1 /* 2 Copyright (c) 2003-2009, CKSource - Frederico Knabben. All rights reserved. 3 For licensing, see LICENSE.html or http://ckeditor.com/license 4 */ 5 6 /** 7 * @file Justify commands. 8 */ 9 10 (function() 11 { 12 var alignRemoveRegex = /(-moz-|-webkit-|start|auto)/i; 13 14 function getState( editor, path ) 15 { 16 var firstBlock = path.block || path.blockLimit; 17 18 if ( !firstBlock || firstBlock.getName() == 'body' ) 19 return CKEDITOR.TRISTATE_OFF; 20 21 var currentAlign = firstBlock.getComputedStyle( 'text-align' ).replace( alignRemoveRegex, '' ); 22 if ( ( !currentAlign && this.isDefaultAlign ) || currentAlign == this.value ) 23 return CKEDITOR.TRISTATE_ON; 24 return CKEDITOR.TRISTATE_OFF; 25 } 26 27 function onSelectionChange( evt ) 28 { 29 var command = evt.editor.getCommand( this.name ); 30 command.state = getState.call( this, evt.editor, evt.data.path ); 31 command.fire( 'state' ); 32 } 33 34 function justifyCommand( editor, name, value ) 35 { 36 this.name = name; 37 this.value = value; 38 39 var contentDir = editor.config.contentsLangDirection; 40 this.isDefaultAlign = ( value == 'left' && contentDir == 'ltr' ) || 41 ( value == 'right' && contentDir == 'rtl' ); 42 43 var classes = editor.config.justifyClasses; 44 if ( classes ) 45 { 46 switch ( value ) 47 { 48 case 'left' : 49 this.cssClassName = classes[0]; 50 break; 51 case 'center' : 52 this.cssClassName = classes[1]; 53 break; 54 case 'right' : 55 this.cssClassName = classes[2]; 56 break; 57 case 'justify' : 58 this.cssClassName = classes[3]; 59 break; 60 } 61 62 this.cssClassRegex = new RegExp( '(?:^|\\s+)(?:' + classes.join( '|' ) + ')(?=$|\\s)' ); 63 } 64 } 65 66 justifyCommand.prototype = { 67 exec : function( editor ) 68 { 69 var selection = editor.getSelection(), 70 range = selection && selection.getRanges()[0]; 71 72 if ( !range ) 73 return; 74 75 var bookmarks = selection.createBookmarks(), 76 cssClassName = this.cssClassName, 77 iterator = range.createIterator(), 78 block; 79 80 while ( ( block = iterator.getNextParagraph() ) ) 81 { 82 block.removeAttribute( 'align' ); 83 84 if ( cssClassName ) 85 { 86 // Remove any of the alignment classes from the className. 87 var className = block.$.className = 88 CKEDITOR.tools.ltrim( block.$.className.replace( this.cssClassRegex, '' ) ); 89 90 // Append the desired class name. 91 if ( this.state == CKEDITOR.TRISTATE_OFF && !this.isDefaultAlign ) 92 block.addClass( cssClassName ); 93 else if ( className.length == 0 ) 94 block.removeAttribute( 'class' ); 95 } 96 else 97 { 98 if ( this.state == CKEDITOR.TRISTATE_OFF && !this.isDefaultAlign ) 99 block.setStyle( 'text-align', this.value ); 100 else 101 block.removeStyle( 'text-align' ); 102 } 103 } 104 105 editor.focus(); 106 editor.forceNextSelectionCheck(); 107 selection.selectBookmarks( bookmarks ); 108 } 109 }; 110 111 CKEDITOR.plugins.add( 'justify', 112 { 113 init : function( editor ) 114 { 115 var left = new justifyCommand( editor, 'justifyleft', 'left' ), 116 center = new justifyCommand( editor, 'justifycenter', 'center' ), 117 right = new justifyCommand( editor, 'justifyright', 'right' ), 118 justify = new justifyCommand( editor, 'justifyblock', 'justify' ); 119 120 editor.addCommand( 'justifyleft', left ); 121 editor.addCommand( 'justifycenter', center ); 122 editor.addCommand( 'justifyright', right ); 123 editor.addCommand( 'justifyblock', justify ); 124 125 editor.ui.addButton( 'JustifyLeft', 126 { 127 label : editor.lang.justify.left, 128 command : 'justifyleft' 129 } ); 130 editor.ui.addButton( 'JustifyCenter', 131 { 132 label : editor.lang.justify.center, 133 command : 'justifycenter' 134 } ); 135 editor.ui.addButton( 'JustifyRight', 136 { 137 label : editor.lang.justify.right, 138 command : 'justifyright' 139 } ); 140 editor.ui.addButton( 'JustifyBlock', 141 { 142 label : editor.lang.justify.block, 143 command : 'justifyblock' 144 } ); 145 146 editor.on( 'selectionChange', CKEDITOR.tools.bind( onSelectionChange, left ) ); 147 editor.on( 'selectionChange', CKEDITOR.tools.bind( onSelectionChange, right ) ); 148 editor.on( 'selectionChange', CKEDITOR.tools.bind( onSelectionChange, center ) ); 149 editor.on( 'selectionChange', CKEDITOR.tools.bind( onSelectionChange, justify ) ); 150 }, 151 152 requires : [ 'domiterator' ] 153 }); 154 })(); 155 156 CKEDITOR.tools.extend( CKEDITOR.config, 157 { 158 justifyClasses : null 159 } ); 160