kute.js/src/components/backgroundPosition.js
thednp 2a5bac2bb3 Changes V2.2.0:
* major JSDoc write up
* removed ESLint `no-bitwise` exception, it only applies to specific functions and not the entire code
* the `SVGCubicMorph` component will remove un-necessary `Z` path commands when is the case for better out of the box animation
* fixed a minor disambiguation with `filterEffects` and `drop-shadow` property and its `dropshadow` interpolation function
* TypeScript strong: all files are modules, easy to implement in any third party app
* updated `CubicBezier` and SVGPathCommander
* code cleanup
2021-12-08 23:43:31 +02:00

58 lines
1.6 KiB
JavaScript

import defaultValues from '../objects/defaultValues';
import getStyleForProperty from '../process/getStyleForProperty';
import numbers from '../interpolation/numbers';
import trueDimension from '../util/trueDimension';
import { onStartBgPos } from './backgroundPositionBase';
// Component Functions
/**
* Returns the property computed style.
* @param {string} prop the property
* @returns {string} the property computed style
*/
function getBgPos(prop/* , value */) {
return getStyleForProperty(this.element, prop) || defaultValues[prop];
}
/**
* Returns the property tween object.
* @param {string} _ the property name
* @param {string} value the property value
* @returns {number[]} the property tween object
*/
function prepareBgPos(/* prop, */_, value) {
if (value instanceof Array) {
const x = trueDimension(value[0]).v;
const y = trueDimension(value[1]).v;
return [!Number.isNaN(x * 1) ? x : 50, !Number.isNaN(y * 1) ? y : 50];
}
let posxy = value.replace(/top|left/g, 0)
.replace(/right|bottom/g, 100)
.replace(/center|middle/g, 50);
posxy = posxy.split(/(,|\s)/g);
posxy = posxy.length === 2 ? posxy : [posxy[0], 50];
return [trueDimension(posxy[0]).v, trueDimension(posxy[1]).v];
}
// All Component Functions
const bgPositionFunctions = {
prepareStart: getBgPos,
prepareProperty: prepareBgPos,
onStart: onStartBgPos,
};
// Component Full Object
const BackgroundPosition = {
component: 'backgroundPositionProp',
property: 'backgroundPosition',
defaultValue: [50, 50],
Interpolate: { numbers },
functions: bgPositionFunctions,
Util: { trueDimension },
};
export default BackgroundPosition;