You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
117 lines
3.2 KiB
117 lines
3.2 KiB
var attributes = require("./attributes.js");
|
|
var Pseudos = require("./pseudos");
|
|
|
|
/*
|
|
all available rules
|
|
*/
|
|
module.exports = {
|
|
__proto__: null,
|
|
|
|
attribute: attributes.compile,
|
|
pseudo: Pseudos.compile,
|
|
|
|
//tags
|
|
tag: function(next, data, options) {
|
|
var name = data.name;
|
|
var adapter = options.adapter;
|
|
|
|
return function tag(elem) {
|
|
return adapter.getName(elem) === name && next(elem);
|
|
};
|
|
},
|
|
|
|
//traversal
|
|
descendant: function(next, data, options) {
|
|
// eslint-disable-next-line no-undef
|
|
var isFalseCache = typeof WeakSet !== "undefined" ? new WeakSet() : null;
|
|
var adapter = options.adapter;
|
|
|
|
return function descendant(elem) {
|
|
var found = false;
|
|
|
|
while (!found && (elem = adapter.getParent(elem))) {
|
|
if (!isFalseCache || !isFalseCache.has(elem)) {
|
|
found = next(elem);
|
|
if (!found && isFalseCache) {
|
|
isFalseCache.add(elem);
|
|
}
|
|
}
|
|
}
|
|
|
|
return found;
|
|
};
|
|
},
|
|
_flexibleDescendant: function(next, data, options) {
|
|
var adapter = options.adapter;
|
|
|
|
// Include element itself, only used while querying an array
|
|
return function descendant(elem) {
|
|
var found = next(elem);
|
|
|
|
while (!found && (elem = adapter.getParent(elem))) {
|
|
found = next(elem);
|
|
}
|
|
|
|
return found;
|
|
};
|
|
},
|
|
parent: function(next, data, options) {
|
|
if (options && options.strict) {
|
|
throw new Error("Parent selector isn't part of CSS3");
|
|
}
|
|
|
|
var adapter = options.adapter;
|
|
|
|
return function parent(elem) {
|
|
return adapter.getChildren(elem).some(test);
|
|
};
|
|
|
|
function test(elem) {
|
|
return adapter.isTag(elem) && next(elem);
|
|
}
|
|
},
|
|
child: function(next, data, options) {
|
|
var adapter = options.adapter;
|
|
|
|
return function child(elem) {
|
|
var parent = adapter.getParent(elem);
|
|
return !!parent && next(parent);
|
|
};
|
|
},
|
|
sibling: function(next, data, options) {
|
|
var adapter = options.adapter;
|
|
|
|
return function sibling(elem) {
|
|
var siblings = adapter.getSiblings(elem);
|
|
|
|
for (var i = 0; i < siblings.length; i++) {
|
|
if (adapter.isTag(siblings[i])) {
|
|
if (siblings[i] === elem) break;
|
|
if (next(siblings[i])) return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
};
|
|
},
|
|
adjacent: function(next, data, options) {
|
|
var adapter = options.adapter;
|
|
|
|
return function adjacent(elem) {
|
|
var siblings = adapter.getSiblings(elem),
|
|
lastElement;
|
|
|
|
for (var i = 0; i < siblings.length; i++) {
|
|
if (adapter.isTag(siblings[i])) {
|
|
if (siblings[i] === elem) break;
|
|
lastElement = siblings[i];
|
|
}
|
|
}
|
|
|
|
return !!lastElement && next(lastElement);
|
|
};
|
|
},
|
|
universal: function(next) {
|
|
return next;
|
|
}
|
|
};
|