include('uki.js');

/**
 * @namespace
 */
uki.theme = {
    themes: [],
    
    register: function(theme) {
        uki.theme.themes.push(theme);
    },
    
    background: function(name, params) {
        return uki.theme._namedResource(name, 'background', params) || new uki.background.Null();
    },
    
    image: function(name, params) {
        return uki.theme._namedResource(name, 'image', params) || new Image();
    },
    
    imageSrc: function(name, params) {
        return uki.theme._namedResource(name, 'imageSrc', params) || '';
    },
    
    style: function(name, params) {
        return uki.theme._namedResource(name, 'style', params) || '';
    },
    
    dom: function(name, params) {
        return uki.theme._namedResource(name, 'dom', params) || uki.createElement('div');
    },
    
    template: function(name, params) {
        return uki.theme._namedResource(name, 'template', params) || '';
    },
    
    _namedResource: function(name, type, params) {
        for (var i = uki.theme.themes.length - 1; i >= 0; i--){
            var result = uki.theme.themes[i][type](name, params);
            if (result) return result;
        };
        return null;
        
    }
};