109 lines
3.0 KiB
JavaScript
109 lines
3.0 KiB
JavaScript
/* global anchors */
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// add anchor links to headers
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anchors.options.placement = 'left';
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anchors.add('h3');
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// Filter UI
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var tocElements = document.getElementById('toc')
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.getElementsByTagName('li');
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document.getElementById('filter-input')
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.addEventListener('keyup', function (e) {
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var i, element, children;
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// enter key
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if (e.keyCode === 13) {
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// go to the first displayed item in the toc
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for (i = 0; i < tocElements.length; i++) {
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element = tocElements[i];
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if (!element.classList.contains('display-none')) {
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location.replace(element.firstChild.href);
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return e.preventDefault();
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}
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}
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}
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var match = function () {
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return true;
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};
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var value = this.value.toLowerCase();
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if (!value.match(/^\s*$/)) {
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match = function (element) {
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return element.firstChild.innerHTML.toLowerCase().indexOf(value) !== -1;
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};
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}
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for (i = 0; i < tocElements.length; i++) {
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element = tocElements[i];
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children = Array.from(element.getElementsByTagName('li'));
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if (match(element) || children.some(match)) {
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element.classList.remove('display-none');
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} else {
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element.classList.add('display-none');
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}
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}
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});
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var toggles = document.getElementsByClassName('toggle-step-sibling');
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for (var i = 0; i < toggles.length; i++) {
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toggles[i].addEventListener('click', toggleStepSibling);
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}
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function toggleStepSibling() {
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var stepSibling = this.parentNode.parentNode.parentNode.getElementsByClassName('toggle-target')[0];
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var klass = 'display-none';
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if (stepSibling.classList.contains(klass)) {
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stepSibling.classList.remove(klass);
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stepSibling.innerHTML = '▾';
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} else {
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stepSibling.classList.add(klass);
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stepSibling.innerHTML = '▸';
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}
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}
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var items = document.getElementsByClassName('toggle-sibling');
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for (var j = 0; j < items.length; j++) {
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items[j].addEventListener('click', toggleSibling);
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}
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function toggleSibling() {
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var stepSibling = this.parentNode.getElementsByClassName('toggle-target')[0];
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var icon = this.getElementsByClassName('icon')[0];
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var klass = 'display-none';
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if (stepSibling.classList.contains(klass)) {
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stepSibling.classList.remove(klass);
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icon.innerHTML = '▾';
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} else {
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stepSibling.classList.add(klass);
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icon.innerHTML = '▸';
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}
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}
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function showHashTarget(targetId) {
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var hashTarget = document.getElementById(targetId);
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// new target is hidden
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if (hashTarget && hashTarget.offsetHeight === 0 &&
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hashTarget.parentNode.parentNode.classList.contains('display-none')) {
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hashTarget.parentNode.parentNode.classList.remove('display-none');
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}
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}
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window.addEventListener('hashchange', function() {
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showHashTarget(location.hash.substring(1));
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});
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showHashTarget(location.hash.substring(1));
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var toclinks = document.getElementsByClassName('pre-open');
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for (var k = 0; k < toclinks.length; k++) {
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toclinks[k].addEventListener('mousedown', preOpen, false);
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}
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function preOpen() {
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showHashTarget(this.hash.substring(1));
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}
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