/**
 * jquery.meio.mask.js
 * @author: fabiomcosta
 * @version: 1.1.3
 *
 * Created by Fabio M. Costa on 2008-09-16. Please report any bug at http://www.meiocodigo.com
 *
 * Copyright (c) 2008 Fabio M. Costa http://www.meiocodigo.com
 *
 * The MIT License (http://www.opensource.org/licenses/mit-license.php)
 *
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following
 * conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */
(function($){
    var isIphone = (window.orientation != undefined),
        // browsers like firefox2 and before and opera doenst have the onPaste event, but the paste feature can be done with the onInput event.
        pasteEvent = (($.browser.opera || ($.browser.mozilla && parseFloat($.browser.version.substr(0,3)) < 1.9 ))? 'input': 'paste');
    $.event.special.paste = {
        setup: function() {
            if(this.addEventListener)
                this.addEventListener(pasteEvent, pasteHandler, false);
               else if (this.attachEvent)
                this.attachEvent(pasteEvent, pasteHandler);
        },
        teardown: function() {
            if(this.removeEventListener)
                this.removeEventListener(pasteEvent, pasteHandler, false);
               else if (this.detachEvent)
                this.detachEvent(pasteEvent, pasteHandler);
        }
    };
    // the timeout is set because we can't get the value from the input without it
    function pasteHandler(e){
        var self = this;
        e = $.event.fix(e || window.e);
        e.type = 'paste';
        // Execute the right handlers by setting the event type to paste
        setTimeout(function(){ $.event.handle.call(self, e); }, 1);
    };
    $.extend({
        mask : {
            // the mask rules. You may add yours!
            // number rules will be overwritten
            rules : {/*
                'z': /[a-z]/,
                'Z': /[A-Z]/,
                'a': /[a-zA-Z]/,
                '*': /[0-9a-zA-Z]/,
                '@': /[0-9a-zA-ZçÇáàãâéèêíìóòôõúùü]/
            */},
            // these keys will be ignored by the mask.
            // all these numbers where obtained on the keydown event
            keyRepresentation : {
                8    : 'backspace',
                9    : 'tab',
                13    : 'enter',
                16    : 'shift',
                17    : 'control',
                18    : 'alt',
                27    : 'esc',
                33    : 'page up',
                34    : 'page down',
                35    : 'end',
                36    : 'home',
                37    : 'left',
                38    : 'up',
                39    : 'right',
                40    : 'down',
                45    : 'insert',
                46    : 'delete',
                116    : 'f5',
                123 : 'f12',
                224    : 'command'
            },
            iphoneKeyRepresentation : {
                10    : 'go',
                127    : 'delete'
            },
            signals : {
                '+' : '',
                '-' : '-'
            },
            // default settings for the plugin
            options : {
                attr: 'alt', // an attr to look for the mask name or the mask itself
                mask: null, // the mask to be used on the input
                type: 'fixed', // the mask of this mask
                maxLength: -1, // the maxLength of the mask
                defaultValue: '', // the default value for this input
                signal: false, // this should not be set, to use signal at masks put the signal you want ('-' or '+') at the default value of this mask.
                               // See the defined masks for a better understanding.
                textAlign: true, // use false to not use text-align on any mask (at least not by the plugin, you may apply it using css)
                selectCharsOnFocus: true, // select all chars from input on its focus
                autoTab: true, // auto focus the next form element when you type the mask completely
                setSize: false, // sets the input size based on the length of the mask (work with fixed and reverse masks only)
                fixedChars : '[(),.:/ -]', // fixed chars to be used on the masks. You may change it for your needs!
                onInvalid : function(){},
                onValid : function(){},
                onOverflow : function(){}
            },
            // masks. You may add yours!
            // Ex: $.fn.setMask.masks.msk = {mask: '999'}
            // and then if the 'attr' options value is 'alt', your input should look like:
            // <input type="text" name="some_name" id="some_name" alt="msk" />
            masks : {
                'phone'                : { mask : '(99) 9999-9999' },
                'phone-us'            : { mask : '(999) 999-9999' },
                'cpf'                : { mask : '999.999.999-99' }, // cadastro nacional de pessoa fisica
                'cnpj'                : { mask : '99.999.999/9999-99' },
                'date'                : { mask : '39/19/9999' }, //uk date
                'date-us'            : { mask : '19/39/9999' },
                'cep'                : { mask : '99999-999' },
                'time'                : { mask : '29:59' },
                'cc'                : { mask : '9999 9999 9999 9999' }, //credit card mask
                'integer'            : { mask : '999.999.999.999', type : 'reverse' },
                'decimal'            : { mask : '99,999.999.999.999', type : 'reverse', defaultValue : '000' },
                'decimal-us'        : { mask : '99.999,999,999,999', type : 'reverse', defaultValue : '000' },
                'signed-decimal'    : { mask : '99,999.999.999.999', type : 'reverse', defaultValue : '+000' },
                'signed-decimal-us' : { mask : '99,999.999.999.999', type : 'reverse', defaultValue : '+000' }
            },
            init : function(){
                // if has not inited...
                if( !this.hasInit ){
                    var self = this, i,
                        keyRep = (isIphone)? this.iphoneKeyRepresentation: this.keyRepresentation;
                    this.ignore = false;
                    // constructs number rules
                    for(i=0; i<=9; i++) this.rules[i] = new RegExp('[0-'+i+']');
                    this.keyRep = keyRep;
                    // ignore keys array creation for iphone or the normal ones
                    this.ignoreKeys = [];
                    $.each(keyRep,function(key){
                        self.ignoreKeys.push( parseInt(key) );
                    });
                    this.hasInit = true;
                }
            },
            set: function(el,options){
                var maskObj = this,
                    $el = $(el),
                    mlStr = 'maxLength';
                options = options || {};
                this.init();
                return $el.each(function(){
                    if(options.attr) maskObj.options.attr = options.attr;
                    var $this = $(this),
                        o = $.extend({}, maskObj.options),
                        attrValue = $this.attr(o.attr),
                        tmpMask = '';
                    // then we look for the 'attr' option
                    tmpMask = (typeof options == 'string')? options: (attrValue != '')? attrValue: null;
                    if(tmpMask) o.mask = tmpMask;
                    // then we see if it's a defined mask
                    if(maskObj.masks[tmpMask]) o = $.extend(o, maskObj.masks[tmpMask]);
                    // then it looks if the options is an object, if it is we will overwrite the actual options
                    if(typeof options == 'object' && options.constructor != Array) o = $.extend(o, options);
                    //then we look for some metadata on the input
                    if($.metadata) o = $.extend(o, $this.metadata());
                    if(o.mask != null){
                        if($this.data('mask')) maskObj.unset($this);
                        var defaultValue = o.defaultValue,
                            reverse = (o.type=='reverse'),
                            fixedCharsRegG = new RegExp(o.fixedChars, 'g');
                        if(o.maxLength == -1) o.maxLength = $this.attr(mlStr);
                        o = $.extend({}, o,{
                            fixedCharsReg: new RegExp(o.fixedChars),
                            fixedCharsRegG: fixedCharsRegG,
                            maskArray: o.mask.split(''),
                            maskNonFixedCharsArray: o.mask.replace(fixedCharsRegG, '').split('')
                        });
                        //setSize option (this is not removed from the input (while removing the mask) since this would be kind of funky)
                        if((o.type=='fixed' || reverse) && o.setSize && !$this.attr('size')) $this.attr('size', o.mask.length);
                        //sets text-align right for reverse masks
                        if(reverse && o.textAlign) $this.css('text-align', 'right');
                        if(this.value!='' || defaultValue!=''){
                            // apply mask to the current value of the input or to the default value
                            var val = maskObj.string((this.value!='')? this.value: defaultValue, o);
                            //setting defaultValue fixes the reset button from the form
                            this.defaultValue = val;
                            $this.val(val);
                        }
                        // compatibility patch for infinite mask, that is now repeat
                        if(o.type=='infinite') o.type = 'repeat';
                        $this.data('mask', o);
                        // removes the maxLength attribute (it will be set again if you use the unset method)
                        $this.removeAttr(mlStr);
                        // setting the input events
                        $this.bind('keydown.mask', {func:maskObj._onKeyDown, thisObj:maskObj}, maskObj._onMask)
                            .bind('keypress.mask', {func:maskObj._onKeyPress, thisObj:maskObj}, maskObj._onMask)
                            .bind('keyup.mask', {func:maskObj._onKeyUp, thisObj:maskObj}, maskObj._onMask)
                            .bind('paste.mask', {func:maskObj._onPaste, thisObj:maskObj}, maskObj._onMask)
                            .bind('focus.mask', maskObj._onFocus)
                            .bind('blur.mask', maskObj._onBlur)
                            .bind('change.mask', maskObj._onChange);
                    }
                });
            },
            //unsets the mask from el
            unset : function(el){
                var $el = $(el);
                return $el.each(function(){
                    var $this = $(this);
                    if($this.data('mask')){
                        var maxLength = $this.data('mask').maxLength;
                        if(maxLength != -1) $this.attr('maxLength', maxLength);
                        $this.unbind('.mask')
                            .removeData('mask');
                    }
                });
            },
            //masks a string
            string : function(str, options){
                this.init();
                var o={};
                if(typeof str != 'string') str = String(str);
                switch(typeof options){
                    case 'string':
                        // then we see if it's a defined mask
                        if(this.masks[options]) o = $.extend(o, this.masks[options]);
                        else o.mask = options;
                        break;
                    case 'object':
                        o = options;
                }
                if(!o.fixedChars) o.fixedChars = this.options.fixedChars;
                var fixedCharsReg = new RegExp(o.fixedChars),
                    fixedCharsRegG = new RegExp(o.fixedChars, 'g');
                // insert signal if any
                if( (o.type=='reverse') && o.defaultValue ){
                    if( typeof this.signals[o.defaultValue.charAt(0)] != 'undefined' ){
                        var maybeASignal = str.charAt(0);
                        o.signal = (typeof this.signals[maybeASignal] != 'undefined') ? this.signals[maybeASignal] : this.signals[o.defaultValue.charAt(0)];
                        o.defaultValue = o.defaultValue.substring(1);
                    }
                }
                return this.__maskArray(str.split(''),
                            o.mask.replace(fixedCharsRegG, '').split(''),
                            o.mask.split(''),
                            o.type,
                            o.maxLength,
                            o.defaultValue,
                            fixedCharsReg,
                            o.signal);
            },
            // all the 3 events below are here just to fix the change event on reversed masks.
            // It isn't fired in cases that the keypress event returns false (needed).
            _onFocus: function(e){
                var $this = $(this), dataObj = $this.data('mask');
                dataObj.inputFocusValue = $this.val();
                dataObj.changed = false;
                if(dataObj.selectCharsOnFocus) $this.select();
            },
            _onBlur: function(e){
                var $this = $(this), dataObj = $this.data('mask');
                if(dataObj.inputFocusValue != $this.val() && !dataObj.changed)
                    $this.trigger('change');
            },
            _onChange: function(e){
                $(this).data('mask').changed = true;
            },
            _onMask : function(e){
                var thisObj = e.data.thisObj,
                    o = {};
                o._this = e.target;
                o.$this = $(o._this);
                // if the input is readonly it does nothing
                if(o.$this.attr('readonly')) return true;
                o.data = o.$this.data('mask');
                o[o.data.type] = true;
                o.value = o.$this.val();
                o.nKey = thisObj.__getKeyNumber(e);
                o.range = thisObj.__getRange(o._this);
                o.valueArray = o.value.split('');
                return e.data.func.call(thisObj, e, o);
            },
            _onKeyDown : function(e,o){
                // lets say keypress at desktop == keydown at iphone (theres no keypress at iphone)
                this.ignore = $.inArray(o.nKey, this.ignoreKeys) > -1 || e.ctrlKey || e.metaKey || e.altKey;
                if(this.ignore){
                    var rep = this.keyRep[o.nKey];
                    o.data.onValid.call(o._this, rep? rep: '', o.nKey);
                }
                return isIphone ? this._keyPress(e, o) : true;
            },
            _onKeyUp : function(e, o){
                //9=TAB_KEY 16=SHIFT_KEY
                //this is a little bug, when you go to an input with tab key
                //it would remove the range selected by default, and that's not a desired behavior
                if(o.nKey==9 || o.nKey==16) return true;
                if(o.data.type=='repeat'){
                    this.__autoTab(o);
                    return true;
                }
                return this._onPaste(e, o);
            },
            _onPaste : function(e,o){
                // changes the signal at the data obj from the input
                if(o.reverse) this.__changeSignal(e.type, o);
                var $thisVal = this.__maskArray(
                    o.valueArray,
                    o.data.maskNonFixedCharsArray,
                    o.data.maskArray,
                    o.data.type,
                    o.data.maxLength,
                    o.data.defaultValue,
                    o.data.fixedCharsReg,
                    o.data.signal
                );
                o.$this.val( $thisVal );
                // this makes the caret stay at first position when
                // the user removes all values in an input and the plugin adds the default value to it (if it haves one).
                if( !o.reverse && o.data.defaultValue.length && (o.range.start==o.range.end) )
                    this.__setRange(o._this, o.range.start, o.range.end);
                //fix so ie's and safari's caret won't go to the end of the input value.
                if( ($.browser.msie || $.browser.safari) && !o.reverse)
                    this.__setRange(o._this,o.range.start,o.range.end);
                if(this.ignore) return true;
                this.__autoTab(o);
                return true;
            },
            _onKeyPress: function(e, o){
                if(this.ignore) return true;
                // changes the signal at the data obj from the input
                if(o.reverse) this.__changeSignal(e.type, o);
                var c = String.fromCharCode(o.nKey),
                    rangeStart = o.range.start,
                    rawValue = o.value,
                    maskArray = o.data.maskArray;
                if(o.reverse){
                         // the input value from the range start to the value start
                    var valueStart = rawValue.substr(0, rangeStart),
                        // the input value from the range end to the value end
                        valueEnd = rawValue.substr(o.range.end, rawValue.length);
                    rawValue = valueStart+c+valueEnd;
                    //necessary, if not decremented you will be able to input just the mask.length-1 if signal!=''
                    //ex: mask:99,999.999.999 you will be able to input 99,999.999.99
                    if(o.data.signal && (rangeStart-o.data.signal.length > 0)) rangeStart-=o.data.signal.length;
                }
                var valueArray = rawValue.replace(o.data.fixedCharsRegG, '').split(''),
                    // searches for fixed chars begining from the range start position, till it finds a non fixed
                    extraPos = this.__extraPositionsTill(rangeStart, maskArray, o.data.fixedCharsReg);
                o.rsEp = rangeStart+extraPos;
                if(o.repeat) o.rsEp = 0;
                // if the rule for this character doesnt exist (value.length is bigger than mask.length)
                // added a verification for maxLength in the case of the repeat type mask
                if( !this.rules[maskArray[o.rsEp]] || (o.data.maxLength != -1 && valueArray.length >= o.data.maxLength && o.repeat)){
                    // auto focus on the next input of the current form
                    o.data.onOverflow.call(o._this, c, o.nKey);
                    return false;
                }
                // if the new character is not obeying the law... :P
                else if( !this.rules[maskArray[o.rsEp]].test( c ) ){
                    o.data.onInvalid.call(o._this, c, o.nKey);
                    return false;
                }
                else o.data.onValid.call(o._this, c, o.nKey);
                var $thisVal = this.__maskArray(
                    valueArray,
                    o.data.maskNonFixedCharsArray,
                    maskArray,
                    o.data.type,
                    o.data.maxLength,
                    o.data.defaultValue,
                    o.data.fixedCharsReg,
                    o.data.signal,
                    extraPos
                );
                o.$this.val( $thisVal );
                return (o.reverse)? this._keyPressReverse(e, o): (o.fixed)? this._keyPressFixed(e, o): true;
            },
            _keyPressFixed: function(e, o){
                if(o.range.start==o.range.end){
                    // the 0 thing is cause theres a particular behavior i wasnt liking when you put a default
                    // value on a fixed mask and you select the value from the input the range would go to the
                    // end of the string when you enter a char. with this it will overwrite the first char wich is a better behavior.
                    // opera fix, cant have range value bigger than value length, i think it loops thought the input value...
                    if((o.rsEp==0 && o.value.length==0) || o.rsEp < o.value.length)
                        this.__setRange(o._this, o.rsEp, o.rsEp+1);
                }
                else
                    this.__setRange(o._this, o.range.start, o.range.end);
                return true;
            },
            _keyPressReverse: function(e, o){
                //fix for ie
                //this bug was pointed by Pedro Martins
                //it fixes a strange behavior that ie was having after a char was inputted in a text input that
                //had its content selected by any range
                if($.browser.msie && ((o.range.start==0 && o.range.end==0) || o.range.start != o.range.end ))
                    this.__setRange(o._this, o.value.length);
                return false;
            },
            __autoTab: function(o){
                if(o.data.autoTab
                    && (
                        (
                            o.$this.val().length >= o.data.maskArray.length
                            && !o.repeat
                        ) || (
                            o.data.maxLength != -1
                            && o.valueArray.length >= o.data.maxLength
                            && o.repeat
                        )
                    )
                ){
                    var nextEl = this.__getNextInput(o._this, o.data.autoTab);
                    if(nextEl){
                        o.$this.trigger('blur');
                        nextEl.focus().select();
                    }
                }
            },
            // changes the signal at the data obj from the input
            __changeSignal : function(eventType,o){
                if(o.data.signal!==false){
                    var inputChar = (eventType=='paste')? o.value.charAt(0): String.fromCharCode(o.nKey);
                    if( this.signals && (typeof this.signals[inputChar] != 'undefined') ){
                        o.data.signal = this.signals[inputChar];
                    }
                }
            },
            __getKeyNumber : function(e){
                return (e.charCode||e.keyCode||e.which);
            },
            // this function is totaly specific to be used with this plugin, youll never need it
            // it gets the array representing an unmasked string and masks it depending on the type of the mask
            __maskArray : function(valueArray, maskNonFixedCharsArray, maskArray, type, maxlength, defaultValue, fixedCharsReg, signal, extraPos){
                if(type == 'reverse') valueArray.reverse();
                valueArray = this.__removeInvalidChars(valueArray, maskNonFixedCharsArray, type=='repeat'||type=='infinite');
                if(defaultValue) valueArray = this.__applyDefaultValue.call(valueArray, defaultValue);
                valueArray = this.__applyMask(valueArray, maskArray, extraPos, fixedCharsReg);
                switch(type){
                    case 'reverse':
                        valueArray.reverse();
                        return (signal || '')+valueArray.join('').substring(valueArray.length-maskArray.length);
                    case 'infinite': case 'repeat':
                        var joinedValue = valueArray.join('');
                        return (maxlength != -1 && valueArray.length >= maxlength)? joinedValue.substring(0, maxlength): joinedValue;
                    default:
                        return valueArray.join('').substring(0, maskArray.length);
                }
                return '';
            },
            // applyes the default value to the result string
            __applyDefaultValue : function(defaultValue){
                var defLen = defaultValue.length,thisLen = this.length,i;
                //removes the leading chars
                for(i=thisLen-1;i>=0;i--){
                    if(this[i]==defaultValue.charAt(0)) this.pop();
                    else break;
                }
                // apply the default value
                for(i=0;i<defLen;i++) if(!this[i])
                    this[i] = defaultValue.charAt(i);
                return this;
            },
            // Removes values that doesnt match the mask from the valueArray
            // Returns the array without the invalid chars.
            __removeInvalidChars : function(valueArray, maskNonFixedCharsArray, repeatType){
                // removes invalid chars
                for(var i=0, y=0; i<valueArray.length; i++ ){
                    if( maskNonFixedCharsArray[y] &&
                        this.rules[maskNonFixedCharsArray[y]] &&
                        !this.rules[maskNonFixedCharsArray[y]].test(valueArray[i]) ){
                            valueArray.splice(i,1);
                            if(!repeatType) y--;
                            i--;
                    }
                    if(!repeatType) y++;
                }
                return valueArray;
            },
            // Apply the current input mask to the valueArray and returns it.
            __applyMask : function(valueArray, maskArray, plus, fixedCharsReg){
                if( typeof plus == 'undefined' ) plus = 0;
                // apply the current mask to the array of chars
                for(var i=0; i<valueArray.length+plus; i++ ){
                    if( maskArray[i] && fixedCharsReg.test(maskArray[i]) )
                        valueArray.splice(i, 0, maskArray[i]);
                }
                return valueArray;
            },
            // searches for fixed chars begining from the range start position, till it finds a non fixed
            __extraPositionsTill : function(rangeStart, maskArray, fixedCharsReg){
                var extraPos = 0;
                while(fixedCharsReg.test(maskArray[rangeStart++])){
                    extraPos++;
                }
                return extraPos;
            },
            __getNextInput: function(input, selector){
                var formEls = input.form.elements,
                    initialInputIndex = $.inArray(input, formEls) + 1,
                    $input = null,
                    i;
                // look for next input on the form of the pased input
                for(i = initialInputIndex; i < formEls.length; i++){
                    $input = $(formEls[i]);
                    if(this.__isNextInput($input, selector))
                        return $input;
                }
                var forms = document.forms,
                    initialFormIndex = $.inArray(input.form, forms) + 1,
                    y, tmpFormEls = null;
                // look for the next forms for the next input
                for(y = initialFormIndex; y < forms.length; y++){
                    tmpFormEls = forms[y].elements;
                    for(i = 0; i < tmpFormEls.length; i++){
                        $input = $(tmpFormEls[i]);
                        if(this.__isNextInput($input, selector))
                            return $input;
                    }
                }
                return null;
            },
            __isNextInput: function($formEl, selector){
                var formEl = $formEl.get(0);
                return formEl
                    && (formEl.offsetWidth > 0 || formEl.offsetHeight > 0)
                    && formEl.nodeName != 'FIELDSET'
                    && (selector === true || (typeof selector == 'string' && $formEl.is(selector)));
            },
            // http://www.bazon.net/mishoo/articles.epl?art_id=1292
            __setRange : function(input, start, end) {
                if(typeof end == 'undefined') end = start;
                if (input.setSelectionRange){
                    input.setSelectionRange(start, end);
                }
                else{
                    // assumed IE
                    var range = input.createTextRange();
                    range.collapse();
                    range.moveStart('character', start);
                    range.moveEnd('character', end - start);
                    range.select();
                }
            },
            // adaptation from http://digitarald.de/project/autocompleter/
            __getRange : function(input){
                if (!$.browser.msie) return {start: input.selectionStart, end: input.selectionEnd};
                var pos = {start: 0, end: 0},
                    range = document.selection.createRange();
                pos.start = 0 - range.duplicate().moveStart('character', -100000);
                pos.end = pos.start + range.text.length;
                return pos;
            },
            //deprecated
            unmaskedVal : function(el){
                return $(el).val().replace($.mask.fixedCharsRegG, '');
            }
        }
    });
    $.fn.extend({
        setMask : function(options){
            return $.mask.set(this, options);
        },
        unsetMask : function(){
            return $.mask.unset(this);
        },
        //deprecated
        unmaskedVal : function(){
            return $.mask.unmaskedVal(this[0]);
        }
    });
})(jQuery);