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/*
Copyright (c) 2011, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.com/yui/license.html
version: 2.9.0
*/
/**
* The YAHOO object is the single global object used by YUI Library. It
* contains utility function for setting up namespaces, inheritance, and
* logging. YAHOO.util, YAHOO.widget, and YAHOO.example are namespaces
* created automatically for and used by the library.
* @module yahoo
* @title YAHOO Global
*/
/**
* YAHOO_config is not included as part of the library. Instead it is an
* object that can be defined by the implementer immediately before
* including the YUI library. The properties included in this object
* will be used to configure global properties needed as soon as the
* library begins to load.
* @class YAHOO_config
* @static
*/
/**
* A reference to a function that will be executed every time a YAHOO module
* is loaded. As parameter, this function will receive the version
* information for the module. See
* YAHOO.env.getVersion for the description of the version data structure.
* @property listener
* @type Function
* @static
* @default undefined
*/
/**
* Set to true if the library will be dynamically loaded after window.onload.
* Defaults to false
* @property injecting
* @type boolean
* @static
* @default undefined
*/
/**
* Instructs the yuiloader component to dynamically load yui components and
* their dependencies. See the yuiloader documentation for more information
* about dynamic loading
* @property load
* @static
* @default undefined
* @see yuiloader
*/
/**
* Forces the use of the supplied locale where applicable in the library
* @property locale
* @type string
* @static
* @default undefined
*/
if (typeof YAHOO == "undefined" || !YAHOO) {
/**
* The YAHOO global namespace object. If YAHOO is already defined, the
* existing YAHOO object will not be overwritten so that defined
* namespaces are preserved.
* @class YAHOO
* @static
*/
var YAHOO = {};
}
/**
* Returns the namespace specified and creates it if it doesn't exist
*
* YAHOO.namespace("property.package");
* YAHOO.namespace("YAHOO.property.package");
*
* Either of the above would create YAHOO.property, then
* YAHOO.property.package
*
* Be careful when naming packages. Reserved words may work in some browsers
* and not others. For instance, the following will fail in Safari:
*
* YAHOO.namespace("really.long.nested.namespace");
*
* This fails because "long" is a future reserved word in ECMAScript
*
* For implementation code that uses YUI, do not create your components
* in the namespaces defined by YUI (
* YAHOO.util,
* YAHOO.widget,
* YAHOO.lang,
* YAHOO.tool,
* YAHOO.example,
* YAHOO.env) -- create your own namespace (e.g., 'companyname').
*
* @method namespace
* @static
* @param {String*} arguments 1-n namespaces to create
* @return {Object} A reference to the last namespace object created
*/
YAHOO.namespace = function() {
var a=arguments, o=null, i, j, d;
for (i=0; i
* name: The name of the module
* version: The version in use
* build: The build number in use
* versions: All versions that were registered
* builds: All builds that were registered.
* mainClass: An object that was was stamped with the
* current version and build. If
* mainClass.VERSION != version or mainClass.BUILD != build,
* multiple versions of pieces of the library have been
* loaded, potentially causing issues.
*
*
* @method getVersion
* @static
* @param {String} name the name of the module (event, slider, etc)
* @return {Object} The version info
*/
YAHOO.env.getVersion = function(name) {
return YAHOO.env.modules[name] || null;
};
/**
* Do not fork for a browser if it can be avoided. Use feature detection when
* you can. Use the user agent as a last resort. YAHOO.env.ua stores a version
* number for the browser engine, 0 otherwise. This value may or may not map
* to the version number of the browser using the engine. The value is
* presented as a float so that it can easily be used for boolean evaluation
* as well as for looking for a particular range of versions. Because of this,
* some of the granularity of the version info may be lost (e.g., Gecko 1.8.0.9
* reports 1.8).
* @class YAHOO.env.ua
* @static
*/
/**
* parses a user agent string (or looks for one in navigator to parse if
* not supplied).
* @method parseUA
* @since 2.9.0
* @static
*/
YAHOO.env.parseUA = function(agent) {
var numberify = function(s) {
var c = 0;
return parseFloat(s.replace(/\./g, function() {
return (c++ == 1) ? '' : '.';
}));
},
nav = navigator,
o = {
/**
* Internet Explorer version number or 0. Example: 6
* @property ie
* @type float
* @static
*/
ie: 0,
/**
* Opera version number or 0. Example: 9.2
* @property opera
* @type float
* @static
*/
opera: 0,
/**
* Gecko engine revision number. Will evaluate to 1 if Gecko
* is detected but the revision could not be found. Other browsers
* will be 0. Example: 1.8
*
* Firefox 1.0.0.4: 1.7.8 <-- Reports 1.7
* Firefox 1.5.0.9: 1.8.0.9 <-- 1.8
* Firefox 2.0.0.3: 1.8.1.3 <-- 1.81
* Firefox 3.0 <-- 1.9
* Firefox 3.5 <-- 1.91
*
* @property gecko
* @type float
* @static
*/
gecko: 0,
/**
* AppleWebKit version. KHTML browsers that are not WebKit browsers
* will evaluate to 1, other browsers 0. Example: 418.9
*
* Safari 1.3.2 (312.6): 312.8.1 <-- Reports 312.8 -- currently the
* latest available for Mac OSX 10.3.
* Safari 2.0.2: 416 <-- hasOwnProperty introduced
* Safari 2.0.4: 418 <-- preventDefault fixed
* Safari 2.0.4 (419.3): 418.9.1 <-- One version of Safari may run
* different versions of webkit
* Safari 2.0.4 (419.3): 419 <-- Tiger installations that have been
* updated, but not updated
* to the latest patch.
* Webkit 212 nightly: 522+ <-- Safari 3.0 precursor (with native
* SVG and many major issues fixed).
* Safari 3.0.4 (523.12) 523.12 <-- First Tiger release - automatic
* update from 2.x via the 10.4.11 OS patch.
* Webkit nightly 1/2008:525+ <-- Supports DOMContentLoaded event.
* yahoo.com user agent hack removed.
*
* http://en.wikipedia.org/wiki/Safari_version_history
* @property webkit
* @type float
* @static
*/
webkit: 0,
/**
* Chrome will be detected as webkit, but this property will also
* be populated with the Chrome version number
* @property chrome
* @type float
* @static
*/
chrome: 0,
/**
* The mobile property will be set to a string containing any relevant
* user agent information when a modern mobile browser is detected.
* Currently limited to Safari on the iPhone/iPod Touch, Nokia N-series
* devices with the WebKit-based browser, and Opera Mini.
* @property mobile
* @type string
* @static
*/
mobile: null,
/**
* Adobe AIR version number or 0. Only populated if webkit is detected.
* Example: 1.0
* @property air
* @type float
*/
air: 0,
/**
* Detects Apple iPad's OS version
* @property ipad
* @type float
* @static
*/
ipad: 0,
/**
* Detects Apple iPhone's OS version
* @property iphone
* @type float
* @static
*/
iphone: 0,
/**
* Detects Apples iPod's OS version
* @property ipod
* @type float
* @static
*/
ipod: 0,
/**
* General truthy check for iPad, iPhone or iPod
* @property ios
* @type float
* @static
*/
ios: null,
/**
* Detects Googles Android OS version
* @property android
* @type float
* @static
*/
android: 0,
/**
* Detects Palms WebOS version
* @property webos
* @type float
* @static
*/
webos: 0,
/**
* Google Caja version number or 0.
* @property caja
* @type float
*/
caja: nav && nav.cajaVersion,
/**
* Set to true if the page appears to be in SSL
* @property secure
* @type boolean
* @static
*/
secure: false,
/**
* The operating system. Currently only detecting windows or macintosh
* @property os
* @type string
* @static
*/
os: null
},
ua = agent || (navigator && navigator.userAgent),
loc = window && window.location,
href = loc && loc.href,
m;
o.secure = href && (href.toLowerCase().indexOf("https") === 0);
if (ua) {
if ((/windows|win32/i).test(ua)) {
o.os = 'windows';
} else if ((/macintosh/i).test(ua)) {
o.os = 'macintosh';
} else if ((/rhino/i).test(ua)) {
o.os = 'rhino';
}
// Modern KHTML browsers should qualify as Safari X-Grade
if ((/KHTML/).test(ua)) {
o.webkit = 1;
}
// Modern WebKit browsers are at least X-Grade
m = ua.match(/AppleWebKit\/([^\s]*)/);
if (m && m[1]) {
o.webkit = numberify(m[1]);
// Mobile browser check
if (/ Mobile\//.test(ua)) {
o.mobile = 'Apple'; // iPhone or iPod Touch
m = ua.match(/OS ([^\s]*)/);
if (m && m[1]) {
m = numberify(m[1].replace('_', '.'));
}
o.ios = m;
o.ipad = o.ipod = o.iphone = 0;
m = ua.match(/iPad|iPod|iPhone/);
if (m && m[0]) {
o[m[0].toLowerCase()] = o.ios;
}
} else {
m = ua.match(/NokiaN[^\/]*|Android \d\.\d|webOS\/\d\.\d/);
if (m) {
// Nokia N-series, Android, webOS, ex: NokiaN95
o.mobile = m[0];
}
if (/webOS/.test(ua)) {
o.mobile = 'WebOS';
m = ua.match(/webOS\/([^\s]*);/);
if (m && m[1]) {
o.webos = numberify(m[1]);
}
}
if (/ Android/.test(ua)) {
o.mobile = 'Android';
m = ua.match(/Android ([^\s]*);/);
if (m && m[1]) {
o.android = numberify(m[1]);
}
}
}
m = ua.match(/Chrome\/([^\s]*)/);
if (m && m[1]) {
o.chrome = numberify(m[1]); // Chrome
} else {
m = ua.match(/AdobeAIR\/([^\s]*)/);
if (m) {
o.air = m[0]; // Adobe AIR 1.0 or better
}
}
}
if (!o.webkit) { // not webkit
// @todo check Opera/8.01 (J2ME/MIDP; Opera Mini/2.0.4509/1316; fi; U; ssr)
m = ua.match(/Opera[\s\/]([^\s]*)/);
if (m && m[1]) {
o.opera = numberify(m[1]);
m = ua.match(/Version\/([^\s]*)/);
if (m && m[1]) {
o.opera = numberify(m[1]); // opera 10+
}
m = ua.match(/Opera Mini[^;]*/);
if (m) {
o.mobile = m[0]; // ex: Opera Mini/2.0.4509/1316
}
} else { // not opera or webkit
m = ua.match(/MSIE\s([^;]*)/);
if (m && m[1]) {
o.ie = numberify(m[1]);
} else { // not opera, webkit, or ie
m = ua.match(/Gecko\/([^\s]*)/);
if (m) {
o.gecko = 1; // Gecko detected, look for revision
m = ua.match(/rv:([^\s\)]*)/);
if (m && m[1]) {
o.gecko = numberify(m[1]);
}
}
}
}
}
}
return o;
};
YAHOO.env.ua = YAHOO.env.parseUA();
/*
* Initializes the global by creating the default namespaces and applying
* any new configuration information that is detected. This is the setup
* for env.
* @method init
* @static
* @private
*/
(function() {
YAHOO.namespace("util", "widget", "example");
/*global YAHOO_config*/
if ("undefined" !== typeof YAHOO_config) {
var l=YAHOO_config.listener, ls=YAHOO.env.listeners,unique=true, i;
if (l) {
// if YAHOO is loaded multiple times we need to check to see if
// this is a new config object. If it is, add the new component
// load listener to the stack
for (i=0; i': '>',
'"': '"',
"'": ''',
'/': '/',
'`': '`'
},
// ADD = ["toString", "valueOf", "hasOwnProperty"],
ADD = ["toString", "valueOf"],
OB = {
/**
* Determines wheather or not the provided object is an array.
* @method isArray
* @param {any} o The object being testing
* @return {boolean} the result
*/
isArray: function(o) {
return OP.toString.apply(o) === ARRAY_TOSTRING;
},
/**
* Determines whether or not the provided object is a boolean
* @method isBoolean
* @param {any} o The object being testing
* @return {boolean} the result
*/
isBoolean: function(o) {
return typeof o === 'boolean';
},
/**
* Determines whether or not the provided object is a function.
* Note: Internet Explorer thinks certain functions are objects:
*
* var obj = document.createElement("object");
* YAHOO.lang.isFunction(obj.getAttribute) // reports false in IE
*
* var input = document.createElement("input"); // append to body
* YAHOO.lang.isFunction(input.focus) // reports false in IE
*
* You will have to implement additional tests if these functions
* matter to you.
*
* @method isFunction
* @param {any} o The object being testing
* @return {boolean} the result
*/
isFunction: function(o) {
return (typeof o === 'function') || OP.toString.apply(o) === FUNCTION_TOSTRING;
},
/**
* Determines whether or not the provided object is null
* @method isNull
* @param {any} o The object being testing
* @return {boolean} the result
*/
isNull: function(o) {
return o === null;
},
/**
* Determines whether or not the provided object is a legal number
* @method isNumber
* @param {any} o The object being testing
* @return {boolean} the result
*/
isNumber: function(o) {
return typeof o === 'number' && isFinite(o);
},
/**
* Determines whether or not the provided object is of type object
* or function
* @method isObject
* @param {any} o The object being testing
* @return {boolean} the result
*/
isObject: function(o) {
return (o && (typeof o === 'object' || L.isFunction(o))) || false;
},
/**
* Determines whether or not the provided object is a string
* @method isString
* @param {any} o The object being testing
* @return {boolean} the result
*/
isString: function(o) {
return typeof o === 'string';
},
/**
* Determines whether or not the provided object is undefined
* @method isUndefined
* @param {any} o The object being testing
* @return {boolean} the result
*/
isUndefined: function(o) {
return typeof o === 'undefined';
},
/**
* IE will not enumerate native functions in a derived object even if the
* function was overridden. This is a workaround for specific functions
* we care about on the Object prototype.
* @property _IEEnumFix
* @param {Function} r the object to receive the augmentation
* @param {Function} s the object that supplies the properties to augment
* @static
* @private
*/
_IEEnumFix: (YAHOO.env.ua.ie) ? function(r, s) {
var i, fname, f;
for (i=0;i
* Returns a copy of the specified string with special HTML characters
* escaped. The following characters will be converted to their
* corresponding character entities:
* & < > " ' / `
*
*
*
* This implementation is based on the
* OWASP
* HTML escaping recommendations. In addition to the characters
* in the OWASP recommendation, we also escape the `
* character, since IE interprets it as an attribute delimiter when used in
* innerHTML.
*
*
* @method escapeHTML
* @param {String} html String to escape.
* @return {String} Escaped string.
* @static
* @since 2.9.0
*/
escapeHTML: function (html) {
return html.replace(/[&<>"'\/`]/g, function (match) {
return HTML_CHARS[match];
});
},
/**
* Utility to set up the prototype, constructor and superclass properties to
* support an inheritance strategy that can chain constructors and methods.
* Static members will not be inherited.
*
* @method extend
* @static
* @param {Function} subc the object to modify
* @param {Function} superc the object to inherit
* @param {Object} overrides additional properties/methods to add to the
* subclass prototype. These will override the
* matching items obtained from the superclass
* if present.
*/
extend: function(subc, superc, overrides) {
if (!superc||!subc) {
throw new Error("extend failed, please check that " +
"all dependencies are included.");
}
var F = function() {}, i;
F.prototype=superc.prototype;
subc.prototype=new F();
subc.prototype.constructor=subc;
subc.superclass=superc.prototype;
if (superc.prototype.constructor == OP.constructor) {
superc.prototype.constructor=superc;
}
if (overrides) {
for (i in overrides) {
if (L.hasOwnProperty(overrides, i)) {
subc.prototype[i]=overrides[i];
}
}
L._IEEnumFix(subc.prototype, overrides);
}
},
/**
* Applies all properties in the supplier to the receiver if the
* receiver does not have these properties yet. Optionally, one or
* more methods/properties can be specified (as additional
* parameters). This option will overwrite the property if receiver
* has it already. If true is passed as the third parameter, all
* properties will be applied and _will_ overwrite properties in
* the receiver.
*
* @method augmentObject
* @static
* @since 2.3.0
* @param {Function} r the object to receive the augmentation
* @param {Function} s the object that supplies the properties to augment
* @param {String*|boolean} arguments zero or more properties methods
* to augment the receiver with. If none specified, everything
* in the supplier will be used unless it would
* overwrite an existing property in the receiver. If true
* is specified as the third parameter, all properties will
* be applied and will overwrite an existing property in
* the receiver
*/
augmentObject: function(r, s) {
if (!s||!r) {
throw new Error("Absorb failed, verify dependencies.");
}
var a=arguments, i, p, overrideList=a[2];
if (overrideList && overrideList!==true) { // only absorb the specified properties
for (i=2; i 0) ? L.dump(o[i], d-1) : OBJ);
} else {
s.push(o[i]);
}
s.push(COMMA);
}
if (s.length > 1) {
s.pop();
}
s.push("]");
// objects {k1 => v1, k2 => v2}
} else {
s.push("{");
for (i in o) {
if (L.hasOwnProperty(o, i)) {
s.push(i + ARROW);
if (L.isObject(o[i])) {
s.push((d > 0) ? L.dump(o[i], d-1) : OBJ);
} else {
s.push(o[i]);
}
s.push(COMMA);
}
}
if (s.length > 1) {
s.pop();
}
s.push("}");
}
return s.join("");
},
/**
* Does variable substitution on a string. It scans through the string
* looking for expressions enclosed in { } braces. If an expression
* is found, it is used a key on the object. If there is a space in
* the key, the first word is used for the key and the rest is provided
* to an optional function to be used to programatically determine the
* value (the extra information might be used for this decision). If
* the value for the key in the object, or what is returned from the
* function has a string value, number value, or object value, it is
* substituted for the bracket expression and it repeats. If this
* value is an object, it uses the Object's toString() if this has
* been overridden, otherwise it does a shallow dump of the key/value
* pairs.
*
* By specifying the recurse option, the string is rescanned after
* every replacement, allowing for nested template substitutions.
* The side effect of this option is that curly braces in the
* replacement content must be encoded.
*
* @method substitute
* @since 2.3.0
* @param s {String} The string that will be modified.
* @param o {Object} An object containing the replacement values
* @param f {Function} An optional function that can be used to
* process each match. It receives the key,
* value, and any extra metadata included with
* the key inside of the braces.
* @param recurse {boolean} default true - if not false, the replaced
* string will be rescanned so that nested substitutions are possible.
* @return {String} the substituted string
*/
substitute: function (s, o, f, recurse) {
var i, j, k, key, v, meta, saved=[], token, lidx=s.length,
DUMP='dump', SPACE=' ', LBRACE='{', RBRACE='}',
dump, objstr;
for (;;) {
i = s.lastIndexOf(LBRACE, lidx);
if (i < 0) {
break;
}
j = s.indexOf(RBRACE, i);
if (i + 1 > j) {
break;
}
//Extract key and meta info
token = s.substring(i + 1, j);
key = token;
meta = null;
k = key.indexOf(SPACE);
if (k > -1) {
meta = key.substring(k + 1);
key = key.substring(0, k);
}
// lookup the value
v = o[key];
// if a substitution function was provided, execute it
if (f) {
v = f(key, v, meta);
}
if (L.isObject(v)) {
if (L.isArray(v)) {
v = L.dump(v, parseInt(meta, 10));
} else {
meta = meta || "";
// look for the keyword 'dump', if found force obj dump
dump = meta.indexOf(DUMP);
if (dump > -1) {
meta = meta.substring(4);
}
objstr = v.toString();
// use the toString if it is not the Object toString
// and the 'dump' meta info was not found
if (objstr === OBJECT_TOSTRING || dump > -1) {
v = L.dump(v, parseInt(meta, 10));
} else {
v = objstr;
}
}
} else if (!L.isString(v) && !L.isNumber(v)) {
// This {block} has no replace string. Save it for later.
v = "~-" + saved.length + "-~";
saved[saved.length] = token;
// break;
}
s = s.substring(0, i) + v + s.substring(j + 1);
if (recurse === false) {
lidx = i-1;
}
}
// restore saved {block}s
for (i=saved.length-1; i>=0; i=i-1) {
s = s.replace(new RegExp("~-" + i + "-~"), "{" + saved[i] + "}", "g");
}
return s;
},
/**
* Returns a string without any leading or trailing whitespace. If
* the input is not a string, the input will be returned untouched.
* @method trim
* @since 2.3.0
* @param s {string} the string to trim
* @return {string} the trimmed string
*/
trim: function(s){
try {
return s.replace(/^\s+|\s+$/g, "");
} catch(e) {
return s;
}
},
/**
* Returns a new object containing all of the properties of
* all the supplied objects. The properties from later objects
* will overwrite those in earlier objects.
* @method merge
* @since 2.3.0
* @param arguments {Object*} the objects to merge
* @return the new merged object
*/
merge: function() {
var o={}, a=arguments, l=a.length, i;
for (i=0; i
* var A = function() {};
* A.prototype.foo = 'foo';
* var a = new A();
* a.foo = 'foo';
* alert(a.hasOwnProperty('foo')); // true
* alert(YAHOO.lang.hasOwnProperty(a, 'foo')); // false when using fallback
*