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/*
Copyright (c) 2003-2012, CKSource - Frederico Knabben. All rights reserved.
For licensing, see LICENSE.html or http://ckeditor.com/license
*/
CKEDITOR.plugins.add( 'htmlwriter' );
/**
* Class used to write HTML data.
* @constructor
* @example
* var writer = new CKEDITOR.htmlWriter();
* writer.openTag( 'p' );
* writer.attribute( 'class', 'MyClass' );
* writer.openTagClose( 'p' );
* writer.text( 'Hello' );
* writer.closeTag( 'p' );
* alert( writer.getHtml() ); "<p class="MyClass">Hello</p>"
*/
CKEDITOR.htmlWriter = CKEDITOR.tools.createClass(
{
base : CKEDITOR.htmlParser.basicWriter,
$ : function()
{
// Call the base contructor.
this.base();
/**
* The characters to be used for each identation step.
* @type String
* @default "\t" (tab)
* @example
* // Use two spaces for indentation.
* editorInstance.dataProcessor.writer.indentationChars = ' ';
*/
this.indentationChars = '\t';
/**
* The characters to be used to close "self-closing" elements, like "br" or
* "img".
* @type String
* @default " />"
* @example
* // Use HTML4 notation for self-closing elements.
* editorInstance.dataProcessor.writer.selfClosingEnd = '>';
*/
this.selfClosingEnd = ' />';
/**
* The characters to be used for line breaks.
* @type String
* @default "\n" (LF)
* @example
* // Use CRLF for line breaks.
* editorInstance.dataProcessor.writer.lineBreakChars = '\r\n';
*/
this.lineBreakChars = '\n';
this.forceSimpleAmpersand = 0;
this.sortAttributes = 1;
this._.indent = 0;
this._.indentation = '';
// Indicate preformatted block context status. (#5789)
this._.inPre = 0;
this._.rules = {};
var dtd = CKEDITOR.dtd;
for ( var e in CKEDITOR.tools.extend( {}, dtd.$nonBodyContent, dtd.$block, dtd.$listItem, dtd.$tableContent ) )
{
this.setRules( e,
{
indent : 1,
breakBeforeOpen : 1,
breakAfterOpen : 1,
breakBeforeClose : !dtd[ e ][ '#' ],
breakAfterClose : 1
});
}
this.setRules( 'br',
{
breakAfterOpen : 1
});
this.setRules( 'title',
{
indent : 0,
breakAfterOpen : 0
});
this.setRules( 'style',
{
indent : 0,
breakBeforeClose : 1
});
// Disable indentation on <pre>.
this.setRules( 'pre',
{
indent : 0
});
},
proto :
{
/**
* Writes the tag opening part for a opener tag.
* @param {String} tagName The element name for this tag.
* @param {Object} attributes The attributes defined for this tag. The
* attributes could be used to inspect the tag.
* @example
* // Writes "<p".
* writer.openTag( 'p', { class : 'MyClass', id : 'MyId' } );
*/
openTag : function( tagName, attributes )
{
var rules = this._.rules[ tagName ];
if ( this._.indent )
this.indentation();
// Do not break if indenting.
else if ( rules && rules.breakBeforeOpen )
{
this.lineBreak();
this.indentation();
}
this._.output.push( '<', tagName );
},
/**
* Writes the tag closing part for a opener tag.
* @param {String} tagName The element name for this tag.
* @param {Boolean} isSelfClose Indicates that this is a self-closing tag,
* like "br" or "img".
* @example
* // Writes ">".
* writer.openTagClose( 'p', false );
* @example
* // Writes " />".
* writer.openTagClose( 'br', true );
*/
openTagClose : function( tagName, isSelfClose )
{
var rules = this._.rules[ tagName ];
if ( isSelfClose )
this._.output.push( this.selfClosingEnd );
else
{
this._.output.push( '>' );
if ( rules && rules.indent )
this._.indentation += this.indentationChars;
}
if ( rules && rules.breakAfterOpen )
this.lineBreak();
tagName == 'pre' && ( this._.inPre = 1 );
},
/**
* Writes an attribute. This function should be called after opening the
* tag with {@link #openTagClose}.
* @param {String} attName The attribute name.
* @param {String} attValue The attribute value.
* @example
* // Writes ' class="MyClass"'.
* writer.attribute( 'class', 'MyClass' );
*/
attribute : function( attName, attValue )
{
if ( typeof attValue == 'string' )
{
this.forceSimpleAmpersand && ( attValue = attValue.replace( /&/g, '&' ) );
// Browsers don't always escape special character in attribute values. (#4683, #4719).
attValue = CKEDITOR.tools.htmlEncodeAttr( attValue );
}
this._.output.push( ' ', attName, '="', attValue, '"' );
},
/**
* Writes a closer tag.
* @param {String} tagName The element name for this tag.
* @example
* // Writes "</p>".
* writer.closeTag( 'p' );
*/
closeTag : function( tagName )
{
var rules = this._.rules[ tagName ];
if ( rules && rules.indent )
this._.indentation = this._.indentation.substr( this.indentationChars.length );
if ( this._.indent )
this.indentation();
// Do not break if indenting.
else if ( rules && rules.breakBeforeClose )
{
this.lineBreak();
this.indentation();
}
this._.output.push( '</', tagName, '>' );
tagName == 'pre' && ( this._.inPre = 0 );
if ( rules && rules.breakAfterClose )
this.lineBreak();
},
/**
* Writes text.
* @param {String} text The text value
* @example
* // Writes "Hello Word".
* writer.text( 'Hello Word' );
*/
text : function( text )
{
if ( this._.indent )
{
this.indentation();
!this._.inPre && ( text = CKEDITOR.tools.ltrim( text ) );
}
this._.output.push( text );
},
/**
* Writes a comment.
* @param {String} comment The comment text.
* @example
* // Writes "<!-- My comment -->".
* writer.comment( ' My comment ' );
*/
comment : function( comment )
{
if ( this._.indent )
this.indentation();
this._.output.push( '<!--', comment, '-->' );
},
/**
* Writes a line break. It uses the {@link #lineBreakChars} property for it.
* @example
* // Writes "\n" (e.g.).
* writer.lineBreak();
*/
lineBreak : function()
{
if ( !this._.inPre && this._.output.length > 0 )
this._.output.push( this.lineBreakChars );
this._.indent = 1;
},
/**
* Writes the current indentation chars. It uses the
* {@link #indentationChars} property, repeating it for the current
* indentation steps.
* @example
* // Writes "\t" (e.g.).
* writer.indentation();
*/
indentation : function()
{
if( !this._.inPre )
this._.output.push( this._.indentation );
this._.indent = 0;
},
/**
* Sets formatting rules for a give element. The possible rules are:
* <ul>
* <li><b>indent</b>: indent the element contents.</li>
* <li><b>breakBeforeOpen</b>: break line before the opener tag for this element.</li>
* <li><b>breakAfterOpen</b>: break line after the opener tag for this element.</li>
* <li><b>breakBeforeClose</b>: break line before the closer tag for this element.</li>
* <li><b>breakAfterClose</b>: break line after the closer tag for this element.</li>
* </ul>
*
* All rules default to "false". Each call to the function overrides
* already present rules, leaving the undefined untouched.
*
* By default, all elements available in the {@link CKEDITOR.dtd.$block),
* {@link CKEDITOR.dtd.$listItem} and {@link CKEDITOR.dtd.$tableContent}
* lists have all the above rules set to "true". Additionaly, the "br"
* element has the "breakAfterOpen" set to "true".
* @param {String} tagName The element name to which set the rules.
* @param {Object} rules An object containing the element rules.
* @example
* // Break line before and after "img" tags.
* writer.setRules( 'img',
* {
* breakBeforeOpen : true
* breakAfterOpen : true
* });
* @example
* // Reset the rules for the "h1" tag.
* writer.setRules( 'h1', {} );
*/
setRules : function( tagName, rules )
{
var currentRules = this._.rules[ tagName ];
if ( currentRules )
CKEDITOR.tools.extend( currentRules, rules, true );
else
this._.rules[ tagName ] = rules;
}
}
});
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