496 lines
12 KiB
JavaScript
496 lines
12 KiB
JavaScript
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var $ = require('../static'),
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utils = require('../utils'),
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isTag = utils.isTag,
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domEach = utils.domEach,
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hasOwn = Object.prototype.hasOwnProperty,
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camelCase = utils.camelCase,
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cssCase = utils.cssCase,
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rspace = /\s+/,
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dataAttrPrefix = 'data-',
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_ = {
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forEach: require('lodash.foreach'),
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extend: require('lodash.assignin'),
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some: require('lodash.some')
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},
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// Lookup table for coercing string data-* attributes to their corresponding
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// JavaScript primitives
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primitives = {
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null: null,
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true: true,
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false: false
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},
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// Attributes that are booleans
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rboolean = /^(?:autofocus|autoplay|async|checked|controls|defer|disabled|hidden|loop|multiple|open|readonly|required|scoped|selected)$/i,
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// Matches strings that look like JSON objects or arrays
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rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/;
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var getAttr = function(elem, name) {
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if (!elem || !isTag(elem)) return;
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if (!elem.attribs) {
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elem.attribs = {};
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}
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// Return the entire attribs object if no attribute specified
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if (!name) {
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return elem.attribs;
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}
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if (hasOwn.call(elem.attribs, name)) {
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// Get the (decoded) attribute
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return rboolean.test(name) ? name : elem.attribs[name];
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}
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// Mimic the DOM and return text content as value for `option's`
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if (elem.name === 'option' && name === 'value') {
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return $.text(elem.children);
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}
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// Mimic DOM with default value for radios/checkboxes
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if (elem.name === 'input' &&
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(elem.attribs.type === 'radio' || elem.attribs.type === 'checkbox') &&
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name === 'value') {
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return 'on';
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}
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};
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var setAttr = function(el, name, value) {
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if (value === null) {
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removeAttribute(el, name);
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} else {
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el.attribs[name] = value+'';
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}
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};
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exports.attr = function(name, value) {
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// Set the value (with attr map support)
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if (typeof name === 'object' || value !== undefined) {
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if (typeof value === 'function') {
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return domEach(this, function(i, el) {
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setAttr(el, name, value.call(el, i, el.attribs[name]));
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});
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}
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return domEach(this, function(i, el) {
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if (!isTag(el)) return;
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if (typeof name === 'object') {
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_.forEach(name, function(value, name) {
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setAttr(el, name, value);
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});
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} else {
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setAttr(el, name, value);
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}
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});
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}
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return getAttr(this[0], name);
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};
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var getProp = function (el, name) {
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if (!el || !isTag(el)) return;
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return el.hasOwnProperty(name)
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? el[name]
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: rboolean.test(name)
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? getAttr(el, name) !== undefined
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: getAttr(el, name);
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};
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var setProp = function (el, name, value) {
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el[name] = rboolean.test(name) ? !!value : value;
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};
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exports.prop = function (name, value) {
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var i = 0,
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property;
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if (typeof name === 'string' && value === undefined) {
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switch (name) {
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case 'style':
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property = this.css();
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_.forEach(property, function (v, p) {
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property[i++] = p;
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});
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property.length = i;
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break;
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case 'tagName':
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case 'nodeName':
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property = this[0].name.toUpperCase();
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break;
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default:
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property = getProp(this[0], name);
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}
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return property;
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}
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if (typeof name === 'object' || value !== undefined) {
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if (typeof value === 'function') {
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return domEach(this, function(i, el) {
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setProp(el, name, value.call(el, i, getProp(el, name)));
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});
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}
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return domEach(this, function(i, el) {
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if (!isTag(el)) return;
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if (typeof name === 'object') {
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_.forEach(name, function(val, name) {
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setProp(el, name, val);
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});
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} else {
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setProp(el, name, value);
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}
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});
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}
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};
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var setData = function(el, name, value) {
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if (!el.data) {
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el.data = {};
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}
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if (typeof name === 'object') return _.extend(el.data, name);
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if (typeof name === 'string' && value !== undefined) {
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el.data[name] = value;
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} else if (typeof name === 'object') {
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_.extend(el.data, name);
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}
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};
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// Read the specified attribute from the equivalent HTML5 `data-*` attribute,
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// and (if present) cache the value in the node's internal data store. If no
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// attribute name is specified, read *all* HTML5 `data-*` attributes in this
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// manner.
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var readData = function(el, name) {
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var readAll = arguments.length === 1;
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var domNames, domName, jsNames, jsName, value, idx, length;
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if (readAll) {
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domNames = Object.keys(el.attribs).filter(function(attrName) {
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return attrName.slice(0, dataAttrPrefix.length) === dataAttrPrefix;
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});
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jsNames = domNames.map(function(domName) {
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return camelCase(domName.slice(dataAttrPrefix.length));
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});
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} else {
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domNames = [dataAttrPrefix + cssCase(name)];
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jsNames = [name];
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}
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for (idx = 0, length = domNames.length; idx < length; ++idx) {
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domName = domNames[idx];
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jsName = jsNames[idx];
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if (hasOwn.call(el.attribs, domName)) {
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value = el.attribs[domName];
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if (hasOwn.call(primitives, value)) {
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value = primitives[value];
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} else if (value === String(Number(value))) {
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value = Number(value);
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} else if (rbrace.test(value)) {
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try {
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value = JSON.parse(value);
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} catch(e){ }
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}
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el.data[jsName] = value;
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}
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}
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return readAll ? el.data : value;
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};
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exports.data = function(name, value) {
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var elem = this[0];
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if (!elem || !isTag(elem)) return;
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if (!elem.data) {
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elem.data = {};
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}
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// Return the entire data object if no data specified
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if (!name) {
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return readData(elem);
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}
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// Set the value (with attr map support)
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if (typeof name === 'object' || value !== undefined) {
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domEach(this, function(i, el) {
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setData(el, name, value);
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});
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return this;
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} else if (hasOwn.call(elem.data, name)) {
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return elem.data[name];
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}
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return readData(elem, name);
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};
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/**
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* Get the value of an element
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*/
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exports.val = function(value) {
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var querying = arguments.length === 0,
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element = this[0];
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if(!element) return;
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switch (element.name) {
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case 'textarea':
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return this.text(value);
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case 'input':
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switch (this.attr('type')) {
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case 'radio':
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if (querying) {
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return this.attr('value');
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} else {
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this.attr('value', value);
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return this;
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}
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break;
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default:
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return this.attr('value', value);
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}
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return;
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case 'select':
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var option = this.find('option:selected'),
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returnValue;
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if (option === undefined) return undefined;
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if (!querying) {
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if (!this.attr().hasOwnProperty('multiple') && typeof value == 'object') {
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return this;
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}
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if (typeof value != 'object') {
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value = [value];
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}
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this.find('option').removeAttr('selected');
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for (var i = 0; i < value.length; i++) {
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this.find('option[value="' + value[i] + '"]').attr('selected', '');
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}
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return this;
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}
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returnValue = option.attr('value');
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if (this.attr().hasOwnProperty('multiple')) {
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returnValue = [];
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domEach(option, function(i, el) {
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returnValue.push(getAttr(el, 'value'));
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});
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}
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return returnValue;
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case 'option':
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if (!querying) {
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this.attr('value', value);
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return this;
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}
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return this.attr('value');
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}
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};
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/**
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* Remove an attribute
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*/
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var removeAttribute = function(elem, name) {
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if (!elem.attribs || !hasOwn.call(elem.attribs, name))
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return;
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delete elem.attribs[name];
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};
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exports.removeAttr = function(name) {
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domEach(this, function(i, elem) {
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removeAttribute(elem, name);
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});
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return this;
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};
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exports.hasClass = function(className) {
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return _.some(this, function(elem) {
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var attrs = elem.attribs,
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clazz = attrs && attrs['class'],
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idx = -1,
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end;
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if (clazz) {
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while ((idx = clazz.indexOf(className, idx+1)) > -1) {
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end = idx + className.length;
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if ((idx === 0 || rspace.test(clazz[idx-1]))
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&& (end === clazz.length || rspace.test(clazz[end]))) {
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return true;
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}
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}
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}
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});
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};
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exports.addClass = function(value) {
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// Support functions
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if (typeof value === 'function') {
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return domEach(this, function(i, el) {
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var className = el.attribs['class'] || '';
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exports.addClass.call([el], value.call(el, i, className));
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});
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}
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// Return if no value or not a string or function
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if (!value || typeof value !== 'string') return this;
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var classNames = value.split(rspace),
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numElements = this.length;
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for (var i = 0; i < numElements; i++) {
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// If selected element isn't a tag, move on
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if (!isTag(this[i])) continue;
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// If we don't already have classes
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var className = getAttr(this[i], 'class'),
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numClasses,
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setClass;
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if (!className) {
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setAttr(this[i], 'class', classNames.join(' ').trim());
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} else {
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setClass = ' ' + className + ' ';
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numClasses = classNames.length;
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// Check if class already exists
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for (var j = 0; j < numClasses; j++) {
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var appendClass = classNames[j] + ' ';
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if (setClass.indexOf(' ' + appendClass) < 0)
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setClass += appendClass;
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}
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setAttr(this[i], 'class', setClass.trim());
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}
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}
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return this;
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};
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var splitClass = function(className) {
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return className ? className.trim().split(rspace) : [];
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};
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exports.removeClass = function(value) {
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var classes,
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numClasses,
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removeAll;
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// Handle if value is a function
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if (typeof value === 'function') {
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return domEach(this, function(i, el) {
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exports.removeClass.call(
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[el], value.call(el, i, el.attribs['class'] || '')
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);
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});
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}
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classes = splitClass(value);
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numClasses = classes.length;
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removeAll = arguments.length === 0;
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return domEach(this, function(i, el) {
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||
|
|
if (!isTag(el)) return;
|
||
|
|
|
||
|
|
if (removeAll) {
|
||
|
|
// Short circuit the remove all case as this is the nice one
|
||
|
|
el.attribs.class = '';
|
||
|
|
} else {
|
||
|
|
var elClasses = splitClass(el.attribs.class),
|
||
|
|
index,
|
||
|
|
changed;
|
||
|
|
|
||
|
|
for (var j = 0; j < numClasses; j++) {
|
||
|
|
index = elClasses.indexOf(classes[j]);
|
||
|
|
|
||
|
|
if (index >= 0) {
|
||
|
|
elClasses.splice(index, 1);
|
||
|
|
changed = true;
|
||
|
|
|
||
|
|
// We have to do another pass to ensure that there are not duplicate
|
||
|
|
// classes listed
|
||
|
|
j--;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (changed) {
|
||
|
|
el.attribs.class = elClasses.join(' ');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
exports.toggleClass = function(value, stateVal) {
|
||
|
|
// Support functions
|
||
|
|
if (typeof value === 'function') {
|
||
|
|
return domEach(this, function(i, el) {
|
||
|
|
exports.toggleClass.call(
|
||
|
|
[el],
|
||
|
|
value.call(el, i, el.attribs['class'] || '', stateVal),
|
||
|
|
stateVal
|
||
|
|
);
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
// Return if no value or not a string or function
|
||
|
|
if (!value || typeof value !== 'string') return this;
|
||
|
|
|
||
|
|
var classNames = value.split(rspace),
|
||
|
|
numClasses = classNames.length,
|
||
|
|
state = typeof stateVal === 'boolean' ? stateVal ? 1 : -1 : 0,
|
||
|
|
numElements = this.length,
|
||
|
|
elementClasses,
|
||
|
|
index;
|
||
|
|
|
||
|
|
for (var i = 0; i < numElements; i++) {
|
||
|
|
// If selected element isn't a tag, move on
|
||
|
|
if (!isTag(this[i])) continue;
|
||
|
|
|
||
|
|
elementClasses = splitClass(this[i].attribs.class);
|
||
|
|
|
||
|
|
// Check if class already exists
|
||
|
|
for (var j = 0; j < numClasses; j++) {
|
||
|
|
// Check if the class name is currently defined
|
||
|
|
index = elementClasses.indexOf(classNames[j]);
|
||
|
|
|
||
|
|
// Add if stateValue === true or we are toggling and there is no value
|
||
|
|
if (state >= 0 && index < 0) {
|
||
|
|
elementClasses.push(classNames[j]);
|
||
|
|
} else if (state <= 0 && index >= 0) {
|
||
|
|
// Otherwise remove but only if the item exists
|
||
|
|
elementClasses.splice(index, 1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
this[i].attribs.class = elementClasses.join(' ');
|
||
|
|
}
|
||
|
|
|
||
|
|
return this;
|
||
|
|
};
|
||
|
|
|
||
|
|
exports.is = function (selector) {
|
||
|
|
if (selector) {
|
||
|
|
return this.filter(selector).length > 0;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
};
|
||
|
|
|