qtsd-fork/example/node_modules/dnd-core/lib/actions/dragDrop.js

Do not use this please

'use strict';

Object.defineProperty(exports, "__esModule", {
	value: true
});
exports.END_DRAG = exports.DROP = exports.HOVER = exports.PUBLISH_DRAG_SOURCE = exports.BEGIN_DRAG = undefined;

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

exports.beginDrag = beginDrag;
exports.publishDragSource = publishDragSource;
exports.hover = hover;
exports.drop = drop;
exports.endDrag = endDrag;

var _invariant = require('invariant');

var _invariant2 = _interopRequireDefault(_invariant);

var _isArray = require('lodash/isArray');

var _isArray2 = _interopRequireDefault(_isArray);

var _isObject = require('lodash/isObject');

var _isObject2 = _interopRequireDefault(_isObject);

var _matchesType = require('../utils/matchesType');

var _matchesType2 = _interopRequireDefault(_matchesType);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var BEGIN_DRAG = exports.BEGIN_DRAG = 'dnd-core/BEGIN_DRAG';
var PUBLISH_DRAG_SOURCE = exports.PUBLISH_DRAG_SOURCE = 'dnd-core/PUBLISH_DRAG_SOURCE';
var HOVER = exports.HOVER = 'dnd-core/HOVER';
var DROP = exports.DROP = 'dnd-core/DROP';
var END_DRAG = exports.END_DRAG = 'dnd-core/END_DRAG';

function beginDrag(sourceIds) {
	var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : { publishSource: true, clientOffset: null };
	var publishSource = options.publishSource,
	    clientOffset = options.clientOffset,
	    getSourceClientOffset = options.getSourceClientOffset;

	(0, _invariant2.default)((0, _isArray2.default)(sourceIds), 'Expected sourceIds to be an array.');

	var monitor = this.getMonitor();
	var registry = this.getRegistry();
	(0, _invariant2.default)(!monitor.isDragging(), 'Cannot call beginDrag while dragging.');

	for (var i = 0; i < sourceIds.length; i++) {
		(0, _invariant2.default)(registry.getSource(sourceIds[i]), 'Expected sourceIds to be registered.');
	}

	var sourceId = null;
	for (var _i = sourceIds.length - 1; _i >= 0; _i--) {
		if (monitor.canDragSource(sourceIds[_i])) {
			sourceId = sourceIds[_i];
			break;
		}
	}
	if (sourceId === null) {
		return;
	}

	var sourceClientOffset = null;
	if (clientOffset) {
		(0, _invariant2.default)(typeof getSourceClientOffset === 'function', 'When clientOffset is provided, getSourceClientOffset must be a function.');
		sourceClientOffset = getSourceClientOffset(sourceId);
	}

	var source = registry.getSource(sourceId);
	var item = source.beginDrag(monitor, sourceId);
	(0, _invariant2.default)((0, _isObject2.default)(item), 'Item must be an object.');

	registry.pinSource(sourceId);

	var itemType = registry.getSourceType(sourceId);
	return {
		type: BEGIN_DRAG,
		itemType: itemType,
		item: item,
		sourceId: sourceId,
		clientOffset: clientOffset,
		sourceClientOffset: sourceClientOffset,
		isSourcePublic: publishSource
	};
}

function publishDragSource() {
	var monitor = this.getMonitor();
	if (!monitor.isDragging()) {
		return;
	}

	return { type: PUBLISH_DRAG_SOURCE };
}

function hover(targetIdsArg) {
	var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
	    _ref$clientOffset = _ref.clientOffset,
	    clientOffset = _ref$clientOffset === undefined ? null : _ref$clientOffset;

	(0, _invariant2.default)((0, _isArray2.default)(targetIdsArg), 'Expected targetIds to be an array.');
	var targetIds = targetIdsArg.slice(0);

	var monitor = this.getMonitor();
	var registry = this.getRegistry();
	(0, _invariant2.default)(monitor.isDragging(), 'Cannot call hover while not dragging.');
	(0, _invariant2.default)(!monitor.didDrop(), 'Cannot call hover after drop.');

	// First check invariants.
	for (var i = 0; i < targetIds.length; i++) {
		var targetId = targetIds[i];
		(0, _invariant2.default)(targetIds.lastIndexOf(targetId) === i, 'Expected targetIds to be unique in the passed array.');

		var target = registry.getTarget(targetId);
		(0, _invariant2.default)(target, 'Expected targetIds to be registered.');
	}

	var draggedItemType = monitor.getItemType();

	// 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 _i2 = targetIds.length - 1; _i2 >= 0; _i2--) {
		var _targetId = targetIds[_i2];
		var targetType = registry.getTargetType(_targetId);
		if (!(0, _matchesType2.default)(targetType, draggedItemType)) {
			targetIds.splice(_i2, 1);
		}
	}

	// Finally call hover on all matching targets.
	for (var _i3 = 0; _i3 < targetIds.length; _i3++) {
		var _targetId2 = targetIds[_i3];
		var _target = registry.getTarget(_targetId2);
		_target.hover(monitor, _targetId2);
	}

	return {
		type: HOVER,
		targetIds: targetIds,
		clientOffset: clientOffset
	};
}

function drop() {
	var _this = this;

	var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

	var monitor = this.getMonitor();
	var registry = this.getRegistry();
	(0, _invariant2.default)(monitor.isDragging(), 'Cannot call drop while not dragging.');
	(0, _invariant2.default)(!monitor.didDrop(), 'Cannot call drop twice during one drag operation.');

	var targetIds = monitor.getTargetIds().filter(monitor.canDropOnTarget, monitor);

	targetIds.reverse();
	targetIds.forEach(function (targetId, index) {
		var target = registry.getTarget(targetId);

		var dropResult = target.drop(monitor, targetId);
		(0, _invariant2.default)(typeof dropResult === 'undefined' || (0, _isObject2.default)(dropResult), 'Drop result must either be an object or undefined.');
		if (typeof dropResult === 'undefined') {
			dropResult = index === 0 ? {} : monitor.getDropResult();
		}

		_this.store.dispatch({
			type: DROP,
			dropResult: _extends({}, options, dropResult)
		});
	});
}

function endDrag() {
	var monitor = this.getMonitor();
	var registry = this.getRegistry();
	(0, _invariant2.default)(monitor.isDragging(), 'Cannot call endDrag while not dragging.');

	var sourceId = monitor.getSourceId();
	var source = registry.getSource(sourceId, true);
	source.endDrag(monitor, sourceId);

	registry.unpinSource();

	return { type: END_DRAG };
}