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84 lines
2.0 KiB
84 lines
2.0 KiB
export function toArray (children) {
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const c = []
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children.forEach(child => {
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if (child.data) {
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c.push(child)
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}
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})
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return c
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}
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export function getActiveIndex (children, activeKey) {
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const c = toArray(children)
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for (let i = 0; i < c.length; i++) {
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if (c[i].key === activeKey) {
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return i
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}
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}
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return -1
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}
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export function getActiveKey (children, index) {
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const c = toArray(children)
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return c[index].key
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}
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export function setTransform (style, v) {
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style.transform = v
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style.webkitTransform = v
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style.mozTransform = v
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}
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export function isTransformSupported (style) {
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return 'transform' in style ||
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'webkitTransform' in style ||
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'MozTransform' in style
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}
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export function setTransition (style, v) {
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style.transition = v
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style.webkitTransition = v
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style.MozTransition = v
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}
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export function getTransformPropValue (v) {
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return {
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transform: v,
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WebkitTransform: v,
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MozTransform: v,
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}
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}
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export function isVertical (tabBarPosition) {
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return tabBarPosition === 'left' || tabBarPosition === 'right'
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}
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export function getTransformByIndex (index, tabBarPosition) {
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const translate = isVertical(tabBarPosition) ? 'translateY' : 'translateX'
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return `${translate}(${-index * 100}%) translateZ(0)`
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}
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export function getMarginStyle (index, tabBarPosition) {
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const marginDirection = isVertical(tabBarPosition) ? 'marginTop' : 'marginLeft'
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return {
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[marginDirection]: `${-index * 100}%`,
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}
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}
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export function getStyle (el, property) {
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return +window.getComputedStyle(el).getPropertyValue(property).replace('px', '')
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}
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export function setPxStyle (el, value, vertical) {
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value = vertical ? `0px, ${value}px, 0px` : `${value}px, 0px, 0px`
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setTransform(el.style, `translate3d(${value})`)
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}
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export function getDataAttr (props) {
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return Object.keys(props).reduce((prev, key) => {
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if (key.substr(0, 5) === 'aria-' || key.substr(0, 5) === 'data-' || key === 'role') {
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prev[key] = props[key]
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}
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return prev
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}, {})
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}
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