diff --git a/docs/content/javascripts/pkg-search.js b/docs/content/javascripts/pkg-search.js new file mode 100644 index 00000000..fb6087b4 --- /dev/null +++ b/docs/content/javascripts/pkg-search.js @@ -0,0 +1,226 @@ +/* + * Scoped package search. + * + * Every generated package-overview page (see docs/gen_pages.py) carries a + * `
` marker. This + * turns each into an in-page search box that queries ONLY that package's subtree + * of the site search index (site/search.json) — classes, functions, attributes, + * and prose under `data-scope`, deep-linked to their anchors. + * + * The full index is fetched lazily (first focus) and cached across widgets. While + * a query is active the card grid is hidden and ranked results take its place; + * clearing the box restores the grid. Everything is wrapped in try/catch and + * degrades to the plain card grid if anything goes wrong or JS is disabled. + */ +(function () { + "use strict"; + + var MAX_RESULTS = 40; + + // --- shared index (fetched once) ----------------------------------------- + + var indexPromise = null; + + function siteBase() { + try { + var cfg = JSON.parse(document.getElementById("__config").textContent); + return String(cfg.base || ".").replace(/\/?$/, "/"); + } catch (e) { + return "./"; + } + } + var BASE = siteBase(); + + function loadIndex() { + if (!indexPromise) { + indexPromise = fetch(new URL(BASE + "search.json", location.href).href) + .then(function (r) { return r.json(); }) + .then(function (d) { return (d && d.items) || []; }) + .catch(function () { return []; }); + } + return indexPromise; + } + + // --- helpers -------------------------------------------------------------- + + var SCRATCH = document.createElement("div"); + function stripTags(html) { + if (!html) return ""; + SCRATCH.innerHTML = html; + return (SCRATCH.textContent || "").replace(/\s+/g, " ").trim(); + } + + function escapeHtml(s) { + return s.replace(/[&<>"]/g, function (c) { + return { "&": "&", "<": "<", ">": ">", '"': """ }[c]; + }); + } + + function resolve(location_) { + try { + return new URL(BASE + location_, location.href).href; + } catch (e) { + return location_; + } + } + + // Build a ~160-char window of `text` around the first matched term, with every + // term wrapped in . Operates on already-stripped plain text. + function snippet(text, terms) { + if (!text) return ""; + var lower = text.toLowerCase(); + var at = -1; + for (var i = 0; i < terms.length; i++) { + var p = lower.indexOf(terms[i]); + if (p !== -1 && (at === -1 || p < at)) at = p; + } + var start = at === -1 ? 0 : Math.max(0, at - 40); + var slice = text.slice(start, start + 160); + if (start > 0) slice = "… " + slice; + if (start + 160 < text.length) slice = slice + " …"; + + var out = escapeHtml(slice); + terms.forEach(function (t) { + if (!t) return; + var re = new RegExp("(" + t.replace(/[.*+?^${}()|[\]\\]/g, "\\$&") + ")", "ig"); + out = out.replace(re, "$1"); + }); + return out; + } + + function rank(items, scope, selfPage, terms) { + var results = []; + for (var i = 0; i < items.length; i++) { + var it = items[i]; + var loc = it.location || ""; + if (loc.indexOf(scope) !== 0) continue; // outside this subtree + if (loc === selfPage || loc.indexOf(selfPage + "#") === 0) continue; // self + + var title = stripTags(it.title); + var text = stripTags(it.text); + var hayTitle = title.toLowerCase(); + var hayText = text.toLowerCase(); + + var score = 0, ok = true; + for (var t = 0; t < terms.length; t++) { + var inTitle = hayTitle.indexOf(terms[t]) !== -1; + var inText = hayText.indexOf(terms[t]) !== -1; + if (!inTitle && !inText) { ok = false; break; } + score += inTitle ? 10 : 1; + } + if (!ok) continue; + + results.push({ href: resolve(loc), title: title, text: text, + path: it.path || [], score: score }); + } + results.sort(function (a, b) { + return b.score - a.score || a.title.length - b.title.length; + }); + return results.slice(0, MAX_RESULTS); + } + + // --- widget --------------------------------------------------------------- + + function mount(widget) { + if (widget.__pkgWired) return; + widget.__pkgWired = true; + + var scope = widget.getAttribute("data-scope") || ""; + var label = widget.getAttribute("data-label") || "this package"; + var selfPage = scope + "index.html"; + var grid = widget.parentElement + ? widget.parentElement.querySelector(".grid.cards") + : null; + + var input = document.createElement("input"); + input.type = "search"; + input.className = "pkg-search__input"; + input.placeholder = "Search " + label + "…"; + input.setAttribute("aria-label", "Search " + label); + + var results = document.createElement("div"); + results.className = "pkg-search__results"; + results.hidden = true; + + widget.appendChild(input); + widget.appendChild(results); + + function showGrid(show) { + if (grid) grid.style.display = show ? "" : "none"; + } + + function render(list, terms, q) { + if (!list.length) { + results.innerHTML = + '

No matches for “' + + escapeHtml(q) + "” in " + escapeHtml(label) + ".

"; + return; + } + var html = ['"); + results.innerHTML = html.join(""); + } + + var scheduled = false; + function schedule() { + if (scheduled) return; + scheduled = true; + requestAnimationFrame(function () { + scheduled = false; + run(); + }); + } + + function run() { + var q = input.value.trim(); + if (!q) { + results.hidden = true; + results.innerHTML = ""; + showGrid(true); + return; + } + var terms = q.toLowerCase().split(/\s+/).filter(Boolean); + showGrid(false); + results.hidden = false; + loadIndex().then(function (items) { + if (input.value.trim() !== q) return; // superseded by newer keystroke + render(rank(items, scope, selfPage, terms), terms, q); + }); + } + + input.addEventListener("focus", loadIndex, { once: true }); + input.addEventListener("input", schedule); + input.addEventListener("keydown", function (e) { + if (e.key === "Escape") { input.value = ""; run(); } + }); + } + + function start() { + try { + var widgets = document.querySelectorAll(".pkg-search[data-scope]"); + for (var i = 0; i < widgets.length; i++) mount(widgets[i]); + } catch (e) { + /* leave the card grid as-is */ + } + } + + if (document.readyState === "loading") { + document.addEventListener("DOMContentLoaded", start); + } else { + start(); + } +})(); diff --git a/docs/content/stylesheets/openswarm.css b/docs/content/stylesheets/openswarm.css index a47ef073..b4b46ed4 100644 --- a/docs/content/stylesheets/openswarm.css +++ b/docs/content/stylesheets/openswarm.css @@ -133,3 +133,95 @@ .md-search__form { border-radius: 0.4rem; } + +/* ---------------------------------------------------------------------------- + * Scoped package search (pkg-search.js) — the in-page box on overview pages + * ------------------------------------------------------------------------- */ +/* Empty when JS is off or a package is small: collapse it so it leaves no gap. */ +.md-typeset .pkg-search:empty { + display: none; +} + +.md-typeset .pkg-search { + margin: 0 0 1.2em; +} + +.md-typeset .pkg-search__input { + width: 100%; + box-sizing: border-box; + padding: 0.55em 0.8em; + font-size: 0.78rem; + color: var(--md-default-fg-color); + background: var(--md-default-bg-color); + border: 1px solid var(--md-default-fg-color--lightest); + border-radius: 0.4rem; + transition: border-color 120ms, box-shadow 120ms; +} + +.md-typeset .pkg-search__input::placeholder { + color: var(--md-default-fg-color--lighter); +} + +.md-typeset .pkg-search__input:focus { + outline: none; + border-color: var(--md-accent-fg-color); + box-shadow: 0 0 0 2px var(--md-accent-fg-color--transparent); +} + +.md-typeset .pkg-search__results { + margin-top: 0.6em; +} + +.md-typeset .pkg-search__list { + list-style: none; + margin: 0; + padding: 0; +} + +.md-typeset .pkg-search__list > li { + margin: 0; + border-bottom: 1px solid var(--md-default-fg-color--lightest); +} + +.md-typeset .pkg-search__list > li > a { + display: block; + padding: 0.55em 0.4em; + border-radius: 0.3rem; +} + +.md-typeset .pkg-search__list > li > a:hover { + background: var(--md-accent-fg-color--transparent); +} + +.md-typeset .pkg-search__title { + display: block; + font-weight: 600; + color: var(--md-typeset-a-color); +} + +.md-typeset .pkg-search__crumb { + display: block; + font-size: 0.66rem; + color: var(--md-default-fg-color--lighter); + margin-top: 0.1em; +} + +.md-typeset .pkg-search__snip { + display: block; + font-size: 0.72rem; + color: var(--md-default-fg-color--light); + margin-top: 0.2em; +} + +.md-typeset .pkg-search__snip mark { + background: var(--md-accent-fg-color--transparent); + color: inherit; + padding: 0 0.1em; + border-radius: 0.15em; +} + +.md-typeset .pkg-search__empty { + font-size: 0.74rem; + color: var(--md-default-fg-color--light); + margin: 0.4em 0; +} diff --git a/docs/gen_pages.py b/docs/gen_pages.py index e5d015ce..399ac531 100644 --- a/docs/gen_pages.py +++ b/docs/gen_pages.py @@ -226,6 +226,11 @@ def _dest_reference(py: Path) -> Path: _SUBPKG_ICON = ":material-folder:" _MODULE_ICON = ":material-file-code:" +# Below this many children a scoped-search box is more clutter than help, so the +# overview is just the card grid. The widget itself is wired by +# content/javascripts/pkg-search.js, keyed off the emitted ``.pkg-search`` marker. +_SEARCH_MIN_CHILDREN = 6 + def _module_docstring(py: Path) -> str: """Return ``py``'s module-level docstring (stripped), or '' when absent. @@ -304,6 +309,17 @@ def _render_package_overview(py: Path) -> str: if pkg_doc: out += [pkg_doc, ""] + # Scoped-search marker: pkg-search.js fills this with an input that searches + # only this package's subtree of the site index (data-scope is the URL prefix + # every descendant page shares). Gated on child count so tiny packages stay + # clean; degrades to an empty (CSS-hidden) div when JS is off. + if len(subpackages) + len(modules) >= _SEARCH_MIN_CHILDREN: + scope = "/".join(parts) + "/" + out += [ + f'
', + "", + ] + cards = [_card(_SUBPKG_ICON, n, link, s, "Subpackage") for n, link, s in subpackages] cards += [_card(_MODULE_ICON, n, link, s, "Module") for n, link, s in modules] diff --git a/docs/zensical.toml b/docs/zensical.toml index b122d98b..f0cdcbb2 100644 --- a/docs/zensical.toml +++ b/docs/zensical.toml @@ -26,7 +26,7 @@ extra_css = ["stylesheets/openswarm.css"] # Seed the search modal with a few "suggested pages" while the query is empty, so # it isn't blank on open (command-palette style). See the script header for how it # slots into the modal's shadow DOM. -extra_javascript = ["javascripts/search-suggestions.js"] +extra_javascript = ["javascripts/search-suggestions.js", "javascripts/pkg-search.js"] # Drop the "Made with Zensical" attribution from the footer (copyright.html # skips the generator block when this is false).