weavejester.flupot

https://github.com/weavejester/flupot.git

git clone 'https://github.com/weavejester/flupot.git'

(ql:quickload :weavejester.flupot)

---

Flupot

A ClojureScript library for creating React elements, in a similar style to Om's om.dom namespace.

Installation

Add the following to your project :dependencies:

[flupot "0.4.0"]

Basic Usage

Require the flupot.dom namespace:

(ns flupot.example
  (:require [flupot.dom :as dom]))

There is a function for each DOM element:

(dom/div (dom/p "Hello World"))

If the first argument is a map, it's used as the element's attributes:

(dom/div {:class "foo"} (dom/p "Hello World"))

Special React options like :key are also supported.

The class attribute may be specified as a collection:

(dom/p {:class ["foo" "bar"]} "Hello World")

And the style attribute may be specified as a map:

(dom/p {:style {:color :red}} "Hello World")

If one of the child arguments is a seq, it's expanded out automatically:

(dom/ul
 (for [i (range 5)]
   (dom/li {:key i} i)))

Advanced Usage

Flupot can also be used to define your own wrappers around React elements or similar libraries (such as react-pixi). You probably won't need to do this! But just in case…

There are two macros that allow you to do this: defelement-fn and defelement-macro.

defelement-fn generates a function around an element method, with an optional attribute transformation function:

(require '[flupot.core :refer [defelement-fn]])

(defelement-fn span
  :elemf React.DOM.span
  :attrf cljs.core/clj->js)

This generates a function span that wraps React.DOM.span. The attribute map is transformed with the cljs.core/clj->js function.

Complementing this is defelement-macro. This generates a macro that will try to pre-compile as much as possible. If you give the macro the same name as the function defined by defelement-fn, ClojureScript will choose the macro when possible, and fall back to the function otherwise.

(require '[flupot.core :refer [defelement-macro]])

(defelement-macro span
  :elemf React.DOM.span
  :attrf cljs.core/clj->js
  :attrm flupot.core/clj->js)

This macro has third keyword argument, :attrm, which defines a function that is applied inside the macro. The flupot.core/clj->js function mimics cljs.core/clj->js, except that it attempts to perform as much as the conversion as possible during compile time.

License

Copyright © 2016 James Reeves

Distributed under the Eclipse Public License either version 1.0 or (at your option) any later version.