Convert search_select.js to TypeScript (issue #17)
- Add ts/search_select.ts: typed port of the SearchSelect/FilterSelect widget. Exports SearchSelectOption / SearchSelectChangeDetail as the single source of truth for the "search-select:change" event contract - add_purchase.ts now imports those types via `import type` (no runtime coupling), instead of redefining them locally - Declare window.readSearchSelect in ts/globals.d.ts - Point the SearchSelect component Media and every view/e2e/test reference at the compiled dist/search_select.js - Update doc comments in common/components/search_select.py to name the TS source Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
@@ -1,664 +0,0 @@
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/**
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* SearchSelect widget — a search box paired with a dropdown of options.
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* Multi-select renders chosen items as removable pills (inline with the search
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* box), each backed by a hidden <input>. Single-select renders no pill: the
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* committed label lives inside the search box (which doubles as a combobox —
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* focus clears it to search, picking an option fills it), with a lone hidden
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* <input> carrying the value. Both keep hidden inputs so Django validation works.
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*
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* Filter mode (data-search-select-mode="filter", rendered by FilterSelect): value rows
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* carry +/− buttons that add include (✓) / exclude (✗) pills, plus pinned
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* modifier pseudo-options ((Any)/(None)) that are mutually exclusive with value
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* pills. Filter widgets have no hidden inputs; readSearchSelect serialises their
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* state into data-included / data-excluded / data-modifier for the filter bar.
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*
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* Widgets are initialized via onSwap() (utils.js), which covers the initial
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* page load and every htmx-swapped fragment, once per widget.
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*
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* Dynamically-added rows and pills are cloned from hidden <template> elements
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* the server renders with the same Python components (Pill / SearchSelect /
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* FilterSelect). The JS only fills in the label slot ([data-search-select-label]), value,
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* and data-* attributes — so all markup and Tailwind class strings live in one
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* place (the Python components), never duplicated here.
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*/
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import { onSwap } from "./utils.js";
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(() => {
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"use strict";
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const DEBOUNCE_MS = 100;
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// Must match Python common/components/filters.py:_PRESENCE_MODIFIERS.
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// These modifiers are mutually exclusive with value pills — selecting
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// one clears all value pills. Non-presence modifiers (INCLUDES_ALL,
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// INCLUDES_ONLY) coexist with value pills.
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const PRESENCE_MODIFIERS = ["NOT_NULL", "IS_NULL"];
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const initWidget = (container) => {
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const search = container.querySelector("[data-search-select-search]");
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const options = container.querySelector("[data-search-select-options]");
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const pills = container.querySelector("[data-search-select-pills]");
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if (!search || !options || !pills) return;
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const name = container.getAttribute("data-name");
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const searchUrl = container.getAttribute("data-search-url");
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const isFilter = container.getAttribute("data-search-select-mode") === "filter";
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const freeText = container.getAttribute("data-search-select-free-text") === "true";
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const multi = container.getAttribute("data-multi") === "true";
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const alwaysVisible = container.getAttribute("data-always-visible") === "true";
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const prefetch = parseInt(container.getAttribute("data-prefetch"), 10) || 0;
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const syncUrl = container.getAttribute("data-sync-url") === "true";
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const noResults = options.querySelector("[data-search-select-no-results]");
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let debounceTimer = null;
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let pendingRequest = null; // in-flight AbortController, so newer queries win
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let hasPrefetched = false;
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const hasVisibleContent = () => {
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const optionRows = options.querySelectorAll("[data-search-select-option]");
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for (let i = 0; i < optionRows.length; i++) {
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if (optionRows[i].style.display !== "none") return true;
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}
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if (noResults && !noResults.classList.contains("hidden")) return true;
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if (options.querySelector("[data-search-select-modifier-option]")) return true;
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return false;
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};
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const showPanel = () => {
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if (alwaysVisible || hasVisibleContent()) {
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options.classList.remove("hidden");
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}
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};
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const hidePanel = () => {
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if (!alwaysVisible) options.classList.add("hidden");
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};
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const setNoResults = (visible) => {
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if (!noResults) return;
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noResults.classList.toggle("hidden", !visible);
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if (visible) showPanel();
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};
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// ── Highlight tracking (filter mode) ──
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let highlightedRow = null;
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const highlightOption = (row) => {
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clearHighlight();
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if (!row) return;
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row.setAttribute("data-search-select-highlighted", "");
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highlightedRow = row;
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row.scrollIntoView({ block: "nearest" });
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};
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const clearHighlight = () => {
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if (highlightedRow) {
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highlightedRow.removeAttribute("data-search-select-highlighted");
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highlightedRow = null;
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}
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};
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const getVisibleOptions = () => {
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const all = options.querySelectorAll("[data-search-select-option]");
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return Array.from(all).filter(row => row.style.display !== "none");
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};
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const autoHighlight = (query) => {
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const visible = getVisibleOptions();
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if (visible.length === 0) {
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clearHighlight();
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return;
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}
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const lower = query.toLowerCase();
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// 1. Starts-with match
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for (let i = 0; i < visible.length; i++) {
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const label = (visible[i].getAttribute("data-label") || "").toLowerCase();
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if (lower && label.startsWith(lower)) {
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highlightOption(visible[i]);
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return;
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}
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}
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// 2. Substring match (fuzzy-lite)
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for (let j = 0; j < visible.length; j++) {
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const subLabel = (visible[j].getAttribute("data-label") || "").toLowerCase();
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if (lower && subLabel.includes(lower)) {
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highlightOption(visible[j]);
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return;
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}
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}
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// 3. Fallback: first visible option
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highlightOption(visible[0]);
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};
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// Get active values in both form and filter modes
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const getSelectedValues = () => {
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const vals = new Set();
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pills.querySelectorAll('input[type="hidden"]').forEach(input => {
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vals.add(input.value);
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});
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pills.querySelectorAll("[data-pill]").forEach(pill => {
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const val = pill.getAttribute("data-value");
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if (val) vals.add(val);
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});
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return vals;
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};
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// ── Render server-fetched rows into the panel ──
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const renderRows = (items) => {
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const selectedVals = getSelectedValues();
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const preservedOptions = [];
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// Extract existing option data for currently selected values before removing
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options.querySelectorAll("[data-search-select-option]").forEach(row => {
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const val = row.getAttribute("data-value");
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if (selectedVals.has(val)) {
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preservedOptions.push(optionFromRow(row));
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}
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row.remove();
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});
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const renderedValues = new Set();
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// Render preserved options first (to keep them at the top)
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preservedOptions.forEach(opt => {
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options.insertBefore(buildRow(opt), noResults || null);
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renderedValues.add(String(opt.value));
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});
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// Render newly fetched items (excluding already rendered preserved ones)
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// Fix DOM-limit vs fetch mismatch: Do not slice the items, render all returned items.
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items.forEach(item => {
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if (!renderedValues.has(String(item.value))) {
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options.insertBefore(buildRow(item), noResults || null);
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renderedValues.add(String(item.value));
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}
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});
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showPanel();
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};
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// ── Clone a server-rendered <template> prototype by name. The server emits
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// the mode-appropriate prototypes, so the JS never names a class. ──
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const cloneTemplate = (name) => {
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const template = container.querySelector(`template[data-search-select-template="${name}"]`);
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return template
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? template.content.firstElementChild.cloneNode(true)
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: null;
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};
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const setLabel = (node, label) => {
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const slot = node.querySelector("[data-search-select-label]");
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if (slot) slot.textContent = label;
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};
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const applyData = (node, data = {}) => {
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Object.keys(data).forEach(key => {
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node.setAttribute(`data-${key}`, data[key]);
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});
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};
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// Build an option row by cloning the "row" template (the same prototype the
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// server renders, so fetched and pre-rendered rows are identical).
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const buildRow = (option) => {
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const row = cloneTemplate("row");
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if (!row) return document.createComment("ss-row");
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row.setAttribute("data-value", option.value);
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row.setAttribute("data-label", option.label);
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applyData(row, option.data);
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setLabel(row, option.label);
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row._searchSelectOption = option;
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return row;
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};
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// ── Client-side filter of the currently loaded rows. Returns the number of
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// visible rows so the caller decides whether to show the no-results node. ──
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const filterRows = (query) => {
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const lower = query.toLowerCase();
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let visibleCount = 0;
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options.querySelectorAll("[data-search-select-option]").forEach(item => {
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const label = (item.getAttribute("data-label") || "").toLowerCase();
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const match = label.includes(lower);
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item.style.display = match ? "" : "none";
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if (match) visibleCount += 1;
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});
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return visibleCount;
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};
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// ── Fetch matching rows from the server. The previous in-flight request is
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// aborted so a slower earlier response can never overwrite a newer one. ──
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const fetchFromServer = (query) => {
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if (pendingRequest) pendingRequest.abort();
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pendingRequest = new AbortController();
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let url = `${searchUrl}?q=${encodeURIComponent(query)}`;
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if (prefetch && !query) url += `&limit=${prefetch}`;
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fetch(url, { credentials: "same-origin", signal: pendingRequest.signal })
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.then(response => response.json())
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.then(items => {
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pendingRequest = null;
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renderRows(items);
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// Re-apply the live query: the box may hold more text than was sent.
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setNoResults(filterRows(search.value.trim()) === 0);
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autoHighlight(search.value.trim());
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})
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.catch(error => {
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if (error?.name === "AbortError") return; // superseded
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pendingRequest = null;
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setNoResults(true);
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});
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};
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// In free-text mode the typed text is the value itself: there is no
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// backing list, so we rebuild a single ephemeral option row reflecting the
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// current query so the +/− buttons (or Enter) can commit it as a pill.
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const rebuildFreeTextRow = (query) => {
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options.querySelectorAll("[data-search-select-option]").forEach(row => row.remove());
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if (!query) {
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setNoResults(false);
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clearHighlight();
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return;
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}
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const row = buildRow({ value: query, label: query, data: {} });
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options.insertBefore(row, noResults || null);
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setNoResults(false);
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highlightOption(row);
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};
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// Called on every keystroke. With a search_url, filter the loaded window
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// instantly (zero latency) and debounce a server request for the rest;
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// no-results stays hidden until the response decides it, to avoid a flash
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// over an incomplete window. Without a search_url the loaded set is complete,
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// so the client-side filter is authoritative.
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const runSearch = () => {
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const query = search.value.trim();
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if (freeText) {
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rebuildFreeTextRow(query);
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showPanel();
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return;
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}
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if (searchUrl) {
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filterRows(query);
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setNoResults(false);
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clearTimeout(debounceTimer);
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debounceTimer = setTimeout(() => {
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fetchFromServer(query);
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}, DEBOUNCE_MS);
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} else {
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setNoResults(filterRows(query) === 0);
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}
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autoHighlight(query);
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showPanel();
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};
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// ── Single-select combobox: the search box shows the committed label;
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// focusing clears it to search, blurring restores it (or deselects). ──
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if (!multi) container._searchSelectLabel = search.value;
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search.addEventListener("focus", () => {
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if (!multi) {
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// Hide the committed label so the box becomes a fresh search field.
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search.value = "";
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container._searchSelectDirty = false;
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}
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if (freeText) {
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rebuildFreeTextRow(search.value.trim());
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} else if (searchUrl) {
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if (prefetch && !hasPrefetched) {
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// Seed the window immediately on first open (not debounced).
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hasPrefetched = true;
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fetchFromServer("");
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} else {
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// Show whatever is already loaded; the server decides no-results.
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filterRows(search.value.trim());
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setNoResults(false);
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autoHighlight(search.value.trim());
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}
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} else {
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setNoResults(filterRows(search.value.trim()) === 0);
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autoHighlight(search.value.trim());
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}
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showPanel();
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});
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search.addEventListener("input", () => {
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clearHighlight();
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if (!multi) {
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if (!container._searchSelectDirty) {
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const label = container._searchSelectLabel || "";
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if (search.value.startsWith(label)) {
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search.value = search.value.slice(label.length);
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}
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container._searchSelectDirty = true;
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}
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}
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runSearch();
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});
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if (!multi) {
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search.addEventListener("blur", () => {
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// Defer so an option click (which fires before blur settles) wins.
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setTimeout(() => {
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if (container._searchSelectDirty && search.value.trim() === "") {
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// User intentionally cleared the box → deselect.
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pills.innerHTML = "";
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container._searchSelectLabel = "";
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emitChange(null);
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} else {
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// Focused-and-left, or typed a partial query without picking →
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// restore the committed label (no-op right after a selection).
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search.value = container._searchSelectLabel || "";
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}
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}, 120);
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});
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}
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// ── Keyboard navigation (both form and filter modes) ──
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search.addEventListener("keydown", (event) => {
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const { key } = event;
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if (!multi && key === "Backspace" && !container._searchSelectDirty) {
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event.preventDefault();
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search.value = "";
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search.dispatchEvent(new Event("input", { bubbles: true }));
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return;
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}
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if (!["ArrowDown", "ArrowUp", "Enter", "Escape"].includes(key)) return;
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const visible = getVisibleOptions();
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if (visible.length === 0) {
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if (key === "Escape") hidePanel();
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return;
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}
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if (key === "ArrowDown") {
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event.preventDefault();
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showPanel();
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const downIdx = highlightedRow ? visible.indexOf(highlightedRow) : -1;
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highlightOption(visible[(downIdx + 1) % visible.length]);
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} else if (key === "ArrowUp") {
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event.preventDefault();
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showPanel();
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const upIdx = highlightedRow ? visible.indexOf(highlightedRow) : -1;
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highlightOption(visible[(upIdx - 1 + visible.length) % visible.length]);
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} else if (key === "Enter") {
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if (highlightedRow) {
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event.preventDefault();
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const option = optionFromRow(highlightedRow);
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if (isFilter) {
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addFilterPill(option, "include");
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search.value = "";
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} else {
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selectOption(option);
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}
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clearHighlight();
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hidePanel();
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}
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} else if (key === "Escape") {
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clearHighlight();
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hidePanel();
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}
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});
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// Clicking an option must not blur the input before the click selects.
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options.addEventListener("mousedown", (event) => {
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event.preventDefault();
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});
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// ── Option click → select (form mode) or include/exclude (filter mode) ──
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options.addEventListener("click", (event) => {
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if (isFilter) {
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handleFilterOptionClick(event);
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return;
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}
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const row = event.target.closest("[data-search-select-option]");
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if (!row) return;
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selectOption(optionFromRow(row));
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});
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const handleFilterOptionClick = (event) => {
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// Pinned modifier pseudo-option → set the (mutually exclusive) modifier.
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const modifierRow = event.target.closest("[data-search-select-modifier-option]");
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if (modifierRow) {
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setModifier(
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modifierRow.getAttribute("data-search-select-modifier-option"),
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modifierRow.getAttribute("data-label")
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);
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return;
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}
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// Include / exclude button on a value row.
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const button = event.target.closest("[data-search-select-action]");
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if (button) {
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const row = button.closest("[data-search-select-option]");
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if (!row) return;
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addFilterPill(optionFromRow(row), button.getAttribute("data-search-select-action"));
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return;
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}
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// Click on the option row itself → include.
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const optionRow = event.target.closest("[data-search-select-option]");
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if (optionRow) {
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addFilterPill(optionFromRow(optionRow), "include");
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}
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};
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// Add (or re-type) an include/exclude pill for a value. Selecting any value
|
||||
// clears a presence modifier — NOT_NULL / IS_NULL are mutually exclusive
|
||||
// with value pills. Non-presence modifiers (INCLUDES_ALL / INCLUDES_ONLY)
|
||||
// persist alongside value pills.
|
||||
const addFilterPill = (option, kind) => {
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const modPill = pills.querySelector("[data-search-select-modifier]");
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if (modPill) {
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const modVal = modPill.getAttribute("data-search-select-modifier");
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if (PRESENCE_MODIFIERS.includes(modVal)) {
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clearModifier();
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}
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}
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const existing = pills.querySelector(
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`[data-pill][data-value="${cssEscape(option.value)}"]`
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);
|
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if (existing) existing.remove();
|
||||
pills.appendChild(buildFilterValuePill(option, kind));
|
||||
search.value = "";
|
||||
emitChange(null);
|
||||
};
|
||||
|
||||
const buildFilterValuePill = (option, kind) => {
|
||||
const pill = cloneTemplate(kind === "include" ? "pill-include" : "pill-exclude");
|
||||
pill.setAttribute("data-value", option.value);
|
||||
pill.setAttribute("data-label", option.label);
|
||||
applyData(pill, option.data);
|
||||
setLabel(pill, option.label);
|
||||
return pill;
|
||||
};
|
||||
|
||||
// Set the modifier pill. Presence modifiers (NOT_NULL / IS_NULL) clear all
|
||||
// value pills — they are mutually exclusive. Non-presence modifiers
|
||||
// (INCLUDES_ALL / INCLUDES_ONLY) are prepended before existing value pills.
|
||||
const setModifier = (modifierValue, label) => {
|
||||
// Remove any existing modifier pill to avoid duplicates.
|
||||
clearModifierPill();
|
||||
if (PRESENCE_MODIFIERS.includes(modifierValue)) {
|
||||
pills.innerHTML = "";
|
||||
}
|
||||
const pill = cloneTemplate("pill-modifier");
|
||||
pill.setAttribute("data-search-select-modifier", modifierValue);
|
||||
setLabel(pill, label);
|
||||
pills.insertBefore(pill, pills.firstChild);
|
||||
container.setAttribute("data-modifier", modifierValue);
|
||||
hidePanel();
|
||||
emitChange(null);
|
||||
};
|
||||
|
||||
// Remove the modifier pill and its container attribute. Safe to call when
|
||||
// there is no modifier pill (no-op). Does not touch value pills.
|
||||
const clearModifierPill = () => {
|
||||
const modifierPill = pills.querySelector("[data-search-select-modifier]");
|
||||
if (modifierPill) modifierPill.remove();
|
||||
container.removeAttribute("data-modifier");
|
||||
};
|
||||
|
||||
const clearModifier = () => {
|
||||
clearModifierPill();
|
||||
};
|
||||
|
||||
const optionFromRow = (row) => {
|
||||
if (row._searchSelectOption) return row._searchSelectOption;
|
||||
const data = {};
|
||||
Object.keys(row.dataset).forEach(key => {
|
||||
if (key !== "value" && key !== "label" && key !== "ssOption") {
|
||||
data[key] = row.dataset[key];
|
||||
}
|
||||
});
|
||||
return {
|
||||
value: row.getAttribute("data-value"),
|
||||
label: row.getAttribute("data-label"),
|
||||
data,
|
||||
};
|
||||
};
|
||||
|
||||
const selectOption = (option) => {
|
||||
if (multi) {
|
||||
if (!pills.querySelector(`input[value="${cssEscape(option.value)}"]`)) {
|
||||
addPill(option);
|
||||
}
|
||||
search.value = "";
|
||||
} else {
|
||||
// Single-select: no pill — show the label in the search box and keep a
|
||||
// lone hidden input under [data-search-select-pills] for submission.
|
||||
pills.innerHTML = "";
|
||||
pills.appendChild(buildHidden(option.value));
|
||||
search.value = option.label;
|
||||
container._searchSelectLabel = option.label;
|
||||
container._searchSelectDirty = false;
|
||||
hidePanel();
|
||||
}
|
||||
emitChange(option);
|
||||
};
|
||||
|
||||
const addPill = (option) => {
|
||||
const pill = buildPill(option);
|
||||
if (pill) pills.appendChild(pill);
|
||||
pills.appendChild(buildHidden(option.value));
|
||||
};
|
||||
|
||||
const buildPill = (option) => {
|
||||
const pill = cloneTemplate("pill");
|
||||
if (!pill) return null;
|
||||
pill.setAttribute("data-value", option.value);
|
||||
applyData(pill, option.data);
|
||||
setLabel(pill, option.label);
|
||||
return pill;
|
||||
};
|
||||
|
||||
const buildHidden = (value) => {
|
||||
const input = document.createElement("input");
|
||||
input.type = "hidden";
|
||||
input.name = name;
|
||||
input.value = value;
|
||||
return input;
|
||||
};
|
||||
|
||||
// ── Pill × → remove ──
|
||||
pills.addEventListener("click", (event) => {
|
||||
const removeButton = event.target.closest("[data-pill-remove]");
|
||||
if (!removeButton) return;
|
||||
const pill = removeButton.closest("[data-pill]");
|
||||
if (!pill) return;
|
||||
if (isFilter) {
|
||||
// Filter pills have no hidden input.
|
||||
if (pill.hasAttribute("data-search-select-modifier")) {
|
||||
clearModifierPill();
|
||||
} else {
|
||||
pill.remove();
|
||||
}
|
||||
emitChange(null);
|
||||
return;
|
||||
}
|
||||
const value = pill.getAttribute("data-value");
|
||||
pill.remove();
|
||||
const hidden = pills.querySelector(`input[value="${cssEscape(value)}"]`);
|
||||
if (hidden) hidden.remove();
|
||||
emitChange(null);
|
||||
});
|
||||
|
||||
const currentValues = () => {
|
||||
return Array.from(pills.querySelectorAll('input[type="hidden"]')).map(input => input.value);
|
||||
};
|
||||
|
||||
const emitChange = (last) => {
|
||||
const values = currentValues();
|
||||
if (syncUrl) syncToUrl(values);
|
||||
container.dispatchEvent(
|
||||
new CustomEvent("search-select:change", {
|
||||
bubbles: true,
|
||||
detail: { name, values, last },
|
||||
})
|
||||
);
|
||||
};
|
||||
|
||||
const syncToUrl = (values) => {
|
||||
const params = new URLSearchParams(window.location.search);
|
||||
params.delete(name);
|
||||
values.forEach(v => {
|
||||
params.append(name, v);
|
||||
});
|
||||
const qs = params.toString();
|
||||
history.replaceState(null, "", qs ? `?${qs}` : window.location.pathname);
|
||||
};
|
||||
|
||||
// On init, restore from URL params if the server supplied no selected pills.
|
||||
if (syncUrl && !pills.querySelector("[data-pill]")) {
|
||||
const initial = new URLSearchParams(window.location.search).getAll(name);
|
||||
initial.forEach(v => {
|
||||
addPill({ value: v, label: v, data: {} });
|
||||
});
|
||||
}
|
||||
|
||||
// ── Close panel on outside click ──
|
||||
document.addEventListener("click", (event) => {
|
||||
if (!container.contains(event.target)) hidePanel();
|
||||
});
|
||||
};
|
||||
|
||||
/** Minimal escape for use inside an attribute-value selector. */
|
||||
const cssEscape = (value) => String(value).replace(/["\\]/g, "\\$&");
|
||||
|
||||
// Serialise each widget's current state onto data-* attributes for the caller.
|
||||
// Form widgets expose data-values (the submitted hidden-input values); filter
|
||||
// widgets expose data-included / data-excluded / data-modifier for the filter
|
||||
// bar to read.
|
||||
window.readSearchSelect = (form) => {
|
||||
form.querySelectorAll("[data-search-select]").forEach(container => {
|
||||
const pills = container.querySelector("[data-search-select-pills]");
|
||||
if (container.getAttribute("data-search-select-mode") === "filter") {
|
||||
const included = [];
|
||||
const excluded = [];
|
||||
let modifier = "";
|
||||
if (pills) {
|
||||
pills.querySelectorAll("[data-pill]").forEach(pill => {
|
||||
const pillModifier = pill.getAttribute("data-search-select-modifier");
|
||||
if (pillModifier) {
|
||||
modifier = pillModifier; // last modifier pill wins
|
||||
return; // skip value extraction for this pill
|
||||
}
|
||||
const value = pill.getAttribute("data-value");
|
||||
const label = pill.getAttribute("data-label") || "";
|
||||
if (pill.getAttribute("data-search-select-type") === "exclude") {
|
||||
excluded.push({ id: value, label });
|
||||
} else {
|
||||
included.push({ id: value, label });
|
||||
}
|
||||
});
|
||||
}
|
||||
container.setAttribute("data-included", JSON.stringify(included));
|
||||
container.setAttribute("data-excluded", JSON.stringify(excluded));
|
||||
if (modifier) container.setAttribute("data-modifier", modifier);
|
||||
else container.removeAttribute("data-modifier");
|
||||
return;
|
||||
}
|
||||
const values = pills
|
||||
? Array.from(pills.querySelectorAll('input[type="hidden"]')).map(input => input.value)
|
||||
: [];
|
||||
container.setAttribute("data-values", JSON.stringify(values));
|
||||
});
|
||||
};
|
||||
|
||||
onSwap("[data-search-select]", initWidget);
|
||||
})();
|
||||
Reference in New Issue
Block a user