// ==UserScript==
// @name         Bunpro: Jisho Button
// @namespace    http://tampermonkey.net/
// @version      0.5.3
// @description  Searches the sentence on Jisho.
// @author       Kumirei
// @include      http://bunpro.jp*
// @include      https://bunpro.jp*
// @require      https://greasyfork.org/scripts/5392-waitforkeyelements/code/WaitForKeyElements.js?version=115012
// @require      https://greasyfork.org/scripts/370623-bunpro-helpful-events/code/Bunpro:%20Helpful%20Events.js?version=615700
// @require      https://greasyfork.org/scripts/370219-bunpro-buttons-bar/code/Bunpro:%20Buttons%20Bar.js?version=612035
// @grant        none
// @downloadURL none
// ==/UserScript==

(function() {
		//Wait until we're on the study page and can add the button
		$('HTML')[0].addEventListener('quiz-page', function() {
				//add button
				buttonsBar.addButton('JishoButton', 'Jisho', 'window.open(\'https://www.jisho.org/search/\' + parseSentence($(\'.study-question-japanese > div\')[0]))');

				//Bind J to the Jisho button
				$('#study-answer-input').on('keyup', function(e) {
						if (e.which == 74 && $('#submit-study-answer').attr('value') == "Next") {
								$('#JishoButton').click();
						}
				});
		});
})();

//Extracts the sentence from the sentence elements
parseSentence = function(sentenceElem) {
		var sentence = "";
		sentenceElem.childNodes.forEach(function(elem) {
				// find the text in each kind of element and append it to the sentence string
				var name = elem.nodeName;
				if (name == "#text") {
						sentence += elem.data;
				}
				else if (name == "STRONG" && elem.children.length) {
						sentence += elem.children[0].childNodes[0].data;       // with kanji in url
						//sentence += elem.children[0].children[1].innerText;     // with kana in url
				}
				else if (name == "SPAN" && elem.className == "study-area-input") {
						if (elem.innerText == "") sentence += "____";
						else sentence += elem.innerText;
				}
				else if (name == "RUBY") {
						sentence += elem.childNodes[0].data;       // with kanji in url
						//sentence += elem.children[1].innerText;     // with kana in url
				}
		});
		return sentence;
}