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util.cljs
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util.cljs
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(ns reagent.impl.util
(:require [reagent.debug :refer-macros [dbg log warn]]
[reagent.interop :refer-macros [$ $!]]
[clojure.string :as string]))
(def is-client (and (exists? js/window)
(-> js/window ($ :document) nil? not)))
(def ^:dynamic ^boolean *non-reactive* false)
;;; Props accessors
;; Misc utilities
(defn memoize-1 [f]
(let [mem (atom {})]
(fn [arg]
(let [v (get @mem arg)]
(if-not (nil? v)
v
(let [ret (f arg)]
(swap! mem assoc arg ret)
ret))))))
(def dont-camel-case #{"aria" "data"})
(defn capitalize [s]
(if (< (count s) 2)
(string/upper-case s)
(str (string/upper-case (subs s 0 1)) (subs s 1))))
(defn dash-to-camel [dashed]
(if (string? dashed)
dashed
(let [name-str (name dashed)
[start & parts] (string/split name-str #"-")]
(if (dont-camel-case start)
name-str
(apply str start (map capitalize parts))))))
(defn fun-name [f]
(let [n (or (and (fn? f)
(or ($ f :displayName)
($ f :name)))
(and (implements? INamed f)
(name f))
(let [m (meta f)]
(if (map? m)
(:name m))))]
(-> n
str
(clojure.string/replace "$" "."))))
(deftype PartialFn [pfn f args]
Fn
IFn
(-invoke [_]
(pfn))
(-invoke [_ a]
(pfn a))
(-invoke [_ a b]
(pfn a b))
(-invoke [_ a b c]
(pfn a b c))
(-invoke [_ a b c d]
(pfn a b c d))
(-invoke [_ a b c d e]
(pfn a b c d e))
(-invoke [_ a b c d e f]
(pfn a b c d e f))
(-invoke [_ a b c d e f g]
(pfn a b c d e f g))
(-invoke [_ a b c d e f g h]
(pfn a b c d e f g h))
(-invoke [_ a b c d e f g h i]
(pfn a b c d e f g h i))
(-invoke [_ a b c d e f g h i j]
(pfn a b c d e f g h i j))
(-invoke [_ a b c d e f g h i j k]
(pfn a b c d e f g h i j k))
(-invoke [_ a b c d e f g h i j k l]
(pfn a b c d e f g h i j k l))
(-invoke [_ a b c d e f g h i j k l m]
(pfn a b c d e f g h i j k l m))
(-invoke [_ a b c d e f g h i j k l m n]
(pfn a b c d e f g h i j k l m n))
(-invoke [_ a b c d e f g h i j k l m n o]
(pfn a b c d e f g h i j k l m n o))
(-invoke [_ a b c d e f g h i j k l m n o p]
(pfn a b c d e f g h i j k l m n o p))
(-invoke [_ a b c d e f g h i j k l m n o p q]
(pfn a b c d e f g h i j k l m n o p q))
(-invoke [_ a b c d e f g h i j k l m n o p q r]
(pfn a b c d e f g h i j k l m n o p q r))
(-invoke [_ a b c d e f g h i j k l m n o p q r s]
(pfn a b c d e f g h i j k l m n o p q r s))
(-invoke [_ a b c d e f g h i j k l m n o p q r s t]
(pfn a b c d e f g h i j k l m n o p q r s t))
(-invoke [_ a b c d e f g h i j k l m n o p q r s t rest]
(apply pfn a b c d e f g h i j k l m n o p q r s t rest))
IEquiv
(-equiv [_ other]
(and (= f (.-f other)) (= args (.-args other))))
IHash
(-hash [_] (hash [f args])))
(defn make-partial-fn [f args]
(->PartialFn (apply partial f args) f args))
(defn- merge-class [p1 p2]
(let [class (when-let [c1 (:class p1)]
(when-let [c2 (:class p2)]
(str c1 " " c2)))]
(if (nil? class)
p2
(assoc p2 :class class))))
(defn- merge-style [p1 p2]
(let [style (when-let [s1 (:style p1)]
(when-let [s2 (:style p2)]
(merge s1 s2)))]
(if (nil? style)
p2
(assoc p2 :style style))))
(defn merge-props [p1 p2]
(if (nil? p1)
p2
(do
(assert (map? p1)
(str "Property must be a map, not " (pr-str p1)))
(merge-style p1 (merge-class p1 (merge p1 p2))))))
(def ^:dynamic *always-update* false)
(defn force-update [comp deep]
(if deep
(binding [*always-update* true]
($ comp forceUpdate))
($ comp forceUpdate)))