Make suggestions interactive

src/components/Navigation.vue

@@ -6,11 +6,7 @@
     >
         <div class="uk-navbar-left">
             <router-link class="uk-navbar-item uk-logo uk-text-bold" to="/"
-                ><img
-                    src="/img/icons/logo.svg"
-                    height="32"
-                    width="32"
-                />iped</router-link
+                ><img src="/img/icons/logo.svg" height="32" width="32" />iped</router-link
             >
         </div>
         <div class="uk-navbar-center uk-flex uk-visible@m">
@@ -19,7 +15,7 @@
                 type="text"
                 placeholder="Search"
                 v-model="searchText"
-                @keypress="onChange($event)"
+                @keydown="onKeyDown"
                 @focus="onInputFocus"
                 @blur="onInputBlur"
             />
@@ -44,20 +40,20 @@
             type="text"
             placeholder="Search"
             v-model="searchText"
-            @keypress="onChange($event)"
+            @keydown="onKeyDown"
             @focus="onInputFocus"
             @blur="onInputBlur"
         />
     </div>
     <SearchSuggestions
-        v-if="searchText && suggestionsVisible && searchSuggestions.length > 0"
-        :searchSuggestions="searchSuggestions"
+        v-show="searchText && suggestionsVisible"
+        :searchText="searchText"
+        @searchchange="onSearchTextChange"
     />
 </template>
 
 <script>
 import SearchSuggestions from "@/components/SearchSuggestions";
-import Constants from "@/Constants.js";
 
 export default {
     components: {
@@ -66,31 +62,29 @@ export default {
     data() {
         return {
             searchText: "",
-            searchSuggestions: [],
             suggestionsVisible: false
         };
     },
     methods: {
-        async onChange(e) {
+        onKeyDown(e) {
             if (e.key === "Enter") {
                 this.$router.push({
                     name: "SearchResults",
                     query: { search_query: this.searchText }
                 });
                 return;
+            } else if (e.key === "ArrowUp" || e.key === "ArrowDown") {
+                e.preventDefault();
             }
-
-            this.searchSuggestions = await this.fetchJson(
-                Constants.BASE_URL +
-                    "/suggestions?query=" +
-                    encodeURI(this.searchText + e.key)
-            );
         },
         onInputFocus() {
             this.suggestionsVisible = true;
         },
         onInputBlur() {
             this.suggestionsVisible = false;
+        },
+        onSearchTextChange(searchText) {
+            this.searchText = searchText;
         }
     }
 };

src/components/SearchSuggestions.vue

@@ -1,9 +1,12 @@
 <template>
-    <div
-        class="uk-position-absolute uk-panel uk-box-shadow-large uk-padding-small suggestions-container"
-    >
+    <div class="uk-position-absolute uk-panel uk-box-shadow-large suggestions-container">
         <ul class="uk-list uk-margin-remove uk-text-secondary">
-            <li v-for="(suggestion, i) in searchSuggestions" :key="i">
+            <li
+                v-for="(suggestion, i) in searchSuggestions"
+                :key="i"
+                :class="{ selected: selected === i }"
+                class="uk-margin-remove suggestion"
+            >
                 {{ suggestion }}
             </li>
         </ul>
@@ -11,9 +14,57 @@
 </template>
 
 <script>
+import Constants from "@/Constants.js";
+
 export default {
     props: {
-        searchSuggestions: Array
+        searchText: String
+    },
+    data() {
+        return {
+            selected: 0,
+            searchSuggestions: []
+        };
+    },
+    methods: {
+        onKeyUp(e) {
+            if (e.key === "ArrowUp") {
+                if (this.selected <= 0) {
+                    this.selected = this.searchSuggestions.length - 1;
+                } else {
+                    this.selected -= 1;
+                }
+                e.preventDefault();
+            } else if (e.key === "ArrowDown") {
+                if (this.selected >= this.searchSuggestions.length - 1) {
+                    this.selected = 0;
+                } else {
+                    this.selected += 1;
+                }
+                e.preventDefault();
+            } else {
+                this.refreshSuggestions();
+            }
+        },
+        async refreshSuggestions() {
+            this.searchSuggestions = await this.fetchJson(
+                Constants.BASE_URL + "/suggestions?query=" + encodeURI(this.searchText)
+            );
+            this.searchSuggestions.unshift(this.searchText);
+        }
+    },
+    watch: {
+        selected(newValue, oldValue) {
+            if (newValue !== oldValue && this.searchSuggestions[this.selected]) {
+                this.$emit("searchchange", this.searchSuggestions[this.selected]);
+            }
+        }
+    },
+    mounted() {
+        window.addEventListener("keyup", this.onKeyUp);
+    },
+    beforeUnmount() {
+        window.removeEventListener("keyup", this.onKeyUp);
     }
 };
 </script>
@@ -26,6 +77,13 @@ export default {
     max-width: 640px;
     width: 100%;
     box-sizing: border-box;
+    padding: 5px 0;
+}
+.suggestion {
+    padding: 4px 15px;
+}
+.suggestion.selected {
+    background-color: #393d3d;
 }
 @media screen and (max-width: 959px) {
     .suggestions-container {