From be8de118db913711eb72ae5187d26e54a0055727 Mon Sep 17 00:00:00 2001
From: 简律纯 <i@jyunko.cn>
Date: Fri, 15 Dec 2023 09:11:47 +0800
Subject: refactor(docs): optmst `docs` dir & `deps`

---
 .../javascripts/components/search/suggest/index.ts | 154 +++++++++++++++++++++
 1 file changed, 154 insertions(+)
 create mode 100644 docs/src/templates/assets/javascripts/components/search/suggest/index.ts

(limited to 'docs/src/templates/assets/javascripts/components/search/suggest')

diff --git a/docs/src/templates/assets/javascripts/components/search/suggest/index.ts b/docs/src/templates/assets/javascripts/components/search/suggest/index.ts
new file mode 100644
index 00000000..e7881475
--- /dev/null
+++ b/docs/src/templates/assets/javascripts/components/search/suggest/index.ts
@@ -0,0 +1,154 @@
+/*
+ * Copyright (c) 2016-2023 Martin Donath <martin.donath@squidfunk.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+import {
+  Observable,
+  Subject,
+  asyncScheduler,
+  combineLatestWith,
+  distinctUntilChanged,
+  filter,
+  finalize,
+  fromEvent,
+  map,
+  merge,
+  observeOn,
+  tap
+} from "rxjs"
+
+import { Keyboard } from "~/browser"
+import {
+  SearchMessage,
+  SearchResult,
+  isSearchResultMessage
+} from "~/integrations"
+
+import { Component, getComponentElement } from "../../_"
+
+/* ----------------------------------------------------------------------------
+ * Types
+ * ------------------------------------------------------------------------- */
+
+/**
+ * Search suggestions
+ */
+export interface SearchSuggest {}
+
+/* ----------------------------------------------------------------------------
+ * Helper types
+ * ------------------------------------------------------------------------- */
+
+/**
+ * Mount options
+ */
+interface MountOptions {
+  keyboard$: Observable<Keyboard>      /* Keyboard observable */
+  worker$: Subject<SearchMessage>      /* Search worker */
+}
+
+/* ----------------------------------------------------------------------------
+ * Functions
+ * ------------------------------------------------------------------------- */
+
+/**
+ * Mount search suggestions
+ *
+ * This function will perform a lazy rendering of the search results, depending
+ * on the vertical offset of the search result container.
+ *
+ * @param el - Search result list element
+ * @param options - Options
+ *
+ * @returns Search result list component observable
+ */
+export function mountSearchSuggest(
+  el: HTMLElement, { worker$, keyboard$ }: MountOptions
+): Observable<Component<SearchSuggest>> {
+  const push$ = new Subject<SearchResult>()
+
+  /* Retrieve query component and track all changes */
+  const query  = getComponentElement("search-query")
+  const query$ = merge(
+    fromEvent(query, "keydown"),
+    fromEvent(query, "focus")
+  )
+    .pipe(
+      observeOn(asyncScheduler),
+      map(() => query.value),
+      distinctUntilChanged(),
+    )
+
+  /* Update search suggestions */
+  push$
+    .pipe(
+      combineLatestWith(query$),
+      map(([{ suggest }, value]) => {
+        const words = value.split(/([\s-]+)/)
+        if (suggest?.length && words[words.length - 1]) {
+          const last = suggest[suggest.length - 1]
+          if (last.startsWith(words[words.length - 1]))
+            words[words.length - 1] = last
+        } else {
+          words.length = 0
+        }
+        return words
+      })
+    )
+      .subscribe(words => el.innerHTML = words
+        .join("")
+        .replace(/\s/g, "&nbsp;")
+      )
+
+  /* Set up search keyboard handlers */
+  keyboard$
+    .pipe(
+      filter(({ mode }) => mode === "search")
+    )
+      .subscribe(key => {
+        switch (key.type) {
+
+          /* Right arrow: accept current suggestion */
+          case "ArrowRight":
+            if (
+              el.innerText.length &&
+              query.selectionStart === query.value.length
+            )
+              query.value = el.innerText
+            break
+        }
+      })
+
+  /* Filter search result message */
+  const result$ = worker$
+    .pipe(
+      filter(isSearchResultMessage),
+      map(({ data }) => data)
+    )
+
+  /* Create and return component */
+  return result$
+    .pipe(
+      tap(state => push$.next(state)),
+      finalize(() => push$.complete()),
+      map(() => ({ ref: el }))
+    )
+}
-- 
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