100 lines
3.2 KiB
JavaScript
100 lines
3.2 KiB
JavaScript
// Link tabs, as per https://facelessuser.github.io/pymdown-extensions/extensions/tabbed/#linked-tabs
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const savedTab = localStorage.getItem('savedTab')
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const tabs = document.querySelectorAll(".tabbed-set > input")
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for (const tab of tabs) {
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tab.addEventListener("click", () => {
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const current = document.querySelector(`label[for=${tab.id}]`)
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const pos = current.getBoundingClientRect().top
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const labelContent = current.innerHTML
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const labels = document.querySelectorAll('.tabbed-set > label, .tabbed-alternate > .tabbed-labels > label')
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for (const label of labels) {
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if (label.innerHTML === labelContent) {
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document.querySelector(`input[id=${label.getAttribute('for')}]`).checked = true
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}
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}
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// Preserve scroll position
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const delta = (current.getBoundingClientRect().top) - pos
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window.scrollBy(0, delta)
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// Save
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localStorage.setItem('savedTab', labelContent)
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})
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// Select saved tab
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const current = document.querySelector(`label[for=${tab.id}]`)
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const labelContent = current.innerHTML
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if (savedTab === labelContent) {
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tab.checked = true
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}
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}
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// Lightbox for screenshot
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const lightbox = document.createElement('div');
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lightbox.classList.add('lightbox');
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document.body.appendChild(lightbox);
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const showScreenshotOverlay = (e, el, group, index) => {
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lightbox.classList.add('show');
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document.addEventListener('keydown', nextScreenshotKeyboardListener);
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return showScreenshot(e, group, index);
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};
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const showScreenshot = (e, group, index) => {
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const actualIndex = resolveScreenshotIndex(group, index);
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lightbox.innerHTML = '<div class="close-lightbox"></div>' + screenshots[group][actualIndex].innerHTML;
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lightbox.querySelector('img').onclick = (e) => { return showScreenshot(e, group, actualIndex+1); };
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currentScreenshotGroup = group;
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currentScreenshotIndex = actualIndex;
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e.stopPropagation();
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return false;
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};
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const nextScreenshot = (e) => {
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return showScreenshot(e, currentScreenshotGroup, currentScreenshotIndex+1);
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};
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const previousScreenshot = (e) => {
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return showScreenshot(e, currentScreenshotGroup, currentScreenshotIndex-1);
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};
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const resolveScreenshotIndex = (group, index) => {
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if (index < 0) {
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return screenshots[group].length - 1;
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} else if (index > screenshots[group].length - 1) {
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return 0;
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}
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return index;
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};
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const hideScreenshotOverlay = (e) => {
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lightbox.classList.remove('show');
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document.removeEventListener('keydown', nextScreenshotKeyboardListener);
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};
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const nextScreenshotKeyboardListener = (e) => {
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switch (e.keyCode) {
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case 37:
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previousScreenshot(e);
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break;
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case 39:
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nextScreenshot(e);
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break;
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}
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};
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let currentScreenshotGroup = '';
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let currentScreenshotIndex = 0;
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let screenshots = {};
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Array.from(document.getElementsByClassName('screenshots')).forEach((sg) => {
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const group = sg.id;
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screenshots[group] = [...sg.querySelectorAll('a')];
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screenshots[group].forEach((el, index) => {
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el.onclick = (e) => { return showScreenshotOverlay(e, el, group, index); };
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});
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});
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lightbox.onclick = hideScreenshotOverlay;
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