AntdDraggableModal.js
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import React from 'react';
import { Modal } from 'antd';
import './AntdDraggableModal/antDraggle.less';
class AntDraggableModal extends React.Component {
constructor(props) {
super(props);
this.simpleClass = Math.random().toString(36).substring(2);
this.state = {
isDrop: false,
// eslint-disable-next-line react/no-unused-state
offsetLeft: 0,
// eslint-disable-next-line react/no-unused-state
offsetTop: 0,
realizeHeight: 0,
modalHeight: 0,
};
this.deltaX = 0;
this.deltaY = 0;
this.contain = {};
this.antModal = {};
}
// eslint-disable-next-line react/sort-comp
handleMove = (event) => {
if (this.state.isDrop) {
this.antModal.style.margin = 0;
this.antModal.style.padding = 0;
const left = event.pageX - this.deltaX;
const top = event.pageY - this.deltaY;
// if (left < 0) {
// left = 0;
// } else if (left > (document.offsetWidth - this.antModal.offsetWidth)) {
// left = document.offsetWidth - this.antModal.offsetWidth;
// }
// if (top < 0) {
// top = 0;
// } else if (top > (document.offsetHeight - this.antModal.offsetHeight)) {
// top = document.offsetHeight - this.antModal.offsetHeight;
// }
this.antModal.style.left = `${left}px`;
this.antModal.style.top = `${top}px`;
}
};
addResizeListener = () => {
document.addEventListener('mousedown', this.handleResize);
}
handleResize = (downEl) => {
const ableList = ['resize-s', 'resize-sw', 'resize-se'];
if (ableList.indexOf(downEl.target.className) === -1) {
return;
}
// const modalContent = document.getElementsByClassName('ant-modal-content')[0];
const modalContent = downEl.target.parentNode.parentNode;
const modalContentHeight = modalContent.offsetHeight;
if (!this.state.modalHeight) {
this.setState({
modalHeight: modalContentHeight,
});
}
const modalContentWidth = modalContent.offsetWidth;
const modalContentLeft = modalContent.offsetLeft;
let resizedHeight = 0;
let resizeYPx = 0;
let resizeXPx = 0;
document.onmousemove = (moveEvent) => {
resizeYPx = moveEvent.pageY - downEl.pageY;
resizeXPx = moveEvent.pageX - downEl.pageX;
resizedHeight = this.state.modalHeight + this.state.realizeHeight + resizeYPx;
if (resizedHeight <= this.state.modalHeight) {
return false;
}
switch (downEl.target.className) {
case 'resize-s':
modalContent.style.height = `${resizedHeight}px`;
break;
case 'resize-sw':
modalContent.style.height = `${resizedHeight}px`;
modalContent.style.width = `${modalContentWidth - resizeXPx}px`;
modalContent.style.left = `${modalContentLeft + resizeXPx}px`;
break;
case 'resize-se':
modalContent.style.height = `${resizedHeight}px`;
modalContent.style.width = `${modalContentWidth + resizeXPx}px`;
break;
default:
break;
}
};
document.onmouseup = () => {
document.onmousemove = null;
document.onmouseup = null;
if (this.state.realizeHeight + resizeYPx <= 0 && this.props.onSaveState) {
this.setState({
realizeHeight: 0,
});
this.props.onSaveState({ realizeHeight: this.state.realizeHeight });
return;
}
if (this.props.onSaveState && resizeYPx !== 0) {
this.setState((prev) => {
return {
realizeHeight: prev.realizeHeight + resizeYPx,
};
});
this.props.onSaveState({ realizeHeight: this.state.realizeHeight });
}
};
}
initialEvent = (visible) => {
const { title } = this.props;
if (title && visible) {
setTimeout(() => {
window.removeEventListener('mouseup', this.removeUp, false);
// eslint-disable-next-line prefer-destructuring
this.contain = document.getElementsByClassName(this.simpleClass)[0];
// eslint-disable-next-line prefer-destructuring
this.header = this.contain.getElementsByClassName('ant-modal-header')[0];
this.header.style.cursor = 'all-scroll';
// eslint-disable-next-line prefer-destructuring
this.antModal = this.contain.getElementsByClassName('ant-modal')[0];
this.header.onmousedown = (e) => {
const disx = e.pageX - this.antModal.offsetLeft;
const disy = e.pageY - this.antModal.offsetTop;
this.deltaX = disx;
this.deltaY = disy;
this.setState({
isDrop: true,
});
document.body.onselectstart = () => false;
window.addEventListener('mousemove', this.handleMove.bind(this), false);
};
window.addEventListener('mouseup', this.removeUp, false);
this.addResizeListener();
}, 0);
}
};
removeUp = () => {
this.setState({ isDrop: false });
document.body.onselectstart = () => true;
};
componentDidMount() {
const { visible = false, open = false } = this.props;
this.initialEvent(open || visible);
}
componentWillUnmount() {
window.removeEventListener('mousedown', this.handleResize, false);
window.removeEventListener('mouseup', this.removeUp, false);
if (this.props.onSaveState) {
this.props.onSaveState({ realizeHeight: 0 });
}
}
render() {
const {
children, wrapClassName, pageLoading, forbidResize, ...other
} = this.props;
const wrapModalClassName = wrapClassName ? `${wrapClassName} ${this.simpleClass}` : `${this.simpleClass}`;
return (
<Modal
{...other}
maskClosable={false}
keyboard
wrapClassName={wrapModalClassName}
>
{children}
{!forbidResize && <div className="resize-s" />}
{!forbidResize && <div className="resize-sw" />}
{!forbidResize && <div className="resize-se" />}
</Modal>
);
}
}
export default AntDraggableModal;