/*!
 * jQuery UI Button 1.13.1
 * http://jqueryui.com
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 */

//>>label: Button
//>>group: Widgets
//>>description: Enhances a form with themeable buttons.
//>>docs: http://api.jqueryui.com/button/
//>>demos: http://jqueryui.com/button/
//>>css.structure: ../../themes/base/core.css
//>>css.structure: ../../themes/base/button.css
//>>css.theme: ../../themes/base/theme.css

( function( factory ) {
"use strict";

if ( typeof define === "function" && define.amd ) {

// AMD. Register as an anonymous module.
define( [
"jquery",

// These are only for backcompat
// TODO: Remove after 1.12
"./controlgroup",
"./checkboxradio",

"./core"
], factory );
} else {

// Browser globals
factory( jQuery );
}
} )( function( $ ) {
"use strict";

$.widget( "ui.button", {
version: "1.13.1",
defaultElement: "<button>",
options: {
classes: {
"ui-button": "ui-corner-all"
},
disabled: null,
icon: null,
iconPosition: "beginning",
label: null,
showLabel: true
},

_getCreateOptions: function() {
var disabled,

// This is to support cases like in jQuery Mobile where the base widget does have
// an implementation of _getCreateOptions
options = this._super() || {};

this.isInput = this.element.is( "input" );

disabled = this.element[ 0 ].disabled;
if ( disabled != null ) {
options.disabled = disabled;
}

this.originalLabel = this.isInput ? this.element.val() : this.element.html();
if ( this.originalLabel ) {
options.label = this.originalLabel;
}

return options;
},

_create: function() {
if ( !this.option.showLabel & !this.options.icon ) {
this.options.showLabel = true;
}

// We have to check the option again here even though we did in _getCreateOptions,
// because null may have been passed on init which would override what was set in
// _getCreateOptions
if ( this.options.disabled == null ) {
this.options.disabled = this.element[ 0 ].disabled || false;
}

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

// Check to see if the label needs to be set or if its already correct
if ( this.options.label && this.options.label !== this.originalLabel ) {
if ( this.isInput ) {
this.element.val( this.options.label );
} else {
this.element.html( this.options.label );
}
}
this._addClass( "ui-button", "ui-widget" );
this._setOption( "disabled", this.options.disabled );
this._enhance();

if ( this.element.is( "a" ) ) {
this._on( {
"keyup": function( event ) {
if ( event.keyCode === $.ui.keyCode.SPACE ) {
event.preventDefault();

// Support: PhantomJS <= 1.9, IE 8 Only
// If a native click is available use it so we actually cause navigation
// otherwise just trigger a click event
if ( this.element[ 0 ].click ) {
this.element[ 0 ].click();
} else {
this.element.trigger( "click" );
}
}
}
} );
}
},

_enhance: function() {
if ( !this.element.is( "button" ) ) {
this.element.attr( "role", "button" );
}

if ( this.options.icon ) {
this._updateIcon( "icon", this.options.icon );
this._updateTooltip();
}
},

_updateTooltip: function() {
this.title = this.element.attr( "title" );

if ( !this.options.showLabel && !this.title ) {
this.element.attr( "title", this.options.label );
}
},

_updateIcon: function( option, value ) {
var icon = option !== "iconPosition",
position = icon ? this.options.iconPosition : value,
displayBlock = position === "top" || position === "bottom";

// Create icon
if ( !this.icon ) {
this.icon = $( "<span>" );

this._addClass( this.icon, "ui-button-icon", "ui-icon" );

if ( !this.options.showLabel ) {
this._addClass( "ui-button-icon-only" );
}
} else if ( icon ) {

// If we are updating the icon remove the old icon class
this._removeClass( this.icon, null, this.options.icon );
}

// If we are updating the icon add the new icon class
if ( icon ) {
this._addClass( this.icon, null, value );
}

this._attachIcon( position );

// If the icon is on top or bottom we need to add the ui-widget-icon-block class and remove
// the iconSpace if there is one.
if ( displayBlock ) {
this._addClass( this.icon, null, "ui-widget-icon-block" );
if ( this.iconSpace ) {
this.iconSpace.remove();
}
} else {

// Position is beginning or end so remove the ui-widget-icon-block class and add the
// space if it does not exist
if ( !this.iconSpace ) {
this.iconSpace = $( "<span> </span>" );
this._addClass( this.iconSpace, "ui-button-icon-space" );
}
this._removeClass( this.icon, null, "ui-wiget-icon-block" );
this._attachIconSpace( position );
}
},

_destroy: function() {
this.element.removeAttr( "role" );

if ( this.icon ) {
this.icon.remove();
}
if ( this.iconSpace ) {
this.iconSpace.remove();
}
if ( !this.hasTitle ) {
this.element.removeAttr( "title" );
}
},

_attachIconSpace: function( iconPosition ) {
this.icon[ /^(?:end|bottom)/.test( iconPosition ) ? "before" : "after" ]( this.iconSpace );
},

_attachIcon: function( iconPosition ) {
this.element[ /^(?:end|bottom)/.test( iconPosition ) ? "append" : "prepend" ]( this.icon );
},

_setOptions: function( options ) {
var newShowLabel = options.showLabel === undefined ?
this.options.showLabel :
options.showLabel,
newIcon = options.icon === undefined ? this.options.icon : options.icon;

if ( !newShowLabel && !newIcon ) {
options.showLabel = true;
}
this._super( options );
},

_setOption: function( key, value ) {
if ( key === "icon" ) {
if ( value ) {
this._updateIcon( key, value );
} else if ( this.icon ) {
this.icon.remove();
if ( this.iconSpace ) {
this.iconSpace.remove();
}
}
}

if ( key === "iconPosition" ) {
this._updateIcon( key, value );
}

// Make sure we can't end up with a button that has neither text nor icon
if ( key === "showLabel" ) {
this._toggleClass( "ui-button-icon-only", null, !value );
this._updateTooltip();
}

if ( key === "label" ) {
if ( this.isInput ) {
this.element.val( value );
} else {

// If there is an icon, append it, else nothing then append the value
// this avoids removal of the icon when setting label text
this.element.html( value );
if ( this.icon ) {
this._attachIcon( this.options.iconPosition );
this._attachIconSpace( this.options.iconPosition );
}
}
}

this._super( key, value );

if ( key === "disabled" ) {
this._toggleClass( null, "ui-state-disabled", value );
this.element[ 0 ].disabled = value;
if ( value ) {
this.element.trigger( "blur" );
}
}
},

refresh: function() {

// Make sure to only check disabled if its an element that supports this otherwise
// check for the disabled class to determine state
var isDisabled = this.element.is( "input, button" ) ?
this.element[ 0 ].disabled : this.element.hasClass( "ui-button-disabled" );

if ( isDisabled !== this.options.disabled ) {
this._setOptions( { disabled: isDisabled } );
}

this._updateTooltip();
}
} );

// DEPRECATED
if ( $.uiBackCompat !== false ) {

// Text and Icons options
$.widget( "ui.button", $.ui.button, {
options: {
text: true,
icons: {
primary: null,
secondary: null
}
},

_create: function() {
if ( this.options.showLabel && !this.options.text ) {
this.options.showLabel = this.options.text;
}
if ( !this.options.showLabel && this.options.text ) {
this.options.text = this.options.showLabel;
}
if ( !this.options.icon && ( this.options.icons.primary ||
this.options.icons.secondary ) ) {
if ( this.options.icons.primary ) {
this.options.icon = this.options.icons.primary;
} else {
this.options.icon = this.options.icons.secondary;
this.options.iconPosition = "end";
}
} else if ( this.options.icon ) {
this.options.icons.primary = this.options.icon;
}
this._super();
},

_setOption: function( key, value ) {
if ( key === "text" ) {
this._super( "showLabel", value );
return;
}
if ( key === "showLabel" ) {
this.options.text = value;
}
if ( key === "icon" ) {
this.options.icons.primary = value;
}
if ( key === "icons" ) {
if ( value.primary ) {
this._super( "icon", value.primary );
this._super( "iconPosition", "beginning" );
} else if ( value.secondary ) {
this._super( "icon", value.secondary );
this._super( "iconPosition", "end" );
}
}
this._superApply( arguments );
}
} );

$.fn.button = ( function( orig ) {
return function( options ) {
var isMethodCall = typeof options === "string";
var args = Array.prototype.slice.call( arguments, 1 );
var returnValue = this;

if ( isMethodCall ) {

// If this is an empty collection, we need to have the instance method
// return undefined instead of the jQuery instance
if ( !this.length && options === "instance" ) {
returnValue = undefined;
} else {
this.each( function() {
var methodValue;
var type = $( this ).attr( "type" );
var name = type !== "checkbox" && type !== "radio" ?
"button" :
"checkboxradio";
var instance = $.data( this, "ui-" + name );

if ( options === "instance" ) {
returnValue = instance;
return false;
}

if ( !instance ) {
return $.error( "cannot call methods on button" +
" prior to initialization; " +
"attempted to call method '" + options + "'" );
}

if ( typeof instance[ options ] !== "function" ||
options.charAt( 0 ) === "_" ) {
return $.error( "no such method '" + options + "' for button" +
" widget instance" );
}

methodValue = instance[ options ].apply( instance, args );

if ( methodValue !== instance && methodValue !== undefined ) {
returnValue = methodValue && methodValue.jquery ?
returnValue.pushStack( methodValue.get() ) :
methodValue;
return false;
}
} );
}
} else {

// Allow multiple hashes to be passed on init
if ( args.length ) {
options = $.widget.extend.apply( null, [ options ].concat( args ) );
}

this.each( function() {
var type = $( this ).attr( "type" );
var name = type !== "checkbox" && type !== "radio" ? "button" : "checkboxradio";
var instance = $.data( this, "ui-" + name );

if ( instance ) {
instance.option( options || {} );
if ( instance._init ) {
instance._init();
}
} else {
if ( name === "button" ) {
orig.call( $( this ), options );
return;
}

$( this ).checkboxradio( $.extend( { icon: false }, options ) );
}
} );
}

return returnValue;
};
} )( $.fn.button );

$.fn.buttonset = function() {
if ( !$.ui.controlgroup ) {
$.error( "Controlgroup widget missing" );
}
if ( arguments[ 0 ] === "option" && arguments[ 1 ] === "items" && arguments[ 2 ] ) {
return this.controlgroup.apply( this,
[ arguments[ 0 ], "items.button", arguments[ 2 ] ] );
}
if ( arguments[ 0 ] === "option" && arguments[ 1 ] === "items" ) {
return this.controlgroup.apply( this, [ arguments[ 0 ], "items.button" ] );
}
if ( typeof arguments[ 0 ] === "object" && arguments[ 0 ].items ) {
arguments[ 0 ].items = {
button: arguments[ 0 ].items
};
}
return this.controlgroup.apply( this, arguments );
};
}

return $.ui.button;

} );