vevet
Version:
Vevet is a JavaScript library for creative development that simplifies crafting rich interactions like split text animations, carousels, marquees, preloading, and more.
231 lines • 8.57 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];
}
return t;
};
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;
o[k2] = m[k];
}));
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.Canvas = void 0;
var onResize_1 = require("../../utils/listeners/onResize");
var Module_1 = require("../../base/Module");
var initVevet_1 = require("../../global/initVevet");
__exportStar(require("./types"), exports);
/**
* A class for managing an HTML5 Canvas element and its 2D context.
*
* [Documentation](https://antonbobrov.github.io/vevet/docs/components/Canvas)
*
* @group Components
*/
var Canvas = /** @class */ (function (_super) {
__extends(Canvas, _super);
/**
* Constructor for the Ctx2D class.
*/
function Canvas(props) {
var _this = _super.call(this, props) || this;
var _a = _this.props, shouldAppend = _a.append, container = _a.container, hasResizeOnInit = _a.resizeOnInit, hasRuntimeResize = _a.resizeOnRuntime, viewportTarget = _a.viewportTarget, resizeDebounce = _a.resizeDebounce;
// Set default values
_this._width = 0;
_this._height = 0;
_this._dpr = 1;
// Create canvas element
_this._canvas = document.createElement('canvas');
// Add canvas styles
var style = _this._canvas.style;
style.position = 'absolute';
style.top = '0';
style.left = '0';
style.width = '100%';
style.height = '100%';
// Append canvas to container if required
if (shouldAppend && container instanceof HTMLElement) {
container.append(_this._canvas);
_this.onDestroy(function () { return _this.canvas.remove(); });
}
// Create 2D context
_this._ctx = _this._canvas.getContext('2d');
// Set resize events
if (hasResizeOnInit) {
_this.resize();
}
if (hasRuntimeResize) {
var resizeHandler_1 = (0, onResize_1.onResize)({
callback: function () { return _this.resize(); },
element: _this.props.container,
viewportTarget: viewportTarget,
resizeDebounce: resizeDebounce,
name: _this.name,
});
_this.onDestroy(function () { return resizeHandler_1.remove(); });
}
return _this;
}
/** Get default static properties */
Canvas.prototype._getStatic = function () {
return __assign(__assign({}, _super.prototype._getStatic.call(this)), { container: null, append: true, resizeOnInit: true, resizeOnRuntime: false, viewportTarget: 'any', resizeDebounce: 0 });
};
/** Get default mutable properties */
Canvas.prototype._getMutable = function () {
return __assign(__assign({}, _super.prototype._getMutable.call(this)), { width: 'auto', height: 'auto', dpr: 'auto' });
};
Object.defineProperty(Canvas.prototype, "canvas", {
/** The canvas element instance. */
get: function () {
return this._canvas;
},
enumerable: false,
configurable: true
});
Object.defineProperty(Canvas.prototype, "ctx", {
/** Returns the 2D rendering context */
get: function () {
return this._ctx;
},
enumerable: false,
configurable: true
});
Object.defineProperty(Canvas.prototype, "width", {
/** Canvas width (DPR applied). */
get: function () {
return this._width;
},
enumerable: false,
configurable: true
});
Object.defineProperty(Canvas.prototype, "offsetWidth", {
/** Width without DPR scaling. */
get: function () {
return this.width / this.dpr;
},
enumerable: false,
configurable: true
});
Object.defineProperty(Canvas.prototype, "height", {
/** Canvas height (DPR applied). */
get: function () {
return this._height;
},
enumerable: false,
configurable: true
});
Object.defineProperty(Canvas.prototype, "offsetHeight", {
/** Height without DPR scaling. */
get: function () {
return this.height / this.dpr;
},
enumerable: false,
configurable: true
});
Object.defineProperty(Canvas.prototype, "dpr", {
/** Current device pixel ratio. */
get: function () {
return this._dpr;
},
enumerable: false,
configurable: true
});
Object.defineProperty(Canvas.prototype, "canRender", {
/** Checks if the canvas is ready to render. */
get: function () {
return this.width > 0 && this.height > 0;
},
enumerable: false,
configurable: true
});
/** Handle property mutations */
Canvas.prototype._handleProps = function () {
_super.prototype._handleProps.call(this);
this.resize();
};
/** Triggers a canvas resize based on container or viewport dimensions. */
Canvas.prototype.resize = function () {
var core = (0, initVevet_1.initVevet)();
var _a = this, props = _a.props, canvas = _a.canvas;
var container = this.props.container;
// Calculate DPR
this._dpr = typeof props.dpr === 'number' ? props.dpr : core.dpr;
// Calculate new width and height
var newWidth = 0;
var newHeight = 0;
if (props.width === 'auto') {
newWidth = (container === null || container === void 0 ? void 0 : container.offsetWidth) || core.width;
}
else {
newWidth = props.width;
}
if (props.height === 'auto') {
newHeight = (container === null || container === void 0 ? void 0 : container.offsetHeight) || core.height;
}
else {
newHeight = props.height;
}
// Apply DPR
newWidth *= this._dpr;
newHeight *= this._dpr;
// Update canvas size
this._width = newWidth;
this._height = newHeight;
canvas.width = newWidth;
canvas.height = newHeight;
// Callbacks
this.callbacks.emit('resize', undefined);
};
/**
* Renders content on the canvas if it's ready.
*
* @param render - A function that performs the actual rendering on the canvas.
*/
Canvas.prototype.render = function (render) {
if (!this.canRender) {
return;
}
render({
ctx: this.ctx,
width: this.width,
height: this.height,
dpr: this.dpr,
offsetWidth: this.offsetWidth,
offsetHeight: this.offsetHeight,
canvas: this.canvas,
});
};
return Canvas;
}(Module_1.Module));
exports.Canvas = Canvas;
//# sourceMappingURL=index.js.map