lume
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JavaScript
// TODO FlingRotation's interaction and tree structure are horribly coupled.
// Instead we can implement DragFling, similar to ScrollFling and PinchFling,
// and use that for rotation. Then if we even keep FlingRotation, we can just
// have it accept a single element to rotate, and it would apply DragFling (or
// whichever fling is provided, easy to compose things).
var __esDecorate = (this && this.__esDecorate) || function (ctor, descriptorIn, decorators, contextIn, initializers, extraInitializers) {
function accept(f) { if (f !== void 0 && typeof f !== "function") throw new TypeError("Function expected"); return f; }
var kind = contextIn.kind, key = kind === "getter" ? "get" : kind === "setter" ? "set" : "value";
var target = !descriptorIn && ctor ? contextIn["static"] ? ctor : ctor.prototype : null;
var descriptor = descriptorIn || (target ? Object.getOwnPropertyDescriptor(target, contextIn.name) : {});
var _, done = false;
for (var i = decorators.length - 1; i >= 0; i--) {
var context = {};
for (var p in contextIn) context[p] = p === "access" ? {} : contextIn[p];
for (var p in contextIn.access) context.access[p] = contextIn.access[p];
context.addInitializer = function (f) { if (done) throw new TypeError("Cannot add initializers after decoration has completed"); extraInitializers.push(accept(f || null)); };
var result = (0, decorators[i])(kind === "accessor" ? { get: descriptor.get, set: descriptor.set } : descriptor[key], context);
if (kind === "accessor") {
if (result === void 0) continue;
if (result === null || typeof result !== "object") throw new TypeError("Object expected");
if (_ = accept(result.get)) descriptor.get = _;
if (_ = accept(result.set)) descriptor.set = _;
if (_ = accept(result.init)) initializers.unshift(_);
}
else if (_ = accept(result)) {
if (kind === "field") initializers.unshift(_);
else descriptor[key] = _;
}
}
if (target) Object.defineProperty(target, contextIn.name, descriptor);
done = true;
};
var __runInitializers = (this && this.__runInitializers) || function (thisArg, initializers, value) {
var useValue = arguments.length > 2;
for (var i = 0; i < initializers.length; i++) {
value = useValue ? initializers[i].call(thisArg, value) : initializers[i].call(thisArg);
}
return useValue ? value : void 0;
};
import { Effects, reactive, signal } from 'classy-solid';
import { onCleanup } from 'solid-js';
import { clamp } from '../math/clamp.js';
let FlingRotation = (() => {
let _classDecorators = [reactive];
let _classDescriptor;
let _classExtraInitializers = [];
let _classThis;
let _classSuper = Effects;
let _rotationYTarget_decorators;
let _rotationYTarget_initializers = [];
let _rotationYTarget_extraInitializers = [];
let _rotationXTarget_decorators;
let _rotationXTarget_initializers = [];
let _rotationXTarget_extraInitializers = [];
let _interactionInitiator_decorators;
let _interactionInitiator_initializers = [];
let _interactionInitiator_extraInitializers = [];
let _interactionContainer_decorators;
let _interactionContainer_initializers = [];
let _interactionContainer_extraInitializers = [];
var FlingRotation = class extends _classSuper {
static { _classThis = this; }
static {
const _metadata = typeof Symbol === "function" && Symbol.metadata ? Object.create(_classSuper[Symbol.metadata] ?? null) : void 0;
_rotationYTarget_decorators = [signal];
_rotationXTarget_decorators = [signal];
_interactionInitiator_decorators = [signal];
_interactionContainer_decorators = [signal];
__esDecorate(null, null, _rotationYTarget_decorators, { kind: "field", name: "rotationYTarget", static: false, private: false, access: { has: obj => "rotationYTarget" in obj, get: obj => obj.rotationYTarget, set: (obj, value) => { obj.rotationYTarget = value; } }, metadata: _metadata }, _rotationYTarget_initializers, _rotationYTarget_extraInitializers);
__esDecorate(null, null, _rotationXTarget_decorators, { kind: "field", name: "rotationXTarget", static: false, private: false, access: { has: obj => "rotationXTarget" in obj, get: obj => obj.rotationXTarget, set: (obj, value) => { obj.rotationXTarget = value; } }, metadata: _metadata }, _rotationXTarget_initializers, _rotationXTarget_extraInitializers);
__esDecorate(null, null, _interactionInitiator_decorators, { kind: "field", name: "interactionInitiator", static: false, private: false, access: { has: obj => "interactionInitiator" in obj, get: obj => obj.interactionInitiator, set: (obj, value) => { obj.interactionInitiator = value; } }, metadata: _metadata }, _interactionInitiator_initializers, _interactionInitiator_extraInitializers);
__esDecorate(null, null, _interactionContainer_decorators, { kind: "field", name: "interactionContainer", static: false, private: false, access: { has: obj => "interactionContainer" in obj, get: obj => obj.interactionContainer, set: (obj, value) => { obj.interactionContainer = value; } }, metadata: _metadata }, _interactionContainer_initializers, _interactionContainer_extraInitializers);
__esDecorate(null, _classDescriptor = { value: _classThis }, _classDecorators, { kind: "class", name: _classThis.name, metadata: _metadata }, null, _classExtraInitializers);
FlingRotation = _classThis = _classDescriptor.value;
if (_metadata) Object.defineProperty(_classThis, Symbol.metadata, { enumerable: true, configurable: true, writable: true, value: _metadata });
__runInitializers(_classThis, _classExtraInitializers);
}
/** The object that will be rotated on Y. Required. */
rotationYTarget = __runInitializers(this, _rotationYTarget_initializers, void 0);
/**
* The object that will be rotated on X. Defaults to the element inside the
* rotationYTarget (it's like a gimball).
*/
rotationXTarget = (__runInitializers(this, _rotationYTarget_extraInitializers), __runInitializers(this, _rotationXTarget_initializers, void 0));
/**
* The element on which the pointer should be placed down on in order to
* initiate drag tracking. This defaults to rotationXTarget.
*/
interactionInitiator = (__runInitializers(this, _rotationXTarget_extraInitializers), __runInitializers(this, _interactionInitiator_initializers, void 0));
/**
* The area in which drag tacking will happen. Defaults to
* document.documentElement for tracking in the whole viewport.
*/
// TODO we only need the initiator (just call it target) and we can remove
// this in favor of pointer capture.
interactionContainer = (__runInitializers(this, _interactionInitiator_extraInitializers), __runInitializers(this, _interactionContainer_initializers, document.documentElement
/**
* The X rotation can not go below this value. Defaults to -90 which means
* facing straight up.
*/
));
/**
* The X rotation can not go below this value. Defaults to -90 which means
* facing straight up.
*/
minFlingRotationX = (__runInitializers(this, _interactionContainer_extraInitializers), -90);
/**
* The X rotation can not go above this value. Defaults to 90 which means
* facing straight down.
*/
maxFlingRotationX = 90;
/**
* The Y rotation can not go below this value. Defaults to -Infinity which
* means the camera can keep rotating laterally around the focus point
* indefinitely.
*/
minFlingRotationY = -Infinity;
/**
* The Y rotation can not go below this value. Defaults to Infinity which
* means the camera can keep rotating laterally around the focus point
* indefinitely.
*/
maxFlingRotationY = Infinity;
factor = 1;
epsilon = 0.01;
/**
* Portion of the change in rotation that is removed each frame to
* cause slowdown. Between 0 and 1.
*/
slowdownAmount = 0.05;
#aborter = new AbortController();
constructor(options = {}) {
super();
Object.assign(this, options);
}
#mainPointer = -1;
#pointerCount = 0;
// The last X/Y only for a single pointer (the rest are ignored).
#lastX = 0;
#lastY = 0;
#deltaX = 0;
#deltaY = 0;
#moveTimestamp = 0;
#onPointerDown = (event) => {
this.#pointerCount++;
if (this.#pointerCount === 1)
this.#mainPointer = event.pointerId;
else
return;
this.interactionContainer.setPointerCapture(this.#mainPointer);
this.#stopAnimation();
this.#lastX = event.x;
this.#lastY = event.y;
this.#deltaX = 0;
this.#deltaY = 0;
// @ts-expect-error, whyyyy TypeScript It says that event type is Event instead of PointerEvent
this.interactionContainer.addEventListener('pointermove', this.#onMove, { signal: this.#aborter.signal });
this.interactionContainer.addEventListener('pointerup', this.#onPointerUp, { signal: this.#aborter.signal });
};
#onMove = (event) => {
if (event.pointerId !== this.#mainPointer)
return;
this.#moveTimestamp = performance.now();
// We're not simply using event.movementX and event.movementY
// because of a Safari bug:
// https://bugs.webkit.org/show_bug.cgi?id=248119
const movementX = event.x - this.#lastX;
const movementY = event.y - this.#lastY;
this.#lastX = event.x;
this.#lastY = event.y;
this.#deltaX = movementY * 0.15 * this.factor;
this.rotationXTarget.rotation.x = clamp(this.rotationXTarget.rotation.x + this.#deltaX, this.minFlingRotationX, this.maxFlingRotationX);
this.#deltaY = -movementX * 0.15 * this.factor;
this.rotationYTarget.rotation.y = clamp(this.rotationYTarget.rotation.y + this.#deltaY, this.minFlingRotationY, this.maxFlingRotationY);
};
#onPointerUp = () => {
this.#pointerCount--;
if (this.#pointerCount === 0) {
if (this.interactionContainer.hasPointerCapture(this.#mainPointer))
this.interactionContainer.releasePointerCapture(this.#mainPointer);
this.#mainPointer = -1;
this.interactionContainer.removeEventListener('pointerup', this.#onPointerUp);
}
// stop dragging
// @ts-expect-error, whyyyy TypeScript It says that event type is Event instead of PointerEvent
this.interactionContainer.removeEventListener('pointermove', this.#onMove);
if ((this.#deltaX === 0 && this.#deltaY === 0) || performance.now() - this.#moveTimestamp > 100)
return;
// slow the rotation down based on former drag speed
this.rotationXTarget.rotation = (x, y, z, _t, dt) => {
const fpsRatio = dt / 16.6666;
// Multiply by fpsRatio so that the slowdownAmount is consistent over time no matter the fps.
this.#deltaX *= 1 - fpsRatio * this.slowdownAmount;
// stop rotation once the delta is small enough that we
// no longer notice the rotation.
if (Math.abs(this.#deltaX) < this.epsilon)
return false;
return [clamp(x + this.#deltaX, this.minFlingRotationX, this.maxFlingRotationX), y, z];
};
this.rotationYTarget.rotation = (x, y, z, _t, dt) => {
const fpsRatio = dt / 16.6666;
// Multiply by fpsRatio so that the slowdownAmount is consistent over time no matter the fps.
this.#deltaY *= 1 - fpsRatio * this.slowdownAmount;
// stop rotation once the delta is small enough that we
// no longer notice the rotation.
if (Math.abs(this.#deltaY) < this.epsilon)
return false;
return [x, clamp(y + this.#deltaY, this.minFlingRotationY, this.maxFlingRotationY), z];
};
};
#onDragStart = (event) => event.preventDefault();
#isStarted = false;
start() {
if (this.#isStarted)
return this;
this.#isStarted = true;
this.createEffect(() => {
// We need all these things for interaction to continue.
if (!(this.rotationYTarget && this.rotationXTarget && this.interactionInitiator && this.interactionContainer))
return;
this.#aborter = new AbortController();
// @ts-expect-error, whyyyy TypeScript TODO fix TypeScript lib.dom types.
this.interactionInitiator.addEventListener('pointerdown', this.#onPointerDown, { signal: this.#aborter.signal });
// Hack needed for Chrome (works fine in Firefox) otherwise
// pointercancel breaks the drag handling. See
// https://crbug.com/1166044
// @ts-expect-error, whyyyy TypeScript It says that event type is Event instead of PointerEvent
this.interactionInitiator.addEventListener('dragstart', this.#onDragStart, { signal: this.#aborter.signal });
this.interactionInitiator.addEventListener('pointercancel', () => {
console.error('Pointercancel should not be happening. If so, please kindly open an issue at https://github.com/lume/lume/issues.');
}, { signal: this.#aborter.signal });
onCleanup(() => {
this.#mainPointer = -1;
this.#pointerCount = 0;
this.#stopAnimation();
this.#aborter.abort();
});
});
return this;
}
stop() {
if (!this.#isStarted)
return this;
this.#isStarted = false;
this.stopEffects();
return this;
}
#stopAnimation() {
// Stop any current animation.
this.rotationXTarget.rotation = () => false;
this.rotationYTarget.rotation = () => false;
}
};
return FlingRotation = _classThis;
})();
export { FlingRotation };
//# sourceMappingURL=FlingRotation.js.map