lineheight.js

// redactor-plugins-lineheight
// lineheight.js

if (!RedactorPlugins) var RedactorPlugins = {};

(function($)
{
    RedactorPlugins.lineheight = function()
    {
        return {
            init: function()
            {
                var heights = [1, 1.25, 1.5, 2, 2.5, 3],
                    that = this,
                    dropdown = {};

                $.each(heights, function(i, s)
                {
                    dropdown["s" + i] = {
                        title: s + "em", func: function() {
                            that.lineheight.set(s);
                        }
                    };
                });

                dropdown.remove = {
                    title: "Remove Line Height",
                    func: that.lineheight.reset
                };
                var button = this.button.add("lineheight", "Change Line Height");
                this.button.setAwesome("lineheight", "fa-arrows-v");
                this.button.addDropdown(button, dropdown);
            },
            set: function(height)
            {
                this.inline.format("span", "style", "line-height: " + height + "em;");
            },
            reset: function()
            {
                this.inline.removeStyleRule("line-height");
            }
        };
    };
})(jQuery);