office-ui-fabric-react
Version:
Reusable React components for building experiences for Office 365.
61 lines • 3.11 kB
JavaScript
import * as tslib_1 from "tslib";
import * as React from 'react';
import { BaseComponent, classNamesFunction, DelayedRender, getNativeProps, divProperties } from '../../Utilities';
import { ShimmerElementsGroup } from './ShimmerElementsGroup/ShimmerElementsGroup';
var TRANSITION_ANIMATION_INTERVAL = 200; /* ms */
var getClassNames = classNamesFunction();
var ShimmerBase = /** @class */ (function (_super) {
tslib_1.__extends(ShimmerBase, _super);
function ShimmerBase(props) {
var _this = _super.call(this, props) || this;
_this.state = {
contentLoaded: props.isDataLoaded
};
return _this;
}
ShimmerBase.prototype.componentWillReceiveProps = function (nextProps) {
var _this = this;
var isDataLoaded = nextProps.isDataLoaded;
if (this._lastTimeoutId !== undefined) {
this._async.clearTimeout(this._lastTimeoutId);
this._lastTimeoutId = undefined;
}
if (isDataLoaded) {
this._lastTimeoutId = this._async.setTimeout(function () {
_this.setState({
contentLoaded: isDataLoaded
});
_this._lastTimeoutId = undefined;
}, TRANSITION_ANIMATION_INTERVAL);
}
else {
this.setState({
contentLoaded: isDataLoaded
});
}
};
ShimmerBase.prototype.render = function () {
var _a = this.props, styles = _a.styles, shimmerElements = _a.shimmerElements, children = _a.children, isDataLoaded = _a.isDataLoaded, width = _a.width, className = _a.className, customElementsGroup = _a.customElementsGroup, theme = _a.theme, ariaLabel = _a.ariaLabel;
var contentLoaded = this.state.contentLoaded;
this._classNames = getClassNames(styles, {
theme: theme,
isDataLoaded: isDataLoaded,
className: className,
transitionAnimationInterval: TRANSITION_ANIMATION_INTERVAL
});
var divProps = getNativeProps(this.props, divProperties);
return (React.createElement("div", tslib_1.__assign({}, divProps, { className: this._classNames.root }),
!contentLoaded && (React.createElement("div", { style: { width: width ? width : '100%' }, className: this._classNames.shimmerWrapper }, customElementsGroup ? customElementsGroup : React.createElement(ShimmerElementsGroup, { shimmerElements: shimmerElements }))),
children && React.createElement("div", { className: this._classNames.dataWrapper }, children),
ariaLabel &&
!isDataLoaded && (React.createElement("div", { role: "status", "aria-live": "polite" },
React.createElement(DelayedRender, null,
React.createElement("div", { className: this._classNames.screenReaderText }, ariaLabel))))));
};
ShimmerBase.defaultProps = {
isDataLoaded: false
};
return ShimmerBase;
}(BaseComponent));
export { ShimmerBase };
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