formist/lib/form.js

var Tag = require('./tag'),
	wrappers = require('./wrappers');

var Form = module.exports = function Form (options, elements) {

	// default the options object
	this.options = options || {};

	// default the attributes object
	this.attributes = this.options.attributes || {};

	// default the elements object
	this.elements = elements || [];

	// default the render value
	this.renderTag = (this.options.renderTag === undefined) ? true : this.options.renderTag;

	// default the theme object
	this.options.theme = this.options.theme || {};

	// default the form wrapper to no-op
	this.options.theme.form = this.options.theme.form || wrappers.noop;

	// default the fieldset wrapper to no-op
	this.options.theme.fieldset = this.options.theme.fieldset || wrappers.noop;

	// default the fieldgroup wrapper to div
	this.options.theme.fieldgroup = this.options.theme.fieldgroup || {};

	this.options.theme.fieldgroup.group = this.options.theme.fieldgroup.group || wrappers.fieldgroup.group;

	this.options.theme.fieldgroup.fields = this.options.theme.fieldgroup.fields || wrappers.fieldgroup.fields;

	this.options.theme.fieldgroup.field = this.options.theme.fieldgroup.field || wrappers.fieldgroup.field;

	// default the field wrapper to div
	this.options.theme.field = this.options.theme.field || wrappers.field;

	// default the input wrapper to no-op
	this.options.theme.control = this.options.theme.control || wrappers.noop;

};

Form.prototype.render = function (callback) {

	var content = '',
		tag,
		html;

	for (var i = 0; i < this.elements.length; i++) {
		content += this.elements[i].render(this.options.theme);
	}

	tag = new Tag('form', this.attributes, content);

	html = this.options.theme.form((this.renderTag === true ? tag.render() : content), this);

	if (callback) {
		return callback(html);
	}

	return html;

};

Form.prototype.add = function (elObject) {

	this.elements.push(elObject);

	return elObject;

};

Form.prototype.attribute = function (key, value) {
	
	if (value === undefined) {
		return this.attributes[key];
	}

	this.attributes[key] = value;

	// for chaining
	return this;

};