CheckboxGroup

管理一组有限的复选框值，并可派生出可选的父复选框状态。

正在加载交互演示…

func CheckboxGroupExample() *ui.Element {
	values, setValues := ui.CreateSignal([]string{"email"})
	group := ui.NewCheckboxGroup(ui.CheckboxGroupProps{AllValues: []string{"email", "push"}, Value: values, OnValueChange: func(next []string, _ *native.Event) {
		setValues(next)
	}})
	all := ui.NewCheckbox().Parent(true)
	email := ui.NewCheckbox().Value("email")
	push := ui.NewCheckbox().Value("push")
	return group.Root().Children(
		all.Root().Child("All notifications"),
		email.Root().Child("Email"),
		push.Root().Child("Push"),
	)
}

#导入

从 github.com/egoist/quickgui/go/ui 导入 ui。

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

#用法

func CheckboxGroupExample() *ui.Element {
	values, setValues := ui.CreateSignal([]string{"email"})
	group := ui.NewCheckboxGroup(ui.CheckboxGroupProps{AllValues: []string{"email", "push"}, Value: values, OnValueChange: func(next []string, _ *native.Event) {
		setValues(next)
	}})
	all := ui.NewCheckbox().Parent(true)
	email := ui.NewCheckbox().Value("email")
	push := ui.NewCheckbox().Value("push")
	return group.Root().Children(
		all.Root().Child("All notifications"),
		email.Root().Child("Email"),
		push.Root().Child("Push"),
	)
}

#结构

checkboxGroup.Root

#API 参考

展开条目查看说明和完整签名。短横线表示声明中未记录默认值。

`NewCheckboxGroup`

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ui.NewCheckboxGroup(props ...CheckboxGroupProps) *CheckboxGroupComponent

NewCheckboxGroup declares a CheckboxGroup 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)

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Styleany—

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

any

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ChildrenPartChildren—

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

PartChildren

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Disabledany—

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

any

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Rolestring—

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

string

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FocusOnPointerany—

Whether a pointer press moves keyboard focus to the control.

any

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Groupany—

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

any

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AriaLabelany—

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

any

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TabIndex*float64—

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

*float64

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OnClickfunc(*native.Event)—

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

func(*native.Event)

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OnDoubleClickfunc(*native.Event)—

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

func(*native.Event)

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OnContextMenufunc(*native.Event)—

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

func(*native.Event)

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OnPointerfunc(*native.Event)—

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

func(*native.Event)

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OnMouseEnterfunc(*native.Event)—

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

func(*native.Event)

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OnMouseLeavefunc(*native.Event)—

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

func(*native.Event)

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OnMouseDownfunc(*native.Event)—

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

func(*native.Event)

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OnMouseUpfunc(*native.Event)—

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

func(*native.Event)

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OnKeyDownfunc(*native.Event)—

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

func(*native.Event)

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OnKeyUpfunc(*native.Event)—

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

func(*native.Event)

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OnFocusfunc(*native.Event)—

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

func(*native.Event)

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OnBlurfunc(*native.Event)—

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

func(*native.Event)

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Valuefunc() []string—

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

func() []string

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DefaultValue[]string—

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

[]string

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OnValueChangefunc([]string, *native.Event)—

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

func([]string, *native.Event)

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AllValues[]string—

Complete ordered value universe used to derive a parent checkbox state.

[]string

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`CheckboxGroup.Disabled`

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checkboxGroup.Disabled(value any) *CheckboxGroupComponent

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

`CheckboxGroup.Value`

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checkboxGroup.Value(value any) *CheckboxGroupComponent

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

`CheckboxGroup.DefaultValue`

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checkboxGroup.DefaultValue(value []string) *CheckboxGroupComponent

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

`CheckboxGroup.OnValueChange`

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checkboxGroup.OnValueChange(value func([]string, *native.Event)) *CheckboxGroupComponent

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

`CheckboxGroup.AllValues`

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checkboxGroup.AllValues(value []string) *CheckboxGroupComponent

Complete ordered value universe used to derive a parent checkbox state.

`CheckboxGroup.Root`

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checkboxGroup.Root() *Element

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

`Element`

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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

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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

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StyleStyle(style StyleBuilder) *Element—

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

Style(style StyleBuilder) *Element

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OnClickOnClick(handler func()) *Element—

OnClick handles a click without an unused event parameter.

OnClick(handler func()) *Element

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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

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