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/*
Copyright (c) 2003-2012, CKSource - Frederico Knabben. All rights reserved.
For licensing, see LICENSE.html or http://ckeditor.com/license
*/
(function()
{
// Regex to scan for at the end of blocks, which are actually placeholders.
// Safari transforms the to \xa0. (#4172)
var tailNbspRegex = /^[\t\r\n ]*(?: |\xa0)$/;
var protectedSourceMarker = '{cke_protected}';
// Return the last non-space child node of the block (#4344).
function lastNoneSpaceChild( block )
{
var lastIndex = block.children.length,
last = block.children[ lastIndex - 1 ];
while ( last && last.type == CKEDITOR.NODE_TEXT && !CKEDITOR.tools.trim( last.value ) )
last = block.children[ --lastIndex ];
return last;
}
function trimFillers( block, fromSource )
{
// If the current node is a block, and if we're converting from source or
// we're not in IE then search for and remove any tailing BR node.
//
// Also, any at the end of blocks are fillers, remove them as well.
// (#2886)
var children = block.children, lastChild = lastNoneSpaceChild( block );
if ( lastChild )
{
if ( ( fromSource || !CKEDITOR.env.ie ) && lastChild.type == CKEDITOR.NODE_ELEMENT && lastChild.name == 'br' )
children.pop();
if ( lastChild.type == CKEDITOR.NODE_TEXT && tailNbspRegex.test( lastChild.value ) )
children.pop();
}
}
function blockNeedsExtension( block, fromSource, extendEmptyBlock )
{
if( !fromSource && ( !extendEmptyBlock ||
typeof extendEmptyBlock == 'function' && ( extendEmptyBlock( block ) === false ) ) )
return false;
// 1. For IE version >=8, empty blocks are displayed correctly themself in wysiwiyg;
// 2. For the rest, at least table cell and list item need no filler space.
// (#6248)
if ( fromSource && CKEDITOR.env.ie &&
( document.documentMode > 7
|| block.name in CKEDITOR.dtd.tr
|| block.name in CKEDITOR.dtd.$listItem ) )
return false;
var lastChild = lastNoneSpaceChild( block );
return !lastChild || lastChild &&
( lastChild.type == CKEDITOR.NODE_ELEMENT && lastChild.name == 'br'
// Some of the controls in form needs extension too,
// to move cursor at the end of the form. (#4791)
|| block.name == 'form' && lastChild.name == 'input' );
}
function getBlockExtension( isOutput, emptyBlockFiller )
{
return function( node )
{
trimFillers( node, !isOutput );
if ( blockNeedsExtension( node, !isOutput, emptyBlockFiller ) )
{
if ( isOutput || CKEDITOR.env.ie )
node.add( new CKEDITOR.htmlParser.text( '\xa0' ) );
else
node.add( new CKEDITOR.htmlParser.element( 'br', {} ) );
}
};
}
var dtd = CKEDITOR.dtd;
// Define orders of table elements.
var tableOrder = [ 'caption', 'colgroup', 'col', 'thead', 'tfoot', 'tbody' ];
// Find out the list of block-like tags that can contain <br>.
var blockLikeTags = CKEDITOR.tools.extend( {}, dtd.$block, dtd.$listItem, dtd.$tableContent );
for ( var i in blockLikeTags )
{
if ( ! ( 'br' in dtd[i] ) )
delete blockLikeTags[i];
}
// We just avoid filler in <pre> right now.
// TODO: Support filler for <pre>, line break is also occupy line height.
delete blockLikeTags.pre;
var defaultDataFilterRules =
{
elements : {},
attributeNames :
[
// Event attributes (onXYZ) must not be directly set. They can become
// active in the editing area (IE|WebKit).
[ ( /^on/ ), 'data-cke-pa-on' ]
]
};
var defaultDataBlockFilterRules = { elements : {} };
for ( i in blockLikeTags )
defaultDataBlockFilterRules.elements[ i ] = getBlockExtension();
var defaultHtmlFilterRules =
{
elementNames :
[
// Remove the "cke:" namespace prefix.
[ ( /^cke:/ ), '' ],
// Ignore <?xml:namespace> tags.
[ ( /^\?xml:namespace$/ ), '' ]
],
attributeNames :
[
// Attributes saved for changes and protected attributes.
[ ( /^data-cke-(saved|pa)-/ ), '' ],
// All "data-cke-" attributes are to be ignored.
[ ( /^data-cke-.*/ ), '' ],
[ 'hidefocus', '' ]
],
elements :
{
$ : function( element )
{
var attribs = element.attributes;
if ( attribs )
{
// Elements marked as temporary are to be ignored.
if ( attribs[ 'data-cke-temp' ] )
return false;
// Remove duplicated attributes - #3789.
var attributeNames = [ 'name', 'href', 'src' ],
savedAttributeName;
for ( var i = 0 ; i < attributeNames.length ; i++ )
{
savedAttributeName = 'data-cke-saved-' + attributeNames[ i ];
savedAttributeName in attribs && ( delete attribs[ attributeNames[ i ] ] );
}
}
return element;
},
// The contents of table should be in correct order (#4809).
table : function( element )
{
var children = element.children;
children.sort( function ( node1, node2 )
{
return node1.type == CKEDITOR.NODE_ELEMENT && node2.type == node1.type ?
CKEDITOR.tools.indexOf( tableOrder, node1.name ) > CKEDITOR.tools.indexOf( tableOrder, node2.name ) ? 1 : -1 : 0;
} );
},
embed : function( element )
{
var parent = element.parent;
// If the <embed> is child of a <object>, copy the width
// and height attributes from it.
if ( parent && parent.name == 'object' )
{
var parentWidth = parent.attributes.width,
parentHeight = parent.attributes.height;
parentWidth && ( element.attributes.width = parentWidth );
parentHeight && ( element.attributes.height = parentHeight );
}
},
// Restore param elements into self-closing.
param : function( param )
{
param.children = [];
param.isEmpty = true;
return param;
},
// Remove empty link but not empty anchor.(#3829)
a : function( element )
{
if ( !( element.children.length ||
element.attributes.name ||
element.attributes[ 'data-cke-saved-name' ] ) )
{
return false;
}
},
// Remove dummy span in webkit.
span: function( element )
{
if ( element.attributes[ 'class' ] == 'Apple-style-span' )
delete element.name;
},
// Empty <pre> in IE is reported with filler node ( ).
pre : function( element ) { CKEDITOR.env.ie && trimFillers( element ); },
html : function( element )
{
delete element.attributes.contenteditable;
delete element.attributes[ 'class' ];
},
body : function( element )
{
delete element.attributes.spellcheck;
delete element.attributes.contenteditable;
},
style : function( element )
{
var child = element.children[ 0 ];
child && child.value && ( child.value = CKEDITOR.tools.trim( child.value ));
if ( !element.attributes.type )
element.attributes.type = 'text/css';
},
title : function( element )
{
var titleText = element.children[ 0 ];
titleText && ( titleText.value = element.attributes[ 'data-cke-title' ] || '' );
}
},
attributes :
{
'class' : function( value, element )
{
// Remove all class names starting with "cke_".
return CKEDITOR.tools.ltrim( value.replace( /(?:^|\s+)cke_[^\s]*/g, '' ) ) || false;
}
}
};
if ( CKEDITOR.env.ie )
{
// IE outputs style attribute in capital letters. We should convert
// them back to lower case, while not hurting the values (#5930)
defaultHtmlFilterRules.attributes.style = function( value, element )
{
return value.replace( /(^|;)([^\:]+)/g, function( match )
{
return match.toLowerCase();
});
};
}
function protectReadOnly( element )
{
var attrs = element.attributes;
// We should flag that the element was locked by our code so
// it'll be editable by the editor functions (#6046).
if ( attrs.contenteditable != "false" )
attrs[ 'data-cke-editable' ] = attrs.contenteditable ? 'true' : 1;
attrs.contenteditable = "false";
}
function unprotectReadyOnly( element )
{
var attrs = element.attributes;
switch( attrs[ 'data-cke-editable' ] )
{
case 'true': attrs.contenteditable = 'true'; break;
case '1': delete attrs.contenteditable; break;
}
}
// Disable form elements editing mode provided by some browers. (#5746)
for ( i in { input : 1, textarea : 1 } )
{
defaultDataFilterRules.elements[ i ] = protectReadOnly;
defaultHtmlFilterRules.elements[ i ] = unprotectReadyOnly;
}
var protectElementRegex = /<(a|area|img|input)\b([^>]*)>/gi,
protectAttributeRegex = /\b(on\w+|href|src|name)\s*=\s*(?:(?:"[^"]*")|(?:'[^']*')|(?:[^ "'>]+))/gi;
var protectElementsRegex = /(?:<style(?=[ >])[^>]*>[\s\S]*<\/style>)|(?:<(:?link|meta|base)[^>]*>)/gi,
encodedElementsRegex = /<cke:encoded>([^<]*)<\/cke:encoded>/gi;
var protectElementNamesRegex = /(<\/?)((?:object|embed|param|html|body|head|title)[^>]*>)/gi,
unprotectElementNamesRegex = /(<\/?)cke:((?:html|body|head|title)[^>]*>)/gi;
var protectSelfClosingRegex = /<cke:(param|embed)([^>]*?)\/?>(?!\s*<\/cke:\1)/gi;
function protectAttributes( html )
{
return html.replace( protectElementRegex, function( element, tag, attributes )
{
return '<' + tag + attributes.replace( protectAttributeRegex, function( fullAttr, attrName )
{
// Avoid corrupting the inline event attributes (#7243).
// We should not rewrite the existed protected attributes, e.g. clipboard content from editor. (#5218)
if ( !( /^on/ ).test( attrName ) && attributes.indexOf( 'data-cke-saved-' + attrName ) == -1 )
return ' data-cke-saved-' + fullAttr + ' data-cke-' + CKEDITOR.rnd + '-' + fullAttr;
return fullAttr;
}) + '>';
});
}
function protectElements( html )
{
return html.replace( protectElementsRegex, function( match )
{
return '<cke:encoded>' + encodeURIComponent( match ) + '</cke:encoded>';
});
}
function unprotectElements( html )
{
return html.replace( encodedElementsRegex, function( match, encoded )
{
return decodeURIComponent( encoded );
});
}
function protectElementsNames( html )
{
return html.replace( protectElementNamesRegex, '$1cke:$2');
}
function unprotectElementNames( html )
{
return html.replace( unprotectElementNamesRegex, '$1$2' );
}
function protectSelfClosingElements( html )
{
return html.replace( protectSelfClosingRegex, '<cke:$1$2></cke:$1>' );
}
function protectPreFormatted( html )
{
return html.replace( /(<pre\b[^>]*>)(\r\n|\n)/g, '$1$2$2' );
}
function protectRealComments( html )
{
return html.replace( /<!--(?!{cke_protected})[\s\S]+?-->/g, function( match )
{
return '<!--' + protectedSourceMarker +
'{C}' +
encodeURIComponent( match ).replace( /--/g, '%2D%2D' ) +
'-->';
});
}
function unprotectRealComments( html )
{
return html.replace( /<!--\{cke_protected\}\{C\}([\s\S]+?)-->/g, function( match, data )
{
return decodeURIComponent( data );
});
}
function unprotectSource( html, editor )
{
var store = editor._.dataStore;
return html.replace( /<!--\{cke_protected\}([\s\S]+?)-->/g, function( match, data )
{
return decodeURIComponent( data );
}).replace( /\{cke_protected_(\d+)\}/g, function( match, id )
{
return store && store[ id ] || '';
});
}
function protectSource( data, editor )
{
var protectedHtml = [],
protectRegexes = editor.config.protectedSource,
store = editor._.dataStore || ( editor._.dataStore = { id : 1 } ),
tempRegex = /<\!--\{cke_temp(comment)?\}(\d*?)-->/g;
var regexes =
[
// Script tags will also be forced to be protected, otherwise
// IE will execute them.
( /<script[\s\S]*?<\/script>/gi ),
// <noscript> tags (get lost in IE and messed up in FF).
/<noscript[\s\S]*?<\/noscript>/gi
]
.concat( protectRegexes );
// First of any other protection, we must protect all comments
// to avoid loosing them (of course, IE related).
// Note that we use a different tag for comments, as we need to
// transform them when applying filters.
data = data.replace( (/<!--[\s\S]*?-->/g), function( match )
{
return '<!--{cke_tempcomment}' + ( protectedHtml.push( match ) - 1 ) + '-->';
});
for ( var i = 0 ; i < regexes.length ; i++ )
{
data = data.replace( regexes[i], function( match )
{
match = match.replace( tempRegex, // There could be protected source inside another one. (#3869).
function( $, isComment, id )
{
return protectedHtml[ id ];
}
);
// Avoid protecting over protected, e.g. /\{.*?\}/
return ( /cke_temp(comment)?/ ).test( match ) ? match
: '<!--{cke_temp}' + ( protectedHtml.push( match ) - 1 ) + '-->';
});
}
data = data.replace( tempRegex, function( $, isComment, id )
{
return '<!--' + protectedSourceMarker +
( isComment ? '{C}' : '' ) +
encodeURIComponent( protectedHtml[ id ] ).replace( /--/g, '%2D%2D' ) +
'-->';
}
);
// Different protection pattern is used for those that
// live in attributes to avoid from being HTML encoded.
return data.replace( /(['"]).*?\1/g, function ( match )
{
return match.replace( /<!--\{cke_protected\}([\s\S]+?)-->/g, function( match, data )
{
store[ store.id ] = decodeURIComponent( data );
return '{cke_protected_'+ ( store.id++ ) + '}';
});
});
}
CKEDITOR.plugins.add( 'htmldataprocessor',
{
requires : [ 'htmlwriter' ],
init : function( editor )
{
var dataProcessor = editor.dataProcessor = new CKEDITOR.htmlDataProcessor( editor );
dataProcessor.writer.forceSimpleAmpersand = editor.config.forceSimpleAmpersand;
dataProcessor.dataFilter.addRules( defaultDataFilterRules );
dataProcessor.dataFilter.addRules( defaultDataBlockFilterRules );
dataProcessor.htmlFilter.addRules( defaultHtmlFilterRules );
var defaultHtmlBlockFilterRules = { elements : {} };
for ( i in blockLikeTags )
defaultHtmlBlockFilterRules.elements[ i ] = getBlockExtension( true, editor.config.fillEmptyBlocks );
dataProcessor.htmlFilter.addRules( defaultHtmlBlockFilterRules );
},
onLoad : function()
{
! ( 'fillEmptyBlocks' in CKEDITOR.config ) && ( CKEDITOR.config.fillEmptyBlocks = 1 );
}
});
CKEDITOR.htmlDataProcessor = function( editor )
{
this.editor = editor;
this.writer = new CKEDITOR.htmlWriter();
this.dataFilter = new CKEDITOR.htmlParser.filter();
this.htmlFilter = new CKEDITOR.htmlParser.filter();
};
CKEDITOR.htmlDataProcessor.prototype =
{
toHtml : function( data, fixForBody )
{
// The source data is already HTML, but we need to clean
// it up and apply the filter.
data = protectSource( data, this.editor );
// Before anything, we must protect the URL attributes as the
// browser may changing them when setting the innerHTML later in
// the code.
data = protectAttributes( data );
// Protect elements than can't be set inside a DIV. E.g. IE removes
// style tags from innerHTML. (#3710)
data = protectElements( data );
// Certain elements has problem to go through DOM operation, protect
// them by prefixing 'cke' namespace. (#3591)
data = protectElementsNames( data );
// All none-IE browsers ignore self-closed custom elements,
// protecting them into open-close. (#3591)
data = protectSelfClosingElements( data );
// Compensate one leading line break after <pre> open as browsers
// eat it up. (#5789)
data = protectPreFormatted( data );
// Call the browser to help us fixing a possibly invalid HTML
// structure.
var div = new CKEDITOR.dom.element( 'div' );
// Add fake character to workaround IE comments bug. (#3801)
div.setHtml( 'a' + data );
data = div.getHtml().substr( 1 );
// Restore shortly protected attribute names.
data = data.replace( new RegExp( ' data-cke-' + CKEDITOR.rnd + '-', 'ig' ), ' ' );
// Unprotect "some" of the protected elements at this point.
data = unprotectElementNames( data );
data = unprotectElements( data );
// Restore the comments that have been protected, in this way they
// can be properly filtered.
data = unprotectRealComments( data );
// Now use our parser to make further fixes to the structure, as
// well as apply the filter.
var fragment = CKEDITOR.htmlParser.fragment.fromHtml( data, fixForBody ),
writer = new CKEDITOR.htmlParser.basicWriter();
fragment.writeHtml( writer, this.dataFilter );
data = writer.getHtml( true );
// Protect the real comments again.
data = protectRealComments( data );
return data;
},
toDataFormat : function( html, fixForBody )
{
var writer = this.writer,
fragment = CKEDITOR.htmlParser.fragment.fromHtml( html, fixForBody );
writer.reset();
fragment.writeHtml( writer, this.htmlFilter );
var data = writer.getHtml( true );
// Restore those non-HTML protected source. (#4475,#4880)
data = unprotectRealComments( data );
data = unprotectSource( data, this.editor );
return data;
}
};
})();
/**
* Whether to force using "&" instead of "&amp;" in elements attributes
* values, it's not recommended to change this setting for compliance with the
* W3C XHTML 1.0 standards (<a href="http://www.w3.org/TR/xhtml1/#C_12">C.12, XHTML 1.0</a>).
* @name CKEDITOR.config.forceSimpleAmpersand
* @name CKEDITOR.config.forceSimpleAmpersand
* @type Boolean
* @default false
* @example
* config.forceSimpleAmpersand = false;
*/
/**
* Whether a filler text (non-breaking space entity - ) will be inserted into empty block elements in HTML output,
* this is used to render block elements properly with line-height; When a function is instead specified,
* it'll be passed a {@link CKEDITOR.htmlParser.element} to decide whether adding the filler text
* by expecting a boolean return value.
* @name CKEDITOR.config.fillEmptyBlocks
* @since 3.5
* @type Boolean
* @default true
* @example
* config.fillEmptyBlocks = false; // Prevent filler nodes in all empty blocks.
*
* // Prevent filler node only in float cleaners.
* config.fillEmptyBlocks = function( element )
* {
* if ( element.attributes[ 'class' ].indexOf ( 'clear-both' ) != -1 )
* return false;
* }
*/
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