| 1 |
import { __ } from '@wordpress/i18n'; |
| 2 |
import { useBlockProps } from '@wordpress/block-editor'; |
| 3 |
import { useEffect, useRef, useState } from '@wordpress/element'; |
| 4 |
|
| 5 |
import Inspector from './inspector'; |
| 6 |
import Style from './style'; |
| 7 |
import { DEFAULT_CODE_PLACEHOLDER, LANGUAGE_OPTIONS } from './constants'; |
| 8 |
|
| 9 |
const Edit = (props) => { |
| 10 |
const { attributes, setAttributes, clientId, isSelected } = props; |
| 11 |
const { |
| 12 |
blockId, |
| 13 |
blockMeta, |
| 14 |
codeContent, |
| 15 |
language, |
| 16 |
codeVariants = [], |
| 17 |
showCopyButton, |
| 18 |
showHeader, |
| 19 |
showLineNumbers, |
| 20 |
theme, |
| 21 |
resOption, |
| 22 |
fileName, |
| 23 |
showFileIcon, |
| 24 |
fileIcon, |
| 25 |
showTrafficLights, |
| 26 |
} = attributes; |
| 27 |
|
| 28 |
// Combined language list: the primary language/code first, then each |
| 29 |
// non-empty variant. One entry → single-language (as before); more → the |
| 30 |
// header shows a language dropdown to switch the previewed panel. |
| 31 |
const variants = [ |
| 32 |
{ language, codeContent, fileName }, |
| 33 |
...codeVariants.filter((v) => v && (v.codeContent || '').length > 0), |
| 34 |
]; |
| 35 |
const isMulti = variants.length > 1; |
| 36 |
|
| 37 |
const [activeIndex, setActiveIndex] = useState(0); |
| 38 |
const [langOpen, setLangOpen] = useState(false); |
| 39 |
const safeIndex = activeIndex < variants.length ? activeIndex : 0; |
| 40 |
const active = variants[safeIndex] || { language, codeContent, fileName }; |
| 41 |
const languageLabel = (lang) => |
| 42 |
(LANGUAGE_OPTIONS.find((o) => o.value === lang) || {}).label || lang; |
| 43 |
|
| 44 |
// Set unique block ID |
| 45 |
useEffect(() => { |
| 46 |
const BLOCK_PREFIX = 'betterdocs-code-snippet'; |
| 47 |
if (!blockId) { |
| 48 |
setAttributes({ blockId: BLOCK_PREFIX + '-' + clientId.substr(0, 8) }); |
| 49 |
} |
| 50 |
}, []); |
| 51 |
|
| 52 |
// Set block meta |
| 53 |
useEffect(() => { |
| 54 |
setAttributes({ |
| 55 |
blockMeta: { |
| 56 |
desktop: resOption === 'Desktop' ? true : false, |
| 57 |
tab: resOption === 'Tablet' ? true : false, |
| 58 |
mobile: resOption === 'Mobile' ? true : false, |
| 59 |
}, |
| 60 |
}); |
| 61 |
}, [resOption]); |
| 62 |
|
| 63 |
const blockRef = useRef(null); |
| 64 |
|
| 65 |
const blockProps = useBlockProps({ |
| 66 |
className: `betterdocs-code-snippet-block ${blockId}`, |
| 67 |
ref: blockRef |
| 68 |
}); |
| 69 |
|
| 70 |
// Editor-side preview of the copy button: hover tooltip + "Copied!" state, |
| 71 |
// matching the frontend. Placement and the icon swap are handled by CSS |
| 72 |
// (`.show` / `.is-copied`), so this only toggles classes and label text. |
| 73 |
useEffect(() => { |
| 74 |
if (!blockRef.current) return; |
| 75 |
|
| 76 |
const copyButton = blockRef.current.querySelector('.betterdocs-code-snippet-copy-button'); |
| 77 |
const tooltip = blockRef.current.querySelector('.betterdocs-code-snippet-tooltip'); |
| 78 |
|
| 79 |
if (!copyButton || !tooltip) return; |
| 80 |
|
| 81 |
let resetTimer; |
| 82 |
|
| 83 |
const showTooltip = () => tooltip.classList.add('show'); |
| 84 |
const hideTooltip = () => { |
| 85 |
if (copyButton.classList.contains('is-copied')) return; |
| 86 |
tooltip.classList.remove('show'); |
| 87 |
}; |
| 88 |
|
| 89 |
const handleCopyClick = () => { |
| 90 |
clearTimeout(resetTimer); |
| 91 |
copyButton.classList.add('is-copied'); |
| 92 |
tooltip.textContent = __('Copied!', 'betterdocs'); |
| 93 |
tooltip.classList.add('show', 'is-copied'); |
| 94 |
|
| 95 |
resetTimer = setTimeout(() => { |
| 96 |
copyButton.classList.remove('is-copied'); |
| 97 |
tooltip.textContent = __('Copy', 'betterdocs'); |
| 98 |
tooltip.classList.remove('is-copied'); |
| 99 |
if (!copyButton.matches(':hover')) { |
| 100 |
tooltip.classList.remove('show'); |
| 101 |
} |
| 102 |
}, 2000); |
| 103 |
}; |
| 104 |
|
| 105 |
copyButton.addEventListener('mouseenter', showTooltip); |
| 106 |
copyButton.addEventListener('mouseleave', hideTooltip); |
| 107 |
copyButton.addEventListener('blur', hideTooltip); |
| 108 |
copyButton.addEventListener('click', handleCopyClick); |
| 109 |
|
| 110 |
return () => { |
| 111 |
clearTimeout(resetTimer); |
| 112 |
copyButton.removeEventListener('mouseenter', showTooltip); |
| 113 |
copyButton.removeEventListener('mouseleave', hideTooltip); |
| 114 |
copyButton.removeEventListener('blur', hideTooltip); |
| 115 |
copyButton.removeEventListener('click', handleCopyClick); |
| 116 |
}; |
| 117 |
}, [showCopyButton, showHeader, showTrafficLights, showFileIcon]); |
| 118 |
|
| 119 |
const activeLanguage = active.language || 'javascript'; |
| 120 |
const displayContent = active.codeContent || DEFAULT_CODE_PLACEHOLDER; |
| 121 |
|
| 122 |
// Initialize syntax highlighting for editor preview |
| 123 |
useEffect(() => { |
| 124 |
if (!blockRef.current) return; |
| 125 |
|
| 126 |
// Highlight.js is bundled with the plugin (self-hosted, no CDN); URLs |
| 127 |
// come from the localized config in CodeSnippet::register_scripts(). |
| 128 |
const hljsConfig = window.BetterDocsCodeSnippetConfig || {}; |
| 129 |
|
| 130 |
// (Re)apply the theme CSS into the SAME document as the block. The editor |
| 131 |
// renders block previews inside an iframe, so the top document's <head> |
| 132 |
// would NOT style the iframe's code — this is what makes the editor's |
| 133 |
// dark colors identical to the frontend. |
| 134 |
const ensureThemeCss = (doc) => { |
| 135 |
const themeHref = theme === 'dark' ? hljsConfig.cssDark : hljsConfig.cssLight; |
| 136 |
if (!themeHref || !doc || !doc.head) return; |
| 137 |
|
| 138 |
const existing = doc.getElementById('betterdocs-hljs-theme'); |
| 139 |
if (existing && existing.getAttribute('href') === themeHref) return; |
| 140 |
if (existing) existing.remove(); |
| 141 |
|
| 142 |
const link = doc.createElement('link'); |
| 143 |
link.id = 'betterdocs-hljs-theme'; |
| 144 |
link.rel = 'stylesheet'; |
| 145 |
link.href = themeHref; |
| 146 |
doc.head.appendChild(link); |
| 147 |
}; |
| 148 |
|
| 149 |
const loadHighlightJS = () => { |
| 150 |
return new Promise((resolve) => { |
| 151 |
if (window.hljs) { |
| 152 |
resolve(window.hljs); |
| 153 |
return; |
| 154 |
} |
| 155 |
|
| 156 |
if (!hljsConfig.hljsUrl) { |
| 157 |
// No bundled URL — resolve without highlighting rather than hit a CDN. |
| 158 |
resolve(null); |
| 159 |
return; |
| 160 |
} |
| 161 |
|
| 162 |
// The hljs library is a global — load it once in the top document. |
| 163 |
if (!document.getElementById('betterdocs-hljs-script')) { |
| 164 |
const script = document.createElement('script'); |
| 165 |
script.id = 'betterdocs-hljs-script'; |
| 166 |
script.src = hljsConfig.hljsUrl; |
| 167 |
script.onload = () => { |
| 168 |
if (window.hljs) { |
| 169 |
resolve(window.hljs); |
| 170 |
} |
| 171 |
}; |
| 172 |
document.head.appendChild(script); |
| 173 |
} else { |
| 174 |
// Script already exists, wait for it to load |
| 175 |
const checkHljs = () => { |
| 176 |
if (window.hljs) { |
| 177 |
resolve(window.hljs); |
| 178 |
} else { |
| 179 |
setTimeout(checkHljs, 100); |
| 180 |
} |
| 181 |
}; |
| 182 |
checkHljs(); |
| 183 |
} |
| 184 |
}); |
| 185 |
}; |
| 186 |
|
| 187 |
const applyHighlighting = async () => { |
| 188 |
try { |
| 189 |
const codeElement = blockRef.current?.querySelector('.betterdocs-code-snippet-code'); |
| 190 |
|
| 191 |
// Theme CSS must live in the block's document (iframe-safe). |
| 192 |
ensureThemeCss(codeElement ? codeElement.ownerDocument : document); |
| 193 |
|
| 194 |
const hljs = await loadHighlightJS(); |
| 195 |
|
| 196 |
if (codeElement && hljs) { |
| 197 |
// "cURL" has no highlight.js grammar — alias it to bash. |
| 198 |
try { |
| 199 |
if (hljs.registerAliases) { |
| 200 |
hljs.registerAliases('curl', { languageName: 'bash' }); |
| 201 |
} |
| 202 |
} catch (e) {} |
| 203 |
|
| 204 |
// Clear any existing highlighting |
| 205 |
codeElement.removeAttribute('data-highlighted'); |
| 206 |
codeElement.className = `betterdocs-code-snippet-code language-${activeLanguage}`; |
| 207 |
|
| 208 |
// Clear existing highlighted content |
| 209 |
const codeInner = codeElement.querySelector('code'); |
| 210 |
if (codeInner) { |
| 211 |
codeInner.innerHTML = displayContent; |
| 212 |
} |
| 213 |
|
| 214 |
// Apply new highlighting |
| 215 |
hljs.highlightElement(codeElement); |
| 216 |
} |
| 217 |
} catch (error) { |
| 218 |
console.warn('Failed to load or apply syntax highlighting:', error); |
| 219 |
} |
| 220 |
}; |
| 221 |
|
| 222 |
// Small delay to ensure DOM is updated |
| 223 |
const timeoutId = setTimeout(applyHighlighting, 100); |
| 224 |
|
| 225 |
return () => clearTimeout(timeoutId); |
| 226 |
}, [displayContent, activeLanguage, theme, showLineNumbers, safeIndex]); |
| 227 |
|
| 228 |
// Get file icon based on language |
| 229 |
const getLanguageIcon = (lang) => { |
| 230 |
const icons = { |
| 231 |
'javascript': '📄', |
| 232 |
'typescript': '📘', |
| 233 |
'jsx': '⚛️', |
| 234 |
'tsx': '⚛️', |
| 235 |
'html': '🌐', |
| 236 |
'css': '🎨', |
| 237 |
'scss': '🎨', |
| 238 |
'sass': '🎨', |
| 239 |
'less': '🎨', |
| 240 |
'php': '🐘', |
| 241 |
'python': '🐍', |
| 242 |
'java': '☕', |
| 243 |
'csharp': '🔷', |
| 244 |
'cpp': '⚙️', |
| 245 |
'c': '⚙️', |
| 246 |
'ruby': '💎', |
| 247 |
'go': '🐹', |
| 248 |
'rust': '🦀', |
| 249 |
'swift': '🦉', |
| 250 |
'kotlin': '🎯', |
| 251 |
'sql': '🗃️', |
| 252 |
'json': '📋', |
| 253 |
'yaml': '📋', |
| 254 |
'xml': '📄', |
| 255 |
'markdown': '📝', |
| 256 |
'curl': '💻', |
| 257 |
'bash': '💻', |
| 258 |
'shell': '💻', |
| 259 |
'powershell': '💻', |
| 260 |
'dockerfile': '🐳', |
| 261 |
}; |
| 262 |
return icons[lang] || '📄'; |
| 263 |
}; |
| 264 |
|
| 265 |
return ( |
| 266 |
<> |
| 267 |
{isSelected && <Inspector {...props} />} |
| 268 |
<Style {...props} /> |
| 269 |
<div {...blockProps}> |
| 270 |
<div className={`betterdocs-code-snippet-wrapper theme-${theme} ${blockId}${isMulti ? ' is-multi-lang' : ''}`} |
| 271 |
data-language={activeLanguage} |
| 272 |
data-copy-button={showCopyButton ? 'true' : 'false'}> |
| 273 |
{showHeader && ( |
| 274 |
<div className="betterdocs-code-snippet-header betterdocs-file-preview-header"> |
| 275 |
<div className="betterdocs-file-preview-left"> |
| 276 |
{showTrafficLights && ( |
| 277 |
<div className="betterdocs-traffic-lights"> |
| 278 |
<span className="traffic-light traffic-light-red"></span> |
| 279 |
<span className="traffic-light traffic-light-yellow"></span> |
| 280 |
<span className="traffic-light traffic-light-green"></span> |
| 281 |
</div> |
| 282 |
)} |
| 283 |
|
| 284 |
{!isMulti && ( |
| 285 |
<div className="betterdocs-file-info"> |
| 286 |
{showFileIcon && ( |
| 287 |
<div className="betterdocs-file-icon"> |
| 288 |
{fileIcon ? ( |
| 289 |
<img src={fileIcon} alt={__('File icon', 'betterdocs')} /> |
| 290 |
) : ( |
| 291 |
<span className="betterdocs-file-icon-emoji">{getLanguageIcon(activeLanguage)}</span> |
| 292 |
)} |
| 293 |
</div> |
| 294 |
)} |
| 295 |
|
| 296 |
{active.fileName && ( |
| 297 |
<div className="betterdocs-file-name"> |
| 298 |
<span className="file-name-text">{active.fileName}</span> |
| 299 |
</div> |
| 300 |
)} |
| 301 |
</div> |
| 302 |
)} |
| 303 |
</div> |
| 304 |
|
| 305 |
<div className="betterdocs-file-preview-right"> |
| 306 |
{isMulti && ( |
| 307 |
<div className={`betterdocs-code-lang-dropdown${langOpen ? ' is-open' : ''}`}> |
| 308 |
<button |
| 309 |
type="button" |
| 310 |
className="betterdocs-code-lang-toggle" |
| 311 |
onClick={() => setLangOpen(! langOpen)} |
| 312 |
aria-haspopup="listbox" |
| 313 |
aria-expanded={langOpen} |
| 314 |
> |
| 315 |
<span className="betterdocs-code-lang-current"> |
| 316 |
{showFileIcon && ( |
| 317 |
<span className="betterdocs-file-icon-emoji">{getLanguageIcon(activeLanguage)}</span> |
| 318 |
)} |
| 319 |
<span className="betterdocs-code-lang-label">{languageLabel(activeLanguage)}</span> |
| 320 |
</span> |
| 321 |
<svg className="betterdocs-code-lang-caret" width="12" height="12" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg"> |
| 322 |
<path d="M6 9l6 6 6-6" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round" /> |
| 323 |
</svg> |
| 324 |
</button> |
| 325 |
<ul className="betterdocs-code-lang-menu" role="listbox"> |
| 326 |
{variants.map((v, i) => ( |
| 327 |
// eslint-disable-next-line jsx-a11y/click-events-have-key-events, jsx-a11y/no-noninteractive-element-interactions |
| 328 |
<li |
| 329 |
key={i} |
| 330 |
className={`betterdocs-code-lang-option${i === safeIndex ? ' is-active' : ''}`} |
| 331 |
role="option" |
| 332 |
aria-selected={i === safeIndex} |
| 333 |
onClick={() => { setActiveIndex(i); setLangOpen(false); }} |
| 334 |
> |
| 335 |
{showFileIcon && ( |
| 336 |
<span className="betterdocs-file-icon-emoji">{getLanguageIcon(v.language)}</span> |
| 337 |
)} |
| 338 |
<span className="betterdocs-code-lang-label">{languageLabel(v.language)}</span> |
| 339 |
</li> |
| 340 |
))} |
| 341 |
</ul> |
| 342 |
</div> |
| 343 |
)} |
| 344 |
{showCopyButton && ( |
| 345 |
<div className="betterdocs-code-snippet-copy-container"> |
| 346 |
<button className="betterdocs-code-snippet-copy-button" type="button" aria-label={__('Copy code to clipboard', 'betterdocs')}> |
| 347 |
<span className="betterdocs-code-snippet-copy-icon" aria-hidden="true"> |
| 348 |
<svg width="16" height="16" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg"> |
| 349 |
<rect x="9" y="9" width="12.5" height="12.5" rx="3" stroke="currentColor" strokeWidth="1.7"/> |
| 350 |
<path d="M15.5 5.75V5A2.5 2.5 0 0 0 13 2.5H5A2.5 2.5 0 0 0 2.5 5v8A2.5 2.5 0 0 0 5 15.5h.75" stroke="currentColor" strokeWidth="1.7" strokeLinecap="round"/> |
| 351 |
</svg> |
| 352 |
</span> |
| 353 |
<span className="betterdocs-code-snippet-copied-icon" aria-hidden="true"> |
| 354 |
<svg width="16" height="16" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg"> |
| 355 |
<path d="M20 6.5 9.5 17 4 11.5" stroke="currentColor" strokeWidth="2.2" strokeLinecap="round" strokeLinejoin="round"/> |
| 356 |
</svg> |
| 357 |
</span> |
| 358 |
</button> |
| 359 |
<span className="betterdocs-code-snippet-tooltip" role="status" data-copy-label={__('Copy', 'betterdocs')} data-copied-label={__('Copied!', 'betterdocs')} data-error-label={__('Copy failed', 'betterdocs')}>{__('Copy', 'betterdocs')}</span> |
| 360 |
</div> |
| 361 |
)} |
| 362 |
</div> |
| 363 |
</div> |
| 364 |
)} |
| 365 |
<div className="betterdocs-code-snippet-content"> |
| 366 |
{/* The flex row (line numbers + code) lives on the panel, |
| 367 |
mirroring views/templates/parts/code-snippet.php. Without |
| 368 |
this wrapper `.content` stays display:block and the code |
| 369 |
stacks below the line numbers — rendering blank in the |
| 370 |
iframed editor canvas. */} |
| 371 |
<div className="betterdocs-code-snippet-panel is-active"> |
| 372 |
{showLineNumbers && ( |
| 373 |
<div className="betterdocs-code-snippet-line-numbers" aria-hidden="true"> |
| 374 |
{displayContent.split('\n').map((_, index) => ( |
| 375 |
<div key={index} className="line-number"> |
| 376 |
{index + 1} |
| 377 |
</div> |
| 378 |
))} |
| 379 |
</div> |
| 380 |
)} |
| 381 |
<pre className={`betterdocs-code-snippet-code language-${activeLanguage}`}> |
| 382 |
{displayContent} |
| 383 |
</pre> |
| 384 |
</div> |
| 385 |
</div> |
| 386 |
</div> |
| 387 |
</div> |
| 388 |
</> |
| 389 |
); |
| 390 |
}; |
| 391 |
|
| 392 |
export default Edit; |
| 393 |
|
