83 lines
2.5 KiB
JavaScript
83 lines
2.5 KiB
JavaScript
let i = 0;
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let pageUrl = window.location.href;
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let show = 'block';
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let hide = 'none';
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scrollButton = document.getElementById('scrollButton');
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copyUrlButton = document.getElementById('copyUrl');
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let pageHeight = document.body.scrollHeight;
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function scrollButtonBehavior() {
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scrollButton.href = 'javascript:void(0);';
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if (document.body.scrollTop > 1000 || document.documentElement.scrollTop > 1000) {
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scrollButton.title='scroll to top';
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scrollButton.setAttribute('aria-label', 'scroll to top');
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scrollButton.classList.remove('scrollToBottom');
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} else {
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scrollButton.title='scroll to bottom';
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scrollButton.setAttribute('aria-label', 'scroll to bottom');
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scrollButton.classList.add('scrollToBottom');
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};
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}
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function nowScroll() {
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if (document.body.scrollTop > 1000 || document.documentElement.scrollTop > 1000) {
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window.scrollTo(0, 0);
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} else {
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window.scrollTo(0, pageHeight);
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}
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}
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function tocBehavior() {
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let toc = document.getElementById('toc');
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if (toc) {
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let footer = document.getElementsByTagName('footer')[0];
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let footerHeight = footer.offsetHeight;
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let tocHeight = pageHeight - footerHeight - 100; // adding some random pixels to consider margins etc.
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if (document.body.scrollTop > tocHeight || document.documentElement.scrollTop > tocHeight) {
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toc.style.left = '-19vw';
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} else {
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toc.style.left = '4vw';
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}
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}
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}
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window.onload = function() {
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scrollButtonBehavior();
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window.onscroll = function() {
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tocBehavior();
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scrollButtonBehavior();
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};
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};
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function copyUrl() {
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navigator.clipboard.writeText(pageUrl);
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console.log('copied %s to clipboard', pageUrl);
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copyUrlButton.style.background = 'var(--green)';
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}
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function shareViaMastodon() {
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let defaultUrl = localStorage['instanceUrl'];
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console.log(defaultUrl);
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let instanceUrl= prompt('Enter the address of your server:', defaultUrl);
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localStorage['instanceUrl'] = instanceUrl;
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if ( !instanceUrl.startsWith('https://') && !instanceUrl.startsWith('http://') ) {
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instanceUrl = 'https://' + instanceUrl;
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}
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if ( !instanceUrl.endsWith('/') ) {
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instanceUrl += '/';
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}
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let author = '@tommi@pan.rent';
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let shareUrl = instanceUrl + 'share?text=' + encodeURIComponent(pageUrl + '\n\nby ' + author);
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window.open(shareUrl, '_blank');
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}
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window.addEventListener('load', () => {
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if (copyUrlButton) {
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copyUrlButton.addEventListener('click', copyUrl);
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};
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if (document.getElementById('shareViaMastodon')) {
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document.getElementById('shareViaMastodon').addEventListener('click', shareViaMastodon);
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};
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scrollButton.addEventListener('click', nowScroll);
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});
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