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Name	Type	Size	Action
..	dir	-
buttons.bootstrap.js	file	2462	edit
buttons.bootstrap.min.js	file	1556	edit
buttons.bootstrap4.js	file	2620	edit
buttons.bootstrap4.min.js	file	1693	edit
buttons.bootstrap5.js	file	2620	edit
buttons.bootstrap5.min.js	file	1693	edit
buttons.bulma.js	file	2910	edit
buttons.bulma.min.js	file	1811	edit
buttons.colVis.js	file	6379	edit
buttons.colVis.min.js	file	3340	edit
buttons.dataTables.js	file	1276	edit
buttons.dataTables.min.js	file	683	edit
buttons.foundation.js	file	2459	edit
buttons.foundation.min.js	file	1530	edit
buttons.html5.js	file	44847	edit
buttons.html5.min.js	file	25207	edit
buttons.jqueryui.js	file	2141	edit
buttons.jqueryui.min.js	file	1368	edit
buttons.print.js	file	5735	edit
buttons.print.min.js	file	2669	edit
buttons.semanticui.js	file	2814	edit
buttons.semanticui.min.js	file	1804	edit
dataTables.buttons.js	file	62202	edit
dataTables.buttons.min.js	file	25574	edit

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Editing: wp-content/plugins/delete-duplicate-posts/js/DataTables/Buttons-2.4.2/js/dataTables.buttons.js

/*! Buttons for DataTables 2.4.2
 * © SpryMedia Ltd - datatables.net/license
 */

if (typeof window === 'undefined') {
			module.exports = function (root, $) {
				if ( ! root ) {
					// CommonJS environments without a window global must pass a
					// root. This will give an error otherwise
					root = window;
				}

if ( ! $ ) {
					$ = jq( root );
				}

cjsRequires( root, $ );
				return factory( $, root, root.document );
			};
		}
		else {
			cjsRequires( window, jq );
			module.exports = factory( jq, window, window.document );
		}
	}
	else {
		// Browser
		factory( jQuery, window, document );
	}
}(function( $, window, document, undefined ) {
'use strict';
var DataTable = $.fn.dataTable;

// Used for namespacing events added to the document by each instance, so they
// can be removed on destroy
var _instCounter = 0;

// Button namespacing counter for namespacing events on individual buttons
var _buttonCounter = 0;

var _dtButtons = DataTable.ext.buttons;

// Custom entity decoder for data export
var _entityDecoder = null;

// Allow for jQuery slim
function _fadeIn(el, duration, fn) {
	if ($.fn.animate) {
		el.stop().fadeIn(duration, fn);
	}
	else {
		el.css('display', 'block');

if (fn) {
			fn.call(el);
		}
	}
}

function _fadeOut(el, duration, fn) {
	if ($.fn.animate) {
		el.stop().fadeOut(duration, fn);
	}
	else {
		el.css('display', 'none');

if (fn) {
			fn.call(el);
		}
	}
}

/**
 * [Buttons description]
 * @param {[type]}
 * @param {[type]}
 */
var Buttons = function (dt, config) {
	// If not created with a `new` keyword then we return a wrapper function that
	// will take the settings object for a DT. This allows easy use of new instances
	// with the `layout` option - e.g. `topLeft: $.fn.dataTable.Buttons( ... )`.
	if (!(this instanceof Buttons)) {
		return function (settings) {
			return new Buttons(settings, dt).container();
		};
	}

// If there is no config set it to an empty object
	if (typeof config === 'undefined') {
		config = {};
	}

// Allow a boolean true for defaults
	if (config === true) {
		config = {};
	}

// For easy configuration of buttons an array can be given
	if (Array.isArray(config)) {
		config = { buttons: config };
	}

this.c = $.extend(true, {}, Buttons.defaults, config);

// Don't want a deep copy for the buttons
	if (config.buttons) {
		this.c.buttons = config.buttons;
	}

this.s = {
		dt: new DataTable.Api(dt),
		buttons: [],
		listenKeys: '',
		namespace: 'dtb' + _instCounter++
	};

this.dom = {
		container: $('<' + this.c.dom.container.tag + '/>').addClass(this.c.dom.container.className)
	};

this._constructor();
};

$.extend(Buttons.prototype, {
	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
	 * Public methods
	 */

/**
	 * Get the action of a button
	 * @param  {int|string} Button index
	 * @return {function}
	 */ /**
	 * Set the action of a button
	 * @param  {node} node Button element
	 * @param  {function} action Function to set
	 * @return {Buttons} Self for chaining
	 */
	action: function (node, action) {
		var button = this._nodeToButton(node);

if (action === undefined) {
			return button.conf.action;
		}

button.conf.action = action;

return this;
	},

/**
	 * Add an active class to the button to make to look active or get current
	 * active state.
	 * @param  {node} node Button element
	 * @param  {boolean} [flag] Enable / disable flag
	 * @return {Buttons} Self for chaining or boolean for getter
	 */
	active: function (node, flag) {
		var button = this._nodeToButton(node);
		var klass = this.c.dom.button.active;
		var jqNode = $(button.node);

if (
			button.inCollection &&
			this.c.dom.collection.button &&
			this.c.dom.collection.button.active !== undefined
		) {
			klass = this.c.dom.collection.button.active;
		}

if (flag === undefined) {
			return jqNode.hasClass(klass);
		}

jqNode.toggleClass(klass, flag === undefined ? true : flag);

return this;
	},

/**
	 * Add a new button
	 * @param {object} config Button configuration object, base string name or function
	 * @param {int|string} [idx] Button index for where to insert the button
	 * @param {boolean} [draw=true] Trigger a draw. Set a false when adding
	 *   lots of buttons, until the last button.
	 * @return {Buttons} Self for chaining
	 */
	add: function (config, idx, draw) {
		var buttons = this.s.buttons;

if (typeof idx === 'string') {
			var split = idx.split('-');
			var base = this.s;

for (var i = 0, ien = split.length - 1; i < ien; i++) {
				base = base.buttons[split[i] * 1];
			}

buttons = base.buttons;
			idx = split[split.length - 1] * 1;
		}

this._expandButton(
			buttons,
			config,
			config !== undefined ? config.split : undefined,
			(config === undefined || config.split === undefined || config.split.length === 0) &&
				base !== undefined,
			false,
			idx
		);

if (draw === undefined || draw === true) {
			this._draw();
		}

return this;
	},

/**
	 * Clear buttons from a collection and then insert new buttons
	 */
	collectionRebuild: function (node, newButtons) {
		var button = this._nodeToButton(node);

if (newButtons !== undefined) {
			var i;
			// Need to reverse the array
			for (i = button.buttons.length - 1; i >= 0; i--) {
				this.remove(button.buttons[i].node);
			}

// If the collection has prefix and / or postfix buttons we need to add them in
			if (button.conf.prefixButtons) {
				newButtons.unshift.apply(newButtons, button.conf.prefixButtons);
			}

if (button.conf.postfixButtons) {
				newButtons.push.apply(newButtons, button.conf.postfixButtons);
			}

for (i = 0; i < newButtons.length; i++) {
				var newBtn = newButtons[i];

this._expandButton(
					button.buttons,
					newBtn,
					newBtn !== undefined &&
						newBtn.config !== undefined &&
						newBtn.config.split !== undefined,
					true,
					newBtn.parentConf !== undefined && newBtn.parentConf.split !== undefined,
					null,
					newBtn.parentConf
				);
			}
		}

this._draw(button.collection, button.buttons);
	},

/**
	 * Get the container node for the buttons
	 * @return {jQuery} Buttons node
	 */
	container: function () {
		return this.dom.container;
	},

/**
	 * Disable a button
	 * @param  {node} node Button node
	 * @return {Buttons} Self for chaining
	 */
	disable: function (node) {
		var button = this._nodeToButton(node);

$(button.node).addClass(this.c.dom.button.disabled).prop('disabled', true);

return this;
	},

/**
	 * Destroy the instance, cleaning up event handlers and removing DOM
	 * elements
	 * @return {Buttons} Self for chaining
	 */
	destroy: function () {
		// Key event listener
		$('body').off('keyup.' + this.s.namespace);

// Individual button destroy (so they can remove their own events if
		// needed). Take a copy as the array is modified by `remove`
		var buttons = this.s.buttons.slice();
		var i, ien;

for (i = 0, ien = buttons.length; i < ien; i++) {
			this.remove(buttons[i].node);
		}

// Container
		this.dom.container.remove();

// Remove from the settings object collection
		var buttonInsts = this.s.dt.settings()[0];

for (i = 0, ien = buttonInsts.length; i < ien; i++) {
			if (buttonInsts.inst === this) {
				buttonInsts.splice(i, 1);
				break;
			}
		}

return this;
	},

/**
	 * Enable / disable a button
	 * @param  {node} node Button node
	 * @param  {boolean} [flag=true] Enable / disable flag
	 * @return {Buttons} Self for chaining
	 */
	enable: function (node, flag) {
		if (flag === false) {
			return this.disable(node);
		}

var button = this._nodeToButton(node);
		$(button.node).removeClass(this.c.dom.button.disabled).prop('disabled', false);

return this;
	},

/**
	 * Get a button's index
	 *
	 * This is internally recursive
	 * @param {element} node Button to get the index of
	 * @return {string} Button index
	 */
	index: function (node, nested, buttons) {
		if (!nested) {
			nested = '';
			buttons = this.s.buttons;
		}

for (var i = 0, ien = buttons.length; i < ien; i++) {
			var inner = buttons[i].buttons;

if (buttons[i].node === node) {
				return nested + i;
			}

if (inner && inner.length) {
				var match = this.index(node, i + '-', inner);

if (match !== null) {
					return match;
				}
			}
		}

return null;
	},

/**
	 * Get the instance name for the button set selector
	 * @return {string} Instance name
	 */
	name: function () {
		return this.c.name;
	},

/**
	 * Get a button's node of the buttons container if no button is given
	 * @param  {node} [node] Button node
	 * @return {jQuery} Button element, or container
	 */
	node: function (node) {
		if (!node) {
			return this.dom.container;
		}

var button = this._nodeToButton(node);
		return $(button.node);
	},

/**
	 * Set / get a processing class on the selected button
	 * @param {element} node Triggering button node
	 * @param  {boolean} flag true to add, false to remove, undefined to get
	 * @return {boolean|Buttons} Getter value or this if a setter.
	 */
	processing: function (node, flag) {
		var dt = this.s.dt;
		var button = this._nodeToButton(node);

if (flag === undefined) {
			return $(button.node).hasClass('processing');
		}

$(button.node).toggleClass('processing', flag);

$(dt.table().node()).triggerHandler('buttons-processing.dt', [
			flag,
			dt.button(node),
			dt,
			$(node),
			button.conf
		]);

return this;
	},

/**
	 * Remove a button.
	 * @param  {node} node Button node
	 * @return {Buttons} Self for chaining
	 */
	remove: function (node) {
		var button = this._nodeToButton(node);
		var host = this._nodeToHost(node);
		var dt = this.s.dt;

// Remove any child buttons first
		if (button.buttons.length) {
			for (var i = button.buttons.length - 1; i >= 0; i--) {
				this.remove(button.buttons[i].node);
			}
		}

button.conf.destroying = true;

// Allow the button to remove event handlers, etc
		if (button.conf.destroy) {
			button.conf.destroy.call(dt.button(node), dt, $(node), button.conf);
		}

this._removeKey(button.conf);

$(button.node).remove();

var idx = $.inArray(button, host);
		host.splice(idx, 1);

return this;
	},

/**
	 * Get the text for a button
	 * @param  {int|string} node Button index
	 * @return {string} Button text
	 */ /**
	 * Set the text for a button
	 * @param  {int|string|function} node Button index
	 * @param  {string} label Text
	 * @return {Buttons} Self for chaining
	 */
	text: function (node, label) {
		var button = this._nodeToButton(node);
		var textNode = button.textNode;
		var dt = this.s.dt;
		var jqNode = $(button.node);
		var text = function (opt) {
			return typeof opt === 'function' ? opt(dt, jqNode, button.conf) : opt;
		};

if (label === undefined) {
			return text(button.conf.text);
		}

button.conf.text = label;
		textNode.html(text(label));

return this;
	},

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
	 * Constructor
	 */

/**
	 * Buttons constructor
	 * @private
	 */
	_constructor: function () {
		var that = this;
		var dt = this.s.dt;
		var dtSettings = dt.settings()[0];
		var buttons = this.c.buttons;

if (!dtSettings._buttons) {
			dtSettings._buttons = [];
		}

dtSettings._buttons.push({
			inst: this,
			name: this.c.name
		});

for (var i = 0, ien = buttons.length; i < ien; i++) {
			this.add(buttons[i]);
		}

dt.on('destroy', function (e, settings) {
			if (settings === dtSettings) {
				that.destroy();
			}
		});

// Global key event binding to listen for button keys
		$('body').on('keyup.' + this.s.namespace, function (e) {
			if (!document.activeElement || document.activeElement === document.body) {
				// SUse a string of characters for fast lookup of if we need to
				// handle this
				var character = String.fromCharCode(e.keyCode).toLowerCase();

if (that.s.listenKeys.toLowerCase().indexOf(character) !== -1) {
					that._keypress(character, e);
				}
			}
		});
	},

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
	 * Private methods
	 */

/**
	 * Add a new button to the key press listener
	 * @param {object} conf Resolved button configuration object
	 * @private
	 */
	_addKey: function (conf) {
		if (conf.key) {
			this.s.listenKeys += $.isPlainObject(conf.key) ? conf.key.key : conf.key;
		}
	},

/**
	 * Insert the buttons into the container. Call without parameters!
	 * @param  {node} [container] Recursive only - Insert point
	 * @param  {array} [buttons] Recursive only - Buttons array
	 * @private
	 */
	_draw: function (container, buttons) {
		if (!container) {
			container = this.dom.container;
			buttons = this.s.buttons;
		}

container.children().detach();

for (var i = 0, ien = buttons.length; i < ien; i++) {
			container.append(buttons[i].inserter);
			container.append(' ');

if (buttons[i].buttons && buttons[i].buttons.length) {
				this._draw(buttons[i].collection, buttons[i].buttons);
			}
		}
	},

/**
	 * Create buttons from an array of buttons
	 * @param  {array} attachTo Buttons array to attach to
	 * @param  {object} button Button definition
	 * @param  {boolean} inCollection true if the button is in a collection
	 * @private
	 */
	_expandButton: function (
		attachTo,
		button,
		split,
		inCollection,
		inSplit,
		attachPoint,
		parentConf
	) {
		var dt = this.s.dt;
		var isSplit = false;
		var domCollection = this.c.dom.collection;
		var buttons = !Array.isArray(button) ? [button] : button;

if (button === undefined) {
			buttons = !Array.isArray(split) ? [split] : split;
		}

for (var i = 0, ien = buttons.length; i < ien; i++) {
			var conf = this._resolveExtends(buttons[i]);

if (!conf) {
				continue;
			}

isSplit = conf.config && conf.config.split ? true : false;

// If the configuration is an array, then expand the buttons at this
			// point
			if (Array.isArray(conf)) {
				this._expandButton(
					attachTo,
					conf,
					built !== undefined && built.conf !== undefined ? built.conf.split : undefined,
					inCollection,
					parentConf !== undefined && parentConf.split !== undefined,
					attachPoint,
					parentConf
				);
				continue;
			}

var built = this._buildButton(
				conf,
				inCollection,
				conf.split !== undefined ||
					(conf.config !== undefined && conf.config.split !== undefined),
				inSplit
			);
			if (!built) {
				continue;
			}

if (attachPoint !== undefined && attachPoint !== null) {
				attachTo.splice(attachPoint, 0, built);
				attachPoint++;
			}
			else {
				attachTo.push(built);
			}

// Create the dropdown for a collection
			if (built.conf.buttons) {
				built.collection = $('<' + domCollection.container.content.tag + '/>');
				built.conf._collection = built.collection;

$(built.node).append(domCollection.action.dropHtml);

this._expandButton(
					built.buttons,
					built.conf.buttons,
					built.conf.split,
					!isSplit,
					isSplit,
					attachPoint,
					built.conf
				);
			}

// And the split collection
			if (built.conf.split) {
				built.collection = $('<' + domCollection.container.tag + '/>');
				built.conf._collection = built.collection;

for (var j = 0; j < built.conf.split.length; j++) {
					var item = built.conf.split[j];

if (typeof item === 'object') {
						item.parent = parentConf;

if (item.collectionLayout === undefined) {
							item.collectionLayout = built.conf.collectionLayout;
						}

if (item.dropup === undefined) {
							item.dropup = built.conf.dropup;
						}

if (item.fade === undefined) {
							item.fade = built.conf.fade;
						}
					}
				}

this._expandButton(
					built.buttons,
					built.conf.buttons,
					built.conf.split,
					!isSplit,
					isSplit,
					attachPoint,
					built.conf
				);
			}

built.conf.parent = parentConf;

// init call is made here, rather than buildButton as it needs to
			// be selectable, and for that it needs to be in the buttons array
			if (conf.init) {
				conf.init.call(dt.button(built.node), dt, $(built.node), conf);
			}
		}
	},

/**
	 * Create an individual button
	 * @param  {object} config            Resolved button configuration
	 * @param  {boolean} inCollection `true` if a collection button
	 * @return {object} Completed button description object
	 * @private
	 */
	_buildButton: function (config, inCollection, isSplit, inSplit) {
		var configDom = this.c.dom;
		var textNode;
		var dt = this.s.dt;
		var text = function (opt) {
			return typeof opt === 'function' ? opt(dt, button, config) : opt;
		};

// Create an object that describes the button which can be in `dom.button`, or
		// `dom.collection.button` or `dom.split.button` or `dom.collection.split.button`!
		// Each should extend from `dom.button`.
		var dom = $.extend(true, {}, configDom.button);

if (inCollection && isSplit && configDom.collection.split) {
			$.extend(true, dom, configDom.collection.split.action);
		}
		else if (inSplit || inCollection) {
			$.extend(true, dom, configDom.collection.button);
		}
		else if (isSplit) {
			$.extend(true, dom, configDom.split.button);
		}

// Spacers don't do much other than insert an element into the DOM
		if (config.spacer) {
			var spacer = $('<' + dom.spacer.tag + '/>')
				.addClass('dt-button-spacer ' + config.style + ' ' + dom.spacer.className)
				.html(text(config.text));

return {
				conf: config,
				node: spacer,
				inserter: spacer,
				buttons: [],
				inCollection: inCollection,
				isSplit: isSplit,
				collection: null,
				textNode: spacer
			};
		}

// Make sure that the button is available based on whatever requirements
		// it has. For example, PDF button require pdfmake
		if (config.available && !config.available(dt, config) && !config.hasOwnProperty('html')) {
			return false;
		}

var button;

if (!config.hasOwnProperty('html')) {
			var action = function (e, dt, button, config) {
				config.action.call(dt.button(button), e, dt, button, config);

$(dt.table().node()).triggerHandler('buttons-action.dt', [
					dt.button(button),
					dt,
					button,
					config
				]);
			};

var tag = config.tag || dom.tag;
			var clickBlurs = config.clickBlurs === undefined ? true : config.clickBlurs;

button = $('<' + tag + '/>')
				.addClass(dom.className)
				.attr('tabindex', this.s.dt.settings()[0].iTabIndex)
				.attr('aria-controls', this.s.dt.table().node().id)
				.on('click.dtb', function (e) {
					e.preventDefault();

if (!button.hasClass(dom.disabled) && config.action) {
						action(e, dt, button, config);
					}

if (clickBlurs) {
						button.trigger('blur');
					}
				})
				.on('keypress.dtb', function (e) {
					if (e.keyCode === 13) {
						e.preventDefault();

if (!button.hasClass(dom.disabled) && config.action) {
							action(e, dt, button, config);
						}
					}
				});

// Make `a` tags act like a link
			if (tag.toLowerCase() === 'a') {
				button.attr('href', '#');
			}

// Button tags should have `type=button` so they don't have any default behaviour
			if (tag.toLowerCase() === 'button') {
				button.attr('type', 'button');
			}

if (dom.liner.tag) {
				var liner = $('<' + dom.liner.tag + '/>')
					.html(text(config.text))
					.addClass(dom.liner.className);

if (dom.liner.tag.toLowerCase() === 'a') {
					liner.attr('href', '#');
				}

button.append(liner);
				textNode = liner;
			}
			else {
				button.html(text(config.text));
				textNode = button;
			}

if (config.enabled === false) {
				button.addClass(dom.disabled);
			}

if (config.className) {
				button.addClass(config.className);
			}

if (config.titleAttr) {
				button.attr('title', text(config.titleAttr));
			}

if (config.attr) {
				button.attr(config.attr);
			}

if (!config.namespace) {
				config.namespace = '.dt-button-' + _buttonCounter++;
			}

if (config.config !== undefined && config.config.split) {
				config.split = config.config.split;
			}
		}
		else {
			button = $(config.html);
		}

var buttonContainer = this.c.dom.buttonContainer;
		var inserter;
		if (buttonContainer && buttonContainer.tag) {
			inserter = $('<' + buttonContainer.tag + '/>')
				.addClass(buttonContainer.className)
				.append(button);
		}
		else {
			inserter = button;
		}

this._addKey(config);

// Style integration callback for DOM manipulation
		// Note that this is _not_ documented. It is currently
		// for style integration only
		if (this.c.buttonCreated) {
			inserter = this.c.buttonCreated(config, inserter);
		}

var splitDiv;

if (isSplit) {
			var dropdownConf = inCollection
				? $.extend(true, this.c.dom.split, this.c.dom.collection.split)
				: this.c.dom.split;
			var wrapperConf = dropdownConf.wrapper;

splitDiv = $('<' + wrapperConf.tag + '/>')
				.addClass(wrapperConf.className)
				.append(button);

var dropButtonConfig = $.extend(config, {
				align: dropdownConf.dropdown.align,
				attr: {
					'aria-haspopup': 'dialog',
					'aria-expanded': false
				},
				className: dropdownConf.dropdown.className,
				closeButton: false,
				splitAlignClass: dropdownConf.dropdown.splitAlignClass,
				text: dropdownConf.dropdown.text
			});

this._addKey(dropButtonConfig);

var splitAction = function (e, dt, button, config) {
				_dtButtons.split.action.call(dt.button(splitDiv), e, dt, button, config);

$(dt.table().node()).triggerHandler('buttons-action.dt', [
					dt.button(button),
					dt,
					button,
					config
				]);
				button.attr('aria-expanded', true);
			};

var dropButton = $(
				'<button class="' + dropdownConf.dropdown.className + ' dt-button"></button>'
			)
				.html(dropdownConf.dropdown.dropHtml)
				.on('click.dtb', function (e) {
					e.preventDefault();
					e.stopPropagation();

if (!dropButton.hasClass(dom.disabled)) {
						splitAction(e, dt, dropButton, dropButtonConfig);
					}
					if (clickBlurs) {
						dropButton.trigger('blur');
					}
				})
				.on('keypress.dtb', function (e) {
					if (e.keyCode === 13) {
						e.preventDefault();

if (!dropButton.hasClass(dom.disabled)) {
							splitAction(e, dt, dropButton, dropButtonConfig);
						}
					}
				});

if (config.split.length === 0) {
				dropButton.addClass('dtb-hide-drop');
			}

splitDiv.append(dropButton).attr(dropButtonConfig.attr);
		}

return {
			conf: config,
			node: isSplit ? splitDiv.get(0) : button.get(0),
			inserter: isSplit ? splitDiv : inserter,
			buttons: [],
			inCollection: inCollection,
			isSplit: isSplit,
			inSplit: inSplit,
			collection: null,
			textNode: textNode
		};
	},

/**
	 * Get the button object from a node (recursive)
	 * @param  {node} node Button node
	 * @param  {array} [buttons] Button array, uses base if not defined
	 * @return {object} Button object
	 * @private
	 */
	_nodeToButton: function (node, buttons) {
		if (!buttons) {
			buttons = this.s.buttons;
		}

for (var i = 0, ien = buttons.length; i < ien; i++) {
			if (buttons[i].node === node) {
				return buttons[i];
			}

if (buttons[i].buttons.length) {
				var ret = this._nodeToButton(node, buttons[i].buttons);

if (ret) {
					return ret;
				}
			}
		}
	},

/**
	 * Get container array for a button from a button node (recursive)
	 * @param  {node} node Button node
	 * @param  {array} [buttons] Button array, uses base if not defined
	 * @return {array} Button's host array
	 * @private
	 */
	_nodeToHost: function (node, buttons) {
		if (!buttons) {
			buttons = this.s.buttons;
		}

for (var i = 0, ien = buttons.length; i < ien; i++) {
			if (buttons[i].node === node) {
				return buttons;
			}

if (buttons[i].buttons.length) {
				var ret = this._nodeToHost(node, buttons[i].buttons);

if (ret) {
					return ret;
				}
			}
		}
	},

/**
	 * Handle a key press - determine if any button's key configured matches
	 * what was typed and trigger the action if so.
	 * @param  {string} character The character pressed
	 * @param  {object} e Key event that triggered this call
	 * @private
	 */
	_keypress: function (character, e) {
		// Check if this button press already activated on another instance of Buttons
		if (e._buttonsHandled) {
			return;
		}

var run = function (conf, node) {
			if (!conf.key) {
				return;
			}

if (conf.key === character) {
				e._buttonsHandled = true;
				$(node).click();
			}
			else if ($.isPlainObject(conf.key)) {
				if (conf.key.key !== character) {
					return;
				}

if (conf.key.shiftKey && !e.shiftKey) {
					return;
				}

if (conf.key.altKey && !e.altKey) {
					return;
				}

if (conf.key.ctrlKey && !e.ctrlKey) {
					return;
				}

if (conf.key.metaKey && !e.metaKey) {
					return;
				}

// Made it this far - it is good
				e._buttonsHandled = true;
				$(node).click();
			}
		};

var recurse = function (a) {
			for (var i = 0, ien = a.length; i < ien; i++) {
				run(a[i].conf, a[i].node);

if (a[i].buttons.length) {
					recurse(a[i].buttons);
				}
			}
		};

recurse(this.s.buttons);
	},

/**
	 * Remove a key from the key listener for this instance (to be used when a
	 * button is removed)
	 * @param  {object} conf Button configuration
	 * @private
	 */
	_removeKey: function (conf) {
		if (conf.key) {
			var character = $.isPlainObject(conf.key) ? conf.key.key : conf.key;

// Remove only one character, as multiple buttons could have the
			// same listening key
			var a = this.s.listenKeys.split('');
			var idx = $.inArray(character, a);
			a.splice(idx, 1);
			this.s.listenKeys = a.join('');
		}
	},

/**
	 * Resolve a button configuration
	 * @param  {string|function|object} conf Button config to resolve
	 * @return {object} Button configuration
	 * @private
	 */
	_resolveExtends: function (conf) {
		var that = this;
		var dt = this.s.dt;
		var i, ien;
		var toConfObject = function (base) {
			var loop = 0;

// Loop until we have resolved to a button configuration, or an
			// array of button configurations (which will be iterated
			// separately)
			while (!$.isPlainObject(base) && !Array.isArray(base)) {
				if (base === undefined) {
					return;
				}

if (typeof base === 'function') {
					base = base.call(that, dt, conf);

if (!base) {
						return false;
					}
				}
				else if (typeof base === 'string') {
					if (!_dtButtons[base]) {
						return { html: base };
					}

base = _dtButtons[base];
				}

loop++;
				if (loop > 30) {
					// Protect against misconfiguration killing the browser
					throw 'Buttons: Too many iterations';
				}
			}

return Array.isArray(base) ? base : $.extend({}, base);
		};

conf = toConfObject(conf);

while (conf && conf.extend) {
			// Use `toConfObject` in case the button definition being extended
			// is itself a string or a function
			if (!_dtButtons[conf.extend]) {
				throw 'Cannot extend unknown button type: ' + conf.extend;
			}

var objArray = toConfObject(_dtButtons[conf.extend]);
			if (Array.isArray(objArray)) {
				return objArray;
			}
			else if (!objArray) {
				// This is a little brutal as it might be possible to have a
				// valid button without the extend, but if there is no extend
				// then the host button would be acting in an undefined state
				return false;
			}

// Stash the current class name
			var originalClassName = objArray.className;

if (conf.config !== undefined && objArray.config !== undefined) {
				conf.config = $.extend({}, objArray.config, conf.config);
			}

conf = $.extend({}, objArray, conf);

// The extend will have overwritten the original class name if the
			// `conf` object also assigned a class, but we want to concatenate
			// them so they are list that is combined from all extended buttons
			if (originalClassName && conf.className !== originalClassName) {
				conf.className = originalClassName + ' ' + conf.className;
			}

// Although we want the `conf` object to overwrite almost all of
			// the properties of the object being extended, the `extend`
			// property should come from the object being extended
			conf.extend = objArray.extend;
		}

// Buttons to be added to a collection  -gives the ability to define
		// if buttons should be added to the start or end of a collection
		var postfixButtons = conf.postfixButtons;
		if (postfixButtons) {
			if (!conf.buttons) {
				conf.buttons = [];
			}

for (i = 0, ien = postfixButtons.length; i < ien; i++) {
				conf.buttons.push(postfixButtons[i]);
			}
		}

var prefixButtons = conf.prefixButtons;
		if (prefixButtons) {
			if (!conf.buttons) {
				conf.buttons = [];
			}

for (i = 0, ien = prefixButtons.length; i < ien; i++) {
				conf.buttons.splice(i, 0, prefixButtons[i]);
			}
		}

return conf;
	},

/**
	 * Display (and replace if there is an existing one) a popover attached to a button
	 * @param {string|node} content Content to show
	 * @param {DataTable.Api} hostButton DT API instance of the button
	 * @param {object} inOpts Options (see object below for all options)
	 */
	_popover: function (content, hostButton, inOpts, e) {
		var dt = hostButton;
		var c = this.c;
		var closed = false;
		var options = $.extend(
			{
				align: 'button-left', // button-right, dt-container, split-left, split-right
				autoClose: false,
				background: true,
				backgroundClassName: 'dt-button-background',
				closeButton: true,
				containerClassName: c.dom.collection.container.className,
				contentClassName: c.dom.collection.container.content.className,
				collectionLayout: '',
				collectionTitle: '',
				dropup: false,
				fade: 400,
				popoverTitle: '',
				rightAlignClassName: 'dt-button-right',
				tag: c.dom.collection.container.tag
			},
			inOpts
		);

var containerSelector = options.tag + '.' + options.containerClassName.replace(/ /g, '.');
		var hostNode = hostButton.node();

var close = function () {
			closed = true;

_fadeOut($(containerSelector), options.fade, function () {
				$(this).detach();
			});

$(dt.buttons('[aria-haspopup="dialog"][aria-expanded="true"]').nodes()).attr(
				'aria-expanded',
				'false'
			);

$('div.dt-button-background').off('click.dtb-collection');
			Buttons.background(false, options.backgroundClassName, options.fade, hostNode);

$(window).off('resize.resize.dtb-collection');
			$('body').off('.dtb-collection');
			dt.off('buttons-action.b-internal');
			dt.off('destroy');
		};

if (content === false) {
			close();
			return;
		}

var existingExpanded = $(
			dt.buttons('[aria-haspopup="dialog"][aria-expanded="true"]').nodes()
		);
		if (existingExpanded.length) {
			// Reuse the current position if the button that was triggered is inside an existing collection
			if (hostNode.closest(containerSelector).length) {
				hostNode = existingExpanded.eq(0);
			}

close();
		}

// Try to be smart about the layout
		var cnt = $('.dt-button', content).length;
		var mod = '';

if (cnt === 3) {
			mod = 'dtb-b3';
		}
		else if (cnt === 2) {
			mod = 'dtb-b2';
		}
		else if (cnt === 1) {
			mod = 'dtb-b1';
		}

var display = $('<' + options.tag + '/>')
			.addClass(options.containerClassName)
			.addClass(options.collectionLayout)
			.addClass(options.splitAlignClass)
			.addClass(mod)
			.css('display', 'none')
			.attr({
				'aria-modal': true,
				role: 'dialog'
			});

content = $(content)
			.addClass(options.contentClassName)
			.attr('role', 'menu')
			.appendTo(display);

hostNode.attr('aria-expanded', 'true');

if (hostNode.parents('body')[0] !== document.body) {
			hostNode = document.body.lastChild;
		}

if (options.popoverTitle) {
			display.prepend(
				'<div class="dt-button-collection-title">' + options.popoverTitle + '</div>'
			);
		}
		else if (options.collectionTitle) {
			display.prepend(
				'<div class="dt-button-collection-title">' + options.collectionTitle + '</div>'
			);
		}

if (options.closeButton) {
			display
				.prepend('<div class="dtb-popover-close">&times;</div>')
				.addClass('dtb-collection-closeable');
		}

_fadeIn(display.insertAfter(hostNode), options.fade);

var tableContainer = $(hostButton.table().container());
		var position = display.css('position');

if (options.span === 'container' || options.align === 'dt-container') {
			hostNode = hostNode.parent();
			display.css('width', tableContainer.width());
		}

// Align the popover relative to the DataTables container
		// Useful for wide popovers such as SearchPanes
		if (position === 'absolute') {
			// Align relative to the host button
			var offsetParent = $(hostNode[0].offsetParent);
			var buttonPosition = hostNode.position();
			var buttonOffset = hostNode.offset();
			var tableSizes = offsetParent.offset();
			var containerPosition = offsetParent.position();
			var computed = window.getComputedStyle(offsetParent[0]);

tableSizes.height = offsetParent.outerHeight();
			tableSizes.width = offsetParent.width() + parseFloat(computed.paddingLeft);
			tableSizes.right = tableSizes.left + tableSizes.width;
			tableSizes.bottom = tableSizes.top + tableSizes.height;

// Set the initial position so we can read height / width
			var top = buttonPosition.top + hostNode.outerHeight();
			var left = buttonPosition.left;

display.css({
				top: top,
				left: left
			});

// Get the popover position
			computed = window.getComputedStyle(display[0]);
			var popoverSizes = display.offset();

popoverSizes.height = display.outerHeight();
			popoverSizes.width = display.outerWidth();
			popoverSizes.right = popoverSizes.left + popoverSizes.width;
			popoverSizes.bottom = popoverSizes.top + popoverSizes.height;
			popoverSizes.marginTop = parseFloat(computed.marginTop);
			popoverSizes.marginBottom = parseFloat(computed.marginBottom);

// First position per the class requirements - pop up and right align
			if (options.dropup) {
				top =
					buttonPosition.top -
					popoverSizes.height -
					popoverSizes.marginTop -
					popoverSizes.marginBottom;
			}

if (options.align === 'button-right' || display.hasClass(options.rightAlignClassName)) {
				left = buttonPosition.left - popoverSizes.width + hostNode.outerWidth();
			}

// Container alignment - make sure it doesn't overflow the table container
			if (options.align === 'dt-container' || options.align === 'container') {
				if (left < buttonPosition.left) {
					left = -buttonPosition.left;
				}

if (left + popoverSizes.width > tableSizes.width) {
					left = tableSizes.width - popoverSizes.width;
				}
			}

// Window adjustment
			if (containerPosition.left + left + popoverSizes.width > $(window).width()) {
				// Overflowing the document to the right
				left = $(window).width() - popoverSizes.width - containerPosition.left;
			}

if (buttonOffset.left + left < 0) {
				// Off to the left of the document
				left = -buttonOffset.left;
			}

if (
				containerPosition.top + top + popoverSizes.height >
				$(window).height() + $(window).scrollTop()
			) {
				// Pop up if otherwise we'd need the user to scroll down
				top =
					buttonPosition.top -
					popoverSizes.height -
					popoverSizes.marginTop -
					popoverSizes.marginBottom;
			}

if (containerPosition.top + top < $(window).scrollTop()) {
				// Correction for when the top is beyond the top of the page
				top = buttonPosition.top + hostNode.outerHeight();
			}

// Calculations all done - now set it
			display.css({
				top: top,
				left: left
			});
		}
		else {
			// Fix position - centre on screen
			var position = function () {
				var half = $(window).height() / 2;

var top = display.height() / 2;
				if (top > half) {
					top = half;
				}

display.css('marginTop', top * -1);
			};

position();

$(window).on('resize.dtb-collection', function () {
				position();
			});
		}

if (options.background) {
			Buttons.background(
				true,
				options.backgroundClassName,
				options.fade,
				options.backgroundHost || hostNode
			);
		}

// This is bonkers, but if we don't have a click listener on the
		// background element, iOS Safari will ignore the body click
		// listener below. An empty function here is all that is
		// required to make it work...
		$('div.dt-button-background').on('click.dtb-collection', function () {});

if (options.autoClose) {
			setTimeout(function () {
				dt.on('buttons-action.b-internal', function (e, btn, dt, node) {
					if (node[0] === hostNode[0]) {
						return;
					}
					close();
				});
			}, 0);
		}

$(display).trigger('buttons-popover.dt');

dt.on('destroy', close);

setTimeout(function () {
			closed = false;
			$('body')
				.on('click.dtb-collection', function (e) {
					if (closed) {
						return;
					}

// andSelf is deprecated in jQ1.8, but we want 1.7 compat
					var back = $.fn.addBack ? 'addBack' : 'andSelf';
					var parent = $(e.target).parent()[0];

if (
						(!$(e.target).parents()[back]().filter(content).length &&
							!$(parent).hasClass('dt-buttons')) ||
						$(e.target).hasClass('dt-button-background')
					) {
						close();
					}
				})
				.on('keyup.dtb-collection', function (e) {
					if (e.keyCode === 27) {
						close();
					}
				})
				.on('keydown.dtb-collection', function (e) {
					// Focus trap for tab key
					var elements = $('a, button', content);
					var active = document.activeElement;

if (e.keyCode !== 9) {
						// tab
						return;
					}

if (elements.index(active) === -1) {
						// If current focus is not inside the popover
						elements.first().focus();
						e.preventDefault();
					}
					else if (e.shiftKey) {
						// Reverse tabbing order when shift key is pressed
						if (active === elements[0]) {
							elements.last().focus();
							e.preventDefault();
						}
					}
					else {
						if (active === elements.last()[0]) {
							elements.first().focus();
							e.preventDefault();
						}
					}
				});
		}, 0);
	}
});

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Statics
 */

/**
 * Show / hide a background layer behind a collection
 * @param  {boolean} Flag to indicate if the background should be shown or
 *   hidden
 * @param  {string} Class to assign to the background
 * @static
 */
Buttons.background = function (show, className, fade, insertPoint) {
	if (fade === undefined) {
		fade = 400;
	}
	if (!insertPoint) {
		insertPoint = document.body;
	}

if (show) {
		_fadeIn(
			$('<div/>').addClass(className).css('display', 'none').insertAfter(insertPoint),
			fade
		);
	}
	else {
		_fadeOut($('div.' + className), fade, function () {
			$(this).removeClass(className).remove();
		});
	}
};

/**
 * Instance selector - select Buttons instances based on an instance selector
 * value from the buttons assigned to a DataTable. This is only useful if
 * multiple instances are attached to a DataTable.
 * @param  {string|int|array} Instance selector - see `instance-selector`
 *   documentation on the DataTables site
 * @param  {array} Button instance array that was attached to the DataTables
 *   settings object
 * @return {array} Buttons instances
 * @static
 */
Buttons.instanceSelector = function (group, buttons) {
	if (group === undefined || group === null) {
		return $.map(buttons, function (v) {
			return v.inst;
		});
	}

var ret = [];
	var names = $.map(buttons, function (v) {
		return v.name;
	});

// Flatten the group selector into an array of single options
	var process = function (input) {
		if (Array.isArray(input)) {
			for (var i = 0, ien = input.length; i < ien; i++) {
				process(input[i]);
			}
			return;
		}

if (typeof input === 'string') {
			if (input.indexOf(',') !== -1) {
				// String selector, list of names
				process(input.split(','));
			}
			else {
				// String selector individual name
				var idx = $.inArray(input.trim(), names);

if (idx !== -1) {
					ret.push(buttons[idx].inst);
				}
			}
		}
		else if (typeof input === 'number') {
			// Index selector
			ret.push(buttons[input].inst);
		}
		else if (typeof input === 'object') {
			// Actual instance selector
			ret.push(input);
		}
	};

process(group);

return ret;
};

/**
 * Button selector - select one or more buttons from a selector input so some
 * operation can be performed on them.
 * @param  {array} Button instances array that the selector should operate on
 * @param  {string|int|node|jQuery|array} Button selector - see
 *   `button-selector` documentation on the DataTables site
 * @return {array} Array of objects containing `inst` and `idx` properties of
 *   the selected buttons so you know which instance each button belongs to.
 * @static
 */
Buttons.buttonSelector = function (insts, selector) {
	var ret = [];
	var nodeBuilder = function (a, buttons, baseIdx) {
		var button;
		var idx;

for (var i = 0, ien = buttons.length; i < ien; i++) {
			button = buttons[i];

if (button) {
				idx = baseIdx !== undefined ? baseIdx + i : i + '';

a.push({
					node: button.node,
					name: button.conf.name,
					idx: idx
				});

if (button.buttons) {
					nodeBuilder(a, button.buttons, idx + '-');
				}
			}
		}
	};

var run = function (selector, inst) {
		var i, ien;
		var buttons = [];
		nodeBuilder(buttons, inst.s.buttons);

var nodes = $.map(buttons, function (v) {
			return v.node;
		});

if (Array.isArray(selector) || selector instanceof $) {
			for (i = 0, ien = selector.length; i < ien; i++) {
				run(selector[i], inst);
			}
			return;
		}

if (selector === null || selector === undefined || selector === '*') {
			// Select all
			for (i = 0, ien = buttons.length; i < ien; i++) {
				ret.push({
					inst: inst,
					node: buttons[i].node
				});
			}
		}
		else if (typeof selector === 'number') {
			// Main button index selector
			if (inst.s.buttons[selector]) {
				ret.push({
					inst: inst,
					node: inst.s.buttons[selector].node
				});
			}
		}
		else if (typeof selector === 'string') {
			if (selector.indexOf(',') !== -1) {
				// Split
				var a = selector.split(',');

for (i = 0, ien = a.length; i < ien; i++) {
					run(a[i].trim(), inst);
				}
			}
			else if (selector.match(/^\d+(\-\d+)*$/)) {
				// Sub-button index selector
				var indexes = $.map(buttons, function (v) {
					return v.idx;
				});

ret.push({
					inst: inst,
					node: buttons[$.inArray(selector, indexes)].node
				});
			}
			else if (selector.indexOf(':name') !== -1) {
				// Button name selector
				var name = selector.replace(':name', '');

for (i = 0, ien = buttons.length; i < ien; i++) {
					if (buttons[i].name === name) {
						ret.push({
							inst: inst,
							node: buttons[i].node
						});
					}
				}
			}
			else {
				// jQuery selector on the nodes
				$(nodes)
					.filter(selector)
					.each(function () {
						ret.push({
							inst: inst,
							node: this
						});
					});
			}
		}
		else if (typeof selector === 'object' && selector.nodeName) {
			// Node selector
			var idx = $.inArray(selector, nodes);

if (idx !== -1) {
				ret.push({
					inst: inst,
					node: nodes[idx]
				});
			}
		}
	};

for (var i = 0, ien = insts.length; i < ien; i++) {
		var inst = insts[i];

run(selector, inst);
	}

return ret;
};

/**
 * Default function used for formatting output data.
 * @param {*} str Data to strip
 */
Buttons.stripData = function (str, config) {
	if (typeof str !== 'string') {
		return str;
	}

// Always remove script tags
	str = str.replace(/<script\b[^<]*(?:(?!<\/script>)<[^<]*)*<\/script>/gi, '');

// Always remove comments
	str = str.replace(/<!\-\-.*?\-\->/g, '');

if (!config || config.stripHtml) {
		str = str.replace(/<[^>]*>/g, '');
	}

if (!config || config.trim) {
		str = str.replace(/^\s+|\s+$/g, '');
	}

if (!config || config.stripNewlines) {
		str = str.replace(/\n/g, ' ');
	}

if (!config || config.decodeEntities) {
		if (_entityDecoder) {
			str = _entityDecoder(str);
		}
		else {
			_exportTextarea.innerHTML = str;
			str = _exportTextarea.value;
		}
	}

return str;
};

/**
 * Provide a custom entity decoding function - e.g. a regex one, which can be
 * much faster than the built in DOM option, but also larger code size.
 * @param {function} fn
 */
Buttons.entityDecoder = function (fn) {
	_entityDecoder = fn;
}

/**
 * Buttons defaults. For full documentation, please refer to the docs/option
 * directory or the DataTables site.
 * @type {Object}
 * @static
 */
Buttons.defaults = {
	buttons: ['copy', 'excel', 'csv', 'pdf', 'print'],
	name: 'main',
	tabIndex: 0,
	dom: {
		container: {
			tag: 'div',
			className: 'dt-buttons'
		},
		collection: {
			action: {
				// action button
				dropHtml: '<span class="dt-button-down-arrow">&#x25BC;</span>'
			},
			container: {
				// The element used for the dropdown
				className: 'dt-button-collection',
				content: {
					className: '',
					tag: 'div'
				},
				tag: 'div'
			}
			// optionally
			// , button: IButton - buttons inside the collection container
			// , split: ISplit - splits inside the collection container
		},
		button: {
			tag: 'button',
			className: 'dt-button',
			active: 'dt-button-active', // class name
			disabled: 'disabled', // class name
			spacer: {
				className: 'dt-button-spacer',
				tag: 'span'
			},
			liner: {
				tag: 'span',
				className: ''
			}
		},
		split: {
			action: {
				// action button
				className: 'dt-button-split-drop-button dt-button',
				tag: 'button'
			},
			dropdown: {
				// button to trigger the dropdown
				align: 'split-right',
				className: 'dt-button-split-drop',
				dropHtml: '<span class="dt-button-down-arrow">&#x25BC;</span>',
				splitAlignClass: 'dt-button-split-left',
				tag: 'button'
			},
			wrapper: {
				// wrap around both
				className: 'dt-button-split',
				tag: 'div'
			}
		}
	}
};

/**
 * Version information
 * @type {string}
 * @static
 */
Buttons.version = '2.4.2';

$.extend(_dtButtons, {
	collection: {
		text: function (dt) {
			return dt.i18n('buttons.collection', 'Collection');
		},
		className: 'buttons-collection',
		closeButton: false,
		init: function (dt, button, config) {
			button.attr('aria-expanded', false);
		},
		action: function (e, dt, button, config) {
			if (config._collection.parents('body').length) {
				this.popover(false, config);
			}
			else {
				this.popover(config._collection, config);
			}

// When activated using a key - auto focus on the
			// first item in the popover
			if (e.type === 'keypress') {
				$('a, button', config._collection).eq(0).focus();
			}
		},
		attr: {
			'aria-haspopup': 'dialog'
		}
		// Also the popover options, defined in Buttons.popover
	},
	split: {
		text: function (dt) {
			return dt.i18n('buttons.split', 'Split');
		},
		className: 'buttons-split',
		closeButton: false,
		init: function (dt, button, config) {
			return button.attr('aria-expanded', false);
		},
		action: function (e, dt, button, config) {
			this.popover(config._collection, config);
		},
		attr: {
			'aria-haspopup': 'dialog'
		}
		// Also the popover options, defined in Buttons.popover
	},
	copy: function (dt, conf) {
		if (_dtButtons.copyHtml5) {
			return 'copyHtml5';
		}
	},
	csv: function (dt, conf) {
		if (_dtButtons.csvHtml5 && _dtButtons.csvHtml5.available(dt, conf)) {
			return 'csvHtml5';
		}
	},
	excel: function (dt, conf) {
		if (_dtButtons.excelHtml5 && _dtButtons.excelHtml5.available(dt, conf)) {
			return 'excelHtml5';
		}
	},
	pdf: function (dt, conf) {
		if (_dtButtons.pdfHtml5 && _dtButtons.pdfHtml5.available(dt, conf)) {
			return 'pdfHtml5';
		}
	},
	pageLength: function (dt) {
		var lengthMenu = dt.settings()[0].aLengthMenu;
		var vals = [];
		var lang = [];
		var text = function (dt) {
			return dt.i18n(
				'buttons.pageLength',
				{
					'-1': 'Show all rows',
					_: 'Show %d rows'
				},
				dt.page.len()
			);
		};

// Support for DataTables 1.x 2D array
		if (Array.isArray(lengthMenu[0])) {
			vals = lengthMenu[0];
			lang = lengthMenu[1];
		}
		else {
			for (var i = 0; i < lengthMenu.length; i++) {
				var option = lengthMenu[i];

// Support for DataTables 2 object in the array
				if ($.isPlainObject(option)) {
					vals.push(option.value);
					lang.push(option.label);
				}
				else {
					vals.push(option);
					lang.push(option);
				}
			}
		}

return {
			extend: 'collection',
			text: text,
			className: 'buttons-page-length',
			autoClose: true,
			buttons: $.map(vals, function (val, i) {
				return {
					text: lang[i],
					className: 'button-page-length',
					action: function (e, dt) {
						dt.page.len(val).draw();
					},
					init: function (dt, node, conf) {
						var that = this;
						var fn = function () {
							that.active(dt.page.len() === val);
						};

dt.on('length.dt' + conf.namespace, fn);
						fn();
					},
					destroy: function (dt, node, conf) {
						dt.off('length.dt' + conf.namespace);
					}
				};
			}),
			init: function (dt, node, conf) {
				var that = this;
				dt.on('length.dt' + conf.namespace, function () {
					that.text(conf.text);
				});
			},
			destroy: function (dt, node, conf) {
				dt.off('length.dt' + conf.namespace);
			}
		};
	},
	spacer: {
		style: 'empty',
		spacer: true,
		text: function (dt) {
			return dt.i18n('buttons.spacer', '');
		}
	}
});

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * DataTables API
 *
 * For complete documentation, please refer to the docs/api directory or the
 * DataTables site
 */

// Buttons group and individual button selector
DataTable.Api.register('buttons()', function (group, selector) {
	// Argument shifting
	if (selector === undefined) {
		selector = group;
		group = undefined;
	}

this.selector.buttonGroup = group;

var res = this.iterator(
		true,
		'table',
		function (ctx) {
			if (ctx._buttons) {
				return Buttons.buttonSelector(
					Buttons.instanceSelector(group, ctx._buttons),
					selector
				);
			}
		},
		true
	);

res._groupSelector = group;
	return res;
});

// Individual button selector
DataTable.Api.register('button()', function (group, selector) {
	// just run buttons() and truncate
	var buttons = this.buttons(group, selector);

if (buttons.length > 1) {
		buttons.splice(1, buttons.length);
	}

return buttons;
});

// Active buttons
DataTable.Api.registerPlural('buttons().active()', 'button().active()', function (flag) {
	if (flag === undefined) {
		return this.map(function (set) {
			return set.inst.active(set.node);
		});
	}

return this.each(function (set) {
		set.inst.active(set.node, flag);
	});
});

// Get / set button action
DataTable.Api.registerPlural('buttons().action()', 'button().action()', function (action) {
	if (action === undefined) {
		return this.map(function (set) {
			return set.inst.action(set.node);
		});
	}

return this.each(function (set) {
		set.inst.action(set.node, action);
	});
});

// Collection control
DataTable.Api.registerPlural(
	'buttons().collectionRebuild()',
	'button().collectionRebuild()',
	function (buttons) {
		return this.each(function (set) {
			for (var i = 0; i < buttons.length; i++) {
				if (typeof buttons[i] === 'object') {
					buttons[i].parentConf = set;
				}
			}
			set.inst.collectionRebuild(set.node, buttons);
		});
	}
);

// Enable / disable buttons
DataTable.Api.register(['buttons().enable()', 'button().enable()'], function (flag) {
	return this.each(function (set) {
		set.inst.enable(set.node, flag);
	});
});

// Disable buttons
DataTable.Api.register(['buttons().disable()', 'button().disable()'], function () {
	return this.each(function (set) {
		set.inst.disable(set.node);
	});
});

// Button index
DataTable.Api.register('button().index()', function () {
	var idx = null;

this.each(function (set) {
		var res = set.inst.index(set.node);

if (res !== null) {
			idx = res;
		}
	});

return idx;
});

// Get button nodes
DataTable.Api.registerPlural('buttons().nodes()', 'button().node()', function () {
	var jq = $();

// jQuery will automatically reduce duplicates to a single entry
	$(
		this.each(function (set) {
			jq = jq.add(set.inst.node(set.node));
		})
	);

return jq;
});

// Get / set button processing state
DataTable.Api.registerPlural('buttons().processing()', 'button().processing()', function (flag) {
	if (flag === undefined) {
		return this.map(function (set) {
			return set.inst.processing(set.node);
		});
	}

return this.each(function (set) {
		set.inst.processing(set.node, flag);
	});
});

// Get / set button text (i.e. the button labels)
DataTable.Api.registerPlural('buttons().text()', 'button().text()', function (label) {
	if (label === undefined) {
		return this.map(function (set) {
			return set.inst.text(set.node);
		});
	}

return this.each(function (set) {
		set.inst.text(set.node, label);
	});
});

// Trigger a button's action
DataTable.Api.registerPlural('buttons().trigger()', 'button().trigger()', function () {
	return this.each(function (set) {
		set.inst.node(set.node).trigger('click');
	});
});

// Button resolver to the popover
DataTable.Api.register('button().popover()', function (content, options) {
	return this.map(function (set) {
		return set.inst._popover(content, this.button(this[0].node), options);
	});
});

// Get the container elements
DataTable.Api.register('buttons().containers()', function () {
	var jq = $();
	var groupSelector = this._groupSelector;

// We need to use the group selector directly, since if there are no buttons
	// the result set will be empty
	this.iterator(true, 'table', function (ctx) {
		if (ctx._buttons) {
			var insts = Buttons.instanceSelector(groupSelector, ctx._buttons);

for (var i = 0, ien = insts.length; i < ien; i++) {
				jq = jq.add(insts[i].container());
			}
		}
	});

return jq;
});

DataTable.Api.register('buttons().container()', function () {
	// API level of nesting is `buttons()` so we can zip into the containers method
	return this.containers().eq(0);
});

// Add a new button
DataTable.Api.register('button().add()', function (idx, conf, draw) {
	var ctx = this.context;

// Don't use `this` as it could be empty - select the instances directly
	if (ctx.length) {
		var inst = Buttons.instanceSelector(this._groupSelector, ctx[0]._buttons);

if (inst.length) {
			inst[0].add(conf, idx, draw);
		}
	}

return this.button(this._groupSelector, idx);
});

// Destroy the button sets selected
DataTable.Api.register('buttons().destroy()', function () {
	this.pluck('inst')
		.unique()
		.each(function (inst) {
			inst.destroy();
		});

return this;
});

// Remove a button
DataTable.Api.registerPlural('buttons().remove()', 'buttons().remove()', function () {
	this.each(function (set) {
		set.inst.remove(set.node);
	});

return this;
});

// Information box that can be used by buttons
var _infoTimer;
DataTable.Api.register('buttons.info()', function (title, message, time) {
	var that = this;

if (title === false) {
		this.off('destroy.btn-info');
		_fadeOut($('#datatables_buttons_info'), 400, function () {
			$(this).remove();
		});
		clearTimeout(_infoTimer);
		_infoTimer = null;

return this;
	}

if (_infoTimer) {
		clearTimeout(_infoTimer);
	}

if ($('#datatables_buttons_info').length) {
		$('#datatables_buttons_info').remove();
	}

title = title ? '<h2>' + title + '</h2>' : '';

_fadeIn(
		$('<div id="datatables_buttons_info" class="dt-button-info"/>')
			.html(title)
			.append($('<div/>')[typeof message === 'string' ? 'html' : 'append'](message))
			.css('display', 'none')
			.appendTo('body')
	);

if (time !== undefined && time !== 0) {
		_infoTimer = setTimeout(function () {
			that.buttons.info(false);
		}, time);
	}

this.on('destroy.btn-info', function () {
		that.buttons.info(false);
	});

return this;
});

// Get data from the table for export - this is common to a number of plug-in
// buttons so it is included in the Buttons core library
DataTable.Api.register('buttons.exportData()', function (options) {
	if (this.context.length) {
		return _exportData(new DataTable.Api(this.context[0]), options);
	}
});

// Get information about the export that is common to many of the export data
// types (DRY)
DataTable.Api.register('buttons.exportInfo()', function (conf) {
	if (!conf) {
		conf = {};
	}

return {
		filename: _filename(conf),
		title: _title(conf),
		messageTop: _message(this, conf.message || conf.messageTop, 'top'),
		messageBottom: _message(this, conf.messageBottom, 'bottom')
	};
});

/**
 * Get the file name for an exported file.
 *
 * @param {object}	config Button configuration
 * @param {boolean} incExtension Include the file name extension
 */
var _filename = function (config) {
	// Backwards compatibility
	var filename =
		config.filename === '*' &&
		config.title !== '*' &&
		config.title !== undefined &&
		config.title !== null &&
		config.title !== ''
			? config.title
			: config.filename;

if (typeof filename === 'function') {
		filename = filename();
	}

if (filename === undefined || filename === null) {
		return null;
	}

if (filename.indexOf('*') !== -1) {
		filename = filename.replace('*', $('head > title').text()).trim();
	}

// Strip characters which the OS will object to
	filename = filename.replace(/[^a-zA-Z0-9_\u00A1-\uFFFF\.,\-_ !]/g, '');

var extension = _stringOrFunction(config.extension);
	if (!extension) {
		extension = '';
	}

return filename + extension;
};

/**
 * Simply utility method to allow parameters to be given as a function
 *
 * @param {undefined|string|function} option Option
 * @return {null|string} Resolved value
 */
var _stringOrFunction = function (option) {
	if (option === null || option === undefined) {
		return null;
	}
	else if (typeof option === 'function') {
		return option();
	}
	return option;
};

/**
 * Get the title for an exported file.
 *
 * @param {object} config	Button configuration
 */
var _title = function (config) {
	var title = _stringOrFunction(config.title);

return title === null
		? null
		: title.indexOf('*') !== -1
		? title.replace('*', $('head > title').text() || 'Exported data')
		: title;
};

var _message = function (dt, option, position) {
	var message = _stringOrFunction(option);
	if (message === null) {
		return null;
	}

var caption = $('caption', dt.table().container()).eq(0);
	if (message === '*') {
		var side = caption.css('caption-side');
		if (side !== position) {
			return null;
		}

return caption.length ? caption.text() : '';
	}

return message;
};

var header = dt
		.columns(config.columns)
		.indexes()
		.map(function (idx) {
			var el = dt.column(idx).header();
			return config.format.header(el.innerHTML, idx, el);
		})
		.toArray();

var footer = dt.table().footer()
		? dt
				.columns(config.columns)
				.indexes()
				.map(function (idx) {
					var el = dt.column(idx).footer();
					return config.format.footer(el ? el.innerHTML : '', idx, el);
				})
				.toArray()
		: null;

// If Select is available on this table, and any rows are selected, limit the export
	// to the selected rows. If no rows are selected, all rows will be exported. Specify
	// a `selected` modifier to control directly.
	var modifier = $.extend({}, config.modifier);
	if (dt.select && typeof dt.select.info === 'function' && modifier.selected === undefined) {
		if (dt.rows(config.rows, $.extend({ selected: true }, modifier)).any()) {
			$.extend(modifier, { selected: true });
		}
	}

var rowIndexes = dt.rows(config.rows, modifier).indexes().toArray();
	var selectedCells = dt.cells(rowIndexes, config.columns);
	var cells = selectedCells.render(config.orthogonal).toArray();
	var cellNodes = selectedCells.nodes().toArray();

var columns = header.length;
	var rows = columns > 0 ? cells.length / columns : 0;
	var body = [];
	var cellCounter = 0;

for (var i = 0, ien = rows; i < ien; i++) {
		var row = [columns];

for (var j = 0; j < columns; j++) {
			row[j] = config.format.body(cells[cellCounter], i, j, cellNodes[cellCounter]);
			cellCounter++;
		}

body[i] = row;
	}

var data = {
		header: header,
		footer: footer,
		body: body
	};

if (config.customizeData) {
		config.customizeData(data);
	}

return data;
};

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * DataTables interface
 */

// Attach to DataTables objects for global access
$.fn.dataTable.Buttons = Buttons;
$.fn.DataTable.Buttons = Buttons;

// DataTables creation - check if the buttons have been defined for this table,
// they will have been if the `B` option was used in `dom`, otherwise we should
// create the buttons instance here so they can be inserted into the document
// using the API. Listen for `init` for compatibility with pre 1.10.10, but to
// be removed in future.
$(document).on('init.dt plugin-init.dt', function (e, settings) {
	if (e.namespace !== 'dt') {
		return;
	}

var opts = settings.oInit.buttons || DataTable.defaults.buttons;

if (opts && !settings._buttons) {
		new Buttons(settings, opts).container();
	}
});

function _init(settings, options) {
	var api = new DataTable.Api(settings);
	var opts = options ? options : api.init().buttons || DataTable.defaults.buttons;

return new Buttons(api, opts).container();
}

// DataTables `dom` feature option
DataTable.ext.feature.push({
	fnInit: _init,
	cFeature: 'B'
});

// DataTables 2 layout feature
if (DataTable.ext.features) {
	DataTable.ext.features.register('buttons', _init);
}

return DataTable;
}));