Fix position runtime (#1123)

* [linux] Move SetTitle and startDrag to main thread

* [linux] Move SetPosition, Center, Fullscreen and UnFullscreen to main thread

* Fix runtime Window Get/Set Position signatures

* Fix vanilla template keyboard handling

v2/cmd/wails/internal/commands/initialise/templates/templates/vanilla/frontend/src/main.js

@@ -16,8 +16,7 @@ window.greet = function () {
 };
 
 nameElement.onkeydown = function (e) {
-  console.log(e)
+  if (e.code === "Enter") {
-  if (e.keyCode == 13) {
+    window.greet();
-    window.greet()
   }
-}
+};

v2/internal/frontend/desktop/darwin/Application.h

@@ -39,7 +39,7 @@ void ExecJS(void* ctx, const char*);
 void Quit(void*);
 
 const char* GetSize(void *ctx);
-const char* GetPos(void *ctx);
+const char* GetPosition(void *ctx);
 
 void ProcessURLResponse(void *inctx, const char *url, int statusCode, const char *contentType, void* data, int datalength);
 

v2/internal/frontend/desktop/darwin/Application.m

@@ -163,7 +163,7 @@ const char* GetSize(void *inctx) {
     return [result UTF8String];
 }
 
-const char* GetPos(void *inctx) {
+const char* GetPosition(void *inctx) {
     WailsContext *ctx = (__bridge WailsContext*) inctx;
     NSScreen* screen = [ctx getCurrentScreen];
     NSRect windowFrame = [ctx.mainWindow frame];

v2/internal/frontend/desktop/darwin/frontend.go

@@ -144,11 +144,11 @@ func (f *Frontend) WindowCenter() {
 	f.mainWindow.Center()
 }
 
-func (f *Frontend) WindowSetPos(x, y int) {
+func (f *Frontend) WindowSetPosition(x, y int) {
-	f.mainWindow.SetPos(x, y)
+	f.mainWindow.SetPosition(x, y)
 }
-func (f *Frontend) WindowGetPos() (int, int) {
+func (f *Frontend) WindowGetPosition() (int, int) {
-	return f.mainWindow.Pos()
+	return f.mainWindow.GetPosition()
 }
 
 func (f *Frontend) WindowSetSize(width, height int) {

v2/internal/frontend/desktop/darwin/window.go

@@ -137,7 +137,7 @@ func (w *Window) ExecJS(js string) {
 	C.free(unsafe.Pointer(_js))
 }
 
-func (w *Window) SetPos(x int, y int) {
+func (w *Window) SetPosition(x int, y int) {
 	C.SetPosition(w.context, C.int(x), C.int(y))
 }
 
@@ -204,8 +204,8 @@ func parseIntDuo(temp string) (int, int) {
 	return x, y
 }
 
-func (w *Window) Pos() (int, int) {
+func (w *Window) GetPosition() (int, int) {
-	var _result *C.char = C.GetPos(w.context)
+	var _result *C.char = C.GetPosition(w.context)
 	temp := C.GoString(_result)
 	return parseIntDuo(temp)
 }

v2/internal/frontend/desktop/linux/frontend.go

@@ -137,11 +137,11 @@ func (f *Frontend) WindowCenter() {
 	f.mainWindow.Center()
 }
 
-func (f *Frontend) WindowSetPos(x, y int) {
+func (f *Frontend) WindowSetPosition(x, y int) {
-	f.mainWindow.SetPos(x, y)
+	f.mainWindow.SetPosition(x, y)
 }
-func (f *Frontend) WindowGetPos() (int, int) {
+func (f *Frontend) WindowGetPosition() (int, int) {
-	return f.mainWindow.Pos()
+	return f.mainWindow.GetPosition()
 }
 
 func (f *Frontend) WindowSetSize(width, height int) {

v2/internal/frontend/desktop/linux/window.go

@@ -11,6 +11,11 @@ package linux
 #include <stdio.h>
 #include <limits.h>
 
+
+void ExecuteOnMainThread(void* f, gpointer jscallback) {
+    g_idle_add((GSourceFunc)f, (gpointer)jscallback);
+}
+
 static GtkWidget* GTKWIDGET(void *pointer) {
 	return GTK_WIDGET(pointer);
 }
@@ -60,13 +65,10 @@ GdkRectangle getCurrentMonitorGeometry(GtkWindow *window) {
     return result;
 }
 
-void SetPosition(GtkWindow *window, int x, int y) {
+void Center(gpointer data)
-	GdkRectangle monitorDimensions = getCurrentMonitorGeometry(window);
-	gtk_window_move(window, monitorDimensions.x + x, monitorDimensions.y + y);
-}
-
-void Center(GtkWindow *window)
 {
+	GtkWindow *window = (GtkWindow*)data;
+
     // Get the geometry of the monitor
     GdkRectangle m = getCurrentMonitorGeometry(window);
 
@@ -183,13 +185,28 @@ void loadIndex(void* webview) {
 	webkit_web_view_load_uri(WEBKIT_WEB_VIEW(webview), "wails:///");
 }
 
-static void startDrag(void *webview, GtkWindow* mainwindow)
+typedef struct DragOptions {
-{
+	void *webview;
-    // Ignore non-toplevel widgets
+	GtkWindow* mainwindow;
-    GtkWidget *window = gtk_widget_get_toplevel(GTK_WIDGET(webview));
+} DragOptions;
-    if (!GTK_IS_WINDOW(window)) return;
 
-    gtk_window_begin_move_drag(mainwindow, 1, xroot, yroot, dragTime);
+static void startDrag(gpointer data)
+{
+	DragOptions* options = (DragOptions*)data;
+
+   // Ignore non-toplevel widgets
+   GtkWidget *window = gtk_widget_get_toplevel(GTK_WIDGET(options->webview));
+   if (!GTK_IS_WINDOW(window)) return;
+
+   gtk_window_begin_move_drag(options->mainwindow, 1, xroot, yroot, dragTime);
+	free(data);
+}
+
+static void StartDrag(void *webview, GtkWindow* mainwindow) {
+	DragOptions* data = malloc(sizeof(DragOptions));
+	data->webview = webview;
+	data->mainwindow = mainwindow;
+	ExecuteOnMainThread(startDrag, (gpointer)data);
 }
 
 typedef struct JSCallback {
@@ -204,10 +221,6 @@ int executeJS(gpointer data) {
     return G_SOURCE_REMOVE;
 }
 
-void ExecuteOnMainThread(void* f, gpointer jscallback) {
-    g_idle_add((GSourceFunc)f, (gpointer)jscallback);
-}
-
 void extern processMessageDialogResult(char*);
 
 typedef struct MessageDialogOptions {
@@ -393,6 +406,48 @@ void setRGBA(gpointer* data) {
 	GdkRGBA colour = {options->r / 255.0, options->g / 255.0, options->b / 255.0, options->a / 255.0};
 	webkit_web_view_set_background_color(WEBKIT_WEB_VIEW(options->webview), &colour);
 }
+
+typedef struct SetTitleArgs {
+	GtkWindow* window;
+	char* title;
+} SetTitleArgs;
+
+void setTitle(gpointer data) {
+	SetTitleArgs* args = (SetTitleArgs*)data;
+	gtk_window_set_title(args->window, args->title);
+	free((void*)args->title);
+	free((void*)data);
+}
+
+void SetTitle(GtkWindow* window, char* title) {
+	SetTitleArgs* args = malloc(sizeof(SetTitleArgs));
+	args->window = window;
+	args->title = title;
+	ExecuteOnMainThread(setTitle, (gpointer)args);
+}
+
+typedef struct SetPositionArgs {
+	int x;
+	int y;
+	void* window;
+} SetPositionArgs;
+
+void setPosition(gpointer data) {
+	SetPositionArgs* args = (SetPositionArgs*)data;
+	gtk_window_move((GtkWindow*)args->window, args->x, args->y);
+	free(args);
+}
+
+void SetPosition(void* window, int x, int y) {
+	GdkRectangle monitorDimensions = getCurrentMonitorGeometry(window);
+	SetPositionArgs* args = malloc(sizeof(SetPositionArgs));
+	args->window = window;
+	args->x = monitorDimensions.x + x;
+	args->y = monitorDimensions.y + y;
+	ExecuteOnMainThread(setPosition, (gpointer)args);
+}
+
+
 */
 import "C"
 import (
@@ -495,11 +550,11 @@ func (w *Window) cWebKitUserContentManager() *C.WebKitUserContentManager {
 }
 
 func (w *Window) Fullscreen() {
-	C.gtk_window_fullscreen(w.asGTKWindow())
+	C.ExecuteOnMainThread(C.gtk_window_fullscreen, C.gpointer(w.asGTKWindow()))
 }
 
 func (w *Window) UnFullscreen() {
-	C.gtk_window_unfullscreen(w.asGTKWindow())
+	C.ExecuteOnMainThread(C.gtk_window_unfullscreen, C.gpointer(w.asGTKWindow()))
 }
 
 func (w *Window) Destroy() {
@@ -512,13 +567,11 @@ func (w *Window) Close() {
 }
 
 func (w *Window) Center() {
-	C.Center(w.asGTKWindow())
+	C.ExecuteOnMainThread(C.Center, C.gpointer(w.asGTKWindow()))
 }
 
-func (w *Window) SetPos(x int, y int) {
+func (w *Window) SetPosition(x int, y int) {
-	cX := C.int(x)
+	C.SetPosition(unsafe.Pointer(w.asGTKWindow()), C.int(x), C.int(y))
-	cY := C.int(y)
-	C.gtk_window_move(w.asGTKWindow(), cX, cY)
 }
 
 func (w *Window) Size() (int, int) {
@@ -527,7 +580,7 @@ func (w *Window) Size() (int, int) {
 	return int(width), int(height)
 }
 
-func (w *Window) Pos() (int, int) {
+func (w *Window) GetPosition() (int, int) {
 	var width, height C.int
 	C.gtk_window_get_position(w.asGTKWindow(), &width, &height)
 	return int(width), int(height)
@@ -621,9 +674,7 @@ func (w *Window) SetDecorated(frameless bool) {
 }
 
 func (w *Window) SetTitle(title string) {
-	cTitle := C.CString(title)
+	C.SetTitle(w.asGTKWindow(), C.CString(title))
-	defer C.free(unsafe.Pointer(cTitle))
-	C.gtk_window_set_title(w.asGTKWindow(), cTitle)
 }
 
 func (w *Window) ExecJS(js string) {
@@ -635,7 +686,7 @@ func (w *Window) ExecJS(js string) {
 }
 
 func (w *Window) StartDrag() {
-	C.startDrag(w.webview, w.asGTKWindow())
+	C.StartDrag(w.webview, w.asGTKWindow())
 }
 
 func (w *Window) Quit() {

v2/internal/frontend/desktop/windows/frontend.go

@@ -145,13 +145,13 @@ func (f *Frontend) WindowCenter() {
 	f.mainWindow.Center()
 }
 
-func (f *Frontend) WindowSetPos(x, y int) {
+func (f *Frontend) WindowSetPosition(x, y int) {
 	runtime.LockOSThread()
-	f.mainWindow.SetPos(x, y)
+	f.mainWindow.SetPosition(x, y)
 }
-func (f *Frontend) WindowGetPos() (int, int) {
+func (f *Frontend) WindowGetPosition() (int, int) {
 	runtime.LockOSThread()
-	return f.mainWindow.Pos()
+	return f.mainWindow.GetPosition()
 }
 
 func (f *Frontend) WindowSetSize(width, height int) {

v2/internal/frontend/devserver/devserver.go

@@ -199,12 +199,12 @@ func (d *DevWebServer) WindowUnminimise() {
 	d.desktopFrontend.WindowUnminimise()
 }
 
-func (d *DevWebServer) WindowSetPos(x int, y int) {
+func (d *DevWebServer) WindowSetPosition(x int, y int) {
-	d.desktopFrontend.WindowSetPos(x, y)
+	d.desktopFrontend.WindowSetPosition(x, y)
 }
 
-func (d *DevWebServer) WindowGetPos() (int, int) {
+func (d *DevWebServer) WindowGetPosition() (int, int) {
-	return d.desktopFrontend.WindowGetPos()
+	return d.desktopFrontend.WindowGetPosition()
 }
 
 func (d *DevWebServer) WindowSetSize(width int, height int) {

v2/internal/frontend/dispatcher/systemcalls.go

@@ -26,7 +26,7 @@ func (d *Dispatcher) processSystemCall(payload callMessage, sender frontend.Fron
 
 	switch name {
 	case "WindowGetPos":
-		x, y := sender.WindowGetPos()
+		x, y := sender.WindowGetPosition()
 		return &position{x, y}, nil
 	case "WindowGetSize":
 		w, h := sender.WindowGetSize()

v2/internal/frontend/dispatcher/window.go

@@ -41,7 +41,7 @@ func (d *Dispatcher) processWindowMessage(message string, sender frontend.Fronte
 		parts := strings.Split(message[3:], ":")
 		x := d.mustAtoI(parts[0])
 		y := d.mustAtoI(parts[1])
-		go sender.WindowSetPos(x, y)
+		go sender.WindowSetPosition(x, y)
 	case 'H':
 		go sender.WindowHide()
 	case 'S':

v2/internal/frontend/frontend.go

@@ -76,8 +76,8 @@ type Frontend interface {
 	WindowUnmaximise()
 	WindowMinimise()
 	WindowUnminimise()
-	WindowSetPos(x int, y int)
+	WindowSetPosition(x int, y int)
-	WindowGetPos() (int, int)
+	WindowGetPosition() (int, int)
 	WindowSetSize(width int, height int)
 	WindowGetSize() (int, int)
 	WindowSetMinSize(width int, height int)

v2/pkg/runtime/window.go

@@ -74,12 +74,12 @@ func WindowSetMaxSize(ctx context.Context, width int, height int) {
 // WindowSetPosition sets the position of the window
 func WindowSetPosition(ctx context.Context, x int, y int) {
 	appFrontend := getFrontend(ctx)
-	appFrontend.WindowSetPos(x, y)
+	appFrontend.WindowSetPosition(x, y)
 }
 
-func WindowGetPos(ctx context.Context) (int, int) {
+func WindowGetPosition(ctx context.Context) (int, int) {
 	appFrontend := getFrontend(ctx)
-	return appFrontend.WindowGetPos()
+	return appFrontend.WindowGetPosition()
 }
 
 // WindowMaximise the window