feat: Add insert content via gboard

lib/pages/chat/input_bar.dart

@@ -444,13 +444,29 @@ class InputBar extends StatelessWidget {
                 ),
               },
         child: TypeAheadField<Map<String, String?>>(
-          direction: AxisDirection.up,
+          direction: VerticalDirection.up,
           hideOnEmpty: true,
           hideOnLoading: true,
-          keepSuggestionsOnSuggestionSelected: true,
+          controller: controller,
+          focusNode: focusNode,
+          hideOnSelect: false,
           debounceDuration: const Duration(milliseconds: 50),
           // show suggestions after 50ms idle time (default is 300)
-          textFieldConfiguration: TextFieldConfiguration(
+          builder: (context, controller, focusNode) => TextField(
+            controller: controller,
+            focusNode: focusNode,
+            contentInsertionConfiguration: ContentInsertionConfiguration(
+              onContentInserted: (KeyboardInsertedContent content) {
+                final data = content.data;
+                if (data == null) return;
+                final file = MatrixFile(
+                  mimeType: content.mimeType,
+                  bytes: data,
+                  name: 'content-insertion',
+                );
+                room.sendFileEvent(file, shrinkImageMaxDimension: 1600);
+              },
+            ),
             minLines: minLines,
             maxLines: maxLines,
             keyboardType: keyboardType!,
@@ -461,9 +477,7 @@ class InputBar extends StatelessWidget {
               // it sets the types for the callback incorrectly
               onSubmitted!(text);
             },
-            controller: controller,
             decoration: decoration!,
-            focusNode: focusNode,
             onChanged: (text) {
               // fix for the library for now
               // it sets the types for the callback incorrectly
@@ -474,13 +488,13 @@ class InputBar extends StatelessWidget {
           suggestionsCallback: getSuggestions,
           itemBuilder: (c, s) =>
               buildSuggestion(c, s, Matrix.of(context).client),
-          onSuggestionSelected: (Map<String, String?> suggestion) =>
+          onSelected: (Map<String, String?> suggestion) =>
               insertSuggestion(context, suggestion),
           errorBuilder: (BuildContext context, Object? error) =>
               const SizedBox.shrink(),
           loadingBuilder: (BuildContext context) => const SizedBox.shrink(),
           // fix loading briefly flickering a dark box
-          noItemsFoundBuilder: (BuildContext context) => const SizedBox
+          emptyBuilder: (BuildContext context) => const SizedBox
               .shrink(), // fix loading briefly showing no suggestions
         ),
       ),

lib/pages/homeserver_picker/homeserver_app_bar.dart

@@ -18,13 +18,17 @@ class HomeserverAppBar extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return TypeAheadField<PublicHomeserver>(
-      suggestionsBoxDecoration: SuggestionsBoxDecoration(
-        borderRadius: BorderRadius.circular(AppConfig.borderRadius),
-        elevation: Theme.of(context).appBarTheme.scrolledUnderElevation ?? 4,
-        shadowColor: Theme.of(context).appBarTheme.shadowColor ?? Colors.black,
+      decorationBuilder: (context, child) => ConstrainedBox(
         constraints: const BoxConstraints(maxHeight: 256),
+        child: Material(
+          borderRadius: BorderRadius.circular(AppConfig.borderRadius),
+          elevation: Theme.of(context).appBarTheme.scrolledUnderElevation ?? 4,
+          shadowColor:
+              Theme.of(context).appBarTheme.shadowColor ?? Colors.black,
+          child: child,
+        ),
       ),
-      noItemsFoundBuilder: (context) => ListTile(
+      emptyBuilder: (context) => ListTile(
         leading: const Icon(Icons.search_outlined),
         title: Text(L10n.of(context)!.nothingFound),
       ),
@@ -35,8 +39,7 @@ class HomeserverAppBar extends StatelessWidget {
       errorBuilder: (context, error) => ListTile(
         leading: const Icon(Icons.error_outlined),
         title: Text(
-          error?.toLocalizedString(context) ??
-              L10n.of(context)!.oopsSomethingWentWrong,
+          error.toLocalizedString(context),
         ),
       ),
       itemBuilder: (context, homeserver) => ListTile(
@@ -72,13 +75,15 @@ class HomeserverAppBar extends StatelessWidget {
         }
         return matches;
       },
-      onSuggestionSelected: (suggestion) {
+      onSelected: (suggestion) {
         controller.homeserverController.text = suggestion.name;
         controller.checkHomeserverAction();
       },
-      textFieldConfiguration: TextFieldConfiguration(
+      controller: controller.homeserverController,
+      builder: (context, textEditingController, focusNode) => TextField(
         enabled: !controller.isLoggingIn,
-        controller: controller.homeserverController,
+        controller: textEditingController,
+        focusNode: focusNode,
         decoration: InputDecoration(
           prefixIcon: Navigator.of(context).canPop()
               ? IconButton(