Generate video thumbnails

lib/ui/dialogs/pick_file_dialog.dart

@@ -77,8 +77,8 @@ Future<BytesFile> showPickFileDialog({
   @required BuildContext context,
   int maxFileSize,
   List<String> allowedMimeTypes,
-  double imageMaxWidth,
-  double imageMaxHeight,
+  int imageMaxWidth,
+  int imageMaxHeight,
 }) async {
   assert(allowedMimeTypes != null);
 
@@ -113,8 +113,8 @@ Future<BytesFile> showPickFileDialog({
         source: choice == _FileChoices.PICK_IMAGE
             ? ImageSource.gallery
             : ImageSource.camera,
-        maxWidth: imageMaxWidth,
-        maxHeight: imageMaxHeight,
+        maxWidth: imageMaxWidth.toDouble(),
+        maxHeight: imageMaxHeight.toDouble(),
       );
 
       if (image == null) return null;

lib/ui/screens/conversation_screen.dart

@@ -6,6 +6,7 @@ import 'package:comunic/helpers/server_config_helper.dart';
 import 'package:comunic/helpers/users_helper.dart';
 import 'package:comunic/lists/conversation_messages_list.dart';
 import 'package:comunic/lists/users_list.dart';
+import 'package:comunic/models/api_request.dart';
 import 'package:comunic/models/conversation.dart';
 import 'package:comunic/models/conversation_message.dart';
 import 'package:comunic/models/new_conversation_message.dart';
@@ -15,11 +16,14 @@ import 'package:comunic/ui/tiles/conversation_message_tile.dart';
 import 'package:comunic/ui/tiles/server_conversation_message_tile.dart';
 import 'package:comunic/ui/widgets/safe_state.dart';
 import 'package:comunic/ui/widgets/scroll_watcher.dart';
+import 'package:comunic/utils/files_utils.dart';
 import 'package:comunic/utils/intl_utils.dart';
 import 'package:comunic/utils/list_utils.dart';
 import 'package:comunic/utils/log_utils.dart';
 import 'package:comunic/utils/ui_utils.dart';
+import 'package:comunic/utils/video_utils.dart';
 import 'package:flutter/material.dart';
+import 'package:mime/mime.dart';
 
 /// Conversation screen
 ///
@@ -227,16 +231,23 @@ class _ConversationScreenState extends SafeState<ConversationScreen> {
         context: context,
         maxFileSize: srvConfig.conversationsPolicy.filesMaxSize,
         allowedMimeTypes: srvConfig.conversationsPolicy.allowedFilesType,
+        imageMaxWidth: srvConfig.conversationsPolicy.maxMessageImageWidth,
+        imageMaxHeight: srvConfig.conversationsPolicy.maxMessageImageHeight,
       );
 
       if (file == null) return;
 
+      BytesFile thumbnail;
+
+      if (isVideo(lookupMimeType(file.filename)))
+        thumbnail = await generateVideoThumbnail(videoFile: file);
+
       await _submitMessage(
         NewConversationMessage(
-          conversationID: widget.conversationID,
-          message: null,
-          file: file,
-        ),
+            conversationID: widget.conversationID,
+            message: null,
+            file: file,
+            thumbnail: thumbnail),
       );
     } catch (e, s) {
       logError(e, s);

lib/ui/tiles/conversation_message_tile.dart

@@ -90,7 +90,9 @@ class ConversationMessageTile extends StatelessWidget {
 
           // Update message content
           PopupMenuItem(
-            enabled: message.isOwner,
+            enabled: message.isOwner &&
+                message.message != null &&
+                message.message.content.isNotEmpty,
             value: _MenuChoices.REQUEST_UPDATE_CONTENT,
             child: Text(tr("Update")),
           ),