Various jQuery convenience plugins

plugins.js

$.fn.template = function(selector) {
    return $(this).find(selector + '[data-template]').removeAttr('data-template').remove()
}

$.fn.rows = function(columns) {
    var children = $(this).children().get()

    while (children.length) {
        var chunk = children.splice(0, columns)
        $(chunk).wrapAll('<div class="row' + (chunk.length % 2 ? ' uneven' : '') + '">')
    }
}

$.fn.date = function(value, format) {
    return $(this).each(function() {
        return $(this).text(moment(value).format(format))
    })
}

$.fn.number = function() {
    var value = accounting.formatNumber.apply(null, arguments)

    return $(this).each(function() {
        var $target = $(this)

        $target.is(':input') ? $target.val(value) : $target.text(value)
    })
}

$.fn.money = function() {
    var value = accounting.formatMoney.apply(null, arguments)

    return $(this).each(function() {
        return $(this).text(value)
    })
}

$.fn.field = function(name, value) {
    var $field = $(this).find('[name="' + name + '"]')

    if (value !== undefined) {
        return $field.val(value)
    }

    return $.trim($field.val())
}

$.fn.radio = function(name, value) {
    var $options = $(this).find('[name="' + name + '"]')

    if (value !== undefined) {
        return $options.prop('checked', function() {
            return $(this).attr('value') == value
        })
    }

    return $options.filter(':checked').attr('name')
}

$.fn.tooltip = (function() {
    var $window = $(window),
        $body = $(document.body),
        $template = $('<div class="tooltip"></div>')

    var defaults = {
        showDelay: 250,
        hideDelay: 2000,
        removeDelay: 500,
        offsetTop: 10
    }

    return function(text, options) {
        options = _.defaults({}, options, defaults)

        var $target = $(this),
            $tooltip = $template.clone()

        var interval

        function show() {
            $tooltip.addClass('is-showing')
            $body.on('mousedown touchstart keydown', hide)
            $window.on('resize', move)

            move()

            if (options.hideDelay > 0) {
                interval = setTimeout(hide, options.showDelay + options.hideDelay)
            }
        }

        // TODO: This is a bit jittery in iOS
        function move() {
            var offset = $target.offset()
            offset.top -= $tooltip.outerHeight() + options.offsetTop
            offset.left += ($target.outerWidth() - $tooltip.outerWidth()) * 0.5

            $tooltip.offset(offset)
        }

        function hide() {
            $tooltip.removeClass('is-showing').addClass('is-hiding')
            $body.off('mousedown touchstart keydown', hide)

            clearInterval(interval)
            setTimeout(remove, options.removeDelay)
        }

        function remove() {
            $tooltip.remove()
            $window.off('resize', move)
        }

        $tooltip.text(text)
        $tooltip.insertAfter($target)

        interval = setTimeout(show, options.showDelay)

        return $tooltip
    }
}())