/*
* HTML5Sortable package
* https://github.com/lukasoppermann/html5sortable
*
* Maintained by Lukas Oppermann
*
* Released under the MIT license.
*/
var sortable = (function () {
'use strict';
/**
* Get or set data on element
* @param {HTMLElement} element
* @param {string} key
* @param {any} value
* @return {*}
*/
function addData(element, key, value) {
if (value === undefined) {
return element && element.h5s && element.h5s.data && element.h5s.data[key];
}
else {
element.h5s = element.h5s || {};
element.h5s.data = element.h5s.data || {};
element.h5s.data[key] = value;
}
}
/**
* Remove data from element
* @param {HTMLElement} element
*/
function removeData(element) {
if (element.h5s) {
delete element.h5s.data;
}
}
/* eslint-env browser */
/**
* Filter only wanted nodes
* @param {NodeList|HTMLCollection|Array} nodes
* @param {String} selector
* @returns {Array}
*/
var _filter = (function (nodes, selector) {
if (!(nodes instanceof NodeList || nodes instanceof HTMLCollection || nodes instanceof Array)) {
throw new Error('You must provide a nodeList/HTMLCollection/Array of elements to be filtered.');
}
if (typeof selector !== 'string') {
return Array.from(nodes);
}
return Array.from(nodes).filter(function (item) { return item.nodeType === 1 && item.matches(selector); });
});
/* eslint-env browser */
var stores = new Map();
/**
* Stores data & configurations per Sortable
* @param {Object} config
*/
var Store = /** @class */ (function () {
function Store() {
this._config = new Map(); // eslint-disable-line no-undef
this._placeholder = undefined; // eslint-disable-line no-undef
this._data = new Map(); // eslint-disable-line no-undef
}
Object.defineProperty(Store.prototype, "config", {
/**
* get the configuration map of a class instance
* @method config
* @return {object}
*/
get: function () {
// transform Map to object
var config = {};
this._config.forEach(function (value, key) {
config[key] = value;
});
// return object
return config;
},
/**
* set the configuration of a class instance
* @method config
* @param {object} config object of configurations
*/
set: function (config) {
if (typeof config !== 'object') {
throw new Error('You must provide a valid configuration object to the config setter.');
}
// combine config with default
var mergedConfig = Object.assign({}, config);
// add config to map
this._config = new Map(Object.entries(mergedConfig));
},
enumerable: true,
configurable: true
});
/**
* set individual configuration of a class instance
* @method setConfig
* @param key valid configuration key
* @param value any value
* @return void
*/
Store.prototype.setConfig = function (key, value) {
if (!this._config.has(key)) {
throw new Error("Trying to set invalid configuration item: " + key);
}
// set config
this._config.set(key, value);
};
/**
* get an individual configuration of a class instance
* @method getConfig
* @param key valid configuration key
* @return any configuration value
*/
Store.prototype.getConfig = function (key) {
if (!this._config.has(key)) {
throw new Error("Invalid configuration item requested: " + key);
}
return this._config.get(key);
};
Object.defineProperty(Store.prototype, "placeholder", {
/**
* get the placeholder for a class instance
* @method placeholder
* @return {HTMLElement|null}
*/
get: function () {
return this._placeholder;
},
/**
* set the placeholder for a class instance
* @method placeholder
* @param {HTMLElement} placeholder
* @return {void}
*/
set: function (placeholder) {
if (!(placeholder instanceof HTMLElement) && placeholder !== null) {
throw new Error('A placeholder must be an html element or null.');
}
this._placeholder = placeholder;
},
enumerable: true,
configurable: true
});
/**
* set an data entry
* @method setData
* @param {string} key
* @param {any} value
* @return {void}
*/
Store.prototype.setData = function (key, value) {
if (typeof key !== 'string') {
throw new Error("The key must be a string.");
}
this._data.set(key, value);
};
/**
* get an data entry
* @method getData
* @param {string} key an existing key
* @return {any}
*/
Store.prototype.getData = function (key) {
if (typeof key !== 'string') {
throw new Error("The key must be a string.");
}
return this._data.get(key);
};
/**
* delete an data entry
* @method deleteData
* @param {string} key an existing key
* @return {boolean}
*/
Store.prototype.deleteData = function (key) {
if (typeof key !== 'string') {
throw new Error("The key must be a string.");
}
return this._data.delete(key);
};
return Store;
}());
/**
* @param {HTMLElement} sortableElement
* @returns {Class: Store}
*/
var store = (function (sortableElement) {
// if sortableElement is wrong type
if (!(sortableElement instanceof HTMLElement)) {
throw new Error('Please provide a sortable to the store function.');
}
// create new instance if not avilable
if (!stores.has(sortableElement)) {
stores.set(sortableElement, new Store());
}
// return instance
return stores.get(sortableElement);
});
/**
* @param {Array|HTMLElement} element
* @param {Function} callback
* @param {string} event
*/
function addEventListener(element, eventName, callback) {
if (element instanceof Array) {
for (var i = 0; i < element.length; ++i) {
addEventListener(element[i], eventName, callback);
}
return;
}
element.addEventListener(eventName, callback);
store(element).setData("event" + eventName, callback);
}
/**
* @param {Array|HTMLElement} element
* @param {string} eventName
*/
function removeEventListener(element, eventName) {
if (element instanceof Array) {
for (var i = 0; i < element.length; ++i) {
removeEventListener(element[i], eventName);
}
return;
}
element.removeEventListener(eventName, store(element).getData("event" + eventName));
store(element).deleteData("event" + eventName);
}
/**
* @param {Array|HTMLElement} element
* @param {string} attribute
* @param {string} value
*/
function addAttribute(element, attribute, value) {
if (element instanceof Array) {
for (var i = 0; i < element.length; ++i) {
addAttribute(element[i], attribute, value);
}
return;
}
element.setAttribute(attribute, value);
}
/**
* @param {Array|HTMLElement} element
* @param {string} attribute
*/
function removeAttribute(element, attribute) {
if (element instanceof Array) {
for (var i = 0; i < element.length; ++i) {
removeAttribute(element[i], attribute);
}
return;
}
element.removeAttribute(attribute);
}
/**
* @param {HTMLElement} element
* @returns {Object}
*/
var _offset = (function (element) {
if (!element.parentElement || element.getClientRects().length === 0) {
throw new Error('target element must be part of the dom');
}
var rect = element.getClientRects()[0];
return {
left: rect.left + window.pageXOffset,
right: rect.right + window.pageXOffset,
top: rect.top + window.pageYOffset,
bottom: rect.bottom + window.pageYOffset
};
});
/**
* Creates and returns a new debounced version of the passed function which will postpone its execution until after wait milliseconds have elapsed
* @param {Function} func to debounce
* @param {number} time to wait before calling function with latest arguments, 0 - no debounce
* @returns {function} - debounced function
*/
var _debounce = (function (func, wait) {
if (wait === void 0) { wait = 0; }
var timeout;
return function () {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
clearTimeout(timeout);
timeout = setTimeout(function () {
func.apply(void 0, args);
}, wait);
};
});
/* eslint-env browser */
/**
* Get position of the element relatively to its sibling elements
* @param {HTMLElement} element
* @returns {number}
*/
var _index = (function (element, elementList) {
if (!(element instanceof HTMLElement) || !(elementList instanceof NodeList || elementList instanceof HTMLCollection || elementList instanceof Array)) {
throw new Error('You must provide an element and a list of elements.');
}
return Array.from(elementList).indexOf(element);
});
/* eslint-env browser */
/**
* Test whether element is in DOM
* @param {HTMLElement} element
* @returns {boolean}
*/
var isInDom = (function (element) {
if (!(element instanceof HTMLElement)) {
throw new Error('Element is not a node element.');
}
return element.parentNode !== null;
});
/* eslint-env browser */
/**
* Insert node before or after target
* @param {HTMLElement} referenceNode - reference element
* @param {HTMLElement} newElement - element to be inserted
* @param {String} position - insert before or after reference element
*/
var insertNode = function (referenceNode, newElement, position) {
if (!(referenceNode instanceof HTMLElement) || !(referenceNode.parentElement instanceof HTMLElement)) {
throw new Error('target and element must be a node');
}
referenceNode.parentElement.insertBefore(newElement, (position === 'before' ? referenceNode : referenceNode.nextElementSibling));
};
/**
* Insert before target
* @param {HTMLElement} target
* @param {HTMLElement} element
*/
var insertBefore = function (target, element) { return insertNode(target, element, 'before'); };
/**
* Insert after target
* @param {HTMLElement} target
* @param {HTMLElement} element
*/
var insertAfter = function (target, element) { return insertNode(target, element, 'after'); };
/* eslint-env browser */
/**
* Filter only wanted nodes
* @param {HTMLElement} sortableContainer
* @param {Function} customSerializer
* @returns {Array}
*/
var _serialize = (function (sortableContainer, customItemSerializer, customContainerSerializer) {
if (customItemSerializer === void 0) { customItemSerializer = function (serializedItem, sortableContainer) { return serializedItem; }; }
if (customContainerSerializer === void 0) { customContainerSerializer = function (serializedContainer) { return serializedContainer; }; }
// check for valid sortableContainer
if (!(sortableContainer instanceof HTMLElement) || !sortableContainer.isSortable === true) {
throw new Error('You need to provide a sortableContainer to be serialized.');
}
// check for valid serializers
if (typeof customItemSerializer !== 'function' || typeof customContainerSerializer !== 'function') {
throw new Error('You need to provide a valid serializer for items and the container.');
}
// get options
var options = addData(sortableContainer, 'opts');
var item = options.items;
// serialize container
var items = _filter(sortableContainer.children, item);
var serializedItems = items.map(function (item) {
return {
parent: sortableContainer,
node: item,
html: item.outerHTML,
index: _index(item, items)
};
});
// serialize container
var container = {
node: sortableContainer,
itemCount: serializedItems.length
};
return {
container: customContainerSerializer(container),
items: serializedItems.map(function (item) { return customItemSerializer(item, sortableContainer); })
};
});
/* eslint-env browser */
/**
* create a placeholder element
* @param {HTMLElement} sortableElement a single sortable
* @param {string|undefined} placeholder a string representing an html element
* @param {string} placeholderClasses a string representing the classes that should be added to the placeholder
*/
var _makePlaceholder = (function (sortableElement, placeholder, placeholderClass) {
var _a;
if (placeholderClass === void 0) { placeholderClass = 'sortable-placeholder'; }
if (!(sortableElement instanceof HTMLElement)) {
throw new Error('You must provide a valid element as a sortable.');
}
// if placeholder is not an element
if (!(placeholder instanceof HTMLElement) && placeholder !== undefined) {
throw new Error('You must provide a valid element as a placeholder or set ot to undefined.');
}
// if no placeholder element is given
if (placeholder === undefined) {
if (['UL', 'OL'].includes(sortableElement.tagName)) {
placeholder = document.createElement('li');
}
else if (['TABLE', 'TBODY'].includes(sortableElement.tagName)) {
placeholder = document.createElement('tr');
// set colspan to always all rows, otherwise the item can only be dropped in first column
placeholder.innerHTML = ' | ';
}
else {
placeholder = document.createElement('div');
}
}
// add classes to placeholder
if (typeof placeholderClass === 'string') {
(_a = placeholder.classList).add.apply(_a, placeholderClass.split(' '));
}
return placeholder;
});
/* eslint-env browser */
/**
* Get height of an element including padding
* @param {HTMLElement} element an dom element
*/
var _getElementHeight = (function (element) {
if (!(element instanceof HTMLElement)) {
throw new Error('You must provide a valid dom element');
}
// get calculated style of element
var style = window.getComputedStyle(element);
// pick applicable properties, convert to int and reduce by adding
return ['height', 'padding-top', 'padding-bottom']
.map(function (key) {
var int = parseInt(style.getPropertyValue(key), 10);
return isNaN(int) ? 0 : int;
})
.reduce(function (sum, value) { return sum + value; });
});
/* eslint-env browser */
/**
* get handle or return item
* @param {Array} items
* @param {string} selector
*/
var _getHandles = (function (items, selector) {
if (!(items instanceof Array)) {
throw new Error('You must provide a Array of HTMLElements to be filtered.');
}
if (typeof selector !== 'string') {
return items;
}
return items
// remove items without handle from array
.filter(function (item) {
return item.querySelector(selector) instanceof HTMLElement ||
(item.shadowRoot && item.shadowRoot.querySelector(selector) instanceof HTMLElement);
})
// replace item with handle in array
.map(function (item) {
return item.querySelector(selector) || (item.shadowRoot && item.shadowRoot.querySelector(selector));
});
});
/**
* @param {Event} event
* @returns {HTMLElement}
*/
var getEventTarget = (function (event) {
return (event.composedPath && event.composedPath()[0]) || event.target;
});
/* eslint-env browser */
/**
* defaultDragImage returns the current item as dragged image
* @param {HTMLElement} draggedElement - the item that the user drags
* @param {object} elementOffset - an object with the offsets top, left, right & bottom
* @param {Event} event - the original drag event object
* @return {object} with element, posX and posY properties
*/
var defaultDragImage = function (draggedElement, elementOffset, event) {
return {
element: draggedElement,
posX: event.pageX - elementOffset.left,
posY: event.pageY - elementOffset.top
};
};
/**
* attaches an element as the drag image to an event
* @param {Event} event - the original drag event object
* @param {HTMLElement} draggedElement - the item that the user drags
* @param {Function} customDragImage - function to create a custom dragImage
* @return void
*/
var setDragImage = (function (event, draggedElement, customDragImage) {
// check if event is provided
if (!(event instanceof Event)) {
throw new Error('setDragImage requires a DragEvent as the first argument.');
}
// check if draggedElement is provided
if (!(draggedElement instanceof HTMLElement)) {
throw new Error('setDragImage requires the dragged element as the second argument.');
}
// set default function of none provided
if (!customDragImage) {
customDragImage = defaultDragImage;
}
// check if setDragImage method is available
if (event.dataTransfer && event.dataTransfer.setDragImage) {
// get the elements offset
var elementOffset = _offset(draggedElement);
// get the dragImage
var dragImage = customDragImage(draggedElement, elementOffset, event);
// check if custom function returns correct values
if (!(dragImage.element instanceof HTMLElement) || typeof dragImage.posX !== 'number' || typeof dragImage.posY !== 'number') {
throw new Error('The customDragImage function you provided must return and object with the properties element[string], posX[integer], posY[integer].');
}
// needs to be set for HTML5 drag & drop to work
event.dataTransfer.effectAllowed = 'copyMove';
// Firefox requires it to use the event target's id for the data
event.dataTransfer.setData('text/plain', getEventTarget(event).id);
// set the drag image on the event
event.dataTransfer.setDragImage(dragImage.element, dragImage.posX, dragImage.posY);
}
});
/**
* Check if curList accepts items from destList
* @param {sortable} destination the container an item is move to
* @param {sortable} origin the container an item comes from
*/
var _listsConnected = (function (destination, origin) {
// check if valid sortable
if (destination.isSortable === true) {
var acceptFrom = store(destination).getConfig('acceptFrom');
// check if acceptFrom is valid
if (acceptFrom !== null && acceptFrom !== false && typeof acceptFrom !== 'string') {
throw new Error('HTML5Sortable: Wrong argument, "acceptFrom" must be "null", "false", or a valid selector string.');
}
if (acceptFrom !== null) {
return acceptFrom !== false && acceptFrom.split(',').filter(function (sel) {
return sel.length > 0 && origin.matches(sel);
}).length > 0;
}
// drop in same list
if (destination === origin) {
return true;
}
// check if lists are connected with connectWith
if (store(destination).getConfig('connectWith') !== undefined && store(destination).getConfig('connectWith') !== null) {
return store(destination).getConfig('connectWith') === store(origin).getConfig('connectWith');
}
}
return false;
});
/**
* default configurations
*/
var defaultConfiguration = {
items: null,
// deprecated
connectWith: null,
// deprecated
disableIEFix: null,
acceptFrom: null,
copy: false,
placeholder: null,
placeholderClass: 'sortable-placeholder',
draggingClass: 'sortable-dragging',
hoverClass: false,
debounce: 0,
throttleTime: 100,
maxItems: 0,
itemSerializer: undefined,
containerSerializer: undefined,
customDragImage: null
};
/**
* make sure a function is only called once within the given amount of time
* @param {Function} fn the function to throttle
* @param {number} threshold time limit for throttling
*/
// must use function to keep this context
function _throttle (fn, threshold) {
var _this = this;
if (threshold === void 0) { threshold = 250; }
// check function
if (typeof fn !== 'function') {
throw new Error('You must provide a function as the first argument for throttle.');
}
// check threshold
if (typeof threshold !== 'number') {
throw new Error('You must provide a number as the second argument for throttle.');
}
var lastEventTimestamp = null;
return function () {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
var now = Date.now();
if (lastEventTimestamp === null || now - lastEventTimestamp >= threshold) {
lastEventTimestamp = now;
fn.apply(_this, args);
}
};
}
/* eslint-env browser */
/**
* enable or disable hoverClass on mouseenter/leave if container Items
* @param {sortable} sortableContainer a valid sortableContainer
* @param {boolean} enable enable or disable event
*/
// export default (sortableContainer: sortable, enable: boolean) => {
var enableHoverClass = (function (sortableContainer, enable) {
if (typeof store(sortableContainer).getConfig('hoverClass') === 'string') {
var hoverClasses_1 = store(sortableContainer).getConfig('hoverClass').split(' ');
// add class on hover
if (enable === true) {
addEventListener(sortableContainer, 'mousemove', _throttle(function (event) {
// check of no mouse button was pressed when mousemove started == no drag
if (event.buttons === 0) {
_filter(sortableContainer.children, store(sortableContainer).getConfig('items')).forEach(function (item) {
var _a, _b;
if (item !== event.target) {
(_a = item.classList).remove.apply(_a, hoverClasses_1);
}
else {
(_b = item.classList).add.apply(_b, hoverClasses_1);
}
});
}
}, store(sortableContainer).getConfig('throttleTime')));
// remove class on leave
addEventListener(sortableContainer, 'mouseleave', function () {
_filter(sortableContainer.children, store(sortableContainer).getConfig('items')).forEach(function (item) {
var _a;
(_a = item.classList).remove.apply(_a, hoverClasses_1);
});
});
// remove events
}
else {
removeEventListener(sortableContainer, 'mousemove');
removeEventListener(sortableContainer, 'mouseleave');
}
}
});
/* eslint-env browser */
/*
* variables global to the plugin
*/
var dragging;
var draggingHeight;
/*
* Keeps track of the initialy selected list, where 'dragstart' event was triggered
* It allows us to move the data in between individual Sortable List instances
*/
// Origin List - data from before any item was changed
var originContainer;
var originIndex;
var originElementIndex;
var originItemsBeforeUpdate;
// Previous Sortable Container - we dispatch as sortenter event when a
// dragged item enters a sortableContainer for the first time
var previousContainer;
// Destination List - data from before any item was changed
var destinationItemsBeforeUpdate;
/**
* remove event handlers from items
* @param {Array|NodeList} items
*/
var _removeItemEvents = function (items) {
removeEventListener(items, 'dragstart');
removeEventListener(items, 'dragend');
removeEventListener(items, 'dragover');
removeEventListener(items, 'dragenter');
removeEventListener(items, 'drop');
removeEventListener(items, 'mouseenter');
removeEventListener(items, 'mouseleave');
};
/**
* _getDragging returns the current element to drag or
* a copy of the element.
* Is Copy Active for sortable
* @param {HTMLElement} draggedItem - the item that the user drags
* @param {HTMLElement} sortable a single sortable
*/
var _getDragging = function (draggedItem, sortable) {
var ditem = draggedItem;
if (store(sortable).getConfig('copy') === true) {
ditem = draggedItem.cloneNode(true);
addAttribute(ditem, 'aria-copied', 'true');
draggedItem.parentElement.appendChild(ditem);
ditem.style.display = 'none';
ditem.oldDisplay = draggedItem.style.display;
}
return ditem;
};
/**
* Remove data from sortable
* @param {HTMLElement} sortable a single sortable
*/
var _removeSortableData = function (sortable) {
removeData(sortable);
removeAttribute(sortable, 'aria-dropeffect');
};
/**
* Remove data from items
* @param {Array|HTMLElement} items
*/
var _removeItemData = function (items) {
removeAttribute(items, 'aria-grabbed');
removeAttribute(items, 'aria-copied');
removeAttribute(items, 'draggable');
removeAttribute(items, 'role');
};
/**
* find sortable from element. travels up parent element until found or null.
* @param {HTMLElement} element a single sortable
* @param {Event} event - the current event. We need to pass it to be able to
* find Sortable whith shadowRoot (document fragment has no parent)
*/
function findSortable(element, event) {
if (event.composedPath) {
return event.composedPath().find(function (el) { return el.isSortable; });
}
while (element.isSortable !== true) {
element = element.parentElement;
}
return element;
}
/**
* Dragging event is on the sortable element. finds the top child that
* contains the element.
* @param {HTMLElement} sortableElement a single sortable
* @param {HTMLElement} element is that being dragged
*/
function findDragElement(sortableElement, element) {
var options = addData(sortableElement, 'opts');
var items = _filter(sortableElement.children, options.items);
var itemlist = items.filter(function (ele) {
return ele.contains(element) || (ele.shadowRoot && ele.shadowRoot.contains(element));
});
return itemlist.length > 0 ? itemlist[0] : element;
}
/**
* Destroy the sortable
* @param {HTMLElement} sortableElement a single sortable
*/
var _destroySortable = function (sortableElement) {
var opts = addData(sortableElement, 'opts') || {};
var items = _filter(sortableElement.children, opts.items);
var handles = _getHandles(items, opts.handle);
// remove event handlers & data from sortable
removeEventListener(sortableElement, 'dragover');
removeEventListener(sortableElement, 'dragenter');
removeEventListener(sortableElement, 'drop');
// remove event data from sortable
_removeSortableData(sortableElement);
// remove event handlers & data from items
removeEventListener(handles, 'mousedown');
_removeItemEvents(items);
_removeItemData(items);
};
/**
* Enable the sortable
* @param {HTMLElement} sortableElement a single sortable
*/
var _enableSortable = function (sortableElement) {
var opts = addData(sortableElement, 'opts');
var items = _filter(sortableElement.children, opts.items);
var handles = _getHandles(items, opts.handle);
addAttribute(sortableElement, 'aria-dropeffect', 'move');
addData(sortableElement, '_disabled', 'false');
addAttribute(handles, 'draggable', 'true');
// @todo: remove this fix
// IE FIX for ghost
// can be disabled as it has the side effect that other events
// (e.g. click) will be ignored
if (opts.disableIEFix === false) {
var spanEl = (document || window.document).createElement('span');
if (typeof spanEl.dragDrop === 'function') {
addEventListener(handles, 'mousedown', function () {
if (items.indexOf(this) !== -1) {
this.dragDrop();
}
else {
var parent = this.parentElement;
while (items.indexOf(parent) === -1) {
parent = parent.parentElement;
}
parent.dragDrop();
}
});
}
}
};
/**
* Disable the sortable
* @param {HTMLElement} sortableElement a single sortable
*/
var _disableSortable = function (sortableElement) {
var opts = addData(sortableElement, 'opts');
var items = _filter(sortableElement.children, opts.items);
var handles = _getHandles(items, opts.handle);
addAttribute(sortableElement, 'aria-dropeffect', 'none');
addData(sortableElement, '_disabled', 'true');
addAttribute(handles, 'draggable', 'false');
removeEventListener(handles, 'mousedown');
};
/**
* Reload the sortable
* @param {HTMLElement} sortableElement a single sortable
* @description events need to be removed to not be double bound
*/
var _reloadSortable = function (sortableElement) {
var opts = addData(sortableElement, 'opts');
var items = _filter(sortableElement.children, opts.items);
var handles = _getHandles(items, opts.handle);
addData(sortableElement, '_disabled', 'false');
// remove event handlers from items
_removeItemEvents(items);
removeEventListener(handles, 'mousedown');
// remove event handlers from sortable
removeEventListener(sortableElement, 'dragover');
removeEventListener(sortableElement, 'dragenter');
removeEventListener(sortableElement, 'drop');
};
/**
* Public sortable object
* @param {Array|NodeList} sortableElements
* @param {object|string} options|method
*/
function sortable(sortableElements, options) {
// get method string to see if a method is called
var method = String(options);
options = options || {};
// check if the user provided a selector instead of an element
if (typeof sortableElements === 'string') {
sortableElements = document.querySelectorAll(sortableElements);
}
// if the user provided an element, return it in an array to keep the return value consistant
if (sortableElements instanceof HTMLElement) {
sortableElements = [sortableElements];
}
sortableElements = Array.prototype.slice.call(sortableElements);
if (/serialize/.test(method)) {
return sortableElements.map(function (sortableContainer) {
var opts = addData(sortableContainer, 'opts');
return _serialize(sortableContainer, opts.itemSerializer, opts.containerSerializer);
});
}
sortableElements.forEach(function (sortableElement) {
if (/enable|disable|destroy/.test(method)) {
return sortable[method](sortableElement);
}
// log deprecation
['connectWith', 'disableIEFix'].forEach(function (configKey) {
if (options.hasOwnProperty(configKey) && options[configKey] !== null) {
console.warn("HTML5Sortable: You are using the deprecated configuration \"" + configKey + "\". This will be removed in an upcoming version, make sure to migrate to the new options when updating.");
}
});
// merge options with default options
options = Object.assign({}, defaultConfiguration, store(sortableElement).config, options);
// init data store for sortable
store(sortableElement).config = options;
// set options on sortable
addData(sortableElement, 'opts', options);
// property to define as sortable
sortableElement.isSortable = true;
// reset sortable
_reloadSortable(sortableElement);
// initialize
var listItems = _filter(sortableElement.children, options.items);
// create element if user defined a placeholder element as a string
var customPlaceholder;
if (options.placeholder !== null && options.placeholder !== undefined) {
var tempContainer = document.createElement(sortableElement.tagName);
if (options.placeholder instanceof HTMLElement) {
tempContainer.appendChild(options.placeholder);
}
else {
tempContainer.innerHTML = options.placeholder;
}
customPlaceholder = tempContainer.children[0];
}
// add placeholder
store(sortableElement).placeholder = _makePlaceholder(sortableElement, customPlaceholder, options.placeholderClass);
addData(sortableElement, 'items', options.items);
if (options.acceptFrom) {
addData(sortableElement, 'acceptFrom', options.acceptFrom);
}
else if (options.connectWith) {
addData(sortableElement, 'connectWith', options.connectWith);
}
_enableSortable(sortableElement);
addAttribute(listItems, 'role', 'option');
addAttribute(listItems, 'aria-grabbed', 'false');
// enable hover class
enableHoverClass(sortableElement, true);
/*
Handle drag events on draggable items
Handle is set at the sortableElement level as it will bubble up
from the item
*/
addEventListener(sortableElement, 'dragstart', function (e) {
// ignore dragstart events
var target = getEventTarget(e);
if (target.isSortable === true) {
return;
}
e.stopImmediatePropagation();
if ((options.handle && !target.matches(options.handle)) || target.getAttribute('draggable') === 'false') {
return;
}
var sortableContainer = findSortable(target, e);
var dragItem = findDragElement(sortableContainer, target);
// grab values
originItemsBeforeUpdate = _filter(sortableContainer.children, options.items);
originIndex = originItemsBeforeUpdate.indexOf(dragItem);
originElementIndex = _index(dragItem, sortableContainer.children);
originContainer = sortableContainer;
// add transparent clone or other ghost to cursor
setDragImage(e, dragItem, options.customDragImage);
// cache selsection & add attr for dragging
draggingHeight = _getElementHeight(dragItem);
dragItem.classList.add(options.draggingClass);
dragging = _getDragging(dragItem, sortableContainer);
addAttribute(dragging, 'aria-grabbed', 'true');
// dispatch sortstart event on each element in group
sortableContainer.dispatchEvent(new CustomEvent('sortstart', {
detail: {
origin: {
elementIndex: originElementIndex,
index: originIndex,
container: originContainer
},
item: dragging,
originalTarget: target
}
}));
});
/*
We are capturing targetSortable before modifications with 'dragenter' event
*/
addEventListener(sortableElement, 'dragenter', function (e) {
var target = getEventTarget(e);
var sortableContainer = findSortable(target, e);
if (sortableContainer && sortableContainer !== previousContainer) {
destinationItemsBeforeUpdate = _filter(sortableContainer.children, addData(sortableContainer, 'items'))
.filter(function (item) { return item !== store(sortableElement).placeholder; });
sortableContainer.dispatchEvent(new CustomEvent('sortenter', {
detail: {
origin: {
elementIndex: originElementIndex,
index: originIndex,
container: originContainer
},
destination: {
container: sortableContainer,
itemsBeforeUpdate: destinationItemsBeforeUpdate
},
item: dragging,
originalTarget: target
}
}));
}
previousContainer = sortableContainer;
});
/*
* Dragend Event - https://developer.mozilla.org/en-US/docs/Web/Events/dragend
* Fires each time dragEvent end, or ESC pressed
* We are using it to clean up any draggable elements and placeholders
*/
addEventListener(sortableElement, 'dragend', function (e) {
if (!dragging) {
return;
}
dragging.classList.remove(options.draggingClass);
addAttribute(dragging, 'aria-grabbed', 'false');
if (dragging.getAttribute('aria-copied') === 'true' && addData(dragging, 'dropped') !== 'true') {
dragging.remove();
}
dragging.style.display = dragging.oldDisplay;
delete dragging.oldDisplay;
var visiblePlaceholder = Array.from(stores.values()).map(function (data) { return data.placeholder; })
.filter(function (placeholder) { return placeholder instanceof HTMLElement; })
.filter(isInDom)[0];
if (visiblePlaceholder) {
visiblePlaceholder.remove();
}
// dispatch sortstart event on each element in group
sortableElement.dispatchEvent(new CustomEvent('sortstop', {
detail: {
origin: {
elementIndex: originElementIndex,
index: originIndex,
container: originContainer
},
item: dragging
}
}));
previousContainer = null;
dragging = null;
draggingHeight = null;
});
/*
* Drop Event - https://developer.mozilla.org/en-US/docs/Web/Events/drop
* Fires when valid drop target area is hit
*/
addEventListener(sortableElement, 'drop', function (e) {
if (!_listsConnected(sortableElement, dragging.parentElement)) {
return;
}
e.preventDefault();
e.stopPropagation();
addData(dragging, 'dropped', 'true');
// get the one placeholder that is currently visible
var visiblePlaceholder = Array.from(stores.values()).map(function (data) {
return data.placeholder;
})
// filter only HTMLElements
.filter(function (placeholder) { return placeholder instanceof HTMLElement; })
// filter only elements in DOM
.filter(isInDom)[0];
// attach element after placeholder
insertAfter(visiblePlaceholder, dragging);
// remove placeholder from dom
visiblePlaceholder.remove();
/*
* Fires Custom Event - 'sortstop'
*/
sortableElement.dispatchEvent(new CustomEvent('sortstop', {
detail: {
origin: {
elementIndex: originElementIndex,
index: originIndex,
container: originContainer
},
item: dragging
}
}));
var placeholder = store(sortableElement).placeholder;
var originItems = _filter(originContainer.children, options.items)
.filter(function (item) { return item !== placeholder; });
var destinationContainer = this.isSortable === true ? this : this.parentElement;
var destinationItems = _filter(destinationContainer.children, addData(destinationContainer, 'items'))
.filter(function (item) { return item !== placeholder; });
var destinationElementIndex = _index(dragging, Array.from(dragging.parentElement.children)
.filter(function (item) { return item !== placeholder; }));
var destinationIndex = _index(dragging, destinationItems);
/*
* When a list item changed container lists or index within a list
* Fires Custom Event - 'sortupdate'
*/
if (originElementIndex !== destinationElementIndex || originContainer !== destinationContainer) {
sortableElement.dispatchEvent(new CustomEvent('sortupdate', {
detail: {
origin: {
elementIndex: originElementIndex,
index: originIndex,
container: originContainer,
itemsBeforeUpdate: originItemsBeforeUpdate,
items: originItems
},
destination: {
index: destinationIndex,
elementIndex: destinationElementIndex,
container: destinationContainer,
itemsBeforeUpdate: destinationItemsBeforeUpdate,
items: destinationItems
},
item: dragging
}
}));
}
});
var debouncedDragOverEnter = _debounce(function (sortableElement, element, pageY) {
if (!dragging) {
return;
}
// set placeholder height if forcePlaceholderSize option is set
if (options.forcePlaceholderSize) {
store(sortableElement).placeholder.style.height = draggingHeight + 'px';
}
// if element the draggedItem is dragged onto is within the array of all elements in list
// (not only items, but also disabled, etc.)
if (Array.from(sortableElement.children).indexOf(element) > -1) {
var thisHeight = _getElementHeight(element);
var placeholderIndex = _index(store(sortableElement).placeholder, element.parentElement.children);
var thisIndex = _index(element, element.parentElement.children);
// Check if `element` is bigger than the draggable. If it is, we have to define a dead zone to prevent flickering
if (thisHeight > draggingHeight) {
// Dead zone?
var deadZone = thisHeight - draggingHeight;
var offsetTop = _offset(element).top;
if (placeholderIndex < thisIndex && pageY < offsetTop) {
return;
}
if (placeholderIndex > thisIndex &&
pageY > offsetTop + thisHeight - deadZone) {
return;
}
}
if (dragging.oldDisplay === undefined) {
dragging.oldDisplay = dragging.style.display;
}
if (dragging.style.display !== 'none') {
dragging.style.display = 'none';
}
// To avoid flicker, determine where to position the placeholder
// based on where the mouse pointer is relative to the elements
// vertical center.
var placeAfter = false;
try {
var elementMiddle = _offset(element).top + element.offsetHeight / 2;
placeAfter = pageY >= elementMiddle;
}
catch (e) {
placeAfter = placeholderIndex < thisIndex;
}
if (placeAfter) {
insertAfter(element, store(sortableElement).placeholder);
}
else {
insertBefore(element, store(sortableElement).placeholder);
}
// get placeholders from all stores & remove all but current one
Array.from(stores.values())
// remove empty values
.filter(function (data) { return data.placeholder !== undefined; })
// foreach placeholder in array if outside of current sorableContainer -> remove from DOM
.forEach(function (data) {
if (data.placeholder !== store(sortableElement).placeholder) {
data.placeholder.remove();
}
});
}
else {
// get all placeholders from store
var placeholders = Array.from(stores.values())
.filter(function (data) { return data.placeholder !== undefined; })
.map(function (data) {
return data.placeholder;
});
// check if element is not in placeholders
if (placeholders.indexOf(element) === -1 && sortableElement === element && !_filter(element.children, options.items).length) {
placeholders.forEach(function (element) { return element.remove(); });
element.appendChild(store(sortableElement).placeholder);
}
}
}, options.debounce);
// Handle dragover and dragenter events on draggable items
var onDragOverEnter = function (e) {
var element = e.target;
var sortableElement = element.isSortable === true ? element : findSortable(element, e);
element = findDragElement(sortableElement, element);
if (!dragging || !_listsConnected(sortableElement, dragging.parentElement) || addData(sortableElement, '_disabled') === 'true') {
return;
}
var options = addData(sortableElement, 'opts');
if (parseInt(options.maxItems) && _filter(sortableElement.children, addData(sortableElement, 'items')).length >= parseInt(options.maxItems) && dragging.parentElement !== sortableElement) {
return;
}
e.preventDefault();
e.stopPropagation();
e.dataTransfer.dropEffect = store(sortableElement).getConfig('copy') === true ? 'copy' : 'move';
debouncedDragOverEnter(sortableElement, element, e.pageY);
};
addEventListener(listItems.concat(sortableElement), 'dragover', onDragOverEnter);
addEventListener(listItems.concat(sortableElement), 'dragenter', onDragOverEnter);
});
return sortableElements;
}
sortable.destroy = function (sortableElement) {
_destroySortable(sortableElement);
};
sortable.enable = function (sortableElement) {
_enableSortable(sortableElement);
};
sortable.disable = function (sortableElement) {
_disableSortable(sortableElement);
};
/* START.TESTS_ONLY */
sortable.__testing = {
// add internal methods here for testing purposes
_data: addData,
_removeItemEvents: _removeItemEvents,
_removeItemData: _removeItemData,
_removeSortableData: _removeSortableData
};
return sortable;
}());