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Commit 360f62d8 authored by François Billioud's avatar François Billioud
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comment and debug localStorage

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UNGProject/unhosted/jio.js
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...@@ -238,115 +238,162 @@ ...@@ -238,115 +238,162 @@
}, },
/************************************************************
*********************** LocalStorage ************************/
/** /**
* Class LocalStorage * load the list of the documents in this storage
* @class provides usual API to save/load/delete documents on the localStorage * @param option : optional object containing
* @param data : object containing every element needed to build the storage : * "success" : the function to execute when the load is done
* "userName" : the name of the user * "errorHandler" : the function to execute if an error occures
* @param applicant : object containing inforamtion about the person/application needing this JIO object * "asynchronous" : a boolean set to false if the request must be synchronous
* @return null if the request is asynchronous, the list of documents otherwise.
* @example {"file1":{fileName:"file1",creationDate:"Tue, 23 Aug 2011 15:18:32 GMT",lastModified:"Tue, 23 Aug 2011 15:18:32 GMT"},...}
*/ */
JIO.LocalStorage = function(data, applicant) { getDocumentList: function(option) {
this.userName = data.userName; var storage = this;
if(!localStorage.getItem(this.userName)) {localStorage[this.userName] = "{}"}//new user var list = null;
this.documents = JSON.parse(localStorage.getItem(this.userName));//load documents $.ajax({
url: storage.location + "/dav/"+storage.userName+"/"+storage.applicationID+"/",
async: option.asyncronous || true,
type: "PROPFIND",
dataType: "xml",
headers: {Authorization: "Basic "+Base64.encode(this.userName+":"+this.applicationPassword), Depth: "1"},
fields: {withCredentials: "true"},
success: function(data) {list=xml2jsonFileList(data);if(option.success) option.success(list)},
error: option.errorHandler || function(type) {alert("Error "+type.status+" : fail while trying to load file list");}
});
return list;//warning : always null if asyncronous
function xml2jsonFileList(xmlData) {//transform the xml into a list
var fileList = {};
$("D\\:response",xmlData)
.each(function(i,data){
if(i>0) {//exclude the parent folder
var name = fileName(data);
fileList[name]=xml2jsonFile(data)
fileList[name].fileName = name;
}
});
//remove webDav files from the list
delete fileList[".htaccess"];
delete fileList[".htpasswd"];
return fileList;
}
function xml2jsonFile(xmlData) {//transform the xml about a file into json information
var file = {};
file.lastModified = $($("lp1\\:getlastmodified",xmlData).get(0)).text();
file.creationDate = $($("lp1\\:creationdate",xmlData).get(0)).text();
return file;
}
function fileName(xmlData) {//read the name of a file in the xml
var string = $($("D\\:href",xmlData).get(0)).text()
var T = string.split("/");
return T[T.length-1] ? T[T.length-1] : T[T.length-2]+"/";
}
} }
JIO.LocalStorage.prototype = { }
/**
* check if an user already exist
* @param name : the name you want to check
* @return true if the name is free, false otherwise
*/
userNameAvailable: function(name) {return localStorage[name];},
/************************************************************
*********************** LocalStorage ************************/
/**
* Class LocalStorage
* @class provides usual API to save/load/delete documents on the localStorage
* @param data : object containing every element needed to build the storage :
* "userName" : the name of the user
* @param applicant : object containing inforamtion about the person/application needing this JIO object
*/
JIO.LocalStorage = function(data, applicant) {
this.userName = data.userName;
if(!localStorage.getItem(this.userName)) {localStorage[this.userName] = "{}"}//new user
this.documents = JSON.parse(localStorage.getItem(this.userName));//load documents
}
JIO.LocalStorage.prototype = {
/** /**
* load a document in the storage * check if an user already exist
* @param fileName : the name of the file where the data will be stored * @param name : the name you want to check
* @param option : optional object containing * @return true if the name is free, false otherwise
* "success" : the function to execute when the load is done */
* "errorHandler" : the function to execute if an error occures userNameAvailable: function(name) {return localStorage[name];},
* @return the content of the document
*/
loadDocument: function(fileName, option) { /**
var doc = this.documents[fileName]; * load a document in the storage
if(!doc) { * @param fileName : the name of the file where the data will be stored
if(option.errorHandler) { * @param option : optional object containing
var error = {status: 404,message: "document not found"}; * "success" : the function to execute when the load is done
return option.errorHandler(error); * "errorHandler" : the function to execute if an error occures
} else { * @return the content of the document
return false; */
} loadDocument: function(fileName, option) {
var doc = this.documents[fileName];
if(!doc) {
if(option.errorHandler) {
var error = {status: 404,message: "document not found"};
return option.errorHandler(error);
} else { } else {
if(option.success) { return false;
return option.success(doc);
} else {
return doc
}
} }
}, } else {
if(option.success) {
/** return option.success(doc.content);
* save a document in the storage
* @param data : the data to store
* @param fileName : the name of the file where the data will be stored
* @param option : optional object containing
* success : the function to execute when the save is done
* errorHandler : the function to execute if an error occures
* overwrite : a boolean set to true if the document has to be overwritten
* oldData : last data downloaded. Used to know if data has changed since last download and has to been merged
*/
saveDocument: function(data, fileName, option) {
if(!this.documents[fileName] || option.overwrite) {
this.documents[fileName] = data;
this.save();
if(option.success) option.success();
} else { } else {
var error = {status: 403,message: "document already exists"}; return doc
if(option.errorHandler) option.errorHandler(error);
} }
}, }
},
/** /**
* Delete a document or a list of documents from the storage * save a document in the storage
* @param file : fileName or array of fileNames to delete * @param data : the data to store
* @param option : optional object containing * @param fileName : the name of the file where the data will be stored
* "success" : the function to execute when the delete is done * @param option : optional object containing
* "errorHandler" : the function to execute if an error occures * success : the function to execute when the save is done
*/ * errorHandler : the function to execute if an error occures
deleteDocument: function(file, option) { * overwrite : a boolean set to true if the document has to be overwritten
oneOrEach(file,deleteFile); * oldData : last data downloaded. Used to know if data has changed since last download and has to been merged
*/
saveDocument: function(data, fileName, option) {
if(!this.documents[fileName]) { //create document
this.documents[fileName] = {
fileName:fileName,
content: data,
creationDate: Date.now(),
lastModified: Date.now()
};
this.save(); this.save();
if(option.success) option.success(); if(option.success) option.success();
} else {
function deleteFile(fileName) { if(option.overwrite) { //overwrite
delete this.documents[fileName]; this.documents[fileName].lastModified = Date.now();
this.documents[fileName].content = data;
this.save();
if(option.success) option.success();
} else { //repport an error
var error = {status: 403,message: "document already exists"};
if(option.errorHandler) option.errorHandler(error);
} }
}, }
},
/** /**
* load the list of the documents in this storage * Delete a document or a list of documents from the storage
* @param option : optional object containing * @param file : fileName or array of fileNames to delete
* "success" : the function to execute when the load is done * @param option : optional object containing
* "errorHandler" : the function to execute if an error occures * "success" : the function to execute when the delete is done
* @return null if the request is asynchronous, the list of documents otherwise. * "errorHandler" : the function to execute if an error occures
* @example {"file1":{fileName:"file1",creationDate:"Tue, 23 Aug 2011 15:18:32 GMT",lastModified:"Tue, 23 Aug 2011 15:18:32 GMT"},...} */
*/ deleteDocument: function(file, option) {
getDocumentList: function(option) { var storage = this;
var list = this.documents; oneOrEach(file,deleteFile);
if(option.success) option.success(list); this.save();
return list; if(option.success) option.success();
},
function deleteFile(fileName) {
save: function() { delete storage.documents[fileName];
localStorage[this.userName]=JSON.stringify(this.documents);
} }
} },
/*************************************************************** /***************************************************************
*********************** IndexedStorage *************************/ *********************** IndexedStorage *************************/
......
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