PreviewCard

Shows a richer hover or focus preview beside a trigger without changing the current screen.

Loading interactive demo…

func PreviewCardExample() *ui.Element {
	card := ui.NewPreviewCard().Placement("bottom-start")
	return card.Root().Children(
		card.Trigger(ui.PreviewCardTriggerProps{Delay: 350}).Child("@ada"),
		card.Positioner().Child(
			card.Popup().Child("Ada Lovelace"),
		),
	)
}

#Import

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

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

#Usage

func PreviewCardExample() *ui.Element {
	card := ui.NewPreviewCard().Placement("bottom-start")
	return card.Root().Children(
		card.Trigger(ui.PreviewCardTriggerProps{Delay: 350}).Child("@ada"),
		card.Positioner().Child(
			card.Popup().Child("Ada Lovelace"),
		),
	)
}

#Anatomy

previewCard.Root
previewCard.Trigger
previewCard.Portal
previewCard.Backdrop
previewCard.Positioner
previewCard.Popup
previewCard.Arrow

#API reference

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

`NewPreviewCard`

View source

ui.NewPreviewCard(props ...PreviewCardRootProps) *PreviewCardComponent

NewPreviewCard declares a PreviewCard 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

Openfunc() bool—

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

func() bool

View source

DefaultOpenbool—

Initial visibility when the component owns its open state.

bool

View source

OnOpenChangefunc(bool, *native.Event)—

Reports a requested visibility change, including dismissal.

func(bool, *native.Event)

View source

Placementstring—

Requested native child-window placement.

string

View source

Gapany—

Space between adjacent children, in logical pixels.

any

View source

ViewportMarginany—

Minimum space reserved around the surface within the viewport.

any

View source

`PreviewCard.Disabled`

View source

previewCard.Disabled(value any) *PreviewCardComponent

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

`PreviewCard.Open`

View source

previewCard.Open(value any) *PreviewCardComponent

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

`PreviewCard.DefaultOpen`

View source

previewCard.DefaultOpen(value bool) *PreviewCardComponent

Initial visibility when the component owns its open state.

`PreviewCard.OnOpenChange`

View source

previewCard.OnOpenChange(value func(bool, *native.Event)) *PreviewCardComponent

Reports a requested visibility change, including dismissal.

`PreviewCard.Placement`

View source

previewCard.Placement(value string) *PreviewCardComponent

Requested native child-window placement.

`PreviewCard.Gap`

View source

previewCard.Gap(value any) *PreviewCardComponent

Space between adjacent children, in logical pixels.

`PreviewCard.ViewportMargin`

View source

previewCard.ViewportMargin(value any) *PreviewCardComponent

Minimum space reserved around the surface within the viewport.

`PreviewCard.Root`

View source

previewCard.Root() *Element

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

`PreviewCard.Trigger`

View source

previewCard.Trigger(options ...PreviewCardTriggerProps) *Element

Configures trigger 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

Delayany—

Core-owned delay in milliseconds before opening.

any

View source

CloseDelayany—

Core-owned delay in milliseconds before closing.

any

View source

`PreviewCard.Portal`

View source

previewCard.Portal(options ...PartProps) *Element

Configures portal 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

`PreviewCard.Positioner`

View source

previewCard.Positioner(options ...PartProps) *Element

Configures positioner 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

`PreviewCard.Popup`

View source

previewCard.Popup(options ...PartProps) *Element

Configures popup 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

`PreviewCard.Arrow`

View source

previewCard.Arrow(options ...PartProps) *Element

Configures arrow 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

`PreviewCard.Backdrop`

View source

previewCard.Backdrop(options ...PartProps) *Element

Configures backdrop 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