zmp-ui
Version:
Zalo Mini App framework
182 lines • 6.71 kB
JavaScript
import _extends from "@babel/runtime/helpers/extends";
import _defineProperty from "@babel/runtime/helpers/defineProperty";
import _objectWithoutPropertiesLoose from "@babel/runtime/helpers/objectWithoutPropertiesLoose";
var _excluded = ["images", "visible", "onClose", "activeIndex", "maskStyle", "maskClassName"];
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 React, { useLayoutEffect, useMemo, useRef, useState } from "react";
import classNames from "clsx";
import { animated, useSpring, useTransition } from "@react-spring/web";
import { useDrag } from "@use-gesture/react";
import Image from "./Image";
import { getPrefixCls } from "../../utils/class";
import Mask from "../../common/modal-mask";
import { ImageViewerContext } from "./context";
import Button from "../button";
import Icon from "../icon";
var ImageViewer = /*#__PURE__*/React.forwardRef(function (props, ref) {
var images = props.images,
visible = props.visible,
onClose = props.onClose,
defaultActiveIndex = props.activeIndex,
maskStyle = props.maskStyle,
maskClassName = props.maskClassName,
rest = _objectWithoutPropertiesLoose(props, _excluded);
var _useState = useState(false),
isZoomed = _useState[0],
setIsZoomed = _useState[1];
var _useState2 = useState(defaultActiveIndex || 0),
activeIndex = _useState2[0],
setActiveIndex = _useState2[1];
var force = useRef(false);
var prevActiveIndex = useRef(defaultActiveIndex || 0);
var _useState3 = useState(!!visible),
animationVisible = _useState3[0],
setAnimationVisible = _useState3[1];
var _useState4 = useState(true),
showHeader = _useState4[0],
setShowHeader = _useState4[1];
var prefixCls = getPrefixCls("image-viewer");
var cls = classNames(prefixCls);
var contextValue = useMemo(function () {
return {
isZoomed: isZoomed,
setIsZoomed: setIsZoomed,
currentIndex: activeIndex,
showHeader: showHeader,
setShowHeader: setShowHeader
};
}, [isZoomed, activeIndex, showHeader]);
var style = useSpring({
scale: visible ? 1 : 0.5,
opacity: visible ? 1 : 0.5,
config: {
duration: 200
},
onRest: function onRest() {
if (!visible) {
setAnimationVisible(false);
}
}
});
var transitions = useTransition(activeIndex, {
key: activeIndex,
from: {
opacity: 0,
transform: activeIndex < prevActiveIndex.current ? "translate3d(-50%,0,0)" : "translate3d(50%,0,0)"
},
enter: {
opacity: 1,
transform: "translate3d(0%,0,0)",
onRest: function onRest() {
prevActiveIndex.current = activeIndex;
force.current = false;
},
config: {
duration: force.current ? 0 : 300
}
},
leave: {
opacity: 0,
transform: activeIndex < prevActiveIndex.current ? "translate3d(50%,0,0)" : "translate3d(-50%,0,0)",
config: {
duration: force.current ? 0 : 200
}
},
exitBeforeEnter: true
});
var bind = useDrag(function (_ref) {
var isDown = _ref.down,
_ref$movement = _ref.movement,
mx = _ref$movement[0];
if (isZoomed) {
return;
}
var totalImages = images.length;
if (mx > 0 && activeIndex === 0) {
return;
}
if (mx < 0 && activeIndex >= totalImages - 1) {
return;
}
if (!isDown && Math.abs(mx) > 100) {
if (mx > 0) {
setActiveIndex(activeIndex - 1);
} else {
setActiveIndex(activeIndex + 1);
}
}
}, {
filterTaps: true
});
useLayoutEffect(function () {
if (visible) {
if (defaultActiveIndex !== prevActiveIndex.current) {
force.current = true;
}
if (!Number.isNaN(defaultActiveIndex)) {
setActiveIndex(defaultActiveIndex || 0);
}
setAnimationVisible(visible);
}
}, [visible]);
var goToNextImage = function goToNextImage() {
setActiveIndex(function (curIndex) {
return Math.min(curIndex + 1, images.length);
});
};
var goToPrevImage = function goToPrevImage() {
setActiveIndex(function (curIndex) {
return Math.max(curIndex - 1, 0);
});
};
return /*#__PURE__*/React.createElement(ImageViewerContext.Provider, {
value: contextValue
}, /*#__PURE__*/React.createElement("div", _extends({
className: cls,
ref: ref
}, rest), /*#__PURE__*/React.createElement(Mask, {
visible: visible,
style: maskStyle,
className: maskClassName
}), visible && showHeader && /*#__PURE__*/React.createElement("div", {
className: prefixCls + "-header"
}, /*#__PURE__*/React.createElement("span", {
role: "presentation",
className: prefixCls + "-close-button",
onClick: onClose
}, "\u0110\xF3ng")), /*#__PURE__*/React.createElement(animated.div, {
style: _objectSpread({
display: animationVisible ? "block" : "none"
}, style),
className: prefixCls + "-container"
}, animationVisible && showHeader && images.length > 1 && !isZoomed && /*#__PURE__*/React.createElement(React.Fragment, null, /*#__PURE__*/React.createElement(Button, {
disabled: activeIndex === 0,
icon: /*#__PURE__*/React.createElement(Icon, {
icon: "zi-chevron-left"
}),
className: prefixCls + "-nav-btn " + prefixCls + "-nav-btn-prev",
size: "small",
onClick: goToPrevImage
}), /*#__PURE__*/React.createElement(Button, {
disabled: activeIndex === images.length - 1,
icon: /*#__PURE__*/React.createElement(Icon, {
icon: "zi-chevron-right"
}),
className: prefixCls + "-nav-btn " + prefixCls + "-nav-btn-next",
size: "small",
onClick: goToNextImage
})), animationVisible && transitions(function (transition, i) {
return /*#__PURE__*/React.createElement(animated.div, _extends({
className: prefixCls + "-images",
style: _objectSpread({
width: "100%",
height: "100%"
}, transition)
}, bind()), images[i] && /*#__PURE__*/React.createElement(Image, {
src: images[i].src,
alt: images[i].alt
}));
}))));
});
export default ImageViewer;