insertBefore(display, footer.childNodes[0]); // probably float:left btw
	}
}

window.onload = go( );