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import { FocalPointPicker } from '@wordpress/components'; |
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|
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const imgCache = {}; |
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|
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/** |
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* Convert background size tp focal point object value |
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* |
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* @param {string} size - background size. |
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* |
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* @return {Object} background size object. |
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*/ |
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function sizeToPoint(size) { |
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const sizes = size.split(' '); |
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const result = { |
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x: 0.5, |
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y: 0.5, |
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}; |
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|
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if (!sizes[0]) { |
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return result; |
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} |
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|
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if (!sizes[1]) { |
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sizes.push(sizes[0]); |
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} |
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|
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result.x = Math.max(Math.min(parseFloat(sizes[0]) / 100, 1), 0); |
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result.y = Math.max(Math.min(parseFloat(sizes[1]) / 100, 1), 0); |
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|
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return result; |
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} |
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|
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/** |
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* Parse string with image tag and retreive image src. |
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* |
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* @param {string} image - image tag in string |
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* |
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* @return {string} - image src |
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*/ |
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function parseImageUrl(image) { |
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if (typeof imgCache[image] !== 'undefined') { |
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return imgCache[image]; |
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} |
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|
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// <img> tag |
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let src = /<img\s[^>]*?src\s*=\s*['"]([^'"]*?)['"][^>]*?>/g.exec(image); |
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|
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if (src && src[1]) { |
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imgCache[image] = src[1]; |
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return src[1]; |
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} |
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|
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// <div> tag with background image style. |
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const style = /<div\s[^>]*?style\s*=\s*['"]([^'"]*?)['"][^>]*?>/g.exec( |
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image |
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); |
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|
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if (style && style[1]) { |
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src = style[1] |
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.replace('background-image: url("', '') |
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.replace('background-image: url("', '') |
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.replace('");', '') |
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.replace('");', ''); |
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|
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if (src) { |
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imgCache[image] = src; |
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return src; |
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} |
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} |
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|
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imgCache[image] = false; |
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return false; |
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} |
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|
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/** |
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* Component Class. |
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* |
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* @param props |
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*/ |
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export default function CustomFocalPointPicker(props) { |
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const { value, onChange, label, image } = props; |
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|
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let imageUrl = ''; |
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|
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if (!image) { |
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return null; |
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} |
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|
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imageUrl = parseImageUrl(image); |
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|
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if (!imageUrl) { |
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return null; |
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} |
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|
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const focalPointValue = sizeToPoint(value); |
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|
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return ( |
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<FocalPointPicker |
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label={label} |
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url={imageUrl} |
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value={focalPointValue} |
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onChange={(val) => { |
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onChange( |
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`${parseInt(100 * val.x, 10)}% ${parseInt( |
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100 * val.y, |
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10 |
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)}%` |
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); |
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}} |
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/> |
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); |
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} |
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|
