feat: hide search results container if no keyword is given (#1288)

feat: hide search results container if no keyword is given and add typing

assets/scss/partials/layout/search.scss

@@ -79,3 +79,9 @@
     }
 
 }
+
+.search-result {
+    &.hidden {
+        display: none;
+    }
+}

assets/ts/search.tsx

@@ -26,15 +26,15 @@ const tagsToReplace = {
     '…': '…'
 };
 
-function replaceTag(tag) {
-    return tagsToReplace[tag] || tag;
+function replaceTag(tag: string) {
+    return (tagsToReplace as Record<string, string>)[tag] || tag;
 }
 
-function replaceHTMLEnt(str) {
+function replaceHTMLEnt(str: string) {
     return str.replace(/[&<>"]/g, replaceTag);
 }
 
-function escapeRegExp(string) {
+function escapeRegExp(string: string) {
     return string.replace(/[.*+\-?^${}()|[\]\\]/g, '\\$&');
 }
 
@@ -45,13 +45,21 @@ class Search {
     private list: HTMLDivElement;
     private resultTitle: HTMLHeadElement;
     private resultTitleTemplate: string;
+    private container: HTMLDivElement;
 
-    constructor({ form, input, list, resultTitle, resultTitleTemplate }) {
+    constructor({ form, input, list, resultTitle, resultTitleTemplate }: {
+        form: HTMLFormElement,
+        input: HTMLInputElement,
+        list: HTMLDivElement,
+        resultTitle: HTMLHeadingElement,
+        resultTitleTemplate: string
+    }) {
         this.form = form;
         this.input = input;
         this.list = list;
         this.resultTitle = resultTitle;
         this.resultTitleTemplate = resultTitleTemplate;
+        this.container = list.parentElement as HTMLDivElement;
 
         /// Check if there's already value in the search input
         if (this.input.value.trim() !== '') {
@@ -203,16 +211,18 @@ class Search {
         const endTime = performance.now();
 
         this.resultTitle.innerText = this.generateResultTitle(results.length, ((endTime - startTime) / 1000).toPrecision(1));
+
+        this.container?.classList.remove('hidden');
     }
 
-    private generateResultTitle(resultLen, time) {
-        return this.resultTitleTemplate.replace("#PAGES_COUNT", resultLen).replace("#TIME_SECONDS", time);
+    private generateResultTitle(resultLen: number, time: string) {
+        return this.resultTitleTemplate.replace("#PAGES_COUNT", resultLen.toString()).replace("#TIME_SECONDS", time);
     }
 
     public async getData() {
         if (!this.data) {
             /// Not fetched yet
-            const jsonURL = this.form.dataset.json;
+            const jsonURL = this.form.dataset.json as string;
             this.data = await fetch(jsonURL).then(res => res.json());
             const parser = new DOMParser();
 
@@ -227,7 +237,7 @@ class Search {
     private bindSearchForm() {
         let lastSearch = '';
 
-        const eventHandler = (e) => {
+        const eventHandler = (e: Event) => {
             e.preventDefault();
             const keywords = this.input.value.trim();
 
@@ -251,6 +261,7 @@ class Search {
     private clear() {
         this.list.innerHTML = '';
         this.resultTitle.innerText = '';
+        this.container.classList.add('hidden');
     }
 
     private bindQueryStringChange() {
@@ -261,7 +272,7 @@ class Search {
 
     private handleQueryString() {
         const pageURL = new URL(window.location.toString());
-        const keywords = pageURL.searchParams.get('keyword');
+        const keywords = pageURL.searchParams.get('keyword') || '';
         this.input.value = keywords;
 
         if (keywords) {
@@ -291,7 +302,8 @@ class Search {
     }
 
     public static render(item: pageData) {
-        return <article>
+        return (
+            <article>
                 <a href={item.permalink}>
                     <div class="article-details">
                         <h2 class="article-title" dangerouslySetInnerHTML={{ __html: item.title }}></h2>
@@ -303,7 +315,8 @@ class Search {
                         </div>
                     }
                 </a>
-        </article>;
+            </article>
+        );
     }
 }
 
@@ -316,10 +329,12 @@ declare global {
 window.addEventListener('load', () => {
     setTimeout(function () {
         const searchForm = document.querySelector('.search-form') as HTMLFormElement,
-            searchInput = searchForm.querySelector('input') as HTMLInputElement,
+            searchInput = searchForm?.querySelector('input') as HTMLInputElement,
             searchResultList = document.querySelector('.search-result--list') as HTMLDivElement,
             searchResultTitle = document.querySelector('.search-result--title') as HTMLHeadingElement;
 
+        if (!searchForm || !searchInput || !searchResultList || !searchResultTitle) return;
+
         new Search({
             form: searchForm,
             input: searchInput,

layouts/page/search.html

@@ -16,7 +16,7 @@
     </button>
 </form>
 
-<div class="search-result">
+<div class="search-result hidden">
     <h3 class="search-result--title section-title"></h3>
     <div class="search-result--list article-list--compact"></div>
 </div>