Merge branch 'master' of https://github.com/rustdesk/rustdesk

flutter/lib/models/input_model.dart

@@ -466,15 +466,21 @@ class InputModel {
     evt['y'] = '${y.round()}';
     var buttons = '';
     switch (evt['buttons']) {
-      case 1:
+      case kPrimaryMouseButton:
         buttons = 'left';
         break;
-      case 2:
+      case kSecondaryMouseButton:
         buttons = 'right';
         break;
-      case 4:
+      case kMiddleMouseButton:
         buttons = 'wheel';
         break;
+      case kBackMouseButton:
+        buttons = 'back';
+        break;
+      case kForwardMouseButton:
+        buttons = 'forward';
+        break;
     }
     evt['buttons'] = buttons;
     bind.sessionSendMouse(id: id, msg: json.encode(evt));

flutter/lib/models/model.dart

@@ -22,6 +22,7 @@ import 'package:tuple/tuple.dart';
 import 'package:image/image.dart' as img2;
 import 'package:flutter_custom_cursor/cursor_manager.dart';
 import 'package:flutter_svg/flutter_svg.dart';
+import 'package:get/get.dart';
 
 import '../common.dart';
 import '../common/shared_state.dart';
@@ -528,6 +529,7 @@ class CanvasModel with ChangeNotifier {
   double _y = 0;
   // image scale
   double _scale = 1.0;
+  Size _size = Size.zero;
   // the tabbar over the image
   // double tabBarHeight = 0.0;
   // the window border's width
@@ -541,6 +543,8 @@ class CanvasModel with ChangeNotifier {
   ScrollStyle _scrollStyle = ScrollStyle.scrollauto;
   ViewStyle _lastViewStyle = ViewStyle();
 
+  final _imageOverflow = false.obs;
+
   WeakReference<FFI> parent;
 
   CanvasModel(this.parent);
@@ -548,8 +552,10 @@ class CanvasModel with ChangeNotifier {
   double get x => _x;
   double get y => _y;
   double get scale => _scale;
+  Size get size => _size;
   ScrollStyle get scrollStyle => _scrollStyle;
   ViewStyle get viewStyle => _lastViewStyle;
+  RxBool get imageOverflow => _imageOverflow;
 
   _resetScroll() => setScrollPercent(0.0, 0.0);
 
@@ -562,18 +568,26 @@ class CanvasModel with ChangeNotifier {
   double get scrollY => _scrollY;
 
   updateViewStyle() async {
+    Size getSize() {
+      final size = MediaQueryData.fromWindow(ui.window).size;
+      // If minimized, w or h may be negative here.
+      double w = size.width - windowBorderWidth * 2;
+      double h = size.height - tabBarHeight - windowBorderWidth * 2;
+      return Size(w < 0 ? 0 : w, h < 0 ? 0 : h);
+    }
+
     final style = await bind.sessionGetViewStyle(id: id);
     if (style == null) {
       return;
     }
-    final sizeWidth = size.width;
-    final sizeHeight = size.height;
+
+    _size = getSize();
     final displayWidth = getDisplayWidth();
     final displayHeight = getDisplayHeight();
     final viewStyle = ViewStyle(
       style: style,
-      width: sizeWidth,
-      height: sizeHeight,
+      width: size.width,
+      height: size.height,
       displayWidth: displayWidth,
       displayHeight: displayHeight,
     );
@@ -585,8 +599,13 @@ class CanvasModel with ChangeNotifier {
     }
     _lastViewStyle = viewStyle;
     _scale = viewStyle.scale;
-    _x = (sizeWidth - displayWidth * _scale) / 2;
-    _y = (sizeHeight - displayHeight * _scale) / 2;
+
+    if (kIgnoreDpi && style == kRemoteViewStyleOriginal) {
+      _scale = 1.0 / ui.window.devicePixelRatio;
+    }
+    _x = (size.width - displayWidth * _scale) / 2;
+    _y = (size.height - displayHeight * _scale) / 2;
+    _imageOverflow.value = _x < 0 || y < 0;
     notifyListeners();
   }
 
@@ -628,14 +647,6 @@ class CanvasModel with ChangeNotifier {
   double get windowBorderWidth => stateGlobal.windowBorderWidth.value;
   double get tabBarHeight => stateGlobal.tabBarHeight;
 
-  Size get size {
-    final size = MediaQueryData.fromWindow(ui.window).size;
-    // If minimized, w or h may be negative here.
-    double w = size.width - windowBorderWidth * 2;
-    double h = size.height - tabBarHeight - windowBorderWidth * 2;
-    return Size(w < 0 ? 0 : w, h < 0 ? 0 : h);
-  }
-
   moveDesktopMouse(double x, double y) {
     // On mobile platforms, move the canvas with the cursor.
     final dw = getDisplayWidth() * _scale;