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jkanban.js
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jkanban.js
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(function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
/**
* jKanban
* Vanilla Javascript plugin for manage kanban boards
*
* @site: http://www.riccardotartaglia.it/jkanban/
* @author: Riccardo Tartaglia
*/
//Require dragula
var dragula = require('dragula');
(function () {
this.jKanban = function () {
var self = this
var __DEFAULT_ITEM_HANDLE_OPTIONS = {
enabled: false
}
var __DEFAULT_ITEM_ADD_OPTIONS = {
enabled: false
}
this._disallowedItemProperties = [
'id',
'title',
'click',
'context',
'drag',
'dragend',
'drop',
'order'
]
this.element = ''
this.container = ''
this.boardContainer = []
this.handlers = []
this.dragula = dragula
this.drake = ''
this.drakeBoard = ''
this.itemAddOptions = __DEFAULT_ITEM_ADD_OPTIONS
this.itemHandleOptions = __DEFAULT_ITEM_HANDLE_OPTIONS
var defaults = {
element: '',
gutter: '15px',
widthBoard: '250px',
responsive: '700',
responsivePercentage: false,
boards: [],
dragBoards: true,
dragItems: true, //whether can drag cards or not, useful when set permissions on it.
itemAddOptions: __DEFAULT_ITEM_ADD_OPTIONS,
itemHandleOptions: __DEFAULT_ITEM_HANDLE_OPTIONS,
dragEl: function (el, source) {},
dragendEl: function (el) {},
dropEl: function (el, target, source, sibling) {},
dragBoard: function (el, source) {},
dragendBoard: function (el) {},
dropBoard: function (el, target, source, sibling) {},
click: function (el) {},
context: function (el, e) {},
buttonClick: function (el, boardId) {},
propagationHandlers: [],
}
if (arguments[0] && typeof arguments[0] === 'object') {
this.options = __extendDefaults(defaults, arguments[0])
}
this.__getCanMove = function (handle) {
if (!self.options.itemHandleOptions.enabled) {
return !!self.options.dragItems
}
if (self.options.itemHandleOptions.handleClass) {
return handle.classList.contains(self.options.itemHandleOptions.handleClass)
}
return handle.classList.contains('item_handle')
}
this.init = function () {
//set initial boards
__setBoard()
//set drag with dragula
if (window.innerWidth > self.options.responsive) {
//Init Drag Board
self.drakeBoard = self
.dragula([self.container], {
moves: function (el, source, handle, sibling) {
if (!self.options.dragBoards) return false
return (
handle.classList.contains('kanban-board-header') ||
handle.classList.contains('kanban-title-board')
)
},
accepts: function (el, target, source, sibling) {
return target.classList.contains('kanban-container')
},
revertOnSpill: true,
direction: 'horizontal'
})
.on('drag', function (el, source) {
el.classList.add('is-moving')
self.options.dragBoard(el, source)
if (typeof el.dragfn === 'function') el.dragfn(el, source)
})
.on('dragend', function (el) {
__updateBoardsOrder()
el.classList.remove('is-moving')
self.options.dragendBoard(el)
if (typeof el.dragendfn === 'function') el.dragendfn(el)
})
.on('drop', function (el, target, source, sibling) {
el.classList.remove('is-moving')
self.options.dropBoard(el, target, source, sibling)
if (typeof el.dropfn === 'function')
el.dropfn(el, target, source, sibling)
})
//Init Drag Item
self.drake = self
.dragula(self.boardContainer, {
moves: function (el, source, handle, sibling) {
return self.__getCanMove(handle)
},
revertOnSpill: true
})
.on('cancel', function (el, container, source) {
self.enableAllBoards()
})
.on('drag', function (el, source) {
var elClass = el.getAttribute('class')
if (elClass !== '' && elClass.indexOf('not-draggable') > -1) {
self.drake.cancel(true)
return
}
el.classList.add('is-moving')
self.options.dragEl(el, source)
var boardJSON = __findBoardJSON(source.parentNode.dataset.id)
if (boardJSON.dragTo !== undefined) {
self.options.boards.map(function (board) {
if (
boardJSON.dragTo.indexOf(board.id) === -1 &&
board.id !== source.parentNode.dataset.id
) {
self.findBoard(board.id).classList.add('disabled-board')
}
})
}
if (el !== null && typeof el.dragfn === 'function')
el.dragfn(el, source)
})
.on('dragend', function (el) {
self.options.dragendEl(el)
if (el !== null && typeof el.dragendfn === 'function')
el.dragendfn(el)
})
.on('drop', function (el, target, source, sibling) {
self.enableAllBoards()
var boardJSON = __findBoardJSON(source.parentNode.dataset.id)
if (boardJSON.dragTo !== undefined) {
if (
boardJSON.dragTo.indexOf(target.parentNode.dataset.id) === -1 &&
target.parentNode.dataset.id !== source.parentNode.dataset.id
) {
self.drake.cancel(true)
}
}
if (el !== null) {
var result = self.options.dropEl(el, target, source, sibling)
if (result === false) {
self.drake.cancel(true)
}
el.classList.remove('is-moving')
if (typeof el.dropfn === 'function')
el.dropfn(el, target, source, sibling)
}
})
}
}
this.enableAllBoards = function () {
var allB = document.querySelectorAll('.kanban-board')
if (allB.length > 0 && allB !== undefined) {
for (var i = 0; i < allB.length; i++) {
allB[i].classList.remove('disabled-board')
}
}
}
this.addElement = function (boardID, element, position) {
if (typeof position === 'undefined') {
position = -1
}
var board = self.element.querySelector(
'[data-id="' + boardID + '"] .kanban-drag'
)
var refElement = board.childNodes[position]
var nodeItem = document.createElement('div')
nodeItem.classList.add('kanban-item')
if (typeof element.id !== 'undefined' && element.id !== '') {
nodeItem.setAttribute('data-eid', element.id)
}
if (element.class && Array.isArray(element.class)) {
element.class.forEach(function (cl) {
nodeItem.classList.add(cl)
})
}
nodeItem.innerHTML = __buildItemCard(element)
//add function
nodeItem.clickfn = element.click
nodeItem.contextfn = element.context;
nodeItem.dragfn = element.drag
nodeItem.dragendfn = element.dragend
nodeItem.dropfn = element.drop
__appendCustomProperties(nodeItem, element)
__onclickHandler(nodeItem)
__onContextHandler(nodeItem)
if (self.options.itemHandleOptions.enabled) {
nodeItem.style.cursor = 'default'
}
board.insertBefore(nodeItem, refElement)
return self
}
this.addForm = function (boardID, formItem) {
var board = self.element.querySelector(
'[data-id="' + boardID + '"] .kanban-drag'
)
var _attribute = formItem.getAttribute('class')
formItem.setAttribute('class', _attribute + ' not-draggable')
board.appendChild(formItem)
return self
}
this.addBoards = function (boards, isInit) {
if (self.options.responsivePercentage) {
self.container.style.width = '100%'
self.options.gutter = '1%'
if (window.innerWidth > self.options.responsive) {
var boardWidth = (100 - boards.length * 2) / boards.length
} else {
var boardWidth = 100 - boards.length * 2
}
} else {
var boardWidth = self.options.widthBoard
}
var addButton = self.options.itemAddOptions.enabled
var buttonContent = self.options.itemAddOptions.content
var buttonClass = self.options.itemAddOptions.class
var buttonFooter = self.options.itemAddOptions.footer
//for on all the boards
for (var boardkey in boards) {
// single board
var board = boards[boardkey]
if (!isInit) {
self.options.boards.push(board)
}
if (!self.options.responsivePercentage) {
//add width to container
if (self.container.style.width === '') {
self.container.style.width =
parseInt(boardWidth) + parseInt(self.options.gutter) * 2 + 'px'
} else {
self.container.style.width =
parseInt(self.container.style.width) +
parseInt(boardWidth) +
parseInt(self.options.gutter) * 2 +
'px'
}
}
//create node
var boardNode = document.createElement('div')
boardNode.dataset.id = board.id
boardNode.dataset.order = self.container.childNodes.length + 1
boardNode.classList.add('kanban-board')
//set style
if (self.options.responsivePercentage) {
boardNode.style.width = boardWidth + '%'
} else {
boardNode.style.width = boardWidth
}
boardNode.style.marginLeft = self.options.gutter
boardNode.style.marginRight = self.options.gutter
// header board
var headerBoard = document.createElement('header')
if (board.class !== '' && board.class !== undefined)
var allClasses = board.class.split(',')
else allClasses = []
headerBoard.classList.add('kanban-board-header')
allClasses.map(function (value) {
// Remove empty spaces
value = value.replace(/^[ ]+/g, '')
headerBoard.classList.add(value)
})
headerBoard.innerHTML =
'<div class="kanban-title-board">' + board.title + '</div>'
//content board
var contentBoard = document.createElement('main')
contentBoard.classList.add('kanban-drag')
if (board.bodyClass !== '' && board.bodyClass !== undefined)
var bodyClasses = board.bodyClass.split(',')
else bodyClasses = []
bodyClasses.map(function (value) {
contentBoard.classList.add(value)
})
//add drag to array for dragula
self.boardContainer.push(contentBoard)
for (var itemkey in board.item) {
//create item
var itemKanban = board.item[itemkey]
var nodeItem = document.createElement('div')
nodeItem.classList.add('kanban-item')
if (itemKanban.id) {
nodeItem.dataset.eid = itemKanban.id
}
if (itemKanban.class && Array.isArray(itemKanban.class)) {
itemKanban.class.forEach(function (cl) {
nodeItem.classList.add(cl)
})
}
nodeItem.innerHTML = __buildItemCard(itemKanban)
//add function
nodeItem.clickfn = itemKanban.click
nodeItem.contextfn = itemKanban.context
nodeItem.dragfn = itemKanban.drag
nodeItem.dragendfn = itemKanban.dragend
nodeItem.dropfn = itemKanban.drop
__appendCustomProperties(nodeItem, itemKanban)
//add click handler of item
__onclickHandler(nodeItem)
__onContextHandler(nodeItem)
if (self.options.itemHandleOptions.enabled) {
nodeItem.style.cursor = 'default'
}
contentBoard.appendChild(nodeItem)
}
//footer board
var footerBoard = document.createElement('footer')
// if add button is true, add button to the board
if (addButton) {
var btn = document.createElement('BUTTON')
var t = document.createTextNode(buttonContent ? buttonContent : '+')
btn.setAttribute(
'class',
buttonClass ? buttonClass : 'kanban-title-button btn btn-default btn-xs'
)
btn.appendChild(t)
//var buttonHtml = '<button class="kanban-title-button btn btn-default btn-xs">'+buttonContent+'</button>'
if (buttonFooter) {
footerBoard.appendChild(btn)
} else {
headerBoard.appendChild(btn)
}
__onButtonClickHandler(btn, board.id)
}
//board assembly
boardNode.appendChild(headerBoard)
boardNode.appendChild(contentBoard)
boardNode.appendChild(footerBoard)
//board add
self.container.appendChild(boardNode)
}
return self
}
this.findBoard = function (id) {
var el = self.element.querySelector('[data-id="' + id + '"]')
return el
}
this.getParentBoardID = function (el) {
if (typeof el === 'string') {
el = self.element.querySelector('[data-eid="' + el + '"]')
}
if (el === null) {
return null
}
return el.parentNode.parentNode.dataset.id
}
this.moveElement = function (targetBoardID, elementID, element) {
if (targetBoardID === this.getParentBoardID(elementID)) {
return
}
this.removeElement(elementID)
return this.addElement(targetBoardID, element)
}
this.replaceElement = function (el, element) {
var nodeItem = el
if (typeof nodeItem === 'string') {
nodeItem = self.element.querySelector('[data-eid="' + el + '"]')
}
nodeItem.innerHTML = __buildItemCard(element)
// add function
nodeItem.clickfn = element.click
nodeItem.contextfn = element.context
nodeItem.dragfn = element.drag
nodeItem.dragendfn = element.dragend
nodeItem.dropfn = element.drop
__appendCustomProperties(nodeItem, element)
__onclickHandler(nodeItem)
__onContextHandler(nodeItem)
return self
}
this.findElement = function (id) {
var el = self.element.querySelector('[data-eid="' + id + '"]')
return el
}
this.getBoardElements = function (id) {
var board = self.element.querySelector(
'[data-id="' + id + '"] .kanban-drag'
)
return board.childNodes
}
this.removeElement = function (el) {
if (typeof el === 'string')
el = self.element.querySelector('[data-eid="' + el + '"]')
if (el !== null) {
//fallback for IE
if (typeof el.remove == 'function') {
el.remove()
} else {
el.parentNode.removeChild(el)
}
}
return self
}
this.removeBoard = function (board) {
var boardElement = null
if (typeof board === 'string')
boardElement = self.element.querySelector('[data-id="' + board + '"]')
if (boardElement !== null) {
//fallback for IE
if (typeof boardElement.remove == 'function') {
boardElement.remove()
} else {
boardElement.parentNode.removeChild(boardElement)
}
}
// remove thboard in options.boards
for (var i = 0; i < self.options.boards.length; i++) {
if (self.options.boards[i].id === board) {
self.options.boards.splice(i, 1)
break
}
}
return self
}
// board button on click function
this.onButtonClick = function (el) {}
//PRIVATE FUNCTION
function __extendDefaults (source, properties) {
var property
for (property in properties) {
if (properties.hasOwnProperty(property)) {
source[property] = properties[property]
}
}
return source
}
function __setBoard () {
self.element = document.querySelector(self.options.element)
//create container
var boardContainer = document.createElement('div')
boardContainer.classList.add('kanban-container')
self.container = boardContainer
//add boards
if (document.querySelector(self.options.element).dataset.hasOwnProperty('board')) {
url = document.querySelector(self.options.element).dataset.board
window.fetch(url, {
method: 'GET',
headers: { 'Content-Type': 'application/json' }
})
.then(function (response) {
// log response text
response.json().then(function (data) {
self.options.boards = data
self.addBoards(self.options.boards, true)
})
})
.catch(function (error) {
console.log('Error: ', error)
})
} else {
self.addBoards(self.options.boards, true)
}
//appends to container
self.element.appendChild(self.container)
}
function __onclickHandler (nodeItem, clickfn) {
nodeItem.addEventListener('click', function (e) {
if (!self.options.propagationHandlers.includes('click')) e.preventDefault()
self.options.click(this)
if (typeof this.clickfn === 'function') this.clickfn(this)
})
}
function __onContextHandler(nodeItem, contextfn) {
if (nodeItem.addEventListener) {
nodeItem.addEventListener('contextmenu', function (e) {
if (!self.options.propagationHandlers.includes('context')) e.preventDefault()
self.options.context(this, e)
if (typeof this.contextfn === 'function') this.contextfn(this, e)
}, false)
} else {
nodeItem.attachEvent('oncontextmenu', function () {
self.options.context(this)
if (typeof this.contextfn === 'function') this.contextfn(this)
if (!self.options.propagationHandlers.includes('context')) window.event.returnValue = false
})
}
}
function __onButtonClickHandler (nodeItem, boardId) {
nodeItem.addEventListener('click', function (e) {
e.preventDefault()
self.options.buttonClick(this, boardId)
// if(typeof(this.clickfn) === 'function')
// this.clickfn(this);
})
}
function __findBoardJSON (id) {
var el = []
self.options.boards.map(function (board) {
if (board.id === id) {
return el.push(board)
}
})
return el[0]
}
function __appendCustomProperties (element, parentObject) {
for (var propertyName in parentObject) {
if (self._disallowedItemProperties.indexOf(propertyName) > -1) {
continue
}
element.setAttribute(
'data-' + propertyName,
parentObject[propertyName]
)
}
}
function __updateBoardsOrder () {
var index = 1
for (var i = 0; i < self.container.childNodes.length; i++) {
self.container.childNodes[i].dataset.order = index++
}
}
function __buildItemCard(item) {
var result = 'title' in item ? item.title : '';
if (self.options.itemHandleOptions.enabled) {
if ((self.options.itemHandleOptions.customHandler || undefined) === undefined) {
var customCssHandler = self.options.itemHandleOptions.customCssHandler
var customCssIconHandler = self.options.itemHandleOptions.customCssIconHandler
var customItemLayout = self.options.itemHandleOptions.customItemLayout
if ((customCssHandler || undefined) === undefined) {
customCssHandler = 'drag_handler';
}
if ((customCssIconHandler || undefined) === undefined) {
customCssIconHandler = customCssHandler + '_icon';
}
if ((customItemLayout || undefined) === undefined) {
customItemLayout = '';
}
result = '<div class=\'item_handle ' + customCssHandler + '\'><i class=\'item_handle ' + customCssIconHandler + '\'></i></div><div>' + result + '</div>'
} else {
result = '<div> ' + self.options.itemHandleOptions.customHandler.replace(/%([^%]+)%/g, function (match, key)
{ return item[key] !== undefined ? item[key] : '' }) + ' </div>'
return result
}
}
return result
}
//init plugin
this.init()
}
})()
},{"dragula":9}],2:[function(require,module,exports){
module.exports = function atoa (a, n) { return Array.prototype.slice.call(a, n); }
},{}],3:[function(require,module,exports){
'use strict';
var ticky = require('ticky');
module.exports = function debounce (fn, args, ctx) {
if (!fn) { return; }
ticky(function run () {
fn.apply(ctx || null, args || []);
});
};
},{"ticky":11}],4:[function(require,module,exports){
'use strict';
var atoa = require('atoa');
var debounce = require('./debounce');
module.exports = function emitter (thing, options) {
var opts = options || {};
var evt = {};
if (thing === undefined) { thing = {}; }
thing.on = function (type, fn) {
if (!evt[type]) {
evt[type] = [fn];
} else {
evt[type].push(fn);
}
return thing;
};
thing.once = function (type, fn) {
fn._once = true; // thing.off(fn) still works!
thing.on(type, fn);
return thing;
};
thing.off = function (type, fn) {
var c = arguments.length;
if (c === 1) {
delete evt[type];
} else if (c === 0) {
evt = {};
} else {
var et = evt[type];
if (!et) { return thing; }
et.splice(et.indexOf(fn), 1);
}
return thing;
};
thing.emit = function () {
var args = atoa(arguments);
return thing.emitterSnapshot(args.shift()).apply(this, args);
};
thing.emitterSnapshot = function (type) {
var et = (evt[type] || []).slice(0);
return function () {
var args = atoa(arguments);
var ctx = this || thing;
if (type === 'error' && opts.throws !== false && !et.length) { throw args.length === 1 ? args[0] : args; }
et.forEach(function emitter (listen) {
if (opts.async) { debounce(listen, args, ctx); } else { listen.apply(ctx, args); }
if (listen._once) { thing.off(type, listen); }
});
return thing;
};
};
return thing;
};
},{"./debounce":3,"atoa":2}],5:[function(require,module,exports){
(function (global){(function (){
'use strict';
var customEvent = require('custom-event');
var eventmap = require('./eventmap');
var doc = global.document;
var addEvent = addEventEasy;
var removeEvent = removeEventEasy;
var hardCache = [];
if (!global.addEventListener) {
addEvent = addEventHard;
removeEvent = removeEventHard;
}
module.exports = {
add: addEvent,
remove: removeEvent,
fabricate: fabricateEvent
};
function addEventEasy (el, type, fn, capturing) {
return el.addEventListener(type, fn, capturing);
}
function addEventHard (el, type, fn) {
return el.attachEvent('on' + type, wrap(el, type, fn));
}
function removeEventEasy (el, type, fn, capturing) {
return el.removeEventListener(type, fn, capturing);
}
function removeEventHard (el, type, fn) {
var listener = unwrap(el, type, fn);
if (listener) {
return el.detachEvent('on' + type, listener);
}
}
function fabricateEvent (el, type, model) {
var e = eventmap.indexOf(type) === -1 ? makeCustomEvent() : makeClassicEvent();
if (el.dispatchEvent) {
el.dispatchEvent(e);
} else {
el.fireEvent('on' + type, e);
}
function makeClassicEvent () {
var e;
if (doc.createEvent) {
e = doc.createEvent('Event');
e.initEvent(type, true, true);
} else if (doc.createEventObject) {
e = doc.createEventObject();
}
return e;
}
function makeCustomEvent () {
return new customEvent(type, { detail: model });
}
}
function wrapperFactory (el, type, fn) {
return function wrapper (originalEvent) {
var e = originalEvent || global.event;
e.target = e.target || e.srcElement;
e.preventDefault = e.preventDefault || function preventDefault () { e.returnValue = false; };
e.stopPropagation = e.stopPropagation || function stopPropagation () { e.cancelBubble = true; };
e.which = e.which || e.keyCode;
fn.call(el, e);
};
}
function wrap (el, type, fn) {
var wrapper = unwrap(el, type, fn) || wrapperFactory(el, type, fn);
hardCache.push({
wrapper: wrapper,
element: el,
type: type,
fn: fn
});
return wrapper;
}
function unwrap (el, type, fn) {
var i = find(el, type, fn);
if (i) {
var wrapper = hardCache[i].wrapper;
hardCache.splice(i, 1); // free up a tad of memory
return wrapper;
}
}
function find (el, type, fn) {
var i, item;
for (i = 0; i < hardCache.length; i++) {
item = hardCache[i];
if (item.element === el && item.type === type && item.fn === fn) {
return i;
}
}
}
}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./eventmap":6,"custom-event":7}],6:[function(require,module,exports){
(function (global){(function (){
'use strict';
var eventmap = [];
var eventname = '';
var ron = /^on/;
for (eventname in global) {
if (ron.test(eventname)) {
eventmap.push(eventname.slice(2));
}
}
module.exports = eventmap;
}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],7:[function(require,module,exports){
(function (global){(function (){
var NativeCustomEvent = global.CustomEvent;
function useNative () {
try {
var p = new NativeCustomEvent('cat', { detail: { foo: 'bar' } });
return 'cat' === p.type && 'bar' === p.detail.foo;
} catch (e) {
}
return false;
}
/**
* Cross-browser `CustomEvent` constructor.
*
* https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent.CustomEvent
*
* @public
*/
module.exports = useNative() ? NativeCustomEvent :
// IE >= 9
'undefined' !== typeof document && 'function' === typeof document.createEvent ? function CustomEvent (type, params) {
var e = document.createEvent('CustomEvent');
if (params) {
e.initCustomEvent(type, params.bubbles, params.cancelable, params.detail);
} else {
e.initCustomEvent(type, false, false, void 0);
}
return e;
} :
// IE <= 8
function CustomEvent (type, params) {
var e = document.createEventObject();
e.type = type;
if (params) {
e.bubbles = Boolean(params.bubbles);
e.cancelable = Boolean(params.cancelable);
e.detail = params.detail;
} else {
e.bubbles = false;
e.cancelable = false;
e.detail = void 0;
}
return e;
}
}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],8:[function(require,module,exports){
'use strict';
var cache = {};
var start = '(?:^|\\s)';
var end = '(?:\\s|$)';
function lookupClass (className) {
var cached = cache[className];
if (cached) {
cached.lastIndex = 0;
} else {
cache[className] = cached = new RegExp(start + className + end, 'g');
}
return cached;
}
function addClass (el, className) {
var current = el.className;
if (!current.length) {
el.className = className;
} else if (!lookupClass(className).test(current)) {
el.className += ' ' + className;
}
}
function rmClass (el, className) {
el.className = el.className.replace(lookupClass(className), ' ').trim();
}
module.exports = {
add: addClass,
rm: rmClass
};
},{}],9:[function(require,module,exports){
(function (global){(function (){
'use strict';
var emitter = require('contra/emitter');
var crossvent = require('crossvent');
var classes = require('./classes');
var doc = document;
var documentElement = doc.documentElement;
function dragula (initialContainers, options) {
var len = arguments.length;
if (len === 1 && Array.isArray(initialContainers) === false) {
options = initialContainers;
initialContainers = [];
}
var _mirror; // mirror image
var _source; // source container
var _item; // item being dragged
var _offsetX; // reference x
var _offsetY; // reference y
var _moveX; // reference move x
var _moveY; // reference move y
var _initialSibling; // reference sibling when grabbed
var _currentSibling; // reference sibling now
var _copy; // item used for copying
var _renderTimer; // timer for setTimeout renderMirrorImage
var _lastDropTarget = null; // last container item was over
var _grabbed; // holds mousedown context until first mousemove
var o = options || {};
if (o.moves === void 0) { o.moves = always; }
if (o.accepts === void 0) { o.accepts = always; }
if (o.invalid === void 0) { o.invalid = invalidTarget; }
if (o.containers === void 0) { o.containers = initialContainers || []; }
if (o.isContainer === void 0) { o.isContainer = never; }
if (o.copy === void 0) { o.copy = false; }
if (o.copySortSource === void 0) { o.copySortSource = false; }
if (o.revertOnSpill === void 0) { o.revertOnSpill = false; }
if (o.removeOnSpill === void 0) { o.removeOnSpill = false; }
if (o.direction === void 0) { o.direction = 'vertical'; }
if (o.ignoreInputTextSelection === void 0) { o.ignoreInputTextSelection = true; }
if (o.mirrorContainer === void 0) { o.mirrorContainer = doc.body; }
var drake = emitter({
containers: o.containers,
start: manualStart,
end: end,
cancel: cancel,
remove: remove,
destroy: destroy,
canMove: canMove,
dragging: false
});
if (o.removeOnSpill === true) {
drake.on('over', spillOver).on('out', spillOut);
}
events();
return drake;
function isContainer (el) {
return drake.containers.indexOf(el) !== -1 || o.isContainer(el);
}
function events (remove) {
var op = remove ? 'remove' : 'add';
touchy(documentElement, op, 'mousedown', grab);
touchy(documentElement, op, 'mouseup', release);
}
function eventualMovements (remove) {
var op = remove ? 'remove' : 'add';
touchy(documentElement, op, 'mousemove', startBecauseMouseMoved);
}
function movements (remove) {
var op = remove ? 'remove' : 'add';
crossvent[op](documentElement, 'selectstart', preventGrabbed); // IE8
crossvent[op](documentElement, 'click', preventGrabbed);
}
function destroy () {
events(true);
release({});
}
function preventGrabbed (e) {
if (_grabbed) {
e.preventDefault();
}
}
function grab (e) {
_moveX = e.clientX;
_moveY = e.clientY;
var ignore = whichMouseButton(e) !== 1 || e.metaKey || e.ctrlKey;
if (ignore) {
return; // we only care about honest-to-god left clicks and touch events
}
var item = e.target;
var context = canStart(item);
if (!context) {
return;
}
_grabbed = context;
eventualMovements();