c2fb27beb4
It now supports copying Markdown, SVG and Images (not in Firefox currently because of lacking [`ClipboardItem`](https://developer.mozilla.org/en-US/docs/Web/API/ClipboardItem) support, but can be enabled in `about:config` and works). It will fetch the data if in a rendered view or when it's an image. Followup to https://github.com/go-gitea/gitea/pull/21629.
68 lines
2.1 KiB
JavaScript
68 lines
2.1 KiB
JavaScript
import {showTemporaryTooltip} from '../modules/tippy.js';
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const {copy_success, copy_error} = window.config.i18n;
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export async function copyToClipboard(content) {
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if (content instanceof Blob) {
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const item = new window.ClipboardItem({[content.type]: content});
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await navigator.clipboard.write([item]);
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} else { // text
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try {
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await navigator.clipboard.writeText(content);
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} catch {
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return fallbackCopyToClipboard(content);
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}
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}
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return true;
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}
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// Fallback to use if navigator.clipboard doesn't exist. Achieved via creating
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// a temporary textarea element, selecting the text, and using document.execCommand
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function fallbackCopyToClipboard(text) {
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if (!document.execCommand) return false;
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const tempTextArea = document.createElement('textarea');
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tempTextArea.value = text;
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// avoid scrolling
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tempTextArea.style.top = 0;
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tempTextArea.style.left = 0;
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tempTextArea.style.position = 'fixed';
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document.body.appendChild(tempTextArea);
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tempTextArea.select();
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// if unsecure (not https), there is no navigator.clipboard, but we can still
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// use document.execCommand to copy to clipboard
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const success = document.execCommand('copy');
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document.body.removeChild(tempTextArea);
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return success;
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}
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// For all DOM elements with [data-clipboard-target] or [data-clipboard-text],
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// this copy-to-clipboard will work for them
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export default function initGlobalCopyToClipboardListener() {
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document.addEventListener('click', (e) => {
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let target = e.target;
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// in case <button data-clipboard-text><svg></button>, so we just search
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// up to 3 levels for performance
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for (let i = 0; i < 3 && target; i++) {
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const text = target.getAttribute('data-clipboard-text') || document.querySelector(target.getAttribute('data-clipboard-target'))?.value;
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if (text) {
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e.preventDefault();
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(async() => {
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const success = await copyToClipboard(text);
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showTemporaryTooltip(target, success ? copy_success : copy_error);
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})();
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break;
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}
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target = target.parentElement;
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}
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});
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}
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