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f5593d08dc
Externalize clipboard copying to the [clippie](https://github.com/silverwind/clippie) module which I feel I can maintain outside this repo for shared benefit with my other projects. The module is feature-equivalent to the previous code and has one improvement where it sets `aria-hidden` on the fallback textarea, preventing screen readers from picking it up. Also it support `Array` of `content` as well to copy multiple items at once, in case it's ever needed.
61 lines
2.0 KiB
JavaScript
61 lines
2.0 KiB
JavaScript
import {clippie} from 'clippie';
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import {showTemporaryTooltip} from '../modules/tippy.js';
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import {convertImage} from '../utils.js';
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const {i18n} = window.config;
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async function doCopy(content, btn) {
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const success = await clippie(content);
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showTemporaryTooltip(btn, success ? i18n.copy_success : i18n.copy_error);
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}
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export function initCopyContent() {
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const btn = document.getElementById('copy-content');
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if (!btn || btn.classList.contains('disabled')) return;
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btn.addEventListener('click', async () => {
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if (btn.classList.contains('is-loading')) return;
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let content, isImage;
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const link = btn.getAttribute('data-link');
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// when data-link is present, we perform a fetch. this is either because
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// the text to copy is not in the DOM or it is an image which should be
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// fetched to copy in full resolution
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if (link) {
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btn.classList.add('is-loading');
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try {
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const res = await fetch(link, {credentials: 'include', redirect: 'follow'});
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const contentType = res.headers.get('content-type');
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if (contentType.startsWith('image/') && !contentType.startsWith('image/svg')) {
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isImage = true;
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content = await res.blob();
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} else {
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content = await res.text();
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}
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} catch {
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return showTemporaryTooltip(btn, i18n.copy_error);
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} finally {
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btn.classList.remove('is-loading');
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}
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} else { // text, read from DOM
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const lineEls = document.querySelectorAll('.file-view .lines-code');
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content = Array.from(lineEls).map((el) => el.textContent).join('');
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}
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try {
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await doCopy(content, btn);
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} catch {
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if (isImage) { // convert image to png as last-resort as some browser only support png copy
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try {
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await doCopy(await convertImage(content, 'image/png'), btn);
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} catch {
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showTemporaryTooltip(btn, i18n.copy_error);
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}
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} else {
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showTemporaryTooltip(btn, i18n.copy_error);
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}
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}
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});
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}
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