Menubar

管理窗口内的水平菜单栏及其菜单项。

正在加载交互演示…

func MenubarExample() *ui.Element {
	menubar := ui.NewMenubar().Count(2)
	items := make([]*ui.Element, 0, 2)
	for index, label := range []string{"File", "Edit"} {
		items = append(items, menubar.Item(ui.MenubarItemProps{Index: &index}).Child(label))
	}
	return menubar.Root().Children(items)
}

#导入

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

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

#用法

func MenubarExample() *ui.Element {
	menubar := ui.NewMenubar().Count(2)
	items := make([]*ui.Element, 0, 2)
	for index, label := range []string{"File", "Edit"} {
		items = append(items, menubar.Item(ui.MenubarItemProps{Index: &index}).Child(label))
	}
	return menubar.Root().Children(items)
}

#结构

menubar.Root
menubar.Item

#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。

`NewMenubar`

查看源码

ui.NewMenubar(props ...MenubarRootProps) *MenubarComponent

NewMenubar declares a Menubar 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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Countany—

Number of declared menubar items.

any

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Openfunc() *int—

Controlled visibility of the panel or overlay. Pair with the open-change callback.

func() *int

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DefaultOpen*int—

Initial visibility when the component owns its open state.

*int

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OnOpenChangefunc(*int, *native.Event)—

Reports a requested visibility change, including dismissal.

func(*int, *native.Event)

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OnActiveChangefunc(int, *native.Event)—

Reports the item that now owns the roving focus state.

func(int, *native.Event)

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`Menubar.Disabled`

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menubar.Disabled(value any) *MenubarComponent

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

`Menubar.Count`

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menubar.Count(value any) *MenubarComponent

Number of declared menubar items.

`Menubar.Open`

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menubar.Open(value any) *MenubarComponent

Controlled visibility of the panel or overlay. Pair with the open-change callback.

`Menubar.DefaultOpen`

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menubar.DefaultOpen(value int) *MenubarComponent

Initial visibility when the component owns its open state.

`Menubar.OnOpenChange`

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menubar.OnOpenChange(value func(*int, *native.Event)) *MenubarComponent

Reports a requested visibility change, including dismissal.

`Menubar.OnActiveChange`

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menubar.OnActiveChange(value func(int, *native.Event)) *MenubarComponent

Reports the item that now owns the roving focus state.

`Menubar.Root`

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menubar.Root() *Element

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

`Menubar.Item`

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menubar.Item(options ...MenubarItemProps) *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)

查看源码

Styleany—

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

any

查看源码

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

查看源码

Rolestring—

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

string

查看源码

FocusOnPointerany—

Whether a pointer press moves keyboard focus to the control.

any

查看源码

Groupany—

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

any

查看源码

AriaLabelany—

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

any

查看源码

TabIndex*float64—

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

*float64

查看源码

OnClickfunc(*native.Event)—

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

func(*native.Event)

查看源码

OnDoubleClickfunc(*native.Event)—

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

func(*native.Event)

查看源码

OnContextMenufunc(*native.Event)—

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

func(*native.Event)

查看源码

OnPointerfunc(*native.Event)—

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

func(*native.Event)

查看源码

OnMouseEnterfunc(*native.Event)—

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

func(*native.Event)

查看源码

OnMouseLeavefunc(*native.Event)—

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

func(*native.Event)

查看源码

OnMouseDownfunc(*native.Event)—

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

func(*native.Event)

查看源码

OnMouseUpfunc(*native.Event)—

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

func(*native.Event)

查看源码

OnKeyDownfunc(*native.Event)—

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

func(*native.Event)

查看源码

OnKeyUpfunc(*native.Event)—

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

func(*native.Event)

查看源码

OnFocusfunc(*native.Event)—

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

func(*native.Event)

查看源码

OnBlurfunc(*native.Event)—

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

func(*native.Event)

查看源码

Index*int—

Zero-based index associated with this repeated part.

*int

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`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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