From e67395d1ee0e83634a0f8b241fde4f1293ec4f47 Mon Sep 17 00:00:00 2001
From: Eva Decker <itsevadecker@gmail.com>
Date: Wed, 22 Nov 2023 13:36:24 -0500
Subject: [PATCH] fix: Do not overwrite search query when input is focused
 (#132)

---
 src/routes/+page.svelte | 51 ++++++++++++++++++++++++++++-------------
 1 file changed, 35 insertions(+), 16 deletions(-)

diff --git a/src/routes/+page.svelte b/src/routes/+page.svelte
index 4170694..357a26a 100644
--- a/src/routes/+page.svelte
+++ b/src/routes/+page.svelte
@@ -7,11 +7,20 @@
   import SearchIcon from '~icons/ri/search-line';
   import CloseCircleIcon from '~icons/ri/close-circle-fill';
   import { scale } from 'svelte/transition';
-  import type { FormEventHandler, KeyboardEventHandler } from 'svelte/elements.js';
+  import type {
+    FocusEventHandler,
+    FormEventHandler,
+    KeyboardEventHandler
+  } from 'svelte/elements.js';
 
   export let data;
 
-  $: currentQuery = $page.url.searchParams.get('q') || '';
+  let isFocused = false;
+  let currentQuery = '';
+
+  $: if (!isFocused) {
+    currentQuery = $page.url.searchParams.get('q') || '';
+  }
   $: currentPage = Number($page.url.searchParams.get('page')) || 1;
   $: currentTag = $page.url.searchParams.get('tag') as Enums<'tags'> | null;
 
@@ -36,31 +45,39 @@
     debounceTimer = setTimeout(callback, 250);
   };
 
+  const handleSearch: FormEventHandler<HTMLInputElement> = (e) => {
+    currentQuery = e.currentTarget.value;
+    const newURL = new URL($page.url);
+    newURL.searchParams.delete('page');
+
+    if (currentQuery) {
+      newURL.searchParams.set('q', currentQuery);
+    } else {
+      newURL.searchParams.delete('q');
+    }
+
+    debounce(() => goto(newURL, { keepFocus: true, replaceState: true }));
+  };
+
   const handleClearSearch = () => {
     const newURL = new URL($page.url);
     newURL.searchParams.delete('tag');
     newURL.searchParams.delete('q');
-    goto(newURL, { keepFocus: true });
+    goto(newURL, { keepFocus: true, replaceState: true });
   };
 
-  const handleSearchKeydown: KeyboardEventHandler<HTMLInputElement> = (e) => {
+  const handleKeydown: KeyboardEventHandler<HTMLInputElement> = (e) => {
     if (e.key === 'Backspace' && currentQuery === '') {
       handleClearSearch();
     }
   };
 
-  const handleSearch: FormEventHandler<HTMLInputElement> = (e) => {
-    currentQuery = e.currentTarget.value;
-    const newURL = new URL($page.url);
-    newURL.searchParams.delete('page');
-
-    if (currentQuery) {
-      newURL.searchParams.set('q', currentQuery);
-    } else {
-      newURL.searchParams.delete('q');
-    }
+  const handleFocus: FocusEventHandler<HTMLInputElement> = () => {
+    isFocused = true;
+  };
 
-    debounce(() => goto(newURL, { keepFocus: true }));
+  const handleBlur: FocusEventHandler<HTMLInputElement> = () => {
+    isFocused = false;
   };
 
   const handleTagClick = (tag: Enums<'tags'> | null) => {
@@ -127,7 +144,9 @@
       placeholder="Search covers…"
       value={currentQuery}
       on:input={handleSearch}
-      on:keydown={handleSearchKeydown}
+      on:keydown={handleKeydown}
+      on:focus={handleFocus}
+      on:blur={handleBlur}
     />
     {#if currentQuery.length > 0}
       <button