Add select-search userscript and bookmarklet
Makes any <select> with many options searchable, for web apps whose dropdowns have no search. The original <select> stays in the DOM and remains the source of truth: choosing an option sets selectedIndex and fires native input/change events, so the host application and its form submission are unaffected. Handles option lists that the app repopulates at runtime via a per-select MutationObserver, and new selects appearing after AJAX via a document-level one. Filtering is substring-based, accent-insensitive and multi-token. Built into both a Tampermonkey userscript and a bookmarklet from one source. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
This commit is contained in:
Glenn Goossens
Claude Opus 5
Vendored
+457
@@ -0,0 +1,457 @@
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// ==UserScript==
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// @name Doorzoekbare dropdowns (select-search)
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// @namespace https://github.com/glgoose/select-search
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// @version 1.0.0
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// @description Geeft elke <select> met veel opties een zoekveld met substring-zoeken.
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// @author glgoose
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// @license MIT
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// @homepageURL https://github.com/glgoose/select-search
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// @supportURL https://github.com/glgoose/select-search/issues
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// @downloadURL https://raw.githubusercontent.com/glgoose/select-search/main/dist/select-search.user.js
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// @updateURL https://raw.githubusercontent.com/glgoose/select-search/main/dist/select-search.user.js
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// @match https://bipp.biotechpartner.be/web/*
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// @run-at document-idle
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// @grant none
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// @noframes false
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// ==/UserScript==
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/*
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* select-search - maakt elke <select> met veel opties doorzoekbaar.
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*
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* Het originele <select> blijft in de DOM en blijft de bron van waarheid:
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* het wordt enkel visueel verborgen. Selecteren gebeurt via selectedIndex +
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* native input/change events, zodat de applicatie niets merkt van de ingreep.
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*/
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(function () {
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'use strict';
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if (window.__selectSearchLoaded) {
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if (typeof window.__selectSearchScan === 'function') window.__selectSearchScan();
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return;
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}
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window.__selectSearchLoaded = true;
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// kleinere dropdowns laten we met rust; hoogstens MAX_RENDER treffers tekenen
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var MIN_OPTIONS = 10;
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var MAX_RENDER = 200;
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var uid = 0;
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/* ---------------------------------------------------------------- utils */
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function normMap(s) {
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// Genormaliseerde (accentloze, lowercase) string + index-mapping terug
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// naar de originele string, zodat we treffers kunnen highlighten.
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var out = '', map = [];
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for (var i = 0; i < s.length; i++) {
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var c = s.charAt(i).normalize('NFD').replace(/[\u0300-\u036f]/g, '').toLowerCase();
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for (var j = 0; j < c.length; j++) { out += c.charAt(j); map.push(i); }
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}
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return { n: out, map: map };
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}
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function escapeHtml(s) {
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return s.replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>');
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}
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function tokenize(q) {
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return normMap(q).n.split(/\s+/).filter(function (t) { return t.length > 0; });
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}
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function debounce(fn, ms) {
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var t = null;
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return function () {
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if (t) clearTimeout(t);
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t = setTimeout(function () { t = null; fn(); }, ms);
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};
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}
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/* ------------------------------------------------------------ highlight */
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function highlight(item, tokens) {
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if (!tokens.length) return escapeHtml(item.label);
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var ranges = [];
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for (var t = 0; t < tokens.length; t++) {
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var tok = tokens[t], from = 0, idx;
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while ((idx = item.norm.n.indexOf(tok, from)) !== -1) {
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var start = item.norm.map[idx];
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var end = item.norm.map[idx + tok.length - 1] + 1;
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ranges.push([start, end]);
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from = idx + tok.length;
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}
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}
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if (!ranges.length) return escapeHtml(item.label);
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ranges.sort(function (a, b) { return a[0] - b[0]; });
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var merged = [ranges[0].slice()];
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for (var r = 1; r < ranges.length; r++) {
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var last = merged[merged.length - 1];
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if (ranges[r][0] <= last[1]) last[1] = Math.max(last[1], ranges[r][1]);
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else merged.push(ranges[r].slice());
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}
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var html = '', pos = 0;
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for (var m = 0; m < merged.length; m++) {
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html += escapeHtml(item.label.slice(pos, merged[m][0]));
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html += '<mark>' + escapeHtml(item.label.slice(merged[m][0], merged[m][1])) + '</mark>';
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pos = merged[m][1];
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}
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return html + escapeHtml(item.label.slice(pos));
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}
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/* ----------------------------------------------------------------- css */
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var CSS = [
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':host{all:initial;display:inline-block;vertical-align:middle;max-width:100%}',
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'*{box-sizing:border-box;font:inherit}',
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'.box{position:relative;display:block;width:100%}',
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'input{width:100%;padding:2px 22px 2px 4px;border:1px solid #767676;border-radius:2px;',
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'background:#fff;color:#000;font:13px/1.4 system-ui,-apple-system,"Segoe UI",sans-serif;',
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'height:100%;min-height:22px}',
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'input:focus{outline:none;border-color:#0b57d0;box-shadow:0 0 0 1px #0b57d0}',
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'.caret{position:absolute;right:6px;top:50%;transform:translateY(-50%);pointer-events:none;',
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'border:4px solid transparent;border-top-color:#444;margin-top:2px}',
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'ul{position:fixed;z-index:2147483647;margin:0;padding:2px 0;list-style:none;overflow-y:auto;',
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'background:#fff;color:#000;border:1px solid #b0b0b0;border-radius:3px;',
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'box-shadow:0 4px 14px rgba(0,0,0,.22);',
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'font:13px/1.5 system-ui,-apple-system,"Segoe UI",sans-serif;display:none}',
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'ul.open{display:block}',
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'li{padding:3px 8px;cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}',
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'li.active{background:#0b57d0;color:#fff}',
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'li.active mark{background:#ffe08a;color:#000}',
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'li.dis{color:#999;cursor:default}',
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'li.note{color:#666;cursor:default;font-style:italic;padding-top:5px}',
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'li.empty{color:#666;cursor:default}',
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'mark{background:#ffe08a;color:inherit;padding:0}',
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'.grp{color:#777;font-size:11px;margin-left:6px}',
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'li.active .grp{color:#dbe6fb}'
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].join('');
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/* ------------------------------------------------------------- enhance */
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function enhance(select) {
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var doc = select.ownerDocument;
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var win = doc.defaultView || window;
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var id = 'ss' + (++uid);
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var rect = select.getBoundingClientRect();
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var wrap = doc.createElement('span');
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wrap.className = 'select-search-wrap';
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if (rect.width) wrap.style.width = rect.width + 'px';
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if (rect.height) wrap.style.height = rect.height + 'px';
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select.parentNode.insertBefore(wrap, select.nextSibling);
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var root = wrap.attachShadow({ mode: 'open' });
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var style = doc.createElement('style');
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style.textContent = CSS;
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var box = doc.createElement('span');
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box.className = 'box';
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var input = doc.createElement('input');
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input.type = 'text';
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input.setAttribute('role', 'combobox');
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input.setAttribute('aria-expanded', 'false');
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input.setAttribute('aria-autocomplete', 'list');
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input.setAttribute('aria-controls', id + '-list');
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input.setAttribute('autocomplete', 'off');
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input.setAttribute('spellcheck', 'false');
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input.title = 'Typ om te zoeken. Alt+klik zet het originele keuzemenu terug.';
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var caret = doc.createElement('span');
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caret.className = 'caret';
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var list = doc.createElement('ul');
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list.id = id + '-list';
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list.setAttribute('role', 'listbox');
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box.appendChild(input);
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box.appendChild(caret);
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root.appendChild(style);
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root.appendChild(box);
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root.appendChild(list);
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// Origineel blijft bestaan (form submit, app-code), maar onzichtbaar.
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var prevStyle = select.getAttribute('style');
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select.style.position = 'absolute';
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select.style.opacity = '0';
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select.style.pointerEvents = 'none';
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select.style.width = (rect.width || 1) + 'px';
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select.style.height = (rect.height || 1) + 'px';
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select.dataset.ssEnhanced = '1';
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var items = [], shown = [], active = -1, open = false;
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function readOptions() {
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items = [];
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for (var i = 0; i < select.options.length; i++) {
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var o = select.options[i];
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var label = (o.textContent || '').replace(/\s+/g, ' ').trim();
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var grp = o.parentNode && o.parentNode.tagName === 'OPTGROUP'
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? (o.parentNode.label || '') : '';
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items.push({
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index: i,
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label: label,
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group: grp,
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disabled: o.disabled,
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norm: normMap(grp ? label + ' ' + grp : label)
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});
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}
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}
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function currentLabel() {
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var o = select.options[select.selectedIndex];
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return o ? (o.textContent || '').replace(/\s+/g, ' ').trim() : '';
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}
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function syncFromSelect() {
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readOptions();
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if (!open) input.value = currentLabel();
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}
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function position() {
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var r = input.getBoundingClientRect();
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var below = win.innerHeight - r.bottom - 6;
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var above = r.top - 6;
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var down = below >= 160 || below >= above;
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list.style.left = r.left + 'px';
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list.style.minWidth = r.width + 'px';
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list.style.maxWidth = Math.max(r.width, Math.min(560, win.innerWidth - r.left - 8)) + 'px';
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list.style.maxHeight = Math.max(120, (down ? below : above)) + 'px';
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if (down) {
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list.style.top = r.bottom + 2 + 'px';
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list.style.bottom = 'auto';
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} else {
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list.style.top = 'auto';
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list.style.bottom = (win.innerHeight - r.top + 2) + 'px';
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}
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}
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function filter(q) {
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var tokens = tokenize(q);
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if (!tokens.length) return items.slice();
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var starts = [], rest = [];
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for (var i = 0; i < items.length; i++) {
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var n = items[i].norm.n, ok = true;
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for (var t = 0; t < tokens.length; t++) {
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if (n.indexOf(tokens[t]) === -1) { ok = false; break; }
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}
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if (!ok) continue;
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(n.indexOf(tokens[0]) === 0 ? starts : rest).push(items[i]);
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}
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return starts.concat(rest);
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}
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function render(q) {
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var tokens = tokenize(q);
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shown = filter(q);
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var html = '';
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if (!shown.length) {
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html = '<li class="empty">Geen resultaten</li>';
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} else {
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var n = Math.min(shown.length, MAX_RENDER);
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for (var i = 0; i < n; i++) {
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var it = shown[i];
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html += '<li role="option" id="' + id + '-o' + i + '" data-i="' + i + '"'
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+ (it.disabled ? ' class="dis" aria-disabled="true"' : '') + '>'
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+ highlight(it, tokens)
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+ (it.group ? '<span class="grp">' + escapeHtml(it.group) + '</span>' : '')
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+ '</li>';
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}
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if (shown.length > n) {
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html += '<li class="note">nog ' + (shown.length - n) + ' resultaten, verfijn je zoekterm</li>';
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}
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}
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list.innerHTML = html;
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shown = shown.slice(0, MAX_RENDER);
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setActive(shown.length ? 0 : -1, false);
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}
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function setActive(i, scroll) {
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var nodes = list.querySelectorAll('li[data-i]');
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for (var k = 0; k < nodes.length; k++) nodes[k].classList.remove('active');
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active = i;
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if (i < 0 || i >= nodes.length) {
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input.removeAttribute('aria-activedescendant');
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return;
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}
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nodes[i].classList.add('active');
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input.setAttribute('aria-activedescendant', nodes[i].id);
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if (scroll !== false) {
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var li = nodes[i], top = li.offsetTop, bot = top + li.offsetHeight;
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if (top < list.scrollTop) list.scrollTop = top;
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else if (bot > list.scrollTop + list.clientHeight) list.scrollTop = bot - list.clientHeight;
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}
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}
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function openList(q) {
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render(q === undefined ? '' : q);
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list.classList.add('open');
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input.setAttribute('aria-expanded', 'true');
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open = true;
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position();
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win.addEventListener('scroll', position, true);
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win.addEventListener('resize', position);
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}
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function closeList(restore) {
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list.classList.remove('open');
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input.setAttribute('aria-expanded', 'false');
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input.removeAttribute('aria-activedescendant');
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open = false;
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active = -1;
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win.removeEventListener('scroll', position, true);
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win.removeEventListener('resize', position);
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if (restore !== false) input.value = currentLabel();
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}
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function choose(i) {
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var it = shown[i];
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if (!it || it.disabled) return;
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select.selectedIndex = it.index;
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input.value = it.label;
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closeList(false);
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fire(select, 'input');
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fire(select, 'change');
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}
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function fire(el, type) {
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var ev;
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try {
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ev = new Event(type, { bubbles: true, cancelable: false });
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} catch (e) {
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ev = doc.createEvent('HTMLEvents');
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ev.initEvent(type, true, false);
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}
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el.dispatchEvent(ev);
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// Legacy apps binden vaak via jQuery; native events bereiken die handlers
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// wel, maar een expliciete trigger dekt ook .change()-only bindings.
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var jq = win.jQuery || win.$;
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if (jq && jq.fn && typeof jq === 'function') {
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try { jq(el).trigger(type); } catch (e2) { /* stil */ }
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}
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}
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function detach() {
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obs.disconnect();
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select.removeEventListener('change', onSelectChange);
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win.removeEventListener('scroll', position, true);
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win.removeEventListener('resize', position);
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if (prevStyle === null) select.removeAttribute('style');
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else select.setAttribute('style', prevStyle);
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delete select.dataset.ssEnhanced;
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select.dataset.nosearch = '1';
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if (wrap.parentNode) wrap.parentNode.removeChild(wrap);
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}
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/* -------------------------------------------------------- listeners */
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input.addEventListener('mousedown', function (e) {
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// ontsnappingsluik: native select terug
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if (e.altKey) {
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e.preventDefault();
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detach();
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select.focus();
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return;
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}
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if (!open) { e.preventDefault(); input.focus(); openList(''); input.select(); }
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});
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input.addEventListener('focus', function () { if (!open) openList(''); });
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input.addEventListener('input', function () { if (open) render(input.value); else openList(input.value); });
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input.addEventListener('blur', function () {
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setTimeout(function () { if (open) closeList(true); }, 120);
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});
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input.addEventListener('keydown', function (e) {
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var n = list.querySelectorAll('li[data-i]').length;
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switch (e.key) {
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case 'ArrowDown':
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e.preventDefault();
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if (!open) { openList(''); break; }
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if (n) setActive((active + 1) % n);
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break;
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case 'ArrowUp':
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e.preventDefault();
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if (!open) { openList(''); break; }
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if (n) setActive((active - 1 + n) % n);
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break;
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case 'Home': if (open && n) { e.preventDefault(); setActive(0); } break;
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case 'End': if (open && n) { e.preventDefault(); setActive(n - 1); } break;
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case 'PageDown': if (open && n) { e.preventDefault(); setActive(Math.min(n - 1, active + 10)); } break;
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case 'PageUp': if (open && n) { e.preventDefault(); setActive(Math.max(0, active - 10)); } break;
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case 'Enter':
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if (open) { e.preventDefault(); if (active >= 0) choose(active); else closeList(true); }
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break;
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case 'Tab':
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if (open && active >= 0) choose(active); else if (open) closeList(true);
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break;
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case 'Escape':
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if (open) { e.preventDefault(); e.stopPropagation(); closeList(true); }
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break;
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}
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});
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list.addEventListener('mousedown', function (e) { e.preventDefault(); });
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list.addEventListener('click', function (e) {
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var li = e.target;
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while (li && li.tagName !== 'LI') li = li.parentNode;
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if (li && li.hasAttribute('data-i')) choose(parseInt(li.getAttribute('data-i'), 10));
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});
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function onSelectChange() { if (!open) input.value = currentLabel(); }
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select.addEventListener('change', onSelectChange);
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// De app vervangt de optielijst (bv. "Inclusief niet-raamcontractartikelen").
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var resync = debounce(function () {
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var q = open ? input.value : null;
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syncFromSelect();
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if (open) render(q);
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}, 50);
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var obs = new MutationObserver(resync);
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obs.observe(select, { childList: true, subtree: true });
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wrap.__selectSearchDetach = detach;
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wrap.__selectSearchSelect = select;
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syncFromSelect();
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}
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/* ---------------------------------------------------------------- scan */
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function eligible(s) {
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return !s.multiple && s.size <= 1 && !s.disabled
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&& !s.dataset.ssEnhanced && !s.hasAttribute('data-nosearch')
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&& s.options.length >= MIN_OPTIONS;
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}
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|
||||
function scanDoc(doc) {
|
||||
var selects = doc.querySelectorAll('select');
|
||||
for (var i = 0; i < selects.length; i++) {
|
||||
if (eligible(selects[i])) {
|
||||
try { enhance(selects[i]); } catch (e) { /* laat de pagina met rust */ }
|
||||
}
|
||||
}
|
||||
// Wrappers waarvan de app het originele select heeft weggegooid opruimen.
|
||||
var wraps = doc.querySelectorAll('.select-search-wrap');
|
||||
for (var w = 0; w < wraps.length; w++) {
|
||||
var sel = wraps[w].__selectSearchSelect;
|
||||
if (sel && !doc.contains(sel) && wraps[w].parentNode) {
|
||||
wraps[w].parentNode.removeChild(wraps[w]);
|
||||
}
|
||||
}
|
||||
var frames = doc.querySelectorAll('iframe,frame');
|
||||
for (var f = 0; f < frames.length; f++) {
|
||||
try {
|
||||
var fd = frames[f].contentDocument;
|
||||
if (fd && fd.body) { attach(fd); }
|
||||
} catch (e) { /* cross-origin */ }
|
||||
}
|
||||
}
|
||||
|
||||
var attached = [];
|
||||
function attach(doc) {
|
||||
if (attached.indexOf(doc) === -1) {
|
||||
attached.push(doc);
|
||||
new MutationObserver(debounce(function () { scanDoc(doc); }, 120))
|
||||
.observe(doc.documentElement, { childList: true, subtree: true });
|
||||
}
|
||||
scanDoc(doc);
|
||||
}
|
||||
|
||||
function scan() { for (var i = 0; i < attached.length; i++) scanDoc(attached[i]); attach(document); }
|
||||
window.__selectSearchScan = scan;
|
||||
|
||||
if (document.readyState === 'loading') {
|
||||
document.addEventListener('DOMContentLoaded', function () { attach(document); });
|
||||
} else {
|
||||
attach(document);
|
||||
}
|
||||
})();
|
||||
Reference in New Issue
Block a user