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import warning from 'warning';
var scrollbarVerticalSize = void 0;
var scrollbarHorizontalSize = void 0;
// Measure scrollbar width for padding body during modal show/hide
var scrollbarMeasure = {
position: 'absolute',
top: '-9999px',
width: '50px',
height: '50px'
};
export function measureScrollbar() {
var direction = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'vertical';
if (typeof document === 'undefined' || typeof window === 'undefined') {
return 0;
}
var isVertical = direction === 'vertical';
if (isVertical && scrollbarVerticalSize) {
return scrollbarVerticalSize;
} else if (!isVertical && scrollbarHorizontalSize) {
return scrollbarHorizontalSize;
}
var scrollDiv = document.createElement('div');
Object.keys(scrollbarMeasure).forEach(function (scrollProp) {
scrollDiv.style[scrollProp] = scrollbarMeasure[scrollProp];
});
// Append related overflow style
if (isVertical) {
scrollDiv.style.overflowY = 'scroll';
} else {
scrollDiv.style.overflowX = 'scroll';
}
document.body.appendChild(scrollDiv);
var size = 0;
if (isVertical) {
size = scrollDiv.offsetWidth - scrollDiv.clientWidth;
scrollbarVerticalSize = size;
} else if (!isVertical) {
size = scrollDiv.offsetHeight - scrollDiv.clientHeight;
scrollbarHorizontalSize = size;
}
document.body.removeChild(scrollDiv);
return size;
}
export function debounce(func, wait, immediate) {
var timeout = void 0;
function debounceFunc() {
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
var context = this;
// https://fb.me/react-event-pooling
if (args[0] && args[0].persist) {
args[0].persist();
}
var later = function later() {
timeout = null;
if (!immediate) {
func.apply(context, args);
}
};
var callNow = immediate && !timeout;
clearTimeout(timeout);
timeout = setTimeout(later, wait);
if (callNow) {
func.apply(context, args);
}
}
debounceFunc.cancel = function cancel() {
if (timeout) {
clearTimeout(timeout);
timeout = null;
}
};
return debounceFunc;
}
var warned = {};
export function warningOnce(condition, format, args) {
if (!warned[format]) {
warning(condition, format, args);
warned[format] = !condition;
}
}
export function remove(array, item) {
var index = array.indexOf(item);
var front = array.slice(0, index);
var last = array.slice(index + 1, array.length);
return front.concat(last);
}