antd
Version:
An enterprise-class UI design language and React components implementation
205 lines (204 loc) • 7.63 kB
JavaScript
"use client";
import React, { useState } from 'react';
import DownOutlined from "@ant-design/icons/es/icons/DownOutlined";
import LeftOutlined from "@ant-design/icons/es/icons/LeftOutlined";
import RightOutlined from "@ant-design/icons/es/icons/RightOutlined";
import UpOutlined from "@ant-design/icons/es/icons/UpOutlined";
import { useEvent } from '@rc-component/util';
import useLayoutEffect from "@rc-component/util/es/hooks/useLayoutEffect";
import { clsx } from 'clsx';
function getValidNumber(num) {
return typeof num === 'number' && !Number.isNaN(num) && Number.isFinite(num) ? Math.round(num) : 0;
}
const SplitBar = props => {
const {
prefixCls,
vertical,
index,
active,
ariaNow,
ariaMin,
ariaMax,
resizable,
draggerIcon,
draggerStyle,
draggerClassName,
collapsibleIcon,
startCollapsible,
endCollapsible,
onOffsetStart,
onOffsetUpdate,
onOffsetEnd,
onCollapse,
lazy,
containerSize,
showStartCollapsibleIcon,
showEndCollapsibleIcon
} = props;
const splitBarPrefixCls = `${prefixCls}-bar`;
// ======================== Resize ========================
const [startPos, setStartPos] = useState(null);
const [constrainedOffset, setConstrainedOffset] = useState(0);
const constrainedOffsetX = vertical ? 0 : constrainedOffset;
const constrainedOffsetY = vertical ? constrainedOffset : 0;
const onMouseDown = e => {
if (resizable && e.currentTarget) {
setStartPos([e.pageX, e.pageY]);
onOffsetStart(index);
}
};
const onTouchStart = e => {
if (resizable && e.touches.length === 1) {
const touch = e.touches[0];
setStartPos([touch.pageX, touch.pageY]);
onOffsetStart(index);
}
};
// Updated constraint calculation
const getConstrainedOffset = rawOffset => {
const currentPos = containerSize * ariaNow / 100;
const newPos = currentPos + rawOffset;
// Calculate available space
const minAllowed = Math.max(0, containerSize * ariaMin / 100);
const maxAllowed = Math.min(containerSize, containerSize * ariaMax / 100);
// Constrain new position within bounds
const clampedPos = Math.max(minAllowed, Math.min(maxAllowed, newPos));
return clampedPos - currentPos;
};
const handleLazyMove = useEvent((offsetX, offsetY) => {
const constrainedOffsetValue = getConstrainedOffset(vertical ? offsetY : offsetX);
setConstrainedOffset(constrainedOffsetValue);
});
const handleLazyEnd = useEvent(() => {
onOffsetUpdate(index, constrainedOffsetX, constrainedOffsetY, true);
setConstrainedOffset(0);
onOffsetEnd(true);
});
const getVisibilityClass = mode => {
switch (mode) {
case true:
return `${splitBarPrefixCls}-collapse-bar-always-visible`;
case false:
return `${splitBarPrefixCls}-collapse-bar-always-hidden`;
case 'auto':
return `${splitBarPrefixCls}-collapse-bar-hover-only`;
}
};
useLayoutEffect(() => {
if (!startPos) {
return;
}
const onMouseMove = e => {
const {
pageX,
pageY
} = e;
const offsetX = pageX - startPos[0];
const offsetY = pageY - startPos[1];
if (lazy) {
handleLazyMove(offsetX, offsetY);
} else {
onOffsetUpdate(index, offsetX, offsetY);
}
};
const onMouseUp = () => {
if (lazy) {
handleLazyEnd();
} else {
onOffsetEnd();
}
setStartPos(null);
};
const handleTouchMove = e => {
if (e.touches.length === 1) {
const touch = e.touches[0];
const offsetX = touch.pageX - startPos[0];
const offsetY = touch.pageY - startPos[1];
if (lazy) {
handleLazyMove(offsetX, offsetY);
} else {
onOffsetUpdate(index, offsetX, offsetY);
}
}
};
const handleTouchEnd = () => {
if (lazy) {
handleLazyEnd();
} else {
onOffsetEnd();
}
setStartPos(null);
};
const eventHandlerMap = {
mousemove: onMouseMove,
mouseup: onMouseUp,
touchmove: handleTouchMove,
touchend: handleTouchEnd
};
for (const [event, handler] of Object.entries(eventHandlerMap)) {
// eslint-disable-next-line react-web-api/no-leaked-event-listener
window.addEventListener(event, handler);
}
return () => {
for (const [event, handler] of Object.entries(eventHandlerMap)) {
window.removeEventListener(event, handler);
}
};
}, [startPos, index, lazy]);
const transformStyle = {
[`--${splitBarPrefixCls}-preview-offset`]: `${constrainedOffset}px`
};
// ======================== Render ========================
const [startIcon, endIcon, startCustomize, endCustomize] = React.useMemo(() => {
let startIcon = null;
let endIcon = null;
const startCustomize = collapsibleIcon?.start !== undefined;
const endCustomize = collapsibleIcon?.end !== undefined;
if (vertical) {
startIcon = startCustomize ? collapsibleIcon.start : /*#__PURE__*/React.createElement(UpOutlined, null);
endIcon = endCustomize ? collapsibleIcon.end : /*#__PURE__*/React.createElement(DownOutlined, null);
} else {
startIcon = startCustomize ? collapsibleIcon.start : /*#__PURE__*/React.createElement(LeftOutlined, null);
endIcon = endCustomize ? collapsibleIcon.end : /*#__PURE__*/React.createElement(RightOutlined, null);
}
return [startIcon, endIcon, startCustomize, endCustomize];
}, [collapsibleIcon, vertical]);
return /*#__PURE__*/React.createElement("div", {
className: splitBarPrefixCls,
role: "separator",
"aria-valuenow": getValidNumber(ariaNow),
"aria-valuemin": getValidNumber(ariaMin),
"aria-valuemax": getValidNumber(ariaMax)
}, lazy && (/*#__PURE__*/React.createElement("div", {
className: clsx(`${splitBarPrefixCls}-preview`, {
[`${splitBarPrefixCls}-preview-active`]: !!constrainedOffset
}),
style: transformStyle
})), /*#__PURE__*/React.createElement("div", {
style: draggerStyle,
className: clsx(`${splitBarPrefixCls}-dragger`, {
[`${splitBarPrefixCls}-dragger-disabled`]: !resizable,
[`${splitBarPrefixCls}-dragger-active`]: active,
[`${splitBarPrefixCls}-dragger-customize`]: draggerIcon !== undefined
}, draggerClassName?.default, active && draggerClassName?.active),
onMouseDown: onMouseDown,
onTouchStart: onTouchStart
}, draggerIcon !== undefined ? (/*#__PURE__*/React.createElement("div", {
className: clsx(`${splitBarPrefixCls}-dragger-icon`)
}, draggerIcon)) : null), startCollapsible && (/*#__PURE__*/React.createElement("div", {
className: clsx(`${splitBarPrefixCls}-collapse-bar`, `${splitBarPrefixCls}-collapse-bar-start`, {
[`${splitBarPrefixCls}-collapse-bar-customize`]: startCustomize
}, getVisibilityClass(showStartCollapsibleIcon)),
onClick: () => onCollapse(index, 'start')
}, /*#__PURE__*/React.createElement("span", {
className: clsx(`${splitBarPrefixCls}-collapse-icon`, `${splitBarPrefixCls}-collapse-start`)
}, startIcon))), endCollapsible && (/*#__PURE__*/React.createElement("div", {
className: clsx(`${splitBarPrefixCls}-collapse-bar`, `${splitBarPrefixCls}-collapse-bar-end`, {
[`${splitBarPrefixCls}-collapse-bar-customize`]: endCustomize
}, getVisibilityClass(showEndCollapsibleIcon)),
onClick: () => onCollapse(index, 'end')
}, /*#__PURE__*/React.createElement("span", {
className: clsx(`${splitBarPrefixCls}-collapse-icon`, `${splitBarPrefixCls}-collapse-end`)
}, endIcon))));
};
export default SplitBar;