@orca-fe/transformer/es/TransformerBox/TransformerBox.js

Transformer Container

var _excluded = ["className", "children", "bounds", "onBoundsChange", "defaultBounds", "disabled", "minDragDistance", "onDragBefore", "onChangeEnd", "onChangeStart", "onClickFixed", "checked", "style", "controlledMode", "portal", "limitBounds", "rotateEnabled"];
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; }
function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == typeof i ? i : String(i); }
function _toPrimitive(t, r) { if ("object" != typeof t || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != typeof i) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }
function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i]; return arr2; }
function _iterableToArrayLimit(r, l) { var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (null != t) { var e, n, i, u, a = [], f = !0, o = !1; try { if (i = (t = t.call(r)).next, 0 === l) { if (Object(t) !== t) return; f = !1; } else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0); } catch (r) { o = !0, n = r; } finally { try { if (!f && null != t.return && (u = t.return(), Object(u) !== u)) return; } finally { if (o) throw n; } } return a; } }
function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
function _objectWithoutProperties(source, excluded) { if (source == null) return {}; var target = _objectWithoutPropertiesLoose(source, excluded); var key, i; if (Object.getOwnPropertySymbols) { var sourceSymbolKeys = Object.getOwnPropertySymbols(source); for (i = 0; i < sourceSymbolKeys.length; i++) { key = sourceSymbolKeys[i]; if (excluded.indexOf(key) >= 0) continue; if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue; target[key] = source[key]; } } return target; }
function _objectWithoutPropertiesLoose(source, excluded) { if (source == null) return {}; var target = {}; var sourceKeys = Object.keys(source); var key, i; for (i = 0; i < sourceKeys.length; i++) { key = sourceKeys[i]; if (excluded.indexOf(key) >= 0) continue; target[key] = source[key]; } return target; }
import React, { useContext, useRef, useState } from 'react';
import cn from 'classnames';
import { useControllableValue, useDebounceFn, useEventListener, useMemoizedFn } from 'ahooks';
import { usePan } from '@orca-fe/hooks';
import ReactDOM from 'react-dom';
import { roundBy } from '@orca-fe/tools';
import { calcBoundsChange, calcLimitBounds, getPointByEvent, getPointOffset, getResizeMode } from "./utils";
import TransformerBoxContext from "./TransformerBoxContext";
import useStyles from "./TransformerBox.style";
import { jsx as _jsx } from "react/jsx-runtime";
import { jsxs as _jsxs } from "react/jsx-runtime";
var ef = () => {};
var roundBy45 = roundBy(45);
function mod(n, m) {
  return (n % m + m) % m;
}
var TransformerBox = props => {
  var _props$className = props.className,
    className = _props$className === void 0 ? '' : _props$className,
    children = props.children,
    nouse = props.bounds,
    onBoundsChange = props.onBoundsChange,
    defaultBounds = props.defaultBounds,
    disabled = props.disabled,
    _props$minDragDistanc = props.minDragDistance,
    minDragDistance = _props$minDragDistanc === void 0 ? 4 : _props$minDragDistanc,
    _props$onDragBefore = props.onDragBefore,
    onDragBefore = _props$onDragBefore === void 0 ? ef : _props$onDragBefore,
    _props$onChangeEnd = props.onChangeEnd,
    _onChangeEnd = _props$onChangeEnd === void 0 ? ef : _props$onChangeEnd,
    _props$onChangeStart = props.onChangeStart,
    onChangeStart = _props$onChangeStart === void 0 ? ef : _props$onChangeStart,
    _props$onClickFixed = props.onClickFixed,
    onClickFixed = _props$onClickFixed === void 0 ? ef : _props$onClickFixed,
    checked = props.checked,
    style = props.style,
    controlledMode = props.controlledMode,
    portal = props.portal,
    limitBounds = props.limitBounds,
    rotateEnabled = props.rotateEnabled,
    otherProps = _objectWithoutProperties(props, _excluded);
  var styles = useStyles();
  var cursors = [styles.cursor0, styles.cursor1, styles.cursor2, styles.cursor3];
  var _useContext = useContext(TransformerBoxContext),
    getPointMapping = _useContext.getPointMapping;
  var _useState = useState({
      distanceLock: false,
      // 鼠标按下时的Bounds信息，也用于表达鼠标按下状态
      pointerDownBounds: false,
      // 鼠标按下时的鼠标坐标
      pointerDownPosition: {
        x: 0,
        y: 0
      },
      currentPoint: {
        x: 0,
        y: 0
      },
      resizeType: undefined,
      lastClickTime: 0,
      ctrlDown: false,
      shiftDown: false
    }),
    _useState2 = _slicedToArray(_useState, 1),
    _this = _useState2[0];
  var _useControllableValue = useControllableValue(props, {
      defaultValuePropName: 'defaultBounds',
      valuePropName: 'bounds',
      trigger: 'onBoundsChange'
    }),
    _useControllableValue2 = _slicedToArray(_useControllableValue, 2),
    _bounds = _useControllableValue2[0],
    _setBounds = _useControllableValue2[1];
  var _useState3 = useState(null),
    _useState4 = _slicedToArray(_useState3, 2),
    tmpBounds = _useState4[0],
    setTmpBounds = _useState4[1];
  var bounds = tmpBounds || _bounds;
  var _left = bounds.left,
    _top = bounds.top,
    _width = bounds.width,
    _height = bounds.height;
  var cursorDirection = roundBy45(bounds.rotate || 0) / 45 % 4;
  var setBounds = useMemoizedFn(param => {
    if (controlledMode) {
      _setBounds(bounds => {
        var newBounds = typeof param === 'function' ? param(bounds) : param;
        return _objectSpread(_objectSpread({}, bounds), newBounds);
      });
    } else {
      setTmpBounds(tmpBounds => {
        var bounds = tmpBounds || _bounds;
        var newBounds = typeof param === 'function' ? param(bounds) : param;
        return _objectSpread(_objectSpread({}, bounds), newBounds);
      });
    }
  });
  var changeBounds = useMemoizedFn(() => {
    if (!(_this.pointerDownBounds && _this.resizeType)) return;
    var pointOffset = getPointOffset(_this.pointerDownPosition, _this.currentPoint);
    if (!_this.distanceLock || Math.pow(minDragDistance, 2) < Math.pow(pointOffset.x, 2) + Math.pow(pointOffset.y, 2)) {
      /* 解锁距离锁 */
      _this.distanceLock = false;
      var changedState = calcBoundsChange(_this.pointerDownBounds, {
        x: Math.round(pointOffset.x / 1),
        y: Math.round(pointOffset.y / 1)
      }, {
        resizeType: _this.resizeType,
        eqRatio: _this.shiftDown,
        symmetrical: _this.ctrlDown
      });
      setBounds(_objectSpread({}, calcLimitBounds(_objectSpread(_objectSpread({}, _bounds), changedState), limitBounds)));
    }
  });
  var onChangeEnd = useMemoizedFn(() => {
    if (!controlledMode && tmpBounds) {
      _setBounds(tmpBounds);
    }
    setTmpBounds(null);
    _onChangeEnd(tmpBounds || _bounds);
  });
  useEventListener('keydown', e => {
    if (!_this.ctrlDown && (e.key === 'Control' || e.key === 'Meta')) {
      _this.ctrlDown = true;
      changeBounds();
    }
    if (!_this.shiftDown && e.key === 'Shift') {
      _this.shiftDown = true;
      changeBounds();
    }
  });
  useEventListener('keyup', e => {
    if (e.key === 'Control' || e.key === 'Meta') {
      _this.ctrlDown = false;
      changeBounds();
    }
    if (e.key === 'Shift') {
      _this.shiftDown = false;
      changeBounds();
    }
  });
  var rootRef = useRef(null);
  usePan(({
    target,
    start,
    startPosition,
    ev,
    offset,
    finish
  }) => {
    // 兼容 touchEvent
    var currentPoint = getPointMapping(getPointByEvent(ev));
    if (start) {
      _this.distanceLock = true;
      if (target instanceof HTMLDivElement) {
        var draggable = onDragBefore(ev);
        if (draggable === false) {
          return false;
        }

        /* 加距离锁 */
        _this.pointerDownPosition = currentPoint;
        _this.currentPoint = _this.pointerDownPosition;
        _this.pointerDownBounds = _objectSpread({}, bounds);
        _this.resizeType = getResizeMode(Array.from(target.classList));
        onChangeStart(ev, _this.resizeType);
      } else {
        return false;
      }
    }
    if (finish) {
      if (_this.pointerDownBounds) {
        _this.pointerDownBounds = false;
        _this.resizeType = undefined;
        onChangeEnd();
      }
      return true;
    }
    if (_this.pointerDownBounds && _this.resizeType) {
      _this.currentPoint = currentPoint;
      changeBounds();
    }
    return true;
  }, rootRef);
  useEventListener('dragstart', event => {
    event.preventDefault();
  }, {
    target: rootRef
  });
  useEventListener('mouseup', event => {
    var diff = Date.now() - _this.lastClickTime;
    _this.lastClickTime = Date.now();
    if (_this.distanceLock && event.button === 0 && diff < 200) {
      onClickFixed(event);
    }
  }, {
    target: rootRef
  });
  var triggerKeyboardChangeEnd = useDebounceFn(() => {
    onChangeEnd();
  }, {
    wait: 1000
  });
  var triggerKeyboardChangeStart = useMemoizedFn(e => {
    onChangeStart(e, 'keyboard');
    triggerKeyboardChangeEnd.run();
  });
  useEventListener('keydown', e => {
    if (_this.pointerDownBounds) return;
    if (checked && !disabled) {
      var ctrlKey = e.ctrlKey,
        altKey = e.altKey,
        metaKey = e.metaKey,
        shiftKey = e.shiftKey;
      var isCtrlOnly = !altKey && !shiftKey && (ctrlKey || metaKey);
      var isShiftOnly = shiftKey && !ctrlKey && !metaKey && !altKey;
      switch (e.key) {
        case 'ArrowUp':
          triggerKeyboardChangeStart(e);
          if (isCtrlOnly) {
            // 扩大
            setBounds({
              top: _top - 1,
              height: _height + 1
            });
          } else if (isShiftOnly) {
            // 缩小
            setBounds({
              height: _height - 1
            });
          } else {
            // 上移
            setBounds({
              top: _top - 1
            });
          }
          break;
        case 'ArrowDown':
          triggerKeyboardChangeStart(e);
          if (isCtrlOnly) {
            // 扩大
            setBounds({
              height: _height + 1
            });
          } else if (isShiftOnly) {
            // 缩小
            setBounds({
              top: _top + 1,
              height: _height - 1
            });
          } else {
            // 下移
            setBounds({
              top: _top + 1
            });
          }
          break;
        case 'ArrowLeft':
          triggerKeyboardChangeStart(e);
          if (isCtrlOnly) {
            // 扩大
            setBounds({
              left: _left - 1,
              width: _width + 1
            });
          } else if (isShiftOnly) {
            // 缩小
            setBounds({
              width: _width - 1
            });
          } else {
            // 左移
            setBounds({
              left: _left - 1
            });
          }
          break;
        case 'ArrowRight':
          triggerKeyboardChangeStart(e);
          if (isCtrlOnly) {
            // 扩大
            setBounds({
              width: _width + 1
            });
          } else if (isShiftOnly) {
            // 缩小
            setBounds({
              left: _left + 1,
              width: _width - 1
            });
          } else {
            // 右移
            setBounds({
              left: _left + 1
            });
          }
          break;
      }
    }
  });

  // 获取内容挂载的位置
  var contentRoot = portal ? portal() : null;
  var positionStyle = {
    left: `calc(var(--transformer-box-scale) * ${Math.round(bounds.left)}px)`,
    top: `calc(var(--transformer-box-scale) * ${Math.round(bounds.top)}px)`,
    width: `calc(var(--transformer-box-scale) * ${Math.round(bounds.width)}px)`,
    height: `calc(var(--transformer-box-scale) * ${Math.round(bounds.height)}px)`,
    transform: `rotate(${bounds.rotate || 0}deg)`
  };
  var content = contentRoot ? ( /*#__PURE__*/ReactDOM.createPortal( /*#__PURE__*/_jsx("div", {
    className: cn(styles.content, {
      [styles.statusChecked]: checked && !disabled,
      [styles.statusDisabled]: disabled
    }),
    style: positionStyle,
    children: children
  }), contentRoot)) : /*#__PURE__*/_jsx("div", {
    className: styles.content,
    children: children
  });
  return /*#__PURE__*/_jsxs("div", _objectSpread(_objectSpread({
    ref: rootRef,
    className: cn(styles.root, {
      [styles.statusChecked]: checked && !disabled,
      [styles.statusDisabled]: disabled
    }, className),
    style: _objectSpread(_objectSpread({}, style), positionStyle)
  }, otherProps), {}, {
    children: [content, /*#__PURE__*/_jsx("div", {
      className: cn(styles.scaleHandle, styles.scaleHandleTop, cursors[mod(0 + cursorDirection, 4)])
    }), /*#__PURE__*/_jsx("div", {
      className: cn(styles.scaleHandle, styles.scaleHandleBottom, cursors[mod(0 + cursorDirection, 4)])
    }), /*#__PURE__*/_jsx("div", {
      className: cn(styles.scaleHandle, styles.scaleHandleRight, cursors[mod(2 + cursorDirection, 4)])
    }), /*#__PURE__*/_jsx("div", {
      className: cn(styles.scaleHandle, styles.scaleHandleLeft, cursors[mod(2 + cursorDirection, 4)])
    }), /*#__PURE__*/_jsx("div", {
      className: cn(styles.scaleHandle, styles.scaleHandleTopLeft, cursors[mod(3 + cursorDirection, 4)])
    }), /*#__PURE__*/_jsx("div", {
      className: cn(styles.scaleHandle, styles.scaleHandleTopRight, cursors[mod(1 + cursorDirection, 4)])
    }), /*#__PURE__*/_jsx("div", {
      className: cn(styles.scaleHandle, styles.scaleHandleBottomLeft, cursors[mod(1 + cursorDirection, 4)])
    }), /*#__PURE__*/_jsx("div", {
      className: cn(styles.scaleHandle, styles.scaleHandleBottomRight, cursors[mod(3 + cursorDirection, 4)])
    }), rotateEnabled && /*#__PURE__*/_jsx("div", {
      className: cn(styles.scaleHandle, styles.rotateHandle)
    })]
  }));
};
export default TransformerBox;