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import copy from 'copy-to-clipboard'; |
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|
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const containerClass = '.wp-block-kevinbatdorf-code-block-pro'; |
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|
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const sanitize = (str) => |
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str |
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.replace(/[\u2018\u2019]/g, "'") // single quotes |
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.replace(/[\u201C\u201D]/g, '"') // double quotes |
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.replace(/[\u2013\u2014]/g, '-') // en/em dash |
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.replace(/\u2026/g, '...') // ellipsis |
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.replace(/[\u2039\u203A\u00AB\u00BB]/g, (c) => |
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c === '‹' || c === '«' ? '<' : '>', |
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) |
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.replace(/\u00A0/g, ' '); // non-breaking space |
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|
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const handleCopyButton = () => { |
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const buttons = Array.from( |
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document.querySelectorAll( |
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'.code-block-pro-copy-button:not(.cbp-cb-loaded)', |
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), |
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); |
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buttons.forEach((button) => { |
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button.classList.add('cbp-cb-loaded'); |
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// Setting it to block here lets users deactivate the plugin safely |
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button.style.display = 'block'; |
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const handler = (event) => { |
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const { type, key, currentTarget: b } = event; |
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// if keydown event, make sure it's enter or space |
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if (type === 'keydown' && !['Enter', ' '].includes(key)) return; |
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event.preventDefault(); |
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const t = b?.querySelector('textarea'); |
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const source = t ? t?.value : b?.dataset?.code; |
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const code = b?.dataset?.encoded |
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? decodeURIComponent(decodeURIComponent(source)) |
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: source; |
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const content = sanitize(window.cbpCopyOverride?.(code, button) ?? code); |
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copy(content ?? '', { |
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format: 'text/plain', |
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onCopy: (code) => { |
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window.cbpCopyCallback?.(code, button); |
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b.classList.add('cbp-copying'); |
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// Check if there is a data-text-copied attribute |
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const hasTextCopied = b.dataset.copiedText; |
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const innerSpan = b.querySelector('span'); |
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if (hasTextCopied) innerSpan.innerText = hasTextCopied; |
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setTimeout(() => { |
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b.classList.remove('cbp-copying'); |
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if (hasTextCopied) { |
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innerSpan.innerText = b.getAttribute('aria-label'); |
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} |
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}, 2_000); |
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}, |
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}); |
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}; |
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['click', 'keydown'].forEach((evt) => |
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button.addEventListener(evt, handler), |
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); |
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}); |
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}; |
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|
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const handleHighlighter = () => { |
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const codeBlocks = Array.from( |
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document.querySelectorAll(`${containerClass}:not(.cbp-hl-loaded)`), |
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); |
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|
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codeBlocks.forEach((codeBlock) => { |
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codeBlock.classList.add('cbp-hl-loaded'); |
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// Search for highlights |
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const highlighters = new Set( |
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codeBlock.querySelectorAll('.cbp-line-highlight'), |
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); |
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// If the codeblock has .cbp-highlight-hover, then get all lines |
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if (codeBlock.classList.contains('cbp-highlight-hover')) { |
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codeBlock |
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.querySelectorAll('span.line') |
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.forEach((line) => highlighters.add(line)); |
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} |
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|
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if (!highlighters.size) return; |
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|
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// If the code block expands, we need to recalculate the width |
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new ResizeObserver(() => { |
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// find the longest line |
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const lines = codeBlock.querySelectorAll('span.line'); |
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codeBlock.style.setProperty('--cbp-block-width', 'unset'); |
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const longestLine = Array.from(lines).reduce((a, b) => |
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a.offsetWidth > b.offsetWidth ? a : b, |
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); |
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const highestLineHeight = Array.from(lines).reduce((a, b) => |
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a.offsetHeight > b.offsetHeight ? a : b, |
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); |
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codeBlock.style.setProperty( |
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'--cbp-block-height', |
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`${highestLineHeight.offsetHeight}px`, |
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); |
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codeBlock.style.setProperty( |
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'--cbp-block-width', |
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`${longestLine.offsetWidth}px`, |
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); |
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}).observe(codeBlock); |
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|
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// Add the highlighter if not already there |
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highlighters.forEach((highlighter) => { |
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if (highlighter.querySelector('.cbp-line-highlighter')) return; |
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highlighter.insertAdjacentHTML( |
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'beforeend', |
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'<span aria-hidden="true" class="cbp-line-highlighter"></span>', |
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); |
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}); |
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}); |
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}; |
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|
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const handleFontLoading = () => { |
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if (!window.codeBlockPro?.pluginUrl) return; |
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const elements = Array.from( |
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document.querySelectorAll( |
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'[data-code-block-pro-font-family]:not(.cbp-ff-loaded)', |
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) || [], |
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); |
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elements.forEach((e) => e.classList.add('cbp-ff-loaded')); |
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const fontsToLoad = new Set( |
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elements.map((f) => f.dataset.codeBlockProFontFamily).filter(Boolean), |
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); |
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[...fontsToLoad].forEach(async (fontName) => { |
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const [name, ext] = fontName.split('.'); |
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const url = `url(${window.codeBlockPro.pluginUrl}/build/fonts/${name}.${ |
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ext || 'woff2' |
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})`; |
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const font = new FontFace(name, url); |
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await font.load().catch((e) => console.error(e)); |
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document.fonts.add(font); |
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}); |
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}; |
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|
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const handleSeeMore = () => { |
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const seeMoreLines = Array.from( |
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document.querySelectorAll( |
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`${containerClass}:not(.cbp-see-more-loaded) .cbp-see-more-line`, |
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), |
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); |
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seeMoreLines.forEach((line) => { |
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const currentContainer = line.closest(containerClass); |
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currentContainer.classList.add('cbp-see-more-loaded'); |
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const pre = line.closest('pre'); |
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const initialHeight = pre.offsetHeight; |
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let animationSpeed = 0; |
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const transition = line.classList.contains('cbp-see-more-transition'); |
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|
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if (transition) { |
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const lineCount = pre.querySelectorAll('code > *').length; |
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const linesBeforeCurrent = Array.from( |
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line.closest('code').children, |
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).filter((l) => l.offsetTop < line.offsetTop)?.length; |
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animationSpeed = 0.5 + (lineCount - linesBeforeCurrent) * 0.01; |
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pre.style.transition = `max-height ${animationSpeed}s ease-out`; |
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} |
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|
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// if the first child it a span then get the height of that span |
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const headerHeight = |
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currentContainer.children[0].tagName === 'SPAN' |
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? currentContainer.children[0].offsetHeight |
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: 0; |
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const lineHeight = parseFloat(window.getComputedStyle(line).lineHeight); |
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pre.style.maxHeight = `${line.offsetTop + lineHeight - headerHeight}px`; |
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|
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const buttonContainer = line |
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.closest(containerClass) |
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.querySelector('.cbp-see-more-container'); |
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if (!buttonContainer) return; |
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buttonContainer.style.display = 'flex'; |
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const button = buttonContainer.querySelector('.cbp-see-more-simple-btn'); |
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if (!button) return; |
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// Starts off collapsed |
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button.setAttribute('aria-expanded', 'false'); |
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pre.id = `cbp-see-more-${Math.random().toString(36).slice(2)}`; |
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button.setAttribute('aria-controls', pre.id); |
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if (currentContainer.classList.contains('padding-disabled')) { |
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button.classList.remove('cbp-see-more-simple-btn-hover'); |
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} |
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|
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const handle = (event) => { |
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event.preventDefault(); |
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// disable scrolling |
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pre.style.setProperty('overflow', 'hidden', 'important'); |
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setTimeout(() => { |
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pre.style.overflow = 'auto'; |
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}, animationSpeed * 1000); |
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|
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pre.style.maxHeight = `${initialHeight}px`; |
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// If there is data-see-more-collapse-string then we toggle |
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if (!buttonContainer.dataset?.seeMoreCollapseString) { |
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buttonContainer.remove(); |
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return; |
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} |
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// We're letting them collapse it |
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if (button.getAttribute('aria-expanded') === 'true') { |
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button.setAttribute('aria-expanded', 'false'); |
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button.innerText = buttonContainer.dataset.seeMoreString; |
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pre.style.maxHeight = `${line.offsetTop + lineHeight - headerHeight}px`; |
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|
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// Move the scroll so the button is in center view |
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line.scrollIntoView({ |
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behavior: transition ? 'smooth' : 'auto', |
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block: 'center', |
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}); |
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return; |
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} |
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button.setAttribute('aria-expanded', 'true'); |
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button.innerText = buttonContainer.dataset.seeMoreCollapseString; |
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}; |
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button.addEventListener('click', handle); |
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button.addEventListener('keydown', (event) => { |
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if (event.key === 'Enter') handle(event); |
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}); |
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}); |
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}; |
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|
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const init = () => { |
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handleFontLoading(); |
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handleSeeMore(); |
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handleCopyButton(); |
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handleHighlighter(); |
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}; |
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|
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// Functions are idempotent, so we can run them on load, DOMContentLoaded, et al. |
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init(); |
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// Useful for when the DOM is modified or loaded in late |
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window.codeBlockProInit = init; |
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window.addEventListener('DOMContentLoaded', init); |
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window.addEventListener('load', init); |
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|
