Splitter

Creates resizable panes with pointer and keyboard-operated handles.

Loading interactive demo…

func SplitterExample() *ui.Element {
	splitter := ui.NewSplitter().
		DefaultValue([]float64{240, 400}).
		Panes([]ui.SplitterPaneDeclaration{{}, {}})
	return splitter.Root().Display("flex").Height(240).Children(
		splitter.Pane(0).Child("Sidebar"),
		splitter.Handle(0).Width(6).Cursor("col-resize"),
		splitter.Pane(1).Child("Content"),
	)
}

#Import

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

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

#Usage

func SplitterExample() *ui.Element {
	splitter := ui.NewSplitter().
		DefaultValue([]float64{240, 400}).
		Panes([]ui.SplitterPaneDeclaration{{}, {}})
	return splitter.Root().Display("flex").Height(240).Children(
		splitter.Pane(0).Child("Sidebar"),
		splitter.Handle(0).Width(6).Cursor("col-resize"),
		splitter.Pane(1).Child("Content"),
	)
}

#Anatomy

splitter.Root
splitter.Pane
splitter.Handle

#API reference

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

`NewSplitter`

View source

ui.NewSplitter(props ...SplitterRootProps) *SplitterComponent

NewSplitter declares a Splitter 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() []float64—

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

func() []float64

View source

DefaultValue[]float64—

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

[]float64

View source

Panes[]SplitterPaneDeclaration—

Per-pane minimum size and collapse declarations.

[]SplitterPaneDeclaration

View source

Stepany—

Increment applied by pointer, keyboard, or step controls.

any

View source

Orientationstring—

Direction used for layout and keyboard navigation.

string

View source

OnSizesChangefunc([]float64, *native.Event)—

Reports the complete pane-size set after the core resizes it.

func([]float64, *native.Event)

View source

`Splitter.Disabled`

View source

splitter.Disabled(value any) *SplitterComponent

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

`Splitter.Value`

View source

splitter.Value(value any) *SplitterComponent

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

`Splitter.DefaultValue`

View source

splitter.DefaultValue(value []float64) *SplitterComponent

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

`Splitter.Panes`

View source

splitter.Panes(value []SplitterPaneDeclaration) *SplitterComponent

Per-pane minimum size and collapse declarations.

`Splitter.Step`

View source

splitter.Step(value any) *SplitterComponent

Increment applied by pointer, keyboard, or step controls.

`Splitter.Orientation`

View source

splitter.Orientation(value string) *SplitterComponent

Direction used for layout and keyboard navigation.

`Splitter.OnSizesChange`

View source

splitter.OnSizesChange(value func([]float64, *native.Event)) *SplitterComponent

Reports the complete pane-size set after the core resizes it.

`Splitter.Root`

View source

splitter.Root() *Element

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

`Splitter.Pane`

View source

splitter.Pane(value int, options ...SplitterPaneProps) *Element

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

`Splitter.PaneWith`

View source

splitter.PaneWith(props SplitterPaneProps) *Element

PaneWith 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

`Splitter.Handle`

View source

splitter.Handle(value int, options ...SplitterPaneProps) *Element

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

`Splitter.HandleWith`

View source

splitter.HandleWith(props SplitterPaneProps) *Element

HandleWith 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

`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