Preview.js
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import _objectSpread from "@babel/runtime/helpers/esm/objectSpread2";
import _defineProperty from "@babel/runtime/helpers/esm/defineProperty";
import _slicedToArray from "@babel/runtime/helpers/esm/slicedToArray";
import _objectWithoutProperties from "@babel/runtime/helpers/esm/objectWithoutProperties";
import * as React from 'react';
import Dialog from 'rc-dialog';
import RotateLeftOutlined from '@ant-design/icons/RotateLeftOutlined';
import RotateRightOutlined from '@ant-design/icons/RotateRightOutlined';
import ZoomInOutlined from '@ant-design/icons/ZoomInOutlined';
import ZoomOutOutlined from '@ant-design/icons/ZoomOutOutlined';
import CloseOutlined from '@ant-design/icons/CloseOutlined';
import LeftOutlined from '@ant-design/icons/LeftOutlined';
import RightOutlined from '@ant-design/icons/RightOutlined';
import classnames from 'classnames';
import addEventListener from "rc-util/es/Dom/addEventListener";
import { getOffset } from "rc-util/es/Dom/css";
import { warning } from "rc-util/es/warning";
import useFrameSetState from './hooks/useFrameSetState';
import usePreviewIndex from './hooks/usePreviewIndex';
import getFixScaleEleTransPosition from './getFixScaleEleTransPosition';
import { context } from './PreviewGroup';
var useState = React.useState;
var initialPosition = {
x: 0,
y: 0
};
var Preview = function Preview(props) {
var prefixCls = props.prefixCls,
src = props.src,
alt = props.alt,
onClose = props.onClose,
afterClose = props.afterClose,
visible = props.visible,
restProps = _objectWithoutProperties(props, ["prefixCls", "src", "alt", "onClose", "afterClose", "visible"]);
var _useState = useState(1),
_useState2 = _slicedToArray(_useState, 2),
scale = _useState2[0],
setScale = _useState2[1];
var _useState3 = useState(0),
_useState4 = _slicedToArray(_useState3, 2),
rotate = _useState4[0],
setRotate = _useState4[1];
var _useFrameSetState = useFrameSetState(initialPosition),
_useFrameSetState2 = _slicedToArray(_useFrameSetState, 2),
position = _useFrameSetState2[0],
setPosition = _useFrameSetState2[1];
var imgRef = React.useRef();
var originPositionRef = React.useRef({
originX: 0,
originY: 0,
deltaX: 0,
deltaY: 0
});
var _React$useState = React.useState(false),
_React$useState2 = _slicedToArray(_React$useState, 2),
isMoving = _React$useState2[0],
setMoving = _React$useState2[1];
var _React$useContext = React.useContext(context),
previewUrls = _React$useContext.previewUrls;
var urls = previewUrls && previewUrls.length ? previewUrls : [src];
var _usePreviewIndex = usePreviewIndex(src, urls),
_usePreviewIndex2 = _slicedToArray(_usePreviewIndex, 2),
index = _usePreviewIndex2[0],
setIndex = _usePreviewIndex2[1];
var onAfterClose = function onAfterClose() {
setScale(1);
setRotate(0);
setPosition(initialPosition);
};
var onZoomIn = function onZoomIn() {
setScale(function (value) {
return value + 1;
});
setPosition(initialPosition);
};
var onZoomOut = function onZoomOut() {
if (scale > 1) {
setScale(function (value) {
return value - 1;
});
}
setPosition(initialPosition);
};
var onRotateRight = function onRotateRight() {
setRotate(function (value) {
return value + 90;
});
};
var onRotateLeft = function onRotateLeft() {
setRotate(function (value) {
return value - 90;
});
};
var onSwitchLeft = function onSwitchLeft(event) {
event.preventDefault(); // Without this mask close will abnormal
event.stopPropagation();
if (index > 0) {
onAfterClose();
setIndex(index - 1);
}
};
var onSwitchRight = function onSwitchRight(event) {
event.preventDefault(); // Without this mask close will abnormal
event.stopPropagation();
if (index < urls.length - 1) {
onAfterClose();
setIndex(index + 1);
}
};
var wrapClassName = classnames(_defineProperty({}, "".concat(prefixCls, "-moving"), isMoving));
var toolClassName = "".concat(prefixCls, "-operations-operation");
var iconClassName = "".concat(prefixCls, "-operations-icon");
var tools = [{
Icon: CloseOutlined,
onClick: onClose,
type: 'close'
}, {
Icon: ZoomInOutlined,
onClick: onZoomIn,
type: 'zoomIn'
}, {
Icon: ZoomOutOutlined,
onClick: onZoomOut,
type: 'zoomOut',
disabled: scale === 1
}, {
Icon: RotateRightOutlined,
onClick: onRotateRight,
type: 'rotateRight'
}, {
Icon: RotateLeftOutlined,
onClick: onRotateLeft,
type: 'rotateLeft'
}];
var onMouseUp = function onMouseUp() {
if (visible && isMoving) {
var width = imgRef.current.offsetWidth * scale;
var height = imgRef.current.offsetHeight * scale;
var _getOffset = getOffset(imgRef.current),
left = _getOffset.left,
top = _getOffset.top;
var isRotate = rotate % 180 !== 0;
setMoving(false);
var fixState = getFixScaleEleTransPosition(isRotate ? height : width, isRotate ? width : height, left, top);
if (fixState) {
setPosition(_objectSpread({}, fixState));
}
}
};
var onMouseDown = function onMouseDown(event) {
event.preventDefault(); // Without this mask close will abnormal
event.stopPropagation();
originPositionRef.current.deltaX = event.pageX - position.x;
originPositionRef.current.deltaY = event.pageY - position.y;
originPositionRef.current.originX = position.x;
originPositionRef.current.originY = position.y;
setMoving(true);
};
var onMouseMove = function onMouseMove(event) {
if (visible && isMoving) {
setPosition({
x: event.pageX - originPositionRef.current.deltaX,
y: event.pageY - originPositionRef.current.deltaY
});
}
};
React.useEffect(function () {
var onTopMouseUpListener;
var onTopMouseMoveListener;
var onMouseUpListener = addEventListener(window, 'mouseup', onMouseUp, false);
var onMouseMoveListener = addEventListener(window, 'mousemove', onMouseMove, false);
try {
// Resolve if in iframe lost event
/* istanbul ignore next */
if (window.top !== window.self) {
onTopMouseUpListener = addEventListener(window.top, 'mouseup', onMouseUp, false);
onTopMouseMoveListener = addEventListener(window.top, 'mousemove', onMouseMove, false);
}
} catch (error) {
/* istanbul ignore next */
warning(false, "[rc-image] ".concat(error));
}
return function () {
onMouseUpListener.remove();
onMouseMoveListener.remove();
/* istanbul ignore next */
if (onTopMouseUpListener) onTopMouseUpListener.remove();
/* istanbul ignore next */
if (onTopMouseMoveListener) onTopMouseMoveListener.remove();
if (!visible) {
setIndex(urls.indexOf(src));
}
};
}, [visible, isMoving]);
return /*#__PURE__*/React.createElement(Dialog, Object.assign({}, restProps, {
transitionName: "zoom",
maskTransitionName: "fade",
closable: false,
keyboard: true,
prefixCls: prefixCls,
onClose: onClose,
afterClose: onAfterClose,
visible: visible,
wrapClassName: wrapClassName
}), /*#__PURE__*/React.createElement("ul", {
className: "".concat(prefixCls, "-operations")
}, tools.map(function (_ref) {
var Icon = _ref.Icon,
onClick = _ref.onClick,
type = _ref.type,
disabled = _ref.disabled;
return /*#__PURE__*/React.createElement("li", {
className: classnames(toolClassName, _defineProperty({}, "".concat(prefixCls, "-operations-operation-disabled"), !!disabled)),
onClick: onClick,
key: type
}, /*#__PURE__*/React.createElement(Icon, {
className: iconClassName
}));
})), /*#__PURE__*/React.createElement("div", {
className: "".concat(prefixCls, "-img-wrapper"),
style: {
transform: "translate3d(".concat(position.x, "px, ").concat(position.y, "px, 0)")
}
}, /*#__PURE__*/React.createElement("img", {
onMouseDown: onMouseDown,
ref: imgRef,
className: "".concat(prefixCls, "-img"),
src: urls[index],
alt: alt,
style: {
transform: "scale3d(".concat(scale, ", ").concat(scale, ", 1) rotate(").concat(rotate, "deg)")
}
})), urls.length > 1 ? /*#__PURE__*/React.createElement("div", {
className: classnames("".concat(prefixCls, "-switch-left"), _defineProperty({}, "".concat(prefixCls, "-switch-left-disabled"), index <= 0)),
onClick: onSwitchLeft
}, /*#__PURE__*/React.createElement(LeftOutlined, null)) : null, urls.length > 1 ? /*#__PURE__*/React.createElement("div", {
className: classnames("".concat(prefixCls, "-switch-right"), _defineProperty({}, "".concat(prefixCls, "-switch-right-disabled"), index >= urls.length - 1)),
onClick: onSwitchRight
}, /*#__PURE__*/React.createElement(RightOutlined, null)) : null);
};
export default Preview;