214 lines
7.6 KiB
JavaScript
214 lines
7.6 KiB
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
var Mixin = require('../../utils/mixin'),
|
||
|
|
Tokenizer = require('../../tokenizer'),
|
||
|
|
LocationInfoTokenizerMixin = require('./tokenizer_mixin'),
|
||
|
|
PositionTrackingPreprocessorMixin = require('../position_tracking/preprocessor_mixin'),
|
||
|
|
LocationInfoOpenElementStackMixin = require('./open_element_stack_mixin'),
|
||
|
|
HTML = require('../../common/html'),
|
||
|
|
inherits = require('util').inherits;
|
||
|
|
|
||
|
|
|
||
|
|
//Aliases
|
||
|
|
var $ = HTML.TAG_NAMES;
|
||
|
|
|
||
|
|
var LocationInfoParserMixin = module.exports = function (parser) {
|
||
|
|
Mixin.call(this, parser);
|
||
|
|
|
||
|
|
this.parser = parser;
|
||
|
|
this.posTracker = null;
|
||
|
|
this.lastStartTagToken = null;
|
||
|
|
this.lastFosterParentingLocation = null;
|
||
|
|
this.currentToken = null;
|
||
|
|
};
|
||
|
|
|
||
|
|
inherits(LocationInfoParserMixin, Mixin);
|
||
|
|
|
||
|
|
|
||
|
|
LocationInfoParserMixin.prototype._setStartLocation = function (element) {
|
||
|
|
if (this.lastStartTagToken) {
|
||
|
|
element.__location = Object.create(this.lastStartTagToken.location);
|
||
|
|
element.__location.startTag = this.lastStartTagToken.location;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
element.__location = null;
|
||
|
|
};
|
||
|
|
|
||
|
|
LocationInfoParserMixin.prototype._setEndLocation = function (element, closingToken) {
|
||
|
|
var loc = element.__location;
|
||
|
|
|
||
|
|
if (loc) {
|
||
|
|
if (closingToken.location) {
|
||
|
|
var ctLoc = closingToken.location,
|
||
|
|
tn = this.parser.treeAdapter.getTagName(element);
|
||
|
|
|
||
|
|
// NOTE: For cases like <p> <p> </p> - First 'p' closes without a closing
|
||
|
|
// tag and for cases like <td> <p> </td> - 'p' closes without a closing tag.
|
||
|
|
var isClosingEndTag = closingToken.type === Tokenizer.END_TAG_TOKEN && tn === closingToken.tagName;
|
||
|
|
|
||
|
|
if (isClosingEndTag) {
|
||
|
|
loc.endTag = Object.create(ctLoc);
|
||
|
|
loc.endOffset = ctLoc.endOffset;
|
||
|
|
}
|
||
|
|
|
||
|
|
else
|
||
|
|
loc.endOffset = ctLoc.startOffset;
|
||
|
|
}
|
||
|
|
|
||
|
|
else if (closingToken.type === Tokenizer.EOF_TOKEN)
|
||
|
|
loc.endOffset = this.posTracker.offset;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
LocationInfoParserMixin.prototype._getOverriddenMethods = function (mxn, orig) {
|
||
|
|
return {
|
||
|
|
_bootstrap: function (document, fragmentContext) {
|
||
|
|
orig._bootstrap.call(this, document, fragmentContext);
|
||
|
|
|
||
|
|
mxn.lastStartTagToken = null;
|
||
|
|
mxn.lastFosterParentingLocation = null;
|
||
|
|
mxn.currentToken = null;
|
||
|
|
mxn.posTracker = new PositionTrackingPreprocessorMixin(this.tokenizer.preprocessor);
|
||
|
|
|
||
|
|
new LocationInfoTokenizerMixin(this.tokenizer);
|
||
|
|
|
||
|
|
new LocationInfoOpenElementStackMixin(this.openElements, {
|
||
|
|
onItemPop: function (element) {
|
||
|
|
mxn._setEndLocation(element, mxn.currentToken);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
},
|
||
|
|
|
||
|
|
_runParsingLoop: function (scriptHandler) {
|
||
|
|
orig._runParsingLoop.call(this, scriptHandler);
|
||
|
|
|
||
|
|
// NOTE: generate location info for elements
|
||
|
|
// that remains on open element stack
|
||
|
|
for (var i = this.openElements.stackTop; i >= 0; i--)
|
||
|
|
mxn._setEndLocation(this.openElements.items[i], mxn.currentToken);
|
||
|
|
},
|
||
|
|
|
||
|
|
|
||
|
|
//Token processing
|
||
|
|
_processTokenInForeignContent: function (token) {
|
||
|
|
mxn.currentToken = token;
|
||
|
|
orig._processTokenInForeignContent.call(this, token);
|
||
|
|
},
|
||
|
|
|
||
|
|
_processToken: function (token) {
|
||
|
|
mxn.currentToken = token;
|
||
|
|
orig._processToken.call(this, token);
|
||
|
|
|
||
|
|
//NOTE: <body> and <html> are never popped from the stack, so we need to updated
|
||
|
|
//their end location explicitly.
|
||
|
|
var requireExplicitUpdate = token.type === Tokenizer.END_TAG_TOKEN &&
|
||
|
|
(token.tagName === $.HTML ||
|
||
|
|
token.tagName === $.BODY && this.openElements.hasInScope($.BODY));
|
||
|
|
|
||
|
|
if (requireExplicitUpdate) {
|
||
|
|
for (var i = this.openElements.stackTop; i >= 0; i--) {
|
||
|
|
var element = this.openElements.items[i];
|
||
|
|
|
||
|
|
if (this.treeAdapter.getTagName(element) === token.tagName) {
|
||
|
|
mxn._setEndLocation(element, token);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
|
||
|
|
//Doctype
|
||
|
|
_setDocumentType: function (token) {
|
||
|
|
orig._setDocumentType.call(this, token);
|
||
|
|
|
||
|
|
var documentChildren = this.treeAdapter.getChildNodes(this.document),
|
||
|
|
cnLength = documentChildren.length;
|
||
|
|
|
||
|
|
for (var i = 0; i < cnLength; i++) {
|
||
|
|
var node = documentChildren[i];
|
||
|
|
|
||
|
|
if (this.treeAdapter.isDocumentTypeNode(node)) {
|
||
|
|
node.__location = token.location;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
|
||
|
|
//Elements
|
||
|
|
_attachElementToTree: function (element) {
|
||
|
|
//NOTE: _attachElementToTree is called from _appendElement, _insertElement and _insertTemplate methods.
|
||
|
|
//So we will use token location stored in this methods for the element.
|
||
|
|
mxn._setStartLocation(element);
|
||
|
|
mxn.lastStartTagToken = null;
|
||
|
|
orig._attachElementToTree.call(this, element);
|
||
|
|
},
|
||
|
|
|
||
|
|
_appendElement: function (token, namespaceURI) {
|
||
|
|
mxn.lastStartTagToken = token;
|
||
|
|
orig._appendElement.call(this, token, namespaceURI);
|
||
|
|
},
|
||
|
|
|
||
|
|
_insertElement: function (token, namespaceURI) {
|
||
|
|
mxn.lastStartTagToken = token;
|
||
|
|
orig._insertElement.call(this, token, namespaceURI);
|
||
|
|
},
|
||
|
|
|
||
|
|
_insertTemplate: function (token) {
|
||
|
|
mxn.lastStartTagToken = token;
|
||
|
|
orig._insertTemplate.call(this, token);
|
||
|
|
|
||
|
|
var tmplContent = this.treeAdapter.getTemplateContent(this.openElements.current);
|
||
|
|
|
||
|
|
tmplContent.__location = null;
|
||
|
|
},
|
||
|
|
|
||
|
|
_insertFakeRootElement: function () {
|
||
|
|
orig._insertFakeRootElement.call(this);
|
||
|
|
this.openElements.current.__location = null;
|
||
|
|
},
|
||
|
|
|
||
|
|
//Comments
|
||
|
|
_appendCommentNode: function (token, parent) {
|
||
|
|
orig._appendCommentNode.call(this, token, parent);
|
||
|
|
|
||
|
|
var children = this.treeAdapter.getChildNodes(parent),
|
||
|
|
commentNode = children[children.length - 1];
|
||
|
|
|
||
|
|
commentNode.__location = token.location;
|
||
|
|
},
|
||
|
|
|
||
|
|
//Text
|
||
|
|
_findFosterParentingLocation: function () {
|
||
|
|
//NOTE: store last foster parenting location, so we will be able to find inserted text
|
||
|
|
//in case of foster parenting
|
||
|
|
mxn.lastFosterParentingLocation = orig._findFosterParentingLocation.call(this);
|
||
|
|
|
||
|
|
return mxn.lastFosterParentingLocation;
|
||
|
|
},
|
||
|
|
|
||
|
|
_insertCharacters: function (token) {
|
||
|
|
orig._insertCharacters.call(this, token);
|
||
|
|
|
||
|
|
var hasFosterParent = this._shouldFosterParentOnInsertion(),
|
||
|
|
parent = hasFosterParent && mxn.lastFosterParentingLocation.parent ||
|
||
|
|
this.openElements.currentTmplContent ||
|
||
|
|
this.openElements.current,
|
||
|
|
siblings = this.treeAdapter.getChildNodes(parent),
|
||
|
|
textNodeIdx = hasFosterParent && mxn.lastFosterParentingLocation.beforeElement ?
|
||
|
|
siblings.indexOf(mxn.lastFosterParentingLocation.beforeElement) - 1 :
|
||
|
|
siblings.length - 1,
|
||
|
|
textNode = siblings[textNodeIdx];
|
||
|
|
|
||
|
|
//NOTE: if we have location assigned by another token, then just update end position
|
||
|
|
if (textNode.__location)
|
||
|
|
textNode.__location.endOffset = token.location.endOffset;
|
||
|
|
|
||
|
|
else
|
||
|
|
textNode.__location = token.location;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|