ant-design-vue/components/spin/Spin.jsx

178 lines
4.8 KiB
Vue

import debounce from 'lodash/debounce';
import PropTypes from '../_util/vue-types';
import BaseMixin from '../_util/BaseMixin';
import {
filterEmpty,
initDefaultProps,
isValidElement,
getComponentFromProp,
getListeners,
} from '../_util/props-util';
import { cloneElement } from '../_util/vnode';
import { ConfigConsumerProps } from '../config-provider';
export const SpinSize = PropTypes.oneOf(['small', 'default', 'large']);
export const SpinProps = () => ({
prefixCls: PropTypes.string,
spinning: PropTypes.bool,
size: SpinSize,
wrapperClassName: PropTypes.string,
tip: PropTypes.string,
delay: PropTypes.number,
indicator: PropTypes.any,
});
// Render indicator
let defaultIndicator;
function shouldDelay(spinning, delay) {
return !!spinning && !!delay && !isNaN(Number(delay));
}
export function setDefaultIndicator(Content) {
defaultIndicator =
typeof Content.indicator === 'function'
? Content.indicator
: h => {
return <Content.indicator />;
};
}
export default {
name: 'ASpin',
mixins: [BaseMixin],
props: initDefaultProps(SpinProps(), {
size: 'default',
spinning: true,
wrapperClassName: '',
}),
inject: {
configProvider: { default: () => ConfigConsumerProps },
},
data() {
const { spinning, delay } = this;
const shouldBeDelayed = shouldDelay(spinning, delay);
this.originalUpdateSpinning = this.updateSpinning;
this.debouncifyUpdateSpinning(this.$props);
return {
sSpinning: spinning && !shouldBeDelayed,
};
},
mounted() {
this.updateSpinning();
},
updated() {
this.$nextTick(() => {
this.debouncifyUpdateSpinning();
this.updateSpinning();
});
},
beforeDestroy() {
this.cancelExistingSpin();
},
methods: {
debouncifyUpdateSpinning(props) {
const { delay } = props || this.$props;
if (delay) {
this.cancelExistingSpin();
this.updateSpinning = debounce(this.originalUpdateSpinning, delay);
}
},
updateSpinning() {
const { spinning, sSpinning } = this;
if (sSpinning !== spinning) {
this.setState({ sSpinning: spinning });
}
},
cancelExistingSpin() {
const { updateSpinning } = this;
if (updateSpinning && updateSpinning.cancel) {
updateSpinning.cancel();
}
},
getChildren() {
if (this.$slots && this.$slots.default) {
return filterEmpty(this.$slots.default);
}
return null;
},
renderIndicator(h, prefixCls) {
// const h = this.$createElement
const dotClassName = `${prefixCls}-dot`;
let indicator = getComponentFromProp(this, 'indicator');
// should not be render default indicator when indicator value is null
if (indicator === null) {
return null;
}
if (Array.isArray(indicator)) {
indicator = filterEmpty(indicator);
indicator = indicator.length === 1 ? indicator[0] : indicator;
}
if (isValidElement(indicator)) {
return cloneElement(indicator, { class: dotClassName });
}
if (defaultIndicator && isValidElement(defaultIndicator(h))) {
return cloneElement(defaultIndicator(h), { class: dotClassName });
}
return (
<span class={`${dotClassName} ${prefixCls}-dot-spin`}>
<i class={`${prefixCls}-dot-item`} />
<i class={`${prefixCls}-dot-item`} />
<i class={`${prefixCls}-dot-item`} />
<i class={`${prefixCls}-dot-item`} />
</span>
);
},
},
render(h) {
const {
size,
prefixCls: customizePrefixCls,
tip,
wrapperClassName,
...restProps
} = this.$props;
const getPrefixCls = this.configProvider.getPrefixCls;
const prefixCls = getPrefixCls('spin', customizePrefixCls);
const { sSpinning } = this;
const spinClassName = {
[prefixCls]: true,
[`${prefixCls}-sm`]: size === 'small',
[`${prefixCls}-lg`]: size === 'large',
[`${prefixCls}-spinning`]: sSpinning,
[`${prefixCls}-show-text`]: !!tip,
};
const spinElement = (
<div {...restProps} class={spinClassName}>
{this.renderIndicator(h, prefixCls)}
{tip ? <div class={`${prefixCls}-text`}>{tip}</div> : null}
</div>
);
const children = this.getChildren();
if (children) {
const containerClassName = {
[`${prefixCls}-container`]: true,
[`${prefixCls}-blur`]: sSpinning,
};
return (
<div
{...{ on: getListeners(this) }}
class={[`${prefixCls}-nested-loading`, wrapperClassName]}
>
{sSpinning && <div key="loading">{spinElement}</div>}
<div class={containerClassName} key="container">
{children}
</div>
</div>
);
}
return spinElement;
},
};