@douyinfe/semi-ui
Version:
A modern, comprehensive, flexible design system and UI library. Connect DesignOps & DevOps. Quickly build beautiful React apps. Maintained by Douyin-fe team.
238 lines • 8.45 kB
JavaScript
import _omit from "lodash/omit";
import _isEqual from "lodash/isEqual";
import _isObject from "lodash/isObject";
var __rest = this && this.__rest || function (s, e) {
var t = {};
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0) t[p] = s[p];
if (s != null && typeof Object.getOwnPropertySymbols === "function") for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {
if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i])) t[p[i]] = s[p[i]];
}
return t;
};
import React, { isValidElement } from "react";
import { PreviewContext } from "./previewContext";
import BaseComponent from "../_base/baseComponent";
import PropTypes from "prop-types";
import PreviewInner from "./previewInner";
import PreviewFoundation from '@douyinfe/semi-foundation/lib/es/image/previewFoundation';
import { getUuidShort } from '@douyinfe/semi-foundation/lib/es/utils/uuid';
import { cssClasses } from '@douyinfe/semi-foundation/lib/es/image/constants';
import '@douyinfe/semi-foundation/lib/es/image/image.css';
import cls from "classnames";
const prefixCls = cssClasses.PREFIX;
export default class Preview extends BaseComponent {
get adapter() {
return Object.assign({}, super.adapter);
}
constructor(props) {
super(props);
this.observerImages = () => {
if (this.previewObserver) {
// cancel the observation of all elements of the previous observer
this.previewObserver.disconnect();
} else {
this.previewObserver = new IntersectionObserver(entries => {
entries.forEach(item => {
var _a;
const src = (_a = item.target.dataset) === null || _a === void 0 ? void 0 : _a.src;
if (item.isIntersecting && src) {
item.target.src = src;
item.target.removeAttribute("data-src");
this.previewObserver.unobserve(item.target);
}
});
}, {
root: document.querySelector(`#${this.previewGroupId}`),
rootMargin: this.props.lazyLoadMargin
});
}
const allImgElement = document.querySelectorAll(`.${prefixCls}-img`);
allImgElement.forEach(item => this.previewObserver.observe(item));
};
this.handleVisibleChange = newVisible => {
this.foundation.handleVisibleChange(newVisible);
};
this.handleCurrentIndexChange = index => {
this.foundation.handleCurrentIndexChange(index);
};
this.loopImageIndex = () => {
const {
children
} = this.props;
let index = 0;
const srcListInChildren = [];
const titles = [];
const loop = children => {
return React.Children.map(children, child => {
var _a;
if (child && child.props && child.type) {
if (child.type.isSemiImage) {
const {
src,
preview,
alt
} = child.props;
if (preview) {
const previewSrc = _isObject(preview) ? (_a = preview.src) !== null && _a !== void 0 ? _a : src : src;
srcListInChildren.push(previewSrc);
titles.push(preview === null || preview === void 0 ? void 0 : preview.previewTitle);
return /*#__PURE__*/React.cloneElement(child, {
imageID: index++
});
}
return child;
}
}
if (child && child.props && child.props.children) {
return /*#__PURE__*/React.cloneElement(child, {
children: loop(child.props.children)
});
}
return child;
});
};
return {
srcListInChildren,
newChildren: loop(children),
titles
};
};
this.state = {
currentIndex: props.currentIndex || props.defaultCurrentIndex || 0,
visible: props.visible || props.currentDefaultVisible || false
};
this.foundation = new PreviewFoundation(this.adapter);
this.previewGroupId = getUuidShort({
prefix: "semi-image-preview-group",
length: 4
});
this.previewRef = /*#__PURE__*/React.createRef();
}
componentDidMount() {
this.props.lazyLoad && this.observerImages();
}
componentDidUpdate(prevProps) {
if (this.props.lazyLoad) {
const prevChildrenKeys = React.Children.toArray(prevProps.children).map(child => /*#__PURE__*/isValidElement(child) ? child.key : null);
const currChildrenKeys = React.Children.toArray(this.props.children).map(child => /*#__PURE__*/isValidElement(child) ? child.key : null);
if (!_isEqual(prevChildrenKeys, currChildrenKeys)) {
this.observerImages();
}
}
}
static getDerivedStateFromProps(props, state) {
const willUpdateStates = {};
if ("currentIndex" in props && props.currentIndex !== state.currentIndex) {
willUpdateStates.currentIndex = props.currentIndex;
}
if ("visible" in props && props.visible !== state.visible) {
willUpdateStates.visible = props.visible;
}
return willUpdateStates;
}
componentWillUnmount() {
if (this.previewObserver) {
this.previewObserver.disconnect();
this.previewObserver = null;
}
}
render() {
const _a = this.props,
{
src,
className,
style,
lazyLoad,
setDownloadName
} = _a,
restProps = __rest(_a, ["src", "className", "style", "lazyLoad", "setDownloadName"]);
const previewInnerProps = Object.assign(Object.assign({}, _omit(restProps, ['previewCls', 'previewStyle'])), {
className: restProps === null || restProps === void 0 ? void 0 : restProps.previewCls,
style: restProps === null || restProps === void 0 ? void 0 : restProps.previewStyle
});
const {
currentIndex,
visible
} = this.state;
const {
srcListInChildren,
newChildren,
titles
} = this.loopImageIndex();
const srcArr = Array.isArray(src) ? src : typeof src === "string" ? [src] : [];
const finalSrcList = [...srcArr, ...srcListInChildren];
return /*#__PURE__*/React.createElement(PreviewContext.Provider, {
value: {
isGroup: true,
previewSrc: finalSrcList,
titles: titles,
currentIndex,
visible,
lazyLoad,
previewObserver: this.previewObserver,
setCurrentIndex: this.handleCurrentIndexChange,
handleVisibleChange: this.handleVisibleChange,
setDownloadName: setDownloadName
}
}, /*#__PURE__*/React.createElement("div", {
id: this.previewGroupId,
style: style,
className: cls(`${prefixCls}-preview-group`, className)
}, newChildren), /*#__PURE__*/React.createElement(PreviewInner, Object.assign({}, previewInnerProps, {
ref: this.previewRef,
src: finalSrcList,
currentIndex: currentIndex,
visible: visible,
onVisibleChange: this.handleVisibleChange
})));
}
}
Preview.propTypes = {
style: PropTypes.object,
className: PropTypes.string,
visible: PropTypes.bool,
src: PropTypes.oneOfType([PropTypes.string, PropTypes.array]),
currentIndex: PropTypes.number,
defaultCurrentIndex: PropTypes.number,
defaultVisible: PropTypes.bool,
maskClosable: PropTypes.bool,
closable: PropTypes.bool,
zoomStep: PropTypes.number,
infinite: PropTypes.bool,
showTooltip: PropTypes.bool,
closeOnEsc: PropTypes.bool,
prevTip: PropTypes.string,
nextTip: PropTypes.string,
zoomInTip: PropTypes.string,
zoomOutTip: PropTypes.string,
downloadTip: PropTypes.string,
adaptiveTip: PropTypes.string,
originTip: PropTypes.string,
lazyLoad: PropTypes.bool,
lazyLoadMargin: PropTypes.string,
preLoad: PropTypes.bool,
preLoadGap: PropTypes.number,
previewCls: PropTypes.string,
previewStyle: PropTypes.object,
disableDownload: PropTypes.bool,
zIndex: PropTypes.number,
renderHeader: PropTypes.func,
renderPreviewMenu: PropTypes.func,
getPopupContainer: PropTypes.func,
onVisibleChange: PropTypes.func,
onChange: PropTypes.func,
onClose: PropTypes.func,
onZoomIn: PropTypes.func,
onZoomOut: PropTypes.func,
onPrev: PropTypes.func,
onNext: PropTypes.func,
onDownload: PropTypes.func,
onRotateLeft: PropTypes.func,
onRatioChange: PropTypes.func
};
Preview.defaultProps = {
src: [],
lazyLoad: true,
lazyLoadMargin: "0px 100px 100px 0px",
closable: true
};