File: /home/u435929562/domains/srisuprabhathambuilder.com/public_html/public/js/ckeditor/core/style.js
/**
* @license Copyright (c) 2003-2013, CKSource - Frederico Knabben. All rights reserved.
* For licensing, see LICENSE.md or http://ckeditor.com/license
*/
/**
* Registers a function to be called whenever the selection position changes in the
* editing area. The current state is passed to the function. The possible
* states are {@link CKEDITOR#TRISTATE_ON} and {@link CKEDITOR#TRISTATE_OFF}.
*
* // Create a style object for the <b> element.
* var style = new CKEDITOR.style( { element: 'b' } );
* var editor = CKEDITOR.instances.editor1;
* editor.attachStyleStateChange( style, function( state ) {
* if ( state == CKEDITOR.TRISTATE_ON )
* alert( 'The current state for the B element is ON' );
* else
* alert( 'The current state for the B element is OFF' );
* } );
*
* @member CKEDITOR.editor
* @param {CKEDITOR.style} style The style to be watched.
* @param {Function} callback The function to be called.
*/
CKEDITOR.editor.prototype.attachStyleStateChange = function( style, callback ) {
// Try to get the list of attached callbacks.
var styleStateChangeCallbacks = this._.styleStateChangeCallbacks;
// If it doesn't exist, it means this is the first call. So, let's create
// all the structure to manage the style checks and the callback calls.
if ( !styleStateChangeCallbacks ) {
// Create the callbacks array.
styleStateChangeCallbacks = this._.styleStateChangeCallbacks = [];
// Attach to the selectionChange event, so we can check the styles at
// that point.
this.on( 'selectionChange', function( ev ) {
// Loop throw all registered callbacks.
for ( var i = 0; i < styleStateChangeCallbacks.length; i++ ) {
var callback = styleStateChangeCallbacks[ i ];
// Check the current state for the style defined for that
// callback.
var currentState = callback.style.checkActive( ev.data.path ) ? CKEDITOR.TRISTATE_ON : CKEDITOR.TRISTATE_OFF;
// Call the callback function, passing the current
// state to it.
callback.fn.call( this, currentState );
}
});
}
// Save the callback info, so it can be checked on the next occurrence of
// selectionChange.
styleStateChangeCallbacks.push( { style: style, fn: callback } );
};
CKEDITOR.STYLE_BLOCK = 1;
CKEDITOR.STYLE_INLINE = 2;
CKEDITOR.STYLE_OBJECT = 3;
(function() {
var blockElements = { address:1,div:1,h1:1,h2:1,h3:1,h4:1,h5:1,h6:1,p:1,pre:1,section:1,header:1,footer:1,nav:1,article:1,aside:1,figure:1,dialog:1,hgroup:1,time:1,meter:1,menu:1,command:1,keygen:1,output:1,progress:1,details:1,datagrid:1,datalist:1 },
objectElements = { a:1,embed:1,hr:1,img:1,li:1,object:1,ol:1,table:1,td:1,tr:1,th:1,ul:1,dl:1,dt:1,dd:1,form:1,audio:1,video:1 };
var semicolonFixRegex = /\s*(?:;\s*|$)/,
varRegex = /#\((.+?)\)/g;
var notBookmark = CKEDITOR.dom.walker.bookmark( 0, 1 ),
nonWhitespaces = CKEDITOR.dom.walker.whitespaces( 1 );
/**
* TODO...
*
* @class
* @constructor Creates a style class instance.
* @param styleDefinition
* @param variablesValues
* @todo
*/
CKEDITOR.style = function( styleDefinition, variablesValues ) {
// Inline style text as attribute should be converted
// to styles object.
var attrs = styleDefinition.attributes;
if ( attrs && attrs.style ) {
styleDefinition.styles = CKEDITOR.tools.extend( {},
styleDefinition.styles, CKEDITOR.tools.parseCssText( attrs.style ) );
delete attrs.style;
}
if ( variablesValues ) {
styleDefinition = CKEDITOR.tools.clone( styleDefinition );
replaceVariables( styleDefinition.attributes, variablesValues );
replaceVariables( styleDefinition.styles, variablesValues );
}
var element = this.element = styleDefinition.element ?
(typeof styleDefinition.element == 'string' ?
styleDefinition.element.toLowerCase() :
styleDefinition.element ) : '*';
this.type = styleDefinition.type ||
(blockElements[ element ] ? CKEDITOR.STYLE_BLOCK :
objectElements[ element ] ? CKEDITOR.STYLE_OBJECT :
CKEDITOR.STYLE_INLINE );
// If the 'element' property is an object with a set of possible element, it will be applied like an object style: only to existing elements
if ( typeof this.element == 'object' )
this.type = CKEDITOR.STYLE_OBJECT;
this._ = {
definition: styleDefinition
};
};
/**
* Apply the style upon the editor's current selection.
*
* @member CKEDITOR.editor
* @param {CKEDITOR.style} style
*/
CKEDITOR.editor.prototype.applyStyle = function( style ) {
applyStyleOnSelection.call( style, this.getSelection() );
};
/**
* Remove the style from the editor's current selection.
*
* @member CKEDITOR.editor
* @param {CKEDITOR.style} style
*/
CKEDITOR.editor.prototype.removeStyle = function( style ) {
applyStyleOnSelection.call( style, this.getSelection(), 1 );
};
CKEDITOR.style.prototype = {
/**
* @param {CKEDITOR.dom.document} document
* @todo
*/
apply: function( document ) {
applyStyleOnSelection.call( this, document.getSelection() );
},
/**
* @param {CKEDITOR.dom.document} document
* @todo
*/
remove: function( document ) {
applyStyleOnSelection.call( this, document.getSelection(), 1 );
},
/**
* @param {CKEDITOR.dom.range} range
* @todo
*/
applyToRange: function( range ) {
return ( this.applyToRange =
this.type == CKEDITOR.STYLE_INLINE ? applyInlineStyle :
this.type == CKEDITOR.STYLE_BLOCK ? applyBlockStyle :
this.type == CKEDITOR.STYLE_OBJECT ? applyObjectStyle :
null ).call( this, range );
},
/**
* @param {CKEDITOR.dom.range} range
* @todo
*/
removeFromRange: function( range ) {
return ( this.removeFromRange =
this.type == CKEDITOR.STYLE_INLINE ? removeInlineStyle :
this.type == CKEDITOR.STYLE_BLOCK ? removeBlockStyle :
this.type == CKEDITOR.STYLE_OBJECT ? removeObjectStyle :
null ).call( this, range );
},
/**
* @param {CKEDITOR.dom.element} element
* @todo
*/
applyToObject: function( element ) {
setupElement( element, this );
},
/**
* Get the style state inside an element path.
*
* @param {CKEDITOR.dom.elementPath} elementPath
* @returns {Boolean} `true` if the element is active in the path.
*/
checkActive: function( elementPath ) {
switch ( this.type ) {
case CKEDITOR.STYLE_BLOCK:
return this.checkElementRemovable( elementPath.block || elementPath.blockLimit, true );
case CKEDITOR.STYLE_OBJECT:
case CKEDITOR.STYLE_INLINE:
var elements = elementPath.elements;
for ( var i = 0, element; i < elements.length; i++ ) {
element = elements[ i ];
if ( this.type == CKEDITOR.STYLE_INLINE && ( element == elementPath.block || element == elementPath.blockLimit ) )
continue;
if ( this.type == CKEDITOR.STYLE_OBJECT ) {
var name = element.getName();
if ( !( typeof this.element == 'string' ? name == this.element : name in this.element ) )
continue;
}
if ( this.checkElementRemovable( element, true ) )
return true;
}
}
return false;
},
/**
* Whether this style can be applied at the element path.
*
* @param {CKEDITOR.dom.elementPath} elementPath
* @returns {Boolean} `true` if this style can be applied at the element path.
*/
checkApplicable: function( elementPath ) {
switch ( this.type ) {
case CKEDITOR.STYLE_INLINE:
case CKEDITOR.STYLE_BLOCK:
break;
case CKEDITOR.STYLE_OBJECT:
return elementPath.contains( this.element );
}
return true;
},
/**
* Check if the element matches the current style definition.
*
* @param {CKEDITOR.dom.element} element
* @param {Boolean} fullMatch
* @returns {Boolean}
* @todo
*/
checkElementMatch: function( element, fullMatch ) {
var def = this._.definition;
if ( !element || !def.ignoreReadonly && element.isReadOnly() )
return false;
var attribs,
name = element.getName();
// If the element name is the same as the style name.
if ( typeof this.element == 'string' ? name == this.element : name in this.element ) {
// If no attributes are defined in the element.
if ( !fullMatch && !element.hasAttributes() )
return true;
attribs = getAttributesForComparison( def );
if ( attribs._length ) {
for ( var attName in attribs ) {
if ( attName == '_length' )
continue;
var elementAttr = element.getAttribute( attName ) || '';
// Special treatment for 'style' attribute is required.
if ( attName == 'style' ?
compareCssText( attribs[ attName ], elementAttr ) :
attribs[ attName ] == elementAttr )
{
if ( !fullMatch )
return true;
} else if ( fullMatch )
return false;
}
if ( fullMatch )
return true;
} else
return true;
}
return false;
},
/**
* Checks if an element, or any of its attributes, is removable by the
* current style definition.
*
* @param {CKEDITOR.dom.element} element
* @param {Boolean} fullMatch
* @returns {Boolean}
* @todo
*/
checkElementRemovable: function( element, fullMatch ) {
// Check element matches the style itself.
if ( this.checkElementMatch( element, fullMatch ) )
return true;
// Check if the element matches the style overrides.
var override = getOverrides( this )[ element.getName() ];
if ( override ) {
var attribs, attName;
// If no attributes have been defined, remove the element.
if ( !( attribs = override.attributes ) )
return true;
for ( var i = 0; i < attribs.length; i++ ) {
attName = attribs[ i ][ 0 ];
var actualAttrValue = element.getAttribute( attName );
if ( actualAttrValue ) {
var attValue = attribs[ i ][ 1 ];
// Remove the attribute if:
// - The override definition value is null;
// - The override definition value is a string that
// matches the attribute value exactly.
// - The override definition value is a regex that
// has matches in the attribute value.
if ( attValue === null ||
( typeof attValue == 'string' &&
actualAttrValue == attValue ) ||
attValue.test( actualAttrValue ) )
return true;
}
}
}
return false;
},
/**
* Builds the preview HTML based on the styles definition.
*
* @param label
* @todo
*/
buildPreview: function( label ) {
var styleDefinition = this._.definition,
html = [],
elementName = styleDefinition.element;
// Avoid <bdo> in the preview.
if ( elementName == 'bdo' )
elementName = 'span';
html = [ '<', elementName ];
// Assign all defined attributes.
var attribs = styleDefinition.attributes;
if ( attribs ) {
for ( var att in attribs ) {
html.push( ' ', att, '="', attribs[ att ], '"' );
}
}
// Assign the style attribute.
var cssStyle = CKEDITOR.style.getStyleText( styleDefinition );
if ( cssStyle )
html.push( ' style="', cssStyle, '"' );
html.push( '>', ( label || styleDefinition.name ), '</', elementName, '>' );
return html.join( '' );
},
getDefinition: function() {
return this._.definition;
}
};
/**
* Build the cssText based on the styles definition.
*
* @static
* @param styleDefinition
* @returns {String}
* @todo
*/
CKEDITOR.style.getStyleText = function( styleDefinition ) {
// If we have already computed it, just return it.
var stylesDef = styleDefinition._ST;
if ( stylesDef )
return stylesDef;
stylesDef = styleDefinition.styles;
// Builds the StyleText.
var stylesText = ( styleDefinition.attributes && styleDefinition.attributes[ 'style' ] ) || '',
specialStylesText = '';
if ( stylesText.length )
stylesText = stylesText.replace( semicolonFixRegex, ';' );
for ( var style in stylesDef ) {
var styleVal = stylesDef[ style ],
text = ( style + ':' + styleVal ).replace( semicolonFixRegex, ';' );
// Some browsers don't support 'inherit' property value, leave them intact. (#5242)
if ( styleVal == 'inherit' )
specialStylesText += text;
else
stylesText += text;
}
// Browsers make some changes to the style when applying them. So, here
// we normalize it to the browser format.
if ( stylesText.length )
stylesText = CKEDITOR.tools.normalizeCssText( stylesText, true );
stylesText += specialStylesText;
// Return it, saving it to the next request.
return ( styleDefinition._ST = stylesText );
};
// Gets the parent element which blocks the styling for an element. This
// can be done through read-only elements (contenteditable=false) or
// elements with the "data-nostyle" attribute.
function getUnstylableParent( element, root ) {
var unstylable, editable;
while ( ( element = element.getParent() ) ) {
if ( element.equals( root ) )
break;
if ( element.getAttribute( 'data-nostyle' ) )
unstylable = element;
else if ( !editable ) {
var contentEditable = element.getAttribute( 'contentEditable' );
if ( contentEditable == 'false' )
unstylable = element;
else if ( contentEditable == 'true' )
editable = 1;
}
}
return unstylable;
}
function applyInlineStyle( range ) {
var document = range.document;
if ( range.collapsed ) {
// Create the element to be inserted in the DOM.
var collapsedElement = getElement( this, document );
// Insert the empty element into the DOM at the range position.
range.insertNode( collapsedElement );
// Place the selection right inside the empty element.
range.moveToPosition( collapsedElement, CKEDITOR.POSITION_BEFORE_END );
return;
}
var elementName = this.element;
var def = this._.definition;
var isUnknownElement;
// Indicates that fully selected read-only elements are to be included in the styling range.
var ignoreReadonly = def.ignoreReadonly,
includeReadonly = ignoreReadonly || def.includeReadonly;
// If the read-only inclusion is not available in the definition, try
// to get it from the root data (most often it's the editable).
if ( includeReadonly == undefined )
includeReadonly = range.root.getCustomData( 'cke_includeReadonly' );
// Get the DTD definition for the element. Defaults to "span".
var dtd = CKEDITOR.dtd[ elementName ] || ( isUnknownElement = true, CKEDITOR.dtd.span );
// Expand the range.
range.enlarge( CKEDITOR.ENLARGE_INLINE, 1 );
range.trim();
// Get the first node to be processed and the last, which concludes the
// processing.
var boundaryNodes = range.createBookmark(),
firstNode = boundaryNodes.startNode,
lastNode = boundaryNodes.endNode;
var currentNode = firstNode;
var styleRange;
if ( !ignoreReadonly ) {
// Check if the boundaries are inside non stylable elements.
var root = range.getCommonAncestor(),
firstUnstylable = getUnstylableParent( firstNode, root ),
lastUnstylable = getUnstylableParent( lastNode, root );
// If the first element can't be styled, we'll start processing right
// after its unstylable root.
if ( firstUnstylable )
currentNode = firstUnstylable.getNextSourceNode( true );
// If the last element can't be styled, we'll stop processing on its
// unstylable root.
if ( lastUnstylable )
lastNode = lastUnstylable;
}
// Do nothing if the current node now follows the last node to be processed.
if ( currentNode.getPosition( lastNode ) == CKEDITOR.POSITION_FOLLOWING )
currentNode = 0;
while ( currentNode ) {
var applyStyle = false;
if ( currentNode.equals( lastNode ) ) {
currentNode = null;
applyStyle = true;
} else {
var nodeType = currentNode.type;
var nodeName = nodeType == CKEDITOR.NODE_ELEMENT ? currentNode.getName() : null;
var nodeIsReadonly = nodeName && ( currentNode.getAttribute( 'contentEditable' ) == 'false' );
var nodeIsNoStyle = nodeName && currentNode.getAttribute( 'data-nostyle' );
if ( nodeName && currentNode.data( 'cke-bookmark' ) ) {
currentNode = currentNode.getNextSourceNode( true );
continue;
}
// Check if the current node can be a child of the style element.
if ( !nodeName ||
( dtd[ nodeName ] && !nodeIsNoStyle &&
( !nodeIsReadonly || includeReadonly ) &&
( currentNode.getPosition( lastNode ) |
CKEDITOR.POSITION_PRECEDING | CKEDITOR.POSITION_IDENTICAL |
CKEDITOR.POSITION_IS_CONTAINED ) ==
( CKEDITOR.POSITION_PRECEDING + CKEDITOR.POSITION_IDENTICAL +
CKEDITOR.POSITION_IS_CONTAINED ) &&
( !def.childRule || def.childRule( currentNode ) ) ) ) {
var currentParent = currentNode.getParent();
// Check if the style element can be a child of the current
// node parent or if the element is not defined in the DTD.
if ( currentParent &&
( ( currentParent.getDtd() ||
CKEDITOR.dtd.span )[ elementName ] || isUnknownElement ) &&
( !def.parentRule || def.parentRule( currentParent ) ) ) {
// This node will be part of our range, so if it has not
// been started, place its start right before the node.
// In the case of an element node, it will be included
// only if it is entirely inside the range.
if ( !styleRange &&
( !nodeName || !CKEDITOR.dtd.$removeEmpty[ nodeName ] ||
( currentNode.getPosition( lastNode ) |
CKEDITOR.POSITION_PRECEDING | CKEDITOR.POSITION_IDENTICAL |
CKEDITOR.POSITION_IS_CONTAINED ) ==
( CKEDITOR.POSITION_PRECEDING + CKEDITOR.POSITION_IDENTICAL +
CKEDITOR.POSITION_IS_CONTAINED ) ) ) {
styleRange = range.clone();
styleRange.setStartBefore( currentNode );
}
// Non element nodes, readonly elements, or empty
// elements can be added completely to the range.
if ( nodeType == CKEDITOR.NODE_TEXT || nodeIsReadonly ||
( nodeType == CKEDITOR.NODE_ELEMENT &&
!currentNode.getChildCount() ) ) {
var includedNode = currentNode;
var parentNode;
// This node is about to be included completelly, but,
// if this is the last node in its parent, we must also
// check if the parent itself can be added completelly
// to the range, otherwise apply the style immediately.
while ( ( applyStyle = !includedNode.getNext( notBookmark ) ) &&
( parentNode = includedNode.getParent(), dtd[ parentNode.getName() ] ) &&
( parentNode.getPosition( firstNode ) |
CKEDITOR.POSITION_FOLLOWING |
CKEDITOR.POSITION_IDENTICAL |
CKEDITOR.POSITION_IS_CONTAINED ) ==
( CKEDITOR.POSITION_FOLLOWING +
CKEDITOR.POSITION_IDENTICAL +
CKEDITOR.POSITION_IS_CONTAINED ) &&
( !def.childRule || def.childRule( parentNode ) ) ) {
includedNode = parentNode;
}
styleRange.setEndAfter( includedNode );
}
} else
applyStyle = true;
} else
applyStyle = true;
// Get the next node to be processed.
currentNode = currentNode.getNextSourceNode( nodeIsNoStyle || nodeIsReadonly && !includeReadonly );
}
// Apply the style if we have something to which apply it.
if ( applyStyle && styleRange && !styleRange.collapsed ) {
// Build the style element, based on the style object definition.
var styleNode = getElement( this, document ),
styleHasAttrs = styleNode.hasAttributes();
// Get the element that holds the entire range.
var parent = styleRange.getCommonAncestor();
var removeList = {
styles: {},
attrs: {},
// Styles cannot be removed.
blockedStyles: {},
// Attrs cannot be removed.
blockedAttrs: {}
};
var attName, styleName, value;
// Loop through the parents, removing the redundant attributes
// from the element to be applied.
while ( styleNode && parent ) {
if ( parent.getName() == elementName ) {
for ( attName in def.attributes ) {
if ( removeList.blockedAttrs[ attName ] || !( value = parent.getAttribute( styleName ) ) )
continue;
if ( styleNode.getAttribute( attName ) == value )
removeList.attrs[ attName ] = 1;
else
removeList.blockedAttrs[ attName ] = 1;
}
for ( styleName in def.styles ) {
if ( removeList.blockedStyles[ styleName ] || !( value = parent.getStyle( styleName ) ) )
continue;
if ( styleNode.getStyle( styleName ) == value )
removeList.styles[ styleName ] = 1;
else
removeList.blockedStyles[ styleName ] = 1;
}
}
parent = parent.getParent();
}
for ( attName in removeList.attrs )
styleNode.removeAttribute( attName );
for ( styleName in removeList.styles )
styleNode.removeStyle( styleName );
if ( styleHasAttrs && !styleNode.hasAttributes() )
styleNode = null;
if ( styleNode ) {
// Move the contents of the range to the style element.
styleRange.extractContents().appendTo( styleNode );
// Here we do some cleanup, removing all duplicated
// elements from the style element.
removeFromInsideElement.call( this, styleNode );
// Insert it into the range position (it is collapsed after
// extractContents.
styleRange.insertNode( styleNode );
// Let's merge our new style with its neighbors, if possible.
styleNode.mergeSiblings();
// As the style system breaks text nodes constantly, let's normalize
// things for performance.
// With IE, some paragraphs get broken when calling normalize()
// repeatedly. Also, for IE, we must normalize body, not documentElement.
// IE is also known for having a "crash effect" with normalize().
// We should try to normalize with IE too in some way, somewhere.
if ( !CKEDITOR.env.ie )
styleNode.$.normalize();
}
// Style already inherit from parents, left just to clear up any internal overrides. (#5931)
else {
styleNode = new CKEDITOR.dom.element( 'span' );
styleRange.extractContents().appendTo( styleNode );
styleRange.insertNode( styleNode );
removeFromInsideElement.call( this, styleNode );
styleNode.remove( true );
}
// Style applied, let's release the range, so it gets
// re-initialization in the next loop.
styleRange = null;
}
}
// Remove the bookmark nodes.
range.moveToBookmark( boundaryNodes );
// Minimize the result range to exclude empty text nodes. (#5374)
range.shrink( CKEDITOR.SHRINK_TEXT );
}
function removeInlineStyle( range ) {
// Make sure our range has included all "collpased" parent inline nodes so
// that our operation logic can be simpler.
range.enlarge( CKEDITOR.ENLARGE_INLINE, 1 );
var bookmark = range.createBookmark(),
startNode = bookmark.startNode;
if ( range.collapsed ) {
var startPath = new CKEDITOR.dom.elementPath( startNode.getParent(), range.root ),
// The topmost element in elementspatch which we should jump out of.
boundaryElement;
for ( var i = 0, element; i < startPath.elements.length && ( element = startPath.elements[ i ] ); i++ ) {
// 1. If it's collaped inside text nodes, try to remove the style from the whole element.
//
// 2. Otherwise if it's collapsed on element boundaries, moving the selection
// outside the styles instead of removing the whole tag,
// also make sure other inner styles were well preserverd.(#3309)
if ( element == startPath.block || element == startPath.blockLimit )
break;
if ( this.checkElementRemovable( element ) ) {
var isStart;
if ( range.collapsed && ( range.checkBoundaryOfElement( element, CKEDITOR.END ) || ( isStart = range.checkBoundaryOfElement( element, CKEDITOR.START ) ) ) ) {
boundaryElement = element;
boundaryElement.match = isStart ? 'start' : 'end';
} else {
/*
* Before removing the style node, there may be a sibling to the style node
* that's exactly the same to the one to be removed. To the user, it makes
* no difference that they're separate entities in the DOM tree. So, merge
* them before removal.
*/
element.mergeSiblings();
if ( element.getName() == this.element )
removeFromElement.call( this, element );
else
removeOverrides( element, getOverrides( this )[ element.getName() ] );
}
}
}
// Re-create the style tree after/before the boundary element,
// the replication start from bookmark start node to define the
// new range.
if ( boundaryElement ) {
var clonedElement = startNode;
for ( i = 0;; i++ ) {
var newElement = startPath.elements[ i ];
if ( newElement.equals( boundaryElement ) )
break;
// Avoid copying any matched element.
else if ( newElement.match )
continue;
else
newElement = newElement.clone();
newElement.append( clonedElement );
clonedElement = newElement;
}
clonedElement[ boundaryElement.match == 'start' ? 'insertBefore' : 'insertAfter' ]( boundaryElement );
}
} else {
// Now our range isn't collapsed. Lets walk from the start node to the end
// node via DFS and remove the styles one-by-one.
var endNode = bookmark.endNode,
me = this;
// Find out the style ancestor that needs to be broken down at startNode
// and endNode.
function breakNodes() {
var startPath = new CKEDITOR.dom.elementPath( startNode.getParent() ),
endPath = new CKEDITOR.dom.elementPath( endNode.getParent() ),
breakStart = null,
breakEnd = null;
for ( var i = 0; i < startPath.elements.length; i++ ) {
var element = startPath.elements[ i ];
if ( element == startPath.block || element == startPath.blockLimit )
break;
if ( me.checkElementRemovable( element ) )
breakStart = element;
}
for ( i = 0; i < endPath.elements.length; i++ ) {
element = endPath.elements[ i ];
if ( element == endPath.block || element == endPath.blockLimit )
break;
if ( me.checkElementRemovable( element ) )
breakEnd = element;
}
if ( breakEnd )
endNode.breakParent( breakEnd );
if ( breakStart )
startNode.breakParent( breakStart );
}
breakNodes();
// Now, do the DFS walk.
var currentNode = startNode;
while ( !currentNode.equals( endNode ) ) {
// Need to get the next node first because removeFromElement() can remove
// the current node from DOM tree.
var nextNode = currentNode.getNextSourceNode();
if ( currentNode.type == CKEDITOR.NODE_ELEMENT && this.checkElementRemovable( currentNode ) ) {
// Remove style from element or overriding element.
if ( currentNode.getName() == this.element )
removeFromElement.call( this, currentNode );
else
removeOverrides( currentNode, getOverrides( this )[ currentNode.getName() ] );
// removeFromElement() may have merged the next node with something before
// the startNode via mergeSiblings(). In that case, the nextNode would
// contain startNode and we'll have to call breakNodes() again and also
// reassign the nextNode to something after startNode.
if ( nextNode.type == CKEDITOR.NODE_ELEMENT && nextNode.contains( startNode ) ) {
breakNodes();
nextNode = startNode.getNext();
}
}
currentNode = nextNode;
}
}
range.moveToBookmark( bookmark );
}
function applyObjectStyle( range ) {
// Selected or parent element. (#9651)
var start = range.getEnclosedNode() || range.getCommonAncestor( false, true ),
element = new CKEDITOR.dom.elementPath( start, range.root ).contains( this.element, 1 );
element && !element.isReadOnly() && setupElement( element, this );
}
function removeObjectStyle( range ) {
var parent = range.getCommonAncestor( true, true ),
element = new CKEDITOR.dom.elementPath( parent, range.root ).contains( this.element, 1 );
if ( !element )
return;
var style = this,
def = style._.definition,
attributes = def.attributes;
// Remove all defined attributes.
if ( attributes ) {
for ( var att in attributes ) {
element.removeAttribute( att, attributes[ att ] );
}
}
// Assign all defined styles.
if ( def.styles ) {
for ( var i in def.styles ) {
if ( !def.styles.hasOwnProperty( i ) )
continue;
element.removeStyle( i );
}
}
}
function applyBlockStyle( range ) {
// Serializible bookmarks is needed here since
// elements may be merged.
var bookmark = range.createBookmark( true );
var iterator = range.createIterator();
iterator.enforceRealBlocks = true;
// make recognize <br /> tag as a separator in ENTER_BR mode (#5121)
if ( this._.enterMode )
iterator.enlargeBr = ( this._.enterMode != CKEDITOR.ENTER_BR );
var block;
var doc = range.document;
var previousPreBlock;
while ( ( block = iterator.getNextParagraph() ) ) // Only one =
{
if ( !block.isReadOnly() ) {
var newBlock = getElement( this, doc, block );
replaceBlock( block, newBlock );
}
}
range.moveToBookmark( bookmark );
}
function removeBlockStyle( range ) {
// Serializible bookmarks is needed here since
// elements may be merged.
var bookmark = range.createBookmark( 1 );
var iterator = range.createIterator();
iterator.enforceRealBlocks = true;
iterator.enlargeBr = this._.enterMode != CKEDITOR.ENTER_BR;
var block;
while ( ( block = iterator.getNextParagraph() ) ) {
if ( this.checkElementRemovable( block ) ) {
// <pre> get special treatment.
if ( block.is( 'pre' ) ) {
var newBlock = this._.enterMode == CKEDITOR.ENTER_BR ? null :
range.document.createElement( this._.enterMode == CKEDITOR.ENTER_P ? 'p' : 'div' );
newBlock && block.copyAttributes( newBlock );
replaceBlock( block, newBlock );
} else
removeFromElement.call( this, block );
}
}
range.moveToBookmark( bookmark );
}
// Replace the original block with new one, with special treatment
// for <pre> blocks to make sure content format is well preserved, and merging/splitting adjacent
// when necessary. (#3188)
function replaceBlock( block, newBlock ) {
// Block is to be removed, create a temp element to
// save contents.
var removeBlock = !newBlock;
if ( removeBlock ) {
newBlock = block.getDocument().createElement( 'div' );
block.copyAttributes( newBlock );
}
var newBlockIsPre = newBlock && newBlock.is( 'pre' );
var blockIsPre = block.is( 'pre' );
var isToPre = newBlockIsPre && !blockIsPre;
var isFromPre = !newBlockIsPre && blockIsPre;
if ( isToPre )
newBlock = toPre( block, newBlock );
else if ( isFromPre )
// Split big <pre> into pieces before start to convert.
newBlock = fromPres( removeBlock ? [ block.getHtml() ] : splitIntoPres( block ), newBlock );
else
block.moveChildren( newBlock );
newBlock.replace( block );
if ( newBlockIsPre ) {
// Merge previous <pre> blocks.
mergePre( newBlock );
} else if ( removeBlock )
removeNoAttribsElement( newBlock );
}
// Merge a <pre> block with a previous sibling if available.
function mergePre( preBlock ) {
var previousBlock;
if ( !( ( previousBlock = preBlock.getPrevious( nonWhitespaces ) ) && previousBlock.is && previousBlock.is( 'pre' ) ) )
return;
// Merge the previous <pre> block contents into the current <pre>
// block.
//
// Another thing to be careful here is that currentBlock might contain
// a '\n' at the beginning, and previousBlock might contain a '\n'
// towards the end. These new lines are not normally displayed but they
// become visible after merging.
var mergedHtml = replace( previousBlock.getHtml(), /\n$/, '' ) + '\n\n' +
replace( preBlock.getHtml(), /^\n/, '' );
// Krugle: IE normalizes innerHTML from <pre>, breaking whitespaces.
if ( CKEDITOR.env.ie )
preBlock.$.outerHTML = '<pre>' + mergedHtml + '</pre>';
else
preBlock.setHtml( mergedHtml );
previousBlock.remove();
}
// Split into multiple <pre> blocks separated by double line-break.
function splitIntoPres( preBlock ) {
// Exclude the ones at header OR at tail,
// and ignore bookmark content between them.
var duoBrRegex = /(\S\s*)\n(?:\s|(<span[^>]+data-cke-bookmark.*?\/span>))*\n(?!$)/gi,
blockName = preBlock.getName(),
splitedHtml = replace( preBlock.getOuterHtml(), duoBrRegex, function( match, charBefore, bookmark ) {
return charBefore + '</pre>' + bookmark + '<pre>';
});
var pres = [];
splitedHtml.replace( /<pre\b.*?>([\s\S]*?)<\/pre>/gi, function( match, preContent ) {
pres.push( preContent );
});
return pres;
}
// Wrapper function of String::replace without considering of head/tail bookmarks nodes.
function replace( str, regexp, replacement ) {
var headBookmark = '',
tailBookmark = '';
str = str.replace( /(^<span[^>]+data-cke-bookmark.*?\/span>)|(<span[^>]+data-cke-bookmark.*?\/span>$)/gi, function( str, m1, m2 ) {
m1 && ( headBookmark = m1 );
m2 && ( tailBookmark = m2 );
return '';
});
return headBookmark + str.replace( regexp, replacement ) + tailBookmark;
}
// Converting a list of <pre> into blocks with format well preserved.
function fromPres( preHtmls, newBlock ) {
var docFrag;
if ( preHtmls.length > 1 )
docFrag = new CKEDITOR.dom.documentFragment( newBlock.getDocument() );
for ( var i = 0; i < preHtmls.length; i++ ) {
var blockHtml = preHtmls[ i ];
// 1. Trim the first and last line-breaks immediately after and before <pre>,
// they're not visible.
blockHtml = blockHtml.replace( /(\r\n|\r)/g, '\n' );
blockHtml = replace( blockHtml, /^[ \t]*\n/, '' );
blockHtml = replace( blockHtml, /\n$/, '' );
// 2. Convert spaces or tabs at the beginning or at the end to
blockHtml = replace( blockHtml, /^[ \t]+|[ \t]+$/g, function( match, offset, s ) {
if ( match.length == 1 ) // one space, preserve it
return ' ';
else if ( !offset ) // beginning of block
return CKEDITOR.tools.repeat( ' ', match.length - 1 ) + ' ';
else // end of block
return ' ' + CKEDITOR.tools.repeat( ' ', match.length - 1 );
});
// 3. Convert \n to <BR>.
// 4. Convert contiguous (i.e. non-singular) spaces or tabs to
blockHtml = blockHtml.replace( /\n/g, '<br>' );
blockHtml = blockHtml.replace( /[ \t]{2,}/g, function( match ) {
return CKEDITOR.tools.repeat( ' ', match.length - 1 ) + ' ';
});
if ( docFrag ) {
var newBlockClone = newBlock.clone();
newBlockClone.setHtml( blockHtml );
docFrag.append( newBlockClone );
} else
newBlock.setHtml( blockHtml );
}
return docFrag || newBlock;
}
// Converting from a non-PRE block to a PRE block in formatting operations.
function toPre( block, newBlock ) {
var bogus = block.getBogus();
bogus && bogus.remove();
// First trim the block content.
var preHtml = block.getHtml();
// 1. Trim head/tail spaces, they're not visible.
preHtml = replace( preHtml, /(?:^[ \t\n\r]+)|(?:[ \t\n\r]+$)/g, '' );
// 2. Delete ANSI whitespaces immediately before and after <BR> because
// they are not visible.
preHtml = preHtml.replace( /[ \t\r\n]*(<br[^>]*>)[ \t\r\n]*/gi, '$1' );
// 3. Compress other ANSI whitespaces since they're only visible as one
// single space previously.
// 4. Convert to spaces since is no longer needed in <PRE>.
preHtml = preHtml.replace( /([ \t\n\r]+| )/g, ' ' );
// 5. Convert any <BR /> to \n. This must not be done earlier because
// the \n would then get compressed.
preHtml = preHtml.replace( /<br\b[^>]*>/gi, '\n' );
// Krugle: IE normalizes innerHTML to <pre>, breaking whitespaces.
if ( CKEDITOR.env.ie ) {
var temp = block.getDocument().createElement( 'div' );
temp.append( newBlock );
newBlock.$.outerHTML = '<pre>' + preHtml + '</pre>';
newBlock.copyAttributes( temp.getFirst() );
newBlock = temp.getFirst().remove();
} else
newBlock.setHtml( preHtml );
return newBlock;
}
// Removes a style from an element itself, don't care about its subtree.
function removeFromElement( element ) {
var def = this._.definition,
attributes = def.attributes,
styles = def.styles,
overrides = getOverrides( this )[ element.getName() ],
// If the style is only about the element itself, we have to remove the element.
removeEmpty = CKEDITOR.tools.isEmpty( attributes ) && CKEDITOR.tools.isEmpty( styles );
// Remove definition attributes/style from the elemnt.
for ( var attName in attributes ) {
// The 'class' element value must match (#1318).
if ( ( attName == 'class' || this._.definition.fullMatch ) && element.getAttribute( attName ) != normalizeProperty( attName, attributes[ attName ] ) )
continue;
removeEmpty = element.hasAttribute( attName );
element.removeAttribute( attName );
}
for ( var styleName in styles ) {
// Full match style insist on having fully equivalence. (#5018)
if ( this._.definition.fullMatch && element.getStyle( styleName ) != normalizeProperty( styleName, styles[ styleName ], true ) )
continue;
removeEmpty = removeEmpty || !!element.getStyle( styleName );
element.removeStyle( styleName );
}
// Remove overrides, but don't remove the element if it's a block element
removeOverrides( element, overrides, blockElements[ element.getName() ] );
if ( removeEmpty ) {
if ( this._.definition.alwaysRemoveElement )
removeNoAttribsElement( element, 1 );
else {
!CKEDITOR.dtd.$block[ element.getName() ] || this._.enterMode == CKEDITOR.ENTER_BR && !element.hasAttributes() ? removeNoAttribsElement( element ) : element.renameNode( this._.enterMode == CKEDITOR.ENTER_P ? 'p' : 'div' );
}
}
}
// Removes a style from inside an element.
function removeFromInsideElement( element ) {
var def = this._.definition,
attribs = def.attributes,
styles = def.styles,
overrides = getOverrides( this ),
innerElements = element.getElementsByTag( this.element );
for ( var i = innerElements.count(); --i >= 0; )
removeFromElement.call( this, innerElements.getItem( i ) );
// Now remove any other element with different name that is
// defined to be overriden.
for ( var overrideElement in overrides ) {
if ( overrideElement != this.element ) {
innerElements = element.getElementsByTag( overrideElement );
for ( i = innerElements.count() - 1; i >= 0; i-- ) {
var innerElement = innerElements.getItem( i );
removeOverrides( innerElement, overrides[ overrideElement ] );
}
}
}
}
// Remove overriding styles/attributes from the specific element.
// Note: Remove the element if no attributes remain.
// @param {Object} element
// @param {Object} overrides
// @param {Boolean} Don't remove the element
function removeOverrides( element, overrides, dontRemove ) {
var attributes = overrides && overrides.attributes;
if ( attributes ) {
for ( var i = 0; i < attributes.length; i++ ) {
var attName = attributes[ i ][ 0 ],
actualAttrValue;
if ( ( actualAttrValue = element.getAttribute( attName ) ) ) {
var attValue = attributes[ i ][ 1 ];
// Remove the attribute if:
// - The override definition value is null ;
// - The override definition valie is a string that
// matches the attribute value exactly.
// - The override definition value is a regex that
// has matches in the attribute value.
if ( attValue === null || ( attValue.test && attValue.test( actualAttrValue ) ) || ( typeof attValue == 'string' && actualAttrValue == attValue ) )
element.removeAttribute( attName );
}
}
}
if ( !dontRemove )
removeNoAttribsElement( element );
}
// If the element has no more attributes, remove it.
function removeNoAttribsElement( element, forceRemove ) {
// If no more attributes remained in the element, remove it,
// leaving its children.
if ( !element.hasAttributes() || forceRemove ) {
if ( CKEDITOR.dtd.$block[ element.getName() ] ) {
var previous = element.getPrevious( nonWhitespaces ),
next = element.getNext( nonWhitespaces );
if ( previous && ( previous.type == CKEDITOR.NODE_TEXT || !previous.isBlockBoundary( { br:1 } ) ) )
element.append( 'br', 1 );
if ( next && ( next.type == CKEDITOR.NODE_TEXT || !next.isBlockBoundary( { br:1 } ) ) )
element.append( 'br' );
element.remove( true );
} else {
// Removing elements may open points where merging is possible,
// so let's cache the first and last nodes for later checking.
var firstChild = element.getFirst();
var lastChild = element.getLast();
element.remove( true );
if ( firstChild ) {
// Check the cached nodes for merging.
firstChild.type == CKEDITOR.NODE_ELEMENT && firstChild.mergeSiblings();
if ( lastChild && !firstChild.equals( lastChild ) && lastChild.type == CKEDITOR.NODE_ELEMENT )
lastChild.mergeSiblings();
}
}
}
}
function getElement( style, targetDocument, element ) {
var el,
def = style._.definition,
elementName = style.element;
// The "*" element name will always be a span for this function.
if ( elementName == '*' )
elementName = 'span';
// Create the element.
el = new CKEDITOR.dom.element( elementName, targetDocument );
// #6226: attributes should be copied before the new ones are applied
if ( element )
element.copyAttributes( el );
el = setupElement( el, style );
// Avoid ID duplication.
if ( targetDocument.getCustomData( 'doc_processing_style' ) && el.hasAttribute( 'id' ) )
el.removeAttribute( 'id' );
else
targetDocument.setCustomData( 'doc_processing_style', 1 );
return el;
}
function setupElement( el, style ) {
var def = style._.definition,
attributes = def.attributes,
styles = CKEDITOR.style.getStyleText( def );
// Assign all defined attributes.
if ( attributes ) {
for ( var att in attributes ) {
el.setAttribute( att, attributes[ att ] );
}
}
// Assign all defined styles.
if ( styles )
el.setAttribute( 'style', styles );
return el;
}
function replaceVariables( list, variablesValues ) {
for ( var item in list ) {
list[ item ] = list[ item ].replace( varRegex, function( match, varName ) {
return variablesValues[ varName ];
});
}
}
// Returns an object that can be used for style matching comparison.
// Attributes names and values are all lowercased, and the styles get
// merged with the style attribute.
function getAttributesForComparison( styleDefinition ) {
// If we have already computed it, just return it.
var attribs = styleDefinition._AC;
if ( attribs )
return attribs;
attribs = {};
var length = 0;
// Loop through all defined attributes.
var styleAttribs = styleDefinition.attributes;
if ( styleAttribs ) {
for ( var styleAtt in styleAttribs ) {
length++;
attribs[ styleAtt ] = styleAttribs[ styleAtt ];
}
}
// Includes the style definitions.
var styleText = CKEDITOR.style.getStyleText( styleDefinition );
if ( styleText ) {
if ( !attribs[ 'style' ] )
length++;
attribs[ 'style' ] = styleText;
}
// Appends the "length" information to the object.
attribs._length = length;
// Return it, saving it to the next request.
return ( styleDefinition._AC = attribs );
}
// Get the the collection used to compare the elements and attributes,
// defined in this style overrides, with other element. All information in
// it is lowercased.
// @param {CKEDITOR.style} style
function getOverrides( style ) {
if ( style._.overrides )
return style._.overrides;
var overrides = ( style._.overrides = {} ),
definition = style._.definition.overrides;
if ( definition ) {
// The override description can be a string, object or array.
// Internally, well handle arrays only, so transform it if needed.
if ( !CKEDITOR.tools.isArray( definition ) )
definition = [ definition ];
// Loop through all override definitions.
for ( var i = 0; i < definition.length; i++ ) {
var override = definition[ i ];
var elementName;
var overrideEl;
var attrs;
// If can be a string with the element name.
if ( typeof override == 'string' )
elementName = override.toLowerCase();
// Or an object.
else {
elementName = override.element ? override.element.toLowerCase() : style.element;
attrs = override.attributes;
}
// We can have more than one override definition for the same
// element name, so we attempt to simply append information to
// it if it already exists.
overrideEl = overrides[ elementName ] || ( overrides[ elementName ] = {} );
if ( attrs ) {
// The returning attributes list is an array, because we
// could have different override definitions for the same
// attribute name.
var overrideAttrs = ( overrideEl.attributes = overrideEl.attributes || new Array() );
for ( var attName in attrs ) {
// Each item in the attributes array is also an array,
// where [0] is the attribute name and [1] is the
// override value.
overrideAttrs.push( [ attName.toLowerCase(), attrs[ attName ] ] );
}
}
}
}
return overrides;
}
// Make the comparison of attribute value easier by standardizing it.
function normalizeProperty( name, value, isStyle ) {
var temp = new CKEDITOR.dom.element( 'span' );
temp[ isStyle ? 'setStyle' : 'setAttribute' ]( name, value );
return temp[ isStyle ? 'getStyle' : 'getAttribute' ]( name );
}
// Compare two bunch of styles, with the speciality that value 'inherit'
// is treated as a wildcard which will match any value.
// @param {Object/String} source
// @param {Object/String} target
function compareCssText( source, target ) {
typeof source == 'string' && ( source = CKEDITOR.tools.parseCssText( source ) );
typeof target == 'string' && ( target = CKEDITOR.tools.parseCssText( target, true ) );
for ( var name in source ) {
if ( !( name in target && ( target[ name ] == source[ name ] || source[ name ] == 'inherit' || target[ name ] == 'inherit' ) ) ) {
return false;
}
}
return true;
}
function applyStyleOnSelection( selection, remove ) {
var doc = selection.document,
ranges = selection.getRanges(),
func = remove ? this.removeFromRange : this.applyToRange,
range;
var iterator = ranges.createIterator();
while ( ( range = iterator.getNextRange() ) )
func.call( this, range );
selection.selectRanges( ranges );
doc.removeCustomData( 'doc_processing_style' );
}
})();
/**
* Generic style command. It applies a specific style when executed.
*
* var boldStyle = new CKEDITOR.style( { element: 'strong' } );
* // Register the "bold" command, which applies the bold style.
* editor.addCommand( 'bold', new CKEDITOR.dialogCommand( boldStyle ) );
*
* @class
* @constructor Creates a styleCommand class instance.
* @extends CKEDITOR.commandDefinition
* @param {CKEDITOR.style} style The style to be applied when command is executed.
* @param {Object} [ext] Additional command definition's properties.
*/
CKEDITOR.styleCommand = function( style, ext ) {
this.style = style;
this.allowedContent = style;
this.requiredContent = style;
CKEDITOR.tools.extend( this, ext, true );
};
/**
* @param {CKEDITOR.editor} editor
* @todo
*/
CKEDITOR.styleCommand.prototype.exec = function( editor ) {
editor.focus();
if ( this.state == CKEDITOR.TRISTATE_OFF )
editor.applyStyle( this.style );
else if ( this.state == CKEDITOR.TRISTATE_ON )
editor.removeStyle( this.style );
};
/**
* Manages styles registration and loading. See also {@link CKEDITOR.config#stylesSet}.
*
* // The set of styles for the <b>Styles</b> combo.
* CKEDITOR.stylesSet.add( 'default', [
* // Block Styles
* { name: 'Blue Title', element: 'h3', styles: { 'color': 'Blue' } },
* { name: 'Red Title', element: 'h3', styles: { 'color': 'Red' } },
*
* // Inline Styles
* { name: 'Marker: Yellow', element: 'span', styles: { 'background-color': 'Yellow' } },
* { name: 'Marker: Green', element: 'span', styles: { 'background-color': 'Lime' } },
*
* // Object Styles
* {
* name: 'Image on Left',
* element: 'img',
* attributes: {
* style: 'padding: 5px; margin-right: 5px',
* border: '2',
* align: 'left'
* }
* }
* ] );
*
* @since 3.2
* @class
* @singleton
* @extends CKEDITOR.resourceManager
*/
CKEDITOR.stylesSet = new CKEDITOR.resourceManager( '', 'stylesSet' );
// Backward compatibility (#5025).
CKEDITOR.addStylesSet = CKEDITOR.tools.bind( CKEDITOR.stylesSet.add, CKEDITOR.stylesSet );
CKEDITOR.loadStylesSet = function( name, url, callback ) {
CKEDITOR.stylesSet.addExternal( name, url, '' );
CKEDITOR.stylesSet.load( name, callback );
};
/**
* Gets the current styleSet for this instance.
*
* editor.getStylesSet( function( stylesDefinitions ) {} );
*
* See also {@link CKEDITOR.editor#stylesSet} event.
*
* @param {Function} callback The function to be called with the styles data.
* @member CKEDITOR.editor
*/
CKEDITOR.editor.prototype.getStylesSet = function( callback ) {
if ( !this._.stylesDefinitions ) {
var editor = this,
// Respect the backwards compatible definition entry
configStyleSet = editor.config.stylesCombo_stylesSet || editor.config.stylesSet;
// The false value means that none styles should be loaded.
if ( configStyleSet === false ) {
callback( null );
return;
}
// #5352 Allow to define the styles directly in the config object
if ( configStyleSet instanceof Array ) {
editor._.stylesDefinitions = configStyleSet;
callback( configStyleSet );
return;
}
// Default value is 'default'.
if ( !configStyleSet )
configStyleSet = 'default';
var partsStylesSet = configStyleSet.split( ':' ),
styleSetName = partsStylesSet[ 0 ],
externalPath = partsStylesSet[ 1 ];
CKEDITOR.stylesSet.addExternal( styleSetName, externalPath ? partsStylesSet.slice( 1 ).join( ':' ) : CKEDITOR.getUrl( 'styles.js' ), '' );
CKEDITOR.stylesSet.load( styleSetName, function( stylesSet ) {
editor._.stylesDefinitions = stylesSet[ styleSetName ];
callback( editor._.stylesDefinitions );
});
} else
callback( this._.stylesDefinitions );
};
/**
* Indicates that fully selected read-only elements will be included when
* applying the style (for inline styles only).
*
* @since 3.5
* @property {Boolean} [includeReadonly=false]
* @member CKEDITOR.style
*/
/**
* Indicates that any matches element of this style will be eventually removed
* when calling {@link CKEDITOR.editor#removeStyle}.
*
* @since 4.0
* @property {Boolean} [alwaysRemoveElement=false]
* @member CKEDITOR.style
*/
/**
* Disables inline styling on read-only elements.
*
* @since 3.5
* @cfg {Boolean} [disableReadonlyStyling=false]
* @member CKEDITOR.config
*/
/**
* The "styles definition set" to use in the editor. They will be used in the
* styles combo and the style selector of the div container.
*
* The styles may be defined in the page containing the editor, or can be
* loaded on demand from an external file. In the second case, if this setting
* contains only a name, the `styles.js` file will be loaded from the
* CKEditor root folder (what ensures backward compatibility with CKEditor 4.0).
*
* Otherwise, this setting has the `name:url` syntax, making it
* possible to set the URL from which loading the styles file.
* Note that the `name` has to be equal to the name used in
* {@link CKEDITOR.stylesSet#add} while registering styles set.
*
* **Note**: Since 4.1 it is possible to set `stylesSet` to `false`
* to prevent loading any styles set.
*
* // Do not load any file. Styles set is empty.
* config.stylesSet = false;
*
* // Load the 'mystyles' styles set from styles.js file.
* config.stylesSet = 'mystyles';
*
* // Load the 'mystyles' styles set from a relative URL.
* config.stylesSet = 'mystyles:/editorstyles/styles.js';
*
* // Load from a full URL.
* config.stylesSet = 'mystyles:http://www.example.com/editorstyles/styles.js';
*
* // Load from a list of definitions.
* config.stylesSet = [
* { name: 'Strong Emphasis', element: 'strong' },
* { name: 'Emphasis', element: 'em' },
* ...
* ];
*
* @since 3.3
* @cfg {String/Array/Boolean} [stylesSet='default']
* @member CKEDITOR.config
*/