111 lines
4.2 KiB
JavaScript
111 lines
4.2 KiB
JavaScript
|
"use strict";
|
||
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
||
|
|
exports.findAll = findAll;
|
||
|
|
exports.findOne = findOne;
|
||
|
|
exports.getNextSiblings = getNextSiblings;
|
||
|
|
exports.getElementParent = getElementParent;
|
||
|
|
/**
|
||
|
|
* Find all elements matching the query. If not in XML mode, the query will ignore
|
||
|
|
* the contents of `<template>` elements.
|
||
|
|
*
|
||
|
|
* @param query - Function that returns true if the element matches the query.
|
||
|
|
* @param elems - Nodes to query. If a node is an element, its children will be queried.
|
||
|
|
* @param options - Options for querying the document.
|
||
|
|
* @returns All matching elements.
|
||
|
|
*/
|
||
|
|
function findAll(query, elems, options) {
|
||
|
|
var adapter = options.adapter, _a = options.xmlMode, xmlMode = _a === void 0 ? false : _a;
|
||
|
|
var result = [];
|
||
|
|
/** Stack of the arrays we are looking at. */
|
||
|
|
var nodeStack = [elems];
|
||
|
|
/** Stack of the indices within the arrays. */
|
||
|
|
var indexStack = [0];
|
||
|
|
for (;;) {
|
||
|
|
// First, check if the current array has any more elements to look at.
|
||
|
|
if (indexStack[0] >= nodeStack[0].length) {
|
||
|
|
// If we have no more arrays to look at, we are done.
|
||
|
|
if (nodeStack.length === 1) {
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
nodeStack.shift();
|
||
|
|
indexStack.shift();
|
||
|
|
// Loop back to the start to continue with the next array.
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
var elem = nodeStack[0][indexStack[0]++];
|
||
|
|
if (!adapter.isTag(elem))
|
||
|
|
continue;
|
||
|
|
if (query(elem))
|
||
|
|
result.push(elem);
|
||
|
|
if (xmlMode || adapter.getName(elem) !== "template") {
|
||
|
|
/*
|
||
|
|
* Add the children to the stack. We are depth-first, so this is
|
||
|
|
* the next array we look at.
|
||
|
|
*/
|
||
|
|
var children = adapter.getChildren(elem);
|
||
|
|
if (children.length > 0) {
|
||
|
|
nodeStack.unshift(children);
|
||
|
|
indexStack.unshift(0);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Find the first element matching the query. If not in XML mode, the query will ignore
|
||
|
|
* the contents of `<template>` elements.
|
||
|
|
*
|
||
|
|
* @param query - Function that returns true if the element matches the query.
|
||
|
|
* @param elems - Nodes to query. If a node is an element, its children will be queried.
|
||
|
|
* @param options - Options for querying the document.
|
||
|
|
* @returns The first matching element, or null if there was no match.
|
||
|
|
*/
|
||
|
|
function findOne(query, elems, options) {
|
||
|
|
var adapter = options.adapter, _a = options.xmlMode, xmlMode = _a === void 0 ? false : _a;
|
||
|
|
/** Stack of the arrays we are looking at. */
|
||
|
|
var nodeStack = [elems];
|
||
|
|
/** Stack of the indices within the arrays. */
|
||
|
|
var indexStack = [0];
|
||
|
|
for (;;) {
|
||
|
|
// First, check if the current array has any more elements to look at.
|
||
|
|
if (indexStack[0] >= nodeStack[0].length) {
|
||
|
|
// If we have no more arrays to look at, we are done.
|
||
|
|
if (nodeStack.length === 1) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
nodeStack.shift();
|
||
|
|
indexStack.shift();
|
||
|
|
// Loop back to the start to continue with the next array.
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
var elem = nodeStack[0][indexStack[0]++];
|
||
|
|
if (!adapter.isTag(elem))
|
||
|
|
continue;
|
||
|
|
if (query(elem))
|
||
|
|
return elem;
|
||
|
|
if (xmlMode || adapter.getName(elem) !== "template") {
|
||
|
|
/*
|
||
|
|
* Add the children to the stack. We are depth-first, so this is
|
||
|
|
* the next array we look at.
|
||
|
|
*/
|
||
|
|
var children = adapter.getChildren(elem);
|
||
|
|
if (children.length > 0) {
|
||
|
|
nodeStack.unshift(children);
|
||
|
|
indexStack.unshift(0);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
function getNextSiblings(elem, adapter) {
|
||
|
|
var siblings = adapter.getSiblings(elem);
|
||
|
|
if (siblings.length <= 1)
|
||
|
|
return [];
|
||
|
|
var elemIndex = siblings.indexOf(elem);
|
||
|
|
if (elemIndex < 0 || elemIndex === siblings.length - 1)
|
||
|
|
return [];
|
||
|
|
return siblings.slice(elemIndex + 1).filter(adapter.isTag);
|
||
|
|
}
|
||
|
|
function getElementParent(node, adapter) {
|
||
|
|
var parent = adapter.getParent(node);
|
||
|
|
return parent != null && adapter.isTag(parent) ? parent : null;
|
||
|
|
}
|
||
|
|
//# sourceMappingURL=querying.js.map
|