| 1 |
import { useBlockProps } from "@wordpress/block-editor"; |
| 2 |
import { useSelect, useDispatch } from "@wordpress/data"; |
| 3 |
import { useEffect, useMemo, useRef, useState, useCallback } from "@wordpress/element"; |
| 4 |
import { usePanelBodyContext } from "../../context"; |
| 5 |
import { buildNestedStructure, flattenTOC, removePluginContent } from "./helper"; |
| 6 |
import { |
| 7 |
Icon1, |
| 8 |
Icon10, |
| 9 |
Icon11, |
| 10 |
Icon13, |
| 11 |
Icon14, |
| 12 |
Icon15, |
| 13 |
Icon3, |
| 14 |
Icon5, |
| 15 |
Icon7, |
| 16 |
Icon8, |
| 17 |
Icon9, |
| 18 |
} from "../../icons/collapsibleIcons"; |
| 19 |
|
| 20 |
export default function TocRender({ attributes }) { |
| 21 |
const { |
| 22 |
tocHeading, |
| 23 |
supportedHeadingTag, |
| 24 |
listStyle, |
| 25 |
tocAlignment, |
| 26 |
listHierarchy, |
| 27 |
copyLink, |
| 28 |
tocCollapsed, |
| 29 |
collapsedInitially, |
| 30 |
childItemCollapsible, |
| 31 |
CollapsibleIconSource, |
| 32 |
collapseText, |
| 33 |
expandText, |
| 34 |
CollapsibleButtonType, |
| 35 |
collapsibleColor, |
| 36 |
collapsibleIconPosition, |
| 37 |
childCollapsibleIconSource, |
| 38 |
preset, |
| 39 |
} = attributes; |
| 40 |
|
| 41 |
const { togglePanelBody } = usePanelBodyContext(); |
| 42 |
|
| 43 |
const blockProps = useBlockProps(); |
| 44 |
const [headings, setHeadings] = useState([]); |
| 45 |
const [expandedItems, setExpandedItems] = useState([]); |
| 46 |
const [isTocExpanded, setIsTocExpanded] = useState(!collapsedInitially); |
| 47 |
const [selectedItem, setSelectedItem] = useState(null); |
| 48 |
const containerRef = useRef(null); |
| 49 |
const indicatorRef = useRef(null); |
| 50 |
const [indicatorStyle, setIndicatorStyle] = useState({ top: 0, height: 0 }); |
| 51 |
const itemRefs = useRef({}); // Store refs for each item |
| 52 |
|
| 53 |
// Log when selectedItem changes |
| 54 |
useEffect(() => {}, [selectedItem]); |
| 55 |
|
| 56 |
const postContent = useSelect((select) => { |
| 57 |
const content = select("core/editor").getEditedPostContent(); |
| 58 |
return removePluginContent(content); |
| 59 |
}, []); |
| 60 |
|
| 61 |
const dummyHeadingElements = [ |
| 62 |
{ |
| 63 |
tagName: "H2", |
| 64 |
className: "wp-block-heading", |
| 65 |
id: "", |
| 66 |
textContent: "Dummy Introduction", |
| 67 |
}, |
| 68 |
{ |
| 69 |
tagName: "H3", |
| 70 |
className: "wp-block-heading", |
| 71 |
id: "overview-section", |
| 72 |
textContent: "Dummy Overview Section", |
| 73 |
}, |
| 74 |
{ |
| 75 |
tagName: "H4", |
| 76 |
className: "wp-block-heading", |
| 77 |
id: "", |
| 78 |
textContent: "Dummy Details", |
| 79 |
}, |
| 80 |
{ |
| 81 |
tagName: "H2", |
| 82 |
className: "wp-block-heading", |
| 83 |
id: "", |
| 84 |
textContent: "Dummy Conclusion", |
| 85 |
}, |
| 86 |
{ |
| 87 |
tagName: "H3", |
| 88 |
className: "wp-block-heading", |
| 89 |
id: "final-thoughts", |
| 90 |
textContent: "Dummy Final Thoughts", |
| 91 |
}, |
| 92 |
]; |
| 93 |
|
| 94 |
// Parse headings and add IDs if missing |
| 95 |
useEffect(() => { |
| 96 |
if (!postContent) { |
| 97 |
return; |
| 98 |
} |
| 99 |
|
| 100 |
const parser = new DOMParser(); |
| 101 |
const doc = parser.parseFromString(postContent, "text/html"); |
| 102 |
const headingSelector = supportedHeadingTag?.map((tag) => tag.value).join(", ") || "h1,h2,h3,h4,h5,h6"; |
| 103 |
|
| 104 |
const headingElements = Array.from(doc.querySelectorAll(headingSelector)).filter((el) => { |
| 105 |
let parent = el.parentElement; |
| 106 |
while (parent) { |
| 107 |
const classList = parent.classList || []; |
| 108 |
// Skip headings inside unwanted blocks |
| 109 |
if (classList.contains("wp-block-comments") || classList.contains("wp-block-query")) { |
| 110 |
return false; |
| 111 |
} |
| 112 |
parent = parent.parentElement; |
| 113 |
} |
| 114 |
// Keep any heading that's not empty |
| 115 |
return el.textContent.trim() !== ""; |
| 116 |
}); |
| 117 |
|
| 118 |
const nestedHeadings = buildNestedStructure(headingElements.length ? headingElements : dummyHeadingElements); |
| 119 |
setHeadings(nestedHeadings); |
| 120 |
}, [postContent, buildNestedStructure, setHeadings]); |
| 121 |
|
| 122 |
// Initialize headingItems |
| 123 |
const headingItems = useMemo(() => { |
| 124 |
return listHierarchy ? headings : flattenTOC(headings); |
| 125 |
}, [listHierarchy, headings]); |
| 126 |
|
| 127 |
// Expand all parent items with children initially |
| 128 |
useEffect(() => { |
| 129 |
const parentIds = []; |
| 130 |
const traverse = (items) => { |
| 131 |
items.forEach((item) => { |
| 132 |
if (item.children?.length > 0) { |
| 133 |
parentIds.push(item.id); |
| 134 |
traverse(item.children); |
| 135 |
} |
| 136 |
}); |
| 137 |
}; |
| 138 |
traverse(headingItems); |
| 139 |
setExpandedItems(parentIds); |
| 140 |
}, [headingItems]); |
| 141 |
|
| 142 |
// ---- Indicator Logic (refactored) ---- |
| 143 |
const updateIndicatorPosition = useCallback(() => { |
| 144 |
if (containerRef.current && indicatorRef.current && selectedItem !== null) { |
| 145 |
const itemElement = itemRefs.current[selectedItem]; |
| 146 |
|
| 147 |
if (itemElement) { |
| 148 |
const linkWrapper = itemElement.querySelector(".sps-toc-link-wrapper"); |
| 149 |
|
| 150 |
if (linkWrapper) { |
| 151 |
const containerRect = containerRef.current.getBoundingClientRect(); |
| 152 |
const linkWrapperRect = linkWrapper.getBoundingClientRect(); |
| 153 |
const relativeTop = linkWrapperRect.top - containerRect.top; |
| 154 |
|
| 155 |
setIndicatorStyle({ |
| 156 |
top: relativeTop, |
| 157 |
height: linkWrapperRect.height, |
| 158 |
}); |
| 159 |
} |
| 160 |
} |
| 161 |
} |
| 162 |
}, [selectedItem, preset]); |
| 163 |
|
| 164 |
// Run when selection or TOC changes |
| 165 |
useEffect(() => { |
| 166 |
if (["presetThree", "presetFour", "presetFive"].includes(preset)) { |
| 167 |
// Add a small delay to ensure DOM has updated |
| 168 |
const timer = setTimeout(() => { |
| 169 |
updateIndicatorPosition(); |
| 170 |
}, 50); |
| 171 |
return () => clearTimeout(timer); |
| 172 |
} |
| 173 |
}, [updateIndicatorPosition, isTocExpanded, headingItems, preset, selectedItem, expandedItems]); |
| 174 |
|
| 175 |
// Run on window resize |
| 176 |
useEffect(() => { |
| 177 |
if (!["presetThree", "presetFour", "presetFive"].includes(preset)) return; |
| 178 |
|
| 179 |
const handleResize = () => { |
| 180 |
requestAnimationFrame(updateIndicatorPosition); |
| 181 |
}; |
| 182 |
|
| 183 |
window.addEventListener("resize", handleResize); |
| 184 |
return () => window.removeEventListener("resize", handleResize); |
| 185 |
}, [updateIndicatorPosition, preset]); |
| 186 |
|
| 187 |
// ---- TOC Behavior ---- |
| 188 |
const toggleItem = (itemId) => { |
| 189 |
setExpandedItems((prev) => (prev.includes(itemId) ? prev.filter((id) => id !== itemId) : [...prev, itemId])); |
| 190 |
}; |
| 191 |
|
| 192 |
const toggleToc = () => { |
| 193 |
setIsTocExpanded(!isTocExpanded); |
| 194 |
togglePanelBody("collapsible"); |
| 195 |
}; |
| 196 |
|
| 197 |
// Icon maps |
| 198 |
const iconMap = { |
| 199 |
one: Icon1, |
| 200 |
two: Icon3, |
| 201 |
three: Icon5, |
| 202 |
four: isTocExpanded ? Icon8 : Icon7, |
| 203 |
five: isTocExpanded ? Icon10 : Icon9, |
| 204 |
six: Icon11, |
| 205 |
seven: isTocExpanded ? Icon14 : Icon13, |
| 206 |
eight: Icon15, |
| 207 |
}; |
| 208 |
|
| 209 |
const TocItem = ({ item, depth = 0 }) => { |
| 210 |
const isExpanded = expandedItems.includes(item.id); |
| 211 |
const hasChildren = item.children?.length > 0; |
| 212 |
const isSelected = selectedItem === item.id; |
| 213 |
|
| 214 |
const childIconMap = { |
| 215 |
one: Icon1, |
| 216 |
two: Icon3, |
| 217 |
three: Icon5, |
| 218 |
four: isExpanded ? Icon8 : Icon7, |
| 219 |
five: isExpanded ? Icon10 : Icon9, |
| 220 |
six: Icon11, |
| 221 |
seven: isExpanded ? Icon14 : Icon13, |
| 222 |
eight: Icon15, |
| 223 |
}; |
| 224 |
const ChildIconComponent = childIconMap[childCollapsibleIconSource] || null; |
| 225 |
|
| 226 |
// Store ref for this item |
| 227 |
const setItemRef = (element) => { |
| 228 |
if (element) { |
| 229 |
itemRefs.current[item.id] = element; |
| 230 |
} |
| 231 |
}; |
| 232 |
|
| 233 |
return ( |
| 234 |
<li |
| 235 |
ref={setItemRef} |
| 236 |
className={`sps-toc-item ${hasChildren ? "has-children" : ""}`} |
| 237 |
data-level={item.level} |
| 238 |
data-depth={depth} |
| 239 |
data-item-id={item.id} |
| 240 |
> |
| 241 |
<div |
| 242 |
className={`sps-toc-link-wrapper sps-toc-${tocAlignment} ${isSelected ? "sps-toc-selected-background" : ""}`} |
| 243 |
> |
| 244 |
<a |
| 245 |
href={`#${item.id}`} |
| 246 |
className={`sps-toc-link ${isSelected ? "sps-toc-link-selected" : ""}`} |
| 247 |
onClick={(e) => { |
| 248 |
e.preventDefault(); |
| 249 |
// Log what we're setting as selected |
| 250 |
|
| 251 |
setSelectedItem(item.id); |
| 252 |
const headingElement = document.getElementById(item.id); |
| 253 |
if (headingElement) { |
| 254 |
headingElement.scrollIntoView({ |
| 255 |
behavior: "smooth", |
| 256 |
block: "start", |
| 257 |
}); |
| 258 |
} |
| 259 |
}} |
| 260 |
> |
| 261 |
{listStyle !== "none" && listStyle !== "bullet" ? ( |
| 262 |
<span className="sps-toc-number"></span> |
| 263 |
) : null} |
| 264 |
<span className="sps-toc-text">{item.text}</span> |
| 265 |
</a> |
| 266 |
|
| 267 |
<div className="sps-toc-actions"> |
| 268 |
{copyLink && ( |
| 269 |
<button className="sps-toc-copy" title="Copy link" aria-label="Copy link to this section"> |
| 270 |
# |
| 271 |
</button> |
| 272 |
)} |
| 273 |
|
| 274 |
{hasChildren && childItemCollapsible && ( |
| 275 |
<button |
| 276 |
className="sps-toc-toggle" |
| 277 |
onClick={(e) => { |
| 278 |
e.preventDefault(); |
| 279 |
e.stopPropagation(); |
| 280 |
toggleItem(item.id); |
| 281 |
}} |
| 282 |
aria-label={isExpanded ? "Collapse section" : "Expand section"} |
| 283 |
aria-expanded={isExpanded} |
| 284 |
> |
| 285 |
<ChildIconComponent color={collapsibleColor.color} isTocExpanded={isExpanded} /> |
| 286 |
</button> |
| 287 |
)} |
| 288 |
</div> |
| 289 |
</div> |
| 290 |
|
| 291 |
{hasChildren && |
| 292 |
(childItemCollapsible ? ( |
| 293 |
isExpanded && ( |
| 294 |
<ul className="sps-toc-sublist"> |
| 295 |
{item.children.map((child) => ( |
| 296 |
<TocItem key={child.id} item={child} depth={depth + 1} /> |
| 297 |
))} |
| 298 |
</ul> |
| 299 |
) |
| 300 |
) : ( |
| 301 |
<ul className="sps-toc-sublist"> |
| 302 |
{item.children.map((child) => ( |
| 303 |
<TocItem key={child.id} item={child} depth={depth + 1} /> |
| 304 |
))} |
| 305 |
</ul> |
| 306 |
))} |
| 307 |
</li> |
| 308 |
); |
| 309 |
}; |
| 310 |
|
| 311 |
if (!headingItems.length) { |
| 312 |
return <p {...blockProps}>No headings found in this post for table of content.</p>; |
| 313 |
} |
| 314 |
|
| 315 |
const IconComponent = iconMap[CollapsibleIconSource] || null; |
| 316 |
|
| 317 |
return ( |
| 318 |
<div {...blockProps} className="sps-toc-wrapper"> |
| 319 |
<div className="sps-toc-header-row"> |
| 320 |
<div onClick={() => togglePanelBody("heading")} className="sps-toc-header"> |
| 321 |
<strong className="sps-toc-title">{tocHeading}</strong> |
| 322 |
{IconComponent && |
| 323 |
collapsibleIconPosition === "besideTitle" && |
| 324 |
CollapsibleButtonType === "icon" && |
| 325 |
tocCollapsed && ( |
| 326 |
<button |
| 327 |
className="sps-toc-main-toggle" |
| 328 |
onClick={toggleToc} |
| 329 |
aria-label={`${isTocExpanded ? "Collapse" : "Expand"} table of contents`} |
| 330 |
aria-expanded={isTocExpanded} |
| 331 |
> |
| 332 |
<IconComponent color={collapsibleColor.color} isTocExpanded={isTocExpanded} /> |
| 333 |
</button> |
| 334 |
)} |
| 335 |
</div> |
| 336 |
{tocCollapsed && ( |
| 337 |
<div className="sp-main-collapse-toggle"> |
| 338 |
{(collapsibleIconPosition === "right" || CollapsibleButtonType !== "icon") && ( |
| 339 |
<button |
| 340 |
className="sps-toc-main-toggle" |
| 341 |
onClick={toggleToc} |
| 342 |
aria-label={`${isTocExpanded ? "Collapse" : "Expand"} table of contents`} |
| 343 |
aria-expanded={isTocExpanded} |
| 344 |
> |
| 345 |
{CollapsibleButtonType === "icon" |
| 346 |
? IconComponent && ( |
| 347 |
<IconComponent |
| 348 |
color={collapsibleColor.color} |
| 349 |
isTocExpanded={isTocExpanded} |
| 350 |
/> |
| 351 |
) |
| 352 |
: isTocExpanded |
| 353 |
? collapseText |
| 354 |
: expandText} |
| 355 |
</button> |
| 356 |
)} |
| 357 |
</div> |
| 358 |
)} |
| 359 |
</div> |
| 360 |
|
| 361 |
{isTocExpanded && ( |
| 362 |
<div |
| 363 |
onClick={() => togglePanelBody("tocBody")} |
| 364 |
className={`sps-toc-container ${preset}`} |
| 365 |
ref={containerRef} |
| 366 |
> |
| 367 |
{["presetThree", "presetFour", "presetFive"].includes(preset) && ( |
| 368 |
<div |
| 369 |
className="sps-toc-indicator" |
| 370 |
ref={indicatorRef} |
| 371 |
style={{ |
| 372 |
top: `${indicatorStyle.top}px`, |
| 373 |
height: `${indicatorStyle.height}px`, |
| 374 |
}} |
| 375 |
/> |
| 376 |
)} |
| 377 |
<ul className={`sps-toc-list sps-toc-style-${listStyle}`}> |
| 378 |
{headingItems.map((heading) => ( |
| 379 |
<TocItem key={heading.id} item={heading} depth={0} /> |
| 380 |
))} |
| 381 |
</ul> |
| 382 |
</div> |
| 383 |
)} |
| 384 |
</div> |
| 385 |
); |
| 386 |
} |
| 387 |
|
