Add setContentSize feature to Window (asticode#344)

Fixes asticode#343

astilectron.go

@@ -13,7 +13,7 @@ import (
 // Versions
 const (
 	DefaultAcceptTCPTimeout   = 30 * time.Second
-	DefaultVersionAstilectron = "0.49.0"
+	DefaultVersionAstilectron = "0.51.0"
 	DefaultVersionElectron    = "11.4.3"
 )
 

window.go

@@ -28,6 +28,7 @@ const (
 	EventNameWindowCmdMinimize                        = "window.cmd.minimize"
 	EventNameWindowCmdMove                            = "window.cmd.move"
 	EventNameWindowCmdResize                          = "window.cmd.resize"
+	EventNameWindowCmdResizeContent                   = "window.cmd.resize.content"
 	EventNameWindowCmdSetBounds                       = "window.cmd.set.bounds"
 	EventNameWindowCmdRestore                         = "window.cmd.restore"
 	EventNameWindowCmdSetContentProtection            = "window.cmd.set.content.protection"
@@ -50,6 +51,7 @@ const (
 	EventNameWindowEventMove                          = "window.event.move"
 	EventNameWindowEventReadyToShow                   = "window.event.ready.to.show"
 	EventNameWindowEventResize                        = "window.event.resize"
+	EventNameWindowEventResizeContent                 = "window.event.resize.content"
 	EventNameWindowEventRestore                       = "window.event.restore"
 	EventNameWindowEventShow                          = "window.event.show"
 	EventNameWindowEventUnmaximize                    = "window.event.unmaximize"
@@ -470,6 +472,19 @@ func (w *Window) Resize(width, height int) (err error) {
 	return
 }
 
+// ResizeContent resizes the content viewport
+func (w *Window) ResizeContent(width, height int) (err error) {
+	if err = w.ctx.Err(); err != nil {
+		return
+	}
+	w.m.Lock()
+	w.o.Height = astikit.IntPtr(height)
+	w.o.Width = astikit.IntPtr(width)
+	w.m.Unlock()
+	_, err = synchronousEvent(w.ctx, w, w.w, Event{Name: EventNameWindowCmdResizeContent, TargetID: w.id, WindowOptions: &WindowOptions{Height: astikit.IntPtr(height), Width: astikit.IntPtr(width)}}, EventNameWindowEventResizeContent)
+	return
+}
+
 // SetBounds set bounds of the window
 func (w *Window) SetBounds(r RectangleOptions) (err error) {
 	if err = w.ctx.Err(); err != nil {

window_test.go

@@ -65,6 +65,7 @@ func TestWindow_Actions(t *testing.T) {
 	var d = newDisplay(&DisplayOptions{Bounds: &RectangleOptions{PositionOptions: PositionOptions{X: astikit.IntPtr(1), Y: astikit.IntPtr(2)}, SizeOptions: SizeOptions{Height: astikit.IntPtr(1), Width: astikit.IntPtr(2)}}}, true)
 	testObjectAction(t, func() error { return w.MoveInDisplay(d, 3, 4) }, w.object, wrt, "{\"name\":\""+EventNameWindowCmdMove+"\",\"targetID\":\""+w.id+"\",\"windowOptions\":{\"x\":4,\"y\":6}}\n", EventNameWindowEventMove)
 	testObjectAction(t, func() error { return w.Resize(1, 2) }, w.object, wrt, "{\"name\":\""+EventNameWindowCmdResize+"\",\"targetID\":\""+w.id+"\",\"windowOptions\":{\"height\":2,\"width\":1}}\n", EventNameWindowEventResize)
+	testObjectAction(t, func() error { return w.ResizeContent(1, 2) }, w.object, wrt, "{\"name\":\""+EventNameWindowCmdResizeContent+"\",\"targetID\":\""+w.id+"\",\"windowOptions\":{\"height\":2,\"width\":1}}\n", EventNameWindowEventResizeContent)
 	testObjectAction(t, func() error { return w.Restore() }, w.object, wrt, "{\"name\":\""+EventNameWindowCmdRestore+"\",\"targetID\":\""+w.id+"\"}\n", EventNameWindowEventRestore)
 	testObjectAction(t, func() error { return w.Show() }, w.object, wrt, "{\"name\":\""+EventNameWindowCmdShow+"\",\"targetID\":\""+w.id+"\"}\n", EventNameWindowEventShow)
 	assert.Equal(t, true, w.IsShown())