// (c) Copyright Microsoft Corporation.
// This source is subject to the Microsoft Permissive License.
// See http://www.microsoft.com/resources/sharedsource/licensingbasics/sharedsourcelicenses.mspx.
// All other rights reserved.


/// <reference name="MicrosoftAjax.debug.js" />
/// <reference name="MicrosoftAjaxTimer.debug.js" />
/// <reference name="MicrosoftAjaxWebForms.debug.js" />
/// <reference path="../ExtenderBase/BaseScripts.js" />
/// <reference path="../Common/Common.js" />


Type.registerNamespace('AjaxControlToolkit');

AjaxControlToolkit.PasswordStrengthExtenderBehavior = function(element) {
    AjaxControlToolkit.PasswordStrengthExtenderBehavior.initializeBase(this, [element]);

    // The array holding the default textual descriptions for the password strength levels
    this._levelArray = new Array();
    this._styleArray = new Array();
    
    this._txtPwdStrengthCssClass = null;
    this._barBorderCssClass = null;
    this._barIndicatorCssClass = null;
    this._displayPosition = AjaxControlToolkit.DisplayPosition.RightSide;
    this._strengthIndicator = AjaxControlToolkit.StrengthIndicatorTypes.Text;
    
    this._preferredPasswordLength = 0;
    this._minimumNumericCharacters = 0;
    this._minimumSymbolCharacters = 0;
    this._requiresUpperAndLowerCaseCharacters = false;
    this._helpHandleCssClass = '';
    this._helpHandlePosition =  AjaxControlToolkit.DisplayPosition.AboveRight;
    this._helpText = '';
    this._helpStatusLabelID = null;
    
    this._displayDiv = null; // The DIV for displaying the textual indicator
    this._helpDiv = null;  // The DIV that the user can click on to display the password requirements
    
    this._barOuterDiv = null;  // The outer DIV for the bar indicator
    this._barInnerDiv = null;  // The Inner DIV for the bar indicator
    
    this._keyPressHandler = null;
    this._blurHandler = null;
    this._helpClickHandler = null;
    this._prefixText = AjaxControlToolkit.Resources.PasswordStrength_StrengthPrompt;
    
    // The default set of textual strength descriptions
    this._txtStrengthDescriptions = AjaxControlToolkit.Resources.PasswordStrength_DefaultStrengthDescriptions;
    this._strengthStyles = '';
    this._barIndicatorStyles = '';
    this._txtseparator = ';';
    this._MIN_TXT_LEVEL_COUNT = 2;
    this._MAX_TXT_LEVEL_COUNT = 10;
    
    // The default weighting/ratio used for password strength calculation.
    // ...Password Length = 50%
    // ...Numerics = 15%
    // ...Casing = 15%
    // ...Symbols = 20%
    this._calcWeightings = "50;15;15;20";

    this._minLowerCaseChars = 0;
    this._minUpperCaseChars = 0;
}
        
AjaxControlToolkit.PasswordStrengthExtenderBehavior.prototype = {
    
    
    initialize : function() {
        AjaxControlToolkit.PasswordStrengthExtenderBehavior.callBaseMethod(this, 'initialize');
        
        this._createIndicatorDisplayElement();
        
        var e = this.get_element();

        // Create our delegates
        this._keyPressHandler = Function.createDelegate(this, this._onKeyPress);
        this._blurHandler = Function.createDelegate(this, this._onBlur);
        

        // Attach events/associate the events with the delegates already defined above
        $addHandler(e,'keyup', this._keyPressHandler);
        $addHandler(e,'blur', this._blurHandler);
        
        // Set some defaults
        if (this._preferredPasswordLength == null || this._preferredPasswordLength == '' || this._preferredPasswordLength <= 0) {
            this._preferredPasswordLength = 10;  // Set to at least 10 chars as a preferred pwd length, even though this is very small.
                                           // Ideally, it should be set to 20 or greater for a passphrase type scenario. Remember this is preferred, NOT minimum
            this.raisePropertyChanged('PreferredPasswordLength');
        }
        if (this._calcWeightings == null || this._calcWeightings == "") {
            this._calcWeightings = "50;15;15;20";
            this.raisePropertyChanged('CalculationWeightings');
        }
        
        // Get our initial password strength calculated values. This performsn an initial calculation and sets up the helptext.
        this._getPasswordStrength();

    },
    
    _createIndicatorDisplayElement : function() {
            
        if (this._strengthIndicator == AjaxControlToolkit.StrengthIndicatorTypes.BarIndicator)
            this._createBarIndicatorDisplayElement();
        else
            this._createTextDisplayElement();
        
        // If the Help display DIV was created ok, then set its position.
        if (this._createHelpDisplayElement() == true)
        {
            // We need to do this first as we need to find its bounding area and can only do that after its been made visible
             $common.setVisible(this._helpDiv,true);

            
            var bounds = $common.getBounds(this.get_element());
            
            var helpBounds = $common.getBounds(this._helpDiv);
            var posY;
            var posX;
            var offset = 3;  // 3 pixels for a very small amount of overlap to "connect" the help icon to the textbox

            if (this._helpHandlePosition == "LeftSide")
            {
                posY = bounds.y + ((bounds.height / 2) - (helpBounds.height / 2));
                posX = bounds.x - helpBounds.width;
            } else if (this._helpHandlePosition == "BelowRight")
            {
                posY = bounds.y + bounds.height - offset;   // Just one pixel for a small overlap
                posX = bounds.x + bounds.width - offset;
            } else if (this._helpHandlePosition == "BelowLeft")
            {
                posY = bounds.y + bounds.height - offset;
                posX = bounds.x - helpBounds.width + offset;
            } else if (this._helpHandlePosition == "RightSide")
            {
                posY = bounds.y + ((bounds.height / 2) - (helpBounds.height / 2));
                posX = bounds.x + bounds.width;
            } else if (this._helpHandlePosition == "AboveLeft")
            {
                posY = bounds.y - helpBounds.height + offset;
                posX = bounds.x - helpBounds.width + offset;

            } else   // This fall through logic gets called if the Help position is "AboveRight" or anything else for that matter
            {
                posY = bounds.y  - helpBounds.height + offset;
                posX = bounds.x + bounds.width - offset;
            }

            this._helpDiv.style.top = posY + 'px';
            this._helpDiv.style.left = posX + 'px';

        }

    },
    
    _createTextDisplayElement : function() {
        //*******************************************************************************
        // **** Create the element for textual display
        //********************************************************************************
        // Create a DIV element so we can place our own content in there.
        // This is for the textual display.
        var p = document.createElement("label");  
        p.style.position= "absolute"; 
        p.style.visibility="hidden";
        p.style.display = "none";

        // Create the control id        
        if (this.get_element().id) {
            p.id = this.get_element().id + "_PasswordStrength";
        }
        
        this._displayDiv = p;
        

        this._setTextDisplayLocation(p);
        
        // Add the DIV element to the document
        document.body.appendChild(p);
        
        this._setTextDisplayStyle(0);
        
    },
    
    _setTextDisplayStyle : function(index) {
        //*******************************************************************************
        // **** Takes care of setting the appropriate CSS class style for the textual strength display
        //********************************************************************************
        if (this._styleArray.length == 0)
        {
            if (this._txtPwdStrengthCssClass != null && this._txtPwdStrengthCssClass != '')
                this._displayDiv.className = this._txtPwdStrengthCssClass;
            else
                this._displayDiv.style.backgroundColor = "yellow";
        } else
        {
            this._displayDiv.style.backgroundColor = "";
            if ( (this._txtPwdStrengthCssClass != null && this._txtPwdStrengthCssClass != '') &&
                Sys.UI.DomElement.containsCssClass(this._displayDiv,this._txtPwdStrengthCssClass))
            {
                Sys.UI.DomElement.removeCssClass(this._displayDiv,this._txtPwdStrengthCssClass)
            }
            this._displayDiv.className = this._styleArray[index];
        }
        
    },
    
    _setBarDisplayStyle : function(index) {
        //*******************************************************************************
        // **** Takes care of setting the appropriate CSS class style for the textual strength display
        //********************************************************************************
        if (this._barBorderCssClass != '')
            this._barOuterDiv.className = this._barBorderCssClass;
        else
        {
            d1.style.width="200px";
            d1.style.borderStyle="solid";
            d1.style.borderWidth="1px";
        }

        if (this._styleArray.length == 0)
        {
            if (this._barIndicatorCssClass != '')
                this._barInnerDiv.className = this._barIndicatorCssClass;
            else
                this._barInnerDiv.style.backgroundColor = "red";
        } else
        {
            if ( (this._barIndicatorCssClass != null && this._barIndicatorCssClass != '') &&
                Sys.UI.DomElement.containsCssClass(this._barInnerDiv,this._barIndicatorCssClass))
            {
                Sys.UI.DomElement.removeCssClass(this._barInnerDiv,this._barIndicatorCssClass)
            }
            this._barInnerDiv.className = this._styleArray[index];
            
        }
        
    },

    _createBarIndicatorDisplayElement : function() {
        //*******************************************************************************
        // **** Create the element for BarIndicator display
        //********************************************************************************
        var d1 = document.createElement("div");  // outer div
        d1.style.position= "absolute"; 
        d1.style.visibility="hidden";
        d1.style.display = "none";

        var d2 = document.createElement("div");  // inner div, the bar itself
        d2.style.position= "absolute"; 
        d2.style.visibility="hidden";
        d2.style.display = "none";
        
        d1.style.height = this.get_element().offsetHeight+4 + "px";

        if (this.get_element().id) {
            d1.id = this.get_element().id + "_PasswordStrengthBar1";
            d2.id = this.get_element().id + "_PasswordStrengthBar2";
        }

        this._barOuterDiv = d1;
        this._barInnerDiv = d2;
        
        this._extractStyles();
        
        this._setBarDisplayStyle(0);

        document.body.appendChild(d1);
        document.body.appendChild(d2);

        this._setBarDisplayLocation(d1,d2);
        
    },

    // Create the DIV element that is used to represent the image to click on to display
    // the password requirements. If the _requirementsHandleCssClass is set then
    // its created and appended to the document and returns true, otherwise it returns
    // false and wont be displayed.
    _createHelpDisplayElement : function() {
        if (this._helpHandleCssClass != '')
        {
            var req = document.createElement("a");
            
            req.style.position= "absolute"; 
            req.style.visibility="hidden";
            req.style.display = "none";
            req.href = "#"; // fix for work item #8217
            req.title = AjaxControlToolkit.Resources.PasswordStrength_GetHelpRequirements;

            if (this.get_element().id) {
                req.id = this.get_element().id + "_PasswordStrengthReqDisplay";
            }

            this._helpClickHandler = Function.createDelegate(this,this._onHelpClick);
            $addHandler(req,'click',this._helpClickHandler);

            this._helpDiv = req;
            
        
            this._helpDiv.className = this._helpHandleCssClass;
            if (this.get_element().parentElement != null && this.get_element().parentElement.canHaveChildren)
                this.get_element().parentElement.appendChild(req);
            else
                document.body.appendChild(req);
            
            return true;
        } else
            return false;
    },

    _setTextDisplayLocation : function(htmlElement) {
        // Whats our current position of the textbox
        var location = $common.getLocation(this.get_element());
        var bounds = $common.getBounds(this.get_element());
        var offsetAmount = 15;
        
        if (this._displayPosition == AjaxControlToolkit.DisplayPosition.LeftSide)
        {
            htmlElement.style.top = location.y + "px";
            htmlElement.style.left = location.x - bounds.width - offsetAmount + "px"; 
        } else if (this._displayPosition == "BelowRight")
        {
            htmlElement.style.top = location.y + this.get_element().offsetHeight + "px";
            htmlElement.style.left = location.x + this.get_element().offsetWidth - (this.get_element().offsetWidth/4) + "px";
        } else if (this._displayPosition == AjaxControlToolkit.DisplayPosition.BelowLeft)
        {
            htmlElement.style.top = location.y + this.get_element().offsetHeight + "px";
            htmlElement.style.left = location.x - offsetAmount + "px";
        } else if (this._displayPosition == AjaxControlToolkit.DisplayPosition.AboveRight)
        {
            htmlElement.style.top = location.y  - this.get_element().offsetHeight + "px";
            htmlElement.style.left = location.x + this.get_element().offsetWidth - (this.get_element().offsetWidth/4) + "px";
        } else if (this._displayPosition == AjaxControlToolkit.DisplayPosition.AboveLeft)
        {
            htmlElement.style.top = location.y - this.get_element().offsetHeight + "px";
            htmlElement.style.left = location.x - offsetAmount + "px";
        } else   // This fall through logic gets called if the DisplayPositon is "RightSide" or anything else for that matter
        {
            htmlElement.style.top = location.y + "px";
            htmlElement.style.left = location.x + this.get_element().offsetWidth + offsetAmount + "px";
        }
    },
    
    _setBarDisplayLocation : function(outerElement, innerElement) {
        
        // Re: issue #1893. If the target element has a display:none, the this.get_element().offsetHeight caclulation is 0, making
        // this.get_element().offsetHeight -2 an invalid size. This test circumvents the negative problem, and we also recalc/set the
        // inner and outer div height each time this routine is called.
        if (this.get_element().offsetHeight > 0) {

            var outerBorder = $common.getBorderBox(outerElement);
            var outerPadding = $common.getPaddingBox(outerElement);
            var leftIndent = outerBorder.left + outerPadding.left;
            var topIndent = outerBorder.top + outerPadding.top;
            
            innerElement.style.height = this.get_element().offsetHeight  + "px";    // why does IE only do a minimum height????
            outerElement.style.height = this.get_element().offsetHeight  + "px";
            

            var location = $common.getLocation(this.get_element());

            var offsetAmount = 15;
            
            if (this._displayPosition == AjaxControlToolkit.DisplayPosition.LeftSide)
            {
                // We need to work out how wide the outer/surrounding DIV element is so we can subtract that from the textbox x position.
                // For whatever reason, we need to make the outer DIV element visible before the width is accurately reported, otherwise
                // it always comes back as zero. Not sure if this is IE6 specific or not.
                // To circumvent this, we briefly make the control visible, get its width, then make it invisble again.
                
                // Fix bug where the bar was displayed initially but then hidden after the calculation.
                var initialVisibleState = $common.getVisible(this._barOuterDiv);
                
                // Get the content size so we take into account padding.
                $common.setVisible(this._barOuterDiv,true);        
                var barBounds = $common.getContentSize(outerElement);
                $common.setVisible(this._barOuterDiv, initialVisibleState);   
                
                var _barIndicatorWidth = barBounds.width;

                outerElement.style.top = location.y + "px";
                outerElement.style.left = location.x - parseInt(_barIndicatorWidth) - offsetAmount + "px";
                
                innerElement.style.top = location.y + topIndent + "px";
                innerElement.style.left = location.x - parseInt(_barIndicatorWidth) - offsetAmount + leftIndent + "px";
            } else if (this._displayPosition == AjaxControlToolkit.DisplayPosition.BelowRight)
            {
                outerElement.style.top = location.y + this.get_element().offsetHeight + "px";
                outerElement.style.left = location.x + this.get_element().offsetWidth + "px";
                
                innerElement.style.top = location.y + this.get_element().offsetHeight + topIndent + "px";
                innerElement.style.left = location.x + this.get_element().offsetWidth + leftIndent + "px";
            } else if (this._displayPosition == AjaxControlToolkit.DisplayPosition.BelowLeft)
            {
                outerElement.style.top = location.y + this.get_element().offsetHeight + "px";
                outerElement.style.left = location.x + "px";
                
                innerElement.style.top = location.y + this.get_element().offsetHeight + topIndent + "px";
                innerElement.style.left = location.x + leftIndent + "px";
            } else if (this._displayPosition == AjaxControlToolkit.DisplayPosition.AboveRight)
            {
                outerElement.style.top = location.y-this.get_element().offsetHeight + "px";
                outerElement.style.left = location.x + this.get_element().offsetWidth + "px";
                
                innerElement.style.top = location.y-this.get_element().offsetHeight + topIndent + "px";
                innerElement.style.left = location.x + this.get_element().offsetWidth + leftIndent + "px";

            } else if (this._displayPosition == AjaxControlToolkit.DisplayPosition.AboveLeft)
            {
                outerElement.style.top = location.y-this.get_element().offsetHeight + "px";
                outerElement.style.left = location.x + "px";
                
                innerElement.style.top = location.y-this.get_element().offsetHeight + topIndent + "px";
                innerElement.style.left = location.x + leftIndent + "px";
            } else   // This fall through logic gets called if the DisplayPositon is "RightSide" or anything else for that matter
            {
                outerElement.style.top = location.y + "px";
                outerElement.style.left = location.x + this.get_element().offsetWidth + offsetAmount + "px";
                
                innerElement.style.top = location.y + topIndent + "px";
                innerElement.style.left = location.x + this.get_element().offsetWidth + offsetAmount + leftIndent + "px";
            }
        }
    },

    // Determine what mode of dispay we are using and show the appropriate indicator
    _showStrength : function() {
    
        var e = this.get_element();
        
        // Here we check to see if the target element is in readonly mode. If so, then we dont want to
        // display the password strength indicator. we do it here because the application may dynamically
        // manipulate the readonly state so we need to ensure we check for it each time.
        if (e.readOnly == true)
            return;

        var pwdStrength = this._getPasswordStrength();
        
        if (this._strengthIndicator == AjaxControlToolkit.StrengthIndicatorTypes.BarIndicator)
        {
            
            // Set the visibility to true initially so that width and height calculations are accurate 
            $common.setVisible(this._barOuterDiv , true);
            $common.setVisible(this._barInnerDiv, true);

            var index = 0;
            if (this._styleArray != null && this._styleArray.length > 0)
            {
                index = parseInt(pwdStrength/100 * (this._styleArray.length-1));
            }
            this._setBarDisplayStyle(index);

            this._setBarDisplayLocation(this._barOuterDiv,this._barInnerDiv);
             
            this._showStrengthAsBarValue(pwdStrength);
            
            
        } else
        {
            this._createTextDescriptions(this._txtStrengthDescriptions);
      
            $common.setVisible(this._displayDiv, true);
            
            var index = parseInt(pwdStrength/100 * (this._levelArray.length-1));
            var pwdStrengthText = this._levelArray[index];
            
            this._setTextDisplayStyle(index);
            
            this._setTextDisplayLocation(this._displayDiv);
            
            this._showStrengthAsText(pwdStrengthText);   

        }
        
    },
    
    _showStrengthAsText : function(pwdStrengthVal) {
        this._displayDiv.innerHTML = this._prefixText + pwdStrengthVal;
    },
    
    _showStrengthAsBarValue : function(strengthValue) {
        var bounds = $common.getContentSize(this._barOuterDiv);
        var outerPadding = $common.getPaddingBox(this._barOuterDiv);
        var barLength = parseInt( bounds.width * (strengthValue / 100));
        this._barInnerDiv.style.width = barLength + "px";
    },
    
    _getPasswordStrength : function() {
        // work out how strong the text entered into the textbox is for a password
        // and return an integer in between 1 .. 100 (ie. a percentage value)
        // 1 = weakest
        // 100 = strongest
        // Note: Password determination involves
        //       Length (makes up 50% of score)
        //       Does it contain numbers (makes up 15% of score)
        //       Does it contain upper and lowercase (makes up 15% of score)
        //       Does it contain special symbols (makes up 20% of score)
        
        var pwd = AjaxControlToolkit.TextBoxWrapper.get_Wrapper(this.get_element()).get_Value();
        
        var pwdRequirements = '';  // This will contain what is required to make this password a 'strong' password.
        
        var percentTotal = 0;
        
        // Extract the password calculation weighting ratios
        var weights = this._calcWeightings.split(';');
        if (weights.length != 4)
            Sys.Debug.assert(null, AjaxControlToolkit.Resources.PasswordStrength_InvalidWeightingRatios);

        var _ratioLen = parseInt(weights[0]);
        var _ratioNum = parseInt(weights[1]);
        var _ratioCas = parseInt(weights[2]);
        var _ratioSym = parseInt(weights[3]);
        
        //***********************************************
        // Length Criteria
        // Any pwd with a length > 20 is a passphrase and is a good thing
        var ratio = pwd.length / this._preferredPasswordLength;
        if (ratio > 1)
            ratio = 1;
        
        var lengthStrength = (ratio * _ratioLen);
        
        // Add to our percentage total
        percentTotal += lengthStrength;
        
        if (ratio < 1)
            pwdRequirements = String.format(AjaxControlToolkit.Resources.PasswordStrength_RemainingCharacters, this._preferredPasswordLength - pwd.length);
            
        //***********************************************
        // Numeric Criteria
        // Does it contain numbers?
        if (this._minimumNumericCharacters > 0)
        {
            var numbersRegex = new RegExp("[0-9]", "g");
            var numCount = this._getRegexCount(numbersRegex,pwd);
            if ( numCount >= this._minimumNumericCharacters)
                percentTotal += _ratioNum;
            
            if (numCount < this._minimumNumericCharacters)
            {
                if (pwdRequirements != '')
                    pwdRequirements += ', ';
                pwdRequirements += String.format(AjaxControlToolkit.Resources.PasswordStrength_RemainingNumbers, this._minimumNumericCharacters - numCount);
            }
        } else
        {
            // If the user has not specified that the password should contain numerics, then we just figure out the ratio according
            // to the password length as that is always something
            percentTotal += (ratio * _ratioNum);
        }
            
        //***********************************************
        // Casing Criteria
        // Does it contain lowercase AND uppercase Text
        if (this._requiresUpperAndLowerCaseCharacters == true ||
            (typeof(this._requiresUpperAndLowerCaseCharacters) == 'String' && Boolean.parse(this._requiresUpperAndLowerCaseCharacters) == true) )
        {
            var lowercaseRegex = new RegExp("[a-z]", "g");
            var uppercaseRegex = new RegExp("[A-Z]", "g");
            
            var numLower = this._getRegexCount(lowercaseRegex,pwd);
            var numUpper = this._getRegexCount(uppercaseRegex,pwd);

            if (numLower > 0 || numUpper > 0)
            {
                if (numLower >= this._minLowerCaseChars && numUpper >= this._minUpperCaseChars)
                    percentTotal += _ratioCas;
                else
                {
                    if (this._minLowerCaseChars > 0 && (this._minLowerCaseChars - numLower) > 0)
                    {
                        if (pwdRequirements != '')
                            pwdRequirements += ', ';
                        pwdRequirements += String.format(AjaxControlToolkit.Resources.PasswordStrength_RemainingLowerCase, this._minLowerCaseChars - numLower);
                    }
                    if (this._minUpperCaseChars > 0 && (this._minUpperCaseChars - numUpper))
                    {
                        if (pwdRequirements != '')
                            pwdRequirements += ', ';
                        pwdRequirements += String.format(AjaxControlToolkit.Resources.PasswordStrength_RemainingUpperCase, this._minUpperCaseChars - numUpper);
                    }
                }
                
            }
            else
            {
                if (pwdRequirements != '')
                    pwdRequirements += ', ';
                pwdRequirements += AjaxControlToolkit.Resources.PasswordStrength_RemainingMixedCase;

            }
        } else
        {
            // If the user has not specified that the password should contain numerics, then we just figure out the ratio according
            // to the password length as  that is always something
            percentTotal += (ratio * _ratioCas);
        }


        //***********************************************
        // Symbol Criteria
        // Does it contain any special symbols?
        if (this._minimumSymbolCharacters > 0)
        {
            var symbolRegex = new RegExp("[^a-z,A-Z,0-9,\x20]", "g"); // related to work item 1034
            var numCount = this._getRegexCount(symbolRegex,pwd);
            if (numCount >= this._minimumSymbolCharacters)
                percentTotal += _ratioSym;
            
            if (numCount < this._minimumSymbolCharacters)
            {
                if (pwdRequirements != '')
                    pwdRequirements += ', ';
                pwdRequirements += String.format(AjaxControlToolkit.Resources.PasswordStrength_RemainingSymbols, this._minimumSymbolCharacters - numCount);
            }

        } else
        {
            // If the user has not specified that the password should contain numerics, then we just figure out the ratio according
            // to the password length as that is always something
            percentTotal += (ratio * _ratioSym);
        }
        
        this.set_HelpText(pwdRequirements);
        
        return percentTotal;
        
    },
    
    // *******************************************************
    // Determines the number of matches according to the regex spec and the test string
    _getRegexCount : function(regex,testString) {
        var cnt = 0;
        if (testString != null && testString != "")
        {
            var results = testString.match(regex);
            if (results != null)
                cnt = results.length;
        }
        return cnt;
    },

    // Extract the styles (if present) from out comma delimited list    
    _extractStyles : function() {
       // Get our styles for each text indicator in the array
        if (this._strengthStyles != null && this._strengthStyles != "" )
            this._styleArray = this._strengthStyles.split(this._txtseparator);

    },
    
    //************************************************************
    // ** Split the TextStrengthDescriptions property into our internal
    // ** array
    //************************************************************
    _createTextDescriptions : function(descriptions) {
        this._levelArray = this._txtStrengthDescriptions.split(this._txtseparator);
        
        this._extractStyles();
                
        // Make sure we have the same number of styles as per the number of actual text descriptions
        if (this._styleArray.length > 0 && this._styleArray.length != this._levelArray.length)
        {
            Sys.Debug.assert(false, AjaxControlToolkit.Resources.PasswordStrength_InvalidStrengthDescriptionStyles);
        }
            
        // Check to see that there were enough text descriptions specified and that it didn't exceed our maximum
        if (this._levelArray.length < this._MIN_TXT_LEVEL_COUNT || this._levelArray > this._MAX_TXT_LEVEL_COUNT)
        {
            Sys.Debug.assert(false, AjaxControlToolkit.Resources.PasswordStrength_InvalidStrengthDescriptions);
            // Do we need to do more here? Should we jsut be relying on the server side validation to pick up any inconsistencies?
        }
        // Everything is ok
    },
    
    _onKeyPress : function() {
        
        this._showStrength();
    },

    _onBlur : function() {
        if (this._strengthIndicator == AjaxControlToolkit.StrengthIndicatorTypes.BarIndicator)
        {
             $common.setVisible(this._barOuterDiv, false);
             $common.setVisible(this._barInnerDiv, false);
        } else
        {
            $common.setVisible(this._displayDiv, false);
        }
    },
    
    _onHelpClick : function() {
        if (this._helpText == '')
            alert(AjaxControlToolkit.Resources.PasswordStrength_Satisfied);
        else
            alert(this._helpText);
    },
    
    dispose : function() {
        var e = this.get_element();

        // Detach events
        if (this._keyPressHandler) {
            $removeHandler(e,'keyup', this._keyPressHandler);
            this._keyPressHandler = null;
        }
        if (this._blurHandler) {
            $removeHandler(e,'blur', this._blurHandler);
            this._blurHandler = null;
        }
        if (this._helpClickHandler) {
            $removeHandler(this._helpDiv, 'click', this._helpClickHandler);
            this._helpClickHandler = null;
        }

        // Clear text display if applicable
        if(this._displayDiv) 
           $common.setVisible(this._displayDiv, false);

        // Clear Bar display if applicable
        if (this._barOuterDiv)
             $common.setVisible(this._barOuterDiv,false);
        if (this._barInnerDiv)
             $common.setVisible(this._barInnerDiv, false);
        
        
        if (this._helpHandleCssClass != '' && this._helpDiv)
             $common.setVisible(this._helpDiv ,false);
       
        AjaxControlToolkit.PasswordStrengthExtenderBehavior.callBaseMethod(this, 'dispose');
    },
    
    get_PreferredPasswordLength : function() {
        return this._preferredPasswordLength;
    },

    set_PreferredPasswordLength : function(value) {
        if (this._preferredPasswordLength != value) {
            this._preferredPasswordLength = value;
            this.raisePropertyChanged('PreferredPasswordLength');
        }
    },

    get_MinimumNumericCharacters : function() {
        return this._minimumNumericCharacters;
    },

    set_MinimumNumericCharacters : function(value) {
        if (this._minimumNumericCharacters != value) {
            this._minimumNumericCharacters = value;
            this.raisePropertyChanged('MinimumNumericCharacters');
        }
    },
    
    get_MinimumSymbolCharacters : function() {
        return this._minimumSymbolCharacters;
    },

    set_MinimumSymbolCharacters : function(value) {
        if (this._minimumSymbolCharacters != value) {
            this._minimumSymbolCharacters = value;
            this.raisePropertyChanged('MinimumSymbolCharacters');
        }
    },
    get_RequiresUpperAndLowerCaseCharacters : function() {
        return this._requiresUpperAndLowerCaseCharacters;
    },

    set_RequiresUpperAndLowerCaseCharacters : function(value) {
        if (this._requiresUpperAndLowerCaseCharacters != value) {
            this._requiresUpperAndLowerCaseCharacters = value;
            this.raisePropertyChanged('RequiresUpperAndLowerCaseCharacters');
        }
    },

    get_TextCssClass : function() {
        return this._txtPwdStrengthCssClass;
    },

    set_TextCssClass : function(value) {
        if (this._txtPwdStrengthCssClass != value) {
            this._txtPwdStrengthCssClass = value;
            this.raisePropertyChanged('TextCssClass');
        }
    },

    get_BarBorderCssClass : function() {
        return this._barBorderCssClass;
    },

    set_BarBorderCssClass : function(value) {
        if (this._barBorderCssClass != value) {
            this._barBorderCssClass = value;
            this.raisePropertyChanged('BarBorderCssClass');
        }
    },
    get_BarIndicatorCssClass : function() {
        return this._barIndicatorCssClass;
    },
    
    set_BarIndicatorCssClass : function(value) {
        if (this._barIndicatorCssClass != value) {
            this._barIndicatorCssClass = value;
            this.raisePropertyChanged('BarIndicatorCssClass');
        }
    },


    get_DisplayPosition : function() {
        return this._displayPosition;
    },
    
    set_DisplayPosition : function(value) {
        if (this._displayPosition != value) {
            this._displayPosition = value;
            this.raisePropertyChanged('DisplayPosition');
        }
    },

    
    get_PrefixText : function() {
        return this._prefixText;
    },
    
    set_PrefixText : function(value) {
        if (this._prefixText != value) {
            this._prefixText = value;
            this.raisePropertyChanged('PrefixText');
        }
    },

    get_StrengthIndicatorType : function() {
        return this._strengthIndicator;
    },
    
    set_StrengthIndicatorType : function(value) {
        if (this._strengthIndicator != value) {
            this._strengthIndicator = value;
            this.raisePropertyChanged('StrengthIndicatorType');
        }
    },
    
    get_TextStrengthDescriptions : function() {
        return this._txtStrengthDescriptions;
    },
    
    set_TextStrengthDescriptions : function(value) {
        if (value != null && value != '' && value != this._txtStrengthDescriptions) {
            this._txtStrengthDescriptions = value;
            this.raisePropertyChanged('TextStrengthDescriptions');
        }
    },

    get_StrengthStyles : function() {
        return this._strengthStyles;
    },
    
    set_StrengthStyles : function(value) {
        if (value != null && value != '' && value != this._strengthStyles) {
            this._strengthStyles = value;
            this.raisePropertyChanged('StrengthStyles');
        }
    },
    
    //*********************************************
    // NOTE: The TextStrengthDescriptionStyles properties
    // have been deprecated in faour of the StrengthStyles properties
    get_TextStrengthDescriptionStyles : function() {
        return this.get_StrengthStyles();
    },
    
    //*********************************************
    // NOTE: The TextStrengthDescriptionStyles properties
    // have been deprecated in faour of the StrengthStyles properties
    set_TextStrengthDescriptionStyles : function(value) {
    	this.set_StrengthStyles(value);
    },

    
    get_HelpHandleCssClass : function() {
        return this._helpHandleCssClass;
    },
    
    set_HelpHandleCssClass : function(value) {
        if (this._helpHandleCssClass != value) {
            this._helpHandleCssClass = value;
            this.raisePropertyChanged('HelpHandleCssClass');
        }
    },
        
    get_HelpHandlePosition : function() {
        return this._helpHandlePosition;
    },
    
    set_HelpHandlePosition : function(value) {
        if (this._helpHandlePosition != value) {
            this._helpHandlePosition = value;
            this.raisePropertyChanged('HelpHandlePosition');
        }
    },
    
    get_HelpText : function() {
        return this._helpText;
    },
    
    get_CalculationWeightings : function() {
        return this._calcWeightings;
    },
    
    set_CalculationWeightings : function(value) {
        if (this._calcWeightings != value) {
            this._calcWeightings = value;
            this.raisePropertyChanged('CalculationWeightings');
        }
    },
    
    set_HelpText : function(value) {
        if (this._helpStatusLabelID) {
            var label = $get(this._helpStatusLabelID);
            if (label) {
                if (AjaxControlToolkit.TextBoxWrapper.get_Wrapper(this.get_element()).get_Value().length > 0) {            
                    label.innerHTML = value;
                }
                else {
                    label.innerHTML = "";
                }
            }
        }
        if (this._helpText != value) {
            this._helpText = value;
            this.raisePropertyChanged('HelpText');
        }
    },
    
    get_MinimumLowerCaseCharacters : function() {
        return this._minLowerCaseChars;
    },
            
    set_MinimumLowerCaseCharacters : function(value) {
        this._minLowerCaseChars = value;
    },

    get_MinimumUpperCaseCharacters : function() {
        return this._minUpperCaseChars;
    },
            
    set_MinimumUpperCaseCharacters : function(value) {
        this._minUpperCaseChars = value;
    },

    get_HelpStatusLabelID : function() {
        return this._helpStatusLabelID;
    },
    
    set_HelpStatusLabelID : function(value) {
        if (this._helpStatusLabelID != value) {
            this._helpStatusLabelID = value;
            this.raisePropertyChanged('HelpStatusLabelID');
        }
    }
}


AjaxControlToolkit.PasswordStrengthExtenderBehavior.registerClass('AjaxControlToolkit.PasswordStrengthExtenderBehavior', AjaxControlToolkit.BehaviorBase);


// Register enumerations  

AjaxControlToolkit.StrengthIndicatorTypes = function() {
    throw Error.invalidOperation();
}
AjaxControlToolkit.DisplayPosition = function() {
    throw Error.invalidOperation();
}

AjaxControlToolkit.StrengthIndicatorTypes.prototype = {
    Text: 0,
    BarIndicator: 1
}

AjaxControlToolkit.DisplayPosition.prototype = {
    RightSide: 0,
    AboveRight: 1,
    AboveLeft: 2,
    LeftSide: 3,
    BelowRight: 4,
    BelowLeft: 5
}

AjaxControlToolkit.DisplayPosition.registerEnum('AjaxControlToolkit.DisplayPosition');
AjaxControlToolkit.StrengthIndicatorTypes.registerEnum('AjaxControlToolkit.StrengthIndicatorTypes');
