Fix resize on windows

v3/examples/menu/main.go

@@ -102,7 +102,7 @@ func main() {
 	})
 	app.SetMenu(menu)
 
-	app.NewWebviewWindow()
+	app.NewWebviewWindow().SetBackgroundColour(application.NewRGB(33, 37, 41))
 
 	err := app.Run()
 

v3/internal/runtime/desktop/drag.js

@@ -40,6 +40,11 @@ export function setupDrag() {
 }
 
 let resizeEdge = null;
+let resizable = false;
+
+export function setResizable(value) {
+    resizable = value;
+}
 
 function testResize(e) {
     if( resizeEdge ) {
@@ -96,7 +101,9 @@ function onMouseMove(e) {
     }
 
     if (WINDOWS) {
-        handleResize(e);
+        if (resizable) {
+            handleResize(e);
+        }
     }
 }
 

v3/internal/runtime/desktop/main.js

@@ -22,7 +22,7 @@ import {dispatchWailsEvent, Emit, Off, OffAll, On, Once, OnMultiple} from "./eve
 import {dialogCallback, dialogErrorCallback, Error, Info, OpenFile, Question, SaveFile, Warning,} from "./dialogs";
 import {setupContextMenus} from "./contextmenu";
 import {reloadWML} from "./wml";
-import {setupDrag, endDrag} from "./drag";
+import {setupDrag, endDrag, setResizable} from "./drag";
 
 window.wails = {
     ...newRuntime(null),
@@ -44,6 +44,7 @@ window._wails = {
     callCallback,
     callErrorCallback,
     endDrag,
+    setResizable,
 };
 
 export function newRuntime(windowName) {

v3/pkg/application/webview_window_windows.go

@@ -136,6 +136,7 @@ func (w *windowsWebviewWindow) setURL(url string) {
 
 func (w *windowsWebviewWindow) setResizable(resizable bool) {
 	w.setStyle(resizable, w32.WS_THICKFRAME)
+	w.execJS(fmt.Sprintf("window._wails.setResizable(%v);", resizable))
 }
 
 func (w *windowsWebviewWindow) setMinSize(width, height int) {