Module interaction 

Mouse interaction for GUI widgets.

Tracks widget hit regions and maps mouse drags to parameter value changes.

Structs

DragState

DropdownState

State for an open dropdown popup.

InteractionState

Tracks the current mouse / touch interaction state.

Modifiers

Keyboard modifier state at event time.

PopupDrag

Active touch-drag on the open dropdown popup.

WidgetRegion

A widget’s hit region on screen.

Enums

InputEvent

Platform-agnostic input event consumed by dispatch.

MouseButton

Which mouse button triggered an event.

ParamEdit

A requested edit to a host parameter, emitted by dispatch.

Constants

SINGLE_POINTER

Single-pointer sentinel for mouse-driven flows. iOS touch dispatch substitutes the UITouch* cast to u64 so multiple fingers can drag independently.

Functions

dispatch

Route a batch of input events through the widget tree, updating state in place (hover, drag origins, dropdown open/closed, …) and returning the sequence of parameter edits they imply.

dispatch_in

Like dispatch but takes explicit window_size in the same coordinate space as the layout - i.e. the size of the surface the layout is being composited onto.