MediaWiki:LAPI.js
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/*
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)
*/
// <nowiki>
// 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, '<' )
.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*(<xml[^>]*>\s*)?<!doctype\s+html/i ) >= 0 || str.search( /^\s*<html/i ) >= 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 = /<body.*?>/.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( '</body>' );
if ( body_end < 0 ) {
return null;
}
var content = str.substring( body_tag, body_end ); // Anything in between
content = content.replace( /<script(.|\s)*?\/script>/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 ) {
// Catch page without file...
return null;
}
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 ) ) {
// Fully expanded URL?
prefix = mw.config.get( 'wgServer') + prefix;
}
if ( !href.startsWith( prefix ) && prefix.startsWith( '//' ) ) {
// Protocol-relative 'wgServer'?
prefix = document.location.protocol + prefix;
}
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
// <textarea> is swallowed in HTML:
// http://www.whatwg.org/specs/web-apps/current-work/multipage/syntax.html#element-restrictions).
// Because of the latter MW1.18+ adds a newline after the <textarea> start tag if the value starts with a newline. That
// solves bug 12130 (leading newlines swallowed), but since XML passes us this extra newline, we might end up adding a
// leading newline upon each edit.
// Let's try to make sure that all textarea's values are as they should be in HTML.
// Note: since the above change to always use our own parser, which always returns a faked HTML document, this should be
// unnecessary since doc.isFake should always be true.
if ( !LAPI.Ajax.getHTML.extraNewlineRE ) {
// Feature detection. Compare value after parsing with value after .innerHTML.
LAPI.Ajax.getHTML.extraNewlineRE = null; // Don't know; hence do nothing
try {
var testTA = '<textarea id="test">\nTest</textarea>',
testString = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">\n' +
'<html xmlns="http://www.w3.org/1999/xhtml" lang="en" dir="ltr">\n' +
'<head><title>Test</title></head><body><form>' + testTA +
'</form></body>\n</html>',
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( '//' ) ) {
// Avoid protocol-relative URIs (IE7 bug)
uri = document.location.protocol + uri;
}
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 {
// We'll lose caching, but at least we can make the request.
method = 'POST';
}
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.$( [ 'wikiPreview', 'editform' ], doc ) === null;
} catch ( anything ) {
return false;
}
}; // end LAPI.Ajax.checkEdit
LAPI.Ajax.submitEdit = function ( form, success, failure ) {
if ( !success || typeof success !== 'function' ) {
success = function () {};
}
if ( !failure || typeof failure !== 'function' ) {
failure = function () {};
}
LAPI.Ajax.submit(
form,
function ( request, ex ) {
if ( ex ) {
failure( request, ex );
} else {
var successful = false;
try {
successful = request && request.status === 200 && LAPI.Ajax.checkEdit( request );
} catch ( some_error ) {
failure( request, some_error );
return;
}
if ( successful ) {
success( request );
} else {
failure( request );
}
}
} );
}; // end LAPI.Ajax.submitEdit
LAPI.Ajax.apiGet = function ( action, params, success, failure ) {
var original_failure = failure;
if ( !failure || typeof failure !== 'function' ) {
failure = function () {};
}
if ( !success || typeof success !== 'function' ) {
throw new Error( 'No success function supplied for LAPI.Ajax.apiGet ' + action + ' with arguments ' + params.toString() );
}
var is_json = false;
if ( params !== null ) {
if ( typeof params === 'string' ) {
if ( !/format=[^&]+/.test( params ) ) {
params += '&format=json';
}
// Exclude jsonfm, which actually serves XHTML
is_json = /format=json(&|$)/.test( params );
} 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 ? '<div style="border:1px solid red; padding:0.5em;"><div class="previewnote">\{\{MediaWiki:Previewnote/' +
( user_language || mw.config.get( 'wgUserLanguage' ) ) + '\}\}</div><div>\n' : '' ) + wikitext +
( as_preview ? '</div><div style="clear:both;"></div></div>' : ''),
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-style
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 =
'<div style="position:absolute;top:0;left:0;margin:0;border:5px solid #000;' +
'padding:0;width:1px;height:1px;"><div></div></div><table style="position:absolute;' +
'top:0;left:0;margin:0;border:5px solid #000;padding:0;width:1px;height:1px;" ' +
'cellpadding="0" cellspacing="0"><tr><td></td></tr></table>',
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)
// </nowiki>