Calendar

A keyboard-navigable month grid for single-date selection.

Loading interactive demo…

func CalendarExample(weeks [][]string) *ui.Element {
	calendar := ui.NewCalendar().DefaultValue("2026-09-03")
	weekElements := make([]*ui.Element, 0, len(weeks))
	for index, week := range weeks {
		dayElements := make([]*ui.Element, 0, len(week))
		for _, day := range week {
			dayElements = append(dayElements, calendar.Day(day).Child(day))
		}
		weekElements = append(weekElements, calendar.Week(index).Children(dayElements))
	}
	return calendar.Root().Children(weekElements)
}

#Import

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

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

#Usage

func CalendarExample(weeks [][]string) *ui.Element {
	calendar := ui.NewCalendar().DefaultValue("2026-09-03")
	weekElements := make([]*ui.Element, 0, len(weeks))
	for index, week := range weeks {
		dayElements := make([]*ui.Element, 0, len(week))
		for _, day := range week {
			dayElements = append(dayElements, calendar.Day(day).Child(day))
		}
		weekElements = append(weekElements, calendar.Week(index).Children(dayElements))
	}
	return calendar.Root().Children(weekElements)
}

#Anatomy

calendar.Root
calendar.Week
calendar.Day

#API reference

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

`NewCalendar`

View source

ui.NewCalendar(props ...CalendarRootProps) *CalendarComponent

NewCalendar declares a Calendar 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

Valuefunc() *string—

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

func() *string

View source

DefaultValuestring—

Initial value for uncontrolled state. Use Value when the application should own subsequent changes.

string

View source

Minstring—

Lower bound of the accepted value.

string

View source

Maxstring—

Upper bound of the accepted value.

string

View source

OnValueChangefunc(*string, *native.Event)—

Reports an accepted value change. Use the callback payload to update controlled state.

func(*string, *native.Event)

View source

FirstWeekdayany—

First weekday column, where Monday is 0 and Sunday is 6.

any

View source

OnFocusChangefunc(string, *native.Event)—

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

func(string, *native.Event)

View source

OnMonthChangefunc(string, *native.Event)—

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

func(string, *native.Event)

View source

`Calendar.Disabled`

View source

calendar.Disabled(value any) *CalendarComponent

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

`Calendar.Value`

View source

calendar.Value(value any) *CalendarComponent

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

`Calendar.DefaultValue`

View source

calendar.DefaultValue(value string) *CalendarComponent

Initial value for uncontrolled state. Use Value when the application should own subsequent changes.

`Calendar.Min`

View source

calendar.Min(value string) *CalendarComponent

Lower bound of the accepted value.

`Calendar.Max`

View source

calendar.Max(value string) *CalendarComponent

Upper bound of the accepted value.

`Calendar.OnValueChange`

View source

calendar.OnValueChange(value func(*string, *native.Event)) *CalendarComponent

Reports an accepted value change. Use the callback payload to update controlled state.

`Calendar.FirstWeekday`

View source

calendar.FirstWeekday(value any) *CalendarComponent

First weekday column, where Monday is 0 and Sunday is 6.

`Calendar.OnFocusChange`

View source

calendar.OnFocusChange(value func(string, *native.Event)) *CalendarComponent

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

`Calendar.OnMonthChange`

View source

calendar.OnMonthChange(value func(string, *native.Event)) *CalendarComponent

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

`Calendar.Root`

View source

calendar.Root() *Element

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

`Calendar.Week`

View source

calendar.Week(value int, options ...CalendarWeekProps) *Element

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

`Calendar.WeekWith`

View source

calendar.WeekWith(props CalendarWeekProps) *Element

WeekWith supplies explicit properties for this part.

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

Index*int—

Zero-based index associated with this repeated part.

*int

View source

`Calendar.Day`

View source

calendar.Day(value string, options ...CalendarDayProps) *Element

Calendar date represented by this day cell.

`Calendar.DayWith`

View source

calendar.DayWith(props CalendarDayProps) *Element

DayWith supplies explicit properties for this part.

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

Daystring—

Calendar date represented by this day cell.

string

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