zarm
Version:
基于 React 的移动端UI库
230 lines (196 loc) • 8.63 kB
JavaScript
import _extends from "@babel/runtime/helpers/extends";
import _toConsumableArray from "@babel/runtime/helpers/toConsumableArray";
import _defineProperty from "@babel/runtime/helpers/defineProperty";
import _slicedToArray from "@babel/runtime/helpers/slicedToArray";
var _window, _window2, _window3, _window4, _window5, _window6;
function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
import { useDrag } from '@use-gesture/react';
import { createBEM } from '@zarm-design/bem';
import React, { useEffect, useState } from 'react';
import Button from '../button';
import Carousel from '../carousel';
import { ConfigContext } from '../config-provider';
import Loading from '../loading';
import PinchZoom from '../pinch-zoom';
import Popup from '../popup';
import { canUseDOM } from '../utils/dom';
import formatImages from './utils/formatImages';
import LOAD_STATUS from './utils/loadStatus';
import showOriginButton from './utils/showOriginButton';
var imageStyle = {
maxWidth: canUseDOM && ((_window = window) === null || _window === void 0 ? void 0 : _window.innerWidth) <= ((_window2 = window) === null || _window2 === void 0 ? void 0 : _window2.innerHeight) ? (_window3 = window) === null || _window3 === void 0 ? void 0 : _window3.innerWidth : undefined,
maxHeight: canUseDOM && ((_window4 = window) === null || _window4 === void 0 ? void 0 : _window4.innerHeight) <= ((_window5 = window) === null || _window5 === void 0 ? void 0 : _window5.innerWidth) ? (_window6 = window) === null || _window6 === void 0 ? void 0 : _window6.innerHeight : undefined
};
var Content = function Content(props) {
var minScale = props.minScale,
maxScale = props.maxScale,
imgSrc = props.imgSrc;
var _useState = useState(false),
_useState2 = _slicedToArray(_useState, 2),
loaded = _useState2[0],
setLoaded = _useState2[1];
var style = loaded ? _objectSpread(_objectSpread({}, imageStyle), {}, {
display: 'block'
}) : imageStyle;
var _React$useContext = React.useContext(ConfigContext),
prefixCls = _React$useContext.prefixCls;
var bem = createBEM('image-preview', {
prefixCls: prefixCls
});
return /*#__PURE__*/React.createElement(React.Fragment, null, !loaded ? /*#__PURE__*/React.createElement("div", {
className: bem('loading')
}, /*#__PURE__*/React.createElement(Loading, {
type: "spinner",
size: "lg"
})) : null, /*#__PURE__*/React.createElement(PinchZoom, {
minScale: minScale,
maxScale: maxScale
}, /*#__PURE__*/React.createElement("img", {
src: imgSrc,
alt: "",
draggable: false,
style: style,
onLoad: function onLoad() {
return setLoaded(true);
}
})));
};
var ImagePreview = /*#__PURE__*/React.forwardRef(function (props, ref) {
var visible = props.visible,
activeIndex = props.activeIndex,
onClose = props.onClose,
showPagination = props.showPagination,
minScale = props.minScale,
maxScale = props.maxScale,
className = props.className,
style = props.style,
mountContainer = props.mountContainer,
title = props.title;
var _useState3 = useState(formatImages(props.images)),
_useState4 = _slicedToArray(_useState3, 2),
images = _useState4[0],
setImages = _useState4[1];
var _useState5 = useState(activeIndex),
_useState6 = _slicedToArray(_useState5, 2),
currentIndex = _useState6[0],
setCurrentIndex = _useState6[1];
var _React$useContext2 = React.useContext(ConfigContext),
prefixCls = _React$useContext2.prefixCls,
locale = _React$useContext2.locale;
var bem = createBEM('image-preview', {
prefixCls: prefixCls
});
useEffect(function () {
setImages(formatImages(props.images));
}, [props.images, visible]);
useEffect(function () {
setCurrentIndex(activeIndex);
}, [activeIndex]);
var onChange = function onChange(index) {
var _props$onChange;
setCurrentIndex(index);
(_props$onChange = props.onChange) === null || _props$onChange === void 0 ? void 0 : _props$onChange.call(props, index);
};
var loadOrigin = function loadOrigin(event) {
var _images$currentIndex = images[currentIndex],
originSrc = _images$currentIndex.originSrc,
loaded = _images$currentIndex.loaded;
if (loaded !== LOAD_STATUS.before || !originSrc) {
return;
}
var newImages = _toConsumableArray(images);
newImages[currentIndex].loaded = LOAD_STATUS.start;
setImages(newImages);
var img = new Image();
img.onload = function () {
var loadImages = _toConsumableArray(images);
loadImages[currentIndex].loaded = LOAD_STATUS.end;
loadImages[currentIndex].src = originSrc;
setImages(loadImages);
setTimeout(function () {
var loadAfeterImages = _toConsumableArray(images);
loadAfeterImages[currentIndex].loaded = LOAD_STATUS.after;
setImages(loadAfeterImages);
}, 0);
};
img.src = originSrc;
event.stopPropagation();
return false;
};
var bindEvent = useDrag(function (state) {
if (state.tap && state.elapsedTime > 0) {
onClose === null || onClose === void 0 ? void 0 : onClose();
}
});
var loadEvent = useDrag(function (state) {
if (state.tap && state.elapsedTime > 0) {
loadOrigin(state.event);
}
});
var renderImages = function renderImages() {
return images.map(function (item, i) {
return /*#__PURE__*/React.createElement("div", {
className: bem('item'),
key: +i
}, /*#__PURE__*/React.createElement(Content, {
imgSrc: item.src,
minScale: minScale,
maxScale: maxScale
}));
});
};
var renderPagination = function renderPagination() {
if (visible && showPagination && images && images.length > 1) {
return /*#__PURE__*/React.createElement("div", _extends({
className: bem('pagination')
}, bindEvent()), currentIndex + 1, " / ", images === null || images === void 0 ? void 0 : images.length);
}
return null;
};
var renderOriginButton = function renderOriginButton() {
if ((images === null || images === void 0 ? void 0 : images.length) === 0) return;
var _images = images === null || images === void 0 ? void 0 : images[currentIndex || 0],
loaded = _images.loaded;
if (loaded && showOriginButton(images, currentIndex) && loaded !== LOAD_STATUS.after && visible) {
var _locale$ImagePreview;
return /*#__PURE__*/React.createElement(Button, _extends({
size: "xs",
loading: loaded === LOAD_STATUS.start
}, loadEvent()), (locale === null || locale === void 0 ? void 0 : locale.ImagePreview) && (locale === null || locale === void 0 ? void 0 : (_locale$ImagePreview = locale.ImagePreview) === null || _locale$ImagePreview === void 0 ? void 0 : _locale$ImagePreview[loaded]));
}
return null;
};
return /*#__PURE__*/React.createElement(Popup, {
className: bem([className]),
style: style,
direction: "center",
visible: visible,
mountContainer: mountContainer,
maskOpacity: 1
}, /*#__PURE__*/React.createElement(React.Fragment, null, /*#__PURE__*/React.createElement("div", {
className: bem('title')
}, title), /*#__PURE__*/React.createElement("div", _extends({
ref: ref,
className: bem('content')
}, bindEvent()), visible && (images !== null && images !== void 0 && images.length ? /*#__PURE__*/React.createElement(Carousel, {
showPagination: false,
onChange: onChange,
activeIndex: currentIndex,
swipeable: true
}, renderImages()) : /*#__PURE__*/React.createElement(Loading, {
type: "spinner",
size: "lg"
}))), /*#__PURE__*/React.createElement("div", {
className: bem('footer')
}, renderOriginButton(), renderPagination())));
});
ImagePreview.displayName = 'ImagePreview';
ImagePreview.defaultProps = {
activeIndex: 0,
showPagination: true,
visible: false,
minScale: 1,
maxScale: 3
};
export default ImagePreview;