/**
 * Project   : AMDA-NG
 * Name      : TimeTableUI.js
 * @class 	 amdaUI.TimeTableUI

 * @extends    Ext.container.Container

 * @brief	 Time Table Module UI definition (View)
 * @author 	 Myriam
 * @version  $Id: TimeTableUI.js 2075 2014-02-11 11:30:14Z elena $

 */

Ext.define('amdaUI.TimeTableUI', {
	extend: 'Ext.container.Container',
	alias: 'widget.panelTimeTable',
	
	requires: [

		'Ext.ux.grid.FiltersFeature',
		'Ext.ux.grid.filter.DateFilter',
		'Ext.ux.grid.filter.NumericFilter',
		'amdaUI.OperationsTT',
		'amdaUI.StatisticalPlug',
		'Ext.grid.plugin.BufferedRenderer'

	],
	
	statics: {

		COL_TO_HIDE : 'colToHide'
	},

	status: null,

    
	constructor: function(config) {          	 
		this.init(config);
	 	this.callParent(arguments);
	 	// load object into view
	 	this.loadObject();
	},

	/**
	 * set the current editing object
	 * this method will be used on timetable edition when this win is already opened
	 */

	setObject : function (object) 
	{

		// set object
		this.object = object;
		
		// load object into view
		this.loadObject();
        
		// show the default duration column

		this.TTGrid.headerCt.getGridColumns();
		

		Ext.Array.each(this.TTGrid.headerCt.getGridColumns(), function(item,index,all){
			// if item is the default duration column
			if ( item.id == amdaUI.TimeTableUI.COL_TO_HIDE+'2' ) {
				// show this column
				item.show();
			}
		});    
        // fire the refresh event (to statistical plugin)
        this.fireEvent("refresh");
	// global event
	myDesktopApp.EventManager.fireEvent("refresh");
	},
	
	/**
	 * load object timetable into this view
	 */
	loadObject : function(){    
        // load object into form
        this.formPanel.getForm().loadRecord(this.object);
        
        this.status = null;
        
        //
        var me = this;
        
        var onAfterInit = function(result, e) {
        	if (!result || !result.success)
        	{
        		if (result.message)
        			myDesktopApp.errorMsg(result.message);
        		else
        			myDesktopApp.errorMsg('Unknown error during cache initialisation');
        		return;
        	}
        	
        	me.TTGrid.getSelectionModel().deselectAll();
        	        	
        	// clear filters
        	me.TTGrid.getStore().clearFilter(true);
        
    		//clear sort

        	me.TTGrid.getStore().sorters.clear();
        	//me.TTGrid.getStore().sorters = new Ext.util.MixedCollection();

        	
        	//set cache token to the Time Table object
        	me.object.set('cacheToken', result.token);

        	me.TTGrid.getStore().load();

        	
        	me.status = result.status;
        	
        	//Statistical plugin
        	me.fireEvent("refresh");
        };
        
        if (this.object.get('fromPlugin'))
        {
        	if (this.object.get('objFormat') && this.object.get('objFormat') != '')
        	{
        		//From uploaded file

        		AmdaAction.initTTCacheFromUploadedFile(this.object.get('objName'), this.object.get('objFormat'), false, onAfterInit);

        	}
        	else
        	{
        		//From tmp object (ie Search result)

        		AmdaAction.initTTCacheFromTmpObject(this.object.get('folderId'), this.object.get('objName'), false, onAfterInit);

        	}
        }
        else
        {
        	var typeTT = myDesktopApp.getLoadedModule(myDesktopApp.dynamicModules.tt.id).linkedNode.data.nodeType;
        	if (this.object.get('id') == '')
        	{
        		//Init empty cache

        		AmdaAction.initTTCache(false,0,onAfterInit);

        	}	
        	else
        	{
        		//From existing TT file
        		AmdaAction.initTTCacheFromTT(this.object.get('id'), typeTT, onAfterInit);
        	}
        }
	},

	/**
	* update this.object from form
	*/

	updateObject : function()
	{

		this.updateCount();
		
		// get the basic form

		var basicForm = this.formPanel.getForm();        
		var updateStatus = true;

		var fieldsWithoutName = basicForm.getFields().items;
		Ext.Array.each(fieldsWithoutName, function(item, index,allItems){
			if(item !== this.fieldName) { 		     
				if (!item.isValid()) {
					// set update isn't allowed
					updateStatus = false;    
				}
			}
		}, this);

		// if the update is allowed

		if (updateStatus) {
		/// real object update
		// update TimeTable object with the content of form
			basicForm.updateRecord(this.object);	
		}
		// return the update status
		return updateStatus;	    

	},	

	updateCount : function() 
	{

		this.object.set('nbIntervals',this.TTGrid.getStore().getTotalCount());
		this.formPanel.getForm().findField('nbIntervals').setValue(this.object.get('nbIntervals'));
	},
	
	/*	    
	 * save method called by Save button
	 */

	saveProcess : function(toRename)
	{

		var timeTableModule = myDesktopApp.getLoadedModule(myDesktopApp.dynamicModules.tt.id); 
	
		// if the name has been modified this is a creation
		if (timeTableModule.contextNode &&  (timeTableModule.contextNode.data.id == 'sharedtimeTable-treeRootNode'))
		{ 
			timeTableModule.linkedNode = null;	    		      
			timeTableModule.createLinkedNode();
			timeTableModule.createObject(this.object.getJsonValues());     
			var ttobj = timeTableModule.linkedNode.get('object');                                                    
			// synchronisation of objects
			this.object = ttobj;
			timeTableModule.linkedNode.create();
		}
		else  if (this.fclose()) /*TimeTable object has been modified*/
		{
			if (this.object.isModified('name') || this.object.get('fromPlugin')) 
			{			
				// if object already has an id : it's a 'rename' of an existing TimeTable
				if (this.object.get('id'))
				{
					// the context Node is the parent node of current edited one
					var contextNode = timeTableModule.linkedNode.parentNode;
					// link a new node to the TimeTableModule
					timeTableModule.createLinkedNode();
					// set the contextNode
					timeTableModule.linkedNode.set('contextNode',contextNode);
					// create a new object linked
					timeTableModule.createObject(this.object.getJsonValues());
					
					var ttobj = timeTableModule.linkedNode.get('object');                                                    
					// synchronisation of objects
					this.object = ttobj;
					
					if (toRename) timeTableModule.linkedNode.toRename = true;
				} 
				timeTableModule.linkedNode.create({callback : function ($action) {
					if (timeTableModule.linkedNode.get('object').get('fromPlugin'))
						timeTableModule.linkedNode.get('object').set('fromPlugin',false);
					timeTableModule.linkedNode.update();}, 
					scope : this});
			} else {
				//update
				timeTableModule.linkedNode.update();
			}
		}

	},
	
	/**
	 * overwrite metod called by Save button
	 */

	overwriteProcess : function(btn)
	{	

		if (btn == 'cancel') return;
           

		this.fieldName.clearInvalid();

		this.saveProcess(true);		
		
	},
	

	addInterval : function(start, stop) 
	{

		var row = this.TTGrid.getStore().getTotalCount();
		var me = this;

		this.TTGrid.getSelectionModel().deselectAll();

		AmdaAction.addTTCacheInterval({'start' : start, 'stop' : stop, 'index' : row},function (result, e) {
			this.status = result.status;
        	this.TTGrid.getStore().reload({
        		callback : function(records, options, success) {
        			me.TTGrid.getView().bufferedRenderer.scrollTo(row, false, function() {
        				me.TTGrid.getView().select(row);
        			}, me);
        		}
        	});

		}, this);

	},
	

	init : function(config) 
	{	    

	    this.object =   config.object;
	     
	    this.fieldName = new Ext.form.field.Text({
                fieldLabel: 'Name*',
                allowBlank : false,
                stripCharsRe: /(^\s+|\s+$)/g,
                emptyText: 'Please no spaces!',
                name: 'name',
                anchor: '100%',
                validateOnChange: false,
                validateOnBlur: false,
                validFlag: false,
	            validator : function() {
	            	return this.validFlag;
	            }
	    });
	    
	    this.formPanel = new Ext.form.Panel({
            bodyStyle: {background : '#dfe8f6'},
            id: 'formTimeTable',
            flex: 4,
            model : 'amdaModel.TimeTable',
            trackResetOnLoad : true, // reset to the last loaded record
            border : false,
            fieldDefaults: { labelWidth: 80 },
            items: [
                this.fieldName,      
                {
                    xtype: 'fieldcontainer',
                    layout: 'hbox',
                    fieldLabel:'Creation date',
                    items: [
                        {

                            xtype:'datefield', width: 180, 

                            name: 'created', disabled: true, 
                            hideTrigger: true, format: 'Y/m/d H:i:s'
                        },
                        { xtype:'component', width: 20 },
                        { xtype:'displayfield', value: 'Intervals:', width: 50 },
                        { xtype:'component', width: 8 },

                        { xtype:'textfield', name: 'nbIntervals', disabled: true, width: 70 }

                    ]                                                                       
                },
                {
                    xtype: 'textarea',
                    name: 'description',
                    fieldLabel: 'Description',
                    anchor: '100% 50%'
                },
                {
                    xtype: 'textarea',
                    name: 'history',
                    fieldLabel: 'Operation log',
                    anchor: '100% 30%'
                }
            ]

        });
	    
	    var store = Ext.create('Ext.data.Store', {
	        model: 'amdaModel.Interval',
	        autoDestroy: false,
	        pageSize : 200,
		  buffered : true,
	      autoLoad: true,
	      purgePageCount: 0,
	 	remoteSort: true,
	        listeners: { 
	            load: function(store,records) {
	            	
 	              //  alert('nb of records in store:'+records.length );          
                        myDesktopApp.EventManager.fireEvent('refresh');
                        this.TTGrid.getView().refresh();
                        this.TTGrid.getSelectionModel().refresh();
                        this.updateCount();
                        //Statistical plugin
             		   	this.fireEvent("refresh");
	            },
	            prefetch : function(store, records, successful, operation, eOpts) {
	            	if (operation && (operation.action == 'read'))
	            	{
	            		if (operation.response && operation.response.result && operation.response.result.success)
	            			this.status = operation.response.result.status;
	            	}
	            },
	            remove: function(store) {
	            	this.updateCount();
	            	//Statistical plugin
         		   	this.fireEvent("refresh");
	            },
	            add:  function(store) {
	            	this.updateCount();
	            	//Statistical plugin
         		   	this.fireEvent("refresh");
	            },
	            datachanged: function(store){
	            	this.updateCount();
	            	//Statistical plugin
         		   	this.fireEvent("refresh");
	    		},
	            scope : this
	        } 
	    });      
     
	    var filters = {
	        ftype: 'filters',
	        encode: true, // json encode the filter query
	        local: false,   // defaults to false (remote filte
	        filters: [
                { type: 'numeric', dataIndex: 'durationHour'},
                { type: 'numeric', dataIndex: 'durationMin'},  
                { type: 'numeric', dataIndex: 'durationSec'},  		     
                { type: 'date', dataIndex: 'start',  dateFormat: 'Y-m-d'},
                { type: 'date', dataIndex: 'stop',  dateFormat: 'Y-m-d' }
            ]
	    };  

	    var cellEditing = Ext.create('Ext.grid.plugin.CellEditing',{
	    		onEditComplete : function(ed, value, startValue) {
	    	        var me = this,
	    	            activeColumn = me.getActiveColumn(),
	    	            context = me.context,
	    	            record;

	    	        if (activeColumn) {
	    	            record = context.record;

	    	            me.setActiveEditor(null);
	    	            me.setActiveColumn(null);
	    	            me.setActiveRecord(null);
	    	    
	    	            context.value = value;
	    	            if (!me.validateEdit()) {
	    	                me.editing = false;
	    	                return;
	    	            }

	    	            // Only update the record if the new value is different than the
	    	            // startValue. When the view refreshes its el will gain focus
	    	            if (!record.isEqual(value, startValue)) {
	    	            	var obj = null;
	    	            	if (activeColumn.dataIndex == 'start')
	    	            		obj = {
	    	            			'cacheId' : record.get('cacheId'),
	    	            			'start'   : value
	    	            		};
	    	            	else if (activeColumn.dataIndex == 'stop')
	    	            		obj = {
	    	            			'cacheId' : record.get('cacheId'),
	    	            			'stop'   : value
	    	            		};
	    	            	else
	    	            	{
	    	            		me.editing = false;
		    	                return;
	    	            	}
	    	            		
	    	            	//context.grid.getSelectionModel().deselectAll();
	    	            	//Interval is modified on the server side

	    	            	me.editing = true;
	    	            	

	    	            	AmdaAction.modifyTTCacheInterval(obj, function (result, e) {

	    	            		var ttModule = myDesktopApp.getLoadedModule(myDesktopApp.dynamicModules.tt.id);
                    			if (ttModule)
                    				ttModule.getUiContent().status = result.status;

                    			context.grid.getSelectionModel().deselectAll();

	    	            		context.store.reload({
	                        		callback : function(records, options, success) {

	                        			context.view.bufferedRenderer.scrollTo(context.rowIdx, true, function() {
	                        				me.fireEvent('edit', me, context);

	                        				me.editing = false;

	                        			}, me);	    	            
	                        		}
	                        	});
	                        }, this);
	    	            }

	    	            else
	    	            	me.editing = false;

	    	        }
	    	    }
	    
	    });

	    this.TTGrid =  Ext.create('Ext.grid.Panel', {
	        store : store,
	        features: [filters],
	        columnLines: true,
	        columns: [ 
                {
                	xtype: 'rownumberer',
                	width: 50,
                	renderer: function(value, metaData, record, row, col, store, gridView){
                		var msg = record.index;
                		if (record.get('isNew') || record.get('isModified'))
                		{
                			msg += ' *';
                			metaData.style = 'font-weight: bold'
                		}
               	      	return msg;
                    }
                },
                {   
                    header: 'Start Time', dataIndex: 'start',  width: 120,
                    editor: { xtype:'datefield', allowBlank:false, hideTrigger: true,  format : 'Y-m-d\\TH:i:s'},                              
                    renderer: function(value){  
                        if (value != null) {
                            if(Ext.isDate(value)){
                                return Ext.Date.format(value, 'Y-m-d\\TH:i:s');
                            } else {
                                return Ext.Date.format(new Date (value), 'Y-m-d\\TH:i:s');
                            }
                        } else {
                            return value;
                        }
                    }
                },
                {  
                    header: 'Stop Time', dataIndex: 'stop', width: 120, 
                    editor: { xtype: 'datefield', allowBlank: false, hideTrigger: true,  format : 'Y-m-d\\TH:i:s'},
                    renderer: function(value) {
                        if (value != null) {
                            if(Ext.isDate(value)){
                                return Ext.Date.format(value, 'Y-m-d\\TH:i:s');
                            } else {
                                return Ext.Date.format(new Date (value), 'Y-m-d\\TH:i:s');
                            }
                        } else {
                            return value;
                        }
                    }
                },                             
                {
                    header: 'Duration (hour)',  width: 120, dataIndex: 'durationHour',
                    id: amdaUI.TimeTableUI.COL_TO_HIDE+'1',
                    hidden: true,
                    renderer: function(value) {
                        return Ext.util.Format.number(value,'0.00');
                    },
                    listeners: {
                        beforeshow : function(){
                            Ext.Array.each(this.ownerCt.getGridColumns(), function(item,index,all){
                                // if item is a column to hide automatically
                                if ( Ext.util.Format.substr(item.id, 0, amdaUI.TimeTableUI.COL_TO_HIDE.length) == amdaUI.TimeTableUI.COL_TO_HIDE ) {
                                    // if item isn't the column which is being declared and is not hidden
                                    if ( item.id != amdaUI.TimeTableUI.COL_TO_HIDE+'1' && !item.isHidden() ){
                                        // hide this column
                                        item.hide();
                                    }
                                }
                            });
                        }
                    }
                },                             
                {
                	header: 'Duration (min)',  width: 120, dataIndex: 'durationMin',
                	id: amdaUI.TimeTableUI.COL_TO_HIDE+'2',
                	renderer: function(value) {
                		return Ext.util.Format.number(value,'0.00');
                	},
                    listeners: {
                        beforeshow : function(){
                            Ext.Array.each(this.ownerCt.getGridColumns(), function(item,index,all){
                                // if item is a column to hide automatically
                                if ( Ext.util.Format.substr(item.id, 0, amdaUI.TimeTableUI.COL_TO_HIDE.length) == amdaUI.TimeTableUI.COL_TO_HIDE ) {
                                    // if item isn't the column which is being declared and is not hidden
                                    if ( item.id != amdaUI.TimeTableUI.COL_TO_HIDE+'2' && !item.isHidden() ){
                                        // hide this column
                                        item.hide();
                                    }
                                }
                            });
                        }
                    }
                },                             
                {
                    header: 'Duration (sec)',  width: 120, dataIndex: 'durationSec',
                    id: amdaUI.TimeTableUI.COL_TO_HIDE+'3',
                    hidden: true,
                    renderer: function(value) {
                        return Ext.util.Format.number(value,'0.00');
                    },
                    listeners: {
                        beforeshow : function(){
                            Ext.Array.each(this.ownerCt.getGridColumns(), function(item,index,all){
                                // if item is a column to hide automatically
                                if ( Ext.util.Format.substr(item.id, 0, amdaUI.TimeTableUI.COL_TO_HIDE.length) == amdaUI.TimeTableUI.COL_TO_HIDE ) {
                                    // if item isn't the column which is being declared and is not hidden
                                    if ( item.id != amdaUI.TimeTableUI.COL_TO_HIDE+'3' && !item.isHidden() ){
                                        // hide this column
                                        item.hide();
                                    }
                                }
                            });
                        }
                    }
                }
            ], 
            frame: true,
            dockedItems: [{
                xtype: 'toolbar', 
                items: [{
                    iconCls: 'icon-add',
                    scope: this,
                    handler: function(){
                        cellEditing.cancelEdit();
                        
                        var selection = this.TTGrid.getView().getSelectionModel().getSelection()[0];
                        var row = 0;
                        if (selection)
                        	row = store.indexOf(selection) + 1;

                        this.TTGrid.getSelectionModel().deselectAll();

                        
                        var me = this;
                        AmdaAction.addTTCacheInterval({'index' : row}, function (result, e) {
                        	this.status = result.status;
                        	this.TTGrid.getStore().reload({
                        		callback : function(records, options, success) {
                        			me.TTGrid.getView().bufferedRenderer.scrollTo(row, false, function() {

                        				me.TTGrid.getView().select(row);

                        				cellEditing.startEditByPosition({row: row, column: 1});	
                        			}, me);	
                        		}
                        	});
                        }, this);
                    }
                }, {
                    iconCls: 'icon-delete',
                    disabled: true,
                    itemId: 'delete',
                    scope: this,
                    handler:  function(){
                        var selection = this.TTGrid.getView().getSelectionModel().getSelection()[0];
                        if (selection) {
                        	var rowId = selection.get('cacheId');

                        	this.TTGrid.getSelectionModel().deselectAll();

                        	AmdaAction.removeTTCacheIntervalFromId(rowId, false, function (result, e) {

                        		this.status = result.status;
                            	this.TTGrid.getStore().reload();
                            }, this);
                        }
                    }
                },
                '->',
                {
                    text: 'Clear Filters',
                    scope: this,
                    handler: function () {
                    	this.TTGrid.getStore().clearFilter(true);
                    } 
                }
                ] 
            }],
            plugins: [ cellEditing, {ptype : 'bufferedrenderer'} ],
            listeners : {
                scope : this,
                edit : function(editor,e) { 
                    if (e.record.get('stop') != null && e.record.get('start') != null) {
                        e.record.set('durationHour', (e.record.get('stop') - e.record.get('start'))/3600000.0);
                        e.record.set('durationMin', (e.record.get('stop') - e.record.get('start'))/60000.0);
                        e.record.set('durationSec', (e.record.get('stop') - e.record.get('start'))/1000.0);
                        //  send refresh event to statistical plugin
                        this.fireEvent("refresh");
                    }
                }
            }
	    });

	    this.TTGrid.getSelectionModel().on('selectionchange', function(selModel,selections){
	        this.TTGrid.down('#delete').setDisabled(selections.length === 0); 
        }, this);
    	
	    var myConf = {
	        layout: 'border',
	        defaults: { layout: 'fit', border: false },
	        items : [
                {
                    xtype: 'form',
                    region: 'center',
                    buttonAlign: 'left',
                    bodyStyle: {background : '#dfe8f6'},
                    padding: '5 5 5 5',
                    layout: {type: 'hbox', pack: 'start', align: 'stretch'},	
                    items: [						        	        	        
                        {
                            xtype: 'container',
                            flex: 3.6,
                            layout: {type: 'vbox', pack: 'start', align: 'stretch'},
                            items: [
                                this.formPanel,
                                {
                                    xtype: 'operationsTT',
                                    parent: this,
                                    flex: 2.5,
                                    id: 'operation'
                                }
                            ]      
                        }, 
                        {						        	        	        	
                            xtype: 'container',
                            border: false,
                            padding: '0 0 5 15',
                            flex: 4,					
                            layout: 'fit',
                            items: [ this.TTGrid ] 					        	        
                        }
                    ],
                    fbar:[
                        {   
                            xtype: 'button',
                            text: 'Save',
                            width: 65,
                            scope : this,
                            handler: function () {
                            	if (this.updateObject()){
                            		var basicForm = this.formPanel.getForm();      
                            		// if there's at least one record in the store of TTGrid
                            		if (this.TTGrid.getStore().getTotalCount()>0) {
                            			// update TimeTable object which the content of form
                            			basicForm.updateRecord(this.object);

                            			var me = this;
                            			this.checkIntervalsStatusForSave(function () {
                            				//Name validation
                            				var ttModule = myDesktopApp.getLoadedModule(myDesktopApp.dynamicModules.tt.id);	
                            				if (!ttModule)
                            					return;
                            				ttModule.linkedNode.isValidName(me.fieldName.getValue(), function (res) {
        			                    		if (!res)
        			                    		{
        			                    			me.fieldName.validFlag = 'Error during object validation';
        			                    			myDesktopApp.errorMsg(me.fieldName.validFlag);
        			                    			me.fieldName.validate();
        			                    			return;
        			                    		}
        									  
        			                    		if (!res.valid)
        			                    		{
        			                    			if (res.error)
        			                    			{
        			                    				if (res.error.search('subtree') != -1) {  							
        			                    					Ext.MessageBox.show({title:'Warning', 
        			                    						msg: res.error+'<br/>Do you want to overwrite it?',
        			                    						width: 300,
        			                    						buttons: Ext.MessageBox.OKCANCEL, 
        			                    						fn : me.overwriteProcess,
        			                    						icon: Ext.MessageBox.WARNING,
        			                    						scope : me
        			                    					});
        			                    					me.fieldName.validFlag = true;
        			                    				}
        			                    				else
        			                    					me.fieldName.validFlag = res.error;
        			                    			}
        			                    			else
        			                    			{
        			                    				me.fieldName.validFlag = 'Invalid object name';
        			                    				myDesktopApp.errorMsg(me.fieldName.validFlag);
        			                    			}
        			                    			me.fieldName.validate();
        			                    			return;
        			                    		}
        									  
        			                    		me.fieldName.validFlag = true;
        			                    		me.fieldName.validate();
        			                    		me.saveProcess(false);
        			                    	});
                            			});                            
  				              } else {
  				                // warning:
  				                Ext.Msg.alert('No intervals', 'Your time table is invalid, <br>you must have at least one interval');
  				              }
                                        }
                           }                                  
                        },{ 
                            xtype: 'button',
                            text: 'Reset',
                            width: 65,
                            scope: this,
                            handler: function() {
	                        	var ttModule = myDesktopApp.getLoadedModule(myDesktopApp.dynamicModules.tt.id);			
	    					    ttModule.createLinkedNode();
	    					    ttModule.createObject();
	    					    this.setObject(ttModule.getLinkedNode().get('object'));
                            }
                        }, 
                        {
                            xtype: 'button',
                            text: 'Share',
                            scope: this,
                            width: 65,
                            disabled: true,
                            handler: function () {}
                        }
                    ]
                },                              
                {
		  xtype: 'panel', region: 'south',
		  title: 'Information',
		  collapsible: true,
		  height: 100,
		  autoHide: false,
		  iconCls: 'icon-information',
		  bodyStyle: 'padding:5px',
		  loader: {
		    autoLoad: true,
		    url: helpDir+'timetableHOWTO'
		  }	 		    
                }
            ],
            plugins: [ {ptype: 'statisticalPlugin'} ]                   
	    };
	    
	    Ext.apply (this , Ext.apply (arguments, myConf));	    	    
	},
	
	checkIntervalsStatusForSave : function(onStatusOk) {
		if (this.status == null)
			return;
		
		if (this.status.nbValid <= 0)
		{
			myDesktopApp.errorMsg('Your time table is invalid, <br>you must have at least one valid interval');
			return;
		}
		
		var msg = '';
		if (this.status.nbInvalid > 0)
			msg += 'There are some invalid intervals. Only valid intervals will be saved!<br/>';
		if (this.status.nbFiltered > 0)
			msg += 'There are some filtered intervals. Filtered intervals will not be saved!<br/>';
		if (msg != '')
		{
			msg += 'Do you want to continue?';
			Ext.Msg.show({
				title:'Warning!',
				msg: msg,
				buttons: Ext.Msg.OKCANCEL,
				fn: function(btnId){
					if (btnId==='cancel'){
						// cancel the save action
					} else {
						onStatusOk();
					}
				},
				scope: this,
				icon: Ext.Msg.WARNING
			});
			return;
		}
		
		onStatusOk();
	},
	
	/**
	 * Check if changes were made before closing window 
	 * @return true if changes
	 */	
	fclose : function() {
		if (this.status == null)
			return false;
		
		var isDirty = this.formPanel.getForm().isDirty() || (this.status.isModified) || (this.status.nbModified > 0) || (this.status.nbNew > 0);
		return isDirty;
	}
});