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QuickGUI

Field

Connects one control to its label, description, validation state, and error message.

Loading interactive demo…

#Import

Import ui from github.com/egoist/quickgui/go/ui.

import (
	"github.com/egoist/quickgui/go/native"
	"github.com/egoist/quickgui/go/ui"
)

#Usage

func FieldExample() *ui.Element {
	email, setEmail := ui.CreateSignal("")
	field := ui.NewField(ui.FieldRootProps{Required: true, Filled: func() bool {
		return email() != ""
	}})
	return field.Root().Children(
		field.Label().Child("Email"),
		field.Control(ui.FieldControlProps{InputPartProps: ui.InputPartProps{Value: email, Placeholder: "you@example.com", OnInput: func(event *native.Event) {
			setEmail(event.Value)
		}}}),
		field.Description().Child("Used for receipts"),
		field.Error().Child("Enter a valid email address"),
	)
}

#Anatomy

  • field.Root
  • field.Item
  • field.Label
  • field.Control
  • field.Validity
  • field.Description
  • field.Error

#API reference

Expand an entry for its description and complete signature. A dash means no declaration default is documented.

NewField

View source
ui.NewField(props ...FieldRootProps) *FieldComponent

NewField declares a Field instance. Optional props provide initial settings.

Reffunc(*native.Node)—

Receives the retained native node after construction. Keep imperative work in event or lifecycle callbacks.

func(*native.Node)
View source
Styleany—

Reusable layout, typography, color, and interaction-state styles. Build with ui.Style() and compose with Merge.

any
View source
ChildrenPartChildren—

Content mounted inside the component. Compound child callbacks run after the parent context exists.

PartChildren
View source
Disabledany—

Prevents activation and exposes the disabled state to accessibility. Compound parts inherit a disabled root.

any
View source
Rolestring—

Accessibility role override. Prefer the component’s built-in semantics.

string
View source
FocusOnPointerany—

Whether a pointer press moves keyboard focus to the control.

any
View source
Groupany—

Names this element as a group for descendant interaction-state styling.

any
View source
AriaLabelany—

Accessible name, especially for icon-only controls or controls without a visible label.

any
View source
TabIndex*float64—

Controls sequential keyboard focus order. Omit to retain the component’s default focus behavior.

*float64
View source
OnClickfunc(*native.Event)—

Called after QuickGUI resolves an activation, including supported keyboard activation.

func(*native.Event)
View source
OnDoubleClickfunc(*native.Event)—

Callback for double click. The signature below lists the event payload.

func(*native.Event)
View source
OnContextMenufunc(*native.Event)—

Callback for context menu. The signature below lists the event payload.

func(*native.Event)
View source
OnPointerfunc(*native.Event)—

Callback for pointer. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseEnterfunc(*native.Event)—

Callback for mouse enter. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseLeavefunc(*native.Event)—

Callback for mouse leave. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseDownfunc(*native.Event)—

Callback for mouse down. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseUpfunc(*native.Event)—

Callback for mouse up. The signature below lists the event payload.

func(*native.Event)
View source
OnKeyDownfunc(*native.Event)—

Callback for key down. The signature below lists the event payload.

func(*native.Event)
View source
OnKeyUpfunc(*native.Event)—

Callback for key up. The signature below lists the event payload.

func(*native.Event)
View source
OnFocusfunc(*native.Event)—

Callback for focus. The signature below lists the event payload.

func(*native.Event)
View source
OnBlurfunc(*native.Event)—

Callback for blur. The signature below lists the event payload.

func(*native.Event)
View source
Invalidfunc() bool—

Projects invalid state to the field and its parts.

func() bool
View source
Requiredbool—

Marks the control as required for validation and accessibility.

bool
View source
Touchedfunc() bool—

Whether the user has interacted with the field.

func() bool
View source
Dirtyfunc() bool—

Whether the field value has changed from its initial value.

func() bool
View source
Filledfunc() bool—

Whether the associated control contains a value.

func() bool
View source
ValidationMessagefunc() string—

Bounded message exposed to error content and accessibility.

func() string
View source
ValidationModestring—

Selects which interaction boundary triggers validation.

string
View source
ValidationDebounceTimeany—

Delay before deferred validation runs after an edit.

any
View source
OnValidationChangefunc(FieldValidationDetails, *native.Event)—

Reports the validation trigger and timing selected by the core.

func(FieldValidationDetails, *native.Event)
View source

Field.Disabled

View source
field.Disabled(value any) *FieldComponent

Prevents activation and exposes the disabled state to accessibility. Compound parts inherit a disabled root.

Field.Invalid

View source
field.Invalid(value any) *FieldComponent

Projects invalid state to the field and its parts.

Field.Required

View source
field.Required(value bool) *FieldComponent

Marks the control as required for validation and accessibility.

Field.Touched

View source
field.Touched(value any) *FieldComponent

Whether the user has interacted with the field.

Field.Dirty

View source
field.Dirty(value any) *FieldComponent

Whether the field value has changed from its initial value.

Field.Filled

View source
field.Filled(value any) *FieldComponent

Whether the associated control contains a value.

Field.ValidationMessage

View source
field.ValidationMessage(value any) *FieldComponent

Bounded message exposed to error content and accessibility.

Field.ValidationMode

View source
field.ValidationMode(value string) *FieldComponent

Selects which interaction boundary triggers validation.

Field.ValidationDebounceTime

View source
field.ValidationDebounceTime(value any) *FieldComponent

Delay before deferred validation runs after an edit.

Field.OnValidationChange

View source
field.OnValidationChange(value func(FieldValidationDetails, *native.Event)) *FieldComponent

Reports the validation trigger and timing selected by the core.

Field.Root

View source
field.Root() *Element

Configures root for this part. The declared type and source define the accepted value.

Field.Label

View source
field.Label(options ...FieldLabelProps) *Element

Visible native SwiftUI control label.

Reffunc(*native.Node)—

Receives the retained native node after construction. Keep imperative work in event or lifecycle callbacks.

func(*native.Node)
View source
Styleany—

Reusable layout, typography, color, and interaction-state styles. Build with ui.Style() and compose with Merge.

any
View source
ChildrenPartChildren—

Content mounted inside the component. Compound child callbacks run after the parent context exists.

PartChildren
View source
Disabledany—

Prevents activation and exposes the disabled state to accessibility. Compound parts inherit a disabled root.

any
View source
Rolestring—

Accessibility role override. Prefer the component’s built-in semantics.

string
View source
FocusOnPointerany—

Whether a pointer press moves keyboard focus to the control.

any
View source
Groupany—

Names this element as a group for descendant interaction-state styling.

any
View source
AriaLabelany—

Accessible name, especially for icon-only controls or controls without a visible label.

any
View source
TabIndex*float64—

Controls sequential keyboard focus order. Omit to retain the component’s default focus behavior.

*float64
View source
OnClickfunc(*native.Event)—

Called after QuickGUI resolves an activation, including supported keyboard activation.

func(*native.Event)
View source
OnDoubleClickfunc(*native.Event)—

Callback for double click. The signature below lists the event payload.

func(*native.Event)
View source
OnContextMenufunc(*native.Event)—

Callback for context menu. The signature below lists the event payload.

func(*native.Event)
View source
OnPointerfunc(*native.Event)—

Callback for pointer. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseEnterfunc(*native.Event)—

Callback for mouse enter. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseLeavefunc(*native.Event)—

Callback for mouse leave. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseDownfunc(*native.Event)—

Callback for mouse down. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseUpfunc(*native.Event)—

Callback for mouse up. The signature below lists the event payload.

func(*native.Event)
View source
OnKeyDownfunc(*native.Event)—

Callback for key down. The signature below lists the event payload.

func(*native.Event)
View source
OnKeyUpfunc(*native.Event)—

Callback for key up. The signature below lists the event payload.

func(*native.Event)
View source
OnFocusfunc(*native.Event)—

Callback for focus. The signature below lists the event payload.

func(*native.Event)
View source
OnBlurfunc(*native.Event)—

Callback for blur. The signature below lists the event payload.

func(*native.Event)
View source
Passivebool—

Controls whether the surface is presented without activating its owner.

bool
View source

Field.Control

View source
field.Control(options ...FieldControlProps) *Element

Configures control for this part. The declared type and source define the accepted value.

Reffunc(*native.Node)—

Receives the retained native node after construction. Keep imperative work in event or lifecycle callbacks.

func(*native.Node)
View source
Styleany—

Reusable layout, typography, color, and interaction-state styles. Build with ui.Style() and compose with Merge.

any
View source
ChildrenPartChildren—

Content mounted inside the component. Compound child callbacks run after the parent context exists.

PartChildren
View source
Disabledany—

Prevents activation and exposes the disabled state to accessibility. Compound parts inherit a disabled root.

any
View source
Rolestring—

Accessibility role override. Prefer the component’s built-in semantics.

string
View source
FocusOnPointerany—

Whether a pointer press moves keyboard focus to the control.

any
View source
Groupany—

Names this element as a group for descendant interaction-state styling.

any
View source
AriaLabelany—

Accessible name, especially for icon-only controls or controls without a visible label.

any
View source
TabIndex*float64—

Controls sequential keyboard focus order. Omit to retain the component’s default focus behavior.

*float64
View source
OnClickfunc(*native.Event)—

Called after QuickGUI resolves an activation, including supported keyboard activation.

func(*native.Event)
View source
OnDoubleClickfunc(*native.Event)—

Callback for double click. The signature below lists the event payload.

func(*native.Event)
View source
OnContextMenufunc(*native.Event)—

Callback for context menu. The signature below lists the event payload.

func(*native.Event)
View source
OnPointerfunc(*native.Event)—

Callback for pointer. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseEnterfunc(*native.Event)—

Callback for mouse enter. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseLeavefunc(*native.Event)—

Callback for mouse leave. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseDownfunc(*native.Event)—

Callback for mouse down. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseUpfunc(*native.Event)—

Callback for mouse up. The signature below lists the event payload.

func(*native.Event)
View source
OnKeyDownfunc(*native.Event)—

Callback for key down. The signature below lists the event payload.

func(*native.Event)
View source
OnKeyUpfunc(*native.Event)—

Callback for key up. The signature below lists the event payload.

func(*native.Event)
View source
OnFocusfunc(*native.Event)—

Callback for focus. The signature below lists the event payload.

func(*native.Event)
View source
OnBlurfunc(*native.Event)—

Callback for blur. The signature below lists the event payload.

func(*native.Event)
View source
Typestring—

Input editing mode for this control.

string
View source
Valueany—

The current controlled value. Update application state from the change callback to accept a new value.

any
View source
Placeholderstring—

Hint displayed while the text value is empty.

string
View source
Multilinebool—

Allows multiple lines in the core text editor.

bool
View source
OnInputfunc(*native.Event)—

Receives edits from the text control. Write the new text into the controlled value.

func(*native.Event)
View source
OnChangefunc(*native.Event)—

Callback for change. The signature below lists the event payload.

func(*native.Event)
View source
OnSubmitfunc(*native.Event)—

Called when the control submits its current value.

func(*native.Event)
View source
ElementFieldControlElement—

Retained native element used by this component part.

FieldControlElement
View source

Field.Description

View source
field.Description(options ...PartProps) *Element

Configures description for this part. The declared type and source define the accepted value.

Reffunc(*native.Node)—

Receives the retained native node after construction. Keep imperative work in event or lifecycle callbacks.

func(*native.Node)
View source
Styleany—

Reusable layout, typography, color, and interaction-state styles. Build with ui.Style() and compose with Merge.

any
View source
ChildrenPartChildren—

Content mounted inside the component. Compound child callbacks run after the parent context exists.

PartChildren
View source
Disabledany—

Prevents activation and exposes the disabled state to accessibility. Compound parts inherit a disabled root.

any
View source
Rolestring—

Accessibility role override. Prefer the component’s built-in semantics.

string
View source
FocusOnPointerany—

Whether a pointer press moves keyboard focus to the control.

any
View source
Groupany—

Names this element as a group for descendant interaction-state styling.

any
View source
AriaLabelany—

Accessible name, especially for icon-only controls or controls without a visible label.

any
View source
TabIndex*float64—

Controls sequential keyboard focus order. Omit to retain the component’s default focus behavior.

*float64
View source
OnClickfunc(*native.Event)—

Called after QuickGUI resolves an activation, including supported keyboard activation.

func(*native.Event)
View source
OnDoubleClickfunc(*native.Event)—

Callback for double click. The signature below lists the event payload.

func(*native.Event)
View source
OnContextMenufunc(*native.Event)—

Callback for context menu. The signature below lists the event payload.

func(*native.Event)
View source
OnPointerfunc(*native.Event)—

Callback for pointer. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseEnterfunc(*native.Event)—

Callback for mouse enter. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseLeavefunc(*native.Event)—

Callback for mouse leave. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseDownfunc(*native.Event)—

Callback for mouse down. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseUpfunc(*native.Event)—

Callback for mouse up. The signature below lists the event payload.

func(*native.Event)
View source
OnKeyDownfunc(*native.Event)—

Callback for key down. The signature below lists the event payload.

func(*native.Event)
View source
OnKeyUpfunc(*native.Event)—

Callback for key up. The signature below lists the event payload.

func(*native.Event)
View source
OnFocusfunc(*native.Event)—

Callback for focus. The signature below lists the event payload.

func(*native.Event)
View source
OnBlurfunc(*native.Event)—

Callback for blur. The signature below lists the event payload.

func(*native.Event)
View source

Field.Item

View source
field.Item(options ...PartProps) *Element

Configures item for this part. The declared type and source define the accepted value.

Reffunc(*native.Node)—

Receives the retained native node after construction. Keep imperative work in event or lifecycle callbacks.

func(*native.Node)
View source
Styleany—

Reusable layout, typography, color, and interaction-state styles. Build with ui.Style() and compose with Merge.

any
View source
ChildrenPartChildren—

Content mounted inside the component. Compound child callbacks run after the parent context exists.

PartChildren
View source
Disabledany—

Prevents activation and exposes the disabled state to accessibility. Compound parts inherit a disabled root.

any
View source
Rolestring—

Accessibility role override. Prefer the component’s built-in semantics.

string
View source
FocusOnPointerany—

Whether a pointer press moves keyboard focus to the control.

any
View source
Groupany—

Names this element as a group for descendant interaction-state styling.

any
View source
AriaLabelany—

Accessible name, especially for icon-only controls or controls without a visible label.

any
View source
TabIndex*float64—

Controls sequential keyboard focus order. Omit to retain the component’s default focus behavior.

*float64
View source
OnClickfunc(*native.Event)—

Called after QuickGUI resolves an activation, including supported keyboard activation.

func(*native.Event)
View source
OnDoubleClickfunc(*native.Event)—

Callback for double click. The signature below lists the event payload.

func(*native.Event)
View source
OnContextMenufunc(*native.Event)—

Callback for context menu. The signature below lists the event payload.

func(*native.Event)
View source
OnPointerfunc(*native.Event)—

Callback for pointer. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseEnterfunc(*native.Event)—

Callback for mouse enter. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseLeavefunc(*native.Event)—

Callback for mouse leave. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseDownfunc(*native.Event)—

Callback for mouse down. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseUpfunc(*native.Event)—

Callback for mouse up. The signature below lists the event payload.

func(*native.Event)
View source
OnKeyDownfunc(*native.Event)—

Callback for key down. The signature below lists the event payload.

func(*native.Event)
View source
OnKeyUpfunc(*native.Event)—

Callback for key up. The signature below lists the event payload.

func(*native.Event)
View source
OnFocusfunc(*native.Event)—

Callback for focus. The signature below lists the event payload.

func(*native.Event)
View source
OnBlurfunc(*native.Event)—

Callback for blur. The signature below lists the event payload.

func(*native.Event)
View source

Field.Validity

View source
field.Validity(options ...FieldValidityProps) *Element

Configures validity for this part. The declared type and source define the accepted value.

Reffunc(*native.Node)—

Receives the retained native node after construction. Keep imperative work in event or lifecycle callbacks.

func(*native.Node)
View source
Styleany—

Reusable layout, typography, color, and interaction-state styles. Build with ui.Style() and compose with Merge.

any
View source
ChildrenPartChildren—

Content mounted inside the component. Compound child callbacks run after the parent context exists.

PartChildren
View source
Disabledany—

Prevents activation and exposes the disabled state to accessibility. Compound parts inherit a disabled root.

any
View source
Rolestring—

Accessibility role override. Prefer the component’s built-in semantics.

string
View source
FocusOnPointerany—

Whether a pointer press moves keyboard focus to the control.

any
View source
Groupany—

Names this element as a group for descendant interaction-state styling.

any
View source
AriaLabelany—

Accessible name, especially for icon-only controls or controls without a visible label.

any
View source
TabIndex*float64—

Controls sequential keyboard focus order. Omit to retain the component’s default focus behavior.

*float64
View source
OnClickfunc(*native.Event)—

Called after QuickGUI resolves an activation, including supported keyboard activation.

func(*native.Event)
View source
OnDoubleClickfunc(*native.Event)—

Callback for double click. The signature below lists the event payload.

func(*native.Event)
View source
OnContextMenufunc(*native.Event)—

Callback for context menu. The signature below lists the event payload.

func(*native.Event)
View source
OnPointerfunc(*native.Event)—

Callback for pointer. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseEnterfunc(*native.Event)—

Callback for mouse enter. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseLeavefunc(*native.Event)—

Callback for mouse leave. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseDownfunc(*native.Event)—

Callback for mouse down. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseUpfunc(*native.Event)—

Callback for mouse up. The signature below lists the event payload.

func(*native.Event)
View source
OnKeyDownfunc(*native.Event)—

Callback for key down. The signature below lists the event payload.

func(*native.Event)
View source
OnKeyUpfunc(*native.Event)—

Callback for key up. The signature below lists the event payload.

func(*native.Event)
View source
OnFocusfunc(*native.Event)—

Callback for focus. The signature below lists the event payload.

func(*native.Event)
View source
OnBlurfunc(*native.Event)—

Callback for blur. The signature below lists the event payload.

func(*native.Event)
View source
Visible*bool—

Whether the component is presented.

*bool
View source

Field.Error

View source
field.Error(options ...PartProps) *Element

Configures error for this part. The declared type and source define the accepted value.

Reffunc(*native.Node)—

Receives the retained native node after construction. Keep imperative work in event or lifecycle callbacks.

func(*native.Node)
View source
Styleany—

Reusable layout, typography, color, and interaction-state styles. Build with ui.Style() and compose with Merge.

any
View source
ChildrenPartChildren—

Content mounted inside the component. Compound child callbacks run after the parent context exists.

PartChildren
View source
Disabledany—

Prevents activation and exposes the disabled state to accessibility. Compound parts inherit a disabled root.

any
View source
Rolestring—

Accessibility role override. Prefer the component’s built-in semantics.

string
View source
FocusOnPointerany—

Whether a pointer press moves keyboard focus to the control.

any
View source
Groupany—

Names this element as a group for descendant interaction-state styling.

any
View source
AriaLabelany—

Accessible name, especially for icon-only controls or controls without a visible label.

any
View source
TabIndex*float64—

Controls sequential keyboard focus order. Omit to retain the component’s default focus behavior.

*float64
View source
OnClickfunc(*native.Event)—

Called after QuickGUI resolves an activation, including supported keyboard activation.

func(*native.Event)
View source
OnDoubleClickfunc(*native.Event)—

Callback for double click. The signature below lists the event payload.

func(*native.Event)
View source
OnContextMenufunc(*native.Event)—

Callback for context menu. The signature below lists the event payload.

func(*native.Event)
View source
OnPointerfunc(*native.Event)—

Callback for pointer. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseEnterfunc(*native.Event)—

Callback for mouse enter. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseLeavefunc(*native.Event)—

Callback for mouse leave. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseDownfunc(*native.Event)—

Callback for mouse down. The signature below lists the event payload.

func(*native.Event)
View source
OnMouseUpfunc(*native.Event)—

Callback for mouse up. The signature below lists the event payload.

func(*native.Event)
View source
OnKeyDownfunc(*native.Event)—

Callback for key down. The signature below lists the event payload.

func(*native.Event)
View source
OnKeyUpfunc(*native.Event)—

Callback for key up. The signature below lists the event payload.

func(*native.Event)
View source
OnFocusfunc(*native.Event)—

Callback for focus. The signature below lists the event payload.

func(*native.Event)
View source
OnBlurfunc(*native.Event)—

Callback for blur. The signature below lists the event payload.

func(*native.Event)
View source

Element

View source
part.Child(content).Style(style)

Every part returns a fluent element. Strings, numbers, elements, and deferred child factories compose directly.

ChildChild(child any) *Element—

Child appends content and returns this element. Content can be an element, native node, scalar, accessor, or node-returning construction callback. 

Child(child any) *Element
View source
ChildrenChildren(children ...any) *Element—

Children appends multiple children in order without replacing existing content. It also accepts []any, []*Element, and []*native.Node slices as arguments. Read the retained child nodes through element.Node.Children. 

Children(children ...any) *Element
View source
StyleStyle(style StyleBuilder) *Element—

Style merges a reusable style. Scalar accessors retain independent native bindings. 

Style(style StyleBuilder) *Element
View source
OnClickOnClick(handler func()) *Element—

OnClick handles a click without an unused event parameter. 

OnClick(handler func()) *Element
View source
RefRef(handler func(*native.Node)) *Element—

Ref exposes the native handle once at this point in the declaration chain. 

Ref(handler func(*native.Node)) *Element
View source