Minor refactor on shortcuts mixin.

src/uxbox/ui/workspace.cljs

@@ -15,7 +15,7 @@
             [uxbox.ui.keyboard :as kbd]
             [uxbox.ui.workspace.scroll :as scroll]
             [uxbox.ui.workspace.base :as wb]
-            [uxbox.ui.workspace.shortcuts :as shortcuts]
+            [uxbox.ui.workspace.shortcuts :refer (shortcuts-mixin)]
             [uxbox.ui.workspace.header :refer (header)]
             [uxbox.ui.workspace.rules :refer (horizontal-rule vertical-rule)]
             [uxbox.ui.workspace.sidebar :refer (left-sidebar right-sidebar)]
@@ -142,5 +142,5 @@
     :name "workspace"
     :mixins [mx/static
              rum/reactive
-             shortcuts/mixin
+             shortcuts-mixin
              (mx/local)]}))

src/uxbox/ui/workspace/shortcuts.cljs

@@ -6,7 +6,6 @@
 ;; Copyright (c) 2015-2016 Juan de la Cruz <delacruzgarciajuan@gmail.com>
 
 (ns uxbox.ui.workspace.shortcuts
-  (:require-macros [uxbox.util.syntax :refer [define-once]])
   (:require [goog.events :as events]
             [beicon.core :as rx]
             [uxbox.rstore :as rs]
@@ -18,15 +17,9 @@
            goog.ui.KeyboardShortcutHandler
            goog.ui.KeyboardShortcutHandler))
 
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;; Keyboard Shortcuts Handlers
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+(declare move-selected)
 
-(defn move-selected
-  [dir speed]
-  (case speed
-    :std (rs/emit! (dw/move-selected dir 1))
-    :fast (rs/emit! (dw/move-selected dir 20))))
+;; --- Shortcuts
 
 (defonce ^:const +shortcuts+
   {:ctrl+g #(rs/emit! (dw/toggle-flag :grid))
@@ -53,18 +46,12 @@
    :right #(move-selected :right :std)
    :left #(move-selected :left :std)})
 
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;; Keyboard Shortcuts Watcher
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; --- Shortcuts Setup Functions
 
-(defonce ^:const ^:private +bus+
-  (rx/bus))
-
-(defonce ^:const +stream+ +bus+)
-
-(defn- init-handler
-  []
+(defn- watch-shortcuts
+  [sink]
   (let [handler (KeyboardShortcutHandler. js/document)]
+
     ;; Register shortcuts.
     (doseq [item (keys +shortcuts+)]
       (let [identifier (name item)]
@@ -72,38 +59,44 @@
 
     ;; Initialize shortcut listener.
     (let [event KeyboardShortcutHandler.EventType.SHORTCUT_TRIGGERED
-          callback #(rx/push! +bus+ (keyword (.-identifier %)))
+             callback #(sink (keyword (.-identifier %)))
           key (events/listen handler event callback)]
       (fn []
         (events/unlistenByKey key)
         (.clearKeyListener handler)))))
 
-(define-once :subscriptions
-  (rx/on-value +stream+ #(println "[debug]: shortcut:" %))
-  (rx/on-value +stream+ (fn [event]
+(defn- initialize
+  []
+  (let [stream (->> (rx/create watch-shortcuts)
+                    (rx/pr-log "[debug]: shortcut:"))]
+    (rx/on-value stream (fn [event]
                           (when-let [handler (get +shortcuts+ event)]
-                            (handler)))))
+                            (handler))))))
 
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;; Keyboard Shortcuts Mixin
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; --- Helpers
 
-(defn -will-mount
+(defn- move-selected
+  [dir speed]
+  (case speed
+    :std (rs/emit! (dw/move-selected dir 1))
+    :fast (rs/emit! (dw/move-selected dir 20))))
+
+;; --- Mixin
+
+(defn- will-mount
   [own]
-  (let [sub (init-handler)]
-    (assoc own ::subscription sub)))
+  (assoc own ::sub (initialize)))
 
-(defn -will-unmount
+(defn- will-unmount
   [own]
-  (let [sub (::subscription own)]
-    (sub)
-    (dissoc own ::subscription)))
+  (.close (::sub own))
+  (dissoc own ::sub))
 
-(defn -transfer-state
-  [old-own own]
-  (assoc own ::subscription (::subscription old-own)))
+(defn- transfer-state
+  [oldown own]
+  (assoc own ::sub (::sub oldown)))
 
-(def mixin
-  {:will-mount -will-mount
-   :will-unmount -will-unmount
-   :transfer-state -transfer-state})
+(def shortcuts-mixin
+  {:will-mount will-mount
+   :will-unmount will-unmount
+   :transfer-state transfer-state})