402 lines
8.7 KiB
JavaScript
402 lines
8.7 KiB
JavaScript
/**
|
|
* The main namespace.
|
|
**/
|
|
var Vn =
|
|
{
|
|
Config: {}
|
|
,includes: {}
|
|
,cssIncludes: {}
|
|
,currentDeps: []
|
|
,currentCallback: null
|
|
,customTags: {}
|
|
,head: document.getElementsByTagName ('head')[0]
|
|
,isMobileCached: null
|
|
|
|
,getVersion: function ()
|
|
{
|
|
if (this._version === undefined)
|
|
{
|
|
var re = /[; ]hedera_version=([^\\s;]*)/;
|
|
var sMatch = (' '+ document.cookie).match (re);
|
|
this._version = (sMatch) ? '?'+ unescape (sMatch[1]) : '';
|
|
}
|
|
|
|
return this._version;
|
|
}
|
|
|
|
/**
|
|
* Includes a new CSS stylesheet in the current document, if the stylesheet
|
|
* is already included, does nothing.
|
|
*
|
|
* @param {string} fileName The stylesheet file name
|
|
**/
|
|
,includeCss: function (fileName)
|
|
{
|
|
var cssData = this.cssIncludes[fileName];
|
|
|
|
if (!cssData)
|
|
{
|
|
var link = document.createElement ('link');
|
|
link.rel = 'stylesheet';
|
|
link.type = 'text/css';
|
|
link.href = fileName + this.getVersion ();
|
|
this.head.appendChild (link);
|
|
|
|
this.cssIncludes[fileName] =
|
|
{
|
|
included: true
|
|
,link: link
|
|
};
|
|
}
|
|
else if (!cssData.included)
|
|
{
|
|
cssData.link.disabled = false;
|
|
cssData.included = true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Excludes a CSS stylesheet from the current document.
|
|
*
|
|
* @param {string} fileName The stylesheet file name
|
|
**/
|
|
,excludeCss: function (fileName)
|
|
{
|
|
var cssData = this.cssIncludes[fileName];
|
|
|
|
if (cssData && cssData.included)
|
|
{
|
|
cssData.link.disabled = true;
|
|
cssData.included = false;
|
|
}
|
|
}
|
|
|
|
,_createIncludeData: function (path)
|
|
{
|
|
var includeData = {
|
|
depCount: 0
|
|
,success: false
|
|
,loaded: false
|
|
,callbacks: []
|
|
,dependants: []
|
|
};
|
|
|
|
this.includes[path] = includeData;
|
|
return includeData;
|
|
}
|
|
|
|
,_handleCallback: function (includeData, callback)
|
|
{
|
|
if (!callback)
|
|
return;
|
|
|
|
if (includeData.success)
|
|
callback (includeData.loaded);
|
|
else
|
|
includeData.callbacks.push (callback);
|
|
}
|
|
|
|
,_resolveDeps: function (includeData)
|
|
{
|
|
includeData.success = true;
|
|
|
|
var callbacks = includeData.callbacks;
|
|
|
|
if (callbacks)
|
|
for (var i = 0; i < callbacks.length; i++)
|
|
callbacks[i] (includeData.loaded);
|
|
|
|
var dependants = includeData.dependants;
|
|
|
|
if (dependants)
|
|
for (var i = 0; i < dependants.length; i++)
|
|
{
|
|
var dependant = dependants[i];
|
|
dependant.depCount--;
|
|
|
|
if (dependant.depCount == 0)
|
|
this._resolveDeps (dependant);
|
|
}
|
|
|
|
delete includeData.callbacks;
|
|
delete includeData.dependants;
|
|
delete includeData.depCount;
|
|
}
|
|
|
|
/**
|
|
* Initializes the library and calls the passed function when all
|
|
* includes and its dependencies are resolved.
|
|
* Should be called on the last statically incuded script.
|
|
*
|
|
* @param {Function} callback The main function
|
|
**/
|
|
,main: function (callback)
|
|
{
|
|
if (this.mainCalled)
|
|
{
|
|
Vn.warning ("Vn: main method should be called only once");
|
|
return;
|
|
}
|
|
|
|
this.mainCalled = true;
|
|
this.mainCallback = callback;
|
|
|
|
var basePath = location.protocol +'//'+ location.host;
|
|
basePath += location.port ? ':'+ location.port : '';
|
|
basePath += location.pathname;
|
|
|
|
var scripts = this.head.getElementsByTagName ('script');
|
|
var includes = this.currentDeps;
|
|
|
|
for (var i = 0; i < scripts.length; i++)
|
|
{
|
|
var path = scripts[i].src.substr (basePath.length);
|
|
path = path.substr (0, path.indexOf ('.js')) +'.js';
|
|
|
|
var includeData = this.includes[path];
|
|
|
|
if (includeData === undefined)
|
|
{
|
|
this.currentDeps = includes;
|
|
var includeData = this._createIncludeData (path);
|
|
this._onScriptLoad (includeData, true);
|
|
}
|
|
}
|
|
|
|
includeData.callbacks.push (this._onMainDepsLoad.bind (this));
|
|
window.addEventListener ('load', this._onWindowLoad.bind (this));
|
|
}
|
|
|
|
,_onMainDepsLoad: function ()
|
|
{
|
|
this.mainDepsLoaded = true;
|
|
this._callMain ();
|
|
}
|
|
|
|
,_onWindowLoad: function ()
|
|
{
|
|
this.windowReady = true;
|
|
this._callMain ();
|
|
}
|
|
|
|
,_callMain: function ()
|
|
{
|
|
if (this.mainCallback && this.windowReady && this.mainDepsLoaded)
|
|
this.mainCallback ();
|
|
}
|
|
|
|
/**
|
|
* Includes a set of javascript files and sets it as dependecies of the
|
|
* current script.
|
|
*
|
|
* @param {...} The list of files as function arguments
|
|
**/
|
|
,include: function ()
|
|
{
|
|
for (var i = 0; i < arguments.length; i++)
|
|
{
|
|
var includeData = this._realIncludeJs (arguments[i] +'.js');
|
|
|
|
if (!includeData.success)
|
|
this.currentDeps.push (includeData);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Downloads a set of resources and sets it as dependecies of the
|
|
* current script.
|
|
*
|
|
* @param {...} The list of files as function arguments
|
|
**/
|
|
,resource: function ()
|
|
{
|
|
for (var i = 0; i < arguments.length; i++)
|
|
{
|
|
var includeData = this._realLoadXml (arguments[i]);
|
|
|
|
if (!includeData.success)
|
|
this.currentDeps.push (includeData);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sets the function that will be called when current script dependencies
|
|
* are resolved.
|
|
*
|
|
* @param {Function} callback The callback function
|
|
**/
|
|
,define: function (callback)
|
|
{
|
|
this.currentCallback = callback;
|
|
}
|
|
|
|
/**
|
|
* Includes an entire Javascript library including it's localized file.
|
|
*
|
|
* @param {string} libName The folder of the library
|
|
* @param {Array<string>} files Array with every library file name
|
|
**/
|
|
,includeLib: function (libName, files)
|
|
{
|
|
Vn.Locale.loadScript ('js/'+ libName +'.js');
|
|
|
|
for (var i = 0; i < files.length; i++)
|
|
this.include ('js/'+ libName +'/'+ files[i]);
|
|
}
|
|
|
|
/**
|
|
* Includes a new Javascript in the current document, if the script
|
|
* is already included, does nothing and calls the callback.
|
|
*
|
|
* @param {string} fileName The script file name
|
|
* @param {Function} callback The function to call when script is
|
|
* downloaded and included
|
|
**/
|
|
,includeJs: function (fileName, callback, skipVersion)
|
|
{
|
|
var includeData = this._realIncludeJs (fileName, skipVersion);
|
|
this._handleCallback (includeData, callback);
|
|
}
|
|
|
|
,_realIncludeJs: function (fileName, skipVersion)
|
|
{
|
|
var includeData = this.includes[fileName];
|
|
|
|
if (includeData === undefined)
|
|
{
|
|
includeData = this._createIncludeData (fileName);
|
|
|
|
var src = fileName;
|
|
|
|
if (!skipVersion)
|
|
src = src + this.getVersion ();
|
|
|
|
var script = document.createElement ('script');
|
|
script.type = 'text/javascript';
|
|
script.async = false;
|
|
script.src = src;
|
|
|
|
script.onload =
|
|
this._onScriptLoad.bind (this, includeData, true);
|
|
script.onerror =
|
|
this._onScriptLoad.bind (this, includeData, false);
|
|
script.onreadystatechange =
|
|
this._onScriptStateChange.bind (this, includeData, script);
|
|
|
|
this.head.appendChild (script);
|
|
}
|
|
|
|
return includeData;
|
|
}
|
|
|
|
,_onScriptStateChange: function (includeData, script)
|
|
{
|
|
if (script.readyState == 'complete')
|
|
this._onScriptLoad (includeData, true);
|
|
}
|
|
|
|
,_onScriptLoad: function (includeData, loaded)
|
|
{
|
|
includeData.loaded = loaded;
|
|
|
|
if (loaded)
|
|
{
|
|
if (this.currentCallback)
|
|
includeData.callbacks.unshift (this.currentCallback);
|
|
|
|
var includes = this.currentDeps;
|
|
|
|
if (includes && includes.length > 0)
|
|
{
|
|
includeData.depCount = includes.length;
|
|
|
|
for (var i = 0; i < includes.length; i++)
|
|
includes[i].dependants.push (includeData);
|
|
}
|
|
else
|
|
this._resolveDeps (includeData);
|
|
}
|
|
else
|
|
this._resolveDeps (includeData);
|
|
|
|
this.currentDeps = [];
|
|
this.currentCallback = null;
|
|
}
|
|
|
|
/**
|
|
* Request an XML file.
|
|
*
|
|
* @param {string} path The file path
|
|
* @param {Function} callback The function to call when file is downloaded
|
|
**/
|
|
,loadXml: function (path, callback)
|
|
{
|
|
var includeData = this._realLoadXml (path);
|
|
this._handleCallback (includeData, callback);
|
|
}
|
|
|
|
,_realLoadXml: function (path)
|
|
{
|
|
var includeData = this.includes[path];
|
|
|
|
if (includeData === undefined)
|
|
{
|
|
includeData = this._createIncludeData (path);
|
|
|
|
var request = new XMLHttpRequest ();
|
|
request.onreadystatechange =
|
|
this._onXmlReady.bind (this, includeData, request);
|
|
request.open ('get', path + this.getVersion (), true);
|
|
request.send ();
|
|
}
|
|
|
|
return includeData;
|
|
}
|
|
|
|
,_onXmlReady: function (includeData, request)
|
|
{
|
|
if (request.readyState != 4)
|
|
return;
|
|
|
|
includeData.loaded = request.status == 200;
|
|
|
|
if (includeData.loaded)
|
|
includeData.xml = request.responseXML;
|
|
|
|
this._resolveDeps (includeData);
|
|
}
|
|
|
|
/**
|
|
* Gets the DOM object from an included XML file.
|
|
*
|
|
* @param {string} path The file path
|
|
* @return {Object} The DOM object
|
|
**/
|
|
,getXml: function (path)
|
|
{
|
|
var includeData = this.includes[path];
|
|
|
|
if (!(includeData && includeData.success))
|
|
return null;
|
|
|
|
return includeData.xml;
|
|
}
|
|
|
|
/**
|
|
* Checks if user is using a mobile browser.
|
|
*
|
|
* return {boolean} %true if is mobile, %false otherwise.
|
|
**/
|
|
,isMobile: function ()
|
|
{
|
|
if (this.isMobileCached === null)
|
|
{
|
|
var regExp = /(Android|webOS|iPhone|iPad|iPod|BlackBerry|Windows Phone)/i;
|
|
this.isMobileCached = navigator.userAgent.match (regExp);
|
|
}
|
|
|
|
return this.isMobileCached;
|
|
}
|
|
};
|
|
|