152 lines
4.2 KiB
JavaScript
152 lines
4.2 KiB
JavaScript
import PropTypes from './vue-types';
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import switchScrollingEffect from './switchScrollingEffect';
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import setStyle from './setStyle';
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import Portal from './Portal';
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import syncWatch from './syncWatch';
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let openCount = 0;
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const windowIsUndefined = !(
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typeof window !== 'undefined' &&
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window.document &&
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window.document.createElement
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);
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// https://github.com/ant-design/ant-design/issues/19340
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// https://github.com/ant-design/ant-design/issues/19332
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let cacheOverflow = {};
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export default {
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name: 'PortalWrapper',
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props: {
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wrapperClassName: PropTypes.string,
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forceRender: PropTypes.bool,
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getContainer: PropTypes.any,
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children: PropTypes.func,
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visible: PropTypes.bool,
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},
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data() {
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this._component = null;
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const { visible } = this.$props;
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openCount = visible ? openCount + 1 : openCount;
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return {};
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},
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updated() {
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this.setWrapperClassName();
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},
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watch: {
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visible: syncWatch(function(val) {
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openCount = val ? openCount + 1 : openCount - 1;
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}),
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getContainer(getContainer, prevGetContainer) {
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const getContainerIsFunc =
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typeof getContainer === 'function' && typeof prevGetContainer === 'function';
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if (
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getContainerIsFunc
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? getContainer.toString() !== prevGetContainer.toString()
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: getContainer !== prevGetContainer
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) {
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this.removeCurrentContainer(false);
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}
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},
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},
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beforeUnmount() {
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const { visible } = this.$props;
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// 离开时不会 render， 导到离开时数值不变，改用 func 。。
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openCount = visible && openCount ? openCount - 1 : openCount;
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this.removeCurrentContainer(visible);
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},
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methods: {
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getParent() {
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const { getContainer } = this.$props;
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if (getContainer) {
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if (typeof getContainer === 'string') {
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return document.querySelectorAll(getContainer)[0];
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}
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if (typeof getContainer === 'function') {
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return getContainer();
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}
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if (typeof getContainer === 'object' && getContainer instanceof window.HTMLElement) {
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return getContainer;
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}
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}
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return document.body;
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},
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getDomContainer() {
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if (windowIsUndefined) {
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return null;
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}
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if (!this.container) {
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this.container = document.createElement('div');
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const parent = this.getParent();
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if (parent) {
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parent.appendChild(this.container);
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}
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}
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this.setWrapperClassName();
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return this.container;
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},
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setWrapperClassName() {
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const { wrapperClassName } = this.$props;
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if (this.container && wrapperClassName && wrapperClassName !== this.container.className) {
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this.container.className = wrapperClassName;
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}
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},
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savePortal(c) {
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// Warning: don't rename _component
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// https://github.com/react-component/util/pull/65#discussion_r352407916
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this._component = c;
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},
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removeCurrentContainer() {
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this.container = null;
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this._component = null;
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},
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/**
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* Enhance ./switchScrollingEffect
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* 1. Simulate document body scroll bar with
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* 2. Record body has overflow style and recover when all of PortalWrapper invisible
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* 3. Disable body scroll when PortalWrapper has open
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*
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* @memberof PortalWrapper
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*/
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switchScrollingEffect() {
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if (openCount === 1 && !Object.keys(cacheOverflow).length) {
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switchScrollingEffect();
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// Must be set after switchScrollingEffect
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cacheOverflow = setStyle({
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overflow: 'hidden',
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overflowX: 'hidden',
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overflowY: 'hidden',
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});
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} else if (!openCount) {
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setStyle(cacheOverflow);
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cacheOverflow = {};
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switchScrollingEffect(true);
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}
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},
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},
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render() {
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const { children, forceRender, visible } = this.$props;
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let portal = null;
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const childProps = {
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getOpenCount: () => openCount,
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getContainer: this.getDomContainer,
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switchScrollingEffect: this.switchScrollingEffect,
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};
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if (forceRender || visible || this._component) {
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portal = (
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<Portal
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getContainer={this.getDomContainer}
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children={children(childProps)}
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ref={this.savePortal}
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></Portal>
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);
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}
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return portal;
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},
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};
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