/*
- * JavaScript backwards-compatibility and support
+ * JavaScript backwards-compatibility alternatives and convenience functions
*/
-// Implementation of string trimming functionality introduced natively in JavaScript 1.8.1
-if ( typeof String.prototype.trim === 'undefined' ) {
- // Add removing trailing and leading whitespace functionality cross-browser
- // See also: http://blog.stevenlevithan.com/archives/faster-trim-javascript
- String.prototype.trim = function() {
- return this.replace( /^\s+|\s+$/g, '' );
- };
-}
-if ( typeof String.prototype.trimLeft === 'undefined' ) {
- String.prototype.trimLeft = function() {
- return this.replace( /^\s\s*/, "" );
- };
-}
-if ( typeof String.prototype.trimRight === 'undefined' ) {
- String.prototype.trimRight = function() {
- return this.replace(/\s\s*$/, "");
- };
-}
+jQuery.extend({
+ trimLeft : function( str ) {
+ return str == null ? '' : str.toString().replace( /^\s+/, '' );
+ },
+ trimRight : function( str ) {
+ return str == null ?
+ '' : str.toString().replace( /\s+$/, '' );
+ },
+ ucFirst : function( str ) {
+ return str.substr( 0, 1 ).toUpperCase() + str.substr( 1, str.length );
+ },
+ escapeRE : function( str ) {
+ return str.replace ( /([\\{}()|.?*+^$\[\]])/g, "\\$1" );
+ },
+ compareArray : function( arrThis, arrAgainst ) {
+ if ( arrThis.length != arrAgainst.length ) {
+ return false;
+ }
+ for ( var i = 0; i < arrThis.length; i++ ) {
+ if ( arrThis[i] instanceof Array ) {
+ if ( !$.compareArray( arrThis[i], arrAgainst[i] ) ) {
+ return false;
+ }
+ } else if ( arrThis[i] !== arrAgainst[i] ) {
+ return false;
+ }
+ }
+ return true;
+ }
+});
/*
* Core MediaWiki JavaScript Library
/* Prototypes */
/**
- * An object which allows single and multiple get/set/exists functionality on a list of key / value pairs.
+ * An object which allows single and multiple get/set/exists functionality
+ * on a list of key / value pairs.
*
- * @param {boolean} global Whether to get/set/exists values on the window object or a private object
+ * @param {boolean} global Whether to get/set/exists values on the window
+ * object or a private object
*/
function Map( global ) {
this.values = ( global === true ) ? window : {};
Message.prototype.toString = function() {
if ( !this.map.exists( this.key ) ) {
// Return <key> if key does not exist
- return '<' + key + '>';
+ return '<' + this.key + '>';
}
var text = this.map.get( this.key );
var parameters = this.parameters;
/* Public Members */
/*
- * Dummy function which in debug mode can be replaced with a function that does something clever
+ * Dummy function which in debug mode can be replaced with a function that
+ * does something clever
*/
this.log = function() { };
this.message = function( key, parameters ) {
// Support variadic arguments
if ( typeof parameters !== 'undefined' ) {
- parameters = $.makeArray( arguments);
+ parameters = $.makeArray( arguments );
parameters.shift();
} else {
parameters = [];
* replacement
*/
this.msg = function( key, parameters ) {
- return mediaWiki.message.apply( mediaWiki.message, arguments );
+ return mediaWiki.message.apply( mediaWiki.message, arguments ).toString();
};
/**
/**
* Mapping of registered modules
*
- * The jquery module is pre-registered, because it must have already been provided for this object to have
- * been built, and in debug mode jquery would have been provided through a unique loader request, making it
- * impossible to hold back registration of jquery until after mediawiki.
+ * The jquery module is pre-registered, because it must have already
+ * been provided for this object to have been built, and in debug mode
+ * jquery would have been provided through a unique loader request,
+ * making it impossible to hold back registration of jquery until after
+ * mediawiki.
*
* Format:
* {
if ( typeof registry[module] === 'undefined' ) {
throw new Error( 'Unknown dependency: ' + module );
}
- // Resolves dynamic loader function and replaces it with it's own results
+ // Resolves dynamic loader function and replaces it with its own results
if ( typeof registry[module].dependencies === 'function' ) {
registry[module].dependencies = registry[module].dependencies();
// Ensures the module's dependencies are always in an array
if ( $.inArray( registry[module].dependencies[n], resolved ) === -1 ) {
if ( $.inArray( registry[module].dependencies[n], unresolved ) !== -1 ) {
throw new Error(
- 'Circular reference detected: ' + module + ' -> ' + registry[module].dependencies[n]
+ 'Circular reference detected: ' + module +
+ ' -> ' + registry[module].dependencies[n]
);
}
recurse( registry[module].dependencies[n], resolved, unresolved );
}
/**
- * Gets a list of modules names that a module dependencies in their proper dependency order
+ * Gets a list of module names that a module depends on in their proper dependency order
*
* @param mixed string module name or array of string module names
* @return list of dependencies
};
/**
- * Narrows a list of module names down to those matching a specific state. Possible states are 'undefined',
- * 'registered', 'loading', 'loaded', or 'ready'
+ * Narrows a list of module names down to those matching a specific
+ * state. Possible states are 'undefined', 'registered', 'loading',
+ * 'loaded', or 'ready'
*
* @param mixed string or array of strings of module states to filter by
- * @param array list of module names to filter (optional, all modules will be used by default)
+ * @param array list of module names to filter (optional, all modules
+ * will be used by default)
* @return array list of filtered module names
*/
function filter( states, modules ) {
// Build a list of modules which are in one of the specified states
for ( var s = 0; s < states.length; s++ ) {
for ( var m = 0; m < modules.length; m++ ) {
- if (
- ( states[s] == 'undefined' && typeof registry[modules[m]] === 'undefined' ) ||
- ( typeof registry[modules[m]] === 'object' && registry[modules[m]].state === states[s] )
- ) {
- list[list.length] = modules[m];
+ if ( typeof registry[modules[m]] === 'undefined' ) {
+ // Module does not exist
+ if ( states[s] == 'undefined' ) {
+ // OK, undefined
+ list[list.length] = modules[m];
+ }
+ } else {
+ // Module exists, check state
+ if ( registry[modules[m]].state === states[s] ) {
+ // OK, correct state
+ list[list.length] = modules[m];
+ }
}
}
}
}
// Add style sheet to document
if ( typeof registry[module].style === 'string' && registry[module].style.length ) {
- $( 'head' ).append( '<style type="text/css">' + registry[module].style + '</style>' );
- } else if ( typeof registry[module].style === 'object' && !( registry[module].style instanceof Array ) ) {
+ $( 'head' )
+ .append( mediaWiki.html.element( 'style',
+ { type: "text/css" },
+ new mediaWiki.html.Cdata( registry[module].style )
+ ) );
+ } else if ( typeof registry[module].style === 'object'
+ && !( registry[module].style instanceof Array ) )
+ {
for ( var media in registry[module].style ) {
- $( 'head' ).append(
- '<style type="text/css" media="' + media + '">' + registry[module].style[media] + '</style>'
- );
+ $( 'head' ).append( mediaWiki.html.element( 'style',
+ { type: 'text/css', media: media },
+ new mediaWiki.html.Cdata( registry[module].style[media] )
+ ) );
}
}
// Add localizations to message system
registry[module].state = 'ready';
// Run jobs who's dependencies have just been met
for ( var j = 0; j < jobs.length; j++ ) {
- if ( compare( filter( 'ready', jobs[j].dependencies ), jobs[j].dependencies ) ) {
+ if ( compare(
+ filter( 'ready', jobs[j].dependencies ),
+ jobs[j].dependencies ) )
+ {
if ( typeof jobs[j].ready === 'function' ) {
jobs[j].ready();
}
// Execute modules who's dependencies have just been met
for ( r in registry ) {
if ( registry[r].state == 'loaded' ) {
- if ( compare( filter( ['ready'], registry[r].dependencies ), registry[r].dependencies ) ) {
+ if ( compare(
+ filter( ['ready'], registry[r].dependencies ),
+ registry[r].dependencies ) )
+ {
execute( r );
}
}
}
/**
- * Adds a dependencies to the queue with optional callbacks to be run when the dependencies are ready or fail
+ * Adds a dependencies to the queue with optional callbacks to be run
+ * when the dependencies are ready or fail
*
* @param mixed string moulde name or array of string module names
* @param function ready callback to execute when all dependencies are ready
dependencies = [dependencies];
if ( dependencies[0] in registry ) {
for ( var n = 0; n < registry[dependencies[0]].dependencies.length; n++ ) {
- dependencies[dependencies.length] = registry[dependencies[0]].dependencies[n];
+ dependencies[dependencies.length] =
+ registry[dependencies[0]].dependencies[n];
}
}
}
// Add ready and error callbacks if they were given
if ( arguments.length > 1 ) {
jobs[jobs.length] = {
- 'dependencies': filter( ['undefined', 'registered', 'loading', 'loaded'], dependencies ),
+ 'dependencies': filter(
+ ['undefined', 'registered', 'loading', 'loaded'],
+ dependencies ),
'ready': ready,
'error': error
};
queue = [];
// After document ready, handle the batch
if ( !suspended && batch.length ) {
- // Always order modules alphabetically to help reduce cache misses for otherwise identical content
+ // Always order modules alphabetically to help reduce cache
+ // misses for otherwise identical content
batch.sort();
// Build a list of request parameters
var base = {
{ 'modules': groups[group].join( '|' ), 'version': formatVersionNumber( version ) }, base
);
}
- // Clear the batch - this MUST happen before we append the script element to the body or it's
- // possible that the script will be locally cached, instantly load, and work the batch again,
- // all before we've cleared it causing each request to include modules which are already loaded
+ // Clear the batch - this MUST happen before we append the
+ // script element to the body or it's possible that the script
+ // will be locally cached, instantly load, and work the batch
+ // again, all before we've cleared it causing each request to
+ // include modules which are already loaded
batch = [];
// Asynchronously append a script tag to the end of the body
function request() {
requests[r] = sortQuery( requests[r] );
// Build out the HTML
var src = mediaWiki.config.get( 'wgLoadScript' ) + '?' + $.param( requests[r] );
- html += '<script type="text/javascript" src="' + src + '"></script>';
+ html += mediaWiki.html.element( 'script',
+ { type: 'text/javascript', src: src }, '' );
}
return html;
}
// Load asynchronously after doumument ready
if ( ready ) {
- setTimeout( function() { $( 'body' ).append( request() ); }, 0 )
+ setTimeout( function() { $( 'body' ).append( request() ); }, 0 )
} else {
document.write( request() );
}
};
/**
- * Registers a module, letting the system know about it and it's dependencies. loader.js files contain calls
- * to this function.
+ * Registers a module, letting the system know about it and its
+ * dependencies. loader.js files contain calls to this function.
*/
this.register = function( module, version, dependencies, group ) {
// Allow multiple registration
// Allow dependencies to be given as a single module name
registry[module].dependencies = [dependencies];
} else if ( typeof dependencies === 'object' || typeof dependencies === 'function' ) {
- // Allow dependencies to be given as an array of module names or a function which returns an array
+ // Allow dependencies to be given as an array of module names
+ // or a function which returns an array
registry[module].dependencies = dependencies;
}
};
/**
- * Implements a module, giving the system a course of action to take upon loading. Results of a request for
- * one or more modules contain calls to this function.
+ * Implements a module, giving the system a course of action to take
+ * upon loading. Results of a request for one or more modules contain
+ * calls to this function.
*/
this.implement = function( module, script, style, localization ) {
- // Automaically register module
+ // Automatically register module
if ( typeof registry[module] === 'undefined' ) {
mediaWiki.loader.register( module );
}
if ( typeof script !== 'function' ) {
throw new Error( 'script must be a function, not a ' + typeof script );
}
- if ( typeof style !== 'undefined' && typeof style !== 'string' && typeof style !== 'object' ) {
+ if ( typeof style !== 'undefined'
+ && typeof style !== 'string'
+ && typeof style !== 'object' )
+ {
throw new Error( 'style must be a string or object, not a ' + typeof style );
}
- if ( typeof localization !== 'undefined' && typeof localization !== 'object' ) {
+ if ( typeof localization !== 'undefined'
+ && typeof localization !== 'object' )
+ {
throw new Error( 'localization must be an object, not a ' + typeof localization );
}
- if ( typeof registry[module] !== 'undefined' && typeof registry[module].script !== 'undefined' ) {
+ if ( typeof registry[module] !== 'undefined'
+ && typeof registry[module].script !== 'undefined' )
+ {
throw new Error( 'module already implemeneted: ' + module );
}
// Mark module as loaded
registry[module].state = 'loaded';
// Attach components
registry[module].script = script;
- if ( typeof style === 'string' || typeof style === 'object' && !( style instanceof Array ) ) {
+ if ( typeof style === 'string'
+ || typeof style === 'object' && !( style instanceof Array ) )
+ {
registry[module].style = style;
}
if ( typeof localization === 'object' ) {
registry[module].messages = localization;
}
// Execute or queue callback
- if ( compare( filter( ['ready'], registry[module].dependencies ), registry[module].dependencies ) ) {
+ if ( compare(
+ filter( ['ready'], registry[module].dependencies ),
+ registry[module].dependencies ) )
+ {
execute( module );
} else {
request( module );
/**
* Executes a function as soon as one or more required modules are ready
*
- * @param mixed string or array of strings of modules names the callback dependencies to be ready before
+ * @param mixed string or array of strings of modules names the callback
+ * dependencies to be ready before
* executing
* @param function callback to execute when all dependencies are ready (optional)
* @param function callback to execute when if dependencies have a errors (optional)
this.using = function( dependencies, ready, error ) {
// Validate input
if ( typeof dependencies !== 'object' && typeof dependencies !== 'string' ) {
- throw new Error( 'dependencies must be a string or an array, not a ' + typeof dependencies )
+ throw new Error( 'dependencies must be a string or an array, not a ' +
+ typeof dependencies )
}
// Allow calling with a single dependency as a string
if ( typeof dependencies === 'string' ) {
/**
* Loads an external script or one or more modules for future use
*
- * @param {mixed} modules either the name of a module, array of modules, or a URL of an external script or style
- * @param {string} type mime-type to use if calling with a URL of an external script or style; acceptable values
- * are "text/css" and "text/javascript"; if no type is provided, text/javascript is assumed
+ * @param {mixed} modules either the name of a module, array of modules,
+ * or a URL of an external script or style
+ * @param {string} type mime-type to use if calling with a URL of an
+ * external script or style; acceptable values are "text/css" and
+ * "text/javascript"; if no type is provided, text/javascript is
+ * assumed
*/
this.load = function( modules, type ) {
// Validate input
if ( typeof modules !== 'object' && typeof modules !== 'string' ) {
- throw new Error( 'dependencies must be a string or an array, not a ' + typeof dependencies )
+ throw new Error( 'dependencies must be a string or an array, not a ' +
+ typeof dependencies )
}
// Allow calling with an external script or single dependency as a string
if ( typeof modules === 'string' ) {
// Support adding arbitrary external scripts
- if ( modules.substr( 0, 7 ) == 'http://' || modules.substr( 0, 8 ) == 'https://' ) {
+ if ( modules.substr( 0, 7 ) == 'http://'
+ || modules.substr( 0, 8 ) == 'https://' )
+ {
if ( type === 'text/css' ) {
- $( 'head' ).append( $( '<link rel="stylesheet" type="text/css" />' ).attr( 'href', modules ) );
+ $( 'head' )
+ .append( $( '<link rel="stylesheet" type="text/css" />' )
+ .attr( 'href', modules ) );
return true;
} else if ( type === 'text/javascript' || typeof type === 'undefined' ) {
- var script = '<script type="text/javascript" src="' + modules + '"></script>';
+ var script = mediaWiki.html.element( 'script',
+ { type: 'text/javascript', src: modules }, '' );
if ( ready ) {
$( 'body' ).append( script );
} else {
$(document).ready( function() { ready = true; } );
} )();
+ /** HTML construction helper functions */
+ this.html = new ( function () {
+ function escapeCallback( s ) {
+ switch ( s ) {
+ case "'":
+ return ''';
+ case '"':
+ return '"';
+ case '<':
+ return '<';
+ case '>':
+ return '>';
+ case '&':
+ return '&';
+ }
+ }
+
+ /**
+ * Escape a string for HTML. Converts special characters to HTML entities.
+ * @param s The string to escape
+ */
+ this.escape = function( s ) {
+ return s.replace( /['"<>&]/g, escapeCallback );
+ };
+
+ /**
+ * Wrapper object for raw HTML passed to mediaWiki.html.element().
+ */
+ this.Raw = function( value ) {
+ this.value = value;
+ };
+
+ /**
+ * Wrapper object for CDATA element contents passed to mediaWiki.html.element()
+ */
+ this.Cdata = function( value ) {
+ this.value = value;
+ }
+
+ /**
+ * Create an HTML element string, with safe escaping.
+ *
+ * @param name The tag name.
+ * @param attrs An object with members mapping element names to values
+ * @param contents The contents of the element. May be either:
+ * - string: The string is escaped.
+ * - null or undefined: The short closing form is used, e.g. <br/>.
+ * - this.Raw: The value attribute is included without escaping.
+ * - this.Cdata: The value attribute is included, and an exception is
+ * thrown if it contains an illegal ETAGO delimiter.
+ * See http://www.w3.org/TR/1999/REC-html401-19991224/appendix/notes.html#h-B.3.2
+ *
+ * Example:
+ * var h = mediaWiki.html;
+ * return h.element( 'div', {},
+ * new h.Raw( h.element( 'img', {src: '<'} ) ) );
+ * Returns <div><img src="<"/></div>
+ */
+ this.element = function( name, attrs, contents ) {
+ var s = '<' + name;
+ for ( attrName in attrs ) {
+ s += ' ' + attrName + '="' + this.escape( attrs[attrName] ) + '"';
+ }
+ if ( typeof contents == 'undefined' || contents === null ) {
+ // Self close tag
+ s += '/>';
+ return s;
+ }
+ // Regular open tag
+ s += '>';
+ if (typeof contents === 'string') {
+ // Escaped
+ s += this.escape( contents );
+ } else if ( contents instanceof this.Raw ) {
+ // Raw HTML inclusion
+ s += contents.value;
+ } else if ( contents instanceof this.Cdata ) {
+ // CDATA
+ if ( /<\/[a-zA-z]/.test( contents.value ) ) {
+ throw new Error( 'mw.html.element: Illegal end tag found in CDATA' );
+ }
+ s += contents.value;
+ } else {
+ throw new Error( 'mw.html.element: Invalid type of contents' );
+ }
+ s += '</' + name + '>';
+ return s;
+ };
+ } )();
+
+
/* Extension points */
this.legacy = {};
// Alias $j to jQuery for backwards compatibility
window.$j = jQuery;
-window.mw = mediaWiki;
\ No newline at end of file
+window.mw = mediaWiki;