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-rwxr-xr-xjavascript/MochiKit/Selector.js431
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-/***
-
-MochiKit.Selector 1.4
-
-See <http://mochikit.com/> for documentation, downloads, license, etc.
-
-(c) 2005 Bob Ippolito and others. All rights Reserved.
-
-***/
-
-if (typeof(dojo) != 'undefined') {
- dojo.provide('MochiKit.Selector');
- dojo.require('MochiKit.Base');
- dojo.require('MochiKit.DOM');
- dojo.require('MochiKit.Iter');
-}
-
-if (typeof(JSAN) != 'undefined') {
- JSAN.use("MochiKit.Base", []);
- JSAN.use("MochiKit.DOM", []);
- JSAN.use("MochiKit.Iter", []);
-}
-
-try {
- if (typeof(MochiKit.Base) === 'undefined' ||
- typeof(MochiKit.DOM) === 'undefined' ||
- typeof(MochiKit.Iter) === 'undefined') {
- throw "";
- }
-} catch (e) {
- throw "MochiKit.Selector depends on MochiKit.Base, MochiKit.DOM and MochiKit.Iter!";
-}
-
-if (typeof(MochiKit.Selector) == 'undefined') {
- MochiKit.Selector = {};
-}
-
-MochiKit.Selector.NAME = "MochiKit.Selector";
-
-MochiKit.Selector.VERSION = "1.4";
-
-MochiKit.Selector.__repr__ = function () {
- return "[" + this.NAME + " " + this.VERSION + "]";
-};
-
-MochiKit.Selector.toString = function () {
- return this.__repr__();
-};
-
-MochiKit.Selector.EXPORT = [
- "Selector",
- "findChildElements",
- "findDocElements",
- "$$"
-];
-
-MochiKit.Selector.EXPORT_OK = [
-];
-
-MochiKit.Selector.Selector = function (expression) {
- this.params = {classNames: [], pseudoClassNames: []};
- this.expression = expression.toString().replace(/(^\s+|\s+$)/g, '');
- this.parseExpression();
- this.compileMatcher();
-};
-
-MochiKit.Selector.Selector.prototype = {
- /***
-
- Selector class: convenient object to make CSS selections.
-
- ***/
- __class__: MochiKit.Selector.Selector,
-
- /** @id MochiKit.Selector.Selector.prototype.parseExpression */
- parseExpression: function () {
- function abort(message) {
- throw 'Parse error in selector: ' + message;
- }
-
- if (this.expression == '') {
- abort('empty expression');
- }
-
- var repr = MochiKit.Base.repr;
- var params = this.params;
- var expr = this.expression;
- var match, modifier, clause, rest;
- while (match = expr.match(/^(.*)\[([a-z0-9_:-]+?)(?:([~\|!^$*]?=)(?:"([^"]*)"|([^\]\s]*)))?\]$/i)) {
- params.attributes = params.attributes || [];
- params.attributes.push({name: match[2], operator: match[3], value: match[4] || match[5] || ''});
- expr = match[1];
- }
-
- if (expr == '*') {
- return this.params.wildcard = true;
- }
-
- while (match = expr.match(/^([^a-z0-9_-])?([a-z0-9_-]+(?:\([^)]*\))?)(.*)/i)) {
- modifier = match[1];
- clause = match[2];
- rest = match[3];
- switch (modifier) {
- case '#':
- params.id = clause;
- break;
- case '.':
- params.classNames.push(clause);
- break;
- case ':':
- params.pseudoClassNames.push(clause);
- break;
- case '':
- case undefined:
- params.tagName = clause.toUpperCase();
- break;
- default:
- abort(repr(expr));
- }
- expr = rest;
- }
-
- if (expr.length > 0) {
- abort(repr(expr));
- }
- },
-
- /** @id MochiKit.Selector.Selector.prototype.buildMatchExpression */
- buildMatchExpression: function () {
- var repr = MochiKit.Base.repr;
- var params = this.params;
- var conditions = [];
- var clause, i;
-
- function childElements(element) {
- return "MochiKit.Base.filter(function (node) { return node.nodeType == 1; }, " + element + ".childNodes)";
- }
-
- if (params.wildcard) {
- conditions.push('true');
- }
- if (clause = params.id) {
- conditions.push('element.id == ' + repr(clause));
- }
- if (clause = params.tagName) {
- conditions.push('element.tagName.toUpperCase() == ' + repr(clause));
- }
- if ((clause = params.classNames).length > 0) {
- for (i = 0; i < clause.length; i++) {
- conditions.push('MochiKit.DOM.hasElementClass(element, ' + repr(clause[i]) + ')');
- }
- }
- if ((clause = params.pseudoClassNames).length > 0) {
- for (i = 0; i < clause.length; i++) {
- var match = clause[i].match(/^([^(]+)(?:\((.*)\))?$/);
- var pseudoClass = match[1];
- var pseudoClassArgument = match[2];
- switch (pseudoClass) {
- case 'root':
- conditions.push('element.nodeType == 9 || element === element.ownerDocument.documentElement'); break;
- case 'nth-child':
- case 'nth-last-child':
- case 'nth-of-type':
- case 'nth-last-of-type':
- match = pseudoClassArgument.match(/^((?:(\d+)n\+)?(\d+)|odd|even)$/);
- if (!match) {
- throw "Invalid argument to pseudo element nth-child: " + pseudoClassArgument;
- }
- var a, b;
- if (match[0] == 'odd') {
- a = 2;
- b = 1;
- } else if (match[0] == 'even') {
- a = 2;
- b = 0;
- } else {
- a = match[2] && parseInt(match) || null;
- b = parseInt(match[3]);
- }
- conditions.push('this.nthChild(element,' + a + ',' + b
- + ',' + !!pseudoClass.match('^nth-last') // Reverse
- + ',' + !!pseudoClass.match('of-type$') // Restrict to same tagName
- + ')');
- break;
- case 'first-child':
- conditions.push('this.nthChild(element, null, 1)');
- break;
- case 'last-child':
- conditions.push('this.nthChild(element, null, 1, true)');
- break;
- case 'first-of-type':
- conditions.push('this.nthChild(element, null, 1, false, true)');
- break;
- case 'last-of-type':
- conditions.push('this.nthChild(element, null, 1, true, true)');
- break;
- case 'only-child':
- conditions.push(childElements('element.parentNode') + '.length == 1');
- break;
- case 'only-of-type':
- conditions.push('MochiKit.Base.filter(function (node) { return node.tagName == element.tagName; }, ' + childElements('element.parentNode') + ').length == 1');
- break;
- case 'empty':
- conditions.push('element.childNodes.length == 0');
- break;
- case 'enabled':
- conditions.push('(this.isUIElement(element) && element.disabled === false)');
- break;
- case 'disabled':
- conditions.push('(this.isUIElement(element) && element.disabled === true)');
- break;
- case 'checked':
- conditions.push('(this.isUIElement(element) && element.checked === true)');
- break;
- case 'not':
- var subselector = new MochiKit.Selector.Selector(pseudoClassArgument);
- conditions.push('!( ' + subselector.buildMatchExpression() + ')')
- break;
- }
- }
- }
- if (clause = params.attributes) {
- MochiKit.Base.map(function (attribute) {
- var value = 'MochiKit.DOM.getNodeAttribute(element, ' + repr(attribute.name) + ')';
- var splitValueBy = function (delimiter) {
- return value + '.split(' + repr(delimiter) + ')';
- }
-
- switch (attribute.operator) {
- case '=':
- conditions.push(value + ' == ' + repr(attribute.value));
- break;
- case '~=':
- conditions.push(value + ' && MochiKit.Base.findValue(' + splitValueBy(' ') + ', ' + repr(attribute.value) + ') > -1');
- break;
- case '^=':
- conditions.push(value + '.substring(0, ' + attribute.value.length + ') == ' + repr(attribute.value));
- break;
- case '$=':
- conditions.push(value + '.substring(' + value + '.length - ' + attribute.value.length + ') == ' + repr(attribute.value));
- break;
- case '*=':
- conditions.push(value + '.match(' + repr(attribute.value) + ')');
- break;
- case '|=':
- conditions.push(
- value + ' && ' + splitValueBy('-') + '[0].toUpperCase() == ' + repr(attribute.value.toUpperCase())
- );
- break;
- case '!=':
- conditions.push(value + ' != ' + repr(attribute.value));
- break;
- case '':
- case undefined:
- conditions.push(value + ' != null');
- break;
- default:
- throw 'Unknown operator ' + attribute.operator + ' in selector';
- }
- }, clause);
- }
-
- return conditions.join(' && ');
- },
-
- /** @id MochiKit.Selector.Selector.prototype.compileMatcher */
- compileMatcher: function () {
- this.match = new Function('element', 'if (!element.tagName) return false; \
- return ' + this.buildMatchExpression());
- },
-
- /** @id MochiKit.Selector.Selector.prototype.nthChild */
- nthChild: function (element, a, b, reverse, sametag){
- var siblings = MochiKit.Base.filter(function (node) {
- return node.nodeType == 1;
- }, element.parentNode.childNodes);
- if (sametag) {
- siblings = MochiKit.Base.filter(function (node) {
- return node.tagName == element.tagName;
- }, siblings);
- }
- if (reverse) {
- siblings = MochiKit.Iter.reversed(siblings);
- }
- if (a) {
- var actualIndex = MochiKit.Base.findIdentical(siblings, element);
- return ((actualIndex + 1 - b) / a) % 1 == 0;
- } else {
- return b == MochiKit.Base.findIdentical(siblings, element) + 1;
- }
- },
-
- /** @id MochiKit.Selector.Selector.prototype.isUIElement */
- isUIElement: function (element) {
- return MochiKit.Base.findValue(['input', 'button', 'select', 'option', 'textarea', 'object'],
- element.tagName.toLowerCase()) > -1;
- },
-
- /** @id MochiKit.Selector.Selector.prototype.findElements */
- findElements: function (scope, axis) {
- var element;
-
- if (axis == undefined) {
- axis = "";
- }
-
- function inScope(element, scope) {
- if (axis == "") {
- return MochiKit.DOM.isChildNode(element, scope);
- } else if (axis == ">") {
- return element.parentNode == scope;
- } else if (axis == "+") {
- return element == nextSiblingElement(scope);
- } else if (axis == "~") {
- var sibling = scope;
- while (sibling = nextSiblingElement(sibling)) {
- if (element == sibling) {
- return true;
- }
- }
- return false;
- } else {
- throw "Invalid axis: " + axis;
- }
- }
-
- if (element = MochiKit.DOM.getElement(this.params.id)) {
- if (this.match(element)) {
- if (!scope || inScope(element, scope)) {
- return [element];
- }
- }
- }
-
- function nextSiblingElement(node) {
- node = node.nextSibling;
- while (node && node.nodeType != 1) {
- node = node.nextSibling;
- }
- return node;
- }
-
- if (axis == "") {
- scope = (scope || MochiKit.DOM.currentDocument()).getElementsByTagName(this.params.tagName || '*');
- } else if (axis == ">") {
- if (!scope) {
- throw "> combinator not allowed without preceeding expression";
- }
- scope = MochiKit.Base.filter(function (node) {
- return node.nodeType == 1;
- }, scope.childNodes);
- } else if (axis == "+") {
- if (!scope) {
- throw "+ combinator not allowed without preceeding expression";
- }
- scope = nextSiblingElement(scope) && [nextSiblingElement(scope)];
- } else if (axis == "~") {
- if (!scope) {
- throw "~ combinator not allowed without preceeding expression";
- }
- var newscope = [];
- while (nextSiblingElement(scope)) {
- scope = nextSiblingElement(scope);
- newscope.push(scope);
- }
- scope = newscope;
- }
-
- if (!scope) {
- return [];
- }
-
- var results = MochiKit.Base.filter(MochiKit.Base.bind(function (scopeElt) {
- return this.match(scopeElt);
- }, this), scope);
-
- return results;
- },
-
- /** @id MochiKit.Selector.Selector.prototype.repr */
- repr: function () {
- return 'Selector(' + this.expression + ')';
- },
-
- toString: MochiKit.Base.forwardCall("repr")
-};
-
-MochiKit.Base.update(MochiKit.Selector, {
-
- /** @id MochiKit.Selector.findChildElements */
- findChildElements: function (element, expressions) {
- return MochiKit.Base.flattenArray(MochiKit.Base.map(function (expression) {
- var nextScope = "";
- return MochiKit.Iter.reduce(function (results, expr) {
- if (match = expr.match(/^[>+~]$/)) {
- nextScope = match[0];
- return results;
- } else {
- var selector = new MochiKit.Selector.Selector(expr);
- var elements = MochiKit.Iter.reduce(function (elements, result) {
- return MochiKit.Base.extend(elements, selector.findElements(result || element, nextScope));
- }, results, []);
- nextScope = "";
- return elements;
- }
- }, expression.replace(/(^\s+|\s+$)/g, '').split(/\s+/), [null]);
- }, expressions));
- },
-
- findDocElements: function () {
- return MochiKit.Selector.findChildElements(MochiKit.DOM.currentDocument(), arguments);
- },
-
- __new__: function () {
- var m = MochiKit.Base;
-
- this.$$ = this.findDocElements;
-
- this.EXPORT_TAGS = {
- ":common": this.EXPORT,
- ":all": m.concat(this.EXPORT, this.EXPORT_OK)
- };
-
- m.nameFunctions(this);
- }
-});
-
-MochiKit.Selector.__new__();
-
-MochiKit.Base._exportSymbols(this, MochiKit.Selector);
-
generated by cgit v1.3 (git 2.53.0) at 2026-06-29 21:21:44 +0000