'use strict';

// from https://github.com/developit/preact/blob/33fc697ac11762a1cb6e71e9847670d047af7ce5/src/constants.js

const IS_NON_DIMENSIONAL = /acit|ex(?:s|g|n|p|$)|rph|ows|mnc|ntw|ine[ch]|zoo|^ord/i;

// style is handled as both string and object

// even if the target is an SVG element (consistency)

Object.defineProperty(exports, '__esModule', {value: true}).default = (node, original, isSVG) => {

if (isSVG) {

const style = original.cloneNode(true);

style.value = '';

node.setAttributeNode(style);

return update(style, isSVG);

}

return update(node.style, isSVG);

};

// the update takes care or changing/replacing

// only properties that are different or

// in case of string, the whole node

const update = (style, isSVG) => {

let oldType, oldValue;

return newValue => {

switch (typeof newValue) {

case 'object':

if (newValue) {

if (oldType === 'object') {

if (!isSVG) {

if (oldValue !== newValue) {

for (const key in oldValue) {

if (!(key in newValue)) {

style[key] = '';

}

}

}

}

} else {

if (isSVG)

style.value = '';

else

style.cssText = '';

}

const info = isSVG ? {} : style;

for (const key in newValue) {

const value = newValue[key];

const styleValue = typeof value === 'number' &&

!IS_NON_DIMENSIONAL.test(key) ?

(value + 'px') : value;

if (!isSVG && /^--/.test(key))

info.setProperty(key, styleValue);

else

info[key] = styleValue;

}

oldType = 'object';

if (isSVG)

style.value = toStyle((oldValue = info));

else

oldValue = newValue;

break;

}

default:

if (oldValue != newValue) {

oldType = 'string';

oldValue = newValue;

if (isSVG)

style.value = newValue || '';

else

style.cssText = newValue || '';

}

break;

}

};

};

const hyphen = /([^A-Z])([A-Z]+)/g;

const ized = ($0, $1, $2) => $1 + '-' + $2.toLowerCase();

const toStyle = object => {

const css = [];

for (const key in object) {

css.push(key.replace(hyphen, ized), ':', object[key], ';');

}

return css.join('');

};