@motion-core/motion-gpu/dist/core/pointer.d.ts

Framework-agnostic WebGPU runtime for fullscreen WGSL shaders with explicit Svelte, React, and Vue adapter entrypoints.

import type { RenderMode } from './types.js';
/**
 * Pointer kind normalized from DOM `PointerEvent.pointerType`.
 */
export type PointerKind = 'mouse' | 'pen' | 'touch';
/**
 * 2D tuple used by pointer coordinate payloads.
 */
export type PointerVec2 = [number, number];
/**
 * Normalized pointer coordinates exposed to runtime hooks.
 */
export interface PointerPoint {
    /**
     * CSS pixel coordinates relative to canvas top-left corner.
     */
    px: PointerVec2;
    /**
     * UV coordinates in shader-friendly orientation (`y` grows upward).
     */
    uv: PointerVec2;
    /**
     * Normalized device coordinates (`-1..1`, `y` grows upward).
     */
    ndc: PointerVec2;
}
/**
 * Mutable pointer state snapshot exposed by `usePointer`.
 */
export interface PointerState extends PointerPoint {
    inside: boolean;
    pressed: boolean;
    dragging: boolean;
    pointerType: PointerKind | null;
    pointerId: number | null;
    button: number | null;
    buttons: number;
    time: number;
    downPx: PointerVec2 | null;
    downUv: PointerVec2 | null;
    deltaPx: PointerVec2;
    deltaUv: PointerVec2;
    velocityPx: PointerVec2;
    velocityUv: PointerVec2;
}
/**
 * Modifier key snapshot attached to pointer click events.
 */
export interface PointerModifiers {
    alt: boolean;
    ctrl: boolean;
    shift: boolean;
    meta: boolean;
}
/**
 * Click/tap payload produced by `usePointer`.
 */
export interface PointerClick extends PointerPoint {
    id: number;
    time: number;
    pointerType: PointerKind;
    pointerId: number;
    button: number;
    modifiers: PointerModifiers;
}
/**
 * Frame wake-up strategy for pointer-driven interactions.
 */
export type PointerFrameRequestMode = 'advance' | 'auto' | 'invalidate' | 'none';
/**
 * Returns a monotonic timestamp in seconds.
 */
export declare function getPointerNowSeconds(): number;
/**
 * Creates the initial pointer state snapshot.
 */
export declare function createInitialPointerState(): PointerState;
/**
 * Normalized coordinate payload for a pointer position against a canvas rect.
 */
export interface PointerCoordinates extends PointerPoint {
    inside: boolean;
}
/**
 * Converts client coordinates to canvas-relative pointer coordinates.
 */
export declare function getPointerCoordinates(clientX: number, clientY: number, rect: Pick<DOMRectReadOnly, 'height' | 'left' | 'top' | 'width'>): PointerCoordinates;
/**
 * Resolves frame wake-up strategy for pointer-driven updates.
 */
export declare function resolvePointerFrameRequestMode(mode: PointerFrameRequestMode, renderMode: RenderMode): Exclude<PointerFrameRequestMode, 'auto'>;
/**
 * Normalizes unknown pointer kind values to the public `PointerKind`.
 */
export declare function normalizePointerKind(pointerType: string): PointerKind;
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