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[ckeditor.git] / _source / plugins / htmlwriter / plugin.js
diff --git a/_source/plugins/htmlwriter/plugin.js b/_source/plugins/htmlwriter/plugin.js
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+/*\r
+Copyright (c) 2003-2009, CKSource - Frederico Knabben. All rights reserved.\r
+For licensing, see LICENSE.html or http://ckeditor.com/license\r
+*/\r
+\r
+CKEDITOR.plugins.add( 'htmlwriter' );\r
+\r
+/**\r
+ * Class used to write HTML data.\r
+ * @constructor\r
+ * @example\r
+ * var writer = new CKEDITOR.htmlWriter();\r
+ * writer.openTag( 'p' );\r
+ * writer.attribute( 'class', 'MyClass' );\r
+ * writer.openTagClose( 'p' );\r
+ * writer.text( 'Hello' );\r
+ * writer.closeTag( 'p' );\r
+ * alert( writer.getHtml() );  "<p class="MyClass">Hello</p>"\r
+ */\r
+CKEDITOR.htmlWriter = CKEDITOR.tools.createClass(\r
+{\r
+       base : CKEDITOR.htmlParser.basicWriter,\r
+\r
+       $ : function()\r
+       {\r
+               // Call the base contructor.\r
+               this.base();\r
+\r
+               /**\r
+                * The characters to be used for each identation step.\r
+                * @type String\r
+                * @default "\t" (tab)\r
+                * @example\r
+                * // Use two spaces for indentation.\r
+                * editorInstance.dataProcessor.writer.indentationChars = '  ';\r
+                */\r
+               this.indentationChars = '\t';\r
+\r
+               /**\r
+                * The characters to be used to close "self-closing" elements, like "br" or\r
+                * "img".\r
+                * @type String\r
+                * @default " />"\r
+                * @example\r
+                * // Use HTML4 notation for self-closing elements.\r
+                * editorInstance.dataProcessor.writer.selfClosingEnd = '>';\r
+                */\r
+               this.selfClosingEnd = ' />';\r
+\r
+               /**\r
+                * The characters to be used for line breaks.\r
+                * @type String\r
+                * @default "\n" (LF)\r
+                * @example\r
+                * // Use CRLF for line breaks.\r
+                * editorInstance.dataProcessor.writer.lineBreakChars = '\r\n';\r
+                */\r
+               this.lineBreakChars = '\n';\r
+\r
+               this.forceSimpleAmpersand = false;\r
+\r
+               this.sortAttributes = true;\r
+\r
+               this._.indent = false;\r
+               this._.indentation = '';\r
+               this._.rules = {};\r
+\r
+               var dtd = CKEDITOR.dtd;\r
+\r
+               for ( var e in CKEDITOR.tools.extend( {}, dtd.$block, dtd.$listItem, dtd.$tableContent ) )\r
+               {\r
+                       this.setRules( e,\r
+                               {\r
+                                       indent : true,\r
+                                       breakBeforeOpen : true,\r
+                                       breakAfterOpen : true,\r
+                                       breakBeforeClose : !dtd[ e ][ '#' ],\r
+                                       breakAfterClose : true\r
+                               });\r
+               }\r
+               this.setRules( 'br',\r
+                       {\r
+                               breakAfterOpen : true\r
+                       });\r
+               // Disable indentation on <pre>.\r
+               this.setRules( 'pre',\r
+               {\r
+                 indent: false\r
+               } );\r
+       },\r
+\r
+       proto :\r
+       {\r
+               /**\r
+                * Writes the tag opening part for a opener tag.\r
+                * @param {String} tagName The element name for this tag.\r
+                * @param {Object} attributes The attributes defined for this tag. The\r
+                *              attributes could be used to inspect the tag.\r
+                * @example\r
+                * // Writes "&lt;p".\r
+                * writer.openTag( 'p', { class : 'MyClass', id : 'MyId' } );\r
+                */\r
+               openTag : function( tagName, attributes )\r
+               {\r
+                       var rules = this._.rules[ tagName ];\r
+\r
+                       if ( this._.indent )\r
+                               this.indentation();\r
+                       // Do not break if indenting.\r
+                       else if ( rules && rules.breakBeforeOpen )\r
+                       {\r
+                               this.lineBreak();\r
+                               this.indentation();\r
+                       }\r
+\r
+                       this._.output.push( '<', tagName );\r
+               },\r
+\r
+               /**\r
+                * Writes the tag closing part for a opener tag.\r
+                * @param {String} tagName The element name for this tag.\r
+                * @param {Boolean} isSelfClose Indicates that this is a self-closing tag,\r
+                *              like "br" or "img".\r
+                * @example\r
+                * // Writes "&gt;".\r
+                * writer.openTagClose( 'p', false );\r
+                * @example\r
+                * // Writes " /&gt;".\r
+                * writer.openTagClose( 'br', true );\r
+                */\r
+               openTagClose : function( tagName, isSelfClose )\r
+               {\r
+                       var rules = this._.rules[ tagName ];\r
+\r
+                       if ( isSelfClose )\r
+                               this._.output.push( this.selfClosingEnd );\r
+                       else\r
+                       {\r
+                               this._.output.push( '>' );\r
+\r
+                               if ( rules && rules.indent )\r
+                                       this._.indentation += this.indentationChars;\r
+                       }\r
+\r
+                       if ( rules && rules.breakAfterOpen )\r
+                               this.lineBreak();\r
+               },\r
+\r
+               /**\r
+                * Writes an attribute. This function should be called after opening the\r
+                * tag with {@link #openTagClose}.\r
+                * @param {String} attName The attribute name.\r
+                * @param {String} attValue The attribute value.\r
+                * @example\r
+                * // Writes ' class="MyClass"'.\r
+                * writer.attribute( 'class', 'MyClass' );\r
+                */\r
+               attribute : function( attName, attValue )\r
+               {\r
+                       if ( this.forceSimpleAmpersand )\r
+                               attValue = attValue.replace( /&amp;/, '&' );\r
+\r
+                       this._.output.push( ' ', attName, '="', attValue, '"' );\r
+               },\r
+\r
+               /**\r
+                * Writes a closer tag.\r
+                * @param {String} tagName The element name for this tag.\r
+                * @example\r
+                * // Writes "&lt;/p&gt;".\r
+                * writer.closeTag( 'p' );\r
+                */\r
+               closeTag : function( tagName )\r
+               {\r
+                       var rules = this._.rules[ tagName ];\r
+\r
+                       if ( rules && rules.indent )\r
+                               this._.indentation = this._.indentation.substr( this.indentationChars.length );\r
+\r
+                       if ( this._.indent )\r
+                               this.indentation();\r
+                       // Do not break if indenting.\r
+                       else if ( rules && rules.breakBeforeClose )\r
+                       {\r
+                               this.lineBreak();\r
+                               this.indentation();\r
+                       }\r
+\r
+                       this._.output.push( '</', tagName, '>' );\r
+\r
+                       if ( rules && rules.breakAfterClose )\r
+                               this.lineBreak();\r
+               },\r
+\r
+               /**\r
+                * Writes text.\r
+                * @param {String} text The text value\r
+                * @example\r
+                * // Writes "Hello Word".\r
+                * writer.text( 'Hello Word' );\r
+                */\r
+               text : function( text )\r
+               {\r
+                       if ( this._.indent )\r
+                       {\r
+                               this.indentation();\r
+                               text = CKEDITOR.tools.ltrim( text );\r
+                       }\r
+\r
+                       this._.output.push( text );\r
+               },\r
+\r
+               /**\r
+                * Writes a comment.\r
+                * @param {String} comment The comment text.\r
+                * @example\r
+                * // Writes "&lt;!-- My comment --&gt;".\r
+                * writer.comment( ' My comment ' );\r
+                */\r
+               comment : function( comment )\r
+               {\r
+                       if ( this._.indent )\r
+                               this.indentation();\r
+\r
+                       this._.output.push( '<!--', comment, '-->' );\r
+               },\r
+\r
+               /**\r
+                * Writes a line break. It uses the {@link #lineBreakChars} property for it.\r
+                * @example\r
+                * // Writes "\n" (e.g.).\r
+                * writer.lineBreak();\r
+                */\r
+               lineBreak : function()\r
+               {\r
+                       if ( this._.output.length > 0 )\r
+                               this._.output.push( this.lineBreakChars );\r
+                       this._.indent = true;\r
+               },\r
+\r
+               /**\r
+                * Writes the current indentation chars. It uses the\r
+                * {@link #indentationChars} property, repeating it for the current\r
+                * indentation steps.\r
+                * @example\r
+                * // Writes "\t" (e.g.).\r
+                * writer.indentation();\r
+                */\r
+               indentation : function()\r
+               {\r
+                       this._.output.push( this._.indentation );\r
+                       this._.indent = false;\r
+               },\r
+\r
+               /**\r
+                * Sets formatting rules for a give element. The possible rules are:\r
+                * <ul>\r
+                *      <li><b>indent</b>: indent the element contents.</li>\r
+                *      <li><b>breakBeforeOpen</b>: break line before the opener tag for this element.</li>\r
+                *      <li><b>breakAfterOpen</b>: break line after the opener tag for this element.</li>\r
+                *      <li><b>breakBeforeClose</b>: break line before the closer tag for this element.</li>\r
+                *      <li><b>breakAfterClose</b>: break line after the closer tag for this element.</li>\r
+                * </ul>\r
+                *\r
+                * All rules default to "false".\r
+                *\r
+                * By default, all elements available in the {@link CKEDITOR.dtd.$block),\r
+                * {@link CKEDITOR.dtd.$listItem} and {@link CKEDITOR.dtd.$tableContent}\r
+                * lists have all the above rules set to "true". Additionaly, the "br"\r
+                * element has the "breakAfterOpen" set to "true".\r
+                * @param {String} tagName The element name to which set the rules.\r
+                * @param {Object} rules An object containing the element rules.\r
+                * @example\r
+                * // Break line before and after "img" tags.\r
+                * writer.setRules( 'img',\r
+                *     {\r
+                *         breakBeforeOpen : true\r
+                *         breakAfterOpen : true\r
+                *     });\r
+                * @example\r
+                * // Reset the rules for the "h1" tag.\r
+                * writer.setRules( 'h1', {} );\r
+                */\r
+               setRules : function( tagName, rules )\r
+               {\r
+                       this._.rules[ tagName ] = rules;\r
+               }\r
+       }\r
+});\r