Added fmt.Stringer implementation to Popup

animation.go

@@ -599,11 +599,14 @@ func (animation *animationData) String() string {
 	for _, tag := range animation.AllTags() {
 		if tag != PropertyTag {
 			if value, ok := animation.properties[tag]; ok && value != nil {
-				buffer.WriteString("\n\t")
+				text := propertyValueToString(tag, value, "\t")
-				buffer.WriteString(string(tag))
+				if text != "" {
-				buffer.WriteString(" = ")
+					buffer.WriteString("\n\t")
-				writePropertyValue(buffer, tag, value, "\t")
+					buffer.WriteString(string(tag))
-				buffer.WriteRune(',')
+					buffer.WriteString(" = ")
+					buffer.WriteString(text)
+					buffer.WriteRune(',')
+				}
 			}
 		}
 	}
@@ -613,18 +616,21 @@ func (animation *animationData) String() string {
 		buffer.WriteString("{\n")
 		buffer.WriteString(indent)
 		buffer.WriteString("from = ")
-		writePropertyValue(buffer, "from", prop.From, indent)
+		buffer.WriteString(propertyValueToString("from", prop.From, indent))
 		buffer.WriteString(",\n")
 		buffer.WriteString(indent)
 		buffer.WriteString("to = ")
-		writePropertyValue(buffer, "to", prop.To, indent)
+		buffer.WriteString(propertyValueToString("to", prop.To, indent))
 		for key, value := range prop.KeyFrames {
-			buffer.WriteString(",\n")
-			buffer.WriteString(indent)
 			tag := strconv.Itoa(key) + "%"
-			buffer.WriteString(tag)
+			text := propertyValueToString(PropertyName(tag), value, indent)
-			buffer.WriteString(" = ")
+			if text != "" {
-			writePropertyValue(buffer, PropertyName(tag), value, indent)
+				buffer.WriteString(",\n")
+				buffer.WriteString(indent)
+				buffer.WriteString(tag)
+				buffer.WriteString(" = ")
+				buffer.WriteString(text)
+			}
 		}
 		buffer.WriteString("\n")
 		buffer.WriteString(indent[1:])
@@ -725,12 +731,15 @@ func (animation *animationData) writeTransitionString(tag PropertyName, buffer *
 
 	writeFloatProperty := func(name PropertyName) bool {
 		if value := animation.getRaw(name); value != nil {
-			buffer.WriteString(lead)
+			text := propertyValueToString(name, value, "")
-			buffer.WriteString(string(name))
+			if text != "" {
-			buffer.WriteString(" = ")
+				buffer.WriteString(lead)
-			writePropertyValue(buffer, name, value, "")
+				buffer.WriteString(string(name))
-			lead = ", "
+				buffer.WriteString(" = ")
-			return true
+				buffer.WriteString(text)
+				lead = ", "
+				return true
+			}
 		}
 		return false
 	}
@@ -770,11 +779,14 @@ func (animation *animationData) writeAnimationString(tag PropertyName, buffer *s
 		for _, tag := range animation.AllTags() {
 			if tag != PropertyTag {
 				if value := animation.Get(tag); value != nil {
-					buffer.WriteString("\n" + indent2)
+					text := propertyValueToString(tag, value, indent2)
-					buffer.WriteString(string(tag))
+					if text != "" {
-					buffer.WriteString(" = ")
+						buffer.WriteString("\n" + indent2)
-					writePropertyValue(buffer, tag, value, indent2)
+						buffer.WriteString(string(tag))
-					buffer.WriteRune(',')
+						buffer.WriteString(" = ")
+						buffer.WriteString(text)
+						buffer.WriteRune(',')
+					}
 				}
 			}
 		}
@@ -785,18 +797,21 @@ func (animation *animationData) writeAnimationString(tag PropertyName, buffer *s
 			indent2 := indent + "\t"
 			buffer.WriteString(indent2)
 			buffer.WriteString("from = ")
-			writePropertyValue(buffer, "from", prop.From, indent2)
+			buffer.WriteString(propertyValueToString("from", prop.From, indent2))
 			buffer.WriteString(",\n")
 			buffer.WriteString(indent2)
 			buffer.WriteString("to = ")
-			writePropertyValue(buffer, "to", prop.To, indent2)
+			buffer.WriteString(propertyValueToString("to", prop.To, indent2))
 			for key, value := range prop.KeyFrames {
-				buffer.WriteString(",\n")
+				text := propertyValueToString(PropertyName(tag), value, indent2)
-				buffer.WriteString(indent2)
+				if text != "" {
-				tag := strconv.Itoa(key) + "%"
+					buffer.WriteString(",\n")
-				buffer.WriteString(tag)
+					buffer.WriteString(indent2)
-				buffer.WriteString(" = ")
+					tag := strconv.Itoa(key) + "%"
-				writePropertyValue(buffer, PropertyName(tag), value, indent2)
+					buffer.WriteString(tag)
+					buffer.WriteString(" = ")
+					buffer.WriteString(text)
+				}
 			}
 			buffer.WriteString(",\n")
 			buffer.WriteString(indent)

border.go

@@ -383,13 +383,16 @@ func (border *borderProperty) writeString(buffer *strings.Builder, indent string
 	comma := false
 
 	write := func(tag PropertyName, value any) {
-		if comma {
+		text := propertyValueToString(tag, value, indent)
-			buffer.WriteString(", ")
+		if text != "" {
+			if comma {
+				buffer.WriteString(", ")
+			}
+			buffer.WriteString(string(tag))
+			buffer.WriteString(" = ")
+			buffer.WriteString(text)
+			comma = true
 		}
-		buffer.WriteString(string(tag))
-		buffer.WriteString(" = ")
-		writePropertyValue(buffer, BorderStyle, value, indent)
-		comma = true
 	}
 
 	for _, tag := range []PropertyName{Style, Width, ColorTag} {

bounds.go

@@ -84,23 +84,6 @@ func (bounds *boundsPropertyData) String() string {
 	return runStringWriter(bounds)
 }
 
-func (bounds *boundsPropertyData) writeString(buffer *strings.Builder, indent string) {
-	buffer.WriteString("_{ ")
-	comma := false
-	for _, tag := range []PropertyName{Top, Right, Bottom, Left} {
-		if value, ok := bounds.properties[tag]; ok {
-			if comma {
-				buffer.WriteString(", ")
-			}
-			buffer.WriteString(string(tag))
-			buffer.WriteString(" = ")
-			writePropertyValue(buffer, tag, value, indent)
-			comma = true
-		}
-	}
-	buffer.WriteString(" }")
-}
-
 func (bounds *boundsPropertyData) Bounds(session Session) Bounds {
 	top, _ := sizeProperty(bounds, Top, session)
 	right, _ := sizeProperty(bounds, Right, session)

canvas.go

@@ -815,40 +815,6 @@ func (canvas *canvasData) FillAndStrokeEllipse(x, y, radiusX, radiusY, rotation
 	}
 }
 
-/*
-func (canvas *canvasData) writePointArgs(x, y float64) {
-	canvas.script.WriteString(strconv.FormatFloat(x, 'g', -1, 64))
-	canvas.script.WriteRune(',')
-	canvas.script.WriteString(strconv.FormatFloat(y, 'g', -1, 64))
-}
-
-func (canvas *canvasData) writeStringArgs(text string, script *strings.Builder) {
-	//rText := []rune(text)
-	for _, ch := range text {
-		switch ch {
-		case '\t':
-			script.WriteString(`\t`)
-		case '\n':
-			script.WriteString(`\n`)
-		case '\r':
-			script.WriteString(`\r`)
-		case '\\':
-			script.WriteString(`\\`)
-		case '"':
-			script.WriteString(`\"`)
-		case '\'':
-			script.WriteString(`\'`)
-		default:
-			if ch < ' ' {
-				script.WriteString(fmt.Sprintf("\\x%02X", int(ch)))
-			} else {
-				script.WriteRune(ch)
-			}
-		}
-	}
-}
-*/
-
 func (canvas *canvasData) FillText(x, y float64, text string) {
 	canvas.session.callCanvasFunc("fillText", text, x, y)
 }

clipShape.go

@@ -230,13 +230,16 @@ func (clip *insetClipData) writeString(buffer *strings.Builder, indent string) {
 	comma := false
 	for _, tag := range []PropertyName{Top, Right, Bottom, Left, Radius} {
 		if value, ok := clip.properties[tag]; ok {
-			if comma {
+			text := propertyValueToString(tag, value, indent)
-				buffer.WriteString(", ")
+			if text != "" {
+				if comma {
+					buffer.WriteString(", ")
+				}
+				buffer.WriteString(string(tag))
+				buffer.WriteString(" = ")
+				buffer.WriteString(text)
+				comma = true
 			}
-			buffer.WriteString(string(tag))
-			buffer.WriteString(" = ")
-			writePropertyValue(buffer, tag, value, indent)
-			comma = true
 		}
 	}
 
@@ -303,13 +306,16 @@ func (clip *circleClipData) writeString(buffer *strings.Builder, indent string)
 	comma := false
 	for _, tag := range []PropertyName{Radius, X, Y} {
 		if value, ok := clip.properties[tag]; ok {
-			if comma {
+			text := propertyValueToString(tag, value, indent)
-				buffer.WriteString(", ")
+			if text != "" {
+				if comma {
+					buffer.WriteString(", ")
+				}
+				buffer.WriteString(string(tag))
+				buffer.WriteString(" = ")
+				buffer.WriteString(text)
+				comma = true
 			}
-			buffer.WriteString(string(tag))
-			buffer.WriteString(" = ")
-			writePropertyValue(buffer, tag, value, indent)
-			comma = true
 		}
 	}
 
@@ -380,13 +386,16 @@ func (clip *ellipseClipData) writeString(buffer *strings.Builder, indent string)
 	comma := false
 	for _, tag := range []PropertyName{RadiusX, RadiusY, X, Y} {
 		if value, ok := clip.properties[tag]; ok {
-			if comma {
+			text := propertyValueToString(tag, value, indent)
-				buffer.WriteString(", ")
+			if text != "" {
+				if comma {
+					buffer.WriteString(", ")
+				}
+				buffer.WriteString(string(tag))
+				buffer.WriteString(" = ")
+				buffer.WriteString(text)
+				comma = true
 			}
-			buffer.WriteString(string(tag))
-			buffer.WriteString(" = ")
-			writePropertyValue(buffer, tag, value, indent)
-			comma = true
 		}
 	}
 
@@ -511,11 +520,16 @@ func (clip *polygonClipData) writeString(buffer *strings.Builder, indent string)
 	if points := clip.points(); points != nil {
 		buffer.WriteString(string(Points))
 		buffer.WriteString(` = "`)
-		for i, value := range points {
+		comma := false
-			if i > 0 {
+		for _, value := range points {
-				buffer.WriteString(", ")
+			text := propertyValueToString("", value, indent)
+			if text != "" {
+				if comma {
+					buffer.WriteString(", ")
+				}
+				buffer.WriteString(text)
+				comma = true
 			}
-			writePropertyValue(buffer, "", value, indent)
 		}
 
 		buffer.WriteString(`" `)

columnSeparator.go

@@ -2,7 +2,6 @@ package rui
 
 import (
 	"fmt"
-	"strings"
 )
 
 // ColumnSeparatorProperty is the interface of a view separator data
@@ -114,24 +113,6 @@ func normalizeColumnSeparatorTag(tag PropertyName) PropertyName {
 	return tag
 }
 
-func (separator *columnSeparatorProperty) writeString(buffer *strings.Builder, indent string) {
-	buffer.WriteString("_{ ")
-	comma := false
-	for _, tag := range []PropertyName{Style, Width, ColorTag} {
-		if value, ok := separator.properties[tag]; ok {
-			if comma {
-				buffer.WriteString(", ")
-			}
-			buffer.WriteString(string(tag))
-			buffer.WriteString(" = ")
-			writePropertyValue(buffer, BorderStyle, value, indent)
-			comma = true
-		}
-	}
-
-	buffer.WriteString(" }")
-}
-
 func (separator *columnSeparatorProperty) String() string {
 	return runStringWriter(separator)
 }

filter.go

@@ -218,21 +218,7 @@ func (filter *filterData) String() string {
 }
 
 func (filter *filterData) writeString(buffer *strings.Builder, indent string) {
-	buffer.WriteString("filter { ")
+	filter.writeToBuffer(buffer, indent, "filter", filter.AllTags())
-	comma := false
-	tags := filter.AllTags()
-	for _, tag := range tags {
-		if value, ok := filter.properties[tag]; ok {
-			if comma {
-				buffer.WriteString(", ")
-			}
-			buffer.WriteString(string(tag))
-			buffer.WriteString(" = ")
-			writePropertyValue(buffer, tag, value, indent)
-			comma = true
-		}
-	}
-	buffer.WriteString(" }")
 }
 
 func (filter *filterData) cssStyle(session Session) string {

outline.go

@@ -40,24 +40,6 @@ func (outline *outlinePropertyData) init() {
 	outline.supportedProperties = []PropertyName{Style, Width, ColorTag}
 }
 
-func (outline *outlinePropertyData) writeString(buffer *strings.Builder, indent string) {
-	buffer.WriteString("_{ ")
-	comma := false
-	for _, tag := range []PropertyName{Style, Width, ColorTag} {
-		if value, ok := outline.properties[tag]; ok {
-			if comma {
-				buffer.WriteString(", ")
-			}
-			buffer.WriteString(string(tag))
-			buffer.WriteString(" = ")
-			writePropertyValue(buffer, BorderStyle, value, indent)
-			comma = true
-		}
-	}
-
-	buffer.WriteString(" }")
-}
-
 func (outline *outlinePropertyData) String() string {
 	return runStringWriter(outline)
 }

popup.go

@@ -279,6 +279,7 @@ type popupButton struct {
 // Popup represents a Popup view
 type Popup interface {
 	Properties
+	fmt.Stringer
 
 	// View returns a content view of the popup
 	View() View
@@ -600,6 +601,7 @@ func (popup *popupData) Set(tag PropertyName, value any) bool {
 		switch value := value.(type) {
 		case View:
 			popup.contentView = value
+			popup.setRaw(Content, popup.contentView)
 
 		case DataObject:
 			view := CreateViewFromObject(popup.session, value, nil)
@@ -607,6 +609,7 @@ func (popup *popupData) Set(tag PropertyName, value any) bool {
 				return false
 			}
 			popup.contentView = view
+			popup.setRaw(Content, popup.contentView)
 
 		case string:
 			if len(value) > 0 && value[0] == '@' {
@@ -617,6 +620,7 @@ func (popup *popupData) Set(tag PropertyName, value any) bool {
 				}
 			}
 			popup.contentView = NewTextView(popup.session, Params{Text: value})
+			popup.setRaw(Content, value)
 
 		default:
 			notCompatibleType(Buttons, value)
@@ -626,12 +630,14 @@ func (popup *popupData) Set(tag PropertyName, value any) bool {
 		if binding := popup.getRaw(Binding); binding != nil {
 			popup.contentView.Set(Binding, binding)
 		}
-		popup.setRaw(Content, popup.contentView)
+
 		popup.propertyChanged(Content)
 		return true
 
 	case Binding:
-		popup.contentView.Set(Binding, value)
+		if popup.contentView != nil {
+			popup.contentView.Set(Binding, value)
+		}
 		popup.setRaw(Binding, value)
 		popup.propertyChanged(Binding)
 		return true
@@ -777,18 +783,19 @@ func (popup *popupData) animationProperty() AnimationProperty {
 	})
 }
 
-func (popup *popupData) AllTags() []PropertyName {
+/*
-	tags := make([]PropertyName, 0, len(popup.properties)+1)
+	func (popup *popupData) AllTags() []PropertyName {
-	for tag := range popup.properties {
+		tags := make([]PropertyName, 0, len(popup.properties)+1)
-		tags = append(tags, tag)
+		for tag := range popup.properties {
+			tags = append(tags, tag)
+		}
+		if popup.contentView != nil {
+			tags = append(tags, Content)
+		}
+		slices.Sort(tags)
+		return tags
 	}
-	if popup.contentView != nil {
+*/
-		tags = append(tags, Content)
-	}
-	slices.Sort(tags)
-	return tags
-}
-
 func (popup *popupData) View() View {
 	return popup.contentView
 }
@@ -797,6 +804,13 @@ func (popup *popupData) Session() Session {
 	return popup.session
 }
 
+func (popup *popupData) String() string {
+	buffer := allocStringBuilder()
+	defer freeStringBuilder(buffer)
+	writeViewStyle("Popup", popup, buffer, "", nil)
+	return buffer.String()
+}
+
 func (popup *popupData) setButtons(value any) bool {
 	popupButtonFromObject := func(obj DataObject) popupButton {
 		var button popupButton
@@ -1570,3 +1584,13 @@ func valueToPopupEventListeners(value any) ([]popupListener, bool) {
 
 	return nil, false
 }
+
+func getPopupListenerBinding(listeners []popupListener) string {
+	for _, listener := range listeners {
+		raw := listener.rawListener()
+		if text, ok := raw.(string); ok && text != "" {
+			return text
+		}
+	}
+	return ""
+}

properties.go

@@ -102,11 +102,14 @@ func (properties *propertyList) writeToBuffer(buffer *strings.Builder,
 
 	for _, tag := range tags {
 		if value, ok := properties.properties[tag]; ok {
-			buffer.WriteString(indent2)
+			text := propertyValueToString(tag, value, indent2)
-			buffer.WriteString(string(tag))
+			if text != "" {
-			buffer.WriteString(" = ")
+				buffer.WriteString(indent2)
-			writePropertyValue(buffer, tag, value, indent2)
+				buffer.WriteString(string(tag))
-			buffer.WriteString(",\n")
+				buffer.WriteString(" = ")
+				buffer.WriteString(text)
+				buffer.WriteString(",\n")
+			}
 		}
 	}
 
@@ -158,3 +161,28 @@ func (data *dataProperty) Get(tag PropertyName) any {
 func (data *dataProperty) Remove(tag PropertyName) {
 	data.remove(data, data.normalize(tag))
 }
+
+func (data *dataProperty) writeToBuffer(buffer *strings.Builder, indent string, objectName string, tags []PropertyName) {
+	buffer.WriteString(objectName)
+	buffer.WriteString("{ ")
+	comma := false
+	for _, tag := range tags {
+		if value, ok := data.properties[tag]; ok {
+			text := propertyValueToString(tag, value, indent)
+			if text != "" {
+				if comma {
+					buffer.WriteString(", ")
+				}
+				buffer.WriteString(string(tag))
+				buffer.WriteString(" = ")
+				buffer.WriteString(text)
+				comma = true
+			}
+		}
+	}
+	buffer.WriteString(" }")
+}
+
+func (data *dataProperty) writeString(buffer *strings.Builder, indent string) {
+	data.writeToBuffer(buffer, indent, "_", data.AllTags())
+}

radius.go

@@ -475,24 +475,6 @@ func (radius *radiusPropertyData) init() {
 	}
 }
 
-func (radius *radiusPropertyData) writeString(buffer *strings.Builder, indent string) {
-	buffer.WriteString("_{ ")
-	comma := false
-	for _, tag := range radius.supportedProperties {
-		if value, ok := radius.properties[tag]; ok {
-			if comma {
-				buffer.WriteString(", ")
-			}
-			buffer.WriteString(string(tag))
-			buffer.WriteString(" = ")
-			writePropertyValue(buffer, tag, value, indent)
-			comma = true
-		}
-	}
-
-	buffer.WriteString(" }")
-}
-
 func (radius *radiusPropertyData) String() string {
 	return runStringWriter(radius)
 }

ruiWriter.go

@@ -59,7 +59,7 @@ func (writer *ruiWriterData) writeString(str string) {
 				{old: "\"", new: `\"`},
 			}
 			for _, s := range replace {
-				str = strings.Replace(str, s.old, s.new, -1)
+				str = strings.ReplaceAll(str, s.old, s.new)
 			}
 			writer.buffer.WriteRune('"')
 			writer.buffer.WriteString(str)

shadow.go

@@ -281,23 +281,6 @@ func (shadow *shadowPropertyData) String() string {
 	return runStringWriter(shadow)
 }
 
-func (shadow *shadowPropertyData) writeString(buffer *strings.Builder, indent string) {
-	buffer.WriteString("_{ ")
-	comma := false
-	for _, tag := range shadow.AllTags() {
-		if value, ok := shadow.properties[tag]; ok {
-			if comma {
-				buffer.WriteString(", ")
-			}
-			buffer.WriteString(string(tag))
-			buffer.WriteString(" = ")
-			writePropertyValue(buffer, tag, value, indent)
-			comma = true
-		}
-	}
-	buffer.WriteString(" }")
-}
-
 func setShadowProperty(properties Properties, tag PropertyName, value any) bool {
 
 	if value == nil {

theme.go

@@ -902,19 +902,9 @@ func (theme *theme) String() string {
 	defer freeStringBuilder(buffer)
 
 	writeString := func(text string) {
-		if strings.ContainsAny(text, " \t\n\r\\\"'`,;{}[]()") {
+		if isQuotesNeeded(text) {
-			replace := []struct{ old, new string }{
-				{old: "\\", new: `\\`},
-				{old: "\t", new: `\t`},
-				{old: "\r", new: `\r`},
-				{old: "\n", new: `\n`},
-				{old: "\"", new: `\"`},
-			}
-			for _, s := range replace {
-				text = strings.Replace(text, s.old, s.new, -1)
-			}
 			buffer.WriteRune('"')
-			buffer.WriteString(text)
+			buffer.WriteString(replaceEscapeSymbols(text))
 			buffer.WriteRune('"')
 		} else {
 			buffer.WriteString(text)

transform.go

@@ -328,23 +328,6 @@ func (transform *transformPropertyData) String() string {
 	return buffer.String()
 }
 
-func (transform *transformPropertyData) writeString(buffer *strings.Builder, indent string) {
-	buffer.WriteString("_{ ")
-	comma := false
-	for _, tag := range transform.supportedProperties {
-		if value, ok := transform.properties[tag]; ok {
-			if comma {
-				buffer.WriteString(", ")
-			}
-			buffer.WriteString(string(tag))
-			buffer.WriteString(" = ")
-			writePropertyValue(buffer, tag, value, indent)
-			comma = true
-		}
-	}
-	buffer.WriteString(" }")
-}
-
 func transformSet(properties Properties, tag PropertyName, value any) []PropertyName {
 	switch tag {
 

viewStyle.go

@@ -551,235 +551,134 @@ func viewStyleGet(style Properties, tag PropertyName) any {
 	return style.getRaw(tag)
 }
 
-func supportedPropertyValue(value any) bool {
+func isQuotesNeeded(text string) bool {
-	switch value := value.(type) {
+	if len(text) == 1 {
-	case string, bool, float32, float64, int, stringWriter, fmt.Stringer:
+		simple := (text[0] >= '0' && text[0] <= '9') || (text[0] >= 'A' && text[0] <= 'Z') || (text[0] >= 'a' && text[0] <= 'z')
-		return true
+		return !simple
-
+	} else {
-	case []string:
+		for _, ch := range text {
-		return len(value) > 0
+			if (ch >= '0' && ch <= '9') || (ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z') ||
-
+				ch == '+' || ch == '-' || ch == '@' || ch == '/' || ch == '_' || ch == '.' ||
-	case []ShadowProperty:
+				ch == ':' || ch == '#' || ch == '%' || ch == 'π' || ch == '°' {
-		return len(value) > 0
+			} else {
-
-	case []View:
-		return len(value) > 0
-
-	case []any:
-		return len(value) > 0
-
-	case []BackgroundElement:
-		return len(value) > 0
-
-	case []BackgroundGradientPoint:
-		return len(value) > 0
-
-	case []BackgroundGradientAngle:
-		return len(value) > 0
-
-	case map[PropertyName]AnimationProperty:
-		return len(value) > 0
-
-	case []AnimationProperty:
-		return len(value) > 0
-
-	case []noArgListener[View]:
-		return getNoArgBinding(value) != ""
-
-	case []noArgListener[ImageView]:
-		return getNoArgBinding(value) != ""
-
-	case []noArgListener[MediaPlayer]:
-		return getNoArgBinding(value) != ""
-
-	case []oneArgListener[View, KeyEvent]:
-		return getOneArgBinding(value) != ""
-
-	case []oneArgListener[View, MouseEvent]:
-		return getOneArgBinding(value) != ""
-
-	case []oneArgListener[View, TouchEvent]:
-		return getOneArgBinding(value) != ""
-
-	case []oneArgListener[View, PointerEvent]:
-		return getOneArgBinding(value) != ""
-
-	case []oneArgListener[View, PropertyName]:
-		return getOneArgBinding(value) != ""
-
-	case []oneArgListener[View, string]:
-		return getOneArgBinding(value) != ""
-
-	case []oneArgListener[View, Frame]:
-		return getOneArgBinding(value) != ""
-
-	case []oneArgListener[View, DragAndDropEvent]:
-		return getOneArgBinding(value) != ""
-
-	case []oneArgListener[Checkbox, bool]:
-		return getOneArgBinding(value) != ""
-
-	case []oneArgListener[FilePicker, []FileInfo]:
-		return getOneArgBinding(value) != ""
-
-	case []oneArgListener[ListView, int]:
-		return getOneArgBinding(value) != ""
-
-	case []oneArgListener[ListView, []int]:
-		return getOneArgBinding(value) != ""
-
-	case []oneArgListener[MediaPlayer, float64]:
-		return getOneArgBinding(value) != ""
-
-	case []oneArgListener[TableView, int]:
-		return getOneArgBinding(value) != ""
-
-	case []oneArgListener[TabsLayout, int]:
-		return getOneArgBinding(value) != ""
-
-	case []twoArgListener[ColorPicker, Color]:
-		return getTwoArgBinding(value) != ""
-
-	case []twoArgListener[DatePicker, time.Time]:
-		return getTwoArgBinding(value) != ""
-
-	case []twoArgListener[TimePicker, time.Time]:
-		return getTwoArgBinding(value) != ""
-
-	case []twoArgListener[DropDownList, int]:
-		return getTwoArgBinding(value) != ""
-
-	case []twoArgListener[EditView, string]:
-		return getTwoArgBinding(value) != ""
-
-	case []twoArgListener[NumberPicker, float64]:
-		return getTwoArgBinding(value) != ""
-
-	case []twoArgListener[TableView, int]:
-		return getTwoArgBinding(value) != ""
-
-	case []twoArgListener[TabsLayout, int]:
-		return getTwoArgBinding(value) != ""
-
-	case []mediaPlayerErrorListener:
-		return getMediaPlayerErrorListenerBinding(value) != ""
-
-	case map[PropertyName]oneArgListener[View, PropertyName]:
-		for _, listener := range value {
-			if text, ok := listener.rawListener().(string); ok && text != "" {
 				return true
 			}
 		}
-		return false
-
-	default:
-		return false
 	}
+	return false
 }
 
-func writePropertyValue(buffer *strings.Builder, tag PropertyName, value any, indent string) {
+func replaceEscapeSymbols(text string) string {
+	replace := []struct{ old, new string }{
+		{old: "\\", new: `\\`},
+		{old: "\t", new: `\t`},
+		{old: "\r", new: `\r`},
+		{old: "\n", new: `\n`},
+		{old: "\"", new: `\"`},
+	}
+	for _, s := range replace {
+		text = strings.ReplaceAll(text, s.old, s.new)
+	}
+	return text
+}
 
-	writeString := func(text string) {
+func propertyValueToString(tag PropertyName, value any, indent string) string {
-		simple := (tag != Text && tag != Title && tag != Summary)
-		if simple {
-			if len(text) == 1 {
-				simple = (text[0] >= '0' && text[0] <= '9') || (text[0] >= 'A' && text[0] <= 'Z') || (text[0] >= 'a' && text[0] <= 'z')
-			} else {
-				for _, ch := range text {
-					if (ch >= '0' && ch <= '9') || (ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z') ||
-						ch == '+' || ch == '-' || ch == '@' || ch == '/' || ch == '_' || ch == '.' ||
-						ch == ':' || ch == '#' || ch == '%' || ch == 'π' || ch == '°' {
-					} else {
-						simple = false
-						break
-					}
-				}
-			}
-		}
 
-		if !simple {
+	writeString := func(buffer *strings.Builder, text string) string {
-			replace := []struct{ old, new string }{
+		if isQuotesNeeded(text) {
-				{old: "\\", new: `\\`},
-				{old: "\t", new: `\t`},
-				{old: "\r", new: `\r`},
-				{old: "\n", new: `\n`},
-				{old: "\"", new: `\"`},
-			}
-			for _, s := range replace {
-				text = strings.Replace(text, s.old, s.new, -1)
-			}
 			buffer.WriteRune('"')
-			buffer.WriteString(text)
+			buffer.WriteString(replaceEscapeSymbols(text))
 			buffer.WriteRune('"')
 		} else {
 			buffer.WriteString(text)
 		}
+		return text
 	}
 
 	switch value := value.(type) {
 	case string:
-		writeString(value)
+		if tag == Text || tag == Title || tag == Summary || isQuotesNeeded(value) {
+			return `"` + replaceEscapeSymbols(value) + `"`
+		}
+		return value
 
 	case []string:
 		if len(value) == 0 {
-			buffer.WriteString("[]")
+			return "[]"
-		} else {
-			size := 0
-			for _, text := range value {
-				size += len(text) + 2
-			}
-
-			if size < 80 {
-				lead := "["
-				for _, text := range value {
-					buffer.WriteString(lead)
-					writeString(text)
-					lead = ", "
-				}
-			} else {
-				buffer.WriteString("[\n")
-				for _, text := range value {
-					buffer.WriteString(indent)
-					buffer.WriteRune('\t')
-					writeString(text)
-					buffer.WriteString(",\n")
-				}
-				buffer.WriteString(indent)
-			}
-			buffer.WriteRune(']')
 		}
 
+		size := 0
+		for _, text := range value {
+			size += len(text) + 2
+		}
+
+		buffer := allocStringBuilder()
+		defer freeStringBuilder(buffer)
+
+		if size < 80 {
+			lead := "["
+			for _, text := range value {
+				buffer.WriteString(lead)
+				writeString(buffer, text)
+				lead = ", "
+			}
+		} else {
+			buffer.WriteString("[\n")
+			for _, text := range value {
+				buffer.WriteString(indent)
+				buffer.WriteRune('\t')
+				writeString(buffer, text)
+				buffer.WriteString(",\n")
+			}
+			buffer.WriteString(indent)
+		}
+		buffer.WriteRune(']')
+		return buffer.String()
+
 	case bool:
 		if value {
-			buffer.WriteString("true")
+			return "true"
-		} else {
-			buffer.WriteString("false")
 		}
+		return "false"
 
 	case float32:
-		fmt.Fprintf(buffer, "%g", float64(value))
+		return fmt.Sprintf("%g", float64(value))
 
 	case float64:
-		fmt.Fprintf(buffer, "%g", value)
+		return fmt.Sprintf("%g", value)
 
 	case int:
 		if prop, ok := enumProperties[tag]; ok && value >= 0 && value < len(prop.values) {
-			buffer.WriteString(prop.values[value])
+			return prop.values[value]
-		} else {
-			buffer.WriteString(strconv.Itoa(value))
 		}
+		return strconv.Itoa(value)
 
 	case stringWriter:
+		buffer := allocStringBuilder()
+		defer freeStringBuilder(buffer)
 		value.writeString(buffer, indent+"\t")
+		return buffer.String()
+
+	case View:
+		buffer := allocStringBuilder()
+		defer freeStringBuilder(buffer)
+
+		writeViewStyle(value.Tag(), value, buffer, indent, value.excludeTags())
+		return buffer.String()
 
 	case fmt.Stringer:
-		writeString(value.String())
+		return value.String()
 
 	case []ShadowProperty:
-		switch len(value) {
+		size := len(value)
-		case 0:
+		if size == 0 {
-			// do nothing
+			return ""
+		}
 
+		buffer := allocStringBuilder()
+		defer freeStringBuilder(buffer)
+
+		switch len(value) {
 		case 1:
 			value[0].writeString(buffer, indent)
 
@@ -795,58 +694,73 @@ func writePropertyValue(buffer *strings.Builder, tag PropertyName, value any, in
 			buffer.WriteString(indent)
 			buffer.WriteRune(']')
 		}
+		return buffer.String()
 
 	case []View:
-		switch len(value) {
+		size := len(value)
-		case 0:
+		if size == 0 {
-			buffer.WriteString("[]")
+			return "[]"
+		}
 
-		case 1:
+		buffer := allocStringBuilder()
+		defer freeStringBuilder(buffer)
+
+		if size == 1 {
 			writeViewStyle(value[0].Tag(), value[0], buffer, indent, value[0].excludeTags())
-
+		} else {
-		default:
 			buffer.WriteString("[\n")
 			indent2 := indent + "\t"
-			for _, v := range value {
+			for _, view := range value {
 				buffer.WriteString(indent2)
-				writeViewStyle(v.Tag(), v, buffer, indent2, v.excludeTags())
+				writeViewStyle(view.Tag(), view, buffer, indent2, view.excludeTags())
 				buffer.WriteString(",\n")
 			}
 
 			buffer.WriteString(indent)
 			buffer.WriteRune(']')
 		}
+		return buffer.String()
 
 	case []any:
-		switch count := len(value); count {
+		size := len(value)
-		case 0:
+		if size == 0 {
-			buffer.WriteString("[]")
+			return "[]"
+		}
 
-		case 1:
+		buffer := allocStringBuilder()
-			writePropertyValue(buffer, tag, value[0], indent)
+		defer freeStringBuilder(buffer)
 
-		default:
+		if size == 1 {
+			return propertyValueToString(tag, value[0], indent)
+		} else {
 			buffer.WriteString("[ ")
 			comma := false
 			for _, v := range value {
-				if comma {
+				text := propertyValueToString(tag, v, indent)
-					buffer.WriteString(", ")
+				if text != "" {
+					if comma {
+						buffer.WriteString(", ")
+					}
+					buffer.WriteString(text)
+					comma = true
 				}
-				writePropertyValue(buffer, tag, v, indent)
-				comma = true
 			}
 			buffer.WriteString(" ]")
 		}
+		return buffer.String()
 
 	case []BackgroundElement:
-		switch len(value) {
+		size := len(value)
-		case 0:
+		if size == 0 {
-			buffer.WriteString("[]\n")
+			return "[]"
+		}
 
-		case 1:
+		buffer := allocStringBuilder()
+		defer freeStringBuilder(buffer)
+
+		if size == 1 {
 			value[0].writeString(buffer, indent)
-
+		} else {
-		default:
 			buffer.WriteString("[\n")
 			indent2 := indent + "\t"
 			for _, element := range value {
@@ -858,8 +772,12 @@ func writePropertyValue(buffer *strings.Builder, tag PropertyName, value any, in
 			buffer.WriteString(indent)
 			buffer.WriteRune(']')
 		}
+		return buffer.String()
 
 	case []BackgroundGradientPoint:
+		buffer := allocStringBuilder()
+		defer freeStringBuilder(buffer)
+
 		buffer.WriteRune('"')
 		for i, point := range value {
 			if i > 0 {
@@ -868,8 +786,12 @@ func writePropertyValue(buffer *strings.Builder, tag PropertyName, value any, in
 			buffer.WriteString(point.String())
 		}
 		buffer.WriteRune('"')
+		return buffer.String()
 
 	case []BackgroundGradientAngle:
+		buffer := allocStringBuilder()
+		defer freeStringBuilder(buffer)
+
 		buffer.WriteRune('"')
 		for i, point := range value {
 			if i > 0 {
@@ -878,19 +800,23 @@ func writePropertyValue(buffer *strings.Builder, tag PropertyName, value any, in
 			buffer.WriteString(point.String())
 		}
 		buffer.WriteRune('"')
+		return buffer.String()
 
 	case map[PropertyName]AnimationProperty:
-		switch count := len(value); count {
+		size := len(value)
-		case 0:
+		if size == 0 {
-			buffer.WriteString("[]")
+			return "[]"
+		}
 
-		case 1:
+		buffer := allocStringBuilder()
+		defer freeStringBuilder(buffer)
+
+		if size == 1 {
 			for tag, animation := range value {
 				animation.writeTransitionString(tag, buffer)
 				break
 			}
-
+		} else {
-		default:
 			tags := make([]PropertyName, 0, len(value))
 			for tag := range value {
 				tags = append(tags, tag)
@@ -908,121 +834,171 @@ func writePropertyValue(buffer *strings.Builder, tag PropertyName, value any, in
 			buffer.WriteString(indent)
 			buffer.WriteRune(']')
 		}
+		return buffer.String()
 
 	case []AnimationProperty:
-		switch count := len(value); count {
+		size := len(value)
-		case 0:
+		if size == 0 {
-			buffer.WriteString("[]")
+			return "[]"
-
-		default:
-			buffer.WriteString("[\n")
-			indent2 := indent + "\t"
-			for _, anim := range value {
-				if anim != nil {
-					anim.writeAnimationString(Animation, buffer, indent2)
-				}
-			}
-			buffer.WriteString(indent)
-			buffer.WriteRune(']')
 		}
 
+		buffer := allocStringBuilder()
+		defer freeStringBuilder(buffer)
+
+		buffer.WriteString("[\n")
+		indent2 := indent + "\t"
+		for _, anim := range value {
+			if anim != nil {
+				anim.writeAnimationString(Animation, buffer, indent2)
+			}
+		}
+		buffer.WriteString(indent)
+		buffer.WriteRune(']')
+
+		return buffer.String()
+
 	case []noArgListener[View]:
-		buffer.WriteString(getNoArgBinding(value))
+		return getNoArgBinding(value)
 
 	case []noArgListener[ImageView]:
-		buffer.WriteString(getNoArgBinding(value))
+		return getNoArgBinding(value)
 
 	case []noArgListener[MediaPlayer]:
-		buffer.WriteString(getNoArgBinding(value))
+		return getNoArgBinding(value)
 
 	case []oneArgListener[View, KeyEvent]:
-		buffer.WriteString(getOneArgBinding(value))
+		return getOneArgBinding(value)
 
 	case []oneArgListener[View, MouseEvent]:
-		buffer.WriteString(getOneArgBinding(value))
+		return getOneArgBinding(value)
 
 	case []oneArgListener[View, TouchEvent]:
-		buffer.WriteString(getOneArgBinding(value))
+		return getOneArgBinding(value)
 
 	case []oneArgListener[View, PointerEvent]:
-		buffer.WriteString(getOneArgBinding(value))
+		return getOneArgBinding(value)
 
 	case []oneArgListener[View, PropertyName]:
-		buffer.WriteString(getOneArgBinding(value))
+		return getOneArgBinding(value)
 
 	case []oneArgListener[View, string]:
-		buffer.WriteString(getOneArgBinding(value))
+		return getOneArgBinding(value)
 
 	case []oneArgListener[View, Frame]:
-		buffer.WriteString(getOneArgBinding(value))
+		return getOneArgBinding(value)
 
 	case []oneArgListener[View, DragAndDropEvent]:
-		buffer.WriteString(getOneArgBinding(value))
+		return getOneArgBinding(value)
 
 	case []oneArgListener[Checkbox, bool]:
-		buffer.WriteString(getOneArgBinding(value))
+		return getOneArgBinding(value)
 
 	case []oneArgListener[FilePicker, []FileInfo]:
-		buffer.WriteString(getOneArgBinding(value))
+		return getOneArgBinding(value)
 
 	case []oneArgListener[ListView, int]:
-		buffer.WriteString(getOneArgBinding(value))
+		return getOneArgBinding(value)
 
 	case []oneArgListener[ListView, []int]:
-		buffer.WriteString(getOneArgBinding(value))
+		return getOneArgBinding(value)
 
 	case []oneArgListener[MediaPlayer, float64]:
-		buffer.WriteString(getOneArgBinding(value))
+		return getOneArgBinding(value)
 
 	case []oneArgListener[TableView, int]:
-		buffer.WriteString(getOneArgBinding(value))
+		return getOneArgBinding(value)
 
 	case []oneArgListener[TabsLayout, int]:
-		buffer.WriteString(getOneArgBinding(value))
+		return getOneArgBinding(value)
 
 	case []twoArgListener[ColorPicker, Color]:
-		buffer.WriteString(getTwoArgBinding(value))
+		return getTwoArgBinding(value)
 
 	case []twoArgListener[DatePicker, time.Time]:
-		buffer.WriteString(getTwoArgBinding(value))
+		return getTwoArgBinding(value)
 
 	case []twoArgListener[TimePicker, time.Time]:
-		buffer.WriteString(getTwoArgBinding(value))
+		return getTwoArgBinding(value)
 
 	case []twoArgListener[DropDownList, int]:
-		buffer.WriteString(getTwoArgBinding(value))
+		return getTwoArgBinding(value)
 
 	case []twoArgListener[EditView, string]:
-		buffer.WriteString(getTwoArgBinding(value))
+		return getTwoArgBinding(value)
 
 	case []twoArgListener[NumberPicker, float64]:
-		buffer.WriteString(getTwoArgBinding(value))
+		return getTwoArgBinding(value)
 
 	case []twoArgListener[TableView, int]:
-		buffer.WriteString(getTwoArgBinding(value))
+		return getTwoArgBinding(value)
 
 	case []twoArgListener[TabsLayout, int]:
-		buffer.WriteString(getTwoArgBinding(value))
+		return getTwoArgBinding(value)
 
 	case []mediaPlayerErrorListener:
-		buffer.WriteString(getMediaPlayerErrorListenerBinding(value))
+		return getMediaPlayerErrorListenerBinding(value)
+
+	case []popupListener:
+		return getPopupListenerBinding(value)
 
 	case map[PropertyName]oneArgListener[View, PropertyName]:
-		buffer.WriteString("_{")
+		if len(value) == 0 {
+			return ""
+		}
+
+		buffer := allocStringBuilder()
+		defer freeStringBuilder(buffer)
+
+		indent2 := indent + "\t"
+		buffer.WriteString("_{\n")
 		for key, listener := range value {
 			if text, ok := listener.rawListener().(string); ok && text != "" {
-				buffer.WriteRune('\n')
+				buffer.WriteString(indent2)
-				buffer.WriteString(indent)
+				writeString(buffer, string(key))
-				buffer.WriteRune('\t')
-				writeString(string(key))
 				buffer.WriteString(" = ")
-				writeString(text)
+				writeString(buffer, text)
-				buffer.WriteRune(',')
+				buffer.WriteString(",\n")
 			}
-			buffer.WriteRune('\n')
 			buffer.WriteString(indent)
 			buffer.WriteRune('}')
 		}
+		return buffer.String()
+
+	case []popupButton:
+		if len(value) == 0 {
+			return ""
+		}
+
+		buffer := allocStringBuilder()
+		defer freeStringBuilder(buffer)
+
+		lead := indent + "\t_{ title = "
+
+		buffer.WriteString("[\n")
+		for _, button := range value {
+			buffer.WriteString(lead)
+			writeString(buffer, button.title)
+			switch button.buttonType {
+			case CancelButton:
+				buffer.WriteString(`, type = cancel`)
+
+			case DefaultButton:
+				buffer.WriteString(`, type = default`)
+			}
+			if button.onClick != nil {
+				if text, ok := button.onClick.rawListener().(string); ok {
+					buffer.WriteString(`, click = `)
+					writeString(buffer, text)
+				}
+			}
+			buffer.WriteString(" },\n")
+		}
+		buffer.WriteString(indent)
+		buffer.WriteRune(']')
+		return buffer.String()
+
+	default:
+		return ""
 	}
 }
 
@@ -1033,11 +1009,12 @@ func writeViewStyle(name string, view Properties, buffer *strings.Builder, inden
 
 	writeProperty := func(tag PropertyName, value any) {
 		if !slices.Contains(excludeTags, tag) {
-			if supportedPropertyValue(value) {
+			text := propertyValueToString(tag, value, indent)
+			if text != "" {
 				buffer.WriteString(indent)
 				buffer.WriteString(string(tag))
 				buffer.WriteString(" = ")
-				writePropertyValue(buffer, tag, value, indent)
+				buffer.WriteString(text)
 				buffer.WriteString(",\n")
 			}
 		}