Test

/* Small JS library containing stuff I use often. Author: [[User:Lupo]], June 2009 License: Quadruple licensed GFDL, GPL, LGPL and Creative Commons Attribution 3.0 (CC-BY-3.0) Choose whichever license of these you like best :-) Includes the following components: - Object enhancements (clone, merge) - String enhancements (trim, ...) - Array enhancements (JS 1.6) - Function enhancements (bind) - LAPI Most basic DOM functions: $ (getElementById), make - LAPI.Ajax Ajax request implementation, tailored for MediaWiki/WMF sites - LAPI.Browser Browser detection (general) - LAPI.DOM DOM helpers, including a cross-browser DOM parser - LAPI.WP MediaWiki/WMF-specific DOM routines - LAPI.Edit Simple editor implementation with save, cancel, preview (for WMF sites) - LAPI.Evt Event handler routines (general) - LAPI.Pos Position calculations (general) */ // // Global: importScript (from wiki.js, for MediaWiki:AjaxSubmit.js) // Configuration: set this to the URL of your image server. The value is a string representation // of a regular expression. For instance, for Wikia, use "http://images\\d\\.wikia\\.nocookie\\.net". // Remember to double-escape the backslash. /* global importScript, LAPI, ajaxSubmit */ /* jshint unused:false, laxcomma:true, smarttabs:true, loopfunc:true, forin:false */ /* eslint-disable one-var, vars-on-top, camelcase, no-use-before-define, eqeqeq, no-bitwise */ if (window.LAPI_file_store === undefined) var LAPI_file_store = '(https?:)?//upload\\.wikimedia\\.org/'; // Some basic routines, mainly enhancements of the String, Array, and Function objects. // Some taken from JavaScript 1.6, some own. /** Object enhancements ************/ // Note: adding these to the prototype may break other code that assumes that // {} has no properties at all. Object.clone = function (source, includeInherited) { if (!source) return null; var result = {}; for (var key in source) { if (includeInherited || source.hasOwnProperty(key)) result[key] = source[key]; } return result; }; Object.merge = function (from, into, includeInherited) { if (!from) return into; for (var key in from) { if (includeInherited || from.hasOwnProperty(key)) into[key] = from[key]; } return into; }; Object.mergeSome = function (from, into, includeInherited, predicate) { if (!from) return into; if (!predicate) return Object.merge(from, into, includeInherited); for (var key in from) { if ((includeInherited || from.hasOwnProperty(key)) && predicate(from, into, key)) into[key] = from[key]; } return into; }; Object.mergeSet = function (from, into, includeInherited) { return Object.mergeSome(from, into, includeInherited, function (src, tgt, key) { return src[key] !== null; }); }; /** String enhancements (JavaScript 1.6) ************/ // Removes given characters from the beginning of the string. // If no characters are given, defaults to removing whitespace. if (!String.prototype.trimLeft) { String.prototype.trimLeft = function (chars) { if (!chars) return this.replace(/^\s\s*/, ''); return this.replace(new RegExp('^[' + chars.escapeRE() + ']+'), ''); }; } String.prototype.trimFront = String.prototype.trimLeft; // Synonym // Removes given characters from the end of the string. // If no characters are given, defaults to removing whitespace. if (!String.prototype.trimRight) { String.prototype.trimRight = function (chars) { if (!chars) return this.replace(/\s\s*$/, ''); return this.replace(new RegExp('[' + chars.escapeRE() + ']+$'), ''); }; } String.prototype.trimEnd = String.prototype.trimRight; // Synonym /** Further String enhancements ************/ // Returns true if the string begins with prefix. if (!String.prototype.startsWith) { String.prototype.startsWith = function (prefix) { return this.indexOf(prefix) === 0; }; } // Returns true if the string ends in suffix if (!String.prototype.endsWith) { String.prototype.endsWith = function (suffix) { return this.lastIndexOf(suffix) + suffix.length === this.length; }; } // Returns true if the string contains s. String.prototype.contains = function (s) { return this.indexOf(s) >= 0; }; // Replace all occurrences of a string pattern by replacement. String.prototype.replaceAll = function (pattern, replacement) { return this.split(pattern).join(replacement); }; // Escape all backslashes and single or double quotes such that the result can // be used in JavaScript inside quotes or double quotes. String.prototype.stringifyJS = function () { return this.replace(/([\\'"]|%5C|%27|%22)/g, '\\$1') // ' // Fix syntax coloring .replace(/\n/g, '\\n'); }; // Escape all RegExp special characters such that the result can be safely used // in a RegExp as a literal. String.prototype.escapeRE = function () { return this.replace(/([\\{}()|.?*+^$[\]])/g, '\\$1'); }; String.prototype.escapeXML = function (quot, apos) { var s = this.replace(/&/g, '&') .replace(/\xa0/g, ' ') .replace(//g, '>'); if (quot) s = s.replace(/"/g, '"'); // " // Fix syntax coloring if (apos) s = s.replace(/'/g, '''); // ' // Fix syntax coloring return s; }; String.prototype.decodeXML = function () { return this.replace(/"/g, '"') .replace(/'/g, '\'') .replace(/>/g, '>') .replace(/</g, '<') .replace(/ /g, '\xa0') .replace(/&/g, '&'); }; String.prototype.capitalizeFirst = function () { return this.substring(0, 1).toUpperCase() + this.substring(1); }; String.prototype.lowercaseFirst = function () { return this.substring(0, 1).toLowerCase() + this.substring(1); }; // This is actually a function on URLs, but since URLs typically are strings in // JavaScript, let's include this one here, too. String.prototype.getParamValue = function (param) { var re = new RegExp('[&?]' + param.escapeRE() + '=([^&#]*)'), m = re.exec(this); if (m && m.length >= 2) return decodeURIComponent(m[1]); return null; }; String.getParamValue = function (param, url) { url = url || document.location.href; try { return url.getParamValue(param); } catch (e) { return null; } }; /** Function enhancements (JavaScript 1.8.5.) ************/ if (!Function.prototype.bind) { // Return a function that calls the function with 'this' bound to 'thisObject' Function.prototype.bind = function (thisObject) { var f = this, obj = thisObject, slice = Array.prototype.slice, prefixedArgs = slice.call(arguments, 1); return function () { return f.apply(obj, prefixedArgs.concat(slice.call(arguments))); }; }; } /** Array enhancements (JavaScript 1.6) ************/ // Note that contrary to JS 1.6, we treat the thisObject as optional. // Don't add to the prototype, that would break for (var key in array) loops! // Returns a new array containing only those elements for which predicate // is true. if (!Array.filter) { Array.filter = function (target, predicate, thisObject) { if (target === null) return null; if (typeof target.filter === 'function') return target.filter(predicate, thisObject); if (typeof predicate !== 'function') throw new Error('Array.filter: predicate must be a function'); var l = target.length, result = []; if (thisObject) predicate = predicate.bind(thisObject); for (var i = 0; i < l; i++) { if (i in target) { var curr = target[i]; if (predicate(curr, i, target)) result[result.length] = curr; } } return result; }; } Array.select = Array.filter; // Synonym // Calls iterator on all elements of the array if (!Array.forEach) { Array.forEach = function (target, iterator, thisObject) { if (target === null) return; if (typeof target.forEach === 'function') { target.forEach(iterator, thisObject); return; } if (typeof iterator !== 'function') throw new Error('Array.forEach: iterator must be a function'); var l = target.length; if (thisObject) iterator = iterator.bind(thisObject); for (var i = 0; i < l; i++) { if (i in target) iterator(target[i], i, target); } }; } // Returns true if predicate is true for every element of the array, false otherwise if (!Array.every) { Array.every = function (target, predicate, thisObject) { if (target === null) return true; if (typeof target.every === 'function') return target.every(predicate, thisObject); if (typeof predicate !== 'function') throw new Error('Array.every: predicate must be a function'); var l = target.length; if (thisObject) predicate = predicate.bind(thisObject); for (var i = 0; i < l; i++) { if (i in target && !predicate(target[i], i, target)) return false; } return true; }; } Array.forAll = Array.every; // Synonym // Returns true if predicate is true for at least one element of the array, false otherwise. if (!Array.some) { Array.some = function (target, predicate, thisObject) { if (target === null) return false; if (typeof target.some === 'function') return target.some(predicate, thisObject); if (typeof predicate !== 'function') throw new Error('Array.some: predicate must be a function'); var l = target.length; if (thisObject) predicate = predicate.bind(thisObject); for (var i = 0; i < l; i++) { if (i in target && predicate(target[i], i, target)) return true; } return false; }; } Array.exists = Array.some; // Synonym // Returns a new array built by applying mapper to all elements. if (!Array.map) { Array.map = function (target, mapper, thisObject) { if (target === null) return null; if (typeof target.map === 'function') return target.map(mapper, thisObject); if (typeof mapper !== 'function') throw new Error('Array.map: mapper must be a function'); var l = target.length, result = []; if (thisObject) mapper = mapper.bind(thisObject); for (var i = 0; i < l; i++) { if (i in target) result[i] = mapper(target[i], i, target); } return result; }; } if (!Array.indexOf) { Array.indexOf = function (target, elem, from) { if (target === null) return -1; if (typeof target.indexOf === 'function') return target.indexOf(elem, from); if (!target.length) return -1; var l = target.length; if (isNaN(from)) from = 0; else from = from || 0; from = (from < 0) ? Math.ceil(from) : Math.floor(from); if (from < 0) from += l; if (from < 0) from = 0; while (from < l) { if (from in target && target[from] === elem) return from; from += 1; } return -1; }; } /** Additional Array enhancements ************/ Array.remove = function (target, elem) { var i = Array.indexOf(target, elem); if (i >= 0) target.splice(i, 1); }; Array.contains = function (target, elem) { return Array.indexOf(target, elem) >= 0; }; Array.flatten = function (target) { var result = []; Array.forEach(target, function (elem) { result = result.concat(elem); }); return result; }; // Calls selector on the array elements until it returns a non-null object // and then returns that object. If selector always returns null, any also // returns null. See also Array.map. Array.any = function (target, selector, thisObject) { if (target === null) return null; if (typeof selector !== 'function') throw new Error('Array.any: selector must be a function'); var l = target.length, result = null; if (thisObject) selector = selector.bind(thisObject); for (var i = 0; i < l; i++) { if (i in target) { result = selector(target[i], i, target); if (result !== null) return result; } } return null; }; // Return a contiguous array of the contents of source, which may be an array or pseudo-array, // basically anything that has a length and can be indexed. (E.g. live HTMLCollections, but also // Strings, or objects, or the arguments "variable". Array.make = function (source) { if (!source || !source.length) return null; var result = [], l = source.length; for (var i = 0; i < l; i++) { if (i in source) result[result.length] = source[i]; } return result; }; if (!window.LAPI) { var LAPI = window.LAPI = { Ajax: { getRequest: function () { var request = null; try { request = new XMLHttpRequest(); } catch (anything) { request = null; if (window.ActiveXObject) { if (!LAPI.Ajax.getRequest.msXMLHttpID) { var XHR_ids = ['MSXML2.XMLHTTP.6.0', 'MSXML2.XMLHTTP.3.0', 'MSXML2.XMLHTTP', 'Microsoft.XMLHTTP']; for (var i = 0; i < XHR_ids.length && !request; i++) { try { request = new ActiveXObject(XHR_ids[i]); if (request) LAPI.Ajax.getRequest.msXMLHttpID = XHR_ids[i]; } catch (ex) { request = null; } } if (!request) LAPI.Ajax.getRequest.msXMLHttpID = null; } else if (LAPI.Ajax.getRequest.msXMLHttpID) { request = new ActiveXObject(LAPI.Ajax.getRequest.msXMLHttpID); } } // end if IE } // end try-catch return request; } }, $: function (selector, doc, multi) { if (!selector || !selector.length) return null; doc = doc || document; if (typeof selector === 'string') { if (selector[0] === '#') selector = selector.substring(1); if (selector.length > 0) return doc.getElementById(selector); return null; } else { if (multi) { return Array.map(selector, function (id) { return LAPI.$(id, doc); }); } return Array.any(selector, function (id) { return LAPI.$(id, doc); }); } }, make: function (tag, attribs, css, doc) { doc = doc || document; if (!tag || !tag.length) throw new Error('No tag for LAPI.make'); var result = doc.createElement(tag); Object.mergeSet(attribs, result); Object.mergeSet(css, result.style); if (/^(form|input|button|select|textarea)$/.test(tag) && result.id && result.id.length > 0 && !result.name) result.name = result.id; return result; }, formatException: function (ex, asDOM) { var name = ex.name || '', msg = ex.message || '', file = null, line = null; if (msg && msg.length > 0 && msg[0] === '#') { // User msg: don't confuse users with error locations. (Note: could also use // custom exception types, but that doesn't work right on IE6.) msg = msg.substring(1); } else { file = ex.fileName || ex.sourceURL || null; // Gecko, Webkit, others line = ex.lineNumber || ex.line || null; // Gecko, Webkit, others } if (name || msg) { if (!asDOM) { return ( 'Exception ' + name + ': ' + msg + (file ? '\nFile ' + file + (line ? ' (' + line + ')' : '') : '')); } else { var ex_msg = LAPI.make('div'); ex_msg.appendChild(document.createTextNode('Exception ' + name + ': ' + msg)); if (file) { ex_msg.appendChild(LAPI.make('br')); ex_msg.appendChild(document.createTextNode('File ' + file + (line ? ' (' + line + ')' : ''))); } return ex_msg; } } else { return null; } } }; } // end if (guard) if (!LAPI.Browser) { // Yes, usually it's better to test for available features. But sometimes there's no // way around testing for specific browsers (differences in dimensions, layout errors, // etc.) LAPI.Browser = (function (agent) { var result = {}; result.client = agent; var m = agent.match(/applewebkit\/(\d+)/); result.is_webkit = (m !== null); result.is_safari = result.is_webkit && !agent.contains('spoofer'); result.webkit_version = (m ? parseInt(m[1]) : 0); result.is_khtml = navigator.vendor === 'KDE' || (document.childNodes && !document.all && !navigator.taintEnabled && navigator.accentColorName); result.is_gecko = agent.contains('gecko') && !/khtml|spoofer|netscape\/7\.0/.test(agent); result.is_ff_1 = agent.contains('firefox/1'); result.is_ff_2 = agent.contains('firefox/2'); result.is_ff_ge_2 = /firefox\/[2-9]|minefield\/3/.test(agent); result.is_ie = agent.contains('msie') || !!window.ActiveXObject; result.is_ie_lt_7 = false; if (result.is_ie) { var version = /msie ((\d|\.)+)/.exec(agent); result.is_ie_lt_7 = (version !== null && (parseFloat(version[1]) < 7)); } result.is_opera = agent.contains('opera'); result.is_opera_ge_9 = false; result.is_opera_95 = false; if (result.is_opera) { m = /opera\/((\d|\.)+)/.exec(agent); result.is_opera_95 = m && (parseFloat(m[1]) >= 9.5); result.is_opera_ge_9 = m && (parseFloat(m[1]) >= 9.0); } result.is_mac = agent.contains('mac'); return result; }(navigator.userAgent.toLowerCase())); } // end if (guard) if (!LAPI.DOM) { LAPI.DOM = { // IE6 doesn't have these Node constants in Node, so put them here ELEMENT_NODE: 1, ATTRIBUTE_NODE: 2, TEXT_NODE: 3, CDATA_SECTION_NODE: 4, ENTITY_REFERENCE_NODE: 5, ENTITY_NODE: 6, PROCESSING_INSTRUCTION_NODE: 7, COMMENT_NODE: 8, DOCUMENT_NODE: 9, DOCUMENT_TYPE_NODE: 10, DOCUMENT_FRAGMENT_NODE: 11, NOTATION_NODE: 12, cleanAttributeName: function (attr_name) { if (!LAPI.Browser.is_ie) return attr_name; if (!LAPI.DOM.cleanAttributeName._names) { LAPI.DOM.cleanAttributeName._names = { 'class': 'className', cellspacing: 'cellSpacing', cellpadding: 'cellPadding', colspan: 'colSpan', maxlength: 'maxLength', readonly: 'readOnly', rowspan: 'rowSpan', tabindex: 'tabIndex', valign: 'vAlign' }; } var cleaned = attr_name.toLowerCase(); return LAPI.DOM.cleanAttributeName._names[cleaned] || cleaned; }, importNode: function (into, node, deep) { if (!node) return null; if (into.importNode) return into.importNode(node, deep); if (node.ownerDocument === into) return node.cloneNode(deep); var new_node = null; switch (node.nodeType) { case LAPI.DOM.ELEMENT_NODE: new_node = into.createElement(node.nodeName); Array.forEach( node.attributes, function (attr) { if (attr && attr.nodeValue && attr.nodeValue.length > 0) new_node.setAttribute(LAPI.DOM.cleanAttributeName(attr.name), attr.nodeValue); }); new_node.style.cssText = node.style.cssText; if (deep) { Array.forEach( node.childNodes, function (child) { var copy = LAPI.DOM.importNode(into, child, true); if (copy) new_node.appendChild(copy); }); } return new_node; case LAPI.DOM.TEXT_NODE: return into.createTextNode(node.nodeValue); case LAPI.DOM.CDATA_SECTION_NODE: return (into.createCDATASection ? into.createCDATASection(node.nodeValue) : into.createTextNode(node.nodeValue)); case LAPI.DOM.COMMENT_NODE: return into.createComment(node.nodeValue); default: return null; } // end switch }, parse: function (str, content_type) { function getDocument(str, content_type) { if (typeof DOMParser !== 'undefined') { var parser = new DOMParser(); if (parser && parser.parseFromString) return parser.parseFromString(str, content_type); } // We don't have DOMParser if (LAPI.Browser.is_ie) { var doc = null; // Apparently, these can be installed side-by-side. Try to get the newest one available. // Unfortunately, one finds a variety of version strings on the net. I have no idea which // ones are correct. if (!LAPI.DOM.parse.msDOMDocumentID) { // If we find a parser, we cache it. If we cannot find one, we also remember that. var parsers = ['MSXML6.DOMDocument', 'MSXML5.DOMDocument', 'MSXML4.DOMDocument', 'MSXML3.DOMDocument', 'MSXML2.DOMDocument.5.0', 'MSXML2.DOMDocument.4.0', 'MSXML2.DOMDocument.3.0', 'MSXML2.DOMDocument', 'MSXML.DomDocument', 'Microsoft.XmlDom']; for (var i = 0; i < parsers.length && !doc; i++) { try { doc = new ActiveXObject(parsers[i]); if (doc) LAPI.DOM.parse.msDOMDocumentID = parsers[i]; } catch (ex) { doc = null; } } if (!doc) LAPI.DOM.parse.msDOMDocumentID = null; } else if (LAPI.DOM.parse.msDOMDocumentID) { doc = new ActiveXObject(LAPI.DOM.parse.msDOMDocumentID); } if (doc) { doc.async = false; doc.loadXML(str); return doc; } } // Try using a "data" URI (http://www.ietf.org/rfc/rfc2397). Reported to work on // older Safaris. content_type = content_type || 'application/xml'; var req = LAPI.Ajax.getRequest(); if (req) { // Synchronous is OK, since "data" URIs are local req.open('GET', 'data:' + content_type + ';charset=utf-8,' + encodeURIComponent(str), false); if (req.overrideMimeType) req.overrideMimeType(content_type); req.send(null); return req.responseXML; } return null; } // end getDocument var doc = null; try { doc = getDocument(str, content_type); } catch (ex) { doc = null; } if (((!doc || !doc.documentElement) && (str.search(/^\s*(]*>\s*)?= 0 || str.search(/^\s*= 0)) || (doc && (LAPI.Browser.is_ie && (!doc.documentElement && doc.parseError && doc.parseError.errorCode !== 0 && doc.parseError.reason.contains('Error processing resource') && doc.parseError.reason.contains('http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd'))))) { // Either the text specified an (X)HTML document, but we failed to get a Document, or we // hit the walls of the single-origin policy on IE which tries to get the DTD from the // URI specified... Let's fake a document: doc = LAPI.DOM.fakeHTMLDocument(str); } return doc; }, parseHTML: function (str/* , sanity_check*/) { // Always use a faked document; parsing as XML and then treating the result as HTML doesn't work right with HTML5. return LAPI.DOM.fakeHTMLDocument(str); }, fakeHTMLDocument: function (str) { var body_tag = //.exec(str); if (!body_tag || !body_tag.length) return null; body_tag = body_tag.index + body_tag[0].length; // Index after the opening body tag var body_end = str.lastIndexOf(''); if (body_end < 0) return null; var content = str.substring(body_tag, body_end); // Anything in between content = content.replace(//g, ''); // Sanitize: strip scripts return new LAPI.DOM.DocumentFacade(content); }, isValid: function (doc) { if (!doc) return doc; if (doc.parseError) { // IE if (doc.parseError.errorCode !== 0) throw new Error('XML parse error: ' + doc.parseError.reason + ' line ' + doc.parseError.line + ' col ' + doc.parseError.linepos + '\nsrc = ' + doc.parseError.srcText); } else { // FF... others? var root = doc.documentElement; if (/^parsererror$/i.test(root.tagName)) throw new Error('XML parse error: ' + root.getInnerText()); } return doc; }, hasClass: function (node, className) { if (!node) return false; return (' ' + node.className + ' ').contains(' ' + className + ' '); }, setContent: function (node, content) { if (content === null) return node; LAPI.DOM.removeChildren(node); if (content.nodeName) { // presumably a DOM tree, like a span or a document fragment node.appendChild(content); } else if (node.innerHTML !== undefined) { node.innerHTML = content.toString(); } else { node.appendChild(document.createTextNode(content.toString())); } return node; }, makeImage: function (src, width, height, title, doc) { return LAPI.make( 'img', { src: src, width: String(width), height: String(height), title: title }, doc); }, makeButton: function (id, text, f, submit, doc) { return LAPI.make( 'input', { id: id || '', type: (submit ? 'submit' : 'button'), value: text, onclick: f }, doc); }, makeLabel: function (id, text, for_elem, doc) { var label = LAPI.make('label', { id: id || '', htmlFor: for_elem }, null, doc); return LAPI.DOM.setContent(label, text); }, makeLink: function (url, text, tooltip, onclick, doc) { var lk = LAPI.make('a', { href: url, title: tooltip, onclick: onclick }, null, doc); return LAPI.DOM.setContent(lk, text || url); }, // Unfortunately, extending Node.prototype may not work on some browsers, // most notably (you've guessed it) IE... getInnerText: function (node) { if (node.textContent) return node.textContent; if (node.innerText) return node.innerText; var result = ''; if (node.nodeType === LAPI.DOM.TEXT_NODE) { result = node.nodeValue; } else { Array.forEach(node.childNodes, function (elem) { switch (elem.nodeType) { case LAPI.DOM.ELEMENT_NODE: result += LAPI.DOM.getInnerText(elem); break; case LAPI.DOM.TEXT_NODE: result += elem.nodeValue; break; } }); } return result; }, removeNode: function (node) { if (node.parentNode) node.parentNode.removeChild(node); return node; }, removeChildren: function (node) { // if (typeof (node.innerHTML) !== 'undefined') node.innerHTML = ""; // Not a good idea. On IE this destroys all contained nodes, even if they're still referenced // from JavaScript! Can't have that... while (node.firstChild) node.removeChild(node.firstChild); return node; }, insertNode: function (node, before) { before.parentNode.insertBefore(node, before); return node; }, insertAfter: function (node, after) { var next = after.nextSibling; after.parentNode.insertBefore(node, next); return node; }, replaceNode: function (node, newNode) { node.parentNode.replaceChild(node, newNode); return newNode; }, isParentOf: function (parent, child) { while (child && child !== parent && child.parentNode) child = child.parentNode; return child === parent; }, // Property is to be in CSS style, e.g. 'background-color', not in JS style ('backgroundColor')! // Use standard 'cssFloat' for float property. currentStyle: function (elem, property) { function normalize(prop) { // Don't use a regexp with a lambda function (available only in JS 1.3)... and I once had a // case where IE6 goofed grossly with a lambda function. Since then I try to avoid those // (though they're neat). if (prop === 'cssFloat') return 'styleFloat'; // We'll try both variants below, standard first... var result = prop.split('-'); result = Array.map(result, function (s) { if (s) return s.capitalizeFirst(); else return s; }); result = result.join(''); return result.lowercaseFirst(); } if (elem.ownerDocument.defaultView && elem.ownerDocument.defaultView.getComputedStyle) { // Gecko etc. if (property === 'cssFloat') property = 'float'; return elem.ownerDocument.defaultView.getComputedStyle(elem, null).getPropertyValue(property); } else { var result; if (elem.currentStyle) { // IE, has subtle differences to getComputedStyle result = elem.currentStyle[property] || elem.currentStyle[normalize(property)]; } else { // Not exactly right, but best effort result = elem.style[property] || elem.style[normalize(property)]; } // Convert em etc. to pixels. Kudos to Dean Edwards; see // http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291 if (!/^\d+(px)?$/i.test(result) && /^\d/.test(result) && elem.runtimeStyle) { var style = elem.style.left, runtimeStyle = elem.runtimeStyle.left; elem.runtimeStyle.left = elem.currentStyle.left; elem.style.left = result || 0; result = elem.style.pixelLeft + 'px'; elem.style.left = style; elem.runtimeStyle.left = runtimeStyle; } } }, // Load a given image in a given size. Parameters: // title // Full title of the image, including the "File:" namespace // url // If !== null, URL of an existing thumb for that image. If width is null, may contain the url // of the full image. // width // If !== null, desired width of the image, otherwise load the full image // height // If width !== null, height should also be set. // auto_thumbs // True if missing thumbnails are generated automatically. // success // Function to be called once the image is loaded. Takes one parameter: the IMG-tag of // the loaded image // failure // Function to be called if the image cannot be loaded. Takes one parameter: a string // containing an error message. loadImage: function (title, url, width, height, auto_thumbs, success, failure) { if (auto_thumbs && url) { // MediaWiki-style with 404 handler. Set condition to false if your wiki does not have such a // setup. var img_src = null; if (width) { var i = url.lastIndexOf('/'); if (i >= 0) img_src = url.substring(0, i) + url.substring(i).replace(/^\/\d+px-/, '/' + width + 'px-'); } else if (url) { img_src = url; } if (!img_src) { failure('Cannot load image from url ' + url); return; } var img_loader = LAPI.make( 'img', { src: img_src }, { position: 'absolute', top: '0px', left: '0px', display: 'none' }); if (width) img_loader.width = String(width); if (height) img_loader.height = String(height); LAPI.Evt.attach(img_loader, 'load', function () { success(img_loader); }); document.body.appendChild(img_loader); // Now the browser goes loading the image } else { // No url to work with. Use parseWikitext to have a thumb generated an to get its URL. LAPI.Ajax.parseWikitext( '[[' + title + (width ? '|' + width + 'px' : '') + ']]', function (html/* , failureFunc*/) { var dummy = LAPI.make( 'div', null, { position: 'absolute', top: '0px', left: '0px', display: 'none' }); document.body.appendChild(dummy); // Now start loading the image dummy.innerHTML = html; var imgs = dummy.getElementsByTagName('img'); LAPI.Evt.attach( imgs[0], 'load', function () { success(imgs[0]); LAPI.DOM.removeNode(dummy); }); }, function (request/* , json_result*/) { failure('Image loading failed: ' + request.status + ' ' + request.statusText); }, false // Not as preview , null // user language: don't care , null // on page: don't care , 3600 // Cache for an hour ); } } }; // end LAPI.DOM LAPI.DOM.DocumentFacade = function () { this.initialize.apply(this, arguments); }; LAPI.DOM.DocumentFacade.prototype = { initialize: function (text) { // It's not a real document, but it will behave like one for our purposes. this.documentElement = LAPI.make('div', null, { display: 'none', position: 'absolute' }); this.body = LAPI.make('div', null, { position: 'relative' }); this.documentElement.appendChild(this.body); document.body.appendChild(this.documentElement); this.body.innerHTML = text; // Find all forms var forms = document.getElementsByTagName('form'), self = this; this.forms = Array.select(forms, function (f) { return LAPI.DOM.isParentOf(self.body, f); }); // Konqueror 4.2.3/4.2.4 clears form.elements when the containing div is removed from the // parent document?! if (!LAPI.Browser.is_khtml) { LAPI.DOM.removeNode(this.documentElement); } else { this.dispose = function () { LAPI.DOM.removeNode(this.documentElement); }; // Since we must leave the stuff *in* the original document on Konqueror, we'll also need a // dispose routine... what an ugly hack. } this.allIDs = {}; this.isFake = true; }, createElement: function (tag) { return document.createElement(tag); }, createDocumentFragment: function () { return document.createDocumentFragment(); }, createTextNode: function (text) { return document.createTextNode(text); }, createComment: function (text) { return document.createComment(text); }, createCDATASection: function (text) { return document.createCDATASection(text); }, createAttribute: function (name) { return document.createAttribute(name); }, createEntityReference: function (name) { return document.createEntityReference(name); }, createProcessingInstruction: function (target, data) { return document.createProcessingInstruction(target, data); }, getElementsByTagName: function (tag) { // Grossly inefficient, but deprecated anyway var res = []; function traverse(node, tag) { if (node.nodeName.toLowerCase() === tag) res[res.length] = node; var curr = node.firstChild; while (curr) { traverse(curr, tag); curr = curr.nextSibling; } } traverse(this.body, tag.toLowerCase()); return res; }, getElementById: function (id) { function traverse(elem, id) { if (elem.id === id) return elem; var res = null, curr = elem.firstChild; while (curr && !res) { res = traverse(curr, id); curr = curr.nextSibling; } return res; } if (!this.allIDs[id]) this.allIDs[id] = traverse(this.body, id); return this.allIDs[id]; } // ...NS operations omitted }; // end DocumentFacade if (document.importNode) { LAPI.DOM.DocumentFacade.prototype.importNode = function (node, deep) { document.importNode(node, deep); }; } } // end if (guard) if (!LAPI.WP) { LAPI.WP = { getContentDiv: function (doc) { // Monobook, modern, classic skins return LAPI.$(['bodyContent', 'mw_contentholder', 'article'], doc); }, fullImageSizeFromPage: function (doc) { // Get the full img size. This is screenscraping :-( but there are times where you don't // want to get this info from the server using an Ajax call. // Note: we get the size from the file history table because the text just below the image // is all scrambled on RTL wikis. For instance, on ar-WP, it is // "\u200f (1,806 × 1,341 بكسل، حجم الملف: 996 كيلوبايت، نوع الملف: image/jpeg) and with uselang=en, // it is at ar-WP "\u200f (1,806 × 1,341 pixels, file size: 996 KB, MIME type: image/jpeg)" // However, in the file history table, it looks good no matter the language and writing // direction. // Update: this fails on e.g. ar-WP because someone had the great idea to use localized // numerals, but the digit transform table is empty! var result = { width: 0, height: 0 }, file_hist = LAPI.$('mw-imagepage-section-filehistory', doc); if (!file_hist) return result; try { var $file_curr = $ ? $(file_hist).find('td.filehistory-selected') : document.getElementsByClassName(file_hist, 'td', 'filehistory-selected'); // Did they change the column order here? It once was nextSibling.nextSibling... but somehow // the thumbnails seem to be gone... Right: // http://svn.wikimedia.org/viewvc/mediawiki/trunk/phase3/includes/ImagePage.php?r1=52385&r2=53130 file_hist = LAPI.DOM.getInnerText($file_curr[0].nextSibling); if (!file_hist.contains('×')) { file_hist = LAPI.DOM.getInnerText($file_curr[0].nextSibling.nextSibling); if (!file_hist.contains('×')) file_hist = null; } } catch (ex) { return result; } // Now we have "number×number" followed by something arbitrary if (file_hist) { file_hist = file_hist.split('×', 2); result.width = parseInt(file_hist.shift().replace(/[^0-9]/g, ''), 10); // Height is a bit more difficult because e.g. uselang=eo uses a space as the thousands // separator. Hence we have to extract this more carefully file_hist = file_hist.pop(); // Everything after the "×" // Remove any white space embedded between digits file_hist = file_hist.replace(/(\d)\s*(\d)/g, '$1$2'); file_hist = file_hist.split(' ', 2).shift().replace(/[^0-9]/g, ''); result.height = parseInt(file_hist, 10); if (isNaN(result.width) || isNaN(result.height)) { result = { width: 0, height: 0 }; } } return result; }, getPreviewImage: function (title, doc) { var file_div = LAPI.$('file', doc); if (!file_div) return null; // Catch page without file... var imgs = file_div.getElementsByTagName('img'); title = title || mw.config.get('wgTitle'); for (var i = 0; i < imgs.length; i++) { var src = imgs[i].getAttribute('src', 2); if (src && src.search(/^data/)) { src = decodeURIComponent(src).replace('%26', '&'); if (!src.search(new RegExp('^' + LAPI_file_store + '.*/' + title.replace(/ /g, '_').escapeRE() + '(/.*)?$'))) return imgs[i]; } } return null; }, pageFromLink: function (lk) { if (!lk) return null; var href = lk.getAttribute('href', 2); if (!href) return null; // This is a bit tricky to get right, because 'wgScript' can be a substring prefix of // article path, or vice versa. var script = mw.config.get('wgScript') + '?'; if (href.startsWith(script) || href.startsWith(mw.config.get('wgServer') + script) || mw.config.get('wgServer').startsWith('//') && href.startsWith(document.location.protocol + mw.config.get('wgServer') + script)) { // href="/w/index.php?title=..." return href.getParamValue('title'); } // Now try article path: href="/wiki/..." var prefix = mw.config.get('wgArticlePath').replace('$1', ''); if (!href.startsWith(prefix)) prefix = mw.config.get('wgServer') + prefix; // Fully expanded URL? if (!href.startsWith(prefix) && prefix.startsWith('//')) prefix = document.location.protocol + prefix; // Protocol-relative 'wgServer'? if (href.startsWith(prefix)) return decodeURIComponent(href.substring(prefix.length)); // Do we have variants? var variants = mw.config.get('wgVariantArticlePath'); if (variants && variants.length > 0) { var re = new RegExp(variants.escapeRE().replace('\\$2', '[^\\/]*').replace('\\$1', '(.*)')), m = re.exec(href); if (m && m.length > 1) return decodeURIComponent(m[m.length - 1]); } // Finally alternative action paths var actions = mw.config.get('wgActionPaths'); if (actions) { for (var i = 0; i < actions.length; i++) { var p = actions[i]; if (p && p.length > 0) { p = p.replace('$1', ''); if (!href.startsWith(p)) p = mw.config.get('wgServer') + p; if (!href.startsWith(p) && p.startsWith('//')) p = document.location.protocol + p; if (href.startsWith(p)) return decodeURIComponent(href.substring(p.length)); } } } return null; }, revisionFromHtml: function (htmlOfPage) { var revision_id = null; if (window.RLCONF) // MW 1.32+ revision_id = htmlOfPage.match(/RLCONF=\{.*"wgCurRevisionId"\s*:\s*(\d+),/); else if (window.mediaWiki) // MW 1.17+ revision_id = htmlOfPage.match(/(?:mediaWiki|mw).config.set\(\{.*"wgCurRevisionId"\s*:\s*(\d+),/); else // MW < 1.17 revision_id = htmlOfPage.match(/wgCurRevisionId\s*=\s*(\d+)[;,]/); if (revision_id) revision_id = parseInt(revision_id[1], 10); return revision_id; } }; // end LAPI.WP } // end if (guard) if (!LAPI.Ajax.doAction) { importScript('MediaWiki:AjaxSubmit.js'); // Legacy code: ajaxSubmit LAPI.Ajax.getXML = function (request, failureFunc) { var doc = null; if (request.responseXML && request.responseXML.documentElement) { doc = request.responseXML; } else { try { doc = LAPI.DOM.parse(request.responseText, 'text/xml'); } catch (ex) { if (typeof failureFunc === 'function') failureFunc(request, ex); doc = null; } } if (doc) { try { doc = LAPI.DOM.isValid(doc); } catch (ex) { if (typeof failureFunc === 'function') failureFunc(request, ex); doc = null; } } return doc; }; LAPI.Ajax.getHTML = function (request, failureFunc, sanity_check) { // Konqueror sometimes has severe problems with responseXML. It does set it, but getElementById // may fail to find elements known to exist. var doc = null; // Always use our own parser instead of responseXML; that doesn't work right with HTML5. (It did work with XHTML, though.) // if ( request.responseXML && request.responseXML.documentElement // && request.responseXML.documentElement.tagName === 'HTML' // && (!sanity_check || request.responseXML.getElementById (sanity_check) !== null) // ) // { // doc = request.responseXML; // } else { try { doc = LAPI.DOM.parseHTML(request.responseText, sanity_check); if (!doc) throw new Error('#Could not understand request result'); } catch (ex) { if (typeof failureFunc === 'function') failureFunc(request, ex); doc = null; } // } if (doc) { try { doc = LAPI.DOM.isValid(doc); } catch (ex) { if (typeof failureFunc === 'function') failureFunc(request, ex); doc = null; } } if (doc === null) return doc; // We've gotten XML. There is a subtle difference between XML and (X)HTML concerning leading newlines in textareas: // XML is required to pass through any whitespace (http://www.w3.org/TR/2004/REC-xml-20040204/#sec-white-space), whereas // HTML may or must not (e.g. http://www.w3.org/TR/html4/appendix/notes.html#h-B.3.1, though it is unclear whether that // really applies to the content of a textarea, but the draft HTML 5 spec explicitly says that the first newline in a // ', testString = '\n' + '\n' + 'Test\n', testDoc = LAPI.DOM.parseHTML(testString, 'test'), testVal = String(testDoc.getElementById('test').value); if (testDoc.dispose) testDoc.dispose(); var testDiv = LAPI.make('div', null, { display: 'none' }); document.body.appendChild(testDiv); testDiv.innerHTML = testTA; if (testDiv.firstChild.value !== testVal) { LAPI.Ajax.getHTML.extraNewlineRE = /^\r?\n/; if (testDiv.firstChild.value !== testVal.replace(LAPI.Ajax.getHTML.extraNewlineRE, '')) { // Huh? Not the expected difference: go back to "don't know" mode LAPI.Ajax.getHTML.extraNewlineRE = null; } } LAPI.DOM.removeNode(testDiv); } catch (any) { LAPI.Ajax.getHTML.extraNewlineRE = null; } } if (!doc.isFake && LAPI.Ajax.getHTML.extraNewlineRE !== null) { // If have a "fake" doc, then we did parse through .innerHTML anyway. No need to fix anything. // (Hm. Maybe we should just always use a fake doc?) var tas = doc.getElementsByTagName('textarea'); for (var i = 0, l = tas.length; i < l; i++) tas[i].value = tas[i].value.replace(LAPI.Ajax.getHTML.extraNewlineRE, ''); } return doc; }; LAPI.Ajax.get = function (uri, params, success, failure, config) { var original_failure = failure; if (!failure || typeof failure !== 'function') failure = function () {}; if (!success || typeof success !== 'function') throw new Error('No success function supplied for LAPI.Ajax.get ' + uri + ' with arguments ' + params.toString()); var request = LAPI.Ajax.getRequest(); if (!request) { failure(request); return; } var args = '', question_mark = uri.indexOf('?'); if (question_mark) { args = uri.substring(question_mark + 1); uri = uri.substring(0, question_mark); } if (params !== null) { if (typeof params === 'string' && params.length > 0) { args += (args.length > 0 ? '&' : '') + ((params[0] === '&' || params[0] === '?') ? params.substring(1) : params); // Must already be encoded! } else { for (var param in params) { args += (args.length > 0 ? '&' : '') + param; if (params[param] !== null) args += '=' + encodeURIComponent(params[param]); } } } var method; if (uri.startsWith('//')) uri = document.location.protocol + uri; // Avoid protocol-relative URIs (IE7 bug) if (uri.length + args.length + 1 < (LAPI.Browser.is_ie ? 2040 : 4080)) { // Both browsers and web servers may have limits on URL length. IE has a limit of 2083 characters // (2048 in the path part), and the WMF servers seem to impose a limit of 4kB. method = 'GET'; uri += '?' + args; args = null; } else { method = 'POST'; // We'll lose caching, but at least we can make the request. } request.open(method, uri, true); request.setRequestHeader('Pragma', 'cache=yes'); request.setRequestHeader( 'Cache-Control', 'no-transform' + (params && params.maxage ? ', max-age=' + params.maxage : '') + (params && params.smaxage ? ', s-maxage=' + params.smaxage : '')); if (config) { for (var conf in config) { if (conf === 'overrideMimeType') { if (config[conf] && config[conf].length > 0 && request.overrideMimeType) request.overrideMimeType(config[conf]); } else { request.setRequestHeader(conf, config[conf]); } } } if (args) request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); request.onreadystatechange = function () { if (request.readyState !== 4) return; // Wait until the request has completed. try { if (request.status !== 200) throw new Error('#Request to server failed. Status: ' + request.status + ' ' + request.statusText + ' URI: ' + uri); if (!request.responseText) throw new Error('#Empty response from server for request ' + uri); } catch (ex) { failure(request, ex); return; } success(request, original_failure); }; request.send(args); }; LAPI.Ajax.getPage = function (page, action, params, success, failure) { var uri = mw.config.get('wgServer') + mw.config.get('wgScript') + '?title=' + encodeURIComponent(page) + (action ? '&action=' + action : ''); LAPI.Ajax.get(uri, params, success, failure, { overrideMimeType: 'application/xml' }); }; // modify is supposed to save the changes at the end, e.g. using LAPI.Ajax.submit. // modify is called with three parameters: the document, possibly the form, and the optional // failure function. The failure function is called with the request as the first parameter, // and possibly an exception as the second parameter. LAPI.Ajax.doAction = function (page, action, form, modify, failure) { if (!page || !action || !modify || typeof modify !== 'function') throw new Error('Parameter inconsistency in LAPI.Ajax.doAction.'); var original_failure = failure; if (!failure || typeof failure !== 'function') failure = function () {}; LAPI.Ajax.getPage( page, action, null, // No additional parameters function (request, failureFunc) { var doc = null, the_form = null, revision_id = null; try { // Convert responseText into DOM tree. doc = LAPI.Ajax.getHTML(request, failureFunc, form); if (!doc) return; var err_msg = LAPI.$('permissions-errors', doc); if (err_msg) throw new Error('#' + LAPI.DOM.getInnerText(err_msg)); if (form) { the_form = LAPI.$(form, doc); if (!the_form) throw new Error('#Server reply does not contain mandatory form.'); the_form.wpWatchthis.checked = !!document.getElementById('ca-unwatch'); } revision_id = LAPI.WP.revisionFromHtml(request.responseText); } catch (ex) { failureFunc(request, ex); return; } modify(doc, the_form, original_failure, revision_id); }, failure); }; // end LAPI.Ajax.doAction LAPI.Ajax.submit = function (form, after_submit) { try { ajaxSubmit(form, null, after_submit, true); // Legacy code from MediaWiki:AjaxSubmit } catch (ex) { after_submit(null, ex); } }; // end LAPI.Ajax.submit LAPI.Ajax.editPage = function (page, modify, failure) { LAPI.Ajax.doAction(page, 'edit', 'editform', modify, failure); }; // end LAPI.Ajax.editPage LAPI.Ajax.checkEdit = function (request) { if (!request) return true; // Check for previews (session token lost?) or edit forms (edit conflict). try { var doc = LAPI.Ajax.getHTML(request, function () { throw new Error('Cannot check HTML'); }); if (!doc) return false; return LAPI.$(['wikiPreview', 'editform'], doc) === null; } catch (anything) { return false; } }; // end LAPI.Ajax.checkEdit LAPI.Ajax.submitEdit = function (form, success, failure) { if (!success || typeof success !== 'function') success = function () {}; if (!failure || typeof failure !== 'function') failure = function () {}; LAPI.Ajax.submit( form, function (request, ex) { if (ex) { failure(request, ex); } else { var successful = false; try { successful = request && request.status === 200 && LAPI.Ajax.checkEdit(request); } catch (some_error) { failure(request, some_error); return; } if (successful) success(request); else failure(request); } }); }; // end LAPI.Ajax.submitEdit LAPI.Ajax.apiGet = function (action, params, success, failure) { var original_failure = failure; if (!failure || typeof failure !== 'function') failure = function () {}; if (!success || typeof success !== 'function') throw new Error('No success function supplied for LAPI.Ajax.apiGet ' + action + ' with arguments ' + params.toString()); var is_json = false; if (params !== null) { if (typeof params === 'string') { if (!/format=[^&]+/.test(params)) params += '&format=json'; is_json = /format=json(&|$)/.test(params); // Exclude jsonfm, which actually serves XHTML } else { if (typeof params.format !== 'string' || !params.format.length) params.format = 'json'; is_json = params.format === 'json'; } } var uri = mw.config.get('wgServer') + mw.config.get('wgScriptPath') + '/api.php' + (action ? '?action=' + action : ''); LAPI.Ajax.get( uri, params, function (request, failureFunc) { if (is_json && request.responseText.trimLeft()[0] !== '{') { failureFunc(request); } else { var json; try { json = (is_json ? eval('(' + request.responseText.trimLeft() + ')') : null) } catch (e) { json = null; } success( request, json, original_failure); } }, failure); }; // end LAPI.Ajax.apiGet LAPI.Ajax.parseWikitext = function (wikitext, success, failure, as_preview, user_language, on_page, cache) { if (!failure || typeof failure !== 'function') failure = function () {}; if (!success || typeof success !== 'function') throw new Error('No success function supplied for parseWikitext'); if (!wikitext && !on_page) throw new Error('No wikitext or page supplied for parseWikitext'); var params = null; if (!wikitext) { params = { pst: null, page: on_page }; } else { params = { pst: null, // Do the pre-save-transform: Pipe magic, tilde expansion, etc. text: (as_preview ? '

\{\{MediaWiki:Previewnote/' + (user_language || mw.config.get('wgUserLanguage')) + '\}\}

\n' : '') + wikitext + (as_preview ? '

' : ''), title: on_page || mw.config.get('wgPageName') || 'API' }; } params.prop = 'text'; params.uselang = user_language || mw.config.get('wgUserLanguage'); // see bugzilla 22764 if (cache && /^\d+$/.test(cache = cache.toString())) { params.maxage = cache; params.smaxage = cache; } LAPI.Ajax.apiGet( 'parse', params, function (req, json_result, failureFunc) { // Success. if (!json_result || !json_result.parse || !json_result.parse.text) { failureFunc(req, json_result); return; } success(json_result.parse.text['*'], failureFunc); }, failure); }; // end LAPI.Ajax.parseWikitext // Throbber backward-compatibility LAPI.Ajax.injectSpinner = function (/* elementBefore, id*/) {}; // No-op, replaced as appropriate below. LAPI.Ajax.removeSpinner = function (/* id*/) {}; // No-op, replaced as appropriate below. if (!window.jQuery || !window.mediaWiki || !mw.loader) { // Assume old-stlye if (window.injectSpinner) LAPI.Ajax.injectSpinner = window.injectSpinner; if (window.removeSpinner) LAPI.Ajax.removeSpinner = window.removeSpinner; } else { mw.loader.using('jquery.spinner', function () { LAPI.Ajax.injectSpinner = function (elementBefore, id) { $(elementBefore).injectSpinner(id); }; LAPI.Ajax.removeSpinner = function (id) { $.removeSpinner(id); }; }); } } // end if (guard) if (!LAPI.Pos) { LAPI.Pos = { // Returns the global coordinates of the mouse pointer within the document. mousePosition: function (evt) { if (!evt || (!evt.pageX && !evt.clientX)) // No way to calculate a mouse pointer position return null; if (evt.pageX.evt) { return { x: evt.pageX, y: evt.pageY }; } var offset = LAPI.Pos.scrollOffset(), mouse_delta = LAPI.Pos.mouse_offset(), coor_x = evt.clientX + offset.x - mouse_delta.x, coor_y = evt.clientY + offset.y - mouse_delta.y; return { x: coor_x, y: coor_y }; }, // Operations on document level: // Returns the scroll offset of the whole document (in other words, the coordinates // of the top left corner of the viewport). scrollOffset: function () { return { x: LAPI.Pos.getScroll('Left'), y: LAPI.Pos.getScroll('Top') }; }, getScroll: function (what) { var s = 'scroll' + what; return (document.documentElement ? document.documentElement[s] : 0) || document.body[s] || 0; }, // Returns the size of the viewport (result.x is the width, result.y the height). viewport: function () { return { x: LAPI.Pos.getViewport('Width'), y: LAPI.Pos.getViewport('Height') }; }, getViewport: function (what) { if (LAPI.Browser.is_opera_95 && what === 'Height' || LAPI.Browser.is_safari && !document.evaluate) return window['inner' + what]; var s = 'client' + what; if (LAPI.Browser.is_opera) return document.body[s]; return (document.documentElement ? document.documentElement[s] : 0) || document.body[s] || 0; }, // Operations on DOM nodes position: (function () { // The following is the jQuery.offset implementation. We cannot use jQuery yet in globally // activated scripts (it has strange side effects for Opera 8 users who can't log in anymore, // and it breaks the search box for some users). Note that jQuery does not support Opera 8. // Until the WMF servers serve jQuery by default, this copy from the jQuery 1.3.2 sources is // needed here. If and when we have jQuery available officially, the whole thing here can be // replaced by "var tmp = jQuery (node).offset(); return {x:tmp.left, y:tmp.top};" // Kudos to the jQuery development team. Any errors in this adaptation are my own. (Lupo, // 2009-08-24). var data = null; function jQuery_init() { data = {}; // Capability check from jQuery. var body = document.body, container = document.createElement('div'), html = '

', rules = { position: 'absolute', visibility: 'hidden', top: 0, left: 0, margin: 0, border: 0, width: '1px', height: '1px' }; Object.merge(rules, container.style); container.innerHTML = html; body.insertBefore(container, body.firstChild); var innerDiv = container.firstChild, checkDiv = innerDiv.firstChild, td = innerDiv.nextSibling.firstChild.firstChild; data.doesNotAddBorder = (checkDiv.offsetTop !== 5); data.doesAddBorderForTableAndCells = (td.offsetTop === 5); innerDiv.style.overflow = 'hidden'; innerDiv.style.position = 'relative'; data.subtractsBorderForOverflowNotVisible = (checkDiv.offsetTop === -5); var bodyMarginTop = body.style.marginTop; body.style.marginTop = '1px'; data.doesNotIncludeMarginInBodyOffset = (body.offsetTop === 0); body.style.marginTop = bodyMarginTop; body.removeChild(container); } function jQuery_offset(node) { if (node === node.ownerDocument.body) return jQuery_bodyOffset(node); if (node.getBoundingClientRect) { var box = node.getBoundingClientRect(), scroll = LAPI.Pos.scrollOffset(); return { x: (box.left + scroll.x), y: (box.top + scroll.y) }; } if (!data) jQuery_init(); var elem = node, offsetParent = elem.offsetParent, // prevOffsetParent = elem, doc = elem.ownerDocument, prevComputedStyle = doc.defaultView.getComputedStyle(elem, null), computedStyle, top = elem.offsetTop, left = elem.offsetLeft; while ((elem = elem.parentNode) && elem !== doc.body && elem !== doc.documentElement) { computedStyle = doc.defaultView.getComputedStyle(elem, null); top -= elem.scrollTop; left -= elem.scrollLeft; if (elem === offsetParent) { top += elem.offsetTop; left += elem.offsetLeft; if (data.doesNotAddBorder && !(data.doesAddBorderForTableAndCells && /^t(able|d|h)$/i.test(elem.tagName))) { top += parseInt(computedStyle.borderTopWidth, 10) || 0; left += parseInt(computedStyle.borderLeftWidth, 10) || 0; } // prevOffsetParent = offsetParent; offsetParent = elem.offsetParent; } if (data.subtractsBorderForOverflowNotVisible && computedStyle.overflow !== 'visible') { top += parseInt(computedStyle.borderTopWidth, 10) || 0; left += parseInt(computedStyle.borderLeftWidth, 10) || 0; } prevComputedStyle = computedStyle; } if (prevComputedStyle.position === 'relative' || prevComputedStyle.position === 'static') { top += doc.body.offsetTop; left += doc.body.offsetLeft; } if (prevComputedStyle.position === 'fixed') { top += Math.max(doc.documentElement.scrollTop, doc.body.scrollTop); left += Math.max(doc.documentElement.scrollLeft, doc.body.scrollLeft); } return { x: left, y: top }; } function jQuery_bodyOffset(body) { if (!data) jQuery_init(); var top = body.offsetTop, left = body.offsetLeft; if (data.doesNotIncludeMarginInBodyOffset) { top += parseInt(LAPI.DOM.currentStyle(body, 'margin-top'), 10) || 0; left += parseInt(LAPI.DOM.currentStyle(body, 'margin-left'), 10) || 0; } return { x: left, y: top }; } return jQuery_offset; }()), isWithin: function (node, x, y) { if (!node || !node.parentNode) return false; var pos = LAPI.Pos.position(node); return (x === null || x > pos.x && x < pos.x + node.offsetWidth) && (y === null || y > pos.y && y < pos.y + node.offsetHeight); }, // Private: // IE has some strange offset... mouse_offset: function () { if (LAPI.Browser.is_ie) { var doc_elem = document.documentElement; if (doc_elem) { if (typeof doc_elem.getBoundingClientRect === 'function') { var tmp = doc_elem.getBoundingClientRect(); return { x: tmp.left, y: tmp.top }; } else { return { x: doc_elem.clientLeft, y: doc_elem.clientTop }; } } } return { x: 0, y: 0 }; } }; // end LAPI.Pos } // end if (guard) if (!LAPI.Evt) { LAPI.Evt = { listenTo: function (object, node, evt, f, capture) { var listener = LAPI.Evt.makeListener(object, f); LAPI.Evt.attach(node, evt, listener, capture); }, attach: function (node, evt, f, capture) { if (node.attachEvent) node.attachEvent('on' + evt, f); else if (node.addEventListener) node.addEventListener(evt, f, capture); else node['on' + evt] = f; }, remove: function (node, evt, f, capture) { if (node.detachEvent) node.detachEvent('on' + evt, f); else if (node.removeEventListener) node.removeEventListener(evt, f, capture); else node['on' + evt] = null; }, makeListener: function (obj, listener) { // Some hacking around to make sure 'this' is set correctly var object = obj, f = listener; return function (evt) { return f.apply(object, [evt || window.event]); }; // Alternative implementation: // var f = listener.bind (obj); // return function (evt) { return f (evt || window.event); }; }, kill: function (evt) { if (typeof evt.preventDefault === 'function') { evt.stopPropagation(); evt.preventDefault(); // Don't follow the link } else if (evt.cancelBubble.evt) { // IE... evt.cancelBubble = true; } return false; // Don't follow the link (IE) } }; // end LAPI.Evt } // end if (guard) if (!LAPI.Edit) { LAPI.Edit = function () { this.initialize.apply(this, arguments); }; LAPI.Edit.SAVE = 1; LAPI.Edit.PREVIEW = 2; LAPI.Edit.REVERT = 4; LAPI.Edit.CANCEL = 8; LAPI.Edit.prototype = { initialize: function (initial_text, columns, rows, labels, handlers) { var my_labels = { box: null, preview: null, save: 'Save', cancel: 'Cancel', nullsave: null, revert: null, post: null }; if (labels) my_labels = Object.merge(labels, my_labels); this.labels = my_labels; this.timestamp = (new Date()).getTime(); this.id = 'simpleedit_' + this.timestamp; this.view = LAPI.make('div', { id: this.id }, { marginRight: '1em' }); // Somehow, the textbox extends beyond the bounding box of the view. Don't know why, but // adding a small margin fixes the layout more or less. this.form = LAPI.make( 'form', { id: this.id + '_form', action: '', onsubmit: (function () {}) }); if (my_labels.box) { var label = LAPI.make('div'); label.appendChild(LAPI.DOM.makeLabel(this.id + '_label', my_labels.box, this.id + '_text')); this.form.appendChild(label); } this.textarea = LAPI.make( 'textarea', { id: this.id + '_text', cols: columns, rows: rows, value: (initial_text ? initial_text.toString() : '') }); LAPI.Evt.attach(this.textarea, 'keyup', LAPI.Evt.makeListener(this, this.text_changed)); // Catch cut/copy/paste through the context menu. Some browsers support oncut, oncopy, // onpaste events for this, but since that's only IE, FF 3, Safari 3, and Chrome, we // cannot rely on this. Instead, we check again as soon as we leave the textarea. Only // minor catch is that on FF 3, the next focus target is determined before the blur event // fires. Since in practice save will always be enabled, this shouldn't be a problem. LAPI.Evt.attach(this.textarea, 'mouseout', LAPI.Evt.makeListener(this, this.text_changed)); LAPI.Evt.attach(this.textarea, 'blur', LAPI.Evt.makeListener(this, this.text_changed)); this.form.appendChild(this.textarea); this.form.appendChild(LAPI.make('br')); this.preview_section = LAPI.make('div', null, { borderBottom: '1px solid #88a', display: 'none' }); this.view.insertBefore(this.preview_section, this.view.firstChild); this.save = LAPI.DOM.makeButton(this.id + '_save', my_labels.save, LAPI.Evt.makeListener(this, this.do_save)); this.form.appendChild(this.save); if (my_labels.preview) { this.preview = LAPI.DOM.makeButton(this.id + '_preview', my_labels.preview, LAPI.Evt.makeListener(this, this.do_preview)); this.form.appendChild(this.preview); } this.cancel = LAPI.DOM.makeButton(this.id + '_cancel', my_labels.cancel, LAPI.Evt.makeListener(this, this.do_cancel)); this.form.appendChild(this.cancel); this.view.appendChild(this.form); if (my_labels.post) { this.post_text = LAPI.DOM.setContent(LAPI.make('div'), my_labels.post); this.view.appendChild(this.post_text); } if (handlers) Object.merge(handlers, this); if (typeof this.ongettext !== 'function') { this.ongettext = function (text) { return text; }; } // Default: no modifications this.current_mask = LAPI.Edit.SAVE + LAPI.Edit.PREVIEW + LAPI.Edit.REVERT + LAPI.Edit.CANCEL; if ((!initial_text || !initial_text.trim().length) && this.preview) this.preview.disabled = true; if (my_labels.revert) { this.revert = LAPI.DOM.makeButton(this.id + '_revert', my_labels.revert, LAPI.Evt.makeListener(this, this.do_revert)); this.form.insertBefore(this.revert, this.cancel); } this.original_text = ''; }, getView: function () { return this.view; }, getText: function () { return this.ongettext(this.textarea.value); }, setText: function (text) { this.textarea.value = text; this.original_text = text; this.text_changed(); }, changeText: function (text) { this.textarea.value = text; this.text_changed(); }, hidePreview: function () { this.preview_section.style.display = 'none'; if (this.onpreview) this.onpreview(this); }, showPreview: function () { this.preview_section.style.display = ''; if (this.onpreview) this.onpreview(this); }, setPreview: function (html) { if (html.nodeName) { LAPI.DOM.removeChildren(this.preview_section); this.preview_section.appendChild(html); } else { this.preview_section.innerHTML = html; } }, busy: function (show) { if (show) LAPI.Ajax.injectSpinner(this.cancel, this.id + '_spinner'); else LAPI.Ajax.removeSpinner(this.id + '_spinner'); }, do_save: function (/* evt*/) { if (this.onsave) this.onsave(this); return true; }, do_revert: function (/* evt*/) { this.changeText(this.original_text); return true; }, do_cancel: function (/* evt*/) { if (this.oncancel) this.oncancel(this); return true; }, do_preview: function (/* evt*/) { var self = this; this.busy(true); LAPI.Ajax.parseWikitext( this.getText(), function (text/* , failureFunc*/) { self.busy(false); self.setPreview(text); self.showPreview(); }, function (/* req, json_result*/) { // Error. TODO: user feedback? self.busy(false); }, true, mw.config.get('wgUserLanguage') || null, mw.config.get('wgPageName') || null); return true; }, enable: function (bit_set) { var call_text_changed = false; this.current_mask = bit_set; this.save.disabled = ((bit_set & LAPI.Edit.SAVE) === 0); this.cancel.disabled = ((bit_set & LAPI.Edit.CANCEL) === 0); if (this.preview) { if ((bit_set & LAPI.Edit.PREVIEW) === 0) this.preview.disabled = true; else call_text_changed = true; } if (this.revert) { if ((bit_set & LAPI.Edit.REVERT) === 0) this.revert.disabled = true; else call_text_changed = true; } if (call_text_changed) this.text_changed(); }, text_changed: function (/* evt*/) { var text = this.textarea.value; text = text.trim(); var length = text.length; if (this.preview && (this.current_mask & LAPI.Edit.PREVIEW) !== 0) { // Preview is basically enabled this.preview.disabled = (length <= 0); } if (this.labels.nullsave) this.save.value = (length > 0) ? this.labels.save : this.labels.nullsave; if (this.revert) { this.revert.disabled = (text === this.original_text || this.textarea.value === this.original_text); } return true; } }; // end LAPI.Edit } // end if (guard) //