313 lines
11 KiB
JavaScript
313 lines
11 KiB
JavaScript
/**
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* Reusable detail drawer — slides in from the right, loads a fragment URL,
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* supports deep-link via URL hash, and can step through rows on the current
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* grid page.
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*/
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import { getHtml, SessionExpiredError } from '../core/app-http.js';
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import { initFragmentContent } from '../core/app-fragment-init.js';
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import { createFocusTrap, createScrollLock } from '../core/app-focus-trap.js';
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const STATE_KEY = Symbol('detail-drawer-state');
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function resolveLabels(labels = {}) {
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return {
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close: labels.close || 'Close',
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previous: labels.previous || 'Previous',
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next: labels.next || 'Next',
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openFull: labels.openFull || 'Open full page',
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loading: labels.loading || 'Loading',
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error: labels.error || 'Failed to load',
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};
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}
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function ensureDrawerElement(labels) {
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let root = document.querySelector('[data-detail-drawer]');
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if (root instanceof HTMLElement) {
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return root;
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}
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root = document.createElement('div');
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root.className = 'app-detail-drawer';
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root.setAttribute('data-detail-drawer', '');
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root.setAttribute('role', 'dialog');
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root.setAttribute('aria-modal', 'true');
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root.setAttribute('aria-hidden', 'true');
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root.hidden = true;
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root.innerHTML = `
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<div class="app-detail-drawer-backdrop" data-detail-drawer-backdrop></div>
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<aside class="app-detail-drawer-panel" data-detail-drawer-panel tabindex="-1">
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<header class="app-detail-drawer-header">
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<div class="app-detail-drawer-stepper">
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<button type="button" class="transparent icon-button" data-detail-drawer-prev
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aria-label="${labels.previous}" data-tooltip="${labels.previous}" data-tooltip-pos="bottom">
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<i class="bi bi-chevron-left"></i>
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</button>
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<button type="button" class="transparent icon-button" data-detail-drawer-next
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aria-label="${labels.next}" data-tooltip="${labels.next}" data-tooltip-pos="bottom">
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<i class="bi bi-chevron-right"></i>
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</button>
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</div>
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<div class="app-detail-drawer-actions">
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<a role="button" class="secondary outline small app-detail-drawer-full" data-detail-drawer-full
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aria-label="${labels.openFull}">
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<i class="bi bi-box-arrow-up-right" aria-hidden="true"></i>
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<span>${labels.openFull}</span>
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</a>
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<button type="button" class="transparent icon-button" data-detail-drawer-close
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aria-label="${labels.close}" data-tooltip="${labels.close}" data-tooltip-pos="bottom">
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<i class="bi bi-x-lg"></i>
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</button>
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</div>
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</header>
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<div class="app-detail-drawer-body" data-detail-drawer-body>
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<div class="app-detail-drawer-loading" data-detail-drawer-loading hidden>${labels.loading}</div>
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<div class="app-detail-drawer-error" data-detail-drawer-error hidden>${labels.error}</div>
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<div class="app-detail-drawer-content" data-detail-drawer-content></div>
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</div>
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</aside>
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`;
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document.body.appendChild(root);
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return root;
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}
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/** Default row-uuid discovery: scrapes the visible Grid.js rows on the page. */
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function makeGridRowProvider(gridConfig, rowUuidAttr) {
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if (!gridConfig) { return null; }
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return () => {
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const wrapper = gridConfig?.wrapper || document;
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const rows = wrapper.querySelectorAll(`.gridjs-tr[data-${rowUuidAttr}]`);
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const uuids = [];
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rows.forEach((row) => {
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const uuid = row.getAttribute(`data-${rowUuidAttr}`);
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if (uuid) { uuids.push(uuid); }
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});
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return uuids;
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};
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}
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export function initDetailDrawer(options = {}) {
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const {
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gridConfig = null,
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triggerSelector = '[data-drawer-trigger]',
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rowSelector = '.gridjs-tr',
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rowUuidAttr = 'uuid',
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rowProvider = null,
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fetchUrl,
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fullUrl,
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hashPrefix = 'detail',
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onContentLoaded = null,
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labels: labelOverrides = {},
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} = options;
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if (typeof fetchUrl !== 'function') {
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console.warn('[detail-drawer] fetchUrl required');
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return null;
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}
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const effectiveRowProvider = typeof rowProvider === 'function'
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? rowProvider
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: makeGridRowProvider(gridConfig, rowUuidAttr);
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const stepperEnabled = typeof effectiveRowProvider === 'function';
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const labels = resolveLabels(labelOverrides);
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const root = ensureDrawerElement(labels);
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if (root[STATE_KEY]) { return root[STATE_KEY]; }
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const panel = root.querySelector('[data-detail-drawer-panel]');
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const backdrop = root.querySelector('[data-detail-drawer-backdrop]');
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const closeButton = root.querySelector('[data-detail-drawer-close]');
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const prevButton = root.querySelector('[data-detail-drawer-prev]');
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const nextButton = root.querySelector('[data-detail-drawer-next]');
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const stepperContainer = root.querySelector('.app-detail-drawer-stepper');
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const fullLink = root.querySelector('[data-detail-drawer-full]');
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const contentEl = root.querySelector('[data-detail-drawer-content]');
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const loadingEl = root.querySelector('[data-detail-drawer-loading]');
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const errorEl = root.querySelector('[data-detail-drawer-error]');
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if (stepperContainer instanceof HTMLElement) {
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stepperContainer.hidden = !stepperEnabled;
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}
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const hashPattern = new RegExp(`^#${hashPrefix}/([^/?#]+)`);
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const focusTrap = createFocusTrap(panel);
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const scrollLock = createScrollLock();
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let lastTrigger = null;
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const api = {
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currentUuid: null,
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isOpen: false,
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open(uuid, opts = {}) {
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const pushHash = opts.pushHash !== false;
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if (!uuid) { return; }
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const wasOpen = api.isOpen;
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api.currentUuid = String(uuid);
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root.hidden = false;
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root.setAttribute('aria-hidden', 'false');
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root.classList.add('is-open');
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document.documentElement.classList.add('app-detail-drawer-open');
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api.isOpen = true;
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if (!wasOpen) {
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lastTrigger = document.activeElement instanceof HTMLElement ? document.activeElement : null;
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scrollLock.lock();
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focusTrap.activate(lastTrigger);
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}
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if (typeof fullUrl === 'function') {
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fullLink.href = fullUrl(uuid);
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}
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if (pushHash) {
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const targetHash = `#${hashPrefix}/${uuid}`;
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if (window.location.hash !== targetHash) {
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history.replaceState(null, '', window.location.pathname + window.location.search + targetHash);
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}
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}
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updateStepper();
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loadContent(uuid);
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},
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close(opts = {}) {
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const clearHash = opts.clearHash !== false;
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if (!api.isOpen) { return; }
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api.isOpen = false;
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api.currentUuid = null;
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root.classList.remove('is-open');
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root.setAttribute('aria-hidden', 'true');
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root.hidden = true;
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document.documentElement.classList.remove('app-detail-drawer-open');
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focusTrap.deactivate();
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scrollLock.unlock();
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lastTrigger = null;
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contentEl.innerHTML = '';
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if (clearHash && hashPattern.test(window.location.hash)) {
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history.replaceState(null, '', window.location.pathname + window.location.search);
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}
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},
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openNext() { step(+1); },
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openPrev() { step(-1); },
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};
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function getRowUuids() {
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if (!stepperEnabled) { return []; }
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try {
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const result = effectiveRowProvider();
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return Array.isArray(result) ? result.filter(Boolean).map(String) : [];
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} catch (err) {
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console.warn('[detail-drawer] rowProvider failed', err);
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return [];
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}
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}
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function step(direction) {
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if (!api.currentUuid || !stepperEnabled) { return; }
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const uuids = getRowUuids();
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const idx = uuids.indexOf(api.currentUuid);
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if (idx < 0) { return; }
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const nextIdx = idx + direction;
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if (nextIdx < 0 || nextIdx >= uuids.length) { return; }
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api.open(uuids[nextIdx]);
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}
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function updateStepper() {
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if (!stepperEnabled) {
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prevButton.disabled = true;
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nextButton.disabled = true;
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return;
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}
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const uuids = getRowUuids();
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const idx = uuids.indexOf(api.currentUuid);
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prevButton.disabled = idx <= 0;
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nextButton.disabled = idx < 0 || idx >= uuids.length - 1;
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}
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async function loadContent(uuid) {
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contentEl.innerHTML = '';
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errorEl.hidden = true;
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loadingEl.hidden = false;
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const url = fetchUrl(uuid);
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try {
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const html = await getHtml(url);
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if (!api.isOpen || api.currentUuid !== String(uuid)) { return; }
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contentEl.innerHTML = html;
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contentEl.querySelectorAll('script').forEach((script) => {
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const replacement = document.createElement('script');
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[...script.attributes].forEach((attr) => replacement.setAttribute(attr.name, attr.value));
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replacement.textContent = script.textContent;
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script.parentNode.replaceChild(replacement, script);
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});
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loadingEl.hidden = true;
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initFragmentContent(contentEl);
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if (typeof onContentLoaded === 'function') {
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try {
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onContentLoaded(contentEl, uuid);
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} catch (hookErr) {
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console.warn('[detail-drawer] onContentLoaded failed', hookErr);
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}
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}
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} catch (err) {
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if (err instanceof SessionExpiredError) {
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api.close({ clearHash: true });
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window.location.reload();
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return;
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}
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loadingEl.hidden = true;
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errorEl.hidden = false;
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console.warn('[detail-drawer] load failed', err);
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}
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}
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document.addEventListener('click', (event) => {
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const trigger = event.target.closest(triggerSelector);
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if (!trigger) { return; }
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if (event.metaKey || event.ctrlKey || event.shiftKey || event.button === 1) {
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return;
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}
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const row = trigger.closest(rowSelector);
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const uuid = row?.getAttribute(`data-${rowUuidAttr}`) || trigger.getAttribute(`data-${rowUuidAttr}`);
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if (!uuid) { return; }
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event.preventDefault();
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api.open(uuid);
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});
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closeButton.addEventListener('click', () => api.close());
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backdrop.addEventListener('click', () => api.close());
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prevButton.addEventListener('click', () => api.openPrev());
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nextButton.addEventListener('click', () => api.openNext());
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document.addEventListener('keydown', (event) => {
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if (!api.isOpen) { return; }
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if (event.key === 'Escape') {
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event.preventDefault();
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api.close();
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return;
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}
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if (event.target instanceof HTMLElement) {
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const tag = event.target.tagName;
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if (tag === 'INPUT' || tag === 'TEXTAREA' || tag === 'SELECT' || event.target.isContentEditable) {
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return;
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}
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}
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if (event.key === 'j' || event.key === 'ArrowDown') {
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event.preventDefault();
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api.openNext();
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} else if (event.key === 'k' || event.key === 'ArrowUp') {
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event.preventDefault();
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api.openPrev();
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}
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});
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window.addEventListener('hashchange', () => {
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const match = hashPattern.exec(window.location.hash);
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if (match) {
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api.open(match[1], { pushHash: false });
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} else if (api.isOpen) {
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api.close({ clearHash: false });
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}
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});
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const initialMatch = hashPattern.exec(window.location.hash);
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if (initialMatch) {
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requestAnimationFrame(() => api.open(initialMatch[1], { pushHash: false }));
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}
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root[STATE_KEY] = api;
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return api;
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}
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