Optimisation

CHANGELOG.md

@@ -7,7 +7,7 @@
 * Changed Push and Pop method of StackLayout interface.
 * Removed DefaultAnimation, StartToEndAnimation, EndToStartAnimation, TopDownAnimation, and BottomUpAnimation constants.
 * Added "push-transform", "push-duration", "push-timing", and "move-to-front-animation" properties.
-* Added GetPushDuration, GetPushTiming, and IsMoveToFrontAnimation functions.
+* Added GetPushTransform, GetPushDuration, GetPushTiming, and IsMoveToFrontAnimation functions.
 * Added LineJoin type. Type of constants MiterJoin, RoundJoin, and BevelJoin changed to LineJoin. Type of Canvas.SetLineJoin function argument changed to LineJoin.
 * Added LineCap type. Type of constants ButtCap, RoundCap, and SquareCap changed to LineCap. Type of Canvas.SetLineCap function argument changed to LineCap.
 

animation.go

@@ -981,11 +981,7 @@ func IsAnimationPaused(view View, subviewID ...string) bool {
 // GetTransitions returns the subview transitions. The result is always non-nil.
 // If the second argument (subviewID) is not specified or it is "" then transitions of the first argument (view) is returned
 func GetTransitions(view View, subviewID ...string) map[PropertyName]Animation {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-
-	if view != nil {
 		return view.Transitions()
 	}
 
@@ -1025,11 +1021,7 @@ func AddTransition(view View, subviewID string, tag PropertyName, animation Anim
 // GetAnimation returns the subview animations. The result is always non-nil.
 // If the second argument (subviewID) is not specified or it is "" then transitions of the first argument (view) is returned
 func GetAnimation(view View, subviewID ...string) []Animation {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-
-	if view != nil {
 		if value := view.getRaw(AnimationTag); value != nil {
 			if animations, ok := value.([]Animation); ok && animations != nil {
 				return animations

colorPicker.go

@@ -174,10 +174,7 @@ func (picker *colorPickerData) handleCommand(self View, command PropertyName, da
 // GetColorPickerValue returns the value of ColorPicker subview.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetColorPickerValue(view View, subviewID ...string) Color {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		if value, ok := colorProperty(view, ColorPickerValue, view.Session()); ok {
 			return value
 		}

columnLayout.go

@@ -199,11 +199,7 @@ func GetColumnGap(view View, subviewID ...string) SizeUnit {
 }
 
 func getColumnSeparator(view View, subviewID []string) ViewBorder {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-
-	if view != nil {
 		value := view.Get(ColumnSeparator)
 		if value == nil {
 			value = valueFromStyle(view, ColumnSeparator)

dataList.go

@@ -322,83 +322,10 @@ func dataListHtmlProperties(view View, buffer *strings.Builder) {
 	}
 }
 
-/*
-func (list *dataList) setDataList(view View, value any, created bool) bool {
-	items, ok := anyToStringArray(value)
-	if !ok {
-		notCompatibleType(DataList, value)
-		return false
-	}
-
-	list.dataList = items
-	if created {
-		session := view.Session()
-		dataListID := dataListID(view)
-		buffer := allocStringBuilder()
-		defer freeStringBuilder(buffer)
-
-		if list.dataListHtml {
-			list.dataListItemsHtml(buffer)
-			session.updateInnerHTML(dataListID, buffer.String())
-		} else {
-			list.dataListHtmlCode(view, buffer)
-			session.appendToInnerHTML(view.parentHTMLID(), buffer.String())
-			list.dataListHtml = true
-			session.updateProperty(view.htmlID(), "list", dataListID)
-		}
-	}
-
-	return true
-}
-
-func (list *dataList) dataListHtmlSubviews(view View, buffer *strings.Builder) {
-	if len(list.dataList) > 0 {
-		list.dataListHtmlCode(view, buffer)
-		list.dataListHtml = true
-	} else {
-		list.dataListHtml = false
-	}
-}
-
-func (list *dataList) dataListHtmlCode(view View, buffer *strings.Builder) {
-	buffer.WriteString(`<datalist id="`)
-	buffer.WriteString(dataListID(view))
-	buffer.WriteString(`">`)
-	list.dataListItemsHtml(buffer)
-	buffer.WriteString(`</datalist>`)
-}
-
-func (list *dataList) dataListItemsHtml(buffer *strings.Builder) {
-	for _, text := range list.dataList {
-		if strings.ContainsRune(text, '"') {
-			text = strings.ReplaceAll(text, `"`, `&#34;`)
-		}
-		if strings.ContainsRune(text, '\n') {
-			text = strings.ReplaceAll(text, "\n", `\n`)
-		}
-		buffer.WriteString(`<option value="`)
-		buffer.WriteString(text)
-		buffer.WriteString(`"></option>`)
-	}
-}
-
-func (list *dataList) dataListHtmlProperties(view View, buffer *strings.Builder) {
-	if len(list.dataList) > 0 {
-		buffer.WriteString(` list="`)
-		buffer.WriteString(dataListID(view))
-		buffer.WriteString(`"`)
-	}
-}
-*/
-
 // GetDataList returns the data list of an editor.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetDataList(view View, subviewID ...string) []string {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-
-	if view != nil {
 		return getDataListProperty(view)
 	}
 

datePicker.go

@@ -402,10 +402,7 @@ func getDateProperty(view View, mainTag, shortTag PropertyName) (time.Time, bool
 // "false" as the second value otherwise.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetDatePickerMin(view View, subviewID ...string) (time.Time, bool) {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		return getDateProperty(view, DatePickerMin, Min)
 	}
 	return time.Now(), false
@@ -415,10 +412,7 @@ func GetDatePickerMin(view View, subviewID ...string) (time.Time, bool) {
 // "false" as the second value otherwise.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetDatePickerMax(view View, subviewID ...string) (time.Time, bool) {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		return getDateProperty(view, DatePickerMax, Max)
 	}
 	return time.Now(), false
@@ -433,10 +427,7 @@ func GetDatePickerStep(view View, subviewID ...string) int {
 // GetDatePickerValue returns the date of DatePicker subview.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetDatePickerValue(view View, subviewID ...string) time.Time {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view == nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view == nil {
 		return time.Now()
 	}
 	date, _ := getDateProperty(view, DatePickerValue, Value)

detailsView.go

@@ -171,10 +171,7 @@ func (detailsView *detailsViewData) handleCommand(self View, command PropertyNam
 // GetDetailsSummary returns a value of the Summary property of DetailsView.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetDetailsSummary(view View, subviewID ...string) View {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		if value := view.Get(Summary); value != nil {
 			switch value := value.(type) {
 			case string:

dropDownList.go

@@ -267,10 +267,7 @@ func GetDropDownListeners(view View, subviewID ...string) []func(DropDownList, i
 // GetDropDownItems return the DropDownList items list.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetDropDownItems(view View, subviewID ...string) []string {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		if value := view.Get(Items); value != nil {
 			if items, ok := value.([]string); ok {
 				return items
@@ -313,19 +310,13 @@ func getIndicesArray(view View, tag PropertyName) []int {
 // GetDropDownDisabledItems return an array of disabled(non selectable) items indices of DropDownList.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetDropDownDisabledItems(view View, subviewID ...string) []int {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	view = getSubview(view, subviewID)
-		view = ViewByID(view, subviewID[0])
-	}
-
 	return getIndicesArray(view, DisabledItems)
 }
 
 // GetDropDownItemSeparators return an array of indices of DropDownList items after which a separator should be added.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetDropDownItemSeparators(view View, subviewID ...string) []int {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	view = getSubview(view, subviewID)
-		view = ViewByID(view, subviewID[0])
-	}
-
 	return getIndicesArray(view, ItemSeparators)
 }

editView.go

@@ -398,10 +398,7 @@ func (edit *editViewData) handleCommand(self View, command PropertyName, data Da
 // GetText returns a text of the EditView subview.
 // If the second argument (subviewID) is not specified or it is "" then a text of the first argument (view) is returned.
 func GetText(view View, subviewID ...string) string {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		if value := view.getRaw(Text); value != nil {
 			if text, ok := value.(string); ok {
 				return text
@@ -414,9 +411,7 @@ func GetText(view View, subviewID ...string) string {
 // GetHint returns a hint text of the subview.
 // If the second argument (subviewID) is not specified or it is "" then a text of the first argument (view) is returned.
 func GetHint(view View, subviewID ...string) string {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	view = getSubview(view, subviewID)
-		view = ViewByID(view, subviewID[0])
-	}
 
 	session := view.Session()
 	text := ""
@@ -477,10 +472,7 @@ func GetEditViewType(view View, subviewID ...string) int {
 // GetEditViewPattern returns a value of the Pattern property of EditView.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetEditViewPattern(view View, subviewID ...string) string {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		if pattern, ok := stringProperty(view, EditViewPattern, view.Session()); ok {
 			return pattern
 		}

events.go

@@ -411,10 +411,7 @@ func valueToTwoArgEventListeners[V View, E any](value any) ([]func(V, E, E), boo
 }
 
 func getNoArgEventListeners[V View](view View, subviewID []string, tag PropertyName) []func(V) {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		if value := view.Get(tag); value != nil {
 			if result, ok := value.([]func(V)); ok {
 				return result
@@ -425,10 +422,7 @@ func getNoArgEventListeners[V View](view View, subviewID []string, tag PropertyN
 }
 
 func getOneArgEventListeners[V View, E any](view View, subviewID []string, tag PropertyName) []func(V, E) {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		if value := view.Get(tag); value != nil {
 			if result, ok := value.([]func(V, E)); ok {
 				return result
@@ -439,10 +433,7 @@ func getOneArgEventListeners[V View, E any](view View, subviewID []string, tag P
 }
 
 func getTwoArgEventListeners[V View, E any](view View, subviewID []string, tag PropertyName) []func(V, E, E) {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		if value := view.Get(tag); value != nil {
 			if result, ok := value.([]func(V, E, E)); ok {
 				return result

filePicker.go

@@ -345,10 +345,7 @@ func IsMultipleFilePicker(view View, subviewID ...string) bool {
 // GetFilePickerAccept returns sets the list of allowed file extensions or MIME types.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetFilePickerAccept(view View, subviewID ...string) []string {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		accept, ok := stringProperty(view, Accept, view.Session())
 		if !ok {
 			if value := valueFromStyle(view, Accept); value != nil {

gridLayout.go

@@ -533,10 +533,7 @@ func GetGridAutoFlow(view View, subviewID ...string) int {
 // If the result is a single value array, then the width of all cell is equal.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetCellWidth(view View, subviewID ...string) []SizeUnit {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		return gridCellSizes(view, CellWidth, view.Session())
 	}
 	return []SizeUnit{}
@@ -546,10 +543,7 @@ func GetCellWidth(view View, subviewID ...string) []SizeUnit {
 // If the result is a single value array, then the height of all cell is equal.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetCellHeight(view View, subviewID ...string) []SizeUnit {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		return gridCellSizes(view, CellHeight, view.Session())
 	}
 	return []SizeUnit{}

imageView.go

@@ -329,11 +329,7 @@ func (imageView *imageViewData) CurrentSource() string {
 // GetImageViewSource returns the image URL of an ImageView subview.
 // If the second argument (subviewID) is not specified or it is "" then a left position of the first argument (view) is returned
 func GetImageViewSource(view View, subviewID ...string) string {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-
-	if view != nil {
 		if image, ok := imageProperty(view, Source, view.Session()); ok {
 			return image
 		}
@@ -345,11 +341,7 @@ func GetImageViewSource(view View, subviewID ...string) string {
 // GetImageViewAltText returns an alternative text description of an ImageView subview.
 // If the second argument (subviewID) is not specified or it is "" then a left position of the first argument (view) is returned
 func GetImageViewAltText(view View, subviewID ...string) string {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-
-	if view != nil {
 		if value := view.getRaw(AltText); value != nil {
 			if text, ok := value.(string); ok {
 				text, _ = view.Session().GetString(text)

listLayout.go

@@ -222,11 +222,7 @@ func GetListHorizontalAlign(view View, subviewID ...string) int {
 // TopDownOrientation (0), StartToEndOrientation (1), BottomUpOrientation (2), or EndToStartOrientation (3)
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetListOrientation(view View, subviewID ...string) int {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-
-	if view != nil {
 		if orientation, ok := valueToOrientation(view.Get(Orientation), view.Session()); ok {
 			return orientation
 		}
@@ -264,11 +260,7 @@ func GetListColumnGap(view View, subviewID ...string) SizeUnit {
 // otherwise does nothing.
 // If the second argument (subviewID) is not specified or it is "" then the first argument (view) updates.
 func UpdateContent(view View, subviewID ...string) {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-
-	if view != nil {
 		switch view := view.(type) {
 		case GridLayout:
 			view.UpdateGridContent()
@@ -278,6 +270,9 @@ func UpdateContent(view View, subviewID ...string) {
 
 		case ListView:
 			view.ReloadListViewData()
+
+		case TableView:
+			view.ReloadTableData()
 		}
 	}
 }

listView.go

@@ -1098,11 +1098,7 @@ func GetListViewCheckbox(view View, subviewID ...string) int {
 // GetListViewCheckedItems returns the array of ListView checked items.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetListViewCheckedItems(view View, subviewID ...string) []int {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-
-	if view != nil {
 		if value := view.getRaw(Checked); value != nil {
 			if checkedItems, ok := value.([]int); ok {
 				switch GetListViewCheckbox(view) {
@@ -1179,10 +1175,7 @@ func GetListItemFrame(view View, subviewID string, index int) Frame {
 // GetListViewAdapter - returns the ListView adapter.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetListViewAdapter(view View, subviewID ...string) ListAdapter {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		if value := view.Get(Items); value != nil {
 			if adapter, ok := value.(ListAdapter); ok {
 				return adapter
@@ -1195,11 +1188,7 @@ func GetListViewAdapter(view View, subviewID ...string) ListAdapter {
 // ReloadListViewData updates ListView content
 // If the second argument (subviewID) is not specified or it is "" then content the first argument (view) is updated.
 func ReloadListViewData(view View, subviewID ...string) {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-
-	if view != nil {
 		if listView, ok := view.(ListView); ok {
 			listView.ReloadListViewData()
 		}

numberPicker.go

@@ -304,12 +304,8 @@ func GetNumberPickerType(view View, subviewID ...string) int {
 // GetNumberPickerMinMax returns the min and max value of NumberPicker subview.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetNumberPickerMinMax(view View, subviewID ...string) (float64, float64) {
-	var pickerType int
+	view = getSubview(view, subviewID)
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	pickerType := GetNumberPickerType(view)
-		pickerType = GetNumberPickerType(view, subviewID[0])
-	} else {
-		pickerType = GetNumberPickerType(view)
-	}
 
 	var defMin, defMax float64
 	if pickerType == NumberSlider {
@@ -320,8 +316,8 @@ func GetNumberPickerMinMax(view View, subviewID ...string) (float64, float64) {
 		defMax = math.Inf(1)
 	}
 
-	min := floatStyledProperty(view, subviewID, NumberPickerMin, defMin)
+	min := floatStyledProperty(view, nil, NumberPickerMin, defMin)
-	max := floatStyledProperty(view, subviewID, NumberPickerMax, defMax)
+	max := floatStyledProperty(view, nil, NumberPickerMax, defMax)
 
 	if min > max {
 		return max, min
@@ -332,14 +328,10 @@ func GetNumberPickerMinMax(view View, subviewID ...string) (float64, float64) {
 // GetNumberPickerStep returns the value changing step of NumberPicker subview.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetNumberPickerStep(view View, subviewID ...string) float64 {
-	var max float64
+	view = getSubview(view, subviewID)
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	_, max := GetNumberPickerMinMax(view)
-		_, max = GetNumberPickerMinMax(view, subviewID[0])
-	} else {
-		_, max = GetNumberPickerMinMax(view)
-	}
 
-	result := floatStyledProperty(view, subviewID, NumberPickerStep, 0)
+	result := floatStyledProperty(view, nil, NumberPickerStep, 0)
 	if result > max {
 		return max
 	}
@@ -349,15 +341,9 @@ func GetNumberPickerStep(view View, subviewID ...string) float64 {
 // GetNumberPickerValue returns the value of NumberPicker subview.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetNumberPickerValue(view View, subviewID ...string) float64 {
-	var min float64
+	view = getSubview(view, subviewID)
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	min, _ := GetNumberPickerMinMax(view)
-		min, _ = GetNumberPickerMinMax(view, subviewID[0])
+	return floatStyledProperty(view, nil, NumberPickerValue, min)
-	} else {
-		min, _ = GetNumberPickerMinMax(view)
-	}
-
-	result := floatStyledProperty(view, subviewID, NumberPickerValue, min)
-	return result
 }
 
 // GetNumberChangedListeners returns the NumberChangedListener list of an NumberPicker subview.

resizeEvent.go

@@ -73,9 +73,7 @@ func (view *viewData) Frame() Frame {
 // GetViewFrame returns the size and location of view's viewport.
 // If the second argument (subviewID) is not specified or it is "" then the value of the first argument (view) is returned
 func GetViewFrame(view View, subviewID ...string) Frame {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	view = getSubview(view, subviewID)
-		view = ViewByID(view, subviewID[0])
-	}
 	if view == nil {
 		return Frame{}
 	}

scrollEvent.go

@@ -42,9 +42,7 @@ func (view *viewData) setScroll(x, y, width, height float64) {
 // GetViewScroll returns ...
 // If the second argument (subviewID) is not specified or it is "" then a value of the first argument (view) is returned
 func GetViewScroll(view View, subviewID ...string) Frame {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	view = getSubview(view, subviewID)
-		view = ViewByID(view, subviewID[0])
-	}
 	if view == nil {
 		return Frame{}
 	}
@@ -71,10 +69,7 @@ func ScrollViewTo(view View, subviewID string, x, y float64) {
 // ScrollViewToEnd scrolls the view's content to the start of view.
 // If the second argument (subviewID) is not specified or it is "" then the first argument (view) is used
 func ScrollViewToStart(view View, subviewID ...string) {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		view.Session().callFunc("scrollToStart", view.htmlID())
 	}
 }
@@ -82,10 +77,7 @@ func ScrollViewToStart(view View, subviewID ...string) {
 // ScrollViewToEnd scrolls the view's content to the end of view.
 // If the second argument (subviewID) is not specified or it is "" then the first argument (view) is used
 func ScrollViewToEnd(view View, subviewID ...string) {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		view.Session().callFunc("scrollToEnd", view.htmlID())
 	}
 }

stackLayout.go

@@ -560,11 +560,7 @@ func (layout *stackLayoutData) htmlSubviews(self View, buffer *strings.Builder)
 // IsMoveToFrontAnimation returns "true" if an animation is used when calling the MoveToFront/MoveToFrontByID method of StackLayout interface.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func IsMoveToFrontAnimation(view View, subviewID ...string) bool {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-
-	if view != nil {
 		if value, ok := boolProperty(view, MoveToFrontAnimation, view.Session()); ok {
 			return value
 		}

tableViewUtils.go

@@ -28,11 +28,7 @@ func (cell *tableCellView) cssStyle(self View, builder cssBuilder) {
 // GetTableContent returns a TableAdapter which defines the TableView content.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetTableContent(view View, subviewID ...string) TableAdapter {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-
-	if view != nil {
 		if content := view.getRaw(Content); content != nil {
 			if adapter, ok := content.(TableAdapter); ok {
 				return adapter
@@ -46,11 +42,7 @@ func GetTableContent(view View, subviewID ...string) TableAdapter {
 // GetTableRowStyle returns a TableRowStyle which defines styles of TableView rows.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetTableRowStyle(view View, subviewID ...string) TableRowStyle {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-
-	if view != nil {
 		for _, tag := range []PropertyName{RowStyle, Content} {
 			if value := view.getRaw(tag); value != nil {
 				if style, ok := value.(TableRowStyle); ok {
@@ -66,11 +58,7 @@ func GetTableRowStyle(view View, subviewID ...string) TableRowStyle {
 // GetTableColumnStyle returns a TableColumnStyle which defines styles of TableView columns.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetTableColumnStyle(view View, subviewID ...string) TableColumnStyle {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-
-	if view != nil {
 		for _, tag := range []PropertyName{ColumnStyle, Content} {
 			if value := view.getRaw(tag); value != nil {
 				if style, ok := value.(TableColumnStyle); ok {
@@ -86,11 +74,7 @@ func GetTableColumnStyle(view View, subviewID ...string) TableColumnStyle {
 // GetTableCellStyle returns a TableCellStyle which defines styles of TableView cells.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetTableCellStyle(view View, subviewID ...string) TableCellStyle {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-
-	if view != nil {
 		for _, tag := range []PropertyName{CellStyle, Content} {
 			if value := view.getRaw(tag); value != nil {
 				if style, ok := value.(TableCellStyle); ok {
@@ -136,11 +120,7 @@ func GetTableFootHeight(view View, subviewID ...string) int {
 // If the selection mode is RowSelection (2) then the returned column index is less than 0.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetTableCurrent(view View, subviewID ...string) CellIndex {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-
-	if view != nil {
 		if selectionMode := GetTableSelectionMode(view); selectionMode != NoneSelection {
 			return tableViewCurrent(view)
 		}
@@ -179,37 +159,23 @@ func GetTableRowSelectedListeners(view View, subviewID ...string) []func(TableVi
 // ReloadTableViewData updates TableView
 // If the second argument (subviewID) is not specified or it is "" then updates the first argument (TableView).
 func ReloadTableViewData(view View, subviewID ...string) bool {
-	var tableView TableView
+	if view = getSubview(view, subviewID); view != nil {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+		if tableView, ok := view.(TableView); ok {
-		if tableView = TableViewByID(view, subviewID[0]); tableView == nil {
-			return false
-		}
-	} else {
-		var ok bool
-		if tableView, ok = view.(TableView); !ok {
-			return false
-		}
-	}
-
 			tableView.ReloadTableData()
 			return true
+		}
+	}
+	return false
 }
 
 // ReloadTableViewCell updates the given table cell.
 // If the last argument (subviewID) is not specified or it is "" then updates the cell of the first argument (TableView).
 func ReloadTableViewCell(row, column int, view View, subviewID ...string) bool {
-	var tableView TableView
+	if view = getSubview(view, subviewID); view != nil {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+		if tableView, ok := view.(TableView); ok {
-		if tableView = TableViewByID(view, subviewID[0]); tableView == nil {
-			return false
-		}
-	} else {
-		var ok bool
-		if tableView, ok = view.(TableView); !ok {
-			return false
-		}
-	}
-
 			tableView.ReloadCell(row, column)
 			return true
+		}
+	}
+	return false
 }

timePicker.go

@@ -375,10 +375,7 @@ func getTimeProperty(view View, mainTag, shortTag PropertyName) (time.Time, bool
 // "false" as the second value otherwise.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetTimePickerMin(view View, subviewID ...string) (time.Time, bool) {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		return getTimeProperty(view, TimePickerMin, Min)
 	}
 	return time.Now(), false
@@ -388,10 +385,7 @@ func GetTimePickerMin(view View, subviewID ...string) (time.Time, bool) {
 // "false" as the second value otherwise.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetTimePickerMax(view View, subviewID ...string) (time.Time, bool) {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		return getTimeProperty(view, TimePickerMax, Max)
 	}
 	return time.Now(), false
@@ -406,10 +400,7 @@ func GetTimePickerStep(view View, subviewID ...string) int {
 // GetTimePickerValue returns the time of TimePicker subview.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetTimePickerValue(view View, subviewID ...string) time.Time {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view == nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view == nil {
 		return time.Now()
 	}
 	time, _ := getTimeProperty(view, TimePickerValue, Value)

viewClip.go

@@ -565,10 +565,7 @@ func getClipShape(prop Properties, tag PropertyName, session Session) ClipShape
 // GetClip returns a View clipping area.
 // If the second argument (subviewID) is not specified or it is "" then a top position of the first argument (view) is returned
 func GetClip(view View, subviewID ...string) ClipShape {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		return getClipShape(view, Clip, view.Session())
 	}
 
@@ -578,10 +575,7 @@ func GetClip(view View, subviewID ...string) ClipShape {
 // GetShapeOutside returns a shape around which adjacent inline content.
 // If the second argument (subviewID) is not specified or it is "" then a top position of the first argument (view) is returned
 func GetShapeOutside(view View, subviewID ...string) ClipShape {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		return getClipShape(view, ShapeOutside, view.Session())
 	}
 

viewFilter.go

@@ -321,11 +321,7 @@ func setFilterProperty(properties Properties, tag PropertyName, value any) []Pro
 // GetFilter returns a View graphical effects like blur or color shift.
 // If the second argument (subviewID) is not specified or it is "" then a top position of the first argument (view) is returned
 func GetFilter(view View, subviewID ...string) ViewFilter {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-
-	if view != nil {
 		if value := view.getRaw(Filter); value != nil {
 			if filter, ok := value.(ViewFilter); ok {
 				return filter
@@ -344,11 +340,7 @@ func GetFilter(view View, subviewID ...string) ViewFilter {
 // GetBackdropFilter returns the area behind a View graphical effects like blur or color shift.
 // If the second argument (subviewID) is not specified or it is "" then a top position of the first argument (view) is returned
 func GetBackdropFilter(view View, subviewID ...string) ViewFilter {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-
-	if view != nil {
 		if value := view.getRaw(BackdropFilter); value != nil {
 			if filter, ok := value.(ViewFilter); ok {
 				return filter

viewUtils.go

@@ -70,13 +70,37 @@ func SetParams(rootView View, viewID string, params Params) bool {
 	return result
 }
 
+func getSubview(view View, subviewID []string) View {
+	switch len(subviewID) {
+	case 0:
+		// do nothing
+
+	case 1:
+		if subviewID[0] != "" {
+			view = ViewByID(view, subviewID[0])
+		}
+
+	default:
+		buffer := allocStringBuilder()
+		defer freeStringBuilder(buffer)
+		for _, id := range subviewID {
+			if id != "" {
+				if buffer.Len() > 0 {
+					buffer.WriteRune('/')
+				}
+				buffer.WriteString(id)
+			}
+		}
+		view = ViewByID(view, buffer.String())
+	}
+
+	return view
+}
+
 // IsDisabled returns "true" if the subview is disabled
 // If the second argument (subviewID) is not specified or it is "" then a state of the first argument (view) is returned
 func IsDisabled(view View, subviewID ...string) bool {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		if disabled, _ := boolProperty(view, Disabled, view.Session()); disabled {
 			return true
 		}
@@ -106,10 +130,7 @@ func GetOpacity(view View, subviewID ...string) float64 {
 // GetStyle returns the subview style id.
 // If the second argument (subviewID) is not specified or it is "" then a style of the first argument (view) is returned
 func GetStyle(view View, subviewID ...string) string {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		if style, ok := stringProperty(view, Style, view.Session()); ok {
 			return style
 		}
@@ -120,10 +141,7 @@ func GetStyle(view View, subviewID ...string) string {
 // GetDisabledStyle returns the disabled subview style id.
 // If the second argument (subviewID) is not specified or it is "" then a style of the first argument (view) is returned
 func GetDisabledStyle(view View, subviewID ...string) string {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		if style, ok := stringProperty(view, StyleDisabled, view.Session()); ok {
 			return style
 		}
@@ -142,12 +160,8 @@ func GetVisibility(view View, subviewID ...string) int {
 // OverflowHidden (0), OverflowVisible (1), OverflowScroll (2), OverflowAuto (3)
 // If the second argument (subviewID) is not specified or it is "" then a value of the first argument (view) is returned
 func GetOverflow(view View, subviewID ...string) int {
+	if view = getSubview(view, subviewID); view != nil {
 		defaultOverflow := OverflowHidden
-	view2 := view
-	if len(subviewID) > 0 && subviewID[0] != "" {
-		view2 = ViewByID(view, subviewID[0])
-	}
-	if view2 != nil {
 		switch view.(type) {
 		case EditView:
 			defaultOverflow = OverflowAuto
@@ -155,16 +169,16 @@ func GetOverflow(view View, subviewID ...string) int {
 		case ListView:
 			defaultOverflow = OverflowAuto
 		}
+		return enumStyledProperty(view, nil, Overflow, defaultOverflow, false)
 	}
-	return enumStyledProperty(view, subviewID, Overflow, defaultOverflow, false)
+
+	return OverflowHidden
 }
 
 // GetTabIndex returns the subview tab-index.
 // If the second argument (subviewID) is not specified or it is "" then a tab-index of the first argument (view) is returned
 func GetTabIndex(view View, subviewID ...string) int {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	view = getSubview(view, subviewID)
-		view = ViewByID(view, subviewID[0])
-	}
 
 	defaultValue := -1
 	if view != nil {
@@ -264,11 +278,8 @@ func GetBottom(view View, subviewID ...string) SizeUnit {
 // Margin returns the subview margin.
 // If the second argument (subviewID) is not specified or it is "" then a margin of the first argument (view) is returned
 func GetMargin(view View, subviewID ...string) Bounds {
-	if len(subviewID) > 0 && subviewID[0] != "" {
-		view = ViewByID(view, subviewID[0])
-	}
 	var bounds Bounds
-	if view != nil {
+	if view = getSubview(view, subviewID); view != nil {
 		bounds.setFromProperties(Margin, MarginTop, MarginRight, MarginBottom, MarginLeft, view, view.Session())
 	}
 	return bounds
@@ -277,11 +288,8 @@ func GetMargin(view View, subviewID ...string) Bounds {
 // GetPadding returns the subview padding.
 // If the second argument (subviewID) is not specified or it is "" then a padding of the first argument (view) is returned
 func GetPadding(view View, subviewID ...string) Bounds {
-	if len(subviewID) > 0 && subviewID[0] != "" {
-		view = ViewByID(view, subviewID[0])
-	}
 	var bounds Bounds
-	if view != nil {
+	if view = getSubview(view, subviewID); view != nil {
 		bounds.setFromProperties(Padding, PaddingTop, PaddingRight, PaddingBottom, PaddingLeft, view, view.Session())
 	}
 	return bounds
@@ -290,10 +298,7 @@ func GetPadding(view View, subviewID ...string) Bounds {
 // GetBorder returns ViewBorders of the subview.
 // If the second argument (subviewID) is not specified or it is "" then a ViewBorders of the first argument (view) is returned.
 func GetBorder(view View, subviewID ...string) ViewBorders {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		if border := getBorderProperty(view, Border); border != nil {
 			return border.ViewBorders(view.Session())
 		}
@@ -304,9 +309,7 @@ func GetBorder(view View, subviewID ...string) ViewBorders {
 // Radius returns the BoxRadius structure of the subview.
 // If the second argument (subviewID) is not specified or it is "" then a BoxRadius of the first argument (view) is returned.
 func GetRadius(view View, subviewID ...string) BoxRadius {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	view = getSubview(view, subviewID)
-		view = ViewByID(view, subviewID[0])
-	}
 	if view == nil {
 		return BoxRadius{}
 	}
@@ -316,10 +319,7 @@ func GetRadius(view View, subviewID ...string) BoxRadius {
 // GetOutline returns ViewOutline of the subview.
 // If the second argument (subviewID) is not specified or it is "" then a ViewOutline of the first argument (view) is returned.
 func GetOutline(view View, subviewID ...string) ViewOutline {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		if outline := getOutlineProperty(view); outline != nil {
 			return outline.ViewOutline(view.Session())
 		}
@@ -336,9 +336,7 @@ func GetOutlineOffset(view View, subviewID ...string) SizeUnit {
 // GetViewShadows returns shadows of the subview.
 // If the second argument (subviewID) is not specified or it is "" then shadows of the first argument (view) is returned.
 func GetViewShadows(view View, subviewID ...string) []ViewShadow {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	view = getSubview(view, subviewID)
-		view = ViewByID(view, subviewID[0])
-	}
 	if view == nil {
 		return []ViewShadow{}
 	}
@@ -348,9 +346,7 @@ func GetViewShadows(view View, subviewID ...string) []ViewShadow {
 // GetTextShadows returns text shadows of the subview.
 // If the second argument (subviewID) is not specified or it is "" then shadows of the first argument (view) is returned.
 func GetTextShadows(view View, subviewID ...string) []ViewShadow {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	view = getSubview(view, subviewID)
-		view = ViewByID(view, subviewID[0])
-	}
 	if view == nil {
 		return []ViewShadow{}
 	}
@@ -530,10 +526,7 @@ func GetVerticalTextOrientation(view View, subviewID ...string) int {
 // GetRow returns the range of row numbers of a GridLayout in which the subview is placed.
 // If the second argument (subviewID) is not specified or it is "" then a values from the first argument (view) is returned.
 func GetRow(view View, subviewID ...string) Range {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		session := view.Session()
 		if result, ok := rangeProperty(view, Row, session); ok {
 			return result
@@ -550,10 +543,7 @@ func GetRow(view View, subviewID ...string) Range {
 // GetColumn returns the range of column numbers of a GridLayout in which the subview is placed.
 // If the second argument (subviewID) is not specified or it is "" then a values from the first argument (view) is returned.
 func GetColumn(view View, subviewID ...string) Range {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		session := view.Session()
 		if result, ok := rangeProperty(view, Column, session); ok {
 			return result
@@ -586,9 +576,7 @@ func GetPerspective(view View, subviewID ...string) SizeUnit {
 // It is used as the vanishing point by the Perspective property. The default value is (50%, 50%).
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetPerspectiveOrigin(view View, subviewID ...string) (SizeUnit, SizeUnit) {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	view = getSubview(view, subviewID)
-		view = ViewByID(view, subviewID[0])
-	}
 	if view == nil {
 		return AutoSize(), AutoSize()
 	}
@@ -608,9 +596,7 @@ func GetBackfaceVisible(view View, subviewID ...string) bool {
 // The default value is (50%, 50%, 50%).
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetTransformOrigin(view View, subviewID ...string) (SizeUnit, SizeUnit, SizeUnit) {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	view = getSubview(view, subviewID)
-		view = ViewByID(view, subviewID[0])
-	}
 	if view == nil {
 		return AutoSize(), AutoSize(), AutoSize()
 	}
@@ -620,9 +606,7 @@ func GetTransformOrigin(view View, subviewID ...string) (SizeUnit, SizeUnit, Siz
 // GetTranslate returns a x-, y-, and z-axis translation value of a 2D/3D translation
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetTranslate(view View, subviewID ...string) (SizeUnit, SizeUnit, SizeUnit) {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	view = getSubview(view, subviewID)
-		view = ViewByID(view, subviewID[0])
-	}
 	if view == nil {
 		return AutoSize(), AutoSize(), AutoSize()
 	}
@@ -638,9 +622,7 @@ func GetTranslate(view View, subviewID ...string) (SizeUnit, SizeUnit, SizeUnit)
 // and the ordinate (y-axis). The default value is 0.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetSkew(view View, subviewID ...string) (AngleUnit, AngleUnit) {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	view = getSubview(view, subviewID)
-		view = ViewByID(view, subviewID[0])
-	}
 	if view == nil {
 		return AngleUnit{Value: 0, Type: Radian}, AngleUnit{Value: 0, Type: Radian}
 	}
@@ -652,9 +634,7 @@ func GetSkew(view View, subviewID ...string) (AngleUnit, AngleUnit) {
 // GetScale returns a x-, y-, and z-axis scaling value of a 2D/3D scale. The default value is 1.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetScale(view View, subviewID ...string) (float64, float64, float64) {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	view = getSubview(view, subviewID)
-		view = ViewByID(view, subviewID[0])
-	}
 	if view == nil {
 		return 1, 1, 1
 	}
@@ -669,9 +649,7 @@ func GetScale(view View, subviewID ...string) (float64, float64, float64) {
 // GetRotate returns a x-, y, z-coordinate of the vector denoting the axis of rotation, and the angle of the view rotation
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetRotate(view View, subviewID ...string) (float64, float64, float64, AngleUnit) {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	view = getSubview(view, subviewID)
-		view = ViewByID(view, subviewID[0])
-	}
 	if view == nil {
 		return 0, 0, 0, AngleUnit{Value: 0, Type: Radian}
 	}
@@ -717,10 +695,7 @@ func valueFromStyle(view View, tag PropertyName) any {
 }
 
 func stringStyledProperty(view View, subviewID []string, tag PropertyName, inherit bool) string {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		if text, ok := stringProperty(view, tag, view.Session()); ok {
 			return text
 		}
@@ -740,11 +715,7 @@ func stringStyledProperty(view View, subviewID []string, tag PropertyName, inher
 }
 
 func sizeStyledProperty(view View, subviewID []string, tag PropertyName, inherit bool) SizeUnit {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-
-	if view != nil {
 		if value, ok := sizeProperty(view, tag, view.Session()); ok {
 			return value
 		}
@@ -764,11 +735,7 @@ func sizeStyledProperty(view View, subviewID []string, tag PropertyName, inherit
 }
 
 func enumStyledProperty(view View, subviewID []string, tag PropertyName, defaultValue int, inherit bool) int {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-
-	if view != nil {
 		if value, ok := enumProperty(view, tag, view.Session(), defaultValue); ok {
 			return value
 		}
@@ -788,11 +755,7 @@ func enumStyledProperty(view View, subviewID []string, tag PropertyName, default
 }
 
 func boolStyledProperty(view View, subviewID []string, tag PropertyName, inherit bool) bool {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-
-	if view != nil {
 		if value, ok := boolProperty(view, tag, view.Session()); ok {
 			return value
 		}
@@ -813,11 +776,7 @@ func boolStyledProperty(view View, subviewID []string, tag PropertyName, inherit
 }
 
 func intStyledProperty(view View, subviewID []string, tag PropertyName, defaultValue int) int {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-
-	if view != nil {
 		if value, ok := intProperty(view, tag, view.Session(), defaultValue); ok {
 			return value
 		}
@@ -830,10 +789,7 @@ func intStyledProperty(view View, subviewID []string, tag PropertyName, defaultV
 }
 
 func floatStyledProperty(view View, subviewID []string, tag PropertyName, defaultValue float64) float64 {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		if value, ok := floatProperty(view, tag, view.Session(), defaultValue); ok {
 			return value
 		}
@@ -846,10 +802,7 @@ func floatStyledProperty(view View, subviewID []string, tag PropertyName, defaul
 }
 
 func colorStyledProperty(view View, subviewID []string, tag PropertyName, inherit bool) Color {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		if value, ok := colorProperty(view, tag, view.Session()); ok {
 			return value
 		}
@@ -868,10 +821,7 @@ func colorStyledProperty(view View, subviewID []string, tag PropertyName, inheri
 }
 
 func transformStyledProperty(view View, subviewID []string, tag PropertyName) TransformProperty {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		if transform := getTransformProperty(view, tag); transform != nil {
 			return transform
 		}
@@ -887,10 +837,7 @@ func transformStyledProperty(view View, subviewID []string, tag PropertyName) Tr
 // The focused View is the View which will receive keyboard events by default.
 // If the second argument (subviewID) is not specified or it is "" then focus is set on the first argument (view)
 func FocusView(view View, subviewID ...string) {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-	if view != nil {
 		view.Session().callFunc("focus", view.htmlID())
 	}
 }
@@ -920,12 +867,8 @@ func BlurViewByID(viewID string, session Session) {
 // GetCurrent returns the index of the selected item (<0 if there is no a selected item) or the current view index (StackLayout, TabsLayout).
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetCurrent(view View, subviewID ...string) int {
-	if len(subviewID) > 0 && subviewID[0] != "" {
-		view = ViewByID(view, subviewID[0])
-	}
-
 	defaultValue := -1
-	if view != nil {
+	if view = getSubview(view, subviewID); view != nil {
 		if result, ok := intProperty(view, Current, view.Session(), defaultValue); ok {
 			return result
 		} else if view.Tag() != "ListView" {
@@ -938,11 +881,7 @@ func GetCurrent(view View, subviewID ...string) int {
 // IsUserSelect returns "true" if the user can select text, "false" otherwise.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func IsUserSelect(view View, subviewID ...string) bool {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-
-	if view != nil {
 		value, _ := isUserSelect(view)
 		return value
 	}
@@ -1006,11 +945,7 @@ func GetBackgroundBlendMode(view View, subviewID ...string) int {
 // GetTooltip returns a tooltip text of the subview.
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
 func GetTooltip(view View, subviewID ...string) string {
-	if len(subviewID) > 0 && subviewID[0] != "" {
+	if view = getSubview(view, subviewID); view != nil {
-		view = ViewByID(view, subviewID[0])
-	}
-
-	if view != nil {
 		if value := view.Get(Tooltip); value != nil {
 			if text, ok := value.(string); ok {
 				return text