Type.registerNamespace('Legacy.LMW.Platform.Controls');

Legacy.LMW.Platform.Controls.DirtyPanelExtenderBehavior = function(element) {
    Legacy.LMW.Platform.Controls.DirtyPanelExtenderBehavior.initializeBase(this, [element]);
    this._OnLeaveMessageValue = null;
}

Legacy.LMW.Platform.Controls.DirtyObject = function(type, control, newvalue, oldvalue) {
    this.type = type;
    this.control = control;
    this.oldvalue = oldvalue;
    this.newvalue = newvalue;
}

Legacy.LMW.Platform.Controls.DirtyPanelExtenderBehavior.prototype = {

    isDirty : function() {
        var dirty;
        dirty = this.getDirty();
        return dirty.length > 0;
    },

    getDirty : function() {
        var result = new Array()
        var values_control = document.getElementById(this.get_element().id + "_Values");
        var values = values_control["value"].split(",");
        for (i in values) {
            var namevalue = values[i];
            var namevaluepair = namevalue.split(":");
            var name = namevaluepair[0];
            var value = (namevaluepair.length > 1 ? namevaluepair[1] : "");
            var control = document.getElementById(name);
            if (control == null) continue;
            // alert(control.id + " -> " + control.type);
            if (control.type == 'checkbox' || control.type == 'radio') {
                var boolvalue = (value == "true" ? true : false);
                if(control.checked != boolvalue) {
                    result[result.length] = new Legacy.LMW.Platform.Controls.DirtyObject("checkbox", control, control.checked, boolvalue);
                }
            } else if (control.type == 'select-one' || control.type == 'select-multiple') {
               if (namevaluepair.length > 2) {
                   if ( control.options.length > 0) {
                       // control is listbox
                       // there's data:value and selection:value
                       var code = value;
                       value = (namevaluepair.length > 2 ? namevaluepair[2] : "");
                       var optionValues = "";
                       // concat all listbox items
                       for( var cnt = 0; cnt < control.options.length; cnt++) {
                          if (code == 'data') {
                              optionValues += control.options[cnt].text;
                          } else if (code == 'selection') {
                              optionValues += control.options[cnt].selected;
                          }
                          optionValues += "\r\n";
                       }
                       if( encodeURIComponent(optionValues) != value ) {
                          // items in the listbox have changed
                          result[result.length] = new Legacy.LMW.Platform.Controls.DirtyObject("listbox", control, encodeURIComponent(optionValues), value);
                       }
                   }
               } else if(control.selectedIndex != value) {
                   result[result.length] = new Legacy.LMW.Platform.Controls.DirtyObject("dropdown", control, control.selectedIndex, value);
               }
            } else {
                var controlValue = encodeURIComponent(control.value);
                // Replace any CRLF with LF only to avoid multi-line values being mistakenly flagged as changed.
                var regex = /%0D%0A/g  // CRLF
                controlValue = controlValue.replace(regex, "%0A");
                value = value.replace(regex, "%0A");                
                if(controlValue != value) {
                    result[result.length] = new Legacy.LMW.Platform.Controls.DirtyObject(control.type, control, controlValue, value);
                }
            }
        }        
        return result;
    },
    
    initialize : function() {        
        Legacy.LMW.Platform.Controls.DirtyPanelExtenderBehavior.callBaseMethod(this, 'initialize');
        DirtyPanelExtender_dirtypanels[DirtyPanelExtender_dirtypanels.length] = this;
    },

    dispose : function() {
        Legacy.LMW.Platform.Controls.DirtyPanelExtenderBehavior.callBaseMethod(this, 'dispose');
    },

    get_OnLeaveMessage : function() {
        return this._OnLeaveMessageValue;
    },

    set_OnLeaveMessage : function(value) {
        this._OnLeaveMessageValue = value;
    },
    
    toString : function() {
        var result = this.get_element().id + ":";
        var dirty = this.getDirty();
        if (dirty.length == 0) {
            result = result + "clean";
        } else {
            for (i in dirty) {
               result = result + "\n" + dirty[i].control.id + " (" + dirty[i].type + ") - [" 
                + dirty[i].oldvalue + "][" + dirty[i].newvalue + "]"; 
            }
        }
        return result;
    }
}

Legacy.LMW.Platform.Controls.DirtyPanelExtenderBehavior.registerClass('Legacy.LMW.Platform.Controls.DirtyPanelExtenderBehavior', AjaxControlToolkit.BehaviorBase);

var DirtyPanelExtender_dirtypanels = new Array()

function DirtyPanelExtender_SuppressDirtyCheck()
{
  window.onbeforeunload = null;
}

function DirtyPanelExtender_EnableDirtyCheck()
{
    window.onbeforeunload = function () 
    {
        for (i in DirtyPanelExtender_dirtypanels)
        {
            var panel = DirtyPanelExtender_dirtypanels[i];
            if(typeof DirtyPanelIsDirtyOverride == 'function') {
                if (DirtyPanelIsDirtyOverride())
                {
                  return panel.get_OnLeaveMessage();
                }
            }
            if (panel.isDirty()) 
            {
              //Uncomment for debugging
              //alert(panel.toString());
              return panel.get_OnLeaveMessage();
            }
        }
    }
}

function DirtyPanelExtender_IsDirtyCheck()
{
    DirtyPanelExtender_SuppressDirtyCheck();
    var returnValue = true;
    for (i in DirtyPanelExtender_dirtypanels)
    {
        var panel = DirtyPanelExtender_dirtypanels[i];
        if(typeof DirtyPanelIsDirtyOverride == 'function') {
            if (DirtyPanelIsDirtyOverride())
            {
                returnValue = confirm("Are you sure you want to navigate away from the page?\n\n" + panel.get_OnLeaveMessage() + "\n\n Press OK to continue, or Cancel to stay on the current page.");
                break;
            }
        }
        if (panel.isDirty()) 
        {
            returnValue = confirm("Are you sure you want to navigate away from the page?\n\n" + panel.get_OnLeaveMessage() + "\n\n Press OK to continue, or Cancel to stay on the current page.");
            break;
        }
    }
    if (returnValue == false)
    {
        DirtyPanelExtender_EnableDirtyCheck();
    }
    return returnValue;
}

//The following code does not work correctly in IE. Link buttons suppress the dirty check as they should in FF but not in IE.
/*
function __newDoPostBack(eventTarget, eventArgument) 
{ 
  // supress prompting on postback
  DirtyPanelExtender_SuppressDirtyCheck();
  return __savedDoPostBack (eventTarget, eventArgument);
}

var __savedDoPostBack = __doPostBack;
__doPostBack = __newDoPostBack; 
*/

DirtyPanelExtender_EnableDirtyCheck();
if(typeof(Sys)!=='undefined')Sys.Application.notifyScriptLoaded();