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export const TABLEBERG_SEARCH_CHANGED_EVENT = "tableberg:search-changed"; |
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|
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type SearchPosition = "left" | "right"; |
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|
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interface SearchConfig { |
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enabled: boolean; |
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placeholder: string; |
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position: SearchPosition; |
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highlightColor: string; |
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} |
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|
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interface SearchState { |
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table: HTMLTableElement; |
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tbody: HTMLTableSectionElement; |
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headerEnabled: boolean; |
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footerEnabled: boolean; |
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config: SearchConfig; |
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inputEl: HTMLInputElement; |
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clearButtonEl: HTMLButtonElement; |
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resultsEl: HTMLSpanElement; |
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} |
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|
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interface TableRows { |
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dataRows: HTMLTableRowElement[]; |
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} |
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|
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const SEARCH_HIDDEN_CLASS = "tableberg-search-row--hidden"; |
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const SEARCH_HIGHLIGHT_CLASS = "tableberg-search-highlight"; |
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const TEXT_ELEMENT_SELECTOR = ".tableberg-text-element"; |
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|
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function getTextElementsInRow(row: HTMLTableRowElement): HTMLElement[] { |
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return Array.from(row.querySelectorAll<HTMLElement>(TEXT_ELEMENT_SELECTOR)); |
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} |
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|
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function parseSearchConfig(table: HTMLTableElement): SearchConfig { |
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const enabled = table.dataset.tablebergSearchEnabled === "true"; |
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const position = |
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table.dataset.tablebergSearchPosition === "right" ? "right" : "left"; |
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|
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return { |
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enabled, |
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placeholder: table.dataset.tablebergSearchPlaceholder || "Search...", |
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position, |
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highlightColor: table.dataset.tablebergSearchHighlightColor || "", |
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}; |
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} |
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|
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function getTableRows(state: SearchState): TableRows { |
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const rows = Array.from(state.tbody.rows); |
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const headerOffset = state.headerEnabled ? 1 : 0; |
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const footerOffset = state.footerEnabled ? 1 : 0; |
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const dataEnd = rows.length - footerOffset; |
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|
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return { |
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dataRows: rows.slice(headerOffset, Math.max(headerOffset, dataEnd)), |
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}; |
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} |
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|
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function normalizeSearchTerm(value: string): string { |
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return value.toLowerCase().trim(); |
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} |
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|
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function rowMatchesSearch( |
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row: HTMLTableRowElement, |
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normalizedSearchTerm: string |
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): boolean { |
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if (!normalizedSearchTerm) { |
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return true; |
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} |
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|
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const textElements = getTextElementsInRow(row); |
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if (textElements.length === 0) { |
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return false; |
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} |
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|
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return textElements.some(element => |
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(element.textContent || "").toLowerCase().includes(normalizedSearchTerm) |
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); |
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} |
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|
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function clearRowHighlights(row: HTMLTableRowElement) { |
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const highlights = row.querySelectorAll<HTMLElement>( |
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`mark.${SEARCH_HIGHLIGHT_CLASS}` |
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); |
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|
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highlights.forEach(highlight => { |
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const textNode = document.createTextNode(highlight.textContent || ""); |
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highlight.replaceWith(textNode); |
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}); |
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|
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row.normalize(); |
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} |
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|
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function escapeRegExp(value: string): string { |
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return value.replace(/[.*+?^${}()|[\]\\]/g, "\\$&"); |
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} |
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|
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function highlightTextInElement(element: HTMLElement, escapedTerm: string) { |
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const textNodes: Text[] = []; |
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|
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const walker = document.createTreeWalker(element, NodeFilter.SHOW_TEXT, { |
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acceptNode(node) { |
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if (!node.nodeValue || !node.nodeValue.trim()) { |
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return NodeFilter.FILTER_REJECT; |
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} |
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|
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if (!node.parentElement) { |
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return NodeFilter.FILTER_REJECT; |
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} |
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|
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if (node.parentElement.closest(`mark.${SEARCH_HIGHLIGHT_CLASS}`)) { |
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return NodeFilter.FILTER_REJECT; |
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} |
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|
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return NodeFilter.FILTER_ACCEPT; |
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}, |
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}); |
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|
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let currentNode: Node | null = walker.nextNode(); |
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while (currentNode) { |
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textNodes.push(currentNode as Text); |
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currentNode = walker.nextNode(); |
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} |
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|
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textNodes.forEach(node => { |
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const text = node.nodeValue || ""; |
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const regex = new RegExp(`(${escapedTerm})`, "gi"); |
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const parts = text.split(regex); |
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|
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if (parts.length <= 1) { |
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return; |
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} |
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|
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const fragment = document.createDocumentFragment(); |
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|
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parts.forEach((part, index) => { |
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if (!part) { |
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return; |
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} |
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|
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if (index % 2 === 1) { |
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const mark = document.createElement("mark"); |
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mark.className = SEARCH_HIGHLIGHT_CLASS; |
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mark.textContent = part; |
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fragment.appendChild(mark); |
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return; |
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} |
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|
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fragment.appendChild(document.createTextNode(part)); |
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}); |
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|
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node.replaceWith(fragment); |
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}); |
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} |
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|
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function highlightTextInRow(row: HTMLTableRowElement, term: string) { |
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if (!term) { |
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return; |
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} |
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|
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const textElements = getTextElementsInRow(row); |
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if (textElements.length === 0) { |
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return; |
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} |
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|
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const escapedTerm = escapeRegExp(term); |
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textElements.forEach(element => { |
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highlightTextInElement(element, escapedTerm); |
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}); |
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} |
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|
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function getResultsLabel(matchCount: number): string { |
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if (matchCount <= 0) { |
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return "No results found"; |
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} |
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|
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return matchCount === 1 ? "1 result" : `${matchCount} results`; |
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} |
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|
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function updateResultDisplay( |
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state: SearchState, |
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normalizedSearchTerm: string, |
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matchCount: number |
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) { |
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if (!normalizedSearchTerm) { |
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state.resultsEl.hidden = true; |
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state.resultsEl.textContent = ""; |
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return; |
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} |
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|
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state.resultsEl.hidden = false; |
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state.resultsEl.textContent = getResultsLabel(matchCount); |
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} |
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|
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function applySearch(state: SearchState) { |
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const rawSearchTerm = state.inputEl.value.trim(); |
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const normalizedSearchTerm = normalizeSearchTerm(rawSearchTerm); |
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const { dataRows } = getTableRows(state); |
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|
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let matchCount = 0; |
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|
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for (const row of dataRows) { |
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clearRowHighlights(row); |
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|
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const matches = rowMatchesSearch(row, normalizedSearchTerm); |
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|
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row.dataset.tablebergSearchMatch = matches ? "true" : "false"; |
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row.classList.toggle(SEARCH_HIDDEN_CLASS, !matches); |
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|
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if (matches) { |
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matchCount++; |
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|
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if (normalizedSearchTerm) { |
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highlightTextInRow(row, rawSearchTerm); |
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} |
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} |
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} |
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|
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state.clearButtonEl.hidden = normalizedSearchTerm.length === 0; |
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updateResultDisplay(state, normalizedSearchTerm, matchCount); |
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|
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state.table.dispatchEvent( |
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new CustomEvent(TABLEBERG_SEARCH_CHANGED_EVENT, { |
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detail: { |
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searchTerm: normalizedSearchTerm, |
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matchCount, |
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}, |
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}) |
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); |
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} |
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|
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function createSearchContainer(state: SearchState): HTMLDivElement { |
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const container = document.createElement("div"); |
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container.className = "tableberg-search"; |
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container.style.justifyContent = |
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state.config.position === "right" ? "flex-end" : "flex-start"; |
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|
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const inputWrapper = document.createElement("div"); |
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inputWrapper.className = "tableberg-search__input-wrapper"; |
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|
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const icon = document.createElement("span"); |
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icon.className = "tableberg-search__icon"; |
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icon.setAttribute("aria-hidden", "true"); |
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icon.innerHTML = |
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"<svg width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><circle cx='11' cy='11' r='8'></circle><path d='M21 21l-4.35-4.35'></path></svg>"; |
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|
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state.inputEl.className = "tableberg-search__input"; |
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state.inputEl.type = "text"; |
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state.inputEl.placeholder = state.config.placeholder; |
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|
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state.clearButtonEl.className = "tableberg-search__clear"; |
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state.clearButtonEl.type = "button"; |
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state.clearButtonEl.setAttribute("aria-label", "Clear search"); |
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state.clearButtonEl.hidden = true; |
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state.clearButtonEl.innerHTML = |
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"<svg width='16' height='16' viewBox='0 0 24 24' fill='currentColor'><path d='M19 6.41L17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12z'></path></svg>"; |
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|
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state.resultsEl.className = "tableberg-search__results"; |
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state.resultsEl.hidden = true; |
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|
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inputWrapper.appendChild(icon); |
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inputWrapper.appendChild(state.inputEl); |
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inputWrapper.appendChild(state.clearButtonEl); |
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|
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container.appendChild(inputWrapper); |
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container.appendChild(state.resultsEl); |
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|
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return container; |
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} |
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|
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function setupSearch(table: HTMLTableElement) { |
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if (table.dataset.tablebergSearchInitialized === "true") { |
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return; |
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} |
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|
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const config = parseSearchConfig(table); |
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if (!config.enabled) { |
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return; |
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} |
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|
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const tbody = table.tBodies.item(0); |
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if (!tbody) { |
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return; |
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} |
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|
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const state: SearchState = { |
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table, |
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tbody, |
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headerEnabled: table.dataset.tablebergHeader === "true", |
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footerEnabled: table.dataset.tablebergFooter === "true", |
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config, |
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inputEl: document.createElement("input"), |
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clearButtonEl: document.createElement("button"), |
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resultsEl: document.createElement("span"), |
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}; |
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|
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if (state.config.highlightColor) { |
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table.style.setProperty( |
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"--tableberg-search-highlight-color", |
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state.config.highlightColor |
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); |
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} |
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|
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const searchContainer = createSearchContainer(state); |
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table.insertAdjacentElement("beforebegin", searchContainer); |
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|
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state.inputEl.addEventListener("input", () => { |
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applySearch(state); |
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}); |
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|
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state.clearButtonEl.addEventListener("click", () => { |
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state.inputEl.value = ""; |
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applySearch(state); |
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state.inputEl.focus(); |
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}); |
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|
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applySearch(state); |
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table.dataset.tablebergSearchInitialized = "true"; |
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} |
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|
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export function initializeSearch() { |
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const tables = Array.from( |
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document.querySelectorAll<HTMLTableElement>( |
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".wp-block-tableberg[data-tableberg-search-enabled='true']" |
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) |
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); |
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|
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for (const table of tables) { |
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setupSearch(table); |
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} |
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} |
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|
