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September 25, 2018 13:07
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| (ns rnstyles.core | |
| (:require [clojure.string :as cstr]) | |
| (:import (cljs.tagged_literals JSValue))) | |
| ;; Sablono's stuff | |
| ;; Converting Clojure data into ClojureScript (JS) | |
| ;; ==================================================== | |
| (defprotocol IJSValue | |
| (to-js [x])) | |
| (defn- to-js-map [m] | |
| (JSValue. (into {} (map (fn [[k v]] [k (to-js v)])) m))) | |
| (extend-protocol IJSValue | |
| clojure.lang.Keyword | |
| (to-js [x] | |
| (if (qualified-keyword? x) | |
| (str (namespace x) "/" (name x)) | |
| (name x))) | |
| clojure.lang.PersistentArrayMap | |
| (to-js [x] | |
| (to-js-map x)) | |
| clojure.lang.PersistentHashMap | |
| (to-js [x] | |
| (to-js-map x)) | |
| clojure.lang.PersistentVector | |
| (to-js [x] | |
| (JSValue. (mapv to-js x))) | |
| Object | |
| (to-js [x] | |
| x) | |
| nil | |
| (to-js [_] | |
| nil)) | |
| ;; ========================================= | |
| (defn kebab->camel [^String method-name] | |
| (cstr/replace | |
| method-name | |
| #"-(\w)" | |
| #(cstr/upper-case (second %1)))) | |
| (defn kebab-k->camel-s [k] | |
| (-> k name kebab->camel)) | |
| (defn clj-css->rn-css [styles] | |
| (->> styles | |
| (map (fn [[k v]] | |
| [(kebab-k->camel-s k) v])) | |
| (into {}))) | |
| (defn make-styles [styles] | |
| (->> styles | |
| (map (fn [[k styles]] | |
| [(name k) (clj-css->rn-css styles)])) | |
| (into {}) | |
| to-js)) | |
| (defmacro defstyles [sym styles] | |
| `(let [s# (.create js/StyleSheet ~(make-styles styles))] | |
| (defn ~sym [k#] | |
| (goog.object/get s# (name k#))))) | |
| (comment | |
| (macroexpand-1 '(defstyles styles {:header {:flex-direction "row"}}))) | |
| ;; (let [s (.create js/StyleSheet #js {:header #js {:flexDirection "row"}})] | |
| ;; (defn styles [k] (goog.object/get s (name k)))) |
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