feat(header): mobile-optimized search bar with OlFacetSelect + OlSearchBar LIT components by mekarpeles · Pull Request #12757 · internetarchive/openlibrary

mekarpeles · 2026-05-17T19:44:38Z

Summary

Replaces the legacy jQuery/native-<select> header search bar with two new Lit web components, giving us a popover-based facet selector and cleaner mobile collapse behavior while keeping all existing functionality intact.

OlFacetSelect (ol-facet-select) — a new single-select popover primitive built on OlPopover. Sibling to OlSelectPopover (Lokesh's multi-select component from Add ol-select-popover component #12635/refactor: polish OlPopover and OlSelectPopover behavior #12680). Same contract with OlPopover; intentionally minimal — no filter input, no multi-select. Fires ol-facet-select-change; keyboard-navigable (ArrowUp/Down/Home/End).
OlSearchBar (ol-search-bar) — light-DOM wrapper (no Shadow DOM) that renders the full .search-bar-component block. Existing jQuery autocomplete selectors and global CSS continue to work without change. Handles mobile collapse/expand internally (replaces SearchBar.js's initCollapsibleMode).
SearchBar.js bridge — detects <ol-search-bar> and switches to an event-driven path; legacy <select> path remains for easy rollback.
CSS — ol-facet-select mirrors the legacy .search-facet hide/show behavior: hidden on mobile by default, visible when expanded or ≥ 568px.

Rollback

Revert nav_head.html to the old <div class="search-bar-component"> block — one line — and the legacy path in SearchBar.js activates automatically (it checks for ol-search-bar presence).

Screenshots

Desktop (1280px)

Search bar with new OlFacetSelect trigger ("All ▾"), text input, submit, barcode button:

Mobile — collapsed (375px)

Only the search icon is visible (logo shows); matches legacy behavior:

Mobile — expanded (after tap)

Full bar: facet selector + input + buttons:

Testing

388 JS unit tests — 0 failures (npm run test:js)
8 Playwright E2E tests — all passing (npx playwright test)
- Desktop: baseline visibility, facet popover open/select/close, search submits to /search?q=..., autocomplete renders after 3+ chars
- Mobile: collapsed baseline, tap-to-expand
HTTP 200 from Docker after make lit-components && make js && make css
Pre-commit clean (generate-pot skipped — Docker-only hook)

Notes for Lokesh

OlFacetSelect is designed as a natural complement to OlSelectPopover — same OlPopover base, same event contract, different UX (single-select radio-style vs. multi-select). Happy to move it into the component library proper or adjust the API based on your feedback. The key design decision was NOT to modify OlSelectPopover itself, keeping your component's intent intact.

/cc @hornc @cdrini @internetarchive/openlibrary-maintainers

Copilot

Pull request overview

This PR migrates the header search UI from the legacy server-rendered/native select markup to Lit-based ol-search-bar and ol-facet-select components, with supporting bridge logic, styles, and E2E coverage.

Changes:

Adds OlSearchBar and OlFacetSelect Lit components and exports them through the Lit component bundle.
Updates the header template and SearchBar.js to use the new component path while retaining legacy fallback logic.
Adds Playwright E2E setup/tests and adjusts popover/select behavior for the new search UX.

Reviewed changes

Copilot reviewed 12 out of 13 changed files in this pull request and generated 10 comments.

Show a summary per file

File	Description
`openlibrary/templates/lib/nav_head.html`	Replaces legacy header search markup with `<ol-search-bar>`.
`openlibrary/plugins/openlibrary/js/SearchBar.js`	Adds Lit-component detection and event-driven facet handling.
`openlibrary/components/lit/OlSearchBar.js`	Adds the new light-DOM header search component.
`openlibrary/components/lit/OlFacetSelect.js`	Adds the new single-select popover facet selector.
`openlibrary/components/lit/OlPopover.js`	Routes trigger-close behavior through the close request event path.
`openlibrary/components/lit/OlSelectPopover.js`	Adjusts trigger chevron order and mobile autofocus behavior.
`openlibrary/components/lit/index.js`	Exports the new Lit components.
`static/css/components/header-bar.css`	Adds header CSS integration for the new components.
`tests/e2e/header-search.spec.mjs`	Adds Playwright coverage for desktop/mobile header search behavior.
`playwright.config.mjs`	Adds Playwright configuration.
`package.json`	Adds Playwright dependency and `test:e2e` script.
`package-lock.json`	Locks Playwright dependencies.

Comments suppressed due to low confidence (4)

tests/e2e/header-search.spec.mjs:62

ol-popover is the host containing the trigger, so it can be visible even when the panel did not open. This assertion does not verify the click opened the popover; assert the open state or visible option panel/content instead.

        // Popover panel with options should be visible
        const panel = page.locator('ol-popover').first();
        await expect(panel).toBeVisible();

tests/e2e/header-search.spec.mjs:108

Catching the timeout and continuing means this test passes even when autocomplete never renders any results. Add an expectation for visible result items so the test actually covers the autocomplete behavior described by its name.

        // Wait for autocomplete results to appear (debounced at 500ms)
        await page.waitForSelector('header#header-bar .search-results li', { timeout: 5000 }).catch(() => null);
        await page.screenshot({ path: screenshotPath('05-autocomplete-results'), clip: { x: 0, y: 0, width: 600, height: 400 } });

openlibrary/components/lit/OlSearchBar.js:120

These placeholder/ARIA strings are hard-coded in English, whereas the previous header template translated the same user-facing labels. This will expose English text in localized UI and screen-reader labels; make them configurable and pass translated values from nav_head.html.

                            placeholder="Search"
                            aria-label="Search"

tests/e2e/header-search.spec.mjs:130

This test only clicks and waits, so it will pass even if the search bar never expands. Assert the expanded class and/or that the input/facet controls become visible after the click.

        // Click the search area to expand it
        const searchComponent = page.locator('header#header-bar .search-component').first();
        await searchComponent.click();

        await page.waitForTimeout(300);

Copilot

Pull request overview

Copilot reviewed 19 out of 21 changed files in this pull request and generated 9 comments.

…chBar LIT components Swaps the legacy jQuery-driven header search bar for two new Lit web components while keeping full backward compatibility and an easy one-line rollback path. New components - OlFacetSelect (ol-facet-select): single-select popover built on OlPopover; fires ol-facet-select-change; keyboard ArrowUp/Down/Home/End - OlSearchBar (ol-search-bar): light-DOM wrapper that renders the full .search-bar-component block so existing jQuery selectors and global CSS continue to work without modification SearchBar.js bridge - Detects <ol-search-bar> and switches to event-driven path - Listens for ol-facet-change instead of native <select> change - Skips initCollapsibleMode (handled by OlSearchBar internally) - handleFacetValueChange uses setAttribute for pre-upgrade safety CSS (header-bar.css) - ol-search-bar { display: contents } — transparent to layout - ol-facet-select mirrors legacy .search-facet hide/show behavior: hidden by default on mobile (<568px), visible when expanded or ≥568px nav_head.html - Replaces 36-line .search-bar-component block with single <ol-search-bar facet="all"></ol-search-bar> Rollback: revert nav_head.html change; legacy <select> path in SearchBar.js activates automatically. Playwright E2E tests (playwright.config.mjs + tests/e2e/header-search.spec.mjs): - Desktop: baseline, facet popover open/select, search submit, autocomplete - Mobile: collapsed baseline, tap-to-expand All 8 tests passing; 388 unit tests passing. [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci

…bile overlay Replaces the header's native <select> search bar with a full port of the openlibrary-components prototype ol-search-bar (show-facets / droppable mode). New files: - OlSearchBar.js — Lit Shadow DOM component; panel overlay with instant-search book cards, filter chips, facet bar (availability, language, genre, subject, author, sort), and mobile full-screen overlay. OL adaptations: /search.json API, numFound field, subject param for fiction/genres/subjects, relative URLs. - OlFacetDrop.js — rich facet dropdown (port of prototype ol-facet-drop) - OlHowtoModal.js — search help modal with iframe (port of prototype) - search/filters.js, search/breakpoints.js, search/facets.js — shared constants Changed files: - index.js — exports OlFacetDrop, OlHowtoModal, OlSearchBar - nav_head.html — <ol-search-bar show-facets> replaces old search-bar-component HTML - SearchBar.js — early-exit guard when ol-search-bar[show-facets] is present; new component is self-contained so legacy init is skipped - header-bar.css — replaces display:contents with display:block; width:100% so shadow DOM component fills search-component container correctly Verified at 375px (mobile full-screen overlay), 785px (narrow panel), and 1280px (wide panel with full facet bar) via Playwright screenshots. All 388 JS unit tests pass.

…at ≤785px

…onsistent trigger style - OlFacetDrop rewritten to own its trigger button via OlPopover slot="trigger", matching OlFacetSelect CSS custom properties (--ol-trigger-padding, font-size, etc.) - OlSearchBar._renderFacetBar() replaces old pf-btn + conditional ol-facet-drop rendering with always-present <ol-facet-drop name="genre|subject|author"> elements - Language slot="trigger" button updated to use SVG chevron (matching all other facets) with rotation CSS on ol-select-popover[data-open] - Removed _openFacet, _lastFacetBtn, _toggleFacet, _facetLabel, _isFacetActive, _renderFacetBtn — state now owned by each OlPopover-based component - CSS: combined ol-facet-select and ol-facet-drop pf-wrap rules; removed pf-caret

…ounts+descriptions - Add triggerLabel prop to OlFacetSelect; when set, trigger button always shows that label regardless of selected value - Add count/subParts rendering to option list items (styled count badge + secondary description line with optional hyperlinks) - Widen panel min-width to 220px for the richer option layout - Pass trigger-label="Availability" and full AVAILABILITY_OPTIONS (with staticCount→count and subParts) from OlSearchBar

…Genre OlSelectPopover has :host{display:inline-block} while OlFacetDrop/Select use inline-flex. A flex-stretched inline-block item's cross-size is not treated as definite by Chromium for child height:100% resolution, so the slotted Language trigger was 27px (natural) instead of 32px (bar height). Fix two-part: - OlPopover: add --ol-popover-trigger-align custom property (default: center) so callers can switch align-items from outside without editing internals - OlSearchBar: override ol-select-popover display to inline-flex + align-items stretch (makes cross-size definite for % resolution), and set the custom property so the inner ol-popover also uses stretch All three facet trigger bottoms now land at the same y position.

…xt-align) The OL page wraps ol-search-bar in .search-component which has text-align:right in global CSS. That inherits through the shadow DOM into ol-select-popover's panel, right-aligning the language labels. Adding text-align:left to :host in OlSearchBar resets the inherited value at the shadow root boundary.

…cet popovers - OlFacetDrop: change .footer justify-content from flex-end to center; add width:100% and text-align:center to .clear for full-width hit target - OlSelectPopover: add width:100% and text-align:center to .clear-button - OlSearchBar: change clear-label from "Clear" to "Clear selections" to match the genre/author/subject clear button label

… scrollbar - Move overflow-x:auto + scrollbar-width:none from @media(max-width:600px) to the base .pf-bar rule so the bar can always scroll when content is wider than the panel (e.g. narrow panels or future label additions) - Add min-width:max-content to .pf-wrap so buttons don't shrink below their natural text width — the bar scrolls instead of truncating to ellipsis - Remove the @media(max-width:600px) pf-bar scroll rules (dead code: they were immediately overridden by :host(.mobile-exp) .pf-bar{overflow:visible} at the same breakpoint)

…acet buttons

…er in flex context

…small viewports

- OlFacetSelect: call _onClose() after popover.open=false so _isOpen/ data-open stay in sync (setting open=false directly bypasses the ol-popover-close event that _onClose listens for; chevron would stay stuck open after selecting an option) - SearchBar.js: pierce shadow root via shadowRoot.querySelector('.trigger') instead of jQuery (which cannot reach inside a shadow root); the Shift+Tab focus path from autocomplete results now correctly reaches the ol-facet-select trigger - nav_head.html: add <noscript> fallback form so users with JS disabled (or a failed bundle) still get a working search - .gitignore: add tests/e2e/reports/, tests/e2e/screenshots/, playwright-report/, test-results/ so playwright output never accidentally gets committed - header-search.spec.mjs: replace conditional test.skip guards with hard expect(locator).toBeVisible() assertions; since this PR introduces ol-facet-select, its absence should be a test failure - playwright.config.mjs: document that E2E tests are manual-only and require a running Docker instance

for more information, see https://pre-commit.ci

- Remove dead _olSearchBar jQuery bridge path (only nav_head.html uses ol-search-bar, always with show-facets which early-returns) - Data-drive 3× identical ol-facet-drop blocks via DROPS[] + repeat() - Rename opaque CSS prefixes: pf-* → facet-*, ac-* → suggestion-*, mob-back-* → mobile-header/mobile-back-btn - Extract _renderHeaderMode() and _renderSearchPageMode() from render() so render() is a one-line mode dispatch - Extract named methods _shuffleAuthors, _shuffleSubjects, _openHowto, _closeHowto to replace inline arrow fns in the template - Add Shadow DOM intent note to JSDoc - Fix shadow-root pierce for ol-facet-select trigger focus in SearchBar.js

- Scroll lock: only engage when _mobileExpanded (full-screen overlay), not on every desktop panel open — desktop page was un-scrollable - Mode persistence: add _readMode() reading localStorage 'mode' key; include in both _buildSearchUrl and _fetchAutocomplete so users with 'ebooks' mode aren't silently reset to 'everything' on header search - Suggestion links: remove target="_blank" — autocomplete should navigate in-tab, matching legacy search bar behavior - Gear button: add aria-label="Search help" and type="button" - OlHowtoModal: guard Escape handler on this.open — was firing for every Escape press on the page even when modal was closed - OlHowtoModal: change iframe src to /search/howto (was hard-coded to openlibrary.org, breaking localhost and staging) - Playwright: use single Chromium project; per-describe viewports in the spec already control desktop/mobile — dual projects caused every test to run twice under conflicting device settings - Autocomplete test: replace swallowed .catch(() => null) with a proper expect assertion; update selector from legacy .search-results to shadow-DOM-aware ol-search-bar .suggestion-row

mekarpeles · 2026-05-31T18:38:34Z

filtering by "available" seems to do the wrong thing (shows catalog records as well) -- this may be an edge case where a patron's account is marked as printdisabled and thus they see additional books; in this case, "catalog" would be the wrong classification and it should just read as available.
when multiple languages are selected, the UI correctly shows 'OR' however it seems like the underlying query may be incorrectly using an AND. Test case: selecting both (English OR Spanish) via facet and then genre Mystery.

Copilot AI review requested due to automatic review settings May 17, 2026 19:44

Copilot started reviewing on behalf of mekarpeles May 17, 2026 19:45 View session

Copilot AI reviewed May 17, 2026

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mekarpeles force-pushed the header-search-ux branch from cd72009 to 5e4ba51 Compare May 17, 2026 20:22

mekarpeles assigned lokesh May 18, 2026

mekarpeles force-pushed the header-search-ux branch from 5e4ba51 to fb8f4bb Compare May 19, 2026 22:08

mekarpeles requested a review from Copilot May 19, 2026 22:48

Copilot started reviewing on behalf of mekarpeles May 19, 2026 22:48 View session

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mekarpeles and others added 18 commits May 24, 2026 16:33

docs(ai): add front-end dev environment guide with session lessons

b40d88f

feat(search): migrate facet bar to OL primitives; fix icon alignment …

2fc656a

…at ≤785px

fix(search): add gap:6px to input-row to match panel-input-row spacing

432e8cf

fix(search): add font-weight:500 to Language trigger to match other f…

788e163

…acet buttons

fix(search): fill Language trigger width by stretching inner ol-popov…

06c9b02

…er in flex context

fix(search): prevent popover from sliding over its trigger button at …

199abca

…small viewports

[pre-commit.ci] auto fixes from pre-commit.com hooks

9b2fcc6

for more information, see https://pre-commit.ci

mekarpeles force-pushed the header-search-ux branch from 1626bd4 to 01e7604 Compare May 24, 2026 22:33

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mekarpeles commented May 17, 2026

Summary

Rollback

Screenshots

Desktop (1280px)

Mobile — collapsed (375px)

Mobile — expanded (after tap)

Testing

Notes for Lokesh

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mekarpeles commented May 31, 2026

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