Andrej Cimperšek - diploma

/*

        Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.

        Available via Academic Free License >= 2.1 OR the modified BSD license.

        see: http://dojotoolkit.org/license for details

*/

if(!dojo._hasResource["dojox.storage.GearsStorageProvider"]){

dojo._hasResource["dojox.storage.GearsStorageProvider"]=true;

dojo.provide("dojox.storage.GearsStorageProvider");

dojo.require("dojo.gears");

dojo.require("dojox.storage.Provider");

dojo.require("dojox.storage.manager");

dojo.require("dojox.sql");

if(dojo.gears.available){

(function(){

dojo.declare("dojox.storage.GearsStorageProvider",dojox.storage.Provider,{constructor:function(){

},TABLE_NAME:"__DOJO_STORAGE",initialized:false,_available:null,_storageReady:false,initialize:function(){

if(dojo.config["disableGearsStorage"]==true){

return;

}

this.TABLE_NAME="__DOJO_STORAGE";

this.initialized=true;

dojox.storage.manager.loaded();

},isAvailable:function(){

return this._available=dojo.gears.available;

},put:function(_1,_2,_3,_4){

this._initStorage();

if(!this.isValidKey(_1)){

throw new Error("Invalid key given: "+_1);

}

_4=_4||this.DEFAULT_NAMESPACE;

if(!this.isValidKey(_4)){

throw new Error("Invalid namespace given: "+_1);

}

if(dojo.isString(_2)){

_2="string:"+_2;

}else{

_2=dojo.toJson(_2);

}

try{

dojox.sql("DELETE FROM "+this.TABLE_NAME+" WHERE namespace = ? AND key = ?",_4,_1);

dojox.sql("INSERT INTO "+this.TABLE_NAME+" VALUES (?, ?, ?)",_4,_1,_2);

}

catch(e){

_3(this.FAILED,_1,e.toString(),_4);

return;

}

if(_3){

_3(dojox.storage.SUCCESS,_1,null,_4);

}

},get:function(_5,_6){

this._initStorage();

if(!this.isValidKey(_5)){

throw new Error("Invalid key given: "+_5);

}

_6=_6||this.DEFAULT_NAMESPACE;

if(!this.isValidKey(_6)){

throw new Error("Invalid namespace given: "+_5);

}

var _7=dojox.sql("SELECT * FROM "+this.TABLE_NAME+" WHERE namespace = ? AND "+" key = ?",_6,_5);

if(!_7.length){

return null;

}else{

_7=_7[0].value;

}

if(dojo.isString(_7)&&(/^string:/.test(_7))){

_7=_7.substring("string:".length);

}else{

_7=dojo.fromJson(_7);

}

return _7;

},getNamespaces:function(){

this._initStorage();

var _8=[dojox.storage.DEFAULT_NAMESPACE];

var rs=dojox.sql("SELECT namespace FROM "+this.TABLE_NAME+" DESC GROUP BY namespace");

for(var i=0;i<rs.length;i++){

if(rs[i].namespace!=dojox.storage.DEFAULT_NAMESPACE){

_8.push(rs[i].namespace);

}

}

return _8;

},getKeys:function(_9){

this._initStorage();

_9=_9||this.DEFAULT_NAMESPACE;

if(!this.isValidKey(_9)){

throw new Error("Invalid namespace given: "+_9);

}

var rs=dojox.sql("SELECT key FROM "+this.TABLE_NAME+" WHERE namespace = ?",_9);

var _a=[];

for(var i=0;i<rs.length;i++){

_a.push(rs[i].key);

}

return _a;

},clear:function(_b){

this._initStorage();

_b=_b||this.DEFAULT_NAMESPACE;

if(!this.isValidKey(_b)){

throw new Error("Invalid namespace given: "+_b);

}

dojox.sql("DELETE FROM "+this.TABLE_NAME+" WHERE namespace = ?",_b);

},remove:function(_c,_d){

this._initStorage();

if(!this.isValidKey(_c)){

throw new Error("Invalid key given: "+_c);

}

_d=_d||this.DEFAULT_NAMESPACE;

if(!this.isValidKey(_d)){

throw new Error("Invalid namespace given: "+_c);

}

dojox.sql("DELETE FROM "+this.TABLE_NAME+" WHERE namespace = ? AND"+" key = ?",_d,_c);

},putMultiple:function(_e,_f,_10,_11){

this._initStorage();

if(!this.isValidKeyArray(_e)||!_f instanceof Array||_e.length!=_f.length){

throw new Error("Invalid arguments: keys = ["+_e+"], values = ["+_f+"]");

}

if(_11==null||typeof _11=="undefined"){

_11=dojox.storage.DEFAULT_NAMESPACE;

}

if(!this.isValidKey(_11)){

throw new Error("Invalid namespace given: "+_11);

}

this._statusHandler=_10;

try{

dojox.sql.open();

dojox.sql.db.execute("BEGIN TRANSACTION");

var _12="REPLACE INTO "+this.TABLE_NAME+" VALUES (?, ?, ?)";

for(var i=0;i<_e.length;i++){

var _13=_f[i];

if(dojo.isString(_13)){

_13="string:"+_13;

}else{

_13=dojo.toJson(_13);

}

dojox.sql.db.execute(_12,[_11,_e[i],_13]);

}

dojox.sql.db.execute("COMMIT TRANSACTION");

dojox.sql.close();

}

catch(e){

if(_10){

_10(this.FAILED,_e,e.toString(),_11);

}

return;

}

if(_10){

_10(dojox.storage.SUCCESS,_e,null,_11);

}

},getMultiple:function(_14,_15){

this._initStorage();

if(!this.isValidKeyArray(_14)){

throw new ("Invalid key array given: "+_14);

}

if(_15==null||typeof _15=="undefined"){

_15=dojox.storage.DEFAULT_NAMESPACE;

}

if(!this.isValidKey(_15)){

throw new Error("Invalid namespace given: "+_15);

}

var _16="SELECT * FROM "+this.TABLE_NAME+" WHERE namespace = ? AND "+" key = ?";

var _17=[];

for(var i=0;i<_14.length;i++){

var _18=dojox.sql(_16,_15,_14[i]);

if(!_18.length){

_17[i]=null;

}else{

_18=_18[0].value;

if(dojo.isString(_18)&&(/^string:/.test(_18))){

_17[i]=_18.substring("string:".length);

}else{

_17[i]=dojo.fromJson(_18);

}

}

}

return _17;

},removeMultiple:function(_19,_1a){

this._initStorage();

if(!this.isValidKeyArray(_19)){

throw new Error("Invalid arguments: keys = ["+_19+"]");

}

if(_1a==null||typeof _1a=="undefined"){

_1a=dojox.storage.DEFAULT_NAMESPACE;

}

if(!this.isValidKey(_1a)){

throw new Error("Invalid namespace given: "+_1a);

}

dojox.sql.open();

dojox.sql.db.execute("BEGIN TRANSACTION");

var _1b="DELETE FROM "+this.TABLE_NAME+" WHERE namespace = ? AND key = ?";

for(var i=0;i<_19.length;i++){

dojox.sql.db.execute(_1b,[_1a,_19[i]]);

}

dojox.sql.db.execute("COMMIT TRANSACTION");

dojox.sql.close();

},isPermanent:function(){

return true;

},getMaximumSize:function(){

return this.SIZE_NO_LIMIT;

},hasSettingsUI:function(){

return false;

},showSettingsUI:function(){

throw new Error(this.declaredClass+" does not support a storage settings user-interface");

},hideSettingsUI:function(){

throw new Error(this.declaredClass+" does not support a storage settings user-interface");

},_initStorage:function(){

if(this._storageReady){

return;

}

if(!google.gears.factory.hasPermission){

var _1c=null;

var _1d=null;

var msg="This site would like to use Google Gears to enable "+"enhanced functionality.";

var _1e=google.gears.factory.getPermission(_1c,_1d,msg);

if(!_1e){

throw new Error("You must give permission to use Gears in order to "+"store data");

}

}

try{

dojox.sql("CREATE TABLE IF NOT EXISTS "+this.TABLE_NAME+"( "+" namespace TEXT, "+" key TEXT, "+" value TEXT "+")");

dojox.sql("CREATE UNIQUE INDEX IF NOT EXISTS namespace_key_index"+" ON "+this.TABLE_NAME+" (namespace, key)");

}

catch(e){

throw new Error("Unable to create storage tables for Gears in "+"Dojo Storage");

}

this._storageReady=true;

}});

dojox.storage.manager.register("dojox.storage.GearsStorageProvider",new dojox.storage.GearsStorageProvider());

})();

}

}