Fix search typeahead accessibility

client/src/app/header/search-typeahead.component.html

@@ -2,7 +2,7 @@
   <input
     type="search" id="search-video" name="search-video" #searchVideo i18n-placeholder placeholder="Search videos, playlists, channels…"
     [(ngModel)]="search" (ngModelChange)="onSearchChange()" (keydown)="handleKey($event)"
-    autocomplete="off"
+    autocomplete="off" aria-describedby="typeahead-input-help"
   >
 
   <button class="border-0 search-button" title="Search" i18n-title (click)="doSearch()">
@@ -17,40 +17,38 @@
         role="option" aria-selected="true" tabindex="0"
         (mouseenter)="onSuggestionHover(i)" (click)="onSuggestionClicked(result)" (keyup.enter)="onSuggestionClicked(result)"
       >
-        <my-suggestion [result]="result" [highlight]="search"></my-suggestion>
+        <my-suggestion
+          [result]="result" [highlight]="search"
+          [describedby]="showSearchGlobalHelp() ? 'typeahead-help' : undefined"
+        ></my-suggestion>
       </li>
     </ul>
 
     <!-- suggestion help, not shown until one of the suggestions is selected and specific to that suggestion -->
-    <div *ngIf="showSearchGlobalHelp()" id="typeahead-help" class="overflow-hidden">
+    <div *ngIf="showSearchGlobalHelp()" id="typeahead-suggestion-help" class="overflow-hidden">
       <div class="d-flex justify-content-between">
-        <div class="small-title" i18n>GLOBAL SEARCH</div>
-        <div class="advanced-search-status muted">
-          <span *ngIf="serverConfig" class="me-1" i18n>using {{ serverConfig.search.searchIndex.url }}</span>
-        </div>
+        <div class="small-title mb-2" i18n>GLOBAL SEARCH</div>
+
+        <span *ngIf="serverConfig" class="muted" i18n>using {{ serverConfig.search.searchIndex.url }}</span>
       </div>
+
       <div class="muted" i18n>Results will be augmented with those of a third-party index. Only data necessary to make the query will be sent.</div>
     </div>
 
     <!-- search instructions, when search input is empty -->
-    <div *ngIf="areInstructionsDisplayed()" id="typeahead-instructions" class="overflow-hidden">
+    <div [hidden]="this.search" id="typeahead-input-help" class="overflow-hidden">
       <span class="muted" i18n>Your query will be matched against video names or descriptions, channel names.</span>
-      <div class="d-flex justify-content-between mt-3">
-        <div class="small-title" i18n>ADVANCED SEARCH</div>
-        <div class="advanced-search-status c-help">
-          <span [ngClass]="canSearchAnyURI ? 'text-success' : 'muted'" i18n-title title="Determines whether you can resolve any distant content, or if this instance only allows doing so for instances it follows.">
-            <span *ngIf="canSearchAnyURI()" class="me-1" i18n>any instance</span>
-            <span *ngIf="!canSearchAnyURI()" class="me-1" i18n>only followed instances</span>
-          </span>
-        </div>
-      </div>
+      <div class="mt-3 mb-2 small-title" i18n>ADVANCED SEARCH</div>
+
       <ul>
         <li>
           <em>&#64;channel_id&#64;domain</em> <span class="flex-auto muted" i18n>will list the matching channel</span>
         </li>
+
         <li>
           <em>URL</em> <span class="muted" i18n>will list the matching channel</span>
         </li>
+
         <li>
           <em>UUID</em> <span class="muted" i18n>will list the matching video</span>
         </li>

client/src/app/header/search-typeahead.component.scss

@@ -37,27 +37,25 @@
   width: 100%;
 }
 
-#typeahead-help,
-#typeahead-instructions,
-li.suggestion {
+#typeahead-suggestion-help,
+#typeahead-input-help,
+.suggestion {
   border: 1px solid pvar(--mainBackgroundColor);
   background: pvar(--mainBackgroundColor);
   transition: .3s ease;
   transition-property: box-shadow;
   cursor: pointer;
-
-  // soft border-radius for the last suggestion and the link inside
-  &:last-of-type {
-    &,
-    ::ng-deep a {
-      border-bottom-right-radius: 3px;
-      border-bottom-left-radius: 3px;
-    }
-  }
 }
 
-#typeahead-help,
-#typeahead-instructions {
+#typeahead-suggestion-help,
+#typeahead-input-help,
+.suggestion:last-of-type {
+  border-bottom-right-radius: 3px;
+  border-bottom-left-radius: 3px;
+}
+
+#typeahead-suggestion-help,
+#typeahead-input-help {
   margin-top: 9px;
   width: 100%;
   padding: .5rem 1rem;
@@ -110,21 +108,20 @@ li.suggestion {
     display: none;
   }
 
-  &:focus,
-  ::ng-deep &:focus-within {
+  &:focus-within {
     > div:last-child {
       @media screen and (min-width: $mobile-view) {
         display: initial !important;
       }
 
-      #typeahead-help,
-      #typeahead-instructions,
-      li.suggestion {
+      #typeahead-suggestion-help,
+      #typeahead-input-help,
+      .suggestion {
         box-shadow: rgba(0, 0, 0, 0.2) 0 10px 20px -5px;
       }
     }
 
-    ::ng-deep input {
+    input {
       box-shadow: rgba(0, 0, 0, 0.2) 0 1px 20px 0;
       border-end-start-radius: 0;
       border-end-end-radius: 0;
@@ -136,21 +133,10 @@ li.suggestion {
   }
 }
 
-.advanced-search-status {
-  height: max-content;
-  cursor: default;
-
-  &.c-help {
-    cursor: help;
-  }
-}
-
 .small-title {
   @include in-content-small-title;
-
-  margin-bottom: .5rem;
 }
 
-::ng-deep my-suggestion {
+my-suggestion {
   width: 100%;
 }

client/src/app/header/search-typeahead.component.ts

@@ -70,10 +70,6 @@ export class SearchTypeaheadComponent implements OnInit, AfterViewChecked, OnDes
     if (this.keyboardEventsManager) this.keyboardEventsManager.change.unsubscribe()
   }
 
-  areInstructionsDisplayed () {
-    return !this.search
-  }
-
   showSearchGlobalHelp () {
     return this.search && this.areSuggestionsOpened && this.keyboardEventsManager?.activeItem?.result?.type === 'search-index'
   }

client/src/app/header/suggestion.component.html

@@ -1,18 +1,18 @@
-<a tabindex="-1" class="d-flex flex-auto flex-items-center p-2" [class.focus-visible]="active">
-  <div class="flex-shrink-0 me-2 text-center">
-    <my-global-icon iconName="search"></my-global-icon>
-  </div>
-
-  <img class="avatar me-2 flex-shrink-0 d-none" alt="" aria-label="Team" src="" width="28" height="28">
+<a
+  tabindex="-1" class="d-flex flex-auto align-center p-2" [class.focus-visible]="active"
+  [title]="getTitle()"
+  [attr.aria-describedby]="describedby"
+>
+  <my-global-icon class="me-2" iconName="search"></my-global-icon>
 
   <div
-    class="flex-auto overflow-hidden text-start no-wrap css-truncate css-truncate-target"
+    class="flex-auto overflow-hidden no-wrap d-flex align-center"
     [attr.aria-label]="result.text"
   >
     {{ result.text }}
   </div>
 
-  <div class="border rounded flex-shrink-0 px-1 bg-gray text-gray-light ms-1 f6">
+  <div class="result-type border rounded flex-shrink-0 px-1 ms-1 f6">
     <span *ngIf="result.type === 'search-instance'" i18n>In this instance's network</span>
     <span *ngIf="result.type === 'search-index'" i18n>In the vidiverse</span>
   </div>

client/src/app/header/suggestion.component.scss

@@ -17,11 +17,8 @@ a {
   }
 }
 
-.bg-gray {
+.result-type {
   background-color: pvar(--mainBackgroundColor);
-}
-
-.text-gray-light {
   color: pvar(--mainForegroundColor);
 }
 
@@ -30,6 +27,5 @@ my-global-icon {
 
   width: 17px;
   position: relative;
-  top: -2px;
-  margin: 5px;
+  top: -1px;
 }

client/src/app/header/suggestion.component.ts

@@ -23,12 +23,16 @@ export type SuggestionPayloadType = 'search-instance' | 'search-index'
 export class SuggestionComponent implements OnInit, ListKeyManagerOption {
   @Input() result: SuggestionPayload
   @Input() highlight: string
+  @Input() describedby: string
 
   disabled = false
   active = false
 
-  getLabel () {
-    return this.result.text
+  getTitle () {
+    if (this.result.type === 'search-instance') return $localize`Search "${this.result.text}" in this instance's network`
+    if (this.result.type === 'search-index') return $localize`Search "${this.result.text}" in the vidiverse`
+
+    return undefined
   }
 
   ngOnInit () {