@amaui/ui-react
Version:
UI for React
153 lines (152 loc) • 9.58 kB
JavaScript
import _objectWithoutProperties from "@babel/runtime/helpers/objectWithoutProperties";
import _defineProperty from "@babel/runtime/helpers/defineProperty";
const _excluded = ["onChange", "items", "image", "delay", "precise", "draggedIsElement", "isEqual", "getDraggingElement", "onDraggedElement", "onDragStart", "className", "children"];
function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }
function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }
import React from 'react';
import { debounce, equalDeep, is, isEnvironment } from '@amaui/utils';
import { style as styleMethod, useAmauiTheme } from '@amaui/style-react';
const useStyle = styleMethod(theme => ({
root: {}
}), {
name: 'amaui-DragAndDropList'
});
const DragAndDropList = /*#__PURE__*/React.forwardRef((props_, ref) => {
const theme = useAmauiTheme();
const props = React.useMemo(() => _objectSpread(_objectSpread(_objectSpread({}, theme?.ui?.elements?.all?.props?.default), theme?.ui?.elements?.amauiDragAndDropList?.props?.default), props_), [props_]);
const {
onChange: onChange_,
items,
image,
delay = 0,
precise = true,
draggedIsElement = true,
isEqual,
getDraggingElement,
onDraggedElement,
onDragStart: onDragStart_,
className,
children
} = props,
other = _objectWithoutProperties(props, _excluded);
const {
classes
} = useStyle();
const refs = {
root: React.useRef(undefined),
dragging: React.useRef(undefined),
rectDragged: React.useRef(undefined),
isDragging: React.useRef(),
previous: React.useRef(undefined)
};
const onChange = React.useMemo(() => {
return debounce((indexPrevious, indexNew) => onChange_(indexPrevious, indexNew), delay);
}, [onChange_, delay]);
React.useEffect(() => {
const onMouseUp = event => {
// in use case
// where onDragEnd is never emited
// due to original element having it
// has been removed from the dom
// prior to onDragEnd event is to be emited
// alternative way to provide a callback
// to dragging has ended
if (refs.isDragging.current) {
if (is('function', onDraggedElement)) onDraggedElement(null);
refs.isDragging.current = false;
}
};
const rootDocument = isEnvironment('browser') ? refs.root.current?.ownerDocument || window.document : undefined;
rootDocument.body.addEventListener('mouseup', onMouseUp);
rootDocument.body.addEventListener('touchend', onMouseUp);
return () => {
rootDocument.body.removeEventListener('mouseup', onMouseUp);
rootDocument.body.removeEventListener('touchend', onMouseUp);
};
}, [onDraggedElement]);
const img = React.useMemo(() => {
const rootDocument = isEnvironment('browser') ? refs.root.current?.ownerDocument || window.document : undefined;
const element = rootDocument.createElement('img');
element.src = is('string', image) ? image : `data:image/jpeg;base64,/9j/4AAQSkZJRgABAgEASABIAAD/2wBDAAEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQH/2wBDAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQH/wAARCAAWAC8DAREAAhEBAxEB/8QAHwAAAQUBAQEBAQEAAAAAAAAAAAECAwQFBgcICQoL/8QAtRAAAgEDAwIEAwUFBAQAAAF9AQIDAAQRBRIhMUEGE1FhByJxFDKBkaEII0KxwRVS0fAkM2JyggkKFhcYGRolJicoKSo0NTY3ODk6Q0RFRkdISUpTVFVWV1hZWmNkZWZnaGlqc3R1dnd4eXqDhIWGh4iJipKTlJWWl5iZmqKjpKWmp6ipqrKztLW2t7i5usLDxMXGx8jJytLT1NXW19jZ2uHi4+Tl5ufo6erx8vP09fb3+Pn6/8QAHwEAAwEBAQEBAQEBAQAAAAAAAAECAwQFBgcICQoL/8QAtREAAgECBAQDBAcFBAQAAQJ3AAECAxEEBSExBhJBUQdhcRMiMoEIFEKRobHBCSMzUvAVYnLRChYkNOEl8RcYGRomJygpKjU2Nzg5OkNERUZHSElKU1RVVldYWVpjZGVmZ2hpanN0dXZ3eHl6goOEhYaHiImKkpOUlZaXmJmaoqOkpaanqKmqsrO0tba3uLm6wsPExcbHyMnK0tPU1dbX2Nna4uPk5ebn6Onq8vP09fb3+Pn6/9oADAMBAAIRAxEAPwD+/igAoAKACgAoAKACgD8gtF+E3xs1/wD4UzrXiHxZ+1dZaj43/au+P/gj4r2Vt8RPjBo1np/7PsfiP42654IE+mxalFB4H8OzzeGvAlr4Z+IWjReH9dbQvE1noei+K10q+8N29l/LWD4Z4vx3+qeLx+Z+JdGvnHiXxvk/E1KGe8VYSlQ4Hjj+L8Zk/Ph44iMMnwM55fk1PL89wkcDjXgswpYPCZksNWwFOj7cq2Hj7eMYYNqng8NUot0qEm8Ty4eNSzt+8klOo50pc0eaDlKHMptyG2+Kml/8Id4f+NFz+1o3wN8JeLf2t/DOnan8MZPjbffFG81Xw18aYdI/Zw1Hx1rHw5gm+K3ijwpdfC9dUuvBvie/uNV8M+JdZh0bVvGt5f2cun3V3Tp8SYb+ysDxbU8TnwdlmaeJ+X0MRw7Li+txHVxOX8XRwvANfOcVkMJcS5jltThxYirlOY16mJy/MMXHCYrN61alKhUql6L55UFgvrE4YKbVX6uqKU6HNilTjVfsYTVaynBJThHmjTSd0ptK039seDSvhH8P/FN18ZH1L9pXwD8JdH8f+OdNu9WnufgFrHwx8RSXnxN1TVNb0O9m0r4ceJ/ir8GbnTdIju9Ney0+f4saPfXtl9o1TUbt5LwtDxVhhuF8jzKpxY8R4gZLwxhc7zihUxM6nBOK4ex0qvEOIxOMwdaeGyHMeJeFKmHwsauHlRoT4lwtatS58RXq8yk8C3WqQVC2FqVpU6bStiY1Y2pJRkr1YUa6crO79jJJ6JE/wmtf2kZv2kLEeLNa+Ltj4lX43/E678cx3+j/ABs1D4UXvwTsz44i8Eabpdxq+saZ+znYeGbvSJ/CR8Lal4I0i7+Ky+K4x/wkti8Uviq/t74Yp8fS4+o/2ni+KKOYLi/iKrnMa+F4vr8M1eEaTziOT4fDTxWKw/AdDL6mFnln9m4jJ8NV4lWZR/4UKLjLMq1MrPC/VXyRoOH1ekqdpYdVliH7P2jajF4pzUufnVSSo8nwP4E/1sr+nTxQoAKACgAoAKACgAD/2Q==`;
return element;
}, []);
const onDragStart = item => async event => {
event.dataTransfer.setData('text', item?.value !== undefined ? item.value : item);
if (image) event.dataTransfer.setDragImage(img, 0, 0);
refs.isDragging.current = true;
const dragging = is('function', getDraggingElement) ? getDraggingElement(event) : event.target;
if (onDragStart_) onDragStart_(item, event);
refs.dragging.current = draggedIsElement ? dragging : dragging?.dataset?.amauiDragAndDropListValue;
refs.rectDragged.current = {
height: dragging.clientHeight,
x: event.clientX - dragging.offsetLeft,
y: event.clientY - dragging.offsetTop
};
setTimeout(() => {
if (is('function', onDraggedElement)) onDraggedElement?.(item);
});
};
const onDragEnd = () => event => {
// clean up
refs.isDragging.current = false;
refs.rectDragged.current = null;
refs.dragging.current = null;
if (is('function', onDraggedElement)) onDraggedElement(null);
};
const onDragOver = () => event => {
event.preventDefault();
const rootDocument = isEnvironment('browser') ? refs.root.current?.ownerDocument || window.document : undefined;
const over = event.currentTarget;
const dragging = draggedIsElement ? refs.dragging.current : rootDocument.body.querySelector(`[data-amaui-drag-and-drop-list-value="${refs.dragging.current}"]`);
if (!(over && dragging)) return;
if (precise) {
if (over !== dragging) {
const rectOver = {
height: over.clientHeight,
x: over.offsetLeft,
y: over.offsetTop
};
const mousePosition = {
x: event.clientX - rectOver.x,
y: event.clientY - rectOver.y
};
const partBottom = Math.abs(refs.rectDragged.current.height - refs.rectDragged.current.y);
const partTop = refs.rectDragged.current.y;
const half = rectOver.height / 2;
const positionTopBottom = partBottom + mousePosition.y >= half ? 'bottom' : 'top';
const positionBottomTop = mousePosition.y - partTop <= half ? 'top' : 'bottom';
const overIndex = items.findIndex(item => isEqual ? isEqual(item, over.dataset.amauiDragAndDropListValue) : item === over.dataset.amauiDragAndDropListValue);
const draggedIndex = items.findIndex(item => isEqual ? isEqual(item, dragging.dataset.amauiDragAndDropListValue) : item === dragging.dataset.amauiDragAndDropListValue);
// if dragged is above over & bottom swap their indexes
// if dragged is below over && top swap their indexes
if (draggedIndex < overIndex && positionTopBottom === 'bottom' || draggedIndex > overIndex && positionBottomTop === 'top') {
if (!refs.previous.current || !equalDeep(refs.previous.current, [draggedIndex, overIndex])) {
onChange(draggedIndex, overIndex);
refs.previous.current = [draggedIndex, overIndex];
}
}
}
} else {
const overIndex = items.findIndex(item => isEqual ? isEqual(item, over.dataset.amauiDragAndDropListValue) : item === over.dataset.amauiDragAndDropListValue);
const draggedIndex = items.findIndex(item => isEqual ? isEqual(item, dragging.dataset.amauiDragAndDropListValue) : item === dragging.dataset.amauiDragAndDropListValue);
if (!refs.previous.current || !equalDeep(refs.previous.current, [draggedIndex, overIndex])) {
if (is('function', onChange)) onChange(draggedIndex, overIndex);
refs.previous.current = [draggedIndex, overIndex];
}
}
};
if (is('function', children)) return children({
ref: item => {
if (ref) {
if (is('function', ref)) ref(item);else ref.current = item;
}
refs.root.current = item;
},
onDragStart,
onDragOver,
onDragEnd
});
return /*#__PURE__*/React.createElement(React.Fragment, null, children);
});
DragAndDropList.displayName = 'amaui-DragAndDropList';
export default DragAndDropList;