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index.js
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executable file
·156 lines (115 loc) · 4.06 KB
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'use strict';
var delegate = require('client/delegate');
var prism = require('client/prism');
var xhr = require('client/xhr');
var TutorialMapModal = require('./tutorialMapModal');
var TutorialMap = require('./tutorialMap');
function init() {
initTaskButtons();
initFolderList();
initSidebarHighlight();
initNewsletterForm();
delegate(document, '[data-action="tutorial-map"]', 'click', function(event) {
if (event.which != 1) return; // only left-click, FF needs this
event.preventDefault();
showTutorialMapModal();
});
prism.init();
if (window.ebookType) {
require.ensure('./ebookExtras', function() {
require('./ebookExtras').init();
}, 'ebookExtras');
}
var tutorialMapElem = document.querySelector('.tutorial-map');
if (tutorialMapElem) {
new TutorialMap(tutorialMapElem);
} else if (/[&?]map\b/.test(location.href)) {
showTutorialMapModal();
}
}
function initNewsletterForm() {
var form = document.querySelector('[data-newsletter-subscribe-form]');
if (!form) return;
form.onsubmit = function(event) {
event.preventDefault();
newsletter.submitSubscribeForm(form);
};
}
function showTutorialMapModal() {
if (!/[&?]map\b/.test(location.href)) {
window.history.replaceState(null, null, ~location.href.indexOf('?') ? (location.href + '&map') : (location.href + '?map'));
}
var modal = new TutorialMapModal();
modal.elem.addEventListener('tutorial-map-remove', function() {
window.history.replaceState(null, null, location.href.replace(/[&?]map\b/, ''));
});
}
function initSidebarHighlight() {
function highlight() {
var current = document.getElementsByClassName('sidebar__navigation-link_active');
if (current[0]) current[0].classList.remove('sidebar__navigation-link_active');
//debugger;
var h2s = document.getElementsByTagName('h2');
for (var i = 0; i < h2s.length; i++) {
var h2 = h2s[i];
// first in-page header
// >1, because when visiting http://javascript.in/native-prototypes#native-prototype-change,
// top may be 0.375 or kind of...
if (h2.getBoundingClientRect().top > 1) break;
}
i--; // we need the one before it (currently reading)
if (i >= 0) {
var href = h2s[i].firstElementChild && h2s[i].firstElementChild.getAttribute('href');
var li = document.querySelector('.sidebar__navigation-link a[href="' + href + '"]');
if (href && li) {
li.classList.add('sidebar__navigation-link_active');
}
}
}
document.addEventListener('DOMContentLoaded', function() {
highlight();
window.addEventListener('scroll', highlight);
});
}
function initTaskButtons() {
// solution button
delegate(document, '.task__solution', 'click', function(event) {
event.target.closest('.task').classList.toggle('task__answer_open');
});
// close solution button
delegate(document, '.task__answer-close', 'click', function(event) {
event.target.closest('.task').classList.toggle('task__answer_open');
});
// every step button (if any steps)
delegate(document, '.task__step-show', 'click', function(event) {
event.target.closest('.task__step').classList.toggle('task__step_open');
});
}
function initFolderList() {
delegate(document, '.lessons-list__lesson_level_1 > .lessons-list__link', 'click', function(event) {
var link = event.delegateTarget;
var openFolder = link.closest('.lessons-list').querySelector('.lessons-list__lesson_open');
// close the previous open folder (thus making an accordion)
if (openFolder && openFolder != link.parentNode) {
openFolder.classList.remove('lessons-list__lesson_open');
}
link.parentNode.classList.toggle('lessons-list__lesson_open');
event.preventDefault();
});
}
window.runDemo = function(button) {
var demoElem;
var parent = button;
/* jshint -W084 */
while (parent = parent.parentElement) {
demoElem = parent.querySelector('[data-demo]');
if (demoElem) break;
}
if (!demoElem) {
alert("Error, no demo element");
} else {
/* jshint -W061 */
eval(demoElem.textContent);
}
};
init();