mediawiki-extensions-Visual.../modules/ve/dm/ve.dm.Converter.js
Timo Tijhof 71020f7175 Remainder JSHint fixes on modules/ve/*
[jshint]
ce/ve.ce.Surface.js: line 670, col 9, Too many var statements.
ce/ve.ce.Surface.js: line 695, col 6, Missing semicolon.
ce/ve.ce.Surface.js: line 726, col 22, Expected '===' and instead saw '=='.
ce/ve.ce.Surface.js: line 726, col 41, Expected '===' and instead saw '=='.
ce/ve.ce.Surface.js: line 733, col 13, Too many var statements.
ce/ve.ce.Surface.js: line 734, col 24, Expected '===' and instead saw '=='.
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ce/ve.ce.Surface.js: line 1019, col 17, Too many var statements.
ce/ve.ce.Surface.js: line 1023, col 18, Too many ar statements.
ce/ve.ce.Surface.js: line 1027, col 13, Too many var statements.
dm/annotations/ve.dm.LinkAnnotation.js: line 70, col 52, Insecure '.'.
dm/ve.dm.Converter.js: line 383, col 29, Empty block.
dm/ve.dm.Converter.js: line 423, col 33, Empty block.

Commands:
 * jshint .
 * ack '(if|else|function|switch|for|while)\('
 * Sublime Text 2:
   Find(*): (if|else|function|switch|for|while)\(
   Replace: $1 (
 * ack '  ' -Q # double spaces, except in certain comments

Change-Id: I8e34bf2924bc8688fdf8acef08bbc4f6707e93be
2012-09-05 13:45:09 -07:00

808 lines
28 KiB
JavaScript

/**
* VisualEditor data model Converter class.
*
* @copyright 2011-2012 VisualEditor Team and others; see AUTHORS.txt
* @license The MIT License (MIT); see LICENSE.txt
*/
/**
* Converter between HTML DOM and VisualEditor linear data.
*
* @class
* @constructor
* @param {Object} options Conversion options
*/
ve.dm.Converter = function ( nodeFactory, annotationFactory ) {
// Properties
this.nodeFactory = nodeFactory;
this.annotationFactory = annotationFactory;
this.elements = { 'toDomElement': {}, 'toDataElement': {}, 'dataElementTypes': {} };
this.annotations = { 'toDomElement': {}, 'toDataAnnotation': {} };
// Events
this.nodeFactory.addListenerMethod( this, 'register', 'onNodeRegister' );
this.annotationFactory.addListenerMethod( this, 'register', 'onAnnotationRegister' );
};
/* Static Methods */
/**
* Get linear model data from a string optionally applying annotations
*
* @param {String} text Plain text to convert
* @param {Array} [annotations] Array of annotation objects to apply
* @returns {Array} Linear model data, one element per character
*/
ve.dm.Converter.getDataContentFromText = function ( text, annotations ) {
var characters = text.split( '' ),
annotationMap = {},
i;
if ( !annotations || annotations.length === 0 ) {
return characters;
}
// Build annotation map
for ( i = 0; i < annotations.length; i++ ) {
if ( annotations[i].data && ve.isEmptyObject( annotations[i].data ) ) {
// Cleanup empty data property
delete annotations[i].data;
}
annotationMap[ve.getHash( annotations[i] )] = annotations[i];
}
// Apply annotations to characters
for ( i = 0; i < characters.length; i++ ) {
// Make a shallow copy of the annotationMap object, otherwise adding an annotation to one
// character automatically adds it to all of others as well, annotations should be treated
// as immutable, so it's OK to share references, but annotation maps are not immutable, so
// its not safe to share references - each annotated character needs its own map
characters[i] = [characters[i], ve.extendObject( {}, annotationMap )];
}
return characters;
};
/* Methods */
/**
* Responds to register events from the node factory.
*
* If a node is special; such as document, alienInline, alienBlock and text; its {converters}
* property should be set to null, as to distinguish it from a new node type that someone has simply
* forgotten to implement converters for.
*
* @method
* @param {String} type Node type
* @param {Function} constructor Node constructor
* @throws 'Missing conversion data in node implementation of {type}'
*/
ve.dm.Converter.prototype.onNodeRegister = function ( dataElementType, constructor ) {
if ( constructor.converters === undefined ) {
throw new Error( 'Missing conversion data in node implementation of ' + dataElementType );
} else if ( constructor.converters !== null ) {
var i,
domElementTypes = constructor.converters.domElementTypes,
toDomElement = constructor.converters.toDomElement,
toDataElement = constructor.converters.toDataElement;
// Registration
this.elements.toDomElement[dataElementType] = toDomElement;
for ( i = 0; i < domElementTypes.length; i++ ) {
this.elements.toDataElement[domElementTypes[i]] = toDataElement;
this.elements.dataElementTypes[domElementTypes[i]] = dataElementType;
}
}
};
/**
* Responds to register events from the annotation factory.
*
* @method
* @param {String} type Base annotation type
* @param {Function} constructor Annotation constructor
* @throws 'Missing conversion data in annotation implementation of {type}'
*/
ve.dm.Converter.prototype.onAnnotationRegister = function ( dataElementType, constructor ) {
if ( constructor.converters === undefined ) {
throw new Error( 'Missing conversion data in annotation implementation of ' + dataElementType );
} else if ( constructor.converters !== null ) {
var i,
domElementTypes = constructor.converters.domElementTypes,
toDomElement = constructor.converters.toDomElement,
toDataAnnotation = constructor.converters.toDataAnnotation;
// Registration
this.annotations.toDomElement[dataElementType] = toDomElement;
for ( i = 0; i < domElementTypes.length; i++ ) {
this.annotations.toDataAnnotation[domElementTypes[i]] = toDataAnnotation;
}
}
};
/**
* Get the DOM element for a given linear model element.
*
* This invokes the toDomElement function registered for the element type.
* NOTE: alienBlock and alienInline elements are not supported, if you pass them this function
* will return false. (Opposite of District 9: no aliens allowed.)
*
* @method
* @param {Object} dataElement Linear model element
* @returns {HTMLElement|false} DOM element, or false if this element cannot be converted
*/
ve.dm.Converter.prototype.getDomElementFromDataElement = function ( dataElement ) {
var key, domElement, dataElementAttributes,
dataElementType = dataElement.type;
if (
// Aliens
dataElementType === 'alienInline' || dataElementType === 'alienBlock' ||
// Unsupported elements
!( dataElementType in this.elements.toDomElement)
) {
return false;
}
domElement = this.elements.toDomElement[dataElementType]( dataElementType, dataElement );
dataElementAttributes = dataElement.attributes;
if ( dataElementAttributes ) {
for ( key in dataElementAttributes ) {
// Only include 'html/*' attributes and strip the 'html/' from the beginning of the name
if ( key.indexOf( 'html/' ) === 0 ) {
domElement.setAttribute( key.substr( 5 ), dataElementAttributes[key] );
}
}
}
return domElement;
};
/**
* Get the linear model data element for a given DOM element.
*
* This invokes the toDataElement function registered for the element type
*
* @method
* @param {HTMLElement} domElement DOM element
* @returns {Object|false} Linear model element, or false if this node cannot be converted
*/
ve.dm.Converter.prototype.getDataElementFromDomElement = function ( domElement ) {
var dataElement, domElementAttributes, dataElementAttributes, domElementAttribute, i,
domElementType = domElement.nodeName.toLowerCase();
if (
// Unsupported elements
!( domElementType in this.elements.toDataElement )
// TODO check for generated elements
) {
return false;
}
dataElement = this.elements.toDataElement[domElementType]( domElementType, domElement );
domElementAttributes = domElement.attributes;
if ( domElementAttributes.length ) {
dataElementAttributes = dataElement.attributes = dataElement.attributes || {};
// Inlcude all attributes and prepend 'html/' to each attribute name
for ( i = 0; i < domElementAttributes.length; i++ ) {
domElementAttribute = domElementAttributes[i];
dataElementAttributes['html/' + domElementAttribute.name] = domElementAttribute.value;
}
}
return dataElement;
};
/**
* Check if an HTML DOM node represents an annotation, and if so, build an annotation object for it.
*
* @example Annotation Object
* { 'type': 'type', data: { 'key': 'value', ... } }
*
* @param {HTMLElement} domElement HTML DOM node
* @returns {Object|false} Annotation object, or false if this node is not an annotation
*/
ve.dm.Converter.prototype.getDataAnnotationFromDomElement = function ( domElement ) {
var domElementType = domElement.nodeName.toLowerCase(),
toDataAnnotation = this.annotations.toDataAnnotation[domElementType];
if ( typeof toDataAnnotation === 'function' ) {
return toDataAnnotation( domElementType, domElement );
}
return false;
};
/**
* Build an HTML DOM node for a linear model annotation.
*
* @method
* @param {Object} dataAnnotation Annotation object
* @returns {HTMLElement|false} HTML DOM node, or false if this annotation is not known
*/
ve.dm.Converter.prototype.getDomElementFromDataAnnotation = function ( dataAnnotation ) {
var split = dataAnnotation.type.split( '/' ),
baseType = split[0],
subType = split.slice( 1 ).join( '/' ),
toDomElement = this.annotations.toDomElement[baseType];
if ( typeof toDomElement === 'function' ) {
return toDomElement( subType, dataAnnotation );
}
return false;
};
/**
* Convert an HTML DOM tree to a linear model.
*
* Do not use the annotations, dataElement and path parameters, they're used for internal
* recursion only.
*
* @method
* @param {HTMLElement} domElement Wrapper div containing the HTML to convert
* @param {Array} [annotations] Array of annotations (objects) to apply to the generated data
* @param {Object} [dataElement] Data element to wrap the returned data in
* @param {Array} [path] Array of linear model element types
* @param {Boolean} [alreadyWrapped] Whether the caller has already started wrapping bare content in a paragraph
* @returns {Array} Linear model data
*/
ve.dm.Converter.prototype.getDataFromDom = function ( domElement, annotations, dataElement, path, alreadyWrapped ) {
function createAlien( domElement, isInline ) {
var type = isInline ? 'alienInline' : 'alienBlock';
return [
{
'type': type,
'attributes': {
'html': $( '<div>' ).append( $( domElement ).clone() ).html()
}
},
{ 'type': '/' + type }
];
}
function addWhitespace( element, index, whitespace ) {
if ( !element.internal ) {
element.internal = {};
}
// whitespace = [ outerPre, innerPre, innerPost, outerPost ]
// <tag> text </tag> <nextTag>
// ^^^^^^^^^^ ^^^^^^^^^ ^^^^^^^^^^^ ^^^^^^^^^^
// outerPre innerPre innerPost outerPost
if ( !element.internal.whitespace ) {
element.internal.whitespace = [];
}
if ( !element.internal.whitespace[index] ) {
element.internal.whitespace[index] = '';
}
element.internal.whitespace[index] = whitespace;
}
function processNextWhitespace( element ) {
// This function uses and changes nextWhitespace in the outer function's scope,
// which means it's not really a function but more of a shortcut.
if ( nextWhitespace !== '' ) {
addWhitespace( element, 0, nextWhitespace );
nextWhitespace = '';
}
}
// Fallback to defaults
annotations = annotations || [];
path = path || ['document'];
var i, childDomElement, annotation, childDataElement, text, childTypes, matches,
wrappingParagraph, prevElement, alien,
data = [],
branchType = path[path.length - 1],
branchIsContent = ve.dm.nodeFactory.canNodeContainContent( branchType ),
nextWhitespace = '',
wrappedWhitespace = '',
wrapping = alreadyWrapped,
wrappingIsOurs = false;
// Open element
if ( dataElement ) {
data.push( dataElement );
}
// Add contents
for ( i = 0; i < domElement.childNodes.length; i++ ) {
childDomElement = domElement.childNodes[i];
switch ( childDomElement.nodeType ) {
case Node.ELEMENT_NODE:
// Detect and handle annotated content
annotation = this.getDataAnnotationFromDomElement( childDomElement );
if ( annotation ) {
// Start auto-wrapping of bare content
if ( !wrapping && !branchIsContent ) {
// Mark this paragraph as having been generated by
// us, so we can strip it on the way out
wrappingParagraph = {
'type': 'paragraph',
'internal': { 'generated': 'wrapper' }
};
data.push( wrappingParagraph );
wrapping = true;
wrappingIsOurs = true;
processNextWhitespace( wrappingParagraph );
prevElement = wrappingParagraph;
}
// Append child element data
data = data.concat(
this.getDataFromDom(
childDomElement, annotations.concat( annotation ), undefined, path, wrapping
)
);
break;
}
// End auto-wrapping of bare content from a previously processed node
if ( wrapping ) {
if ( wrappedWhitespace !== '' ) {
// Remove wrappedWhitespace from data
data.splice( -wrappedWhitespace.length, wrappedWhitespace.length );
addWhitespace( wrappingParagraph, 3, wrappedWhitespace );
nextWhitespace = wrappedWhitespace;
}
data.push( { 'type': '/paragraph' } );
wrappingParagraph = undefined;
wrapping = false;
wrappingIsOurs = false;
}
// Append child element data
childDataElement = this.getDataElementFromDomElement( childDomElement );
if ( childDataElement ) {
data = data.concat(
this.getDataFromDom(
childDomElement,
[],
childDataElement,
path.concat( childDataElement.type ),
wrapping
)
);
processNextWhitespace( childDataElement );
prevElement = childDataElement;
break;
}
// We don't know what this is, fall back to alien
alien = createAlien( childDomElement, branchIsContent );
data = data.concat( alien );
processNextWhitespace( alien );
prevElement = alien;
break;
case Node.TEXT_NODE:
text = childDomElement.data;
if ( text === '' ) {
// Empty text node?!?
break;
}
if ( !branchIsContent ) {
// Strip and store outer whitespace
if ( text.match( /^\s+$/ ) ) {
// This text node is whitespace only
if ( wrapping ) {
// We're already wrapping, so output this whitespace
// and store it in wrappedWhitespace (see
// comment about wrappedWhitespace below)
wrappedWhitespace = text;
data = data.concat(
ve.dm.Converter.getDataContentFromText( wrappedWhitespace, annotations )
);
} else {
// We're not in wrapping mode, store this whitespace
if ( !prevElement ) {
if ( dataElement ) {
// First child, store as inner
// whitespace in the parent
addWhitespace( dataElement, 1, text );
}
// Else, WTF?!? This is not supposed to
// happen, but it's not worth
// throwing an exception over.
} else {
addWhitespace( prevElement, 3, text );
}
nextWhitespace = text;
wrappedWhitespace = '';
}
// We're done, no actual text left to process
break;
} else {
// This text node contains actual text
// Separate the real text from the whitespace
// HACK: . doesn't match newlines in JS, so use
// [\s\S] to match any character
matches = text.match( /^(\s*)([\s\S]*?)(\s*)$/ );
if ( !wrapping ) {
// Wrap the text in a paragraph and output it
// Mark this paragraph as having been generated by
// us, so we can strip it on the way out
wrappingParagraph = {
'type': 'paragraph',
'internal': { 'generated': 'wrapper' }
};
processNextWhitespace( wrappingParagraph );
data.push( wrappingParagraph );
wrapping = true;
wrappingIsOurs = true;
// Only store leading whitespace if we just
// started wrapping
if ( matches[1] !== '' ) {
if ( !prevElement ) {
if ( dataElement ) {
// First child, store as inner
// whitespace in the parent
addWhitespace( dataElement, 1, matches[1] );
}
// Else, WTF?!? This is not supposed to
// happen, but it's not worth
// throwing an exception over.
} else {
addWhitespace( prevElement, 3, matches[1] );
}
addWhitespace( wrappingParagraph, 0, matches[1] );
}
} else {
// We were already wrapping in a paragraph,
// so the leading whitespace must be output
data = data.concat(
ve.dm.Converter.getDataContentFromText( matches[1], annotations )
);
}
// Output the text sans whitespace
data = data.concat(
ve.dm.Converter.getDataContentFromText( matches[2], annotations )
);
// Don't store this in wrappingParagraph.internal.whitespace[3]
// and nextWhitespace just yet. Instead, store it
// in wrappedWhitespace. There might be more text
// nodes after this one, so we output wrappedWhitespace
// for now and undo that if it turns out this was
// the last text node. We can't output it later
// because we have to apply the correct annotations.
wrappedWhitespace = matches[3];
data = data.concat(
ve.dm.Converter.getDataContentFromText( wrappedWhitespace, annotations )
);
prevElement = wrappingParagraph;
break;
}
}
// Strip leading and trailing inner whitespace
// (but only in non-annotation nodes)
// and store it so it can be restored later.
if ( annotations.length === 0 && i === 0 && dataElement ) {
// Strip leading whitespace from the first child
matches = text.match( /^\s+/ );
if ( matches && matches[0] !== '' ) {
addWhitespace( dataElement, 1, matches[0] );
text = text.substring( matches[0].length );
}
}
if (
annotations.length === 0 &&
i === domElement.childNodes.length - 1 &&
dataElement
) {
// Strip trailing whitespace from the last child
matches = text.match( /\s+$/ );
if ( matches && matches[0] !== '' ) {
addWhitespace( dataElement, 2, matches[0] );
text = text.substring( 0,
text.length - matches[0].length );
}
}
// Annotate the text and output it
data = data.concat(
ve.dm.Converter.getDataContentFromText( text, annotations )
);
break;
case Node.COMMENT_NODE:
// TODO: Preserve comments by inserting them into the linear model too
// Could use placeholders for this too, although they'd need to be
// inline in certain cases
break;
}
}
// End auto-wrapping of bare content
if ( wrapping && wrappingIsOurs ) {
if ( wrappedWhitespace !== '' ) {
// Remove wrappedWhitespace from data
data.splice( -wrappedWhitespace.length, wrappedWhitespace.length );
addWhitespace( wrappingParagraph, 3, wrappedWhitespace );
nextWhitespace = wrappedWhitespace;
}
data.push( { 'type': '/paragraph' } );
// Don't set wrapping = false here because it's checked below
wrappingParagraph = undefined;
}
// If we're closing a node that doesn't have any children, but could contain a paragraph,
// add a paragraph. This prevents things like empty list items
childTypes = ve.dm.nodeFactory.getChildNodeTypes( branchType );
if ( branchType !== 'paragraph' && dataElement && data[data.length - 1] === dataElement &&
!wrapping && !ve.dm.nodeFactory.canNodeContainContent( branchType ) &&
!ve.dm.nodeFactory.isNodeContent( branchType ) &&
( childTypes === null || ve.indexOf( 'paragraph', childTypes ) !== -1 )
) {
data.push( { 'type': 'paragraph', 'internal': { 'generated': 'wrapper' } } );
data.push( { 'type': '/paragraph' } );
}
// Close element
if ( dataElement ) {
data.push( { 'type': '/' + dataElement.type } );
// Add the whitespace after the last child to the parent as innerPost
if ( nextWhitespace !== '' ) {
addWhitespace( dataElement, 2, nextWhitespace );
nextWhitespace = '';
}
}
// Don't return an empty document
if ( branchType === 'document' && data.length === 0 ) {
return [
{ 'type': 'paragraph', 'internal': { 'generated': 'wrapper' } },
{ 'type': '/paragraph' }
];
}
return data;
};
/**
* Convert linear model data to an HTML DOM
*
* @method
* @param {Array} data Linear model data
* @returns {HTMLElement} Wrapper div containing the resulting HTML
*/
ve.dm.Converter.prototype.getDomFromData = function ( data ) {
var text, i, j, annotations, hash, annotationElement, done, dataElement, wrapper,
childDomElement, pre, post, ours, theirs, parentDomElement,
container = document.createElement( 'div' ),
domElement = container,
annotationStack = {}; // { hash: DOMnode }
for ( i = 0; i < data.length; i++ ) {
if ( typeof data[i] === 'string' ) {
// Text
text = '';
// Continue forward as far as the plain text goes
while ( typeof data[i] === 'string' ) {
text += data[i];
i++;
}
// i points to the first non-text thing, go back one so we don't skip this later
i--;
// Add text
domElement.appendChild( document.createTextNode( text ) );
} else if (
ve.isArray( data[i] ) ||
(
data[i].annotations !== undefined &&
ve.dm.nodeFactory.isNodeContent( data[i].type )
)
) {
// Annotated text
text = '';
while (
ve.isArray( data[i] ) ||
(
data[i].annotations !== undefined &&
ve.dm.nodeFactory.isNodeContent( data[i].type )
)
) {
annotations = data[i].annotations || data[i][1];
// Check for closed annotations
for ( hash in annotationStack ) {
if ( !( hash in annotations ) ) {
// It's closed
// Traverse up until we hit the node we need to close, and then
// traverse up one more time to close that node
done = false;
while ( !done ) {
done = domElement === annotationStack[hash];
// Remove the annotation from the stack
delete annotationStack[domElement.veAnnotationHash];
// Remove the temporary veAnnotationHash property
delete domElement.veAnnotationHash;
// Add text if needed
if ( text.length > 0 ) {
domElement.appendChild( document.createTextNode( text ) );
text = '';
}
// Traverse up
domElement = domElement.parentNode;
}
}
}
// Check for opened annotations
for ( hash in annotations ) {
if ( !( hash in annotationStack ) ) {
// It's opened
annotationElement = this.getDomElementFromDataAnnotation( annotations[hash] );
// Temporary property, will remove this when closing the annotation
annotationElement.veAnnotationHash = hash;
// Add to the annotation stack
annotationStack[hash] = annotationElement;
// Add text if needed
if ( text.length > 0 ) {
domElement.appendChild( document.createTextNode( text ) );
text = '';
}
// Attach new node and descend into it
domElement.appendChild( annotationElement );
domElement = annotationElement;
}
}
if ( data[i].annotations === undefined ) {
text += data[i][0];
} else {
// Add text if needed
if ( text.length > 0 ) {
domElement.appendChild( document.createTextNode( text ) );
text = '';
}
// Insert the element
domElement.appendChild( this.getDomElementFromDataElement( data[i] ) );
// Increment i once more so we skip over the closing as well
i++;
}
i++;
}
// We're now at the first non-annotated thing, go back one so we don't skip this later
i--;
// Add any gathered text
if ( text.length > 0 ) {
domElement.appendChild( document.createTextNode( text ) );
text = '';
}
// Close any remaining annotation nodes
while ( domElement.veAnnotationHash !== undefined ) {
delete annotationStack[domElement.veAnnotationHash];
delete domElement.veAnnotationHash;
domElement = domElement.parentNode;
}
} else if ( data[i].type !== undefined ) {
dataElement = data[i];
// Element
if ( dataElement.type === 'alienBlock' || dataElement.type === 'alienInline' ) {
// Create nodes from source
wrapper = document.createElement( 'div' );
wrapper.innerHTML = dataElement.attributes.html;
// Add element - adds all child elements, but there really should only be 1
while ( wrapper.firstChild ) {
domElement.appendChild( wrapper.firstChild );
}
// Make sure the alien closing is skipped
i++;
} else if ( dataElement.type.charAt( 0 ) === '/' ) {
parentDomElement = domElement.parentNode;
// Process whitespace
// whitespace = [ outerPre, innerPre, innerPost, outerPost ]
if ( domElement.veInternal && domElement.veInternal.whitespace ) {
// Process inner whitespace. innerPre is for sure legitimate
// whitespace that should be inserted; if it was a duplicate
// of our child's outerPre, we would have cleared it.
pre = domElement.veInternal.whitespace[1];
if ( pre ) {
if (
domElement.firstChild &&
domElement.firstChild.nodeType === 3
) {
// First child is a TextNode, prepend to it
domElement.firstChild.insertData( 0, pre );
} else {
// Prepend a TextNode
domElement.insertBefore(
document.createTextNode( pre ),
domElement.firstChild
);
}
}
ours = domElement.veInternal.whitespace[2];
if ( domElement.lastOuterPost === undefined ) {
// This node didn't have any structural children
// (i.e. it's a content-containing node), so there's
// nothing to check innerPost against
theirs = ours;
} else {
theirs = domElement.lastOuterPost;
}
if ( ours && ours === theirs ) {
if (
domElement.lastChild &&
domElement.lastChild.nodeType === 3
) {
// Last child is a TextNode, append to it
domElement.lastChild.appendData( ours );
} else {
// Append a TextNode
domElement.appendChild(
document.createTextNode( ours )
);
}
}
// Tell the parent about our outerPost
parentDomElement.lastOuterPost = domElement.veInternal.whitespace[3] || '';
} else {
// Use empty string, because undefined means there were no
// structural children
parentDomElement.lastOuterPost = '';
}
// If closing a generated wrapper node, unwrap it
// It would be nicer if we could avoid generating in the first
// place, but then remembering where we have to skip ascending
// to the parent would be tricky.
if ( domElement.veInternal && domElement.veInternal.generated === 'wrapper' ) {
while ( domElement.firstChild ) {
parentDomElement.insertBefore(
domElement.firstChild,
domElement
);
}
parentDomElement.removeChild( domElement );
}
delete domElement.veInternal;
delete domElement.lastOuterPost;
// Ascend to parent node
domElement = parentDomElement;
} else {
// Create node from data
childDomElement = this.getDomElementFromDataElement( dataElement );
// Add reference to internal data
if ( dataElement.internal ) {
childDomElement.veInternal = dataElement.internal;
}
// Add element
domElement.appendChild( childDomElement );
// Descend into child node
parentDomElement = domElement;
domElement = childDomElement;
// Process outer whitespace
// Every piece of outer whitespace is duplicated somewhere:
// each node's outerPost is duplicated as the next node's
// outerPre, the first node's outerPre is the parent's
// innerPre, and the last node's outerPost is the parent's
// innerPost. For each piece of whitespace, we verify that
// the duplicate matches. If it doesn't, we take that to
// mean the user has messed with it and don't output any
// whitespace.
if ( domElement.veInternal && domElement.veInternal.whitespace ) {
// Process this node's outerPre
ours = domElement.veInternal.whitespace[0];
theirs = undefined;
if ( domElement.previousSibling ) {
// Get previous sibling's outerPost
theirs = parentDomElement.lastOuterPost;
} else if ( parentDomElement === container ) {
// outerPre of the very first node in the document, this one
// has no duplicate
theirs = ours;
} else {
// First child, get parent's innerPre
if (
parentDomElement.veInternal &&
parentDomElement.veInternal.whitespace
) {
theirs = parentDomElement.veInternal.whitespace[1];
// Clear after use so it's not used twice
parentDomElement.veInternal.whitespace[1] = undefined;
}
// else theirs=undefined
}
if ( ours && ours === theirs ) {
// Matches the duplicate, insert a TextNode
parentDomElement.insertBefore(
document.createTextNode( ours ),
domElement
);
}
}
}
}
}
// Process the outerPost whitespace of the very last node
if ( container.lastOuterPost !== undefined ) {
if ( container.lastChild && container.lastChild.nodeType === 3 ) {
// Last child is a TextNode, append to it
container.lastChild.appendData( container.lastOuterPost );
} else {
// Append a TextNode
container.appendChild( document.createTextNode( container.lastOuterPost ) );
}
delete container.lastOuterPost;
}
return container;
};
/* Initialization */
ve.dm.converter = new ve.dm.Converter( ve.dm.nodeFactory, ve.dm.annotationFactory );