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function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (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 = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
import { INIT_COORDS, BEGIN_DRAG, HOVER, END_DRAG, DROP } from '../actions/dragDrop';
import { areCoordsEqual } from '../utils/equality';
var initialState = {
initialSourceClientOffset: null,
initialClientOffset: null,
clientOffset: null
};
export function reduce() {
var state = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : initialState;
var action = arguments.length > 1 ? arguments[1] : undefined;
var payload = action.payload;
switch (action.type) {
case INIT_COORDS:
case BEGIN_DRAG:
return {
initialSourceClientOffset: payload.sourceClientOffset,
initialClientOffset: payload.clientOffset,
clientOffset: payload.clientOffset
};
case HOVER:
if (areCoordsEqual(state.clientOffset, payload.clientOffset)) {
return state;
}
return _objectSpread(_objectSpread({}, state), {}, {
clientOffset: payload.clientOffset
});
case END_DRAG:
case DROP:
return initialState;
default:
return state;
}
}