Cando grid issue

[MahammadMoine]

/*

• Dirty 0.8.3
• jquery plugin to detect when a form is modified
• (c) 2016 Simon Taite - https://github.com/simon-reynolds/jquery.dirty
• originally based on jquery.dirrty by Ruben Torres - https://github.com/rubentd/dirrty
• Released under the MIT license
  */

(function ($) {

//Save dirty instances
var singleDs = [];
var dirty = "dirty";
var clean = "clean";
var dataInitialValue = "dirtyInitialValue";
var dataIsDirty = "isDirty";
var formIsDirty = false;
var $el;
var thisIsDirty;
var result;
var $this;
var $e;
var initialValue;
var currentValue;


var getSingleton = function (id) {
    singleDs.forEach(function (e) {
        if (e.id === id) {
            result = e;
        }
    });
    return result;
};

var setSubmitEvents = function (d) {
    d.form.on("submit", function () {
        d.submitting = true;
    });

    if (d.options.preventLeaving) {
        $(window).on("beforeunload", function (event) {
            if (d.isDirty && !d.submitting) {
                event.preventDefault();
                return d.options.leavingMessage;
            }
        });
    }
};

var setNamespacedEvents = function (d) {

    d.form.find("input, select, textarea").on("change.dirty click.dirty keyup.dirty keydown.dirty blur.dirty", function (e) {
        d.checkValues(e);
    });

    d.form.on("dirty", function () {
        d.options.onDirty();
    });

    d.form.on("clean", function () {
        d.options.onClean();
    });
};

var clearNamespacedEvents = function (d) {
    d.form.find("input, select, textarea").off("change.dirty click.dirty keyup.dirty keydown.dirty blur.dirty");

    d.form.off("dirty");

    d.form.off("clean");
};

var Dirty = function (form, options) {
    this.form = form;
    this.isDirty = false;
    this.options = options;
    this.history = [clean, clean]; //Keep track of last statuses
    this.id = $(form).attr("id");
    singleDs.push(this);
};

Dirty.prototype = {
    init: function () {
        this.saveInitialValues();
        this.setEvents();
    },

    isRadioOrCheckbox: function (el) {
        return $(el).is(":radio, :checkbox");
    },

    isFileInput: function (el) {
        return $(el).is(":file")
    },

    saveInitialValues: function () {
        $this = this;
        this.form.find("input, select, textarea").each(function (_, e) {
            if ($this.isRadioOrCheckbox(e)) {
                $(e).data(dataInitialValue, ($(e).is(":checked") ? "checked" : "unchecked"));
            } else if ($this.isFileInput(e)) {
                $(e).data(dataInitialValue, JSON.stringify(e.files))
            } else {
                $(e).data(dataInitialValue, $(e).val() || '');
            }
        });
    },

    refreshEvents: function () {
        clearNamespacedEvents(this);
        setNamespacedEvents(this);
    },

    showDirtyFields: function () {
        return this.form.find("input, select, textarea").filter(function (_, e) {
            return $(e).data("isDirty");
        });
    },

    setEvents: function () {
        setSubmitEvents(this);
        setNamespacedEvents(this);
    },

    isFieldDirty: function ($field) {
        initialValue = $field.data(dataInitialValue);
        // Explicitly check for null/undefined here as value may be `false`, so ($field.data(dataInitialValue) || '') would not work
        if (initialValue == null) { initialValue = ''; }
        currentValue = $field.val();
        if (currentValue == null) { currentValue = ''; }

        // Boolean values can be encoded as "true/false" or "True/False" depending on underlying frameworks so we need a case insensitive comparison
        if ((/^(true|false)$/i).test(initialValue) && (/^(true|false)$/i).test(currentValue)) {
            return !(new RegExp("^" + initialValue + "$", "i")).test(currentValue);
        }

        return currentValue !== initialValue;
    },

    isFileInputDirty: function ($field) {
        return JSON.stringify(($field[0]).files) !== $field.data(dataInitialValue);
    },

    isCheckboxDirty: function ($field) {
        return $field.data(dataInitialValue) !== $field.is(":checked") ? "checked" : "unchecked";
    },

    checkValues: function (e) {
        $this = this;
        formIsDirty = false;            

        this.form.find("input, select, textarea").each(function (_, el) {
            $el = $(el);
            
            if ($this.isRadioOrCheckbox(el)) {
                thisIsDirty = $this.isCheckboxDirty($el);
            } else if ($this.isFileInput(el)) {
                thisIsDirty = $this.isFileInputDirty($el);
            } else {
                thisIsDirty = $this.isFieldDirty($el);
            }

            $el.data(dataIsDirty, thisIsDirty);

            formIsDirty |= thisIsDirty;
        });

        if (formIsDirty) {
            $this.setDirty();
        } else {
            $this.setClean();
        }
    },

    setDirty: function () {
        this.isDirty = true;
        this.history[0] = this.history[1];
        this.history[1] = dirty;

        if (this.options.fireEventsOnEachChange || this.wasJustClean()) {
            this.form.trigger("dirty");
        }
    },

    setClean: function () {
        this.isDirty = false;
        this.history[0] = this.history[1];
        this.history[1] = clean;

        if (this.options.fireEventsOnEachChange || this.wasJustDirty()) {
            this.form.trigger("clean");
        }
    },

    //Lets me know if the previous status of the form was dirty
    wasJustDirty: function () {
        return (this.history[0] === dirty);
    },

    //Lets me know if the previous status of the form was clean
    wasJustClean: function () {
        return (this.history[0] === clean);
    },

    setAsClean: function () {
        this.saveInitialValues();
        this.setClean();
    },

    setAsDirty: function () {
        this.saveInitialValues();
        this.setDirty();
    },

    resetForm: function () {
        $this = this;
        this.form.find("input, select, textarea").each(function (_, e) {
            $e = $(e);
            if ($this.isRadioOrCheckbox(e)) {
                $e.prop("checked", ($e.data(dataInitialValue) === "checked"));
            } if ($this.isFileInput(e)) {
                e.value = "";
                $(e).data(dataInitialValue, JSON.stringify(e.files))

            } else {
                $e.val($e.data(dataInitialValue));
            }
        });

        this.checkValues();
    }
};

$.fn.dirty = function (options) {

    if (typeof options === "string" && /^(isDirty|isClean|refreshEvents|resetForm|setAsClean|setAsDirty|showDirtyFields)$/i.test(options)) {
        //Check if we have an instance of dirty for this form
        // TODO: check if this is DOM or jQuery object
        $this = getSingleton($(this).attr("id"));

        if (!$this) {
            $this = new Dirty($(this), options);
            $this.init();
        }

        switch (options.toLowerCase()) {
            case "isclean":
                return !$this.isDirty;
            case "isdirty":
                return $this.isDirty;
            case "refreshevents":
                $this.refreshEvents();
            case "resetform":
                $this.resetForm();
            case "setasclean":
                return $this.setAsClean();
            case "setasdirty":
                return $this.setAsDirty();
            case "showdirtyfields":
                return $this.showDirtyFields();
        }

    } else if (typeof options === "object" || !options) {

        return this.each(function (_, e) {
            options = $.extend({}, $.fn.dirty.defaults, options);
            (new Dirty($(e), options)).init();
        });

    }
};

$.fn.dirty.defaults = {
    preventLeaving: false,
    leavingMessage: "There are unsaved changes on this page which will be discarded if you continue.",
    onDirty: $.noop, //This function is fired when the form gets dirty
    onClean: $.noop, //This funciton is fired when the form gets clean again
    fireEventsOnEachChange: false, // Fire onDirty/onClean on each modification of the form
};

})(jQuery);