text: ﻿/**
   * @license Copyright (c) 2003-2014, CKSource - Frederico Knabben. All rights reserved.
   * For licensing, see LICENSE.md or http://ckeditor.com/license
   */
  
  ( function() {
  	var template = '<a id="{id}"' +
  		' class="cke_button cke_button__{name} cke_button_{state} {cls}"' +
  		( CKEDITOR.env.gecko && !CKEDITOR.env.hc ? '' : ' href="javascript:void(\'{titleJs}\')"' ) +
  		' title="{title}"' +
  		' tabindex="-1"' +
  		' hidefocus="true"' +
  		' role="button"' +
  		' aria-labelledby="{id}_label"' +
  		' aria-haspopup="{hasArrow}"' +
  		' aria-disabled="{ariaDisabled}"';
  
  	// Some browsers don't cancel key events in the keydown but in the
  	// keypress.
  	// TODO: Check if really needed.
  	if ( CKEDITOR.env.gecko && CKEDITOR.env.mac )
  		template += ' onkeypress="return false;"';
  
  	// With Firefox, we need to force the button to redraw, otherwise it
  	// will remain in the focus state.
  	if ( CKEDITOR.env.gecko )
  		template += ' onblur="this.style.cssText = this.style.cssText;"';
  
  	template += ' onkeydown="return CKEDITOR.tools.callFunction({keydownFn},event);"' +
  		' onfocus="return CKEDITOR.tools.callFunction({focusFn},event);" ' +
  		( CKEDITOR.env.ie ? 'onclick="return false;" onmouseup' : 'onclick' ) + // #188
  			'="CKEDITOR.tools.callFunction({clickFn},this);return false;">' +
  		'<span class="cke_button_icon cke_button__{iconName}_icon" style="{style}"';
  
  
  	template += '>&nbsp;</span>' +
  		'<span id="{id}_label" class="cke_button_label cke_button__{name}_label" aria-hidden="false">{label}</span>' +
  		'{arrowHtml}' +
  		'</a>';
  
  	var templateArrow = '<span class="cke_button_arrow">' +
  		// BLACK DOWN-POINTING TRIANGLE
  	( CKEDITOR.env.hc ? '&#9660;' : '' ) +
  		'</span>';
  
  	var btnArrowTpl = CKEDITOR.addTemplate( 'buttonArrow', templateArrow ),
  		btnTpl = CKEDITOR.addTemplate( 'button', template );
  
  	CKEDITOR.plugins.add( 'button', {
  		lang: 'ca,cs,de,el,en,en-gb,eo,fa,fi,fr,gl,he,hu,it,ja,km,nb,nl,pl,pt,pt-br,ro,ru,sk,sl,sv,tr,tt,uk,vi,zh-cn', // %REMOVE_LINE_CORE%
  		beforeInit: function( editor ) {
  			editor.ui.addHandler( CKEDITOR.UI_BUTTON, CKEDITOR.ui.button.handler );
  		}
  	} );
  
  	/**
  	 * Button UI element.
  	 *
  	 * @readonly
  	 * @property {String} [='button']
  	 * @member CKEDITOR
  	 */
  	CKEDITOR.UI_BUTTON = 'button';
  
  	/**
  	 * Represents a button UI element. This class should not be called directly. To
  	 * create new buttons use {@link CKEDITOR.ui#addButton} instead.
  	 *
  	 * @class
  	 * @constructor Creates a button class instance.
  	 * @param {Object} definition The button definition.
  	 */
  	CKEDITOR.ui.button = function( definition ) {
  		CKEDITOR.tools.extend( this, definition,
  		// Set defaults.
  		{
  			title: definition.label,
  			click: definition.click ||
  			function( editor ) {
  				editor.execCommand( definition.command );
  			}
  		} );
  
  		this._ = {};
  	};
  
  	/**
  	 * Represents the button handler object.
  	 *
  	 * @class
  	 * @singleton
  	 * @extends CKEDITOR.ui.handlerDefinition
  	 */
  	CKEDITOR.ui.button.handler = {
  		/**
  		 * Transforms a button definition in a {@link CKEDITOR.ui.button} instance.
  		 *
  		 * @member CKEDITOR.ui.button.handler
  		 * @param {Object} definition
  		 * @returns {CKEDITOR.ui.button}
  		 */
  		create: function( definition ) {
  			return new CKEDITOR.ui.button( definition );
  		}
  	};
  
  	/** @class CKEDITOR.ui.button */
  	CKEDITOR.ui.button.prototype = {
  		/**
  		 * Renders the button.
  		 *
  		 * @param {CKEDITOR.editor} editor The editor instance which this button is
  		 * to be used by.
  		 * @param {Array} output The output array to which the HTML code related to
  		 * this button should be appended.
  		 */
  		render: function( editor, output ) {
  			var env = CKEDITOR.env,
  				id = this._.id = CKEDITOR.tools.getNextId(),
  				stateName = '',
  				command = this.command,
  				// Get the command name.
  				clickFn;
  
  			this._.editor = editor;
  
  			var instance = {
  				id: id,
  				button: this,
  				editor: editor,
  				focus: function() {
  					var element = CKEDITOR.document.getById( id );
  					element.focus();
  				},
  				execute: function() {
  					this.button.click( editor );
  				},
  				attach: function( editor ) {
  					this.button.attach( editor );
  				}
  			};
  
  			var keydownFn = CKEDITOR.tools.addFunction( function( ev ) {
  				if ( instance.onkey ) {
  					ev = new CKEDITOR.dom.event( ev );
  					return ( instance.onkey( instance, ev.getKeystroke() ) !== false );
  				}
  			} );
  
  			var focusFn = CKEDITOR.tools.addFunction( function( ev ) {
  				var retVal;
  
  				if ( instance.onfocus )
  					retVal = ( instance.onfocus( instance, new CKEDITOR.dom.event( ev ) ) !== false );
  
  				return retVal;
  			} );
  
  			var selLocked = 0;
  
  			instance.clickFn = clickFn = CKEDITOR.tools.addFunction( function() {
  
  				// Restore locked selection in Opera.
  				if ( selLocked ) {
  					editor.unlockSelection( 1 );
  					selLocked = 0;
  				}
  				instance.execute();
  
  				// Fixed iOS focus issue when your press disabled button (#12381).
  				if ( env.iOS ) {
  					editor.focus();
  				}
  			} );
  
  
  			// Indicate a mode sensitive button.
  			if ( this.modes ) {
  				var modeStates = {};
  
  				function updateState() {
  					// "this" is a CKEDITOR.ui.button instance.
  
  					var mode = editor.mode;
  
  					if ( mode ) {
  						// Restore saved button state.
  						var state = this.modes[ mode ] ? modeStates[ mode ] != undefined ? modeStates[ mode ] : CKEDITOR.TRISTATE_OFF : CKEDITOR.TRISTATE_DISABLED;
  
  						state = editor.readOnly && !this.readOnly ? CKEDITOR.TRISTATE_DISABLED : state;
  
  						this.setState( state );
  
  						// Let plugin to disable button.
  						if ( this.refresh )
  							this.refresh();
  					}
  				}
  
  				editor.on( 'beforeModeUnload', function() {
  					if ( editor.mode && this._.state != CKEDITOR.TRISTATE_DISABLED )
  						modeStates[ editor.mode ] = this._.state;
  				}, this );
  
  				// Update status when activeFilter, mode or readOnly changes.
  				editor.on( 'activeFilterChange', updateState, this );
  				editor.on( 'mode', updateState, this );
  				// If this button is sensitive to readOnly state, update it accordingly.
  				!this.readOnly && editor.on( 'readOnly', updateState, this );
  
  			} else if ( command ) {
  				// Get the command instance.
  				command = editor.getCommand( command );
  
  				if ( command ) {
  					command.on( 'state', function() {
  						this.setState( command.state );
  					}, this );
  
  					stateName += ( command.state == CKEDITOR.TRISTATE_ON ? 'on' : command.state == CKEDITOR.TRISTATE_DISABLED ? 'disabled' : 'off' );
  				}
  			}
  
  			// For button that has text-direction awareness on selection path.
  			if ( this.directional ) {
  				editor.on( 'contentDirChanged', function( evt ) {
  					var el = CKEDITOR.document.getById( this._.id ),
  						icon = el.getFirst();
  
  					var pathDir = evt.data;
  
  					// Make a minor direction change to become style-able for the skin icon.
  					if ( pathDir !=  editor.lang.dir )
  						el.addClass( 'cke_' + pathDir );
  					else
  						el.removeClass( 'cke_ltr' ).removeClass( 'cke_rtl' );
  
  					// Inline style update for the plugin icon.
  					icon.setAttribute( 'style', CKEDITOR.skin.getIconStyle( iconName, pathDir == 'rtl', this.icon, this.iconOffset ) );
  				}, this );
  			}
  
  			if ( !command )
  				stateName += 'off';
  
  			var name = this.name || this.command,
  				iconName = name;
  
  			// Check if we're pointing to an icon defined by another command. (#9555)
  			if ( this.icon && !( /\./ ).test( this.icon ) ) {
  				iconName = this.icon;
  				this.icon = null;
  			}
  
  			var params = {
  				id: id,
  				name: name,
  				iconName: iconName,
  				label: this.label,
  				cls: this.className || '',
  				state: stateName,
  				ariaDisabled: stateName == 'disabled' ? 'true' : 'false',
  				title: this.title,
  				titleJs: env.gecko && !env.hc ? '' : ( this.title || '' ).replace( "'", '' ),
  				hasArrow: this.hasArrow ? 'true' : 'false',
  				keydownFn: keydownFn,
  				focusFn: focusFn,
  				clickFn: clickFn,
  				style: CKEDITOR.skin.getIconStyle( iconName, ( editor.lang.dir == 'rtl' ), this.icon, this.iconOffset ),
  				arrowHtml: this.hasArrow ? btnArrowTpl.output() : ''
  			};
  
  			btnTpl.output( params, output );
  
  			if ( this.onRender )
  				this.onRender();
  
  			return instance;
  		},
  
  		/**
  		 * Sets the button state.
  		 *
  		 * @param {Number} state Indicates the button state. One of {@link CKEDITOR#TRISTATE_ON},
  		 * {@link CKEDITOR#TRISTATE_OFF}, or {@link CKEDITOR#TRISTATE_DISABLED}.
  		 */
  		setState: function( state ) {
  			if ( this._.state == state )
  				return false;
  
  			this._.state = state;
  
  			var element = CKEDITOR.document.getById( this._.id );
  
  			if ( element ) {
  				element.setState( state, 'cke_button' );
  
  				state == CKEDITOR.TRISTATE_DISABLED ?
  					element.setAttribute( 'aria-disabled', true ) :
  					element.removeAttribute( 'aria-disabled' );
  
  				if ( !this.hasArrow ) {
  					// Note: aria-pressed attribute should not be added to menuButton instances. (#11331)
  					state == CKEDITOR.TRISTATE_ON ?
  						element.setAttribute( 'aria-pressed', true ) :
  						element.removeAttribute( 'aria-pressed' );
  				} else {
  					var newLabel = state == CKEDITOR.TRISTATE_ON ?
  						this._.editor.lang.button.selectedLabel.replace( /%1/g, this.label ) : this.label;
  					CKEDITOR.document.getById( this._.id + '_label' ).setText( newLabel );
  				}
  
  				return true;
  			} else
  				return false;
  		},
  
  		/**
  		 * Gets the button state.
  		 *
  		 * @returns {Number} The button state. One of {@link CKEDITOR#TRISTATE_ON},
  		 * {@link CKEDITOR#TRISTATE_OFF}, or {@link CKEDITOR#TRISTATE_DISABLED}.
  		 */
  		getState: function( state ) {
  			return this._.state;
  		},
  
  		/**
  		 * Returns this button's {@link CKEDITOR.feature} instance.
  		 *
  		 * It may be this button instance if it has at least one of
  		 * `allowedContent` and `requiredContent` properties. Otherwise,
  		 * if a command is bound to this button by the `command` property, then
  		 * that command will be returned.
  		 *
  		 * This method implements the {@link CKEDITOR.feature#toFeature} interface method.
  		 *
  		 * @since 4.1
  		 * @param {CKEDITOR.editor} Editor instance.
  		 * @returns {CKEDITOR.feature} The feature.
  		 */
  		toFeature: function( editor ) {
  			if ( this._.feature )
  				return this._.feature;
  
  			var feature = this;
  
  			// If button isn't a feature, return command if is bound.
  			if ( !this.allowedContent && !this.requiredContent && this.command )
  				feature = editor.getCommand( this.command ) || feature;
  
  			return this._.feature = feature;
  		}
  	};
  
  	/**
  	 * Adds a button definition to the UI elements list.
  	 *
  	 *		editorInstance.ui.addButton( 'MyBold', {
  	 *			label: 'My Bold',
  	 *			command: 'bold',
  	 *			toolbar: 'basicstyles,1'
  	 *		} );
  	 *
  	 * @member CKEDITOR.ui
  	 * @param {String} name The button name.
  	 * @param {Object} definition The button definition.
  	 * @param {String} definition.label The textual part of the button (if visible) and its tooltip.
  	 * @param {String} definition.command The command to be executed once the button is activated.
  	 * @param {String} definition.toolbar The {@link CKEDITOR.config#toolbarGroups toolbar group} into which
  	 * the button will be added. An optional index value (separated by a comma) determines the button position within the group.
  	 */
  	CKEDITOR.ui.prototype.addButton = function( name, definition ) {
  		this.add( name, CKEDITOR.UI_BUTTON, definition );
  	};
  
  } )();
  