67 lines
1.9 KiB
JavaScript
67 lines
1.9 KiB
JavaScript
import { uniqueId } from 'lodash';
|
|
import { __ } from '~/locale';
|
|
import { spriteIcon } from '~/lib/utils/common_utils';
|
|
import { setAttributes } from '~/lib/utils/dom_utils';
|
|
|
|
class CopyCodeButton extends HTMLElement {
|
|
connectedCallback() {
|
|
this.for = uniqueId('code-');
|
|
|
|
this.parentNode.querySelector('pre').setAttribute('id', this.for);
|
|
|
|
this.appendChild(this.createButton());
|
|
}
|
|
|
|
createButton() {
|
|
const button = document.createElement('button');
|
|
|
|
setAttributes(button, {
|
|
type: 'button',
|
|
class: 'btn btn-default btn-md gl-button btn-icon has-tooltip',
|
|
'data-title': __('Copy to clipboard'),
|
|
'data-clipboard-target': `pre#${this.for}`,
|
|
});
|
|
|
|
button.innerHTML = spriteIcon('copy-to-clipboard');
|
|
|
|
return button;
|
|
}
|
|
}
|
|
|
|
function addCodeButton() {
|
|
[...document.querySelectorAll('pre.code.js-syntax-highlight:not(.content-editor-code-block)')]
|
|
.filter((el) => el.getAttribute('lang') !== 'mermaid')
|
|
.filter((el) => !el.closest('.js-markdown-code'))
|
|
.forEach((el) => {
|
|
const copyCodeEl = document.createElement('copy-code');
|
|
copyCodeEl.setAttribute('for', uniqueId('code-'));
|
|
|
|
const wrapper = document.createElement('div');
|
|
wrapper.className = 'gl-relative markdown-code-block js-markdown-code';
|
|
wrapper.appendChild(el.cloneNode(true));
|
|
wrapper.appendChild(copyCodeEl);
|
|
|
|
el.parentNode.insertBefore(wrapper, el);
|
|
|
|
el.remove();
|
|
});
|
|
}
|
|
|
|
export const initCopyCodeButton = (selector = '#content-body') => {
|
|
if (!customElements.get('copy-code')) {
|
|
customElements.define('copy-code', CopyCodeButton);
|
|
}
|
|
|
|
const el = document.querySelector(selector);
|
|
|
|
if (!el) return () => {};
|
|
|
|
const observer = new MutationObserver(() => addCodeButton());
|
|
|
|
observer.observe(document.querySelector(selector), {
|
|
childList: true,
|
|
subtree: true,
|
|
});
|
|
|
|
return () => observer.disconnect();
|
|
};
|