/*@
Ox.Editable <f> Editable element
    () ->              <f> Input Element
    (options) ->       <f> Input Element
    (options, self) -> <f> Input Element
    options <o> Options object
        editing <b|false> If true, loads in editing state
        format <f|null> Format function
            (value) -> <s> Formatted value
            value <s> Input value
    self <o> Shared private variable
@*/
Ox.Editable = function(options, self) {

    self = self || {};
    that = Ox.Element('<div>', self)
        .defaults({
            editing: false,
            format: null,
            value: '',
            type: 'input'
        })
        .options(options || {})
        .addClass('OxEditable')
        .bindEvent({
            doubleclick: edit
        });

    self.$value = Ox.Element(self.options.type == 'input' ? '<span>' : '<div>')
        .addClass('OxValue')
        .css(self.options.type == 'input' ? {
            //height: '14px',
            //padding: '1px 4px 1px 4px',
            //border: '1px solid transparent'
        } : {
            padding: '0 4px 0 4px'
        })
        .html(
            self.options.format
            ? self.options.format(self.options.value)
            : self.options.value
        )
        //[self.options.editing ? 'hide' : 'show']()
        .appendTo(that);

    self.$input = Ox.Input({
            changeOnKeypress: true,
            style: 'square',
            type: self.options.type,
            value: self.options.value
        })
        .bindEvent({
            blur: submit,
            cancel: cancel,
            change: change,
            submit: submit
        })
        //[self.options.editing ? 'show' : 'hide']()
        .hide()
        .appendTo(that.$element);

    if (self.options.editing) {
        self.options.editing = false;
        edit();
    }

    function cancel() {
        self.$input.hide();
        self.$value.show();
        self.options.editing = false;
    }

    function change(event) {
        var height, width;
        self.options.value = event.value;
        if (self.options.type == 'input') {
            self.options.value = self.options.value.replace(/ /g, '&nbsp;');
        } else if (Ox.endsWith(self.options.value, '\n')) {
            self.options.value += '&nbsp;';
        }
        self.$value.html(
            self.options.format
            ? self.options.format(self.options.value)
            : self.options.value
        );
        height = self.$value.height();
        width = self.$value.width();
        if (self.options.type == 'input') {
            self.$input.options({
                height: height,
                width: width + 2
            });
            self.$input.find('input').css({width: width + 2 + 'px'});
        } else {
            self.$input.options({
                height: height,
                width: width + Ox.UI.SCROLLBAR_SIZE
            });
            self.$input.find('textarea').css({
                height: height + 'px',
                width: width + Ox.UI.SCROLLBAR_SIZE + 'px'
            });
        }
        
        self.$input.find('input').css({width: width + 2})
        
        /*
        that.triggerEvent('change', {
            value: event.value
        });
        */
    }

    function edit() {
        var height, width;
        if (!self.options.editing) {
            height = self.$value.height();
            width = self.$value.width();
            self.$value.hide();
            self.$input.options({
                height: height,
                width: width
            }).show();
            if (self.options.type == 'input') {
                self.$input.find('input').css({width: width + 'px'});
            } else {
                self.$input.find('textarea').css({
                    height: height + 'px',
                    width: width + Ox.UI.SCROLLBAR_SIZE + 'px'
                });
            }
            // fixme: why can't this be chained?
            setTimeout(function() {
                self.$input.focusInput(false);
            }, 0);
            self.options.editing = true;
        }
    }

    function submit() {
        self.options.value = self.$input.value();
        self.$value.html(
            self.options.format
            ? self.options.format(self.options.value)
            : self.options.value
        );
        cancel();
    }

    that.css = function(obj) {
        that.$element.css(obj);
        self.$value.css(obj);
        self.$input.css(obj);
        self.$input.find('input').css(obj);
        //self.$value.css.apply(this, arguments);
        //self.$input.css.apply(this, arguments);
        return that
    };

    return that;

};