mirror of https://github.com/hrfee/jfa-go
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80 lines
2.6 KiB
80 lines
2.6 KiB
// Used for animation on theme change
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const whichTransitionEvent = (): string => {
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const el = document.createElement('fakeElement');
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const transitions = {
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'transition': 'transitionend',
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'OTransition': 'oTransitionEnd',
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'MozTransition': 'transitionend',
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'WebkitTransition': 'webkitTransitionEnd'
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};
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for (const t in transitions) {
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if (el.style[t] !== undefined) {
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return transitions[t];
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}
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}
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return '';
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};
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var transitionEndEvent = whichTransitionEvent();
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// Toggles between light and dark themes
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const _toggleCSS = (): void => {
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const els: NodeListOf<HTMLLinkElement> = document.querySelectorAll('link[rel="stylesheet"][type="text/css"]');
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let cssEl = 0;
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let remove = false;
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if (els.length != 1) {
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cssEl = 1;
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remove = true
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}
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let href: string = "bs" + bsVersion;
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if (!els[cssEl].href.includes(href + "-jf")) {
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href += "-jf";
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}
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href += ".css";
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let newEl = els[cssEl].cloneNode(true) as HTMLLinkElement;
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newEl.href = href;
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els[cssEl].parentNode.insertBefore(newEl, els[cssEl].nextSibling);
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if (remove) {
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els[0].remove();
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}
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document.cookie = "css=" + href;
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}
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// Toggles between light and dark themes, but runs animation if window small enough.
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var buttonWidth = 0;
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const toggleCSS = (el: HTMLElement): void => {
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const switchToColor = window.getComputedStyle(document.body, null).backgroundColor;
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// Max page width for animation to take place
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let maxWidth = 1500;
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if (window.innerWidth < maxWidth) {
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// Calculate minimum radius to cover screen
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const radius = Math.sqrt(Math.pow(window.innerWidth, 2) + Math.pow(window.innerHeight, 2));
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const currentRadius = el.getBoundingClientRect().width / 2;
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const scale = radius / currentRadius;
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buttonWidth = +window.getComputedStyle(el, null).width;
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document.body.classList.remove('smooth-transition');
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el.style.transform = `scale(${scale})`;
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el.style.color = switchToColor;
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el.addEventListener(transitionEndEvent, function (): void {
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if (this.style.transform.length != 0) {
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_toggleCSS();
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this.style.removeProperty('transform');
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document.body.classList.add('smooth-transition');
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}
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}, false);
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} else {
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_toggleCSS();
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el.style.color = switchToColor;
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}
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};
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const rotateButton = (el: HTMLElement): void => {
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if (el.classList.contains("rotated")) {
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rmAttr(el, "rotated")
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addAttr(el, "not-rotated");
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} else {
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rmAttr(el, "not-rotated");
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addAttr(el, "rotated");
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}
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};
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