'use strict';
|
|
const Mixin = require('../../utils/mixin');
|
const Tokenizer = require('../../tokenizer');
|
const LocationInfoTokenizerMixin = require('./tokenizer-mixin');
|
const LocationInfoOpenElementStackMixin = require('./open-element-stack-mixin');
|
const HTML = require('../../common/html');
|
|
//Aliases
|
const $ = HTML.TAG_NAMES;
|
|
class LocationInfoParserMixin extends Mixin {
|
constructor(parser) {
|
super(parser);
|
|
this.parser = parser;
|
this.treeAdapter = this.parser.treeAdapter;
|
this.posTracker = null;
|
this.lastStartTagToken = null;
|
this.lastFosterParentingLocation = null;
|
this.currentToken = null;
|
}
|
|
_setStartLocation(element) {
|
let loc = null;
|
|
if (this.lastStartTagToken) {
|
loc = Object.assign({}, this.lastStartTagToken.location);
|
loc.startTag = this.lastStartTagToken.location;
|
}
|
|
this.treeAdapter.setNodeSourceCodeLocation(element, loc);
|
}
|
|
_setEndLocation(element, closingToken) {
|
const loc = this.treeAdapter.getNodeSourceCodeLocation(element);
|
|
if (loc) {
|
if (closingToken.location) {
|
const ctLoc = closingToken.location;
|
const tn = this.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.
|
const isClosingEndTag = closingToken.type === Tokenizer.END_TAG_TOKEN && tn === closingToken.tagName;
|
|
if (isClosingEndTag) {
|
loc.endTag = Object.assign({}, ctLoc);
|
loc.endLine = ctLoc.endLine;
|
loc.endCol = ctLoc.endCol;
|
loc.endOffset = ctLoc.endOffset;
|
} else {
|
loc.endLine = ctLoc.startLine;
|
loc.endCol = ctLoc.startCol;
|
loc.endOffset = ctLoc.startOffset;
|
}
|
}
|
}
|
}
|
|
_getOverriddenMethods(mxn, orig) {
|
return {
|
_bootstrap(document, fragmentContext) {
|
orig._bootstrap.call(this, document, fragmentContext);
|
|
mxn.lastStartTagToken = null;
|
mxn.lastFosterParentingLocation = null;
|
mxn.currentToken = null;
|
|
const tokenizerMixin = Mixin.install(this.tokenizer, LocationInfoTokenizerMixin);
|
|
mxn.posTracker = tokenizerMixin.posTracker;
|
|
Mixin.install(this.openElements, LocationInfoOpenElementStackMixin, {
|
onItemPop: function(element) {
|
mxn._setEndLocation(element, mxn.currentToken);
|
}
|
});
|
},
|
|
_runParsingLoop(scriptHandler) {
|
orig._runParsingLoop.call(this, scriptHandler);
|
|
// NOTE: generate location info for elements
|
// that remains on open element stack
|
for (let i = this.openElements.stackTop; i >= 0; i--) {
|
mxn._setEndLocation(this.openElements.items[i], mxn.currentToken);
|
}
|
},
|
|
//Token processing
|
_processTokenInForeignContent(token) {
|
mxn.currentToken = token;
|
orig._processTokenInForeignContent.call(this, token);
|
},
|
|
_processToken(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.
|
const requireExplicitUpdate =
|
token.type === Tokenizer.END_TAG_TOKEN &&
|
(token.tagName === $.HTML || (token.tagName === $.BODY && this.openElements.hasInScope($.BODY)));
|
|
if (requireExplicitUpdate) {
|
for (let i = this.openElements.stackTop; i >= 0; i--) {
|
const element = this.openElements.items[i];
|
|
if (this.treeAdapter.getTagName(element) === token.tagName) {
|
mxn._setEndLocation(element, token);
|
break;
|
}
|
}
|
}
|
},
|
|
//Doctype
|
_setDocumentType(token) {
|
orig._setDocumentType.call(this, token);
|
|
const documentChildren = this.treeAdapter.getChildNodes(this.document);
|
const cnLength = documentChildren.length;
|
|
for (let i = 0; i < cnLength; i++) {
|
const node = documentChildren[i];
|
|
if (this.treeAdapter.isDocumentTypeNode(node)) {
|
this.treeAdapter.setNodeSourceCodeLocation(node, token.location);
|
break;
|
}
|
}
|
},
|
|
//Elements
|
_attachElementToTree(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(token, namespaceURI) {
|
mxn.lastStartTagToken = token;
|
orig._appendElement.call(this, token, namespaceURI);
|
},
|
|
_insertElement(token, namespaceURI) {
|
mxn.lastStartTagToken = token;
|
orig._insertElement.call(this, token, namespaceURI);
|
},
|
|
_insertTemplate(token) {
|
mxn.lastStartTagToken = token;
|
orig._insertTemplate.call(this, token);
|
|
const tmplContent = this.treeAdapter.getTemplateContent(this.openElements.current);
|
|
this.treeAdapter.setNodeSourceCodeLocation(tmplContent, null);
|
},
|
|
_insertFakeRootElement() {
|
orig._insertFakeRootElement.call(this);
|
this.treeAdapter.setNodeSourceCodeLocation(this.openElements.current, null);
|
},
|
|
//Comments
|
_appendCommentNode(token, parent) {
|
orig._appendCommentNode.call(this, token, parent);
|
|
const children = this.treeAdapter.getChildNodes(parent);
|
const commentNode = children[children.length - 1];
|
|
this.treeAdapter.setNodeSourceCodeLocation(commentNode, token.location);
|
},
|
|
//Text
|
_findFosterParentingLocation() {
|
//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(token) {
|
orig._insertCharacters.call(this, token);
|
|
const hasFosterParent = this._shouldFosterParentOnInsertion();
|
|
const parent =
|
(hasFosterParent && mxn.lastFosterParentingLocation.parent) ||
|
this.openElements.currentTmplContent ||
|
this.openElements.current;
|
|
const siblings = this.treeAdapter.getChildNodes(parent);
|
|
const textNodeIdx =
|
hasFosterParent && mxn.lastFosterParentingLocation.beforeElement
|
? siblings.indexOf(mxn.lastFosterParentingLocation.beforeElement) - 1
|
: siblings.length - 1;
|
|
const textNode = siblings[textNodeIdx];
|
|
//NOTE: if we have location assigned by another token, then just update end position
|
const tnLoc = this.treeAdapter.getNodeSourceCodeLocation(textNode);
|
|
if (tnLoc) {
|
tnLoc.endLine = token.location.endLine;
|
tnLoc.endCol = token.location.endCol;
|
tnLoc.endOffset = token.location.endOffset;
|
} else {
|
this.treeAdapter.setNodeSourceCodeLocation(textNode, token.location);
|
}
|
}
|
};
|
}
|
}
|
|
module.exports = LocationInfoParserMixin;
|
