_source/plugins/htmlwriter/plugin.js

   1 /*\r
   2 Copyright (c) 2003-2010, CKSource - Frederico Knabben. All rights reserved.\r
   3 For licensing, see LICENSE.html or http://ckeditor.com/license\r
   4 */\r
   5 \r
   6 CKEDITOR.plugins.add( 'htmlwriter' );\r
   7 \r
   8 /**\r
   9  * Class used to write HTML data.\r
  10  * @constructor\r
  11  * @example\r
  12  * var writer = new CKEDITOR.htmlWriter();\r
  13  * writer.openTag( 'p' );\r
  14  * writer.attribute( 'class', 'MyClass' );\r
  15  * writer.openTagClose( 'p' );\r
  16  * writer.text( 'Hello' );\r
  17  * writer.closeTag( 'p' );\r
  18  * alert( writer.getHtml() );  "&lt;p class="MyClass"&gt;Hello&lt;/p&gt;"\r
  19  */\r
  20 CKEDITOR.htmlWriter = CKEDITOR.tools.createClass(\r
  21 {\r
  22         base : CKEDITOR.htmlParser.basicWriter,\r
  23 \r
  24         $ : function()\r
  25         {\r
  26                 // Call the base contructor.\r
  27                 this.base();\r
  28 \r
  29                 /**\r
  30                  * The characters to be used for each identation step.\r
  31                  * @type String\r
  32                  * @default "\t" (tab)\r
  33                  * @example\r
  34                  * // Use two spaces for indentation.\r
  35                  * editorInstance.dataProcessor.writer.indentationChars = '  ';\r
  36                  */\r
  37                 this.indentationChars = '\t';\r
  38 \r
  39                 /**\r
  40                  * The characters to be used to close "self-closing" elements, like "br" or\r
  41                  * "img".\r
  42                  * @type String\r
  43                  * @default " /&gt;"\r
  44                  * @example\r
  45                  * // Use HTML4 notation for self-closing elements.\r
  46                  * editorInstance.dataProcessor.writer.selfClosingEnd = '>';\r
  47                  */\r
  48                 this.selfClosingEnd = ' />';\r
  49 \r
  50                 /**\r
  51                  * The characters to be used for line breaks.\r
  52                  * @type String\r
  53                  * @default "\n" (LF)\r
  54                  * @example\r
  55                  * // Use CRLF for line breaks.\r
  56                  * editorInstance.dataProcessor.writer.lineBreakChars = '\r\n';\r
  57                  */\r
  58                 this.lineBreakChars = '\n';\r
  59 \r
  60                 this.forceSimpleAmpersand = false;\r
  61 \r
  62                 this.sortAttributes = true;\r
  63 \r
  64                 this._.indent = false;\r
  65                 this._.indentation = '';\r
  66                 this._.rules = {};\r
  67 \r
  68                 var dtd = CKEDITOR.dtd;\r
  69 \r
  70                 for ( var e in CKEDITOR.tools.extend( {}, dtd.$nonBodyContent, dtd.$block, dtd.$listItem, dtd.$tableContent ) )\r
  71                 {\r
  72                         this.setRules( e,\r
  73                                 {\r
  74                                         indent : true,\r
  75                                         breakBeforeOpen : true,\r
  76                                         breakAfterOpen : true,\r
  77                                         breakBeforeClose : !dtd[ e ][ '#' ],\r
  78                                         breakAfterClose : true\r
  79                                 });\r
  80                 }\r
  81 \r
  82                 this.setRules( 'br',\r
  83                         {\r
  84                                 breakAfterOpen : true\r
  85                         });\r
  86 \r
  87                 this.setRules( 'title',\r
  88                         {\r
  89                                 indent : false,\r
  90                                 breakAfterOpen : false\r
  91                         });\r
  92 \r
  93                 this.setRules( 'style',\r
  94                         {\r
  95                                 indent : false,\r
  96                                 breakBeforeClose : true\r
  97                         });\r
  98 \r
  99                 // Disable indentation on <pre>.\r
 100                 this.setRules( 'pre',\r
 101                         {\r
 102                           indent: false\r
 103                         });\r
 104         },\r
 105 \r
 106         proto :\r
 107         {\r
 108                 /**\r
 109                  * Writes the tag opening part for a opener tag.\r
 110                  * @param {String} tagName The element name for this tag.\r
 111                  * @param {Object} attributes The attributes defined for this tag. The\r
 112                  *              attributes could be used to inspect the tag.\r
 113                  * @example\r
 114                  * // Writes "&lt;p".\r
 115                  * writer.openTag( 'p', { class : 'MyClass', id : 'MyId' } );\r
 116                  */\r
 117                 openTag : function( tagName, attributes )\r
 118                 {\r
 119                         var rules = this._.rules[ tagName ];\r
 120 \r
 121                         if ( this._.indent )\r
 122                                 this.indentation();\r
 123                         // Do not break if indenting.\r
 124                         else if ( rules && rules.breakBeforeOpen )\r
 125                         {\r
 126                                 this.lineBreak();\r
 127                                 this.indentation();\r
 128                         }\r
 129 \r
 130                         this._.output.push( '<', tagName );\r
 131                 },\r
 132 \r
 133                 /**\r
 134                  * Writes the tag closing part for a opener tag.\r
 135                  * @param {String} tagName The element name for this tag.\r
 136                  * @param {Boolean} isSelfClose Indicates that this is a self-closing tag,\r
 137                  *              like "br" or "img".\r
 138                  * @example\r
 139                  * // Writes "&gt;".\r
 140                  * writer.openTagClose( 'p', false );\r
 141                  * @example\r
 142                  * // Writes " /&gt;".\r
 143                  * writer.openTagClose( 'br', true );\r
 144                  */\r
 145                 openTagClose : function( tagName, isSelfClose )\r
 146                 {\r
 147                         var rules = this._.rules[ tagName ];\r
 148 \r
 149                         if ( isSelfClose )\r
 150                                 this._.output.push( this.selfClosingEnd );\r
 151                         else\r
 152                         {\r
 153                                 this._.output.push( '>' );\r
 154 \r
 155                                 if ( rules && rules.indent )\r
 156                                         this._.indentation += this.indentationChars;\r
 157                         }\r
 158 \r
 159                         if ( rules && rules.breakAfterOpen )\r
 160                                 this.lineBreak();\r
 161                 },\r
 162 \r
 163                 /**\r
 164                  * Writes an attribute. This function should be called after opening the\r
 165                  * tag with {@link #openTagClose}.\r
 166                  * @param {String} attName The attribute name.\r
 167                  * @param {String} attValue The attribute value.\r
 168                  * @example\r
 169                  * // Writes ' class="MyClass"'.\r
 170                  * writer.attribute( 'class', 'MyClass' );\r
 171                  */\r
 172                 attribute : function( attName, attValue )\r
 173                 {\r
 174                         if ( this.forceSimpleAmpersand )\r
 175                                 attValue = attValue.replace( /&amp;/, '&' );\r
 176 \r
 177                         this._.output.push( ' ', attName, '="', attValue, '"' );\r
 178                 },\r
 179 \r
 180                 /**\r
 181                  * Writes a closer tag.\r
 182                  * @param {String} tagName The element name for this tag.\r
 183                  * @example\r
 184                  * // Writes "&lt;/p&gt;".\r
 185                  * writer.closeTag( 'p' );\r
 186                  */\r
 187                 closeTag : function( tagName )\r
 188                 {\r
 189                         var rules = this._.rules[ tagName ];\r
 190 \r
 191                         if ( rules && rules.indent )\r
 192                                 this._.indentation = this._.indentation.substr( this.indentationChars.length );\r
 193 \r
 194                         if ( this._.indent )\r
 195                                 this.indentation();\r
 196                         // Do not break if indenting.\r
 197                         else if ( rules && rules.breakBeforeClose )\r
 198                         {\r
 199                                 this.lineBreak();\r
 200                                 this.indentation();\r
 201                         }\r
 202 \r
 203                         this._.output.push( '</', tagName, '>' );\r
 204 \r
 205                         if ( rules && rules.breakAfterClose )\r
 206                                 this.lineBreak();\r
 207                 },\r
 208 \r
 209                 /**\r
 210                  * Writes text.\r
 211                  * @param {String} text The text value\r
 212                  * @example\r
 213                  * // Writes "Hello Word".\r
 214                  * writer.text( 'Hello Word' );\r
 215                  */\r
 216                 text : function( text )\r
 217                 {\r
 218                         if ( this._.indent )\r
 219                         {\r
 220                                 this.indentation();\r
 221                                 text = CKEDITOR.tools.ltrim( text );\r
 222                         }\r
 223 \r
 224                         this._.output.push( text );\r
 225                 },\r
 226 \r
 227                 /**\r
 228                  * Writes a comment.\r
 229                  * @param {String} comment The comment text.\r
 230                  * @example\r
 231                  * // Writes "&lt;!-- My comment --&gt;".\r
 232                  * writer.comment( ' My comment ' );\r
 233                  */\r
 234                 comment : function( comment )\r
 235                 {\r
 236                         if ( this._.indent )\r
 237                                 this.indentation();\r
 238 \r
 239                         this._.output.push( '<!--', comment, '-->' );\r
 240                 },\r
 241 \r
 242                 /**\r
 243                  * Writes a line break. It uses the {@link #lineBreakChars} property for it.\r
 244                  * @example\r
 245                  * // Writes "\n" (e.g.).\r
 246                  * writer.lineBreak();\r
 247                  */\r
 248                 lineBreak : function()\r
 249                 {\r
 250                         if ( this._.output.length > 0 )\r
 251                                 this._.output.push( this.lineBreakChars );\r
 252                         this._.indent = true;\r
 253                 },\r
 254 \r
 255                 /**\r
 256                  * Writes the current indentation chars. It uses the\r
 257                  * {@link #indentationChars} property, repeating it for the current\r
 258                  * indentation steps.\r
 259                  * @example\r
 260                  * // Writes "\t" (e.g.).\r
 261                  * writer.indentation();\r
 262                  */\r
 263                 indentation : function()\r
 264                 {\r
 265                         this._.output.push( this._.indentation );\r
 266                         this._.indent = false;\r
 267                 },\r
 268 \r
 269                 /**\r
 270                  * Sets formatting rules for a give element. The possible rules are:\r
 271                  * <ul>\r
 272                  *      <li><b>indent</b>: indent the element contents.</li>\r
 273                  *      <li><b>breakBeforeOpen</b>: break line before the opener tag for this element.</li>\r
 274                  *      <li><b>breakAfterOpen</b>: break line after the opener tag for this element.</li>\r
 275                  *      <li><b>breakBeforeClose</b>: break line before the closer tag for this element.</li>\r
 276                  *      <li><b>breakAfterClose</b>: break line after the closer tag for this element.</li>\r
 277                  * </ul>\r
 278                  *\r
 279                  * All rules default to "false". Each call to the function overrides\r
 280                  * already present rules, leaving the undefined untouched.\r
 281                  *\r
 282                  * By default, all elements available in the {@link CKEDITOR.dtd.$block),\r
 283                  * {@link CKEDITOR.dtd.$listItem} and {@link CKEDITOR.dtd.$tableContent}\r
 284                  * lists have all the above rules set to "true". Additionaly, the "br"\r
 285                  * element has the "breakAfterOpen" set to "true".\r
 286                  * @param {String} tagName The element name to which set the rules.\r
 287                  * @param {Object} rules An object containing the element rules.\r
 288                  * @example\r
 289                  * // Break line before and after "img" tags.\r
 290                  * writer.setRules( 'img',\r
 291                  *     {\r
 292                  *         breakBeforeOpen : true\r
 293                  *         breakAfterOpen : true\r
 294                  *     });\r
 295                  * @example\r
 296                  * // Reset the rules for the "h1" tag.\r
 297                  * writer.setRules( 'h1', {} );\r
 298                  */\r
 299                 setRules : function( tagName, rules )\r
 300                 {\r
 301                         var currentRules = this._.rules[ tagName ];\r
 302 \r
 303                         if ( currentRules )\r
 304                                 CKEDITOR.tools.extend( currentRules, rules, true );\r
 305                         else\r
 306                                 this._.rules[ tagName ] = rules;\r
 307                 }\r
 308         }\r
 309 });\r