bulma/docs/_javascript/main.js

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JavaScript
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document.addEventListener('DOMContentLoaded', () => {
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// Cookies
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const cookieBookModalName = 'bulma_closed_book_modal';
const cookieBookModal = Cookies.getJSON(cookieBookModalName) || false;
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// Book modal
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// const $bookModal = document.getElementById('bookModal');
// const $bookModalCloseButtons = getAll('.bd-book-modal-close');
// if (!cookieBookModal) {
// setTimeout(() => {
// openModal('bookModal');
// }, 5000);
// }
// if ($bookModalCloseButtons.length > 0) {
// $bookModalCloseButtons.forEach($el => {
// $el.addEventListener('click', event => {
// event.stopPropagation();
// Cookies.set(cookieBookModalName, true, { expires: 30 });
// });
// });
// }
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// Meta links
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const $metalinks = getAll('#meta a');
if ($metalinks.length > 0) {
$metalinks.forEach($el => {
$el.addEventListener('click', event => {
event.preventDefault();
const target = $el.getAttribute('href');
const $target = document.getElementById(target.substring(1));
$target.scrollIntoView(true);
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// window.history.replaceState(null, document.title, `${window.location.origin}${window.location.pathname}${target}`);
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return false;
});
});
}
// Dropdowns
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const $dropdowns = getAll('.dropdown:not(.is-hoverable)');
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if ($dropdowns.length > 0) {
$dropdowns.forEach($el => {
$el.addEventListener('click', event => {
event.stopPropagation();
$el.classList.toggle('is-active');
});
});
document.addEventListener('click', event => {
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closeDropdowns();
});
}
function closeDropdowns() {
$dropdowns.forEach($el => {
$el.classList.remove('is-active');
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});
}
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// Toggles
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const $burgers = getAll('.burger');
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if ($burgers.length > 0) {
$burgers.forEach($el => {
$el.addEventListener('click', () => {
const target = $el.dataset.target;
const $target = document.getElementById(target);
$el.classList.toggle('is-active');
$target.classList.toggle('is-active');
});
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});
}
// Modals
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const rootEl = document.documentElement;
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const $modals = getAll('.modal');
const $modalButtons = getAll('.modal-button');
const $modalCloses = getAll('.modal-background, .modal-close, .modal-card-head .delete, .modal-card-foot .button');
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if ($modalButtons.length > 0) {
$modalButtons.forEach($el => {
$el.addEventListener('click', () => {
const target = $el.dataset.target;
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openModal(target);
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});
});
}
if ($modalCloses.length > 0) {
$modalCloses.forEach($el => {
$el.addEventListener('click', () => {
closeModals();
});
});
}
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function openModal(target) {
const $target = document.getElementById(target);
rootEl.classList.add('is-clipped');
$target.classList.add('is-active');
}
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function closeModals() {
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rootEl.classList.remove('is-clipped');
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$modals.forEach($el => {
$el.classList.remove('is-active');
});
}
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document.addEventListener('keydown', event => {
const e = event || window.event;
if (e.keyCode === 27) {
closeModals();
closeDropdowns();
}
});
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// Clipboard
const $highlights = getAll('.highlight');
let itemsProcessed = 0;
if ($highlights.length > 0) {
$highlights.forEach($el => {
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const copyEl = '<button class="button is-small bd-copy">Copy</button>';
const expandEl = '<button class="button is-small bd-expand">Expand</button>';
$el.insertAdjacentHTML('beforeend', copyEl);
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const $parent = $el.parentNode;
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if ($parent && $parent.classList.contains('bd-is-more')) {
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const showEl = '<button class="bd-show"><div><span class="icon"><i class="fas fa-code"></i></span> <strong>Show code</strong></div></button>';
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$el.insertAdjacentHTML('beforeend', showEl);
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} else if ($el.firstElementChild.scrollHeight > 480 && $el.firstElementChild.clientHeight <= 480) {
$el.insertAdjacentHTML('beforeend', expandEl);
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}
itemsProcessed++;
if (itemsProcessed === $highlights.length) {
addHighlightControls();
}
});
}
function addHighlightControls() {
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const $highlightButtons = getAll('.highlight .bd-copy, .highlight .bd-expand');
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$highlightButtons.forEach($el => {
$el.addEventListener('mouseenter', () => {
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$el.parentNode.classList.add('bd-is-hovering');
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});
$el.addEventListener('mouseleave', () => {
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$el.parentNode.classList.remove('bd-is-hovering');
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});
});
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const $highlightExpands = getAll('.highlight .bd-expand');
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$highlightExpands.forEach($el => {
$el.addEventListener('click', () => {
$el.parentNode.firstElementChild.style.maxHeight = 'none';
});
});
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const $highlightShows = getAll('.highlight .bd-show');
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$highlightShows.forEach($el => {
$el.addEventListener('click', () => {
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$el.parentNode.parentNode.classList.remove('bd-is-more-clipped');
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});
});
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}
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setTimeout(() => {
new Clipboard('.bd-copy', {
target: trigger => {
return trigger.previousElementSibling.firstElementChild;
}
});
}, 100);
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// Functions
function getAll(selector) {
return Array.prototype.slice.call(document.querySelectorAll(selector), 0);
}
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// Scrolling
const navbarEl = document.getElementById('navbar');
const navbarBurger = document.getElementById('navbarBurger');
const specialShadow = document.getElementById('specialShadow');
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const NAVBAR_HEIGHT = 52;
const THRESHOLD = 160;
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let navbarOpen = false;
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let horizon = NAVBAR_HEIGHT;
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let whereYouStoppedScrolling = 0;
let scrollFactor = 0;
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let currentTranslate = 0;
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navbarBurger.addEventListener('click', el => {
navbarOpen = !navbarOpen;
if (navbarOpen) {
rootEl.classList.add('bd-is-clipped-touch');
} else {
rootEl.classList.remove('bd-is-clipped-touch');
}
});
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function upOrDown(lastY, currentY) {
if (currentY >= lastY) {
return goingDown(currentY);
}
return goingUp(currentY);
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}
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function goingDown(currentY) {
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const trigger = NAVBAR_HEIGHT;
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whereYouStoppedScrolling = currentY;
if (currentY > horizon) {
horizon = currentY;
}
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translateHeader(currentY, false);
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}
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function goingUp(currentY) {
const trigger = 0;
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if (currentY < (whereYouStoppedScrolling - NAVBAR_HEIGHT)) {
horizon = currentY + NAVBAR_HEIGHT;
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}
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translateHeader(currentY, true);
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}
function constrainDelta(delta) {
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return Math.max(0, Math.min(delta, NAVBAR_HEIGHT));
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}
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function translateHeader(currentY, upwards) {
// let topTranslateValue;
let translateValue;
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if (upwards && currentTranslate == 0) {
translateValue = 0;
} else if (currentY <= NAVBAR_HEIGHT) {
translateValue = currentY * -1;
} else {
const delta = constrainDelta(Math.abs(currentY - horizon));
translateValue = delta - NAVBAR_HEIGHT;
}
if (translateValue != currentTranslate) {
const navbarStyle = `
transform: translateY(${translateValue}px);
`;
currentTranslate = translateValue;
navbarEl.setAttribute('style', navbarStyle);
}
if (currentY > THRESHOLD * 2) {
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scrollFactor = 1;
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} else if (currentY > THRESHOLD) {
scrollFactor = (currentY - THRESHOLD) / THRESHOLD;
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} else {
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scrollFactor = 0;
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}
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const translateFactor = 1 + translateValue / NAVBAR_HEIGHT;
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if (specialShadow) {
specialShadow.style.opacity = scrollFactor;
specialShadow.style.transform = 'scaleY(' + translateFactor + ')';
}
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}
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// translateHeader(window.scrollY, false);
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let ticking = false;
let lastY = 0;
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// window.addEventListener('scroll', function() {
// const currentY = window.scrollY;
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// if (!ticking) {
// window.requestAnimationFrame(function() {
// upOrDown(lastY, currentY);
// ticking = false;
// lastY = currentY;
// });
// }
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// ticking = true;
// });
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});