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(function() {
var defaults;
var apps = {};
var themesLoaded = {};
var widgetsetsRequested = {}
var widgetsetApps = {};
var log = function() {
if (console && console.log) {
console.log(arguments);
}
}
var loadTheme = function(url) {
log("loadTheme", url);
if(!themesLoaded[url]) {
var stylesheet = document.createElement('link');
stylesheet.setAttribute('rel', 'stylesheet');
stylesheet.setAttribute('type', 'text/css');
stylesheet.setAttribute('href', url + "/styles.css");
document.getElementsByTagName('head')[0].appendChild(stylesheet);
themesLoaded[url] = true;
}
}
var isWidgetsetLoaded = function(widgetset) {
var className = widgetset.replace(/\./g, "_");
return (typeof window[className]) != "undefined";
}
var loadWidgetset = function(basePath, widgetset) {
if (widgetsetsRequested[widgetset]) {
//TODO Tell the widgetset to load another application
return;
}
log("load widgetset", basePath, widgetset)
setTimeout(function() {
if (!isWidgetsetLoaded(widgetset)) {
alert("Failed to load the widgetset: " + url);
}
}, 15000);
var url = basePath + widgetset + "/" + widgetset + ".nocache.js?" + new Date().getTime();
//document.write("<script type='text/javascript' src='"+url+"'></script>");
var scriptTag = document.createElement('script');
scriptTag.setAttribute('type', 'text/javascript');
scriptTag.setAttribute('src', url);
document.getElementsByTagName('head')[0].appendChild(scriptTag);
widgetsetsRequested[widgetset] = true;
}
window.vaadin = window.vaadin || {
setDefaults: function(d) {
if (defaults) {
throw "Defaults already defined";
}
log("Got defaults", defaults)
defaults = d;
},
initApplication: function(appId, config) {
if (apps[appId]) {
throw "Application " + appId + " already initialized";
}
log("init application", appId, config);
var getConfig = function(name) {
var value = config[name];
if (value === undefined) {
value = defaults[name];
}
return value;
}
var themeUri = getConfig('themeUri');
if (themeUri) {
loadTheme(themeUri);
}
var widgetsetBase = getConfig('widgetsetBase');
var widgetset = getConfig('widgetset');
if (widgetset && widgetsetBase) {
loadWidgetset(widgetsetBase, widgetset);
if (widgetsetApps[widgetset]) {
widgetsetApps[widgetset].push(appId);
} else {
widgetsetApps[widgetset] = [appId];
}
}
if (getConfig("debug")) {
// TODO debug state is now global for the entire page, but should somehow only be set for the current application
window.vaadin.debug = true;
}
//Export public data
var app = {
'getConfig': getConfig
};
apps[appId] = app;
return app;
},
getApp: function(appId) {
var app = apps[appId];
return app;
},
popWidgetsetApp: function(widgetset) {
if (widgetsetApps[widgetset]) {
return widgetsetApps[widgetset].pop();
} else {
return null;
}
}
};
log('Vaadin bootstrap loaded');
})();
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