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| Viewing file: Select action/file-type: (function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('react')) :
typeof define === 'function' && define.amd ? define(['exports', 'react'], factory) :
(global = global || self, factory(global.ReactDnD = {}, global.React));
}(this, (function (exports, React) { 'use strict';
var HandlerRole;
(function (HandlerRole) {
HandlerRole["SOURCE"] = "SOURCE";
HandlerRole["TARGET"] = "TARGET";
})(HandlerRole || (HandlerRole = {}));
function symbolObservablePonyfill(root) {
var result;
var Symbol = root.Symbol;
if (typeof Symbol === 'function') {
if (Symbol.observable) {
result = Symbol.observable;
} else {
result = Symbol('observable');
Symbol.observable = result;
}
} else {
result = '@@observable';
}
return result;
}
/* global window */
var root;
if (typeof self !== 'undefined') {
root = self;
} else if (typeof window !== 'undefined') {
root = window;
} else if (typeof global !== 'undefined') {
root = global;
} else if (typeof module !== 'undefined') {
root = module;
} else {
root = Function('return this')();
}
var result = symbolObservablePonyfill(root);
/**
* These are private action types reserved by Redux.
* For any unknown actions, you must return the current state.
* If the current state is undefined, you must return the initial state.
* Do not reference these action types directly in your code.
*/
var randomString = function randomString() {
return Math.random().toString(36).substring(7).split('').join('.');
};
var ActionTypes = {
INIT: "@@redux/INIT" + randomString(),
REPLACE: "@@redux/REPLACE" + randomString(),
PROBE_UNKNOWN_ACTION: function PROBE_UNKNOWN_ACTION() {
return "@@redux/PROBE_UNKNOWN_ACTION" + randomString();
}
};
/**
* @param {any} obj The object to inspect.
* @returns {boolean} True if the argument appears to be a plain object.
*/
function isPlainObject(obj) {
if (typeof obj !== 'object' || obj === null) return false;
var proto = obj;
while (Object.getPrototypeOf(proto) !== null) {
proto = Object.getPrototypeOf(proto);
}
return Object.getPrototypeOf(obj) === proto;
}
/**
* Creates a Redux store that holds the state tree.
* The only way to change the data in the store is to call `dispatch()` on it.
*
* There should only be a single store in your app. To specify how different
* parts of the state tree respond to actions, you may combine several reducers
* into a single reducer function by using `combineReducers`.
*
* @param {Function} reducer A function that returns the next state tree, given
* the current state tree and the action to handle.
*
* @param {any} [preloadedState] The initial state. You may optionally specify it
* to hydrate the state from the server in universal apps, or to restore a
* previously serialized user session.
* If you use `combineReducers` to produce the root reducer function, this must be
* an object with the same shape as `combineReducers` keys.
*
* @param {Function} [enhancer] The store enhancer. You may optionally specify it
* to enhance the store with third-party capabilities such as middleware,
* time travel, persistence, etc. The only store enhancer that ships with Redux
* is `applyMiddleware()`.
*
* @returns {Store} A Redux store that lets you read the state, dispatch actions
* and subscribe to changes.
*/
function createStore(reducer, preloadedState, enhancer) {
var _ref2;
if (typeof preloadedState === 'function' && typeof enhancer === 'function' || typeof enhancer === 'function' && typeof arguments[3] === 'function') {
throw new Error('It looks like you are passing several store enhancers to ' + 'createStore(). This is not supported. Instead, compose them ' + 'together to a single function.');
}
if (typeof preloadedState === 'function' && typeof enhancer === 'undefined') {
enhancer = preloadedState;
preloadedState = undefined;
}
if (typeof enhancer !== 'undefined') {
if (typeof enhancer !== 'function') {
throw new Error('Expected the enhancer to be a function.');
}
return enhancer(createStore)(reducer, preloadedState);
}
if (typeof reducer !== 'function') {
throw new Error('Expected the reducer to be a function.');
}
var currentReducer = reducer;
var currentState = preloadedState;
var currentListeners = [];
var nextListeners = currentListeners;
var isDispatching = false;
/**
* This makes a shallow copy of currentListeners so we can use
* nextListeners as a temporary list while dispatching.
*
* This prevents any bugs around consumers calling
* subscribe/unsubscribe in the middle of a dispatch.
*/
function ensureCanMutateNextListeners() {
if (nextListeners === currentListeners) {
nextListeners = currentListeners.slice();
}
}
/**
* Reads the state tree managed by the store.
*
* @returns {any} The current state tree of your application.
*/
function getState() {
if (isDispatching) {
throw new Error('You may not call store.getState() while the reducer is executing. ' + 'The reducer has already received the state as an argument. ' + 'Pass it down from the top reducer instead of reading it from the store.');
}
return currentState;
}
/**
* Adds a change listener. It will be called any time an action is dispatched,
* and some part of the state tree may potentially have changed. You may then
* call `getState()` to read the current state tree inside the callback.
*
* You may call `dispatch()` from a change listener, with the following
* caveats:
*
* 1. The subscriptions are snapshotted just before every `dispatch()` call.
* If you subscribe or unsubscribe while the listeners are being invoked, this
* will not have any effect on the `dispatch()` that is currently in progress.
* However, the next `dispatch()` call, whether nested or not, will use a more
* recent snapshot of the subscription list.
*
* 2. The listener should not expect to see all state changes, as the state
* might have been updated multiple times during a nested `dispatch()` before
* the listener is called. It is, however, guaranteed that all subscribers
* registered before the `dispatch()` started will be called with the latest
* state by the time it exits.
*
* @param {Function} listener A callback to be invoked on every dispatch.
* @returns {Function} A function to remove this change listener.
*/
function subscribe(listener) {
if (typeof listener !== 'function') {
throw new Error('Expected the listener to be a function.');
}
if (isDispatching) {
throw new Error('You may not call store.subscribe() while the reducer is executing. ' + 'If you would like to be notified after the store has been updated, subscribe from a ' + 'component and invoke store.getState() in the callback to access the latest state. ' + 'See https://redux.js.org/api-reference/store#subscribe(listener) for more details.');
}
var isSubscribed = true;
ensureCanMutateNextListeners();
nextListeners.push(listener);
return function unsubscribe() {
if (!isSubscribed) {
return;
}
if (isDispatching) {
throw new Error('You may not unsubscribe from a store listener while the reducer is executing. ' + 'See https://redux.js.org/api-reference/store#subscribe(listener) for more details.');
}
isSubscribed = false;
ensureCanMutateNextListeners();
var index = nextListeners.indexOf(listener);
nextListeners.splice(index, 1);
};
}
/**
* Dispatches an action. It is the only way to trigger a state change.
*
* The `reducer` function, used to create the store, will be called with the
* current state tree and the given `action`. Its return value will
* be considered the **next** state of the tree, and the change listeners
* will be notified.
*
* The base implementation only supports plain object actions. If you want to
* dispatch a Promise, an Observable, a thunk, or something else, you need to
* wrap your store creating function into the corresponding middleware. For
* example, see the documentation for the `redux-thunk` package. Even the
* middleware will eventually dispatch plain object actions using this method.
*
* @param {Object} action A plain object representing “what changed”. It is
* a good idea to keep actions serializable so you can record and replay user
* sessions, or use the time travelling `redux-devtools`. An action must have
* a `type` property which may not be `undefined`. It is a good idea to use
* string constants for action types.
*
* @returns {Object} For convenience, the same action object you dispatched.
*
* Note that, if you use a custom middleware, it may wrap `dispatch()` to
* return something else (for example, a Promise you can await).
*/
function dispatch(action) {
if (!isPlainObject(action)) {
throw new Error('Actions must be plain objects. ' + 'Use custom middleware for async actions.');
}
if (typeof action.type === 'undefined') {
throw new Error('Actions may not have an undefined "type" property. ' + 'Have you misspelled a constant?');
}
if (isDispatching) {
throw new Error('Reducers may not dispatch actions.');
}
try {
isDispatching = true;
currentState = currentReducer(currentState, action);
} finally {
isDispatching = false;
}
var listeners = currentListeners = nextListeners;
for (var i = 0; i < listeners.length; i++) {
var listener = listeners[i];
listener();
}
return action;
}
/**
* Replaces the reducer currently used by the store to calculate the state.
*
* You might need this if your app implements code splitting and you want to
* load some of the reducers dynamically. You might also need this if you
* implement a hot reloading mechanism for Redux.
*
* @param {Function} nextReducer The reducer for the store to use instead.
* @returns {void}
*/
function replaceReducer(nextReducer) {
if (typeof nextReducer !== 'function') {
throw new Error('Expected the nextReducer to be a function.');
}
currentReducer = nextReducer; // This action has a similiar effect to ActionTypes.INIT.
// Any reducers that existed in both the new and old rootReducer
// will receive the previous state. This effectively populates
// the new state tree with any relevant data from the old one.
dispatch({
type: ActionTypes.REPLACE
});
}
/**
* Interoperability point for observable/reactive libraries.
* @returns {observable} A minimal observable of state changes.
* For more information, see the observable proposal:
* https://github.com/tc39/proposal-observable
*/
function observable() {
var _ref;
var outerSubscribe = subscribe;
return _ref = {
/**
* The minimal observable subscription method.
* @param {Object} observer Any object that can be used as an observer.
* The observer object should have a `next` method.
* @returns {subscription} An object with an `unsubscribe` method that can
* be used to unsubscribe the observable from the store, and prevent further
* emission of values from the observable.
*/
subscribe: function subscribe(observer) {
if (typeof observer !== 'object' || observer === null) {
throw new TypeError('Expected the observer to be an object.');
}
function observeState() {
if (observer.next) {
observer.next(getState());
}
}
observeState();
var unsubscribe = outerSubscribe(observeState);
return {
unsubscribe: unsubscribe
};
}
}, _ref[result] = function () {
return this;
}, _ref;
} // When a store is created, an "INIT" action is dispatched so that every
// reducer returns their initial state. This effectively populates
// the initial state tree.
dispatch({
type: ActionTypes.INIT
});
return _ref2 = {
dispatch: dispatch,
subscribe: subscribe,
getState: getState,
replaceReducer: replaceReducer
}, _ref2[result] = observable, _ref2;
}
/**
* Prints a warning in the console if it exists.
*
* @param {String} message The warning message.
* @returns {void}
*/
function warning(message) {
/* eslint-disable no-console */
if (typeof console !== 'undefined' && typeof console.error === 'function') {
console.error(message);
}
/* eslint-enable no-console */
try {
// This error was thrown as a convenience so that if you enable
// "break on all exceptions" in your console,
// it would pause the execution at this line.
throw new Error(message);
} catch (e) {} // eslint-disable-line no-empty
}
/*
* This is a dummy function to check if the function name has been altered by minification.
* If the function has been minified and NODE_ENV !== 'production', warn the user.
*/
function isCrushed() {}
if ("development" !== 'production' && typeof isCrushed.name === 'string' && isCrushed.name !== 'isCrushed') {
warning('You are currently using minified code outside of NODE_ENV === "production". ' + 'This means that you are running a slower development build of Redux. ' + 'You can use loose-envify (https://github.com/zertosh/loose-envify) for browserify ' + 'or setting mode to production in webpack (https://webpack.js.org/concepts/mode/) ' + 'to ensure you have the correct code for your production build.');
}
/**
* Use invariant() to assert state which your program assumes to be true.
*
* Provide sprintf-style format (only %s is supported) and arguments
* to provide information about what broke and what you were
* expecting.
*
* The invariant message will be stripped in production, but the invariant
* will remain to ensure logic does not differ in production.
*/
function invariant(condition, format) {
for (var _len = arguments.length, args = new Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) {
args[_key - 2] = arguments[_key];
}
if ("development" !== 'production') {
if (format === undefined) {
throw new Error('invariant requires an error message argument');
}
}
if (!condition) {
var error;
if (format === undefined) {
error = new Error('Minified exception occurred; use the non-minified dev environment ' + 'for the full error message and additional helpful warnings.');
} else {
var argIndex = 0;
error = new Error(format.replace(/%s/g, function () {
return args[argIndex++];
}));
error.name = 'Invariant Violation';
}
error.framesToPop = 1; // we don't care about invariant's own frame
throw error;
}
}
var INIT_COORDS = 'dnd-core/INIT_COORDS';
var BEGIN_DRAG = 'dnd-core/BEGIN_DRAG';
var PUBLISH_DRAG_SOURCE = 'dnd-core/PUBLISH_DRAG_SOURCE';
var HOVER = 'dnd-core/HOVER';
var DROP = 'dnd-core/DROP';
var END_DRAG = 'dnd-core/END_DRAG';
function setClientOffset(clientOffset, sourceClientOffset) {
return {
type: INIT_COORDS,
payload: {
sourceClientOffset: sourceClientOffset || null,
clientOffset: clientOffset || null
}
};
}
function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
// cheap lodash replacements
/**
* drop-in replacement for _.get
* @param obj
* @param path
* @param defaultValue
*/
function get(obj, path, defaultValue) {
return path.split('.').reduce(function (a, c) {
return a && a[c] ? a[c] : defaultValue || null;
}, obj);
}
/**
* drop-in replacement for _.without
*/
function without(items, item) {
return items.filter(function (i) {
return i !== item;
});
}
/**
* drop-in replacement for _.isString
* @param input
*/
function isObject(input) {
return _typeof(input) === 'object';
}
/**
* repalcement for _.xor
* @param itemsA
* @param itemsB
*/
function xor(itemsA, itemsB) {
var map = new Map();
var insertItem = function insertItem(item) {
return map.set(item, map.has(item) ? map.get(item) + 1 : 1);
};
itemsA.forEach(insertItem);
itemsB.forEach(insertItem);
var result = [];
map.forEach(function (count, key) {
if (count === 1) {
result.push(key);
}
});
return result;
}
/**
* replacement for _.intersection
* @param itemsA
* @param itemsB
*/
function intersection(itemsA, itemsB) {
return itemsA.filter(function (t) {
return itemsB.indexOf(t) > -1;
});
}
var ResetCoordinatesAction = {
type: INIT_COORDS,
payload: {
clientOffset: null,
sourceClientOffset: null
}
};
function createBeginDrag(manager) {
return function beginDrag() {
var sourceIds = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {
publishSource: true
};
var _options$publishSourc = options.publishSource,
publishSource = _options$publishSourc === void 0 ? true : _options$publishSourc,
clientOffset = options.clientOffset,
getSourceClientOffset = options.getSourceClientOffset;
var monitor = manager.getMonitor();
var registry = manager.getRegistry(); // Initialize the coordinates using the client offset
manager.dispatch(setClientOffset(clientOffset));
verifyInvariants(sourceIds, monitor, registry); // Get the draggable source
var sourceId = getDraggableSource(sourceIds, monitor);
if (sourceId === null) {
manager.dispatch(ResetCoordinatesAction);
return;
} // Get the source client offset
var sourceClientOffset = null;
if (clientOffset) {
verifyGetSourceClientOffsetIsFunction(getSourceClientOffset);
sourceClientOffset = getSourceClientOffset(sourceId);
} // Initialize the full coordinates
manager.dispatch(setClientOffset(clientOffset, sourceClientOffset));
var source = registry.getSource(sourceId);
var item = source.beginDrag(monitor, sourceId);
verifyItemIsObject(item);
registry.pinSource(sourceId);
var itemType = registry.getSourceType(sourceId);
return {
type: BEGIN_DRAG,
payload: {
itemType: itemType,
item: item,
sourceId: sourceId,
clientOffset: clientOffset || null,
sourceClientOffset: sourceClientOffset || null,
isSourcePublic: !!publishSource
}
};
};
}
function verifyInvariants(sourceIds, monitor, registry) {
invariant(!monitor.isDragging(), 'Cannot call beginDrag while dragging.');
sourceIds.forEach(function (sourceId) {
invariant(registry.getSource(sourceId), 'Expected sourceIds to be registered.');
});
}
function verifyGetSourceClientOffsetIsFunction(getSourceClientOffset) {
invariant(typeof getSourceClientOffset === 'function', 'When clientOffset is provided, getSourceClientOffset must be a function.');
}
function verifyItemIsObject(item) {
invariant(isObject(item), 'Item must be an object.');
}
function getDraggableSource(sourceIds, monitor) {
var sourceId = null;
for (var i = sourceIds.length - 1; i >= 0; i--) {
if (monitor.canDragSource(sourceIds[i])) {
sourceId = sourceIds[i];
break;
}
}
return sourceId;
}
function createPublishDragSource(manager) {
return function publishDragSource() {
var monitor = manager.getMonitor();
if (monitor.isDragging()) {
return {
type: PUBLISH_DRAG_SOURCE
};
}
};
}
function matchesType(targetType, draggedItemType) {
if (draggedItemType === null) {
return targetType === null;
}
return Array.isArray(targetType) ? targetType.some(function (t) {
return t === draggedItemType;
}) : targetType === draggedItemType;
}
function createHover(manager) {
return function hover(targetIdsArg) {
var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
clientOffset = _ref.clientOffset;
verifyTargetIdsIsArray(targetIdsArg);
var targetIds = targetIdsArg.slice(0);
var monitor = manager.getMonitor();
var registry = manager.getRegistry();
checkInvariants(targetIds, monitor, registry);
var draggedItemType = monitor.getItemType();
removeNonMatchingTargetIds(targetIds, registry, draggedItemType);
hoverAllTargets(targetIds, monitor, registry);
return {
type: HOVER,
payload: {
targetIds: targetIds,
clientOffset: clientOffset || null
}
};
};
}
function verifyTargetIdsIsArray(targetIdsArg) {
invariant(Array.isArray(targetIdsArg), 'Expected targetIds to be an array.');
}
function checkInvariants(targetIds, monitor, registry) {
invariant(monitor.isDragging(), 'Cannot call hover while not dragging.');
invariant(!monitor.didDrop(), 'Cannot call hover after drop.');
for (var i = 0; i < targetIds.length; i++) {
var targetId = targetIds[i];
invariant(targetIds.lastIndexOf(targetId) === i, 'Expected targetIds to be unique in the passed array.');
var target = registry.getTarget(targetId);
invariant(target, 'Expected targetIds to be registered.');
}
}
function removeNonMatchingTargetIds(targetIds, registry, draggedItemType) {
// Remove those targetIds that don't match the targetType. This
// fixes shallow isOver which would only be non-shallow because of
// non-matching targets.
for (var i = targetIds.length - 1; i >= 0; i--) {
var targetId = targetIds[i];
var targetType = registry.getTargetType(targetId);
if (!matchesType(targetType, draggedItemType)) {
targetIds.splice(i, 1);
}
}
}
function hoverAllTargets(targetIds, monitor, registry) {
// Finally call hover on all matching targets.
targetIds.forEach(function (targetId) {
var target = registry.getTarget(targetId);
target.hover(monitor, targetId);
});
}
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; }
function createDrop(manager) {
return function drop() {
var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
var monitor = manager.getMonitor();
var registry = manager.getRegistry();
verifyInvariants$1(monitor);
var targetIds = getDroppableTargets(monitor); // Multiple actions are dispatched here, which is why this doesn't return an action
targetIds.forEach(function (targetId, index) {
var dropResult = determineDropResult(targetId, index, registry, monitor);
var action = {
type: DROP,
payload: {
dropResult: _objectSpread({}, options, {}, dropResult)
}
};
manager.dispatch(action);
});
};
}
function verifyInvariants$1(monitor) {
invariant(monitor.isDragging(), 'Cannot call drop while not dragging.');
invariant(!monitor.didDrop(), 'Cannot call drop twice during one drag operation.');
}
function determineDropResult(targetId, index, registry, monitor) {
var target = registry.getTarget(targetId);
var dropResult = target ? target.drop(monitor, targetId) : undefined;
verifyDropResultType(dropResult);
if (typeof dropResult === 'undefined') {
dropResult = index === 0 ? {} : monitor.getDropResult();
}
return dropResult;
}
function verifyDropResultType(dropResult) {
invariant(typeof dropResult === 'undefined' || isObject(dropResult), 'Drop result must either be an object or undefined.');
}
function getDroppableTargets(monitor) {
var targetIds = monitor.getTargetIds().filter(monitor.canDropOnTarget, monitor);
targetIds.reverse();
return targetIds;
}
function createEndDrag(manager) {
return function endDrag() {
var monitor = manager.getMonitor();
var registry = manager.getRegistry();
verifyIsDragging(monitor);
var sourceId = monitor.getSourceId();
var source = registry.getSource(sourceId, true);
source.endDrag(monitor, sourceId);
registry.unpinSource();
return {
type: END_DRAG
};
};
}
function verifyIsDragging(monitor) {
invariant(monitor.isDragging(), 'Cannot call endDrag while not dragging.');
}
function createDragDropActions(manager) {
return {
beginDrag: createBeginDrag(manager),
publishDragSource: createPublishDragSource(manager),
hover: createHover(manager),
drop: createDrop(manager),
endDrag: createEndDrag(manager)
};
}
var strictEquality = function strictEquality(a, b) {
return a === b;
};
/**
* Determine if two cartesian coordinate offsets are equal
* @param offsetA
* @param offsetB
*/
function areCoordsEqual(offsetA, offsetB) {
if (!offsetA && !offsetB) {
return true;
} else if (!offsetA || !offsetB) {
return false;
} else {
return offsetA.x === offsetB.x && offsetA.y === offsetB.y;
}
}
/**
* Determines if two arrays of items are equal
* @param a The first array of items
* @param b The second array of items
*/
function areArraysEqual(a, b) {
var isEqual = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : strictEquality;
if (a.length !== b.length) {
return false;
}
for (var i = 0; i < a.length; ++i) {
if (!isEqual(a[i], b[i])) {
return false;
}
}
return true;
}
function ownKeys$1(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$1(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys$1(Object(source), true).forEach(function (key) { _defineProperty$1(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys$1(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
function _defineProperty$1(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; }
var initialState = {
initialSourceClientOffset: null,
initialClientOffset: null,
clientOffset: null
};
function dragOffset() {
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$1({}, state, {
clientOffset: payload.clientOffset
});
case END_DRAG:
case DROP:
return initialState;
default:
return state;
}
}
var ADD_SOURCE = 'dnd-core/ADD_SOURCE';
var ADD_TARGET = 'dnd-core/ADD_TARGET';
var REMOVE_SOURCE = 'dnd-core/REMOVE_SOURCE';
var REMOVE_TARGET = 'dnd-core/REMOVE_TARGET';
function addSource(sourceId) {
return {
type: ADD_SOURCE,
payload: {
sourceId: sourceId
}
};
}
function addTarget(targetId) {
return {
type: ADD_TARGET,
payload: {
targetId: targetId
}
};
}
function removeSource(sourceId) {
return {
type: REMOVE_SOURCE,
payload: {
sourceId: sourceId
}
};
}
function removeTarget(targetId) {
return {
type: REMOVE_TARGET,
payload: {
targetId: targetId
}
};
}
function ownKeys$2(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$2(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys$2(Object(source), true).forEach(function (key) { _defineProperty$2(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys$2(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
function _defineProperty$2(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; }
var initialState$1 = {
itemType: null,
item: null,
sourceId: null,
targetIds: [],
dropResult: null,
didDrop: false,
isSourcePublic: null
};
function dragOperation() {
var state = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : initialState$1;
var action = arguments.length > 1 ? arguments[1] : undefined;
var payload = action.payload;
switch (action.type) {
case BEGIN_DRAG:
return _objectSpread$2({}, state, {
itemType: payload.itemType,
item: payload.item,
sourceId: payload.sourceId,
isSourcePublic: payload.isSourcePublic,
dropResult: null,
didDrop: false
});
case PUBLISH_DRAG_SOURCE:
return _objectSpread$2({}, state, {
isSourcePublic: true
});
case HOVER:
return _objectSpread$2({}, state, {
targetIds: payload.targetIds
});
case REMOVE_TARGET:
if (state.targetIds.indexOf(payload.targetId) === -1) {
return state;
}
return _objectSpread$2({}, state, {
targetIds: without(state.targetIds, payload.targetId)
});
case DROP:
return _objectSpread$2({}, state, {
dropResult: payload.dropResult,
didDrop: true,
targetIds: []
});
case END_DRAG:
return _objectSpread$2({}, state, {
itemType: null,
item: null,
sourceId: null,
dropResult: null,
didDrop: false,
isSourcePublic: null,
targetIds: []
});
default:
return state;
}
}
function refCount() {
var state = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
var action = arguments.length > 1 ? arguments[1] : undefined;
switch (action.type) {
case ADD_SOURCE:
case ADD_TARGET:
return state + 1;
case REMOVE_SOURCE:
case REMOVE_TARGET:
return state - 1;
default:
return state;
}
}
var NONE = [];
var ALL = [];
NONE.__IS_NONE__ = true;
ALL.__IS_ALL__ = true;
/**
* Determines if the given handler IDs are dirty or not.
*
* @param dirtyIds The set of dirty handler ids
* @param handlerIds The set of handler ids to check
*/
function areDirty(dirtyIds, handlerIds) {
if (dirtyIds === NONE) {
return false;
}
if (dirtyIds === ALL || typeof handlerIds === 'undefined') {
return true;
}
var commonIds = intersection(handlerIds, dirtyIds);
return commonIds.length > 0;
}
function dirtyHandlerIds() {
var action = arguments.length > 1 ? arguments[1] : undefined;
switch (action.type) {
case HOVER:
break;
case ADD_SOURCE:
case ADD_TARGET:
case REMOVE_TARGET:
case REMOVE_SOURCE:
return NONE;
case BEGIN_DRAG:
case PUBLISH_DRAG_SOURCE:
case END_DRAG:
case DROP:
default:
return ALL;
}
var _action$payload = action.payload,
_action$payload$targe = _action$payload.targetIds,
targetIds = _action$payload$targe === void 0 ? [] : _action$payload$targe,
_action$payload$prevT = _action$payload.prevTargetIds,
prevTargetIds = _action$payload$prevT === void 0 ? [] : _action$payload$prevT;
var result = xor(targetIds, prevTargetIds);
var didChange = result.length > 0 || !areArraysEqual(targetIds, prevTargetIds);
if (!didChange) {
return NONE;
} // Check the target ids at the innermost position. If they are valid, add them
// to the result
var prevInnermostTargetId = prevTargetIds[prevTargetIds.length - 1];
var innermostTargetId = targetIds[targetIds.length - 1];
if (prevInnermostTargetId !== innermostTargetId) {
if (prevInnermostTargetId) {
result.push(prevInnermostTargetId);
}
if (innermostTargetId) {
result.push(innermostTargetId);
}
}
return result;
}
function stateId() {
var state = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
return state + 1;
}
function ownKeys$3(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$3(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys$3(Object(source), true).forEach(function (key) { _defineProperty$3(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys$3(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
function _defineProperty$3(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; }
function reduce() {
var state = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
var action = arguments.length > 1 ? arguments[1] : undefined;
return {
dirtyHandlerIds: dirtyHandlerIds(state.dirtyHandlerIds, {
type: action.type,
payload: _objectSpread$3({}, action.payload, {
prevTargetIds: get(state, 'dragOperation.targetIds', [])
})
}),
dragOffset: dragOffset(state.dragOffset, action),
refCount: refCount(state.refCount, action),
dragOperation: dragOperation(state.dragOperation, action),
stateId: stateId(state.stateId)
};
}
/**
* Coordinate addition
* @param a The first coordinate
* @param b The second coordinate
*/
function add(a, b) {
return {
x: a.x + b.x,
y: a.y + b.y
};
}
/**
* Coordinate subtraction
* @param a The first coordinate
* @param b The second coordinate
*/
function subtract(a, b) {
return {
x: a.x - b.x,
y: a.y - b.y
};
}
/**
* Returns the cartesian distance of the drag source component's position, based on its position
* at the time when the current drag operation has started, and the movement difference.
*
* Returns null if no item is being dragged.
*
* @param state The offset state to compute from
*/
function getSourceClientOffset(state) {
var clientOffset = state.clientOffset,
initialClientOffset = state.initialClientOffset,
initialSourceClientOffset = state.initialSourceClientOffset;
if (!clientOffset || !initialClientOffset || !initialSourceClientOffset) {
return null;
}
return subtract(add(clientOffset, initialSourceClientOffset), initialClientOffset);
}
/**
* Determines the x,y offset between the client offset and the initial client offset
*
* @param state The offset state to compute from
*/
function getDifferenceFromInitialOffset(state) {
var clientOffset = state.clientOffset,
initialClientOffset = state.initialClientOffset;
if (!clientOffset || !initialClientOffset) {
return null;
}
return subtract(clientOffset, initialClientOffset);
}
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
var DragDropMonitorImpl =
/*#__PURE__*/
function () {
function DragDropMonitorImpl(store, registry) {
_classCallCheck(this, DragDropMonitorImpl);
this.store = store;
this.registry = registry;
}
_createClass(DragDropMonitorImpl, [{
key: "subscribeToStateChange",
value: function subscribeToStateChange(listener) {
var _this = this;
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {
handlerIds: undefined
};
var handlerIds = options.handlerIds;
invariant(typeof listener === 'function', 'listener must be a function.');
invariant(typeof handlerIds === 'undefined' || Array.isArray(handlerIds), 'handlerIds, when specified, must be an array of strings.');
var prevStateId = this.store.getState().stateId;
var handleChange = function handleChange() {
var state = _this.store.getState();
var currentStateId = state.stateId;
try {
var canSkipListener = currentStateId === prevStateId || currentStateId === prevStateId + 1 && !areDirty(state.dirtyHandlerIds, handlerIds);
if (!canSkipListener) {
listener();
}
} finally {
prevStateId = currentStateId;
}
};
return this.store.subscribe(handleChange);
}
}, {
key: "subscribeToOffsetChange",
value: function subscribeToOffsetChange(listener) {
var _this2 = this;
invariant(typeof listener === 'function', 'listener must be a function.');
var previousState = this.store.getState().dragOffset;
var handleChange = function handleChange() {
var nextState = _this2.store.getState().dragOffset;
if (nextState === previousState) {
return;
}
previousState = nextState;
listener();
};
return this.store.subscribe(handleChange);
}
}, {
key: "canDragSource",
value: function canDragSource(sourceId) {
if (!sourceId) {
return false;
}
var source = this.registry.getSource(sourceId);
invariant(source, 'Expected to find a valid source.');
if (this.isDragging()) {
return false;
}
return source.canDrag(this, sourceId);
}
}, {
key: "canDropOnTarget",
value: function canDropOnTarget(targetId) {
// undefined on initial render
if (!targetId) {
return false;
}
var target = this.registry.getTarget(targetId);
invariant(target, 'Expected to find a valid target.');
if (!this.isDragging() || this.didDrop()) {
return false;
}
var targetType = this.registry.getTargetType(targetId);
var draggedItemType = this.getItemType();
return matchesType(targetType, draggedItemType) && target.canDrop(this, targetId);
}
}, {
key: "isDragging",
value: function isDragging() {
return Boolean(this.getItemType());
}
}, {
key: "isDraggingSource",
value: function isDraggingSource(sourceId) {
// undefined on initial render
if (!sourceId) {
return false;
}
var source = this.registry.getSource(sourceId, true);
invariant(source, 'Expected to find a valid source.');
if (!this.isDragging() || !this.isSourcePublic()) {
return false;
}
var sourceType = this.registry.getSourceType(sourceId);
var draggedItemType = this.getItemType();
if (sourceType !== draggedItemType) {
return false;
}
return source.isDragging(this, sourceId);
}
}, {
key: "isOverTarget",
value: function isOverTarget(targetId) {
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {
shallow: false
};
// undefined on initial render
if (!targetId) {
return false;
}
var shallow = options.shallow;
if (!this.isDragging()) {
return false;
}
var targetType = this.registry.getTargetType(targetId);
var draggedItemType = this.getItemType();
if (draggedItemType && !matchesType(targetType, draggedItemType)) {
return false;
}
var targetIds = this.getTargetIds();
if (!targetIds.length) {
return false;
}
var index = targetIds.indexOf(targetId);
if (shallow) {
return index === targetIds.length - 1;
} else {
return index > -1;
}
}
}, {
key: "getItemType",
value: function getItemType() {
return this.store.getState().dragOperation.itemType;
}
}, {
key: "getItem",
value: function getItem() {
return this.store.getState().dragOperation.item;
}
}, {
key: "getSourceId",
value: function getSourceId() {
return this.store.getState().dragOperation.sourceId;
}
}, {
key: "getTargetIds",
value: function getTargetIds() {
return this.store.getState().dragOperation.targetIds;
}
}, {
key: "getDropResult",
value: function getDropResult() {
return this.store.getState().dragOperation.dropResult;
}
}, {
key: "didDrop",
value: function didDrop() {
return this.store.getState().dragOperation.didDrop;
}
}, {
key: "isSourcePublic",
value: function isSourcePublic() {
return this.store.getState().dragOperation.isSourcePublic;
}
}, {
key: "getInitialClientOffset",
value: function getInitialClientOffset() {
return this.store.getState().dragOffset.initialClientOffset;
}
}, {
key: "getInitialSourceClientOffset",
value: function getInitialSourceClientOffset() {
return this.store.getState().dragOffset.initialSourceClientOffset;
}
}, {
key: "getClientOffset",
value: function getClientOffset() {
return this.store.getState().dragOffset.clientOffset;
}
}, {
key: "getSourceClientOffset",
value: function getSourceClientOffset$1() {
return getSourceClientOffset(this.store.getState().dragOffset);
}
}, {
key: "getDifferenceFromInitialOffset",
value: function getDifferenceFromInitialOffset$1() {
return getDifferenceFromInitialOffset(this.store.getState().dragOffset);
}
}]);
return DragDropMonitorImpl;
}();
var nextUniqueId = 0;
function getNextUniqueId() {
return nextUniqueId++;
}
function _typeof$1(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof$1 = function _typeof(obj) { return typeof obj; }; } else { _typeof$1 = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof$1(obj); }
function validateSourceContract(source) {
invariant(typeof source.canDrag === 'function', 'Expected canDrag to be a function.');
invariant(typeof source.beginDrag === 'function', 'Expected beginDrag to be a function.');
invariant(typeof source.endDrag === 'function', 'Expected endDrag to be a function.');
}
function validateTargetContract(target) {
invariant(typeof target.canDrop === 'function', 'Expected canDrop to be a function.');
invariant(typeof target.hover === 'function', 'Expected hover to be a function.');
invariant(typeof target.drop === 'function', 'Expected beginDrag to be a function.');
}
function validateType(type, allowArray) {
if (allowArray && Array.isArray(type)) {
type.forEach(function (t) {
return validateType(t, false);
});
return;
}
invariant(typeof type === 'string' || _typeof$1(type) === 'symbol', allowArray ? 'Type can only be a string, a symbol, or an array of either.' : 'Type can only be a string or a symbol.');
}
// Use the fastest means possible to execute a task in its own turn, with
// priority over other events including IO, animation, reflow, and redraw
// events in browsers.
//
// An exception thrown by a task will permanently interrupt the processing of
// subsequent tasks. The higher level `asap` function ensures that if an
// exception is thrown by a task, that the task queue will continue flushing as
// soon as possible, but if you use `rawAsap` directly, you are responsible to
// either ensure that no exceptions are thrown from your task, or to manually
// call `rawAsap.requestFlush` if an exception is thrown.
function rawAsap(task) {
if (!queue.length) {
requestFlush();
} // Equivalent to push, but avoids a function call.
queue[queue.length] = task;
}
var queue = []; // Once a flush has been requested, no further calls to `requestFlush` are
// off a `flush` event as quickly as possible. `flush` will attempt to exhaust
// the event queue before yielding to the browser's own event loop.
var requestFlush; // The position of the next task to execute in the task queue. This is
// preserved between calls to `flush` so that it can be resumed if
// a task throws an exception.
var index = 0; // If a task schedules additional tasks recursively, the task queue can grow
// unbounded. To prevent memory exhaustion, the task queue will periodically
// truncate already-completed tasks.
var capacity = 1024; // The flush function processes all tasks that have been scheduled with
// `rawAsap` unless and until one of those tasks throws an exception.
// If a task throws an exception, `flush` ensures that its state will remain
// consistent and will resume where it left off when called again.
// However, `flush` does not make any arrangements to be called again if an
// exception is thrown.
function flush() {
while (index < queue.length) {
var currentIndex = index; // Advance the index before calling the task. This ensures that we will
// begin flushing on the next task the task throws an error.
index = index + 1;
queue[currentIndex].call(); // Prevent leaking memory for long chains of recursive calls to `asap`.
// If we call `asap` within tasks scheduled by `asap`, the queue will
// grow, but to avoid an O(n) walk for every task we execute, we don't
// shift tasks off the queue after they have been executed.
// Instead, we periodically shift 1024 tasks off the queue.
if (index > capacity) {
// Manually shift all values starting at the index back to the
// beginning of the queue.
for (var scan = 0, newLength = queue.length - index; scan < newLength; scan++) {
queue[scan] = queue[scan + index];
}
queue.length -= index;
index = 0;
}
}
queue.length = 0;
index = 0;
} // `requestFlush` is implemented using a strategy based on data collected from
// every available SauceLabs Selenium web driver worker at time of writing.
// https://docs.google.com/spreadsheets/d/1mG-5UYGup5qxGdEMWkhP6BWCz053NUb2E1QoUTU16uA/edit#gid=783724593
// Safari 6 and 6.1 for desktop, iPad, and iPhone are the only browsers that
// have WebKitMutationObserver but not un-prefixed MutationObserver.
// Must use `global` or `self` instead of `window` to work in both frames and web
// workers. `global` is a provision of Browserify, Mr, Mrs, or Mop.
/* globals self */
var scope = typeof global !== 'undefined' ? global : self;
var BrowserMutationObserver = scope.MutationObserver || scope.WebKitMutationObserver; // MutationObservers are desirable because they have high priority and work
// reliably everywhere they are implemented.
// They are implemented in all modern browsers.
//
// - Android 4-4.3
// - Chrome 26-34
// - Firefox 14-29
// - Internet Explorer 11
// - iPad Safari 6-7.1
// - iPhone Safari 7-7.1
// - Safari 6-7
if (typeof BrowserMutationObserver === 'function') {
requestFlush = makeRequestCallFromMutationObserver(flush); // MessageChannels are desirable because they give direct access to the HTML
// task queue, are implemented in Internet Explorer 10, Safari 5.0-1, and Opera
// 11-12, and in web workers in many engines.
// Although message channels yield to any queued rendering and IO tasks, they
// would be better than imposing the 4ms delay of timers.
// However, they do not work reliably in Internet Explorer or Safari.
// Internet Explorer 10 is the only browser that has setImmediate but does
// not have MutationObservers.
// Although setImmediate yields to the browser's renderer, it would be
// preferrable to falling back to setTimeout since it does not have
// the minimum 4ms penalty.
// Unfortunately there appears to be a bug in Internet Explorer 10 Mobile (and
// Desktop to a lesser extent) that renders both setImmediate and
// MessageChannel useless for the purposes of ASAP.
// https://github.com/kriskowal/q/issues/396
// Timers are implemented universally.
// We fall back to timers in workers in most engines, and in foreground
// contexts in the following browsers.
// However, note that even this simple case requires nuances to operate in a
// broad spectrum of browsers.
//
// - Firefox 3-13
// - Internet Explorer 6-9
// - iPad Safari 4.3
// - Lynx 2.8.7
} else {
requestFlush = makeRequestCallFromTimer(flush);
} // `requestFlush` requests that the high priority event queue be flushed as
// soon as possible.
// This is useful to prevent an error thrown in a task from stalling the event
// queue if the exception handled by Node.js’s
// `process.on("uncaughtException")` or by a domain.
rawAsap.requestFlush = requestFlush; // To request a high priority event, we induce a mutation observer by toggling
// the text of a text node between "1" and "-1".
function makeRequestCallFromMutationObserver(callback) {
var toggle = 1;
var observer = new BrowserMutationObserver(callback);
var node = document.createTextNode('');
observer.observe(node, {
characterData: true
});
return function requestCall() {
toggle = -toggle;
node.data = toggle;
};
} // The message channel technique was discovered by Malte Ubl and was the
// original foundation for this library.
// http://www.nonblocking.io/2011/06/windownexttick.html
// Safari 6.0.5 (at least) intermittently fails to create message ports on a
// page's first load. Thankfully, this version of Safari supports
// MutationObservers, so we don't need to fall back in that case.
// function makeRequestCallFromMessageChannel(callback) {
// var channel = new MessageChannel();
// channel.port1.onmessage = callback;
// return function requestCall() {
// channel.port2.postMessage(0);
// };
// }
// For reasons explained above, we are also unable to use `setImmediate`
// under any circumstances.
// Even if we were, there is another bug in Internet Explorer 10.
// It is not sufficient to assign `setImmediate` to `requestFlush` because
// `setImmediate` must be called *by name* and therefore must be wrapped in a
// closure.
// Never forget.
// function makeRequestCallFromSetImmediate(callback) {
// return function requestCall() {
// setImmediate(callback);
// };
// }
// Safari 6.0 has a problem where timers will get lost while the user is
// scrolling. This problem does not impact ASAP because Safari 6.0 supports
// mutation observers, so that implementation is used instead.
// However, if we ever elect to use timers in Safari, the prevalent work-around
// is to add a scroll event listener that calls for a flush.
// `setTimeout` does not call the passed callback if the delay is less than
// approximately 7 in web workers in Firefox 8 through 18, and sometimes not
// even then.
function makeRequestCallFromTimer(callback) {
return function requestCall() {
// We dispatch a timeout with a specified delay of 0 for engines that
// can reliably accommodate that request. This will usually be snapped
// to a 4 milisecond delay, but once we're flushing, there's no delay
// between events.
var timeoutHandle = setTimeout(handleTimer, 0); // However, since this timer gets frequently dropped in Firefox
// workers, we enlist an interval handle that will try to fire
// an event 20 times per second until it succeeds.
var intervalHandle = setInterval(handleTimer, 50);
function handleTimer() {
// Whichever timer succeeds will cancel both timers and
// execute the callback.
clearTimeout(timeoutHandle);
clearInterval(intervalHandle);
callback();
}
};
} // This is for `asap.js` only.
// Its name will be periodically randomized to break any code that depends on
// its existence.
rawAsap.makeRequestCallFromTimer = makeRequestCallFromTimer; // ASAP was originally a nextTick shim included in Q. This was factored out
// into this ASAP package. It was later adapted to RSVP which made further
// amendments. These decisions, particularly to marginalize MessageChannel and
// to capture the MutationObserver implementation in a closure, were integrated
// back into ASAP proper.
// https://github.com/tildeio/rsvp.js/blob/cddf7232546a9cf858524b75cde6f9edf72620a7/lib/rsvp/asap.js
// RawTasks are recycled to reduce GC churn.
var freeTasks = []; // We queue errors to ensure they are thrown in right order (FIFO).
// Array-as-queue is good enough here, since we are just dealing with exceptions.
var pendingErrors = [];
var requestErrorThrow = rawAsap.makeRequestCallFromTimer(throwFirstError);
function throwFirstError() {
if (pendingErrors.length) {
throw pendingErrors.shift();
}
}
/**
* Calls a task as soon as possible after returning, in its own event, with priority
* over other events like animation, reflow, and repaint. An error thrown from an
* event will not interrupt, nor even substantially slow down the processing of
* other events, but will be rather postponed to a lower priority event.
* @param {{call}} task A callable object, typically a function that takes no
* arguments.
*/
function asap(task) {
var rawTask;
if (freeTasks.length) {
rawTask = freeTasks.pop();
} else {
rawTask = new RawTask();
}
rawTask.task = task;
rawAsap(rawTask);
} // We wrap tasks with recyclable task objects. A task object implements
// `call`, just like a function.
var RawTask =
/** @class */
function () {
function RawTask() {}
RawTask.prototype.call = function () {
try {
this.task.call();
} catch (error) {
if (asap.onerror) {
// This hook exists purely for testing purposes.
// Its name will be periodically randomized to break any code that
// depends on its existence.
asap.onerror(error);
} else {
// In a web browser, exceptions are not fatal. However, to avoid
// slowing down the queue of pending tasks, we rethrow the error in a
// lower priority turn.
pendingErrors.push(error);
requestErrorThrow();
}
} finally {
this.task = null;
freeTasks[freeTasks.length] = this;
}
};
return RawTask;
}();
function _classCallCheck$1(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties$1(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
function _createClass$1(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties$1(Constructor.prototype, protoProps); if (staticProps) _defineProperties$1(Constructor, staticProps); return Constructor; }
function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest(); }
function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }
function _iterableToArrayLimit(arr, i) { if (!(Symbol.iterator in Object(arr) || Object.prototype.toString.call(arr) === "[object Arguments]")) { return; } var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
function getNextHandlerId(role) {
var id = getNextUniqueId().toString();
switch (role) {
case HandlerRole.SOURCE:
return "S".concat(id);
case HandlerRole.TARGET:
return "T".concat(id);
default:
throw new Error("Unknown Handler Role: ".concat(role));
}
}
function parseRoleFromHandlerId(handlerId) {
switch (handlerId[0]) {
case 'S':
return HandlerRole.SOURCE;
case 'T':
return HandlerRole.TARGET;
default:
invariant(false, "Cannot parse handler ID: ".concat(handlerId));
}
}
function mapContainsValue(map, searchValue) {
var entries = map.entries();
var isDone = false;
do {
var _entries$next = entries.next(),
done = _entries$next.done,
_entries$next$value = _slicedToArray(_entries$next.value, 2),
value = _entries$next$value[1];
if (value === searchValue) {
return true;
}
isDone = !!done;
} while (!isDone);
return false;
}
var HandlerRegistryImpl =
/*#__PURE__*/
function () {
function HandlerRegistryImpl(store) {
_classCallCheck$1(this, HandlerRegistryImpl);
this.types = new Map();
this.dragSources = new Map();
this.dropTargets = new Map();
this.pinnedSourceId = null;
this.pinnedSource = null;
this.store = store;
}
_createClass$1(HandlerRegistryImpl, [{
key: "addSource",
value: function addSource$1(type, source) {
validateType(type);
validateSourceContract(source);
var sourceId = this.addHandler(HandlerRole.SOURCE, type, source);
this.store.dispatch(addSource(sourceId));
return sourceId;
}
}, {
key: "addTarget",
value: function addTarget$1(type, target) {
validateType(type, true);
validateTargetContract(target);
var targetId = this.addHandler(HandlerRole.TARGET, type, target);
this.store.dispatch(addTarget(targetId));
return targetId;
}
}, {
key: "containsHandler",
value: function containsHandler(handler) {
return mapContainsValue(this.dragSources, handler) || mapContainsValue(this.dropTargets, handler);
}
}, {
key: "getSource",
value: function getSource(sourceId) {
var includePinned = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
invariant(this.isSourceId(sourceId), 'Expected a valid source ID.');
var isPinned = includePinned && sourceId === this.pinnedSourceId;
var source = isPinned ? this.pinnedSource : this.dragSources.get(sourceId);
return source;
}
}, {
key: "getTarget",
value: function getTarget(targetId) {
invariant(this.isTargetId(targetId), 'Expected a valid target ID.');
return this.dropTargets.get(targetId);
}
}, {
key: "getSourceType",
value: function getSourceType(sourceId) {
invariant(this.isSourceId(sourceId), 'Expected a valid source ID.');
return this.types.get(sourceId);
}
}, {
key: "getTargetType",
value: function getTargetType(targetId) {
invariant(this.isTargetId(targetId), 'Expected a valid target ID.');
return this.types.get(targetId);
}
}, {
key: "isSourceId",
value: function isSourceId(handlerId) {
var role = parseRoleFromHandlerId(handlerId);
return role === HandlerRole.SOURCE;
}
}, {
key: "isTargetId",
value: function isTargetId(handlerId) {
var role = parseRoleFromHandlerId(handlerId);
return role === HandlerRole.TARGET;
}
}, {
key: "removeSource",
value: function removeSource$1(sourceId) {
var _this = this;
invariant(this.getSource(sourceId), 'Expected an existing source.');
this.store.dispatch(removeSource(sourceId));
asap(function () {
_this.dragSources.delete(sourceId);
_this.types.delete(sourceId);
});
}
}, {
key: "removeTarget",
value: function removeTarget$1(targetId) {
invariant(this.getTarget(targetId), 'Expected an existing target.');
this.store.dispatch(removeTarget(targetId));
this.dropTargets.delete(targetId);
this.types.delete(targetId);
}
}, {
key: "pinSource",
value: function pinSource(sourceId) {
var source = this.getSource(sourceId);
invariant(source, 'Expected an existing source.');
this.pinnedSourceId = sourceId;
this.pinnedSource = source;
}
}, {
key: "unpinSource",
value: function unpinSource() {
invariant(this.pinnedSource, 'No source is pinned at the time.');
this.pinnedSourceId = null;
this.pinnedSource = null;
}
}, {
key: "addHandler",
value: function addHandler(role, type, handler) {
var id = getNextHandlerId(role);
this.types.set(id, type);
if (role === HandlerRole.SOURCE) {
this.dragSources.set(id, handler);
} else if (role === HandlerRole.TARGET) {
this.dropTargets.set(id, handler);
}
return id;
}
}]);
return HandlerRegistryImpl;
}();
function _classCallCheck$2(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties$2(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
function _createClass$2(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties$2(Constructor.prototype, protoProps); if (staticProps) _defineProperties$2(Constructor, staticProps); return Constructor; }
function makeStoreInstance(debugMode) {
// TODO: if we ever make a react-native version of this,
// we'll need to consider how to pull off dev-tooling
var reduxDevTools = typeof window !== 'undefined' && window.__REDUX_DEVTOOLS_EXTENSION__;
return createStore(reduce, debugMode && reduxDevTools && reduxDevTools({
name: 'dnd-core',
instanceId: 'dnd-core'
}));
}
var DragDropManagerImpl =
/*#__PURE__*/
function () {
function DragDropManagerImpl() {
var _this = this;
var debugMode = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
_classCallCheck$2(this, DragDropManagerImpl);
this.isSetUp = false;
this.handleRefCountChange = function () {
var shouldSetUp = _this.store.getState().refCount > 0;
if (_this.backend) {
if (shouldSetUp && !_this.isSetUp) {
_this.backend.setup();
_this.isSetUp = true;
} else if (!shouldSetUp && _this.isSetUp) {
_this.backend.teardown();
_this.isSetUp = false;
}
}
};
var store = makeStoreInstance(debugMode);
this.store = store;
this.monitor = new DragDropMonitorImpl(store, new HandlerRegistryImpl(store));
store.subscribe(this.handleRefCountChange);
}
_createClass$2(DragDropManagerImpl, [{
key: "receiveBackend",
value: function receiveBackend(backend) {
this.backend = backend;
}
}, {
key: "getMonitor",
value: function getMonitor() {
return this.monitor;
}
}, {
key: "getBackend",
value: function getBackend() {
return this.backend;
}
}, {
key: "getRegistry",
value: function getRegistry() {
return this.monitor.registry;
}
}, {
key: "getActions",
value: function getActions() {
/* eslint-disable-next-line @typescript-eslint/no-this-alias */
var manager = this;
var dispatch = this.store.dispatch;
function bindActionCreator(actionCreator) {
return function () {
for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
var action = actionCreator.apply(manager, args);
if (typeof action !== 'undefined') {
dispatch(action);
}
};
}
var actions = createDragDropActions(this);
return Object.keys(actions).reduce(function (boundActions, key) {
var action = actions[key];
boundActions[key] = bindActionCreator(action);
return boundActions;
}, {});
}
}, {
key: "dispatch",
value: function dispatch(action) {
this.store.dispatch(action);
}
}]);
return DragDropManagerImpl;
}();
function createDragDropManager(backendFactory, globalContext, backendOptions, debugMode) {
var manager = new DragDropManagerImpl(debugMode);
var backend = backendFactory(manager, globalContext, backendOptions);
manager.receiveBackend(backend);
return manager;
}
/**
* Create the React Context
*/
var DndContext = React.createContext({
dragDropManager: undefined
});
/**
* Creates the context object we're providing
* @param backend
* @param context
*/
function createDndContext(backend, context, options, debugMode) {
return {
dragDropManager: createDragDropManager(backend, context, options, debugMode)
};
}
function _slicedToArray$1(arr, i) { return _arrayWithHoles$1(arr) || _iterableToArrayLimit$1(arr, i) || _nonIterableRest$1(); }
function _nonIterableRest$1() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }
function _iterableToArrayLimit$1(arr, i) { if (!(Symbol.iterator in Object(arr) || Object.prototype.toString.call(arr) === "[object Arguments]")) { return; } var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
function _arrayWithHoles$1(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; }
var refCount$1 = 0;
/**
* A React component that provides the React-DnD context
*/
var DndProvider = React.memo(function (_ref) {
var children = _ref.children,
props = _objectWithoutProperties(_ref, ["children"]);
var _getDndContextValue = getDndContextValue(props),
_getDndContextValue2 = _slicedToArray$1(_getDndContextValue, 2),
manager = _getDndContextValue2[0],
isGlobalInstance = _getDndContextValue2[1]; // memoized from props
/**
* If the global context was used to store the DND context
* then where theres no more references to it we should
* clean it up to avoid memory leaks
*/
React.useEffect(function () {
if (isGlobalInstance) {
refCount$1++;
}
return function () {
if (isGlobalInstance) {
refCount$1--;
if (refCount$1 === 0) {
var context = getGlobalContext();
context[instanceSymbol] = null;
}
}
};
}, []);
return React.createElement(DndContext.Provider, {
value: manager
}, children);
});
DndProvider.displayName = 'DndProvider';
function getDndContextValue(props) {
if ('manager' in props) {
var _manager = {
dragDropManager: props.manager
};
return [_manager, false];
}
var manager = createSingletonDndContext(props.backend, props.context, props.options, props.debugMode);
var isGlobalInstance = !props.context;
return [manager, isGlobalInstance];
}
var instanceSymbol = Symbol.for('__REACT_DND_CONTEXT_INSTANCE__');
function createSingletonDndContext(backend) {
var context = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : getGlobalContext();
var options = arguments.length > 2 ? arguments[2] : undefined;
var debugMode = arguments.length > 3 ? arguments[3] : undefined;
var ctx = context;
if (!ctx[instanceSymbol]) {
ctx[instanceSymbol] = createDndContext(backend, context, options, debugMode);
}
return ctx[instanceSymbol];
}
function getGlobalContext() {
return typeof global !== 'undefined' ? global : window;
}
/*
* A utility for rendering a drag preview image
*/
var DragPreviewImage = React.memo(function (_ref) {
var connect = _ref.connect,
src = _ref.src;
if (typeof Image !== 'undefined') {
var img = new Image();
img.src = src;
img.onload = function () {
return connect(img);
};
}
return null;
});
DragPreviewImage.displayName = 'DragPreviewImage';
var useIsomorphicLayoutEffect = typeof window !== 'undefined' ? React.useLayoutEffect : React.useEffect;
function shallowEqual(objA, objB, compare, compareContext) {
var compareResult = compare ? compare.call(compareContext, objA, objB) : void 0;
if (compareResult !== void 0) {
return !!compareResult;
}
if (objA === objB) {
return true;
}
if (typeof objA !== 'object' || !objA || typeof objB !== 'object' || !objB) {
return false;
}
var keysA = Object.keys(objA);
var keysB = Object.keys(objB);
if (keysA.length !== keysB.length) {
return false;
}
var bHasOwnProperty = Object.prototype.hasOwnProperty.bind(objB); // Test for A's keys different from B.
for (var idx = 0; idx < keysA.length; idx++) {
var key = keysA[idx];
if (!bHasOwnProperty(key)) {
return false;
}
var valueA = objA[key];
var valueB = objB[key];
compareResult = compare ? compare.call(compareContext, valueA, valueB, key) : void 0;
if (compareResult === false || compareResult === void 0 && valueA !== valueB) {
return false;
}
}
return true;
}
function _slicedToArray$2(arr, i) { return _arrayWithHoles$2(arr) || _iterableToArrayLimit$2(arr, i) || _nonIterableRest$2(); }
function _nonIterableRest$2() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }
function _iterableToArrayLimit$2(arr, i) { if (!(Symbol.iterator in Object(arr) || Object.prototype.toString.call(arr) === "[object Arguments]")) { return; } var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
function _arrayWithHoles$2(arr) { if (Array.isArray(arr)) return arr; }
/**
*
* @param monitor The monitor to collect state from
* @param collect The collecting function
* @param onUpdate A method to invoke when updates occur
*/
function useCollector(monitor, collect, onUpdate) {
var _useState = React.useState(function () {
return collect(monitor);
}),
_useState2 = _slicedToArray$2(_useState, 2),
collected = _useState2[0],
setCollected = _useState2[1];
var updateCollected = React.useCallback(function () {
var nextValue = collect(monitor);
if (!shallowEqual(collected, nextValue)) {
setCollected(nextValue);
if (onUpdate) {
onUpdate();
}
}
}, [collected, monitor, onUpdate]); // update the collected properties after the first render
// and the components are attached to dnd-core
useIsomorphicLayoutEffect(updateCollected, []);
return [collected, updateCollected];
}
function _slicedToArray$3(arr, i) { return _arrayWithHoles$3(arr) || _iterableToArrayLimit$3(arr, i) || _nonIterableRest$3(); }
function _nonIterableRest$3() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }
function _iterableToArrayLimit$3(arr, i) { if (!(Symbol.iterator in Object(arr) || Object.prototype.toString.call(arr) === "[object Arguments]")) { return; } var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
function _arrayWithHoles$3(arr) { if (Array.isArray(arr)) return arr; }
function useMonitorOutput(monitor, collect, onCollect) {
var _useCollector = useCollector(monitor, collect, onCollect),
_useCollector2 = _slicedToArray$3(_useCollector, 2),
collected = _useCollector2[0],
updateCollected = _useCollector2[1];
useIsomorphicLayoutEffect(function subscribeToMonitorStateChange() {
var handlerId = monitor.getHandlerId();
if (handlerId == null) {
return undefined;
}
return monitor.subscribeToStateChange(updateCollected, {
handlerIds: [handlerId]
});
}, [monitor, updateCollected]);
return collected;
}
function registerTarget(type, target, manager) {
var registry = manager.getRegistry();
var targetId = registry.addTarget(type, target);
return [targetId, function () {
return registry.removeTarget(targetId);
}];
}
function registerSource(type, source, manager) {
var registry = manager.getRegistry();
var sourceId = registry.addSource(type, source);
return [sourceId, function () {
return registry.removeSource(sourceId);
}];
}
/**
* A hook to retrieve the DragDropManager from Context
*/
function useDragDropManager() {
var _useContext = React.useContext(DndContext),
dragDropManager = _useContext.dragDropManager;
invariant(dragDropManager != null, 'Expected drag drop context');
return dragDropManager;
}
function _classCallCheck$3(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties$3(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
function _createClass$3(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties$3(Constructor.prototype, protoProps); if (staticProps) _defineProperties$3(Constructor, staticProps); return Constructor; }
var isCallingCanDrag = false;
var isCallingIsDragging = false;
var DragSourceMonitorImpl =
/*#__PURE__*/
function () {
function DragSourceMonitorImpl(manager) {
_classCallCheck$3(this, DragSourceMonitorImpl);
this.sourceId = null;
this.internalMonitor = manager.getMonitor();
}
_createClass$3(DragSourceMonitorImpl, [{
key: "receiveHandlerId",
value: function receiveHandlerId(sourceId) {
this.sourceId = sourceId;
}
}, {
key: "getHandlerId",
value: function getHandlerId() {
return this.sourceId;
}
}, {
key: "canDrag",
value: function canDrag() {
invariant(!isCallingCanDrag, 'You may not call monitor.canDrag() inside your canDrag() implementation. ' + 'Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-source-monitor');
try {
isCallingCanDrag = true;
return this.internalMonitor.canDragSource(this.sourceId);
} finally {
isCallingCanDrag = false;
}
}
}, {
key: "isDragging",
value: function isDragging() {
if (!this.sourceId) {
return false;
}
invariant(!isCallingIsDragging, 'You may not call monitor.isDragging() inside your isDragging() implementation. ' + 'Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-source-monitor');
try {
isCallingIsDragging = true;
return this.internalMonitor.isDraggingSource(this.sourceId);
} finally {
isCallingIsDragging = false;
}
}
}, {
key: "subscribeToStateChange",
value: function subscribeToStateChange(listener, options) {
return this.internalMonitor.subscribeToStateChange(listener, options);
}
}, {
key: "isDraggingSource",
value: function isDraggingSource(sourceId) {
return this.internalMonitor.isDraggingSource(sourceId);
}
}, {
key: "isOverTarget",
value: function isOverTarget(targetId, options) {
return this.internalMonitor.isOverTarget(targetId, options);
}
}, {
key: "getTargetIds",
value: function getTargetIds() {
return this.internalMonitor.getTargetIds();
}
}, {
key: "isSourcePublic",
value: function isSourcePublic() {
return this.internalMonitor.isSourcePublic();
}
}, {
key: "getSourceId",
value: function getSourceId() {
return this.internalMonitor.getSourceId();
}
}, {
key: "subscribeToOffsetChange",
value: function subscribeToOffsetChange(listener) {
return this.internalMonitor.subscribeToOffsetChange(listener);
}
}, {
key: "canDragSource",
value: function canDragSource(sourceId) {
return this.internalMonitor.canDragSource(sourceId);
}
}, {
key: "canDropOnTarget",
value: function canDropOnTarget(targetId) {
return this.internalMonitor.canDropOnTarget(targetId);
}
}, {
key: "getItemType",
value: function getItemType() {
return this.internalMonitor.getItemType();
}
}, {
key: "getItem",
value: function getItem() {
return this.internalMonitor.getItem();
}
}, {
key: "getDropResult",
value: function getDropResult() {
return this.internalMonitor.getDropResult();
}
}, {
key: "didDrop",
value: function didDrop() {
return this.internalMonitor.didDrop();
}
}, {
key: "getInitialClientOffset",
value: function getInitialClientOffset() {
return this.internalMonitor.getInitialClientOffset();
}
}, {
key: "getInitialSourceClientOffset",
value: function getInitialSourceClientOffset() {
return this.internalMonitor.getInitialSourceClientOffset();
}
}, {
key: "getSourceClientOffset",
value: function getSourceClientOffset() {
return this.internalMonitor.getSourceClientOffset();
}
}, {
key: "getClientOffset",
value: function getClientOffset() {
return this.internalMonitor.getClientOffset();
}
}, {
key: "getDifferenceFromInitialOffset",
value: function getDifferenceFromInitialOffset() {
return this.internalMonitor.getDifferenceFromInitialOffset();
}
}]);
return DragSourceMonitorImpl;
}();
function setRef(ref, node) {
if (typeof ref === 'function') {
ref(node);
} else {
ref.current = node;
}
}
function cloneWithRef(element, newRef) {
var previousRef = element.ref;
invariant(typeof previousRef !== 'string', 'Cannot connect React DnD to an element with an existing string ref. ' + 'Please convert it to use a callback ref instead, or wrap it into a <span> or <div>. ' + 'Read more: https://facebook.github.io/react/docs/more-about-refs.html#the-ref-callback-attribute');
if (!previousRef) {
// When there is no ref on the element, use the new ref directly
return React.cloneElement(element, {
ref: newRef
});
} else {
return React.cloneElement(element, {
ref: function ref(node) {
setRef(previousRef, node);
setRef(newRef, node);
}
});
}
}
function throwIfCompositeComponentElement(element) {
// Custom components can no longer be wrapped directly in React DnD 2.0
// so that we don't need to depend on findDOMNode() from react-dom.
if (typeof element.type === 'string') {
return;
}
var displayName = element.type.displayName || element.type.name || 'the component';
throw new Error('Only native element nodes can now be passed to React DnD connectors.' + "You can either wrap ".concat(displayName, " into a <div>, or turn it into a ") + 'drag source or a drop target itself.');
}
function wrapHookToRecognizeElement(hook) {
return function () {
var elementOrNode = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
// When passed a node, call the hook straight away.
if (!React.isValidElement(elementOrNode)) {
var node = elementOrNode;
hook(node, options); // return the node so it can be chained (e.g. when within callback refs
// <div ref={node => connectDragSource(connectDropTarget(node))}/>
return node;
} // If passed a ReactElement, clone it and attach this function as a ref.
// This helps us achieve a neat API where user doesn't even know that refs
// are being used under the hood.
var element = elementOrNode;
throwIfCompositeComponentElement(element); // When no options are passed, use the hook directly
var ref = options ? function (node) {
return hook(node, options);
} : hook;
return cloneWithRef(element, ref);
};
}
function wrapConnectorHooks(hooks) {
var wrappedHooks = {};
Object.keys(hooks).forEach(function (key) {
var hook = hooks[key]; // ref objects should be passed straight through without wrapping
if (key.endsWith('Ref')) {
wrappedHooks[key] = hooks[key];
} else {
var wrappedHook = wrapHookToRecognizeElement(hook);
wrappedHooks[key] = function () {
return wrappedHook;
};
}
});
return wrappedHooks;
}
function _typeof$2(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof$2 = function _typeof(obj) { return typeof obj; }; } else { _typeof$2 = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof$2(obj); }
function isRef(obj) {
return (// eslint-disable-next-line no-prototype-builtins
obj !== null && _typeof$2(obj) === 'object' && obj.hasOwnProperty('current')
);
}
function _classCallCheck$4(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties$4(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
function _createClass$4(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties$4(Constructor.prototype, protoProps); if (staticProps) _defineProperties$4(Constructor, staticProps); return Constructor; }
var SourceConnector =
/*#__PURE__*/
function () {
function SourceConnector(backend) {
var _this = this;
_classCallCheck$4(this, SourceConnector);
this.hooks = wrapConnectorHooks({
dragSource: function dragSource(node, options) {
_this.clearDragSource();
_this.dragSourceOptions = options || null;
if (isRef(node)) {
_this.dragSourceRef = node;
} else {
_this.dragSourceNode = node;
}
_this.reconnectDragSource();
},
dragPreview: function dragPreview(node, options) {
_this.clearDragPreview();
_this.dragPreviewOptions = options || null;
if (isRef(node)) {
_this.dragPreviewRef = node;
} else {
_this.dragPreviewNode = node;
}
_this.reconnectDragPreview();
}
});
this.handlerId = null; // The drop target may either be attached via ref or connect function
this.dragSourceRef = null;
this.dragSourceOptionsInternal = null; // The drag preview may either be attached via ref or connect function
this.dragPreviewRef = null;
this.dragPreviewOptionsInternal = null;
this.lastConnectedHandlerId = null;
this.lastConnectedDragSource = null;
this.lastConnectedDragSourceOptions = null;
this.lastConnectedDragPreview = null;
this.lastConnectedDragPreviewOptions = null;
this.backend = backend;
}
_createClass$4(SourceConnector, [{
key: "receiveHandlerId",
value: function receiveHandlerId(newHandlerId) {
if (this.handlerId === newHandlerId) {
return;
}
this.handlerId = newHandlerId;
this.reconnect();
}
}, {
key: "reconnect",
value: function reconnect() {
this.reconnectDragSource();
this.reconnectDragPreview();
}
}, {
key: "reconnectDragSource",
value: function reconnectDragSource() {
var dragSource = this.dragSource; // if nothing has changed then don't resubscribe
var didChange = this.didHandlerIdChange() || this.didConnectedDragSourceChange() || this.didDragSourceOptionsChange();
if (didChange) {
this.disconnectDragSource();
}
if (!this.handlerId) {
return;
}
if (!dragSource) {
this.lastConnectedDragSource = dragSource;
return;
}
if (didChange) {
this.lastConnectedHandlerId = this.handlerId;
this.lastConnectedDragSource = dragSource;
this.lastConnectedDragSourceOptions = this.dragSourceOptions;
this.dragSourceUnsubscribe = this.backend.connectDragSource(this.handlerId, dragSource, this.dragSourceOptions);
}
}
}, {
key: "reconnectDragPreview",
value: function reconnectDragPreview() {
var dragPreview = this.dragPreview; // if nothing has changed then don't resubscribe
var didChange = this.didHandlerIdChange() || this.didConnectedDragPreviewChange() || this.didDragPreviewOptionsChange();
if (!this.handlerId) {
this.disconnectDragPreview();
} else if (this.dragPreview && didChange) {
this.lastConnectedHandlerId = this.handlerId;
this.lastConnectedDragPreview = dragPreview;
this.lastConnectedDragPreviewOptions = this.dragPreviewOptions;
this.disconnectDragPreview();
this.dragPreviewUnsubscribe = this.backend.connectDragPreview(this.handlerId, dragPreview, this.dragPreviewOptions);
}
}
}, {
key: "didHandlerIdChange",
value: function didHandlerIdChange() {
return this.lastConnectedHandlerId !== this.handlerId;
}
}, {
key: "didConnectedDragSourceChange",
value: function didConnectedDragSourceChange() {
return this.lastConnectedDragSource !== this.dragSource;
}
}, {
key: "didConnectedDragPreviewChange",
value: function didConnectedDragPreviewChange() {
return this.lastConnectedDragPreview !== this.dragPreview;
}
}, {
key: "didDragSourceOptionsChange",
value: function didDragSourceOptionsChange() {
return !shallowEqual(this.lastConnectedDragSourceOptions, this.dragSourceOptions);
}
}, {
key: "didDragPreviewOptionsChange",
value: function didDragPreviewOptionsChange() {
return !shallowEqual(this.lastConnectedDragPreviewOptions, this.dragPreviewOptions);
}
}, {
key: "disconnectDragSource",
value: function disconnectDragSource() {
if (this.dragSourceUnsubscribe) {
this.dragSourceUnsubscribe();
this.dragSourceUnsubscribe = undefined;
}
}
}, {
key: "disconnectDragPreview",
value: function disconnectDragPreview() {
if (this.dragPreviewUnsubscribe) {
this.dragPreviewUnsubscribe();
this.dragPreviewUnsubscribe = undefined;
this.dragPreviewNode = null;
this.dragPreviewRef = null;
}
}
}, {
key: "clearDragSource",
value: function clearDragSource() {
this.dragSourceNode = null;
this.dragSourceRef = null;
}
}, {
key: "clearDragPreview",
value: function clearDragPreview() {
this.dragPreviewNode = null;
this.dragPreviewRef = null;
}
}, {
key: "connectTarget",
get: function get() {
return this.dragSource;
}
}, {
key: "dragSourceOptions",
get: function get() {
return this.dragSourceOptionsInternal;
},
set: function set(options) {
this.dragSourceOptionsInternal = options;
}
}, {
key: "dragPreviewOptions",
get: function get() {
return this.dragPreviewOptionsInternal;
},
set: function set(options) {
this.dragPreviewOptionsInternal = options;
}
}, {
key: "dragSource",
get: function get() {
return this.dragSourceNode || this.dragSourceRef && this.dragSourceRef.current;
}
}, {
key: "dragPreview",
get: function get() {
return this.dragPreviewNode || this.dragPreviewRef && this.dragPreviewRef.current;
}
}]);
return SourceConnector;
}();
function _slicedToArray$4(arr, i) { return _arrayWithHoles$4(arr) || _iterableToArrayLimit$4(arr, i) || _nonIterableRest$4(); }
function _nonIterableRest$4() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }
function _iterableToArrayLimit$4(arr, i) { if (!(Symbol.iterator in Object(arr) || Object.prototype.toString.call(arr) === "[object Arguments]")) { return; } var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
function _arrayWithHoles$4(arr) { if (Array.isArray(arr)) return arr; }
function _typeof$3(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof$3 = function _typeof(obj) { return typeof obj; }; } else { _typeof$3 = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof$3(obj); }
function useDragSourceMonitor() {
var manager = useDragDropManager();
var monitor = React.useMemo(function () {
return new DragSourceMonitorImpl(manager);
}, [manager]);
var connector = React.useMemo(function () {
return new SourceConnector(manager.getBackend());
}, [manager]);
return [monitor, connector];
}
function useDragHandler(spec, monitor, connector) {
var manager = useDragDropManager();
var handler = React.useMemo(function () {
return {
beginDrag: function beginDrag() {
var _spec$current = spec.current,
begin = _spec$current.begin,
item = _spec$current.item;
if (begin) {
var beginResult = begin(monitor);
invariant(beginResult == null || _typeof$3(beginResult) === 'object', 'dragSpec.begin() must either return an object, undefined, or null');
return beginResult || item || {};
}
return item || {};
},
canDrag: function canDrag() {
if (typeof spec.current.canDrag === 'boolean') {
return spec.current.canDrag;
} else if (typeof spec.current.canDrag === 'function') {
return spec.current.canDrag(monitor);
} else {
return true;
}
},
isDragging: function isDragging(globalMonitor, target) {
var isDragging = spec.current.isDragging;
return isDragging ? isDragging(monitor) : target === globalMonitor.getSourceId();
},
endDrag: function endDrag() {
var end = spec.current.end;
if (end) {
end(monitor.getItem(), monitor);
}
connector.reconnect();
}
};
}, []);
useIsomorphicLayoutEffect(function registerHandler() {
var _registerSource = registerSource(spec.current.item.type, handler, manager),
_registerSource2 = _slicedToArray$4(_registerSource, 2),
handlerId = _registerSource2[0],
unregister = _registerSource2[1];
monitor.receiveHandlerId(handlerId);
connector.receiveHandlerId(handlerId);
return unregister;
}, []);
}
function _slicedToArray$5(arr, i) { return _arrayWithHoles$5(arr) || _iterableToArrayLimit$5(arr, i) || _nonIterableRest$5(); }
function _nonIterableRest$5() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }
function _iterableToArrayLimit$5(arr, i) { if (!(Symbol.iterator in Object(arr) || Object.prototype.toString.call(arr) === "[object Arguments]")) { return; } var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
function _arrayWithHoles$5(arr) { if (Array.isArray(arr)) return arr; }
/**
* useDragSource hook
* @param sourceSpec The drag source specification *
*/
function useDrag(spec) {
var specRef = React.useRef(spec);
specRef.current = spec; // TODO: wire options into createSourceConnector
invariant(spec.item != null, 'item must be defined');
invariant(spec.item.type != null, 'item type must be defined');
var _useDragSourceMonitor = useDragSourceMonitor(),
_useDragSourceMonitor2 = _slicedToArray$5(_useDragSourceMonitor, 2),
monitor = _useDragSourceMonitor2[0],
connector = _useDragSourceMonitor2[1];
useDragHandler(specRef, monitor, connector);
var result = useMonitorOutput(monitor, specRef.current.collect || function () {
return {};
}, function () {
return connector.reconnect();
});
var connectDragSource = React.useMemo(function () {
return connector.hooks.dragSource();
}, [connector]);
var connectDragPreview = React.useMemo(function () {
return connector.hooks.dragPreview();
}, [connector]);
useIsomorphicLayoutEffect(function () {
connector.dragSourceOptions = specRef.current.options || null;
connector.reconnect();
}, [connector]);
useIsomorphicLayoutEffect(function () {
connector.dragPreviewOptions = specRef.current.previewOptions || null;
connector.reconnect();
}, [connector]);
return [result, connectDragSource, connectDragPreview];
}
function _classCallCheck$5(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties$5(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
function _createClass$5(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties$5(Constructor.prototype, protoProps); if (staticProps) _defineProperties$5(Constructor, staticProps); return Constructor; }
var TargetConnector =
/*#__PURE__*/
function () {
function TargetConnector(backend) {
var _this = this;
_classCallCheck$5(this, TargetConnector);
this.hooks = wrapConnectorHooks({
dropTarget: function dropTarget(node, options) {
_this.clearDropTarget();
_this.dropTargetOptions = options;
if (isRef(node)) {
_this.dropTargetRef = node;
} else {
_this.dropTargetNode = node;
}
_this.reconnect();
}
});
this.handlerId = null; // The drop target may either be attached via ref or connect function
this.dropTargetRef = null;
this.dropTargetOptionsInternal = null;
this.lastConnectedHandlerId = null;
this.lastConnectedDropTarget = null;
this.lastConnectedDropTargetOptions = null;
this.backend = backend;
}
_createClass$5(TargetConnector, [{
key: "reconnect",
value: function reconnect() {
// if nothing has changed then don't resubscribe
var didChange = this.didHandlerIdChange() || this.didDropTargetChange() || this.didOptionsChange();
if (didChange) {
this.disconnectDropTarget();
}
var dropTarget = this.dropTarget;
if (!this.handlerId) {
return;
}
if (!dropTarget) {
this.lastConnectedDropTarget = dropTarget;
return;
}
if (didChange) {
this.lastConnectedHandlerId = this.handlerId;
this.lastConnectedDropTarget = dropTarget;
this.lastConnectedDropTargetOptions = this.dropTargetOptions;
this.unsubscribeDropTarget = this.backend.connectDropTarget(this.handlerId, dropTarget, this.dropTargetOptions);
}
}
}, {
key: "receiveHandlerId",
value: function receiveHandlerId(newHandlerId) {
if (newHandlerId === this.handlerId) {
return;
}
this.handlerId = newHandlerId;
this.reconnect();
}
}, {
key: "didHandlerIdChange",
value: function didHandlerIdChange() {
return this.lastConnectedHandlerId !== this.handlerId;
}
}, {
key: "didDropTargetChange",
value: function didDropTargetChange() {
return this.lastConnectedDropTarget !== this.dropTarget;
}
}, {
key: "didOptionsChange",
value: function didOptionsChange() {
return !shallowEqual(this.lastConnectedDropTargetOptions, this.dropTargetOptions);
}
}, {
key: "disconnectDropTarget",
value: function disconnectDropTarget() {
if (this.unsubscribeDropTarget) {
this.unsubscribeDropTarget();
this.unsubscribeDropTarget = undefined;
}
}
}, {
key: "clearDropTarget",
value: function clearDropTarget() {
this.dropTargetRef = null;
this.dropTargetNode = null;
}
}, {
key: "connectTarget",
get: function get() {
return this.dropTarget;
}
}, {
key: "dropTargetOptions",
get: function get() {
return this.dropTargetOptionsInternal;
},
set: function set(options) {
this.dropTargetOptionsInternal = options;
}
}, {
key: "dropTarget",
get: function get() {
return this.dropTargetNode || this.dropTargetRef && this.dropTargetRef.current;
}
}]);
return TargetConnector;
}();
function _classCallCheck$6(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties$6(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
function _createClass$6(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties$6(Constructor.prototype, protoProps); if (staticProps) _defineProperties$6(Constructor, staticProps); return Constructor; }
var isCallingCanDrop = false;
var DropTargetMonitorImpl =
/*#__PURE__*/
function () {
function DropTargetMonitorImpl(manager) {
_classCallCheck$6(this, DropTargetMonitorImpl);
this.targetId = null;
this.internalMonitor = manager.getMonitor();
}
_createClass$6(DropTargetMonitorImpl, [{
key: "receiveHandlerId",
value: function receiveHandlerId(targetId) {
this.targetId = targetId;
}
}, {
key: "getHandlerId",
value: function getHandlerId() {
return this.targetId;
}
}, {
key: "subscribeToStateChange",
value: function subscribeToStateChange(listener, options) {
return this.internalMonitor.subscribeToStateChange(listener, options);
}
}, {
key: "canDrop",
value: function canDrop() {
// Cut out early if the target id has not been set. This should prevent errors
// where the user has an older version of dnd-core like in
// https://github.com/react-dnd/react-dnd/issues/1310
if (!this.targetId) {
return false;
}
invariant(!isCallingCanDrop, 'You may not call monitor.canDrop() inside your canDrop() implementation. ' + 'Read more: http://react-dnd.github.io/react-dnd/docs/api/drop-target-monitor');
try {
isCallingCanDrop = true;
return this.internalMonitor.canDropOnTarget(this.targetId);
} finally {
isCallingCanDrop = false;
}
}
}, {
key: "isOver",
value: function isOver(options) {
if (!this.targetId) {
return false;
}
return this.internalMonitor.isOverTarget(this.targetId, options);
}
}, {
key: "getItemType",
value: function getItemType() {
return this.internalMonitor.getItemType();
}
}, {
key: "getItem",
value: function getItem() {
return this.internalMonitor.getItem();
}
}, {
key: "getDropResult",
value: function getDropResult() {
return this.internalMonitor.getDropResult();
}
}, {
key: "didDrop",
value: function didDrop() {
return this.internalMonitor.didDrop();
}
}, {
key: "getInitialClientOffset",
value: function getInitialClientOffset() {
return this.internalMonitor.getInitialClientOffset();
}
}, {
key: "getInitialSourceClientOffset",
value: function getInitialSourceClientOffset() {
return this.internalMonitor.getInitialSourceClientOffset();
}
}, {
key: "getSourceClientOffset",
value: function getSourceClientOffset() {
return this.internalMonitor.getSourceClientOffset();
}
}, {
key: "getClientOffset",
value: function getClientOffset() {
return this.internalMonitor.getClientOffset();
}
}, {
key: "getDifferenceFromInitialOffset",
value: function getDifferenceFromInitialOffset() {
return this.internalMonitor.getDifferenceFromInitialOffset();
}
}]);
return DropTargetMonitorImpl;
}();
function _slicedToArray$6(arr, i) { return _arrayWithHoles$6(arr) || _iterableToArrayLimit$6(arr, i) || _nonIterableRest$6(); }
function _nonIterableRest$6() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }
function _iterableToArrayLimit$6(arr, i) { if (!(Symbol.iterator in Object(arr) || Object.prototype.toString.call(arr) === "[object Arguments]")) { return; } var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
function _arrayWithHoles$6(arr) { if (Array.isArray(arr)) return arr; }
function useDropTargetMonitor() {
var manager = useDragDropManager();
var monitor = React.useMemo(function () {
return new DropTargetMonitorImpl(manager);
}, [manager]);
var connector = React.useMemo(function () {
return new TargetConnector(manager.getBackend());
}, [manager]);
return [monitor, connector];
}
function useDropHandler(spec, monitor, connector) {
var manager = useDragDropManager();
var handler = React.useMemo(function () {
return {
canDrop: function canDrop() {
var canDrop = spec.current.canDrop;
return canDrop ? canDrop(monitor.getItem(), monitor) : true;
},
hover: function hover() {
var hover = spec.current.hover;
if (hover) {
hover(monitor.getItem(), monitor);
}
},
drop: function drop() {
var drop = spec.current.drop;
if (drop) {
return drop(monitor.getItem(), monitor);
}
}
};
}, [monitor]);
useIsomorphicLayoutEffect(function registerHandler() {
var _registerTarget = registerTarget(spec.current.accept, handler, manager),
_registerTarget2 = _slicedToArray$6(_registerTarget, 2),
handlerId = _registerTarget2[0],
unregister = _registerTarget2[1];
monitor.receiveHandlerId(handlerId);
connector.receiveHandlerId(handlerId);
return unregister;
}, [monitor, connector]);
}
function _slicedToArray$7(arr, i) { return _arrayWithHoles$7(arr) || _iterableToArrayLimit$7(arr, i) || _nonIterableRest$7(); }
function _nonIterableRest$7() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }
function _iterableToArrayLimit$7(arr, i) { if (!(Symbol.iterator in Object(arr) || Object.prototype.toString.call(arr) === "[object Arguments]")) { return; } var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
function _arrayWithHoles$7(arr) { if (Array.isArray(arr)) return arr; }
/**
* useDropTarget Hook
* @param spec The drop target specification
*/
function useDrop(spec) {
var specRef = React.useRef(spec);
specRef.current = spec;
invariant(spec.accept != null, 'accept must be defined');
var _useDropTargetMonitor = useDropTargetMonitor(),
_useDropTargetMonitor2 = _slicedToArray$7(_useDropTargetMonitor, 2),
monitor = _useDropTargetMonitor2[0],
connector = _useDropTargetMonitor2[1];
useDropHandler(specRef, monitor, connector);
var result = useMonitorOutput(monitor, specRef.current.collect || function () {
return {};
}, function () {
return connector.reconnect();
});
var connectDropTarget = React.useMemo(function () {
return connector.hooks.dropTarget();
}, [connector]);
useIsomorphicLayoutEffect(function () {
connector.dropTargetOptions = spec.options || null;
connector.reconnect();
}, [spec.options]);
return [result, connectDropTarget];
}
function _slicedToArray$8(arr, i) { return _arrayWithHoles$8(arr) || _iterableToArrayLimit$8(arr, i) || _nonIterableRest$8(); }
function _nonIterableRest$8() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }
function _iterableToArrayLimit$8(arr, i) { if (!(Symbol.iterator in Object(arr) || Object.prototype.toString.call(arr) === "[object Arguments]")) { return; } var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
function _arrayWithHoles$8(arr) { if (Array.isArray(arr)) return arr; }
/**
* useDragLayer Hook
* @param collector The property collector
*/
function useDragLayer(collect) {
var dragDropManager = useDragDropManager();
var monitor = dragDropManager.getMonitor();
var _useCollector = useCollector(monitor, collect),
_useCollector2 = _slicedToArray$8(_useCollector, 2),
collected = _useCollector2[0],
updateCollected = _useCollector2[1];
React.useEffect(function () {
return monitor.subscribeToOffsetChange(updateCollected);
});
React.useEffect(function () {
return monitor.subscribeToStateChange(updateCollected);
});
return collected;
}
function _typeof$4(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof$4 = function _typeof(obj) { return typeof obj; }; } else { _typeof$4 = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof$4(obj); }
// cheap lodash replacements
function isFunction(input) {
return typeof input === 'function';
}
function noop() {// noop
}
function isObjectLike(input) {
return _typeof$4(input) === 'object' && input !== null;
}
function isPlainObject$1(input) {
if (!isObjectLike(input)) {
return false;
}
if (Object.getPrototypeOf(input) === null) {
return true;
}
var proto = input;
while (Object.getPrototypeOf(proto) !== null) {
proto = Object.getPrototypeOf(proto);
}
return Object.getPrototypeOf(input) === proto;
}
function getDecoratedComponent(instanceRef) {
var currentRef = instanceRef.current;
if (currentRef == null) {
return null;
} else if (currentRef.decoratedRef) {
// go through the private field in decorateHandler to avoid the invariant hit
return currentRef.decoratedRef.current;
} else {
return currentRef;
}
}
function isClassComponent(Component) {
return Component && Component.prototype && typeof Component.prototype.render === 'function';
}
function isRefForwardingComponent(C) {
return C && C.$$typeof && C.$$typeof.toString() === 'Symbol(react.forward_ref)';
}
function isRefable(C) {
return isClassComponent(C) || isRefForwardingComponent(C);
}
function checkDecoratorArguments(functionName, signature) {
if ("development" !== 'production') {
for (var i = 0; i < (arguments.length <= 2 ? 0 : arguments.length - 2); i++) {
var arg = i + 2 < 2 || arguments.length <= i + 2 ? undefined : arguments[i + 2];
if (arg && arg.prototype && arg.prototype.render) {
// eslint-disable-next-line no-console
console.error('You seem to be applying the arguments in the wrong order. ' + "It should be ".concat(functionName, "(").concat(signature, ")(Component), not the other way around. ") + 'Read more: http://react-dnd.github.io/react-dnd/docs/troubleshooting#you-seem-to-be-applying-the-arguments-in-the-wrong-order');
return;
}
}
}
}
function unwrapExports (x) {
return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
}
function createCommonjsModule(fn, module) {
return module = { exports: {} }, fn(module, module.exports), module.exports;
}
var reactIs_production_min = createCommonjsModule(function (module, exports) {
Object.defineProperty(exports,"__esModule",{value:!0});
var b="function"===typeof Symbol&&Symbol.for,c=b?Symbol.for("react.element"):60103,d=b?Symbol.for("react.portal"):60106,e=b?Symbol.for("react.fragment"):60107,f=b?Symbol.for("react.strict_mode"):60108,g=b?Symbol.for("react.profiler"):60114,h=b?Symbol.for("react.provider"):60109,k=b?Symbol.for("react.context"):60110,l=b?Symbol.for("react.async_mode"):60111,m=b?Symbol.for("react.concurrent_mode"):60111,n=b?Symbol.for("react.forward_ref"):60112,p=b?Symbol.for("react.suspense"):60113,q=b?Symbol.for("react.suspense_list"):
60120,r=b?Symbol.for("react.memo"):60115,t=b?Symbol.for("react.lazy"):60116,v=b?Symbol.for("react.fundamental"):60117,w=b?Symbol.for("react.responder"):60118,x=b?Symbol.for("react.scope"):60119;function y(a){if("object"===typeof a&&null!==a){var u=a.$$typeof;switch(u){case c:switch(a=a.type,a){case l:case m:case e:case g:case f:case p:return a;default:switch(a=a&&a.$$typeof,a){case k:case n:case t:case r:case h:return a;default:return u}}case d:return u}}}function z(a){return y(a)===m}
exports.typeOf=y;exports.AsyncMode=l;exports.ConcurrentMode=m;exports.ContextConsumer=k;exports.ContextProvider=h;exports.Element=c;exports.ForwardRef=n;exports.Fragment=e;exports.Lazy=t;exports.Memo=r;exports.Portal=d;exports.Profiler=g;exports.StrictMode=f;exports.Suspense=p;
exports.isValidElementType=function(a){return "string"===typeof a||"function"===typeof a||a===e||a===m||a===g||a===f||a===p||a===q||"object"===typeof a&&null!==a&&(a.$$typeof===t||a.$$typeof===r||a.$$typeof===h||a.$$typeof===k||a.$$typeof===n||a.$$typeof===v||a.$$typeof===w||a.$$typeof===x)};exports.isAsyncMode=function(a){return z(a)||y(a)===l};exports.isConcurrentMode=z;exports.isContextConsumer=function(a){return y(a)===k};exports.isContextProvider=function(a){return y(a)===h};
exports.isElement=function(a){return "object"===typeof a&&null!==a&&a.$$typeof===c};exports.isForwardRef=function(a){return y(a)===n};exports.isFragment=function(a){return y(a)===e};exports.isLazy=function(a){return y(a)===t};exports.isMemo=function(a){return y(a)===r};exports.isPortal=function(a){return y(a)===d};exports.isProfiler=function(a){return y(a)===g};exports.isStrictMode=function(a){return y(a)===f};exports.isSuspense=function(a){return y(a)===p};
});
unwrapExports(reactIs_production_min);
var reactIs_production_min_1 = reactIs_production_min.typeOf;
var reactIs_production_min_2 = reactIs_production_min.AsyncMode;
var reactIs_production_min_3 = reactIs_production_min.ConcurrentMode;
var reactIs_production_min_4 = reactIs_production_min.ContextConsumer;
var reactIs_production_min_5 = reactIs_production_min.ContextProvider;
var reactIs_production_min_6 = reactIs_production_min.Element;
var reactIs_production_min_7 = reactIs_production_min.ForwardRef;
var reactIs_production_min_8 = reactIs_production_min.Fragment;
var reactIs_production_min_9 = reactIs_production_min.Lazy;
var reactIs_production_min_10 = reactIs_production_min.Memo;
var reactIs_production_min_11 = reactIs_production_min.Portal;
var reactIs_production_min_12 = reactIs_production_min.Profiler;
var reactIs_production_min_13 = reactIs_production_min.StrictMode;
var reactIs_production_min_14 = reactIs_production_min.Suspense;
var reactIs_production_min_15 = reactIs_production_min.isValidElementType;
var reactIs_production_min_16 = reactIs_production_min.isAsyncMode;
var reactIs_production_min_17 = reactIs_production_min.isConcurrentMode;
var reactIs_production_min_18 = reactIs_production_min.isContextConsumer;
var reactIs_production_min_19 = reactIs_production_min.isContextProvider;
var reactIs_production_min_20 = reactIs_production_min.isElement;
var reactIs_production_min_21 = reactIs_production_min.isForwardRef;
var reactIs_production_min_22 = reactIs_production_min.isFragment;
var reactIs_production_min_23 = reactIs_production_min.isLazy;
var reactIs_production_min_24 = reactIs_production_min.isMemo;
var reactIs_production_min_25 = reactIs_production_min.isPortal;
var reactIs_production_min_26 = reactIs_production_min.isProfiler;
var reactIs_production_min_27 = reactIs_production_min.isStrictMode;
var reactIs_production_min_28 = reactIs_production_min.isSuspense;
var reactIs_development = createCommonjsModule(function (module, exports) {
if ("development" !== "production") {
(function() {
Object.defineProperty(exports, '__esModule', { value: true });
// The Symbol used to tag the ReactElement-like types. If there is no native Symbol
// nor polyfill, then a plain number is used for performance.
var hasSymbol = typeof Symbol === 'function' && Symbol.for;
var REACT_ELEMENT_TYPE = hasSymbol ? Symbol.for('react.element') : 0xeac7;
var REACT_PORTAL_TYPE = hasSymbol ? Symbol.for('react.portal') : 0xeaca;
var REACT_FRAGMENT_TYPE = hasSymbol ? Symbol.for('react.fragment') : 0xeacb;
var REACT_STRICT_MODE_TYPE = hasSymbol ? Symbol.for('react.strict_mode') : 0xeacc;
var REACT_PROFILER_TYPE = hasSymbol ? Symbol.for('react.profiler') : 0xead2;
var REACT_PROVIDER_TYPE = hasSymbol ? Symbol.for('react.provider') : 0xeacd;
var REACT_CONTEXT_TYPE = hasSymbol ? Symbol.for('react.context') : 0xeace; // TODO: We don't use AsyncMode or ConcurrentMode anymore. They were temporary
// (unstable) APIs that have been removed. Can we remove the symbols?
var REACT_ASYNC_MODE_TYPE = hasSymbol ? Symbol.for('react.async_mode') : 0xeacf;
var REACT_CONCURRENT_MODE_TYPE = hasSymbol ? Symbol.for('react.concurrent_mode') : 0xeacf;
var REACT_FORWARD_REF_TYPE = hasSymbol ? Symbol.for('react.forward_ref') : 0xead0;
var REACT_SUSPENSE_TYPE = hasSymbol ? Symbol.for('react.suspense') : 0xead1;
var REACT_SUSPENSE_LIST_TYPE = hasSymbol ? Symbol.for('react.suspense_list') : 0xead8;
var REACT_MEMO_TYPE = hasSymbol ? Symbol.for('react.memo') : 0xead3;
var REACT_LAZY_TYPE = hasSymbol ? Symbol.for('react.lazy') : 0xead4;
var REACT_FUNDAMENTAL_TYPE = hasSymbol ? Symbol.for('react.fundamental') : 0xead5;
var REACT_RESPONDER_TYPE = hasSymbol ? Symbol.for('react.responder') : 0xead6;
var REACT_SCOPE_TYPE = hasSymbol ? Symbol.for('react.scope') : 0xead7;
function isValidElementType(type) {
return typeof type === 'string' || typeof type === 'function' || // Note: its typeof might be other than 'symbol' or 'number' if it's a polyfill.
type === REACT_FRAGMENT_TYPE || type === REACT_CONCURRENT_MODE_TYPE || type === REACT_PROFILER_TYPE || type === REACT_STRICT_MODE_TYPE || type === REACT_SUSPENSE_TYPE || type === REACT_SUSPENSE_LIST_TYPE || typeof type === 'object' && type !== null && (type.$$typeof === REACT_LAZY_TYPE || type.$$typeof === REACT_MEMO_TYPE || type.$$typeof === REACT_PROVIDER_TYPE || type.$$typeof === REACT_CONTEXT_TYPE || type.$$typeof === REACT_FORWARD_REF_TYPE || type.$$typeof === REACT_FUNDAMENTAL_TYPE || type.$$typeof === REACT_RESPONDER_TYPE || type.$$typeof === REACT_SCOPE_TYPE);
}
/**
* Forked from fbjs/warning:
* https://github.com/facebook/fbjs/blob/e66ba20ad5be433eb54423f2b097d829324d9de6/packages/fbjs/src/__forks__/warning.js
*
* Only change is we use console.warn instead of console.error,
* and do nothing when 'console' is not supported.
* This really simplifies the code.
* ---
* Similar to invariant but only logs a warning if the condition is not met.
* This can be used to log issues in development environments in critical
* paths. Removing the logging code for production environments will keep the
* same logic and follow the same code paths.
*/
var lowPriorityWarningWithoutStack = function () {};
{
var printWarning = function (format) {
for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
args[_key - 1] = arguments[_key];
}
var argIndex = 0;
var message = 'Warning: ' + format.replace(/%s/g, function () {
return args[argIndex++];
});
if (typeof console !== 'undefined') {
console.warn(message);
}
try {
// --- Welcome to debugging React ---
// This error was thrown as a convenience so that you can use this stack
// to find the callsite that caused this warning to fire.
throw new Error(message);
} catch (x) {}
};
lowPriorityWarningWithoutStack = function (condition, format) {
if (format === undefined) {
throw new Error('`lowPriorityWarningWithoutStack(condition, format, ...args)` requires a warning ' + 'message argument');
}
if (!condition) {
for (var _len2 = arguments.length, args = new Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) {
args[_key2 - 2] = arguments[_key2];
}
printWarning.apply(void 0, [format].concat(args));
}
};
}
var lowPriorityWarningWithoutStack$1 = lowPriorityWarningWithoutStack;
function typeOf(object) {
if (typeof object === 'object' && object !== null) {
var $$typeof = object.$$typeof;
switch ($$typeof) {
case REACT_ELEMENT_TYPE:
var type = object.type;
switch (type) {
case REACT_ASYNC_MODE_TYPE:
case REACT_CONCURRENT_MODE_TYPE:
case REACT_FRAGMENT_TYPE:
case REACT_PROFILER_TYPE:
case REACT_STRICT_MODE_TYPE:
case REACT_SUSPENSE_TYPE:
return type;
default:
var $$typeofType = type && type.$$typeof;
switch ($$typeofType) {
case REACT_CONTEXT_TYPE:
case REACT_FORWARD_REF_TYPE:
case REACT_LAZY_TYPE:
case REACT_MEMO_TYPE:
case REACT_PROVIDER_TYPE:
return $$typeofType;
default:
return $$typeof;
}
}
case REACT_PORTAL_TYPE:
return $$typeof;
}
}
return undefined;
} // AsyncMode is deprecated along with isAsyncMode
var AsyncMode = REACT_ASYNC_MODE_TYPE;
var ConcurrentMode = REACT_CONCURRENT_MODE_TYPE;
var ContextConsumer = REACT_CONTEXT_TYPE;
var ContextProvider = REACT_PROVIDER_TYPE;
var Element = REACT_ELEMENT_TYPE;
var ForwardRef = REACT_FORWARD_REF_TYPE;
var Fragment = REACT_FRAGMENT_TYPE;
var Lazy = REACT_LAZY_TYPE;
var Memo = REACT_MEMO_TYPE;
var Portal = REACT_PORTAL_TYPE;
var Profiler = REACT_PROFILER_TYPE;
var StrictMode = REACT_STRICT_MODE_TYPE;
var Suspense = REACT_SUSPENSE_TYPE;
var hasWarnedAboutDeprecatedIsAsyncMode = false; // AsyncMode should be deprecated
function isAsyncMode(object) {
{
if (!hasWarnedAboutDeprecatedIsAsyncMode) {
hasWarnedAboutDeprecatedIsAsyncMode = true;
lowPriorityWarningWithoutStack$1(false, 'The ReactIs.isAsyncMode() alias has been deprecated, ' + 'and will be removed in React 17+. Update your code to use ' + 'ReactIs.isConcurrentMode() instead. It has the exact same API.');
}
}
return isConcurrentMode(object) || typeOf(object) === REACT_ASYNC_MODE_TYPE;
}
function isConcurrentMode(object) {
return typeOf(object) === REACT_CONCURRENT_MODE_TYPE;
}
function isContextConsumer(object) {
return typeOf(object) === REACT_CONTEXT_TYPE;
}
function isContextProvider(object) {
return typeOf(object) === REACT_PROVIDER_TYPE;
}
function isElement(object) {
return typeof object === 'object' && object !== null && object.$$typeof === REACT_ELEMENT_TYPE;
}
function isForwardRef(object) {
return typeOf(object) === REACT_FORWARD_REF_TYPE;
}
function isFragment(object) {
return typeOf(object) === REACT_FRAGMENT_TYPE;
}
function isLazy(object) {
return typeOf(object) === REACT_LAZY_TYPE;
}
function isMemo(object) {
return typeOf(object) === REACT_MEMO_TYPE;
}
function isPortal(object) {
return typeOf(object) === REACT_PORTAL_TYPE;
}
function isProfiler(object) {
return typeOf(object) === REACT_PROFILER_TYPE;
}
function isStrictMode(object) {
return typeOf(object) === REACT_STRICT_MODE_TYPE;
}
function isSuspense(object) {
return typeOf(object) === REACT_SUSPENSE_TYPE;
}
exports.typeOf = typeOf;
exports.AsyncMode = AsyncMode;
exports.ConcurrentMode = ConcurrentMode;
exports.ContextConsumer = ContextConsumer;
exports.ContextProvider = ContextProvider;
exports.Element = Element;
exports.ForwardRef = ForwardRef;
exports.Fragment = Fragment;
exports.Lazy = Lazy;
exports.Memo = Memo;
exports.Portal = Portal;
exports.Profiler = Profiler;
exports.StrictMode = StrictMode;
exports.Suspense = Suspense;
exports.isValidElementType = isValidElementType;
exports.isAsyncMode = isAsyncMode;
exports.isConcurrentMode = isConcurrentMode;
exports.isContextConsumer = isContextConsumer;
exports.isContextProvider = isContextProvider;
exports.isElement = isElement;
exports.isForwardRef = isForwardRef;
exports.isFragment = isFragment;
exports.isLazy = isLazy;
exports.isMemo = isMemo;
exports.isPortal = isPortal;
exports.isProfiler = isProfiler;
exports.isStrictMode = isStrictMode;
exports.isSuspense = isSuspense;
})();
}
});
unwrapExports(reactIs_development);
var reactIs_development_1 = reactIs_development.typeOf;
var reactIs_development_2 = reactIs_development.AsyncMode;
var reactIs_development_3 = reactIs_development.ConcurrentMode;
var reactIs_development_4 = reactIs_development.ContextConsumer;
var reactIs_development_5 = reactIs_development.ContextProvider;
var reactIs_development_6 = reactIs_development.Element;
var reactIs_development_7 = reactIs_development.ForwardRef;
var reactIs_development_8 = reactIs_development.Fragment;
var reactIs_development_9 = reactIs_development.Lazy;
var reactIs_development_10 = reactIs_development.Memo;
var reactIs_development_11 = reactIs_development.Portal;
var reactIs_development_12 = reactIs_development.Profiler;
var reactIs_development_13 = reactIs_development.StrictMode;
var reactIs_development_14 = reactIs_development.Suspense;
var reactIs_development_15 = reactIs_development.isValidElementType;
var reactIs_development_16 = reactIs_development.isAsyncMode;
var reactIs_development_17 = reactIs_development.isConcurrentMode;
var reactIs_development_18 = reactIs_development.isContextConsumer;
var reactIs_development_19 = reactIs_development.isContextProvider;
var reactIs_development_20 = reactIs_development.isElement;
var reactIs_development_21 = reactIs_development.isForwardRef;
var reactIs_development_22 = reactIs_development.isFragment;
var reactIs_development_23 = reactIs_development.isLazy;
var reactIs_development_24 = reactIs_development.isMemo;
var reactIs_development_25 = reactIs_development.isPortal;
var reactIs_development_26 = reactIs_development.isProfiler;
var reactIs_development_27 = reactIs_development.isStrictMode;
var reactIs_development_28 = reactIs_development.isSuspense;
var reactIs = createCommonjsModule(function (module) {
if ("development" === 'production') {
module.exports = reactIs_production_min;
} else {
module.exports = reactIs_development;
}
});
/**
* Copyright 2015, Yahoo! Inc.
* Copyrights licensed under the New BSD License. See the accompanying LICENSE file for terms.
*/
var REACT_STATICS = {
childContextTypes: true,
contextType: true,
contextTypes: true,
defaultProps: true,
displayName: true,
getDefaultProps: true,
getDerivedStateFromError: true,
getDerivedStateFromProps: true,
mixins: true,
propTypes: true,
type: true
};
var KNOWN_STATICS = {
name: true,
length: true,
prototype: true,
caller: true,
callee: true,
arguments: true,
arity: true
};
var FORWARD_REF_STATICS = {
'$$typeof': true,
render: true,
defaultProps: true,
displayName: true,
propTypes: true
};
var MEMO_STATICS = {
'$$typeof': true,
compare: true,
defaultProps: true,
displayName: true,
propTypes: true,
type: true
};
var TYPE_STATICS = {};
TYPE_STATICS[reactIs.ForwardRef] = FORWARD_REF_STATICS;
function getStatics(component) {
if (reactIs.isMemo(component)) {
return MEMO_STATICS;
}
return TYPE_STATICS[component['$$typeof']] || REACT_STATICS;
}
var defineProperty = Object.defineProperty;
var getOwnPropertyNames = Object.getOwnPropertyNames;
var getOwnPropertySymbols = Object.getOwnPropertySymbols;
var getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
var getPrototypeOf = Object.getPrototypeOf;
var objectPrototype = Object.prototype;
function hoistNonReactStatics(targetComponent, sourceComponent, blacklist) {
if (typeof sourceComponent !== 'string') {
// don't hoist over string (html) components
if (objectPrototype) {
var inheritedComponent = getPrototypeOf(sourceComponent);
if (inheritedComponent && inheritedComponent !== objectPrototype) {
hoistNonReactStatics(targetComponent, inheritedComponent, blacklist);
}
}
var keys = getOwnPropertyNames(sourceComponent);
if (getOwnPropertySymbols) {
keys = keys.concat(getOwnPropertySymbols(sourceComponent));
}
var targetStatics = getStatics(targetComponent);
var sourceStatics = getStatics(sourceComponent);
for (var i = 0; i < keys.length; ++i) {
var key = keys[i];
if (!KNOWN_STATICS[key] && !(blacklist && blacklist[key]) && !(sourceStatics && sourceStatics[key]) && !(targetStatics && targetStatics[key])) {
var descriptor = getOwnPropertyDescriptor(sourceComponent, key);
try {
// Avoid failures from read-only properties
defineProperty(targetComponent, key, descriptor);
} catch (e) {}
}
}
}
return targetComponent;
}
var hoistNonReactStatics_cjs = hoistNonReactStatics;
function _classCallCheck$7(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties$7(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
function _createClass$7(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties$7(Constructor.prototype, protoProps); if (staticProps) _defineProperties$7(Constructor, staticProps); return Constructor; }
/**
* Provides a set of static methods for creating Disposables.
* @param {Function} action Action to run during the first call to dispose.
* The action is guaranteed to be run at most once.
*/
var Disposable =
/*#__PURE__*/
function () {
function Disposable(action) {
_classCallCheck$7(this, Disposable);
this.isDisposed = false;
this.action = isFunction(action) ? action : noop;
}
/**
* Validates whether the given object is a disposable
* @param {Object} Object to test whether it has a dispose method
* @returns {Boolean} true if a disposable object, else false.
*/
_createClass$7(Disposable, [{
key: "dispose",
/** Performs the task of cleaning up resources. */
value: function dispose() {
if (!this.isDisposed) {
this.action();
this.isDisposed = true;
}
}
}], [{
key: "isDisposable",
value: function isDisposable(d) {
return d && isFunction(d.dispose);
}
}, {
key: "_fixup",
value: function _fixup(result) {
return Disposable.isDisposable(result) ? result : Disposable.empty;
}
/**
* Creates a disposable object that invokes the specified action when disposed.
* @param {Function} dispose Action to run during the first call to dispose.
* The action is guaranteed to be run at most once.
* @return {Disposable} The disposable object that runs the given action upon disposal.
*/
}, {
key: "create",
value: function create(action) {
return new Disposable(action);
}
}]);
return Disposable;
}();
/**
* Gets the disposable that does nothing when disposed.
*/
Disposable.empty = {
dispose: noop
};
/**
* Represents a group of disposable resources that are disposed together.
* @constructor
*/
var CompositeDisposable =
/*#__PURE__*/
function () {
function CompositeDisposable() {
_classCallCheck$7(this, CompositeDisposable);
this.isDisposed = false;
for (var _len = arguments.length, disposables = new Array(_len), _key = 0; _key < _len; _key++) {
disposables[_key] = arguments[_key];
}
this.disposables = disposables;
}
/**
* Adds a disposable to the CompositeDisposable or disposes the disposable if the CompositeDisposable is disposed.
* @param {Any} item Disposable to add.
*/
_createClass$7(CompositeDisposable, [{
key: "add",
value: function add(item) {
if (this.isDisposed) {
item.dispose();
} else {
this.disposables.push(item);
}
}
/**
* Removes and disposes the first occurrence of a disposable from the CompositeDisposable.
* @param {Any} item Disposable to remove.
* @returns {Boolean} true if found; false otherwise.
*/
}, {
key: "remove",
value: function remove(item) {
var shouldDispose = false;
if (!this.isDisposed) {
var idx = this.disposables.indexOf(item);
if (idx !== -1) {
shouldDispose = true;
this.disposables.splice(idx, 1);
item.dispose();
}
}
return shouldDispose;
}
/**
* Disposes all disposables in the group and removes them from the group but
* does not dispose the CompositeDisposable.
*/
}, {
key: "clear",
value: function clear() {
if (!this.isDisposed) {
var len = this.disposables.length;
var currentDisposables = new Array(len);
for (var i = 0; i < len; i++) {
currentDisposables[i] = this.disposables[i];
}
this.disposables = [];
for (var _i = 0; _i < len; _i++) {
currentDisposables[_i].dispose();
}
}
}
/**
* Disposes all disposables in the group and removes them from the group.
*/
}, {
key: "dispose",
value: function dispose() {
if (!this.isDisposed) {
this.isDisposed = true;
var len = this.disposables.length;
var currentDisposables = new Array(len);
for (var i = 0; i < len; i++) {
currentDisposables[i] = this.disposables[i];
}
this.disposables = [];
for (var _i2 = 0; _i2 < len; _i2++) {
currentDisposables[_i2].dispose();
}
}
}
}]);
return CompositeDisposable;
}();
/**
* Represents a disposable resource whose underlying disposable resource can
* be replaced by another disposable resource, causing automatic disposal of
* the previous underlying disposable resource.
*/
var SerialDisposable =
/*#__PURE__*/
function () {
function SerialDisposable() {
_classCallCheck$7(this, SerialDisposable);
this.isDisposed = false;
}
/**
* Gets the underlying disposable.
* @returns {Any} the underlying disposable.
*/
_createClass$7(SerialDisposable, [{
key: "getDisposable",
value: function getDisposable() {
return this.current;
}
}, {
key: "setDisposable",
value: function setDisposable(value) {
var shouldDispose = this.isDisposed;
if (!shouldDispose) {
var old = this.current;
this.current = value;
if (old) {
old.dispose();
}
}
if (shouldDispose && value) {
value.dispose();
}
}
/** Performs the task of cleaning up resources. */
}, {
key: "dispose",
value: function dispose() {
if (!this.isDisposed) {
this.isDisposed = true;
var old = this.current;
this.current = undefined;
if (old) {
old.dispose();
}
}
}
}]);
return SerialDisposable;
}();
function _typeof$5(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof$5 = function _typeof(obj) { return typeof obj; }; } else { _typeof$5 = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof$5(obj); }
function _slicedToArray$9(arr, i) { return _arrayWithHoles$9(arr) || _iterableToArrayLimit$9(arr, i) || _nonIterableRest$9(); }
function _nonIterableRest$9() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }
function _iterableToArrayLimit$9(arr, i) { if (!(Symbol.iterator in Object(arr) || Object.prototype.toString.call(arr) === "[object Arguments]")) { return; } var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
function _arrayWithHoles$9(arr) { if (Array.isArray(arr)) return arr; }
function _classCallCheck$8(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties$8(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
function _createClass$8(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties$8(Constructor.prototype, protoProps); if (staticProps) _defineProperties$8(Constructor, staticProps); return Constructor; }
function _possibleConstructorReturn(self, call) { if (call && (_typeof$5(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
function decorateHandler(_ref) {
var DecoratedComponent = _ref.DecoratedComponent,
createHandler = _ref.createHandler,
createMonitor = _ref.createMonitor,
createConnector = _ref.createConnector,
registerHandler = _ref.registerHandler,
containerDisplayName = _ref.containerDisplayName,
getType = _ref.getType,
collect = _ref.collect,
options = _ref.options;
var _options$arePropsEqua = options.arePropsEqual,
arePropsEqual = _options$arePropsEqua === void 0 ? shallowEqual : _options$arePropsEqua;
var Decorated = DecoratedComponent;
var displayName = DecoratedComponent.displayName || DecoratedComponent.name || 'Component';
var DragDropContainer =
/*#__PURE__*/
function (_React$Component) {
_inherits(DragDropContainer, _React$Component);
function DragDropContainer(props) {
var _this;
_classCallCheck$8(this, DragDropContainer);
_this = _possibleConstructorReturn(this, _getPrototypeOf(DragDropContainer).call(this, props));
_this.decoratedRef = React.createRef();
_this.handleChange = function () {
var nextState = _this.getCurrentState();
if (!shallowEqual(nextState, _this.state)) {
_this.setState(nextState);
}
};
_this.disposable = new SerialDisposable();
_this.receiveProps(props);
_this.dispose();
return _this;
}
_createClass$8(DragDropContainer, [{
key: "getHandlerId",
value: function getHandlerId() {
return this.handlerId;
}
}, {
key: "getDecoratedComponentInstance",
value: function getDecoratedComponentInstance() {
invariant(this.decoratedRef.current, 'In order to access an instance of the decorated component, it must either be a class component or use React.forwardRef()');
return this.decoratedRef.current;
}
}, {
key: "shouldComponentUpdate",
value: function shouldComponentUpdate(nextProps, nextState) {
return !arePropsEqual(nextProps, this.props) || !shallowEqual(nextState, this.state);
}
}, {
key: "componentDidMount",
value: function componentDidMount() {
this.disposable = new SerialDisposable();
this.currentType = undefined;
this.receiveProps(this.props);
this.handleChange();
}
}, {
key: "componentDidUpdate",
value: function componentDidUpdate(prevProps) {
if (!arePropsEqual(this.props, prevProps)) {
this.receiveProps(this.props);
this.handleChange();
}
}
}, {
key: "componentWillUnmount",
value: function componentWillUnmount() {
this.dispose();
}
}, {
key: "receiveProps",
value: function receiveProps(props) {
if (!this.handler) {
return;
}
this.handler.receiveProps(props);
this.receiveType(getType(props));
}
}, {
key: "receiveType",
value: function receiveType(type) {
if (!this.handlerMonitor || !this.manager || !this.handlerConnector) {
return;
}
if (type === this.currentType) {
return;
}
this.currentType = type;
var _registerHandler = registerHandler(type, this.handler, this.manager),
_registerHandler2 = _slicedToArray$9(_registerHandler, 2),
handlerId = _registerHandler2[0],
unregister = _registerHandler2[1];
this.handlerId = handlerId;
this.handlerMonitor.receiveHandlerId(handlerId);
this.handlerConnector.receiveHandlerId(handlerId);
var globalMonitor = this.manager.getMonitor();
var unsubscribe = globalMonitor.subscribeToStateChange(this.handleChange, {
handlerIds: [handlerId]
});
this.disposable.setDisposable(new CompositeDisposable(new Disposable(unsubscribe), new Disposable(unregister)));
}
}, {
key: "dispose",
value: function dispose() {
this.disposable.dispose();
if (this.handlerConnector) {
this.handlerConnector.receiveHandlerId(null);
}
}
}, {
key: "getCurrentState",
value: function getCurrentState() {
if (!this.handlerConnector) {
return {};
}
var nextState = collect(this.handlerConnector.hooks, this.handlerMonitor, this.props);
if ("development" !== 'production') {
invariant(isPlainObject$1(nextState), 'Expected `collect` specified as the second argument to ' + '%s for %s to return a plain object of props to inject. ' + 'Instead, received %s.', containerDisplayName, displayName, nextState);
}
return nextState;
}
}, {
key: "render",
value: function render() {
var _this2 = this;
return React.createElement(DndContext.Consumer, null, function (_ref2) {
var dragDropManager = _ref2.dragDropManager;
_this2.receiveDragDropManager(dragDropManager);
if (typeof requestAnimationFrame !== 'undefined') {
requestAnimationFrame(function () {
return _this2.handlerConnector.reconnect();
});
}
return React.createElement(Decorated, Object.assign({}, _this2.props, _this2.getCurrentState(), {
// NOTE: if Decorated is a Function Component, decoratedRef will not be populated unless it's a refforwarding component.
ref: isRefable(Decorated) ? _this2.decoratedRef : null
}));
});
}
}, {
key: "receiveDragDropManager",
value: function receiveDragDropManager(dragDropManager) {
if (this.manager !== undefined) {
return;
}
invariant(dragDropManager !== undefined, 'Could not find the drag and drop manager in the context of %s. ' + 'Make sure to render a DndProvider component in your top-level component. ' + 'Read more: http://react-dnd.github.io/react-dnd/docs/troubleshooting#could-not-find-the-drag-and-drop-manager-in-the-context', displayName, displayName);
if (dragDropManager === undefined) {
return;
}
this.manager = dragDropManager;
this.handlerMonitor = createMonitor(dragDropManager);
this.handlerConnector = createConnector(dragDropManager.getBackend());
this.handler = createHandler(this.handlerMonitor, this.decoratedRef);
}
}]);
return DragDropContainer;
}(React.Component);
DragDropContainer.DecoratedComponent = DecoratedComponent;
DragDropContainer.displayName = "".concat(containerDisplayName, "(").concat(displayName, ")");
return hoistNonReactStatics_cjs(DragDropContainer, DecoratedComponent);
}
function _typeof$6(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof$6 = function _typeof(obj) { return typeof obj; }; } else { _typeof$6 = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof$6(obj); }
function isValidType(type, allowArray) {
return typeof type === 'string' || _typeof$6(type) === 'symbol' || !!allowArray && Array.isArray(type) && type.every(function (t) {
return isValidType(t, false);
});
}
function _classCallCheck$9(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties$9(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
function _createClass$9(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties$9(Constructor.prototype, protoProps); if (staticProps) _defineProperties$9(Constructor, staticProps); return Constructor; }
var ALLOWED_SPEC_METHODS = ['canDrag', 'beginDrag', 'isDragging', 'endDrag'];
var REQUIRED_SPEC_METHODS = ['beginDrag'];
var SourceImpl =
/*#__PURE__*/
function () {
function SourceImpl(spec, monitor, ref) {
var _this = this;
_classCallCheck$9(this, SourceImpl);
this.props = null;
this.beginDrag = function () {
if (!_this.props) {
return;
}
var item = _this.spec.beginDrag(_this.props, _this.monitor, _this.ref.current);
if ("development" !== 'production') {
invariant(isPlainObject$1(item), 'beginDrag() must return a plain object that represents the dragged item. ' + 'Instead received %s. ' + 'Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-source', item);
}
return item;
};
this.spec = spec;
this.monitor = monitor;
this.ref = ref;
}
_createClass$9(SourceImpl, [{
key: "receiveProps",
value: function receiveProps(props) {
this.props = props;
}
}, {
key: "canDrag",
value: function canDrag() {
if (!this.props) {
return false;
}
if (!this.spec.canDrag) {
return true;
}
return this.spec.canDrag(this.props, this.monitor);
}
}, {
key: "isDragging",
value: function isDragging(globalMonitor, sourceId) {
if (!this.props) {
return false;
}
if (!this.spec.isDragging) {
return sourceId === globalMonitor.getSourceId();
}
return this.spec.isDragging(this.props, this.monitor);
}
}, {
key: "endDrag",
value: function endDrag() {
if (!this.props) {
return;
}
if (!this.spec.endDrag) {
return;
}
this.spec.endDrag(this.props, this.monitor, getDecoratedComponent(this.ref));
}
}]);
return SourceImpl;
}();
function createSourceFactory(spec) {
Object.keys(spec).forEach(function (key) {
invariant(ALLOWED_SPEC_METHODS.indexOf(key) > -1, 'Expected the drag source specification to only have ' + 'some of the following keys: %s. ' + 'Instead received a specification with an unexpected "%s" key. ' + 'Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-source', ALLOWED_SPEC_METHODS.join(', '), key);
invariant(typeof spec[key] === 'function', 'Expected %s in the drag source specification to be a function. ' + 'Instead received a specification with %s: %s. ' + 'Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-source', key, key, spec[key]);
});
REQUIRED_SPEC_METHODS.forEach(function (key) {
invariant(typeof spec[key] === 'function', 'Expected %s in the drag source specification to be a function. ' + 'Instead received a specification with %s: %s. ' + 'Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-source', key, key, spec[key]);
});
return function createSource(monitor, ref) {
return new SourceImpl(spec, monitor, ref);
};
}
/**
* Decorates a component as a dragsource
* @param type The dragsource type
* @param spec The drag source specification
* @param collect The props collector function
* @param options DnD options
*/
function DragSource(type, spec, collect) {
var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
checkDecoratorArguments('DragSource', 'type, spec, collect[, options]', type, spec, collect, options);
var getType = type;
if (typeof type !== 'function') {
invariant(isValidType(type), 'Expected "type" provided as the first argument to DragSource to be ' + 'a string, or a function that returns a string given the current props. ' + 'Instead, received %s. ' + 'Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-source', type);
getType = function getType() {
return type;
};
}
invariant(isPlainObject$1(spec), 'Expected "spec" provided as the second argument to DragSource to be ' + 'a plain object. Instead, received %s. ' + 'Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-source', spec);
var createSource = createSourceFactory(spec);
invariant(typeof collect === 'function', 'Expected "collect" provided as the third argument to DragSource to be ' + 'a function that returns a plain object of props to inject. ' + 'Instead, received %s. ' + 'Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-source', collect);
invariant(isPlainObject$1(options), 'Expected "options" provided as the fourth argument to DragSource to be ' + 'a plain object when specified. ' + 'Instead, received %s. ' + 'Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-source', collect);
return function decorateSource(DecoratedComponent) {
return decorateHandler({
containerDisplayName: 'DragSource',
createHandler: createSource,
registerHandler: registerSource,
createConnector: function createConnector(backend) {
return new SourceConnector(backend);
},
createMonitor: function createMonitor(manager) {
return new DragSourceMonitorImpl(manager);
},
DecoratedComponent: DecoratedComponent,
getType: getType,
collect: collect,
options: options
});
};
}
function _classCallCheck$a(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties$a(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
function _createClass$a(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties$a(Constructor.prototype, protoProps); if (staticProps) _defineProperties$a(Constructor, staticProps); return Constructor; }
var ALLOWED_SPEC_METHODS$1 = ['canDrop', 'hover', 'drop'];
var TargetImpl =
/*#__PURE__*/
function () {
function TargetImpl(spec, monitor, ref) {
_classCallCheck$a(this, TargetImpl);
this.props = null;
this.spec = spec;
this.monitor = monitor;
this.ref = ref;
}
_createClass$a(TargetImpl, [{
key: "receiveProps",
value: function receiveProps(props) {
this.props = props;
}
}, {
key: "receiveMonitor",
value: function receiveMonitor(monitor) {
this.monitor = monitor;
}
}, {
key: "canDrop",
value: function canDrop() {
if (!this.spec.canDrop) {
return true;
}
return this.spec.canDrop(this.props, this.monitor);
}
}, {
key: "hover",
value: function hover() {
if (!this.spec.hover) {
return;
}
this.spec.hover(this.props, this.monitor, getDecoratedComponent(this.ref));
}
}, {
key: "drop",
value: function drop() {
if (!this.spec.drop) {
return undefined;
}
var dropResult = this.spec.drop(this.props, this.monitor, this.ref.current);
if ("development" !== 'production') {
invariant(typeof dropResult === 'undefined' || isPlainObject$1(dropResult), 'drop() must either return undefined, or an object that represents the drop result. ' + 'Instead received %s. ' + 'Read more: http://react-dnd.github.io/react-dnd/docs/api/drop-target', dropResult);
}
return dropResult;
}
}]);
return TargetImpl;
}();
function createTargetFactory(spec) {
Object.keys(spec).forEach(function (key) {
invariant(ALLOWED_SPEC_METHODS$1.indexOf(key) > -1, 'Expected the drop target specification to only have ' + 'some of the following keys: %s. ' + 'Instead received a specification with an unexpected "%s" key. ' + 'Read more: http://react-dnd.github.io/react-dnd/docs/api/drop-target', ALLOWED_SPEC_METHODS$1.join(', '), key);
invariant(typeof spec[key] === 'function', 'Expected %s in the drop target specification to be a function. ' + 'Instead received a specification with %s: %s. ' + 'Read more: http://react-dnd.github.io/react-dnd/docs/api/drop-target', key, key, spec[key]);
});
return function createTarget(monitor, ref) {
return new TargetImpl(spec, monitor, ref);
};
}
function DropTarget(type, spec, collect) {
var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
checkDecoratorArguments('DropTarget', 'type, spec, collect[, options]', type, spec, collect, options);
var getType = type;
if (typeof type !== 'function') {
invariant(isValidType(type, true), 'Expected "type" provided as the first argument to DropTarget to be ' + 'a string, an array of strings, or a function that returns either given ' + 'the current props. Instead, received %s. ' + 'Read more: http://react-dnd.github.io/react-dnd/docs/api/drop-target', type);
getType = function getType() {
return type;
};
}
invariant(isPlainObject$1(spec), 'Expected "spec" provided as the second argument to DropTarget to be ' + 'a plain object. Instead, received %s. ' + 'Read more: http://react-dnd.github.io/react-dnd/docs/api/drop-target', spec);
var createTarget = createTargetFactory(spec);
invariant(typeof collect === 'function', 'Expected "collect" provided as the third argument to DropTarget to be ' + 'a function that returns a plain object of props to inject. ' + 'Instead, received %s. ' + 'Read more: http://react-dnd.github.io/react-dnd/docs/api/drop-target', collect);
invariant(isPlainObject$1(options), 'Expected "options" provided as the fourth argument to DropTarget to be ' + 'a plain object when specified. ' + 'Instead, received %s. ' + 'Read more: http://react-dnd.github.io/react-dnd/docs/api/drop-target', collect);
return function decorateTarget(DecoratedComponent) {
return decorateHandler({
containerDisplayName: 'DropTarget',
createHandler: createTarget,
registerHandler: registerTarget,
createMonitor: function createMonitor(manager) {
return new DropTargetMonitorImpl(manager);
},
createConnector: function createConnector(backend) {
return new TargetConnector(backend);
},
DecoratedComponent: DecoratedComponent,
getType: getType,
collect: collect,
options: options
});
};
}
function _typeof$7(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof$7 = function _typeof(obj) { return typeof obj; }; } else { _typeof$7 = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof$7(obj); }
function _classCallCheck$b(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties$b(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
function _createClass$b(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties$b(Constructor.prototype, protoProps); if (staticProps) _defineProperties$b(Constructor, staticProps); return Constructor; }
function _possibleConstructorReturn$1(self, call) { if (call && (_typeof$7(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized$1(self); }
function _assertThisInitialized$1(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
function _getPrototypeOf$1(o) { _getPrototypeOf$1 = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf$1(o); }
function _inherits$1(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf$1(subClass, superClass); }
function _setPrototypeOf$1(o, p) { _setPrototypeOf$1 = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf$1(o, p); }
function DragLayer(collect) {
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
checkDecoratorArguments('DragLayer', 'collect[, options]', collect, options);
invariant(typeof collect === 'function', 'Expected "collect" provided as the first argument to DragLayer to be a function that collects props to inject into the component. ', 'Instead, received %s. Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-layer', collect);
invariant(isPlainObject$1(options), 'Expected "options" provided as the second argument to DragLayer to be a plain object when specified. ' + 'Instead, received %s. Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-layer', options);
return function decorateLayer(DecoratedComponent) {
var Decorated = DecoratedComponent;
var _options$arePropsEqua = options.arePropsEqual,
arePropsEqual = _options$arePropsEqua === void 0 ? shallowEqual : _options$arePropsEqua;
var displayName = Decorated.displayName || Decorated.name || 'Component';
var DragLayerContainer =
/*#__PURE__*/
function (_React$Component) {
_inherits$1(DragLayerContainer, _React$Component);
function DragLayerContainer() {
var _this;
_classCallCheck$b(this, DragLayerContainer);
_this = _possibleConstructorReturn$1(this, _getPrototypeOf$1(DragLayerContainer).apply(this, arguments));
_this.isCurrentlyMounted = false;
_this.ref = React.createRef();
_this.handleChange = function () {
if (!_this.isCurrentlyMounted) {
return;
}
var nextState = _this.getCurrentState();
if (!shallowEqual(nextState, _this.state)) {
_this.setState(nextState);
}
};
return _this;
}
_createClass$b(DragLayerContainer, [{
key: "getDecoratedComponentInstance",
value: function getDecoratedComponentInstance() {
invariant(this.ref.current, 'In order to access an instance of the decorated component, it must either be a class component or use React.forwardRef()');
return this.ref.current;
}
}, {
key: "shouldComponentUpdate",
value: function shouldComponentUpdate(nextProps, nextState) {
return !arePropsEqual(nextProps, this.props) || !shallowEqual(nextState, this.state);
}
}, {
key: "componentDidMount",
value: function componentDidMount() {
this.isCurrentlyMounted = true;
this.handleChange();
}
}, {
key: "componentWillUnmount",
value: function componentWillUnmount() {
this.isCurrentlyMounted = false;
if (this.unsubscribeFromOffsetChange) {
this.unsubscribeFromOffsetChange();
this.unsubscribeFromOffsetChange = undefined;
}
if (this.unsubscribeFromStateChange) {
this.unsubscribeFromStateChange();
this.unsubscribeFromStateChange = undefined;
}
}
}, {
key: "render",
value: function render() {
var _this2 = this;
return React.createElement(DndContext.Consumer, null, function (_ref) {
var dragDropManager = _ref.dragDropManager;
if (dragDropManager === undefined) {
return null;
}
_this2.receiveDragDropManager(dragDropManager); // Let componentDidMount fire to initialize the collected state
if (!_this2.isCurrentlyMounted) {
return null;
}
return React.createElement(Decorated, Object.assign({}, _this2.props, _this2.state, {
ref: isRefable(Decorated) ? _this2.ref : null
}));
});
}
}, {
key: "receiveDragDropManager",
value: function receiveDragDropManager(dragDropManager) {
if (this.manager !== undefined) {
return;
}
this.manager = dragDropManager;
invariant(_typeof$7(dragDropManager) === 'object', 'Could not find the drag and drop manager in the context of %s. ' + 'Make sure to render a DndProvider component in your top-level component. ' + 'Read more: http://react-dnd.github.io/react-dnd/docs/troubleshooting#could-not-find-the-drag-and-drop-manager-in-the-context', displayName, displayName);
var monitor = this.manager.getMonitor();
this.unsubscribeFromOffsetChange = monitor.subscribeToOffsetChange(this.handleChange);
this.unsubscribeFromStateChange = monitor.subscribeToStateChange(this.handleChange);
}
}, {
key: "getCurrentState",
value: function getCurrentState() {
if (!this.manager) {
return {};
}
var monitor = this.manager.getMonitor();
return collect(monitor, this.props);
}
}]);
return DragLayerContainer;
}(React.Component);
DragLayerContainer.displayName = "DragLayer(".concat(displayName, ")");
DragLayerContainer.DecoratedComponent = DecoratedComponent;
return hoistNonReactStatics_cjs(DragLayerContainer, DecoratedComponent);
};
}
exports.DndContext = DndContext;
exports.DndProvider = DndProvider;
exports.DragLayer = DragLayer;
exports.DragPreviewImage = DragPreviewImage;
exports.DragSource = DragSource;
exports.DropTarget = DropTarget;
exports.createDndContext = createDndContext;
exports.useDrag = useDrag;
exports.useDragLayer = useDragLayer;
exports.useDrop = useDrop;
Object.defineProperty(exports, '__esModule', { value: true });
})));
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