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Diffstat (limited to 'includes/js/dojox/rpc/JsonReferencing.js')
-rw-r--r-- | includes/js/dojox/rpc/JsonReferencing.js | 265 |
1 files changed, 0 insertions, 265 deletions
diff --git a/includes/js/dojox/rpc/JsonReferencing.js b/includes/js/dojox/rpc/JsonReferencing.js deleted file mode 100644 index 618ea06..0000000 --- a/includes/js/dojox/rpc/JsonReferencing.js +++ /dev/null @@ -1,265 +0,0 @@ -if(!dojo._hasResource["dojox.rpc.JsonReferencing"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. -dojo._hasResource["dojox.rpc.JsonReferencing"] = true; -dojo.provide("dojox.rpc.JsonReferencing"); -dojo.require("dojo.date.stamp"); -dojo.require("dojo._base.Deferred"); - -// summary: -// Adds advanced JSON {de}serialization capabilities to the base json library. -// This enhances the capabilities of dojo.toJson and dojo.fromJson, -// adding referencing support, date handling, and other extra format handling. -// On parsing, references are resolved. When references are made to -// ids/objects that have been loaded yet, a Deferred object will be used as the -// value and as soon as a callback is added to the Deferred object, the target -// object will be loaded. - - - -dojox.rpc._index={}; // the global map of id->object -dojox.rpc.onUpdate = function(/*Object*/ object, /* attribute-name-string */ attribute, /* any */ oldValue, /* any */ newValue){ - // summary: - // This function is called when an existing object in the system is updated. Existing objects are found by id. -}; - -dojox.rpc.resolveJson = function(/*Object*/ root,/*Object?*/ schema){ - // summary: - // Indexes and resolves references in the JSON object. - // A JSON Schema object that can be used to advise the handling of the JSON (defining ids, date properties, urls, etc) - // - // root: - // The root object of the object graph to be processed - // - // schema: A JSON Schema object that can be used to advise the parsing of the JSON (defining ids, date properties, urls, etc) // - // Currently this provides a means for context based id handling - // - // return: - // An object, the result of the processing - var ref,reWalk=[]; - function makeIdInfo(schema){ // find out what attribute and what id prefix to use - if (schema){ - var attr; - if (!(attr = schema._idAttr)){ - for (var i in schema.properties){ - if (schema.properties[i].unique){ - schema._idAttr = attr = i; - } - } - } - if (attr || schema._idPrefix){ - return {attr:attr || 'id',prefix:schema._idPrefix}; - } - } - - return false; - } - function walk(it,stop,schema,idInfo,defaultId){ - // this walks the new graph, resolving references and making other changes - var val,i; - var id = it[idInfo.attr]; - id = (id && (idInfo.prefix + id)) || defaultId; // if there is an id, prefix it, otherwise inherit - var target = it; - - if (id){ // if there is an id available... - it._id = id; - if (dojox.rpc._index[id]){ // if the id already exists in the system, we should use the existing object, and just update it - target = dojox.rpc._index[id]; - delete target.$ref; // remove this artifact - } - dojox.rpc._index[id] = target; // add the prefix, set _id, and index it - if (schema && dojox.validate && dojox.validate.jsonSchema){ // if json schema is activated, we can load it in the registry of instance schemas map - dojox.validate.jsonSchema._schemas[id] = schema; - } - - } - for (i in it){ - if (it.hasOwnProperty(i) && (typeof (val=it[i]) =='object') && val){ - ref=val.$ref; - if (ref){ // a reference was found - var stripped = ref.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, '');// trim it - if(/[\w\[\]\.\$ \/\r\n\t]/.test(stripped) && !/=|((^|\W)new\W)/.test(stripped)){ // make sure it is a safe reference - var path = ref.match(/(^\.*[^\.\[]+)([\.\[].*)?/); // divide along the path - if ((ref=path[1]=='$' ? root:dojox.rpc._index[new dojo._Url(idInfo.prefix,path[1])]) && // a $ indicates to start with the root, otherwise start with an id - (ref = path[2] ? eval('ref' + path[2]) : ref)){// starting point was found, use eval to resolve remaining property references - // otherwise, no starting point was found (id not found), if stop is set, it does not exist, we have - // unloaded reference, if stop is not set, it may be in a part of the graph not walked yet, - // we will wait for the second loop - val = ref; - } - else{ - if (!stop){ - if (!rewalking) - reWalk.push(it); // we need to rewalk it to resolve references - var rewalking = true; // we only want to add it once - } - else { - ref = val.$ref; - val = new dojo.Deferred(); - val._id = idInfo.prefix + ref; - (function(val,ref){ - var connectId = dojo.connect(val,"addCallbacks",function(){ - dojo.disconnect(connectId); - dojox.rpc.services[idInfo.prefix.substring(0,idInfo.prefix.length-1)](ref) // otherwise call by looking up the service - .addCallback(dojo.hitch(val,val.callback)); - - }); - })(val,ref); - } - } - } - } - else { - if (!stop){ // if we are in stop, that means we are in the second loop, and we only need to check this current one, - // further walking may lead down circular loops - var valSchema = val.schema || // a schema can be self-defined by the object, - (schema && schema.properties && schema.properties[i]); // or it can from the schema sub-object definition - if (valSchema){ - idInfo = makeIdInfo(valSchema)||idInfo; - } - val = walk(val,reWalk==it,valSchema,idInfo,id && (id + ('[' + dojo._escapeString(i) + ']'))); - } - } - } - if (dojo.isString(val) && schema && schema.properties && schema.properties[i] && schema.properties[i].format=='date-time'){// parse the date string - val = dojo.date.stamp.fromISOString(val); // create a date object - } - it[i] = val; - var old = target[i]; - if (val !== old){ // only update if it changed - target[i] = val; // update the target - propertyChange(i,old,val); - } - } - function propertyChange(key,old,newValue){ - setTimeout(function(){ - dojox.rpc.onUpdate(target,i,old,newValue); // call the listener for each update - }); - } - if (target != it){ // this means we are updating, we need to remove deleted - for (i in target){ - if (!it.hasOwnProperty(i) && i != '_id' && !(target instanceof Array && isNaN(i))){ - propertyChange(i,target[i],undefined); - delete target[i]; - } - } - } - return target; - } - var idInfo = makeIdInfo(schema)||{attr:'id',prefix:''}; - if (!root){ return root; } - root = walk(root,false,schema,idInfo,dojox._newId && (new dojo._Url(idInfo.prefix,dojox._newId) +'')); // do the main walk through - walk(reWalk,false,schema,idInfo); // re walk any parts that were not able to resolve references on the first round - return root; -}; -dojox.rpc.fromJson = function(/*String*/ str,/*Object?*/ schema){ - // summary: - // evaluates the passed string-form of a JSON object. - // A JSON Schema object that can be used to advise the parsing of the JSON (defining ids, date properties, urls, etc) - // which may defined by setting dojox.currentSchema to the current schema you want to use for this evaluation - // - // json: - // a string literal of a JSON item, for instance: - // '{ "foo": [ "bar", 1, { "baz": "thud" } ] }' - // schema: A JSON Schema object that can be used to advise the parsing of the JSON (defining ids, date properties, urls, etc) // - // Currently this provides a means for context based id handling - // - // return: - // An object, the result of the evaluation - root = eval('(' + str + ')'); // do the eval - if (root){ - return this.resolveJson(root,schema); - } - return root; -} -dojox.rpc.toJson = function(/*Object*/ it, /*Boolean?*/ prettyPrint, /*Object?*/ schema){ - // summary: - // Create a JSON serialization of an object. - // This has support for referencing, including circular references, duplicate references, and out-of-message references - // id and path-based referencing is supported as well and is based on http://www.json.com/2007/10/19/json-referencing-proposal-and-library/. - // - // it: - // an object to be serialized. - // - // prettyPrint: - // if true, we indent objects and arrays to make the output prettier. - // The variable dojo.toJsonIndentStr is used as the indent string - // -- to use something other than the default (tab), - // change that variable before calling dojo.toJson(). - // - // schema: A JSON Schema object that can be used to advise the parsing of the JSON (defining ids, date properties, urls, etc) // - // Currently this provides a means for context based id handling - // - // return: - // a String representing the serialized version of the passed object. - - var idPrefix = (schema&& schema._idPrefix) || ''; // the id prefix for this context - var paths={}; - function serialize(it,path,_indentStr){ - if (it && dojo.isObject(it)){ - var value; - if (it instanceof Date){ // properly serialize dates - return '"' + dojo.date.stamp.toISOString(it,{zulu:true}) + '"'; - } - var id = it._id; - if (id){ // we found an identifiable object, we will just serialize a reference to it... unless it is the root - - if (path != '$'){ - return serialize({$ref:id.charAt(0)=='$' ? id : // a pure path based reference, leave it alone - id.substring(0,idPrefix.length)==idPrefix ? // see if the reference is in the current context - id.substring(idPrefix.length): // a reference with a prefix matching the current context, the prefix should be removed - '../' + id});// a reference to a different context, assume relative url based referencing - } - path = id; - } - else { - it._id = path; // we will create path ids for other objects in case they are circular - paths[path] = it;// save it here so they can be deleted at the end - } - _indentStr = _indentStr || ""; - var nextIndent = prettyPrint ? _indentStr + dojo.toJsonIndentStr : ""; - var newLine = prettyPrint ? "\n" : ""; - var sep = prettyPrint ? " " : ""; - - if (it instanceof Array){ - var res = dojo.map(it, function(obj,i){ - var val = serialize(obj, path + '[' + i + ']', nextIndent); - if(!dojo.isString(val)){ - val = "undefined"; - } - return newLine + nextIndent + val; - }); - return "[" + res.join("," + sep) + newLine + _indentStr + "]"; - } - - var output = []; - for(var i in it){ - var keyStr; - if(typeof i == "number"){ - keyStr = '"' + i + '"'; - }else if(dojo.isString(i) && i != '_id'){ - keyStr = dojo._escapeString(i); - }else{ - // skip non-string or number keys - continue; - } - var val = serialize(it[i],path+(i.match(/^[a-zA-Z]\w*$/) ? // can we use simple .property syntax? - ('.' + i) : // yes, otherwise we have to escape it - ('[' + dojo._escapeString(i) + ']')),nextIndent); - if(!dojo.isString(val)){ - // skip non-serializable values - continue; - } - output.push(newLine + nextIndent + keyStr + ":" + sep + val); - } - return "{" + output.join("," + sep) + newLine + _indentStr + "}"; - } - - return dojo.toJson(it); // use the default serializer for primitives - } - var json = serialize(it,'$',''); - for (i in paths){ // cleanup the temporary path-generated ids - delete paths[i]._id; - } - return json; -} - -} |