/*!

 * jQuery UI Button 1.10.3

 * http://jqueryui.com

 *

 * Copyright 2013 jQuery Foundation and other contributors

 * Released under the MIT license.

 * http://jquery.org/license

 *

 * http://api.jqueryui.com/button/

 *

 * Depends:

 *	jquery.ui.core.js

 *	jquery.ui.widget.js

 */

(function( $, undefined ) {

var lastActive, startXPos, startYPos, clickDragged,

	baseClasses = "ui-button ui-widget ui-state-default ui-corner-all",

	stateClasses = "ui-state-hover ui-state-active ",

	typeClasses = "ui-button-icons-only ui-button-icon-only ui-button-text-icons ui-button-text-icon-primary ui-button-text-icon-secondary ui-button-text-only",

	formResetHandler = function() {

		var form = $( this );

		setTimeout(function() {

			form.find( ":ui-button" ).button( "refresh" );

		}, 1 );

	},

	radioGroup = function( radio ) {

		var name = radio.name,

			form = radio.form,

			radios = $( [] );

		if ( name ) {

			name = name.replace( /'/g, "\\'" );

			if ( form ) {

				radios = $( form ).find( "[name='" + name + "']" );

			} else {

				radios = $( "[name='" + name + "']", radio.ownerDocument )

					.filter(function() {

						return !this.form;

					});

			}

		}

		return radios;

	};

$.widget( "ui.button", {

	version: "1.10.3",

	defaultElement: "<button>",

	options: {

		disabled: null,

		text: true,

		label: null,

		icons: {

			primary: null,

			secondary: null

		}

	},

	_create: function() {

		this.element.closest( "form" )

			.unbind( "reset" + this.eventNamespace )

			.bind( "reset" + this.eventNamespace, formResetHandler );

		if ( typeof this.options.disabled !== "boolean" ) {

			this.options.disabled = !!this.element.prop( "disabled" );

		} else {

			this.element.prop( "disabled", this.options.disabled );

		}

		this._determineButtonType();

		this.hasTitle = !!this.buttonElement.attr( "title" );

		var that = this,

			options = this.options,

			toggleButton = this.type === "checkbox" || this.type === "radio",

			activeClass = !toggleButton ? "ui-state-active" : "",

			focusClass = "ui-state-focus";

		if ( options.label === null ) {

			options.label = (this.type === "input" ? this.buttonElement.val() : this.buttonElement.html());

		}

		this._hoverable( this.buttonElement );

		this.buttonElement

			.addClass( baseClasses )

			.attr( "role", "button" )

			.bind( "mouseenter" + this.eventNamespace, function() {

				if ( options.disabled ) {

					return;

				}

				if ( this === lastActive ) {

					$( this ).addClass( "ui-state-active" );

				}

			})

			.bind( "mouseleave" + this.eventNamespace, function() {

				if ( options.disabled ) {

					return;

				}

				$( this ).removeClass( activeClass );

			})

			.bind( "click" + this.eventNamespace, function( event ) {

				if ( options.disabled ) {

					event.preventDefault();

					event.stopImmediatePropagation();

				}

			});

		this.element

			.bind( "focus" + this.eventNamespace, function() {

				// no need to check disabled, focus won't be triggered anyway

				that.buttonElement.addClass( focusClass );

			})

			.bind( "blur" + this.eventNamespace, function() {

				that.buttonElement.removeClass( focusClass );

			});

		if ( toggleButton ) {

			this.element.bind( "change" + this.eventNamespace, function() {

				if ( clickDragged ) {

					return;

				}

				that.refresh();

			});

			// if mouse moves between mousedown and mouseup (drag) set clickDragged flag

			// prevents issue where button state changes but checkbox/radio checked state

			// does not in Firefox (see ticket #6970)

			this.buttonElement

				.bind( "mousedown" + this.eventNamespace, function( event ) {

					if ( options.disabled ) {

						return;

					}

					clickDragged = false;

					startXPos = event.pageX;

					startYPos = event.pageY;

				})

				.bind( "mouseup" + this.eventNamespace, function( event ) {

					if ( options.disabled ) {

						return;

					}

					if ( startXPos !== event.pageX || startYPos !== event.pageY ) {

						clickDragged = true;

					}

			});

		}

		if ( this.type === "checkbox" ) {

			this.buttonElement.bind( "click" + this.eventNamespace, function() {

				if ( options.disabled || clickDragged ) {

					return false;

				}

			});

		} else if ( this.type === "radio" ) {

			this.buttonElement.bind( "click" + this.eventNamespace, function() {

				if ( options.disabled || clickDragged ) {

					return false;

				}

				$( this ).addClass( "ui-state-active" );

				that.buttonElement.attr( "aria-pressed", "true" );

				var radio = that.element[ 0 ];

				radioGroup( radio )

					.not( radio )

					.map(function() {

						return $( this ).button( "widget" )[ 0 ];

					})

					.removeClass( "ui-state-active" )

					.attr( "aria-pressed", "false" );

			});

		} else {

			this.buttonElement

				.bind( "mousedown" + this.eventNamespace, function() {

					if ( options.disabled ) {

						return false;

					}

					$( this ).addClass( "ui-state-active" );

					lastActive = this;

					that.document.one( "mouseup", function() {

						lastActive = null;

					});

				})

				.bind( "mouseup" + this.eventNamespace, function() {

					if ( options.disabled ) {

						return false;

					}

					$( this ).removeClass( "ui-state-active" );

				})

				.bind( "keydown" + this.eventNamespace, function(event) {

					if ( options.disabled ) {

						return false;

					}

					if ( event.keyCode === $.ui.keyCode.SPACE || event.keyCode === $.ui.keyCode.ENTER ) {

						$( this ).addClass( "ui-state-active" );

					}

				})

				// see #8559, we bind to blur here in case the button element loses

				// focus between keydown and keyup, it would be left in an "active" state

				.bind( "keyup" + this.eventNamespace + " blur" + this.eventNamespace, function() {

					$( this ).removeClass( "ui-state-active" );

				});

			if ( this.buttonElement.is("a") ) {

				this.buttonElement.keyup(function(event) {

					if ( event.keyCode === $.ui.keyCode.SPACE ) {

						// TODO pass through original event correctly (just as 2nd argument doesn't work)

						$( this ).click();

					}

				});

			}

		}

		// TODO: pull out $.Widget's handling for the disabled option into

		// $.Widget.prototype._setOptionDisabled so it's easy to proxy and can

		// be overridden by individual plugins

		this._setOption( "disabled", options.disabled );

		this._resetButton();

	},

	_determineButtonType: function() {

		var ancestor, labelSelector, checked;

		if ( this.element.is("[type=checkbox]") ) {

			this.type = "checkbox";

		} else if ( this.element.is("[type=radio]") ) {

			this.type = "radio";

		} else if ( this.element.is("input") ) {

			this.type = "input";

		} else {

			this.type = "button";

		}

		if ( this.type === "checkbox" || this.type === "radio" ) {

			// we don't search against the document in case the element

			// is disconnected from the DOM

			ancestor = this.element.parents().last();

			labelSelector = "label[for='" + this.element.attr("id") + "']";

			this.buttonElement = ancestor.find( labelSelector );

			if ( !this.buttonElement.length ) {

				ancestor = ancestor.length ? ancestor.siblings() : this.element.siblings();

				this.buttonElement = ancestor.filter( labelSelector );

				if ( !this.buttonElement.length ) {

					this.buttonElement = ancestor.find( labelSelector );

				}

			}

			this.element.addClass( "ui-helper-hidden-accessible" );

			checked = this.element.is( ":checked" );

			if ( checked ) {

				this.buttonElement.addClass( "ui-state-active" );

			}

			this.buttonElement.prop( "aria-pressed", checked );

		} else {

			this.buttonElement = this.element;

		}

	},

	widget: function() {

		return this.buttonElement;

	},

	_destroy: function() {

		this.element

			.removeClass( "ui-helper-hidden-accessible" );

		this.buttonElement

			.removeClass( baseClasses + " " + stateClasses + " " + typeClasses )

			.removeAttr( "role" )

			.removeAttr( "aria-pressed" )

			.html( this.buttonElement.find(".ui-button-text").html() );

		if ( !this.hasTitle ) {

			this.buttonElement.removeAttr( "title" );

		}

	},

	_setOption: function( key, value ) {

		this._super( key, value );

		if ( key === "disabled" ) {

			if ( value ) {

				this.element.prop( "disabled", true );

			} else {

				this.element.prop( "disabled", false );

			}

			return;

		}

		this._resetButton();

	},

	refresh: function() {

		//See #8237 & #8828

		var isDisabled = this.element.is( "input, button" ) ? this.element.is( ":disabled" ) : this.element.hasClass( "ui-button-disabled" );

		if ( isDisabled !== this.options.disabled ) {

			this._setOption( "disabled", isDisabled );

		}

		if ( this.type === "radio" ) {

			radioGroup( this.element[0] ).each(function() {

				if ( $( this ).is( ":checked" ) ) {

					$( this ).button( "widget" )

						.addClass( "ui-state-active" )

						.attr( "aria-pressed", "true" );

				} else {

					$( this ).button( "widget" )

						.removeClass( "ui-state-active" )

						.attr( "aria-pressed", "false" );

				}

			});

		} else if ( this.type === "checkbox" ) {

			if ( this.element.is( ":checked" ) ) {

				this.buttonElement

					.addClass( "ui-state-active" )

					.attr( "aria-pressed", "true" );

			} else {

				this.buttonElement

					.removeClass( "ui-state-active" )

					.attr( "aria-pressed", "false" );

			}

		}

	},

	_resetButton: function() {

		if ( this.type === "input" ) {

			if ( this.options.label ) {

				this.element.val( this.options.label );

			}

			return;

		}

		var buttonElement = this.buttonElement.removeClass( typeClasses ),

			buttonText = $( "<span></span>", this.document[0] )

				.addClass( "ui-button-text" )

				.html( this.options.label )

				.appendTo( buttonElement.empty() )

				.text(),

			icons = this.options.icons,

			multipleIcons = icons.primary && icons.secondary,

			buttonClasses = [];

		if ( icons.primary || icons.secondary ) {

			if ( this.options.text ) {

				buttonClasses.push( "ui-button-text-icon" + ( multipleIcons ? "s" : ( icons.primary ? "-primary" : "-secondary" ) ) );

			}

			if ( icons.primary ) {