Put FieldBinder into its own file

components/input/field-binder.go

@@ -0,0 +1,169 @@
+package input
+
+import (
+	"fmt"
+	"strconv"
+)
+
+// FieldBinder is an interface that everything that every type that wants to bind to an input field must implement.
+type FieldBinder interface {
+	String() string         // String returns the bound variable formatted in the users/current locale.
+	SetString(string) error // SetString parses the string value in the users/current locale and sets the value of the bound variable.
+	HTMLInputType() string  // HTMLInputType returns the to be used type parameter for the HTML input element.
+}
+
+// FieldBindAny implements the FieldBinder interface for all basic types.
+type FieldBindAny struct{ Value any }
+
+func (f FieldBindAny) String() string {
+	switch v := f.Value.(type) {
+	case *string:
+		return *v
+	case *int:
+		return strconv.FormatInt(int64(*v), 10)
+	case *int8:
+		return strconv.FormatInt(int64(*v), 10)
+	case *int16:
+		return strconv.FormatInt(int64(*v), 10)
+	case *int32:
+		return strconv.FormatInt(int64(*v), 10)
+	case *int64:
+		return strconv.FormatInt(int64(*v), 10)
+	case *uint:
+		return strconv.FormatUint(uint64(*v), 10)
+	case *uint8:
+		return strconv.FormatUint(uint64(*v), 10)
+	case *uint16:
+		return strconv.FormatUint(uint64(*v), 10)
+	case *uint32:
+		return strconv.FormatUint(uint64(*v), 10)
+	case *uint64:
+		return strconv.FormatUint(uint64(*v), 10)
+	case *float32:
+		return strconv.FormatFloat(float64(*v), 'f', -1, 32) // TODO: Format number in current user's locale
+	case *float64:
+		return strconv.FormatFloat(float64(*v), 'f', -1, 64)
+	}
+
+	return ""
+}
+
+func (f FieldBindAny) SetString(value string) error {
+	switch v := f.Value.(type) {
+	case *string:
+		*v = value
+	case *int:
+		val, err := strconv.ParseInt(value, 10, 0)
+		if err != nil {
+			return err
+		}
+		*v = int(val)
+	case *int8:
+		val, err := strconv.ParseInt(value, 10, 8)
+		if err != nil {
+			return err
+		}
+		*v = int8(val)
+	case *int16:
+		val, err := strconv.ParseInt(value, 10, 16)
+		if err != nil {
+			return err
+		}
+		*v = int16(val)
+	case *int32:
+		val, err := strconv.ParseInt(value, 10, 32)
+		if err != nil {
+			return err
+		}
+		*v = int32(val)
+	case *int64:
+		val, err := strconv.ParseInt(value, 10, 64)
+		if err != nil {
+			return err
+		}
+		*v = int64(val)
+	case *uint:
+		val, err := strconv.ParseUint(value, 10, 0)
+		if err != nil {
+			return err
+		}
+		*v = uint(val)
+	case *uint8:
+		val, err := strconv.ParseUint(value, 10, 8)
+		if err != nil {
+			return err
+		}
+		*v = uint8(val)
+	case *uint16:
+		val, err := strconv.ParseUint(value, 10, 16)
+		if err != nil {
+			return err
+		}
+		*v = uint16(val)
+	case *uint32:
+		val, err := strconv.ParseUint(value, 10, 32)
+		if err != nil {
+			return err
+		}
+		*v = uint32(val)
+	case *uint64:
+		val, err := strconv.ParseUint(value, 10, 64)
+		if err != nil {
+			return err
+		}
+		*v = uint64(val)
+	case *float32:
+		val, err := strconv.ParseFloat(value, 32)
+		if err != nil {
+			return err
+		}
+		*v = float32(val)
+	case *float64:
+		val, err := strconv.ParseFloat(value, 64)
+		if err != nil {
+			return err
+		}
+		*v = float64(val)
+	default:
+		return fmt.Errorf("bound type %T is not supported", f.Value)
+	}
+
+	return nil
+}
+
+func (f FieldBindAny) HTMLInputType() string {
+	switch f.Value.(type) {
+	case *string:
+		return "text"
+	case *int, *int8, *int16, *int32, *int64, *uint, *uint8, *uint16, *uint32, *uint64:
+		return "number"
+	case *float32, *float64:
+		return "number"
+	}
+
+	return "text"
+}
+
+// FieldBindPassword implements the FieldBinder interface for strings.
+type FieldBindPassword struct{ Value *string }
+
+func (f FieldBindPassword) String() string {
+	if f.Value != nil {
+		return *f.Value
+	}
+
+	return ""
+}
+
+func (f FieldBindPassword) SetString(value string) error {
+	if f.Value != nil {
+		*f.Value = value
+		return nil
+	}
+
+	return fmt.Errorf("no value is bound to this component")
+}
+
+func (f FieldBindPassword) HTMLInputType() string {
+	return "password"
+}

components/input/field.go

@@ -1,13 +1,10 @@
 package input
 
 import (
-	"fmt"
-	"strconv"
-
 	"github.com/vugu/vugu"
 )
 
-// Field is a Any text or number based input component.
+// Field is a text or number based input component.
 // The HTML input type is determined by the bound data type.
 type Field struct {
 	AttrMap vugu.AttrMap
@@ -42,165 +39,3 @@ func (c *Field) handleChange(event vugu.DOMEvent) {
 		c.err = c.Bind.SetString(val)
 	}
 }
-
-type FieldBinder interface {
-	String() string         // String returns the bound variable formatted in the users/current locale.
-	SetString(string) error // SetString parses the string value in the users/current locale and sets the value of the bound variable.
-	HTMLInputType() string  // HTMLInputType returns the to be used type parameter for the HTML input element.
-}
-
-// FieldBindAny implements the FieldBinder interface for all basic types.
-type FieldBindAny struct{ Value any }
-
-func (f FieldBindAny) String() string {
-	switch v := f.Value.(type) {
-	case *string:
-		return *v
-	case *int:
-		return strconv.FormatInt(int64(*v), 10)
-	case *int8:
-		return strconv.FormatInt(int64(*v), 10)
-	case *int16:
-		return strconv.FormatInt(int64(*v), 10)
-	case *int32:
-		return strconv.FormatInt(int64(*v), 10)
-	case *int64:
-		return strconv.FormatInt(int64(*v), 10)
-	case *uint:
-		return strconv.FormatUint(uint64(*v), 10)
-	case *uint8:
-		return strconv.FormatUint(uint64(*v), 10)
-	case *uint16:
-		return strconv.FormatUint(uint64(*v), 10)
-	case *uint32:
-		return strconv.FormatUint(uint64(*v), 10)
-	case *uint64:
-		return strconv.FormatUint(uint64(*v), 10)
-	case *float32:
-		return strconv.FormatFloat(float64(*v), 'f', -1, 32) // TODO: Format number in current user's locale
-	case *float64:
-		return strconv.FormatFloat(float64(*v), 'f', -1, 64)
-	}
-
-	return ""
-}
-
-func (f FieldBindAny) SetString(value string) error {
-	switch v := f.Value.(type) {
-	case *string:
-		*v = value
-	case *int:
-		val, err := strconv.ParseInt(value, 10, 0)
-		if err != nil {
-			return err
-		}
-		*v = int(val)
-	case *int8:
-		val, err := strconv.ParseInt(value, 10, 8)
-		if err != nil {
-			return err
-		}
-		*v = int8(val)
-	case *int16:
-		val, err := strconv.ParseInt(value, 10, 16)
-		if err != nil {
-			return err
-		}
-		*v = int16(val)
-	case *int32:
-		val, err := strconv.ParseInt(value, 10, 32)
-		if err != nil {
-			return err
-		}
-		*v = int32(val)
-	case *int64:
-		val, err := strconv.ParseInt(value, 10, 64)
-		if err != nil {
-			return err
-		}
-		*v = int64(val)
-	case *uint:
-		val, err := strconv.ParseUint(value, 10, 0)
-		if err != nil {
-			return err
-		}
-		*v = uint(val)
-	case *uint8:
-		val, err := strconv.ParseUint(value, 10, 8)
-		if err != nil {
-			return err
-		}
-		*v = uint8(val)
-	case *uint16:
-		val, err := strconv.ParseUint(value, 10, 16)
-		if err != nil {
-			return err
-		}
-		*v = uint16(val)
-	case *uint32:
-		val, err := strconv.ParseUint(value, 10, 32)
-		if err != nil {
-			return err
-		}
-		*v = uint32(val)
-	case *uint64:
-		val, err := strconv.ParseUint(value, 10, 64)
-		if err != nil {
-			return err
-		}
-		*v = uint64(val)
-	case *float32:
-		val, err := strconv.ParseFloat(value, 32)
-		if err != nil {
-			return err
-		}
-		*v = float32(val)
-	case *float64:
-		val, err := strconv.ParseFloat(value, 64)
-		if err != nil {
-			return err
-		}
-		*v = float64(val)
-	default:
-		return fmt.Errorf("bound type %T is not supported", f.Value)
-	}
-
-	return nil
-}
-
-func (f FieldBindAny) HTMLInputType() string {
-	switch f.Value.(type) {
-	case *string:
-		return "text"
-	case *int, *int8, *int16, *int32, *int64, *uint, *uint8, *uint16, *uint32, *uint64:
-		return "number"
-	case *float32, *float64:
-		return "number"
-	}
-
-	return "text"
-}
-
-// FieldBindPassword implements the FieldBinder interface for strings.
-type FieldBindPassword struct{ Value *string }
-
-func (f FieldBindPassword) String() string {
-	if f.Value != nil {
-		return *f.Value
-	}
-
-	return ""
-}
-
-func (f FieldBindPassword) SetString(value string) error {
-	if f.Value != nil {
-		*f.Value = value
-		return nil
-	}
-
-	return fmt.Errorf("no value is bound to this component")
-}
-
-func (f FieldBindPassword) HTMLInputType() string {
-	return "password"
-}