feat: paste image from clipboard

lib/pages/chat/chat.dart

@@ -464,6 +464,22 @@ class ChatController extends State<ChatPageWithRoom> {
     );
   }
 
+  void sendImageFromClipBoard(Uint8List? image) async {
+    await showDialog(
+      context: context,
+      useRootNavigator: false,
+      builder: (c) => SendFileDialog(
+        files: [
+          MatrixFile(
+            bytes: image!,
+            name: "image from Clipboard",
+          ).detectFileType,
+        ],
+        room: room,
+      ),
+    );
+  }
+
   void sendImageAction() async {
     final result = await FilePicker.platform.pickFiles(
       type: FileType.image,

lib/pages/chat/chat_input_row.dart

@@ -235,6 +235,7 @@ class ChatInputRow extends StatelessWidget {
                     textInputAction:
                         AppConfig.sendOnEnter ? TextInputAction.send : null,
                     onSubmitted: controller.onInputBarSubmitted,
+                    onSubmitImage: controller.sendImageFromClipBoard,
                     focusNode: controller.inputFocus,
                     controller: controller.sendController,
                     decoration: InputDecoration(

lib/pages/chat/input_bar.dart

@@ -5,6 +5,7 @@ import 'package:emojis/emoji.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
 import 'package:flutter_typeahead/flutter_typeahead.dart';
 import 'package:matrix/matrix.dart';
+import 'package:pasteboard/pasteboard.dart';
 import 'package:slugify/slugify.dart';
 
 import 'package:fluffychat/config/app_config.dart';
@@ -21,6 +22,7 @@ class InputBar extends StatelessWidget {
   final TextInputType? keyboardType;
   final TextInputAction? textInputAction;
   final ValueChanged<String>? onSubmitted;
+  final ValueChanged<Uint8List?>? onSubmitImage;
   final FocusNode? focusNode;
   final TextEditingController? controller;
   final InputDecoration? decoration;
@@ -34,6 +36,7 @@ class InputBar extends StatelessWidget {
     this.maxLines,
     this.keyboardType,
     this.onSubmitted,
+    this.onSubmitImage,
     this.focusNode,
     this.controller,
     this.decoration,
@@ -401,6 +404,10 @@ class InputBar extends StatelessWidget {
               LogicalKeySet(LogicalKeyboardKey.shift, LogicalKeyboardKey.enter):
                   NewLineIntent(),
               LogicalKeySet(LogicalKeyboardKey.enter): SubmitLineIntent(),
+              LogicalKeySet(
+                LogicalKeyboardKey.controlLeft,
+                LogicalKeyboardKey.keyM,
+              ): PasteLineIntent()
             },
       child: Actions(
         actions: !useShortCuts
@@ -427,6 +434,16 @@ class InputBar extends StatelessWidget {
                     return null;
                   },
                 ),
+                PasteLineIntent: CallbackAction(
+                  onInvoke: (i) async {
+                    final image = await Pasteboard.image;
+                    if (image != null) {
+                      onSubmitImage!(image);
+                      return null;
+                    }
+                    return null;
+                  },
+                )
               },
         child: TypeAheadField<Map<String, String?>>(
           direction: AxisDirection.up,
@@ -476,3 +493,5 @@ class InputBar extends StatelessWidget {
 class NewLineIntent extends Intent {}
 
 class SubmitLineIntent extends Intent {}
+
+class PasteLineIntent extends Intent {}