cacert-testmgr/external/ZendFramework-1.9.5/externals/dojo/demos/i18n/model.js

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dojo.provide("demos.i18n.model");
dojo.declare(
"i18nTreeModel",
null,
{
// summary:
// Implements dijit.Tree.model connecting to I18N data
// stub to call geoname RPC server
geoname: null,
// array of info about each country
countries: null,
constructor: function(args){
this.lang = args.lang || "en";
// This allows calls to geonames server
this.geonames = new dojox.rpc.Service(dojo.moduleUrl("dojox.rpc.SMDLibrary", "geonames.smd"));
},
destroy: function(){
},
// =======================================================================
// Methods for traversing hierarchy
getRoot: function(onItem, onError){
onItem({type: "root", root: true, name: "Continents"});
},
mayHaveChildren: function(/*dojo.data.Item*/ item){
// summary:
// Tells if an item has or may have children.
return item.root || item.type == "continent" || item.type == "country";
},
getChildren: function(/*dojo.data.Item*/ item, /*function(items)*/ onComplete, /*function*/ onError){
// summary:
// Calls onComplete() with array of child items of given parent item, all loaded.
switch(item.root ? "top" : item.type){
case "top":
var d = dojo.xhrGet({url: "continents.json", handleAs: "json-comment-optional"});
d.addCallback(onComplete);
break;
case "continent":
// Unfortunately we can't query countries filtering by continent, so the first time
// we hit this code we just query all the countries and store them away
var callback = function(countries){
var matches = dojo.filter(countries, function(c){
c.type = "country";
return c.continent == item.iso;
});
onComplete( matches );
};
if(!this.countries){
// Load country database over RPC to Geonames server
var def = this.geonames.getCountryInfo({lang: this.lang});
def.addCallback(this, function(result){
this.countries = result.geonames;
callback(this.countries);
});
}else{
callback(this.countries);
}
break;
case "country":
// First time we are asked for the children of a country, need to load
// the mapping from language code --> language name in the current page's locale
if(!this.d2){
this.d2 = dojo.xhrGet({url: "languages.json", handleAs: "json-comment-optional"});
this.d2.addCallback(this, function(data){
// first item on deferred chain filters languages.json data down to
// language names in current page's locale
return dojo.filter(data, function(l){
return l.iso == this.lang;
})[0] || {};
});
}
// Once we have mapping from language ISO code to language name, use it
this.d2.addCallback(function(mapping){
// summary:
// Converts a comma separated list of locales into
// an array of locale objects, and passes that array to onComplete
// split localeList into array, ignoring final blank entry due to trailing comma
var ary = dojo.filter(item.languages.split(","), function(loc){
return loc;
});
// map array into locale objects
var locales = dojo.map(ary, function(loc){
loc = loc.toLowerCase();
// get language object for the page language
var langISO = loc.replace(/-.*/, "");
// get localized name of language
var name = mapping[langISO] || "";
return {
type: "locale",
iso: loc,
lang: langISO,
name: name + " \u202b(" + loc + ")\u202c"
};
});
onComplete(locales);
return mapping; // Deferreds need to return their original arg for the next guy in chain (in the future)
});
break;
}
},
// =======================================================================
// Inspecting items
getIdentity: function(/* item */ item){
// Prefer item.key over item.countryCode to differentiate between countries and continents
// w/same iso code (like AN).
return item.root ? "world" : (item.key || item.iso || item.countryCode);
},
getLabel: function(/*dojo.data.Item*/ item){
// summary: get the label for an item
return item.name || item.countryName;
},
// =======================================================================
// Write interface (unimplemented)
newItem: function(/* Object? */ args, /*Item*/ parent){
},
pasteItem: function(/*Item*/ childItem, /*Item*/ oldParentItem, /*Item*/ newParentItem, /*Boolean*/ bCopy){
},
// =======================================================================
// Callbacks (unimplemented)
onChange: function(/*dojo.data.Item*/ item){
},
onChildrenChange: function(/*dojo.data.Item*/ parent, /*dojo.data.Item[]*/ newChildrenList){
},
onDelete: function(/*dojo.data.Item*/ parent, /*dojo.data.Item[]*/ newChildrenList){
}
});