// vim: et:ts=4:sw=4:sts=4:ft=javascript

'use strict';

/*@
Ox.MenuButton <f> Menu Button
    () -> <f> Menu Button
    (options) -> Menu Button
    (options, self) -> Menu Button
    options <o> Options object
        disabled <b|false> If true, button is disabled
        id <s|''> Element id
        items <a|[]> Menu items
        maxWidth <n|0> Maximum menu width
        style <s|'rounded'> Style ('rounded' or 'square')
        title <s|''> Menu title
        tooltip <s|f|''> Tooltip title, or function that returns one
            (e) -> <string> Tooltip title
            e <object> Mouse event
        type <s|'text'> Type ('text' or 'image')
        width <s|n|'auto'> Width in px, or 'auto'
@*/

Ox.MenuButton = function(options, self) {

    self = self || {};
    var that = Ox.Element({
            tooltip: options.tooltip || ''
        }, self)
        .defaults({
            disabled: false,
            id: '',
            items: [],
            maxWidth: 0,
            style: 'rounded',
            title: '',
            type: 'text',
            width: 'auto'
        })
        .options(options || {})
        .addClass(
            'OxSelect Ox' + Ox.toTitleCase(self.options.style)
        )
        .css(self.options.width == 'auto' ? {} : {
            width: self.options.width - 2 + 'px'
        })
        .bindEvent({
            anyclick: showMenu
        });

    if (self.options.type == 'text') {
        self.$title = $('<div>')
            .addClass('OxTitle')
            .css({width: self.options.width - 24 + 'px'})
            .html(self.options.title)
            .appendTo(that);
    }

    self.$button = Ox.Button({
            id: self.options.id + 'Button',
            style: 'symbol',
            title: self.options.type == 'text' || !self.options.title
                ? 'select' : self.options.title,
            type: 'image'
        })
        .appendTo(that);

    self.$menu = Ox.Menu({
            element: self.$title || self.$button,
            id: self.options.id + 'Menu',
            items: self.options.items,
            maxWidth: self.options.maxWidth,
            side: 'bottom', // FIXME: should be edge
        })
        .bindEvent({
            change: changeMenu,
            click: clickMenu,
            hide: hideMenu
        });

    self.options.type == 'image' && self.$menu.addClass('OxRight');

    function clickMenu(data) {
        that.triggerEvent('click', data);
    }

    function changeMenu(data) {
        that.triggerEvent('change', data);
    }

    function hideMenu(data) {
        that.loseFocus();
        that.removeClass('OxSelected');
        that.triggerEvent('hide');
    }

    function showMenu() {
        that.gainFocus();
        that.addClass('OxSelected');
        self.options.tooltip && that.$tooltip.hide();
        self.$menu.showMenu();
        that.triggerEvent('show');
    }

    self.setOption = function(key, value) {
        if (key == 'title') {
            if (self.options.type == 'text') {
                self.$title.html(value);
            } else {
                self.$button.options({title: value});
            }
        } else if (key == 'width') {
            that.css({width: value - 2 + 'px'});
            self.$title.css({width: self.options.width - 24 + 'px'});
        }
    }

    /*@
    checkItem <f>
    @*/
    that.checkItem = function(id) {
        self.$menu.checkItem(id);
    };

    /*@
    disableItem <f>
    @*/
    that.disableItem = function(id) {
        self.$menu.getItem(id).options({disabled: true});
    };

    /*@
    enableItem <f>
    @*/
    that.enableItem = function(id) {
        self.$menu.getItem(id).options({disabled: false});
    };

    /*@
    remove <f>
    @*/
    self.superRemove = that.remove;
    that.remove = function() {
        self.$menu.remove();
        self.superRemove();
    };

    that.setItemTitle = function(id, title) {
        self.$menu.setItemTitle(id, title);
        return that;
    };

    return that;

};