[239] | 1 | /*
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| 2 | Copyright (c) 2003-2011, CKSource - Frederico Knabben. All rights reserved.
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| 3 | For licensing, see LICENSE.html or http://ckeditor.com/license
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| 4 | */
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| 5 |
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| 6 | CKEDITOR.plugins.add( 'htmlwriter' );
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| 7 |
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| 8 | /**
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| 9 | * Class used to write HTML data.
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| 10 | * @constructor
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| 11 | * @example
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| 12 | * var writer = new CKEDITOR.htmlWriter();
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| 13 | * writer.openTag( 'p' );
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| 14 | * writer.attribute( 'class', 'MyClass' );
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| 15 | * writer.openTagClose( 'p' );
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| 16 | * writer.text( 'Hello' );
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| 17 | * writer.closeTag( 'p' );
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| 18 | * alert( writer.getHtml() ); "<p class="MyClass">Hello</p>"
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| 19 | */
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| 20 | CKEDITOR.htmlWriter = CKEDITOR.tools.createClass(
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| 21 | {
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| 22 | base : CKEDITOR.htmlParser.basicWriter,
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| 23 |
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| 24 | $ : function()
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| 25 | {
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| 26 | // Call the base contructor.
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| 27 | this.base();
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| 28 |
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| 29 | /**
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| 30 | * The characters to be used for each identation step.
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| 31 | * @type String
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| 32 | * @default "\t" (tab)
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| 33 | * @example
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| 34 | * // Use two spaces for indentation.
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| 35 | * editorInstance.dataProcessor.writer.indentationChars = ' ';
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| 36 | */
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| 37 | this.indentationChars = '\t';
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| 38 |
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| 39 | /**
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| 40 | * The characters to be used to close "self-closing" elements, like "br" or
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| 41 | * "img".
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| 42 | * @type String
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| 43 | * @default " />"
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| 44 | * @example
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| 45 | * // Use HTML4 notation for self-closing elements.
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| 46 | * editorInstance.dataProcessor.writer.selfClosingEnd = '>';
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| 47 | */
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| 48 | this.selfClosingEnd = ' />';
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| 49 |
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| 50 | /**
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| 51 | * The characters to be used for line breaks.
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| 52 | * @type String
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| 53 | * @default "\n" (LF)
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| 54 | * @example
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| 55 | * // Use CRLF for line breaks.
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| 56 | * editorInstance.dataProcessor.writer.lineBreakChars = '\r\n';
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| 57 | */
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| 58 | this.lineBreakChars = '\n';
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| 59 |
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| 60 | this.forceSimpleAmpersand = 0;
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| 61 |
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| 62 | this.sortAttributes = 1;
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| 63 |
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| 64 | this._.indent = 0;
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| 65 | this._.indentation = '';
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| 66 | // Indicate preformatted block context status. (#5789)
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| 67 | this._.inPre = 0;
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| 68 | this._.rules = {};
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| 69 |
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| 70 | var dtd = CKEDITOR.dtd;
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| 71 |
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| 72 | for ( var e in CKEDITOR.tools.extend( {}, dtd.$nonBodyContent, dtd.$block, dtd.$listItem, dtd.$tableContent ) )
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| 73 | {
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| 74 | this.setRules( e,
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| 75 | {
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| 76 | indent : 1,
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| 77 | breakBeforeOpen : 1,
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| 78 | breakAfterOpen : 1,
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| 79 | breakBeforeClose : !dtd[ e ][ '#' ],
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| 80 | breakAfterClose : 1
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| 81 | });
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| 82 | }
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| 83 |
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| 84 | this.setRules( 'br',
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| 85 | {
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| 86 | breakAfterOpen : 1
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| 87 | });
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| 88 |
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| 89 | this.setRules( 'title',
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| 90 | {
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| 91 | indent : 0,
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| 92 | breakAfterOpen : 0
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| 93 | });
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| 94 |
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| 95 | this.setRules( 'style',
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| 96 | {
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| 97 | indent : 0,
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| 98 | breakBeforeClose : 1
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| 99 | });
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| 100 |
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| 101 | // Disable indentation on <pre>.
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| 102 | this.setRules( 'pre',
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| 103 | {
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| 104 | indent : 0
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| 105 | });
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| 106 | },
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| 107 |
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| 108 | proto :
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| 109 | {
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| 110 | /**
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| 111 | * Writes the tag opening part for a opener tag.
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| 112 | * @param {String} tagName The element name for this tag.
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| 113 | * @param {Object} attributes The attributes defined for this tag. The
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| 114 | * attributes could be used to inspect the tag.
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| 115 | * @example
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| 116 | * // Writes "<p".
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| 117 | * writer.openTag( 'p', { class : 'MyClass', id : 'MyId' } );
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| 118 | */
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| 119 | openTag : function( tagName, attributes )
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| 120 | {
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| 121 | var rules = this._.rules[ tagName ];
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| 122 |
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| 123 | if ( this._.indent )
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| 124 | this.indentation();
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| 125 | // Do not break if indenting.
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| 126 | else if ( rules && rules.breakBeforeOpen )
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| 127 | {
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| 128 | this.lineBreak();
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| 129 | this.indentation();
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| 130 | }
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| 131 |
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| 132 | this._.output.push( '<', tagName );
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| 133 | },
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| 134 |
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| 135 | /**
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| 136 | * Writes the tag closing part for a opener tag.
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| 137 | * @param {String} tagName The element name for this tag.
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| 138 | * @param {Boolean} isSelfClose Indicates that this is a self-closing tag,
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| 139 | * like "br" or "img".
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| 140 | * @example
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| 141 | * // Writes ">".
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| 142 | * writer.openTagClose( 'p', false );
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| 143 | * @example
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| 144 | * // Writes " />".
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| 145 | * writer.openTagClose( 'br', true );
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| 146 | */
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| 147 | openTagClose : function( tagName, isSelfClose )
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| 148 | {
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| 149 | var rules = this._.rules[ tagName ];
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| 150 |
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| 151 | if ( isSelfClose )
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| 152 | this._.output.push( this.selfClosingEnd );
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| 153 | else
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| 154 | {
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| 155 | this._.output.push( '>' );
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| 156 |
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| 157 | if ( rules && rules.indent )
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| 158 | this._.indentation += this.indentationChars;
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| 159 | }
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| 160 |
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| 161 | if ( rules && rules.breakAfterOpen )
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| 162 | this.lineBreak();
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| 163 | tagName == 'pre' && ( this._.inPre = 1 );
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| 164 | },
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| 165 |
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| 166 | /**
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| 167 | * Writes an attribute. This function should be called after opening the
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| 168 | * tag with {@link #openTagClose}.
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| 169 | * @param {String} attName The attribute name.
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| 170 | * @param {String} attValue The attribute value.
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| 171 | * @example
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| 172 | * // Writes ' class="MyClass"'.
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| 173 | * writer.attribute( 'class', 'MyClass' );
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| 174 | */
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| 175 | attribute : function( attName, attValue )
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| 176 | {
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| 177 |
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| 178 | if ( typeof attValue == 'string' )
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| 179 | {
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| 180 | this.forceSimpleAmpersand && ( attValue = attValue.replace( /&/g, '&' ) );
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| 181 | // Browsers don't always escape special character in attribute values. (#4683, #4719).
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| 182 | attValue = CKEDITOR.tools.htmlEncodeAttr( attValue );
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| 183 | }
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| 184 |
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| 185 | this._.output.push( ' ', attName, '="', attValue, '"' );
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| 186 | },
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| 187 |
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| 188 | /**
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| 189 | * Writes a closer tag.
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| 190 | * @param {String} tagName The element name for this tag.
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| 191 | * @example
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| 192 | * // Writes "</p>".
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| 193 | * writer.closeTag( 'p' );
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| 194 | */
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| 195 | closeTag : function( tagName )
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| 196 | {
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| 197 | var rules = this._.rules[ tagName ];
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| 198 |
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| 199 | if ( rules && rules.indent )
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| 200 | this._.indentation = this._.indentation.substr( this.indentationChars.length );
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| 201 |
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| 202 | if ( this._.indent )
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| 203 | this.indentation();
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| 204 | // Do not break if indenting.
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| 205 | else if ( rules && rules.breakBeforeClose )
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| 206 | {
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| 207 | this.lineBreak();
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| 208 | this.indentation();
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| 209 | }
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| 210 |
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| 211 | this._.output.push( '</', tagName, '>' );
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| 212 | tagName == 'pre' && ( this._.inPre = 0 );
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| 213 |
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| 214 | if ( rules && rules.breakAfterClose )
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| 215 | this.lineBreak();
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| 216 | },
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| 217 |
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| 218 | /**
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| 219 | * Writes text.
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| 220 | * @param {String} text The text value
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| 221 | * @example
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| 222 | * // Writes "Hello Word".
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| 223 | * writer.text( 'Hello Word' );
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| 224 | */
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| 225 | text : function( text )
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| 226 | {
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| 227 | if ( this._.indent )
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| 228 | {
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| 229 | this.indentation();
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| 230 | !this._.inPre && ( text = CKEDITOR.tools.ltrim( text ) );
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| 231 | }
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| 232 |
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| 233 | this._.output.push( text );
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| 234 | },
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| 235 |
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| 236 | /**
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| 237 | * Writes a comment.
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| 238 | * @param {String} comment The comment text.
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| 239 | * @example
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| 240 | * // Writes "<!-- My comment -->".
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| 241 | * writer.comment( ' My comment ' );
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| 242 | */
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| 243 | comment : function( comment )
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| 244 | {
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| 245 | if ( this._.indent )
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| 246 | this.indentation();
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| 247 |
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| 248 | this._.output.push( '<!--', comment, '-->' );
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| 249 | },
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| 250 |
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| 251 | /**
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| 252 | * Writes a line break. It uses the {@link #lineBreakChars} property for it.
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| 253 | * @example
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| 254 | * // Writes "\n" (e.g.).
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| 255 | * writer.lineBreak();
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| 256 | */
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| 257 | lineBreak : function()
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| 258 | {
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| 259 | if ( !this._.inPre && this._.output.length > 0 )
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| 260 | this._.output.push( this.lineBreakChars );
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| 261 | this._.indent = 1;
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| 262 | },
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| 263 |
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| 264 | /**
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| 265 | * Writes the current indentation chars. It uses the
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| 266 | * {@link #indentationChars} property, repeating it for the current
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| 267 | * indentation steps.
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| 268 | * @example
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| 269 | * // Writes "\t" (e.g.).
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| 270 | * writer.indentation();
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| 271 | */
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| 272 | indentation : function()
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| 273 | {
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| 274 | if( !this._.inPre )
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| 275 | this._.output.push( this._.indentation );
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| 276 | this._.indent = 0;
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| 277 | },
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| 278 |
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| 279 | /**
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| 280 | * Sets formatting rules for a give element. The possible rules are:
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| 281 | * <ul>
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| 282 | * <li><b>indent</b>: indent the element contents.</li>
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| 283 | * <li><b>breakBeforeOpen</b>: break line before the opener tag for this element.</li>
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| 284 | * <li><b>breakAfterOpen</b>: break line after the opener tag for this element.</li>
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| 285 | * <li><b>breakBeforeClose</b>: break line before the closer tag for this element.</li>
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| 286 | * <li><b>breakAfterClose</b>: break line after the closer tag for this element.</li>
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| 287 | * </ul>
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| 288 | *
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| 289 | * All rules default to "false". Each call to the function overrides
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| 290 | * already present rules, leaving the undefined untouched.
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| 291 | *
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| 292 | * By default, all elements available in the {@link CKEDITOR.dtd.$block),
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| 293 | * {@link CKEDITOR.dtd.$listItem} and {@link CKEDITOR.dtd.$tableContent}
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| 294 | * lists have all the above rules set to "true". Additionaly, the "br"
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| 295 | * element has the "breakAfterOpen" set to "true".
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| 296 | * @param {String} tagName The element name to which set the rules.
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| 297 | * @param {Object} rules An object containing the element rules.
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| 298 | * @example
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| 299 | * // Break line before and after "img" tags.
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| 300 | * writer.setRules( 'img',
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| 301 | * {
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| 302 | * breakBeforeOpen : true
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| 303 | * breakAfterOpen : true
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| 304 | * });
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| 305 | * @example
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| 306 | * // Reset the rules for the "h1" tag.
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| 307 | * writer.setRules( 'h1', {} );
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| 308 | */
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| 309 | setRules : function( tagName, rules )
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| 310 | {
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| 311 | var currentRules = this._.rules[ tagName ];
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| 312 |
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| 313 | if ( currentRules )
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| 314 | CKEDITOR.tools.extend( currentRules, rules, true );
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| 315 | else
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| 316 | this._.rules[ tagName ] = rules;
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| 317 | }
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| 318 | }
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| 319 | });
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