vevet
Version:
Vevet is a JavaScript library for creative development that simplifies crafting rich interactions like split text animations, carousels, marquees, preloading, and more.
430 lines • 15.3 kB
JavaScript
"use strict";
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
if (typeof b !== "function" && b !== null)
throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
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};
return __assign.apply(this, arguments);
};
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
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var __exportStar = (this && this.__exportStar) || function(m, exports) {
for (var p in m) if (p !== "default" && !Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Swipe = void 0;
var base_1 = require("../../base");
var initVevet_1 = require("../../global/initVevet");
var utils_1 = require("../../utils");
var Pointers_1 = require("../Pointers");
var Coords_1 = require("./Coords");
var Inertia_1 = require("./Inertia");
var props_1 = require("./props");
var Styles_1 = require("./Styles");
__exportStar(require("./types"), exports);
__exportStar(require("./global"), exports);
/**
* Manages swipe interactions:
* - Tracks movement and detects direction
* - Emits events on start, move, and end
* - Supports inertia-based movement
*
* Notes:
* - Does not transform elements, only computes coordinates.
* - Does not persist state after swipe completion.
*
* [Documentation](https://vevetjs.com/docs/Swipe)
*
* @group Components
*/
var Swipe = /** @class */ (function (_super) {
__extends(Swipe, _super);
function Swipe(props, onCallbacks) {
var _this = _super.call(this, props, onCallbacks) || this;
/** If swiping has started */
_this._isSwiping = false;
/** If swiping has been aborted */
_this._isAborted = false;
var _a = _this.props, container = _a.container, thumb = _a.thumb, buttons = _a.buttons, pointers = _a.pointers;
_this._coords = new Coords_1.SwipeCoords(_this);
_this._inertia = new Inertia_1.SwipeInertia(_this);
_this._styles = new Styles_1.SwipeStyles(_this);
// create pointers
_this._pointers = new Pointers_1.Pointers({
container: thumb || container,
buttons: buttons,
minPointers: pointers,
maxPointers: pointers,
enabled: _this.props.enabled,
disableUserSelect: _this.props.disableUserSelect,
});
// Set Events
_this._setEvents();
return _this;
}
/**
* Returns default static properties.
*/
Swipe.prototype._getStatic = function () {
return __assign(__assign({}, _super.prototype._getStatic.call(this)), props_1.STATIC_PROPS);
};
/**
* Returns default mutable properties.
*/
Swipe.prototype._getMutable = function () {
return __assign(__assign({}, _super.prototype._getMutable.call(this)), props_1.MUTABLE_PROPS);
};
Object.defineProperty(Swipe.prototype, "coords", {
/** Returns current swipe coordinates */
get: function () {
return this._coords.coords;
},
enumerable: false,
configurable: true
});
Object.defineProperty(Swipe.prototype, "container", {
/** Event target element */
get: function () {
return this.props.container;
},
enumerable: false,
configurable: true
});
Object.defineProperty(Swipe.prototype, "hasInertia", {
/** Indicates if inertia is active */
get: function () {
return this._inertia.has;
},
enumerable: false,
configurable: true
});
Object.defineProperty(Swipe.prototype, "isSwiping", {
/** Indicates if a swipe is active */
get: function () {
return this._isSwiping;
},
enumerable: false,
configurable: true
});
/** Handles property updates */
Swipe.prototype._handleProps = function (props) {
_super.prototype._handleProps.call(this, props);
this._pointers.updateProps({ enabled: this.props.enabled });
this._styles.setInline();
};
/** Sets event listeners */
Swipe.prototype._setEvents = function () {
var _this = this;
var callbacks = this.callbacks;
var container = this.props.container;
this._pointers.on('start', function () { return _this._handlePointersStart(); });
this._pointers.on('pointerdown', function (data) {
return callbacks.emit('pointerdown', data);
});
this._pointers.on('pointermove', function (data) {
return callbacks.emit('pointermove', data);
});
this._pointers.on('pointerup', function (data) { return callbacks.emit('pointerup', data); });
var touchstart = (0, utils_1.addEventListener)(container, 'touchstart', function (event) { return _this._handleTouchStart(event); }, { passive: false });
this.onDestroy(function () { return touchstart(); });
};
/** Handles `touchstart` events */
Swipe.prototype._handleTouchStart = function (event) {
if (!this.props.enabled) {
return;
}
this.callbacks.emit('touchstart', event);
this._preventEdgeSwipe(event);
};
/** Prevents edge swipes if enabled */
Swipe.prototype._preventEdgeSwipe = function (event) {
var props = this.props;
if (!props.preventEdgeSwipe) {
return;
}
var threshold = props.edgeSwipeThreshold;
var x = event.targetTouches[0].pageX;
var shouldPrevent = x <= threshold || x >= (0, initVevet_1.initVevet)().width - threshold;
if (event.cancelable && shouldPrevent) {
event.preventDefault();
this.callbacks.emit('preventEdgeSwipe', undefined);
}
};
/** Handles swipe start and tracking */
Swipe.prototype._handlePointersStart = function () {
var _this = this;
var touchmove = (0, utils_1.addEventListener)(window, 'touchmove', this._handleTouchMove.bind(this), { passive: false });
var mousemove = (0, utils_1.addEventListener)(window, 'mousemove', this._handleMouseMove.bind(this));
var end = this._pointers.on('end', function () {
_this._handleEnd();
end();
touchmove();
mousemove();
});
this.onDestroy(function () {
end();
touchmove();
mousemove();
});
};
/** Handles `touchmove` event */
Swipe.prototype._handleTouchMove = function (event) {
this.callbacks.emit('touchmove', event);
if (this._isSwiping && this.props.preventTouchMove && event.cancelable) {
event.preventDefault();
}
this._handleMove(event, 'touch');
};
/** Handles `mousemove` event */
Swipe.prototype._handleMouseMove = function (event) {
if (this.props.requireCtrlKey && !event.ctrlKey) {
return;
}
this.callbacks.emit('mousemove', event);
this._handleMove(event, 'mouse');
};
/** Handles move events */
Swipe.prototype._handleMove = function (event, type) {
var data = this._coords;
var matrix = data.decode(event);
if (this._isAborted) {
return;
}
// Save start coordinates
if (!this._startCoord) {
this._startCoord = __assign({}, matrix);
}
// Update start time
if (!this._startTime) {
this._startTime = +Date.now();
}
// check if can start
if (!this._isSwiping && !this._canStart(matrix, type)) {
return;
}
// start
if (!this._isSwiping) {
this._inertia.cancel();
this._isSwiping = true;
this._startCoord = __assign({}, matrix);
data.setStart(matrix);
this.callbacks.emit('start', this.coords);
this._styles.append();
}
// move
this._move(matrix);
};
/** Checks if swipe can start */
Swipe.prototype._canStart = function (matrix, type) {
var startCoord = this._startCoord;
var startTime = this._startTime;
if (!startCoord || !startTime) {
return false;
}
var _a = this.props, threshold = _a.threshold, ratio = _a.ratio, minTime = _a.minTime, axis = _a.axis, willAbort = _a.willAbort;
var speed = Math.abs(ratio);
var diff = {
x: matrix.x - startCoord.x,
y: matrix.y - startCoord.y,
};
// check threshold
var distX = diff.x / speed;
var distY = diff.y / speed;
var dist = Math.sqrt(Math.pow(distX, 2) + Math.pow(distY, 2));
if (dist < threshold) {
return false;
}
// check time
if (+new Date() - startTime < minTime) {
return false;
}
// check axis
if (axis) {
var rawAngle = (Math.atan2(Math.abs(diff.y), Math.abs(diff.x)) * 180) / Math.PI;
var normalizedAngle = axis === 'x' ? rawAngle : 90 - rawAngle;
if (normalizedAngle > 45) {
this._reset();
this._isAborted = true;
this.callbacks.emit('abort', undefined);
return false;
}
}
// Check if should abort
var shouldAbort = willAbort({
type: type,
matrix: matrix,
start: startCoord,
diff: diff,
});
if (shouldAbort) {
this._reset();
this._isAborted = true;
this.callbacks.emit('abort', undefined);
return false;
}
return true;
};
/** Handles move events */
Swipe.prototype._move = function (matrix) {
var coords = this._coords;
// Update coords
coords.update(matrix);
// Update velocity
this._inertia.addVelocity(__assign(__assign({}, coords.current), { timestamp: coords.timestamp }));
// trigger callbacks
this.callbacks.emit('move', this.coords);
};
/** Handles swipe end */
Swipe.prototype._handleEnd = function () {
// reset
this._startTime = undefined;
this._isAborted = false;
// check swiping
if (!this.isSwiping) {
return;
}
// reset
this._reset();
// reset styles
this._styles.remove();
// calculate direction
var _a = this._coords.diff, diffX = _a.x, diffY = _a.y;
var absDiffX = Math.abs(diffX);
var absDiffY = Math.abs(diffY);
var directionThreshold = this.props.directionThreshold;
var endAxis = absDiffX > absDiffY ? 'x' : 'y';
if (endAxis === 'x' && absDiffX > directionThreshold) {
if (diffX > 0) {
this.callbacks.emit('toRight', undefined);
}
else if (diffX < 0) {
this.callbacks.emit('toLeft', undefined);
}
}
if (endAxis === 'y' && absDiffY > directionThreshold) {
if (diffY > 0) {
this.callbacks.emit('toBottom', undefined);
}
else if (diffY < 0) {
this.callbacks.emit('toTop', undefined);
}
}
// end callback
this.callbacks.emit('end', this.coords);
// modifiy last velocity time
this._inertia.updateLastTimestamp();
// end with inertia
if (this.props.inertia) {
this._releaseInertia();
}
};
/** Reset swipe states */
Swipe.prototype._reset = function () {
this._startCoord = undefined;
this._isSwiping = false;
};
/** Apply inertia-based movement */
Swipe.prototype._releaseInertia = function () {
var _this = this;
var startMatrix = __assign({}, this.coords.current);
this._inertia.release(function (addMatrix) {
_this._move({
x: startMatrix.x + addMatrix.x,
y: startMatrix.y + addMatrix.y,
angle: startMatrix.angle + addMatrix.angle,
});
});
};
/** Cancel inertia */
Swipe.prototype.cancelInertia = function () {
this._inertia.cancel();
};
Object.defineProperty(Swipe.prototype, "start", {
/** Start coordinate */
get: function () {
return this._coords.start;
},
enumerable: false,
configurable: true
});
Object.defineProperty(Swipe.prototype, "prev", {
/** Previous coordinate */
get: function () {
return this._coords.prev;
},
enumerable: false,
configurable: true
});
Object.defineProperty(Swipe.prototype, "current", {
/** Current coordinate */
get: function () {
return this._coords.current;
},
enumerable: false,
configurable: true
});
Object.defineProperty(Swipe.prototype, "diff", {
/** Difference between start and current coordinates */
get: function () {
return this._coords.diff;
},
enumerable: false,
configurable: true
});
Object.defineProperty(Swipe.prototype, "step", {
/** Difference between start and previous coordinates */
get: function () {
return this._coords.step;
},
enumerable: false,
configurable: true
});
Object.defineProperty(Swipe.prototype, "accum", {
/** Accumulated movement */
get: function () {
return this._coords.accum;
},
enumerable: false,
configurable: true
});
/**
* Destroys the component
*/
Swipe.prototype._destroy = function () {
_super.prototype._destroy.call(this);
this._pointers.destroy();
this._inertia.destroy();
this._styles.remove();
};
return Swipe;
}(base_1.Module));
exports.Swipe = Swipe;
//# sourceMappingURL=index.js.map