/*

//this file copyright Apposite Ltd 2005

*/

add_event(window,'load',init_textboxes);

add_event(window,'load',init_buttons);



/*

select boxes should loose focus on change?

*/





function init_textboxes(){

    //auto selects text in textboxes

    

    var select_all = function(e){

        

        var input = event_obj(e);

        if (input.select){

            input.select();

        }

    }

    

    var inputs = document.getElementsByTagName('input');

    

    for (var i=0; i<inputs.length; i++){

        var input_type = inputs[i].type.toLowerCase();

        if (input_type == "text" || input_type == "password" || input_type == "file"){

            add_event(inputs[i],'focus',select_all);

        }

    }

}



function init_buttons(){

    

    var confirm_action = function(e){

        var ele = KJD.getParentByAttribute(e.target, 'confirm', true);



        var confirm_text = ele.getAttribute('confirm');

        if (confirm_text){

            if (!window.confirm(confirm_text)){

                preventDefault(e);

                cancelBubble(e);

                return false;

            }

        }

    }

    var validate_form = function(e){

        //validates the fields in a form

        //returns true if data is valid (or unable to validate)

        //returns false if data is invalid, and sets focus to the first invalid field

        

        //get the form

        var err_msgs = '';

        var button = event_obj(e);

        var eles = button.form.elements;

    

        

        //go backwards through the fields focusing on any invalid field.

        //this way the focus will be left on the first invalid field.

        for (var i=eles.length-1; i>=0; i--){

            var ele = eles[i];

            var datatype = ele.getAttribute('datatype');

            

            if (datatype && (datatype!='html')){

                

                var msg = '';

                var value = trim(ele.value);

                var friendly_name = ele.name;

                var min = ele.getAttribute('minvalue');

                var max = ele.getAttribute('maxvalue');

                var min_len = ele.getAttribute('minlength');

                var max_len = ele.getAttribute('maxlength');

                

                if (ele.getAttribute('required') && ((value.length==0) || (datatype == 'int' && Number(value)==0))) {

                    msg = friendly_name +' is required.';

                }

                else {

                    switch (datatype){

                    case 'email':

                        var regexp_email = /[\s]*[\w-_\.]+\@[\w]+\.[\w]+[\s]*/;

                        if ((value.length > 0) && !value.match(regexp_email)){

                            msg = "'" + value + "' is not a valid email address.\nPlease enter a valid email address (eg 'someone@hotmail.com').\n"

                        }

                    case 'html':

                    case 'text':

                        if (min_len && (value.length == 0)){

                            msg = "'" + friendly_name + "' required.\n";

                        }

                        if (min_len && (value.length < min_len)){

                            msg = "'" + friendly_name + "' is too short, Minimum length of " + friendly_name + " is " + min_len + " characters.\n";

                        }

                        if (max_len && (value.length > max_len)){

                            msg = "'" + friendly_name + "' is too long, Maximum length of " + friendly_name + " is " + max_len + " characters.\n";

                        }

                        break;

                    

                    case 'real':

                    case 'int':

                        value = (1 * value);

                        if (isNaN(value)){

                            msg = "'" + friendly_name + "' must be a number.";

                        }

                        else if (min && (value < min)){

                            msg = "'" + friendly_name + "' must be greater than "+ min +".";

                        }

                        else if (max && (value > max)){

                            msg = "'" + friendly_name + "' must be no more than "+ max +".";

                        }

                        break;

                        

                    case 'bool':

                        //do nothing always valid

                        break;

                    

                    case 'date':

                        //FIXME: write date check

                        break;

                    

                    case 'time':

                        //FIXME:

                        //if (!value.match(/([0-9]{2})(:[0-9]{2})?(:[0-9]{2})?\s?(am|pm)?/i)){

                        //    msg = "'" + friendly_name + "' must be in a valid time format (eg '6:45 pm' or '18:45')";

                        //}

                        break;

                        

                    default:

                        debug('Unknown datatype "'+ datatype +'"');

                    }

                }

                

                var table = get_parent(ele,'table'); 

                if (msg){

                    //prepend msg to err messages

                    err_msgs = msg +'\n'+ err_msgs;

                    

                    //remove 'updated' class from container



                    replace_class(table,'updated','error');

                    ele.focus();

                }

                else {

                    //remove any update/error styles

                    remove_class(table,'updated,error');

                }

            }

        }

        

        if (err_msgs != ''){

            //one or more errors, don't submit the form

            alert(err_msgs);

            preventDefault(e);

            cancelBubble(e);

            return false;

        }

        else {

            return true;

        }

    }

    

    var inputs = document.getElementsByTagName('input');

    

    for (var i=0; i<inputs.length; i++){

        var input_type = inputs[i].type.toLowerCase();

        if (input_type == "submit"){

            var confirm_text = inputs[i].getAttribute('confirm');

            if (confirm_text){

                add_event(inputs[i],'click',confirm_action);

            }

            else {

                add_event(inputs[i],'click',validate_form);

            }

        }

    }

    

    //confirm links

    var links = KJD.getElementsByAttribute('confirm', 'a');

    

    for (i=0; i<links.length; i++){

        KJD.addEvent(links[i],'click',confirm_action);

    }

}