♻️ Improves shortcuts lifecycle management.

frontend/src/app/main/data/shortcuts.cljs

@@ -5,14 +5,22 @@
 ;; Copyright (c) UXBOX Labs SL
 
 (ns app.main.data.shortcuts
+  (:refer-clojure :exclude [meta reset!])
   (:require
    ["mousetrap" :as mousetrap]
+   [app.common.data :as d]
+   [app.common.spec :as us]
    [app.config :as cfg]
-   [app.util.logging :as log])
-  (:refer-clojure :exclude [meta]))
+   [app.util.logging :as log]
+   [cljs.spec.alpha :as s]
+   [potok.core :as ptk]))
 
 (log/set-level! :warn)
 
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Helpers
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
 (def mac-command "\u2318")
 (def mac-option  "\u2325")
 (def mac-delete  "\u232B")
@@ -44,30 +52,8 @@
   [shortcut]
   (c-mod (a-mod shortcut)))
 
-(defn bind-shortcuts
-  ([shortcuts-config]
-   (bind-shortcuts
-    shortcuts-config
-    mousetrap/bind
-    (fn [key cb]
-      (fn [event]
-        (log/debug :msg (str "Shortcut" key))
-        (.preventDefault event)
-        (cb event)))))
-
-  ([shortcuts-config bind-fn cb-fn]
-   (doseq [[key {:keys [command disabled fn type]}] shortcuts-config]
-     (when-not disabled
-       (if (vector? command)
-         (doseq [cmd (seq command)]
-           (bind-fn cmd (cb-fn key fn) type))
-         (bind-fn command (cb-fn key fn) type))))))
-
-(defn remove-shortcuts
-    []
-    (mousetrap/reset))
-
-(defn meta [key]
+(defn meta
+  [key]
   ;; If the key is "+" we need to surround with quotes
   ;; otherwise will not be very readable
   (let [key (if (and (not (cfg/check-platform? :macos))
@@ -80,37 +66,120 @@
        "Ctrl+")
      key)))
 
-(defn shift [key]
+(defn shift
+  [key]
   (str
    (if (cfg/check-platform? :macos)
      mac-shift
      "Shift+")
    key))
 
-(defn alt [key]
+(defn alt
+  [key]
   (str
    (if (cfg/check-platform? :macos)
      mac-option
      "Alt+")
    key))
 
-(defn meta-shift [key]
+(defn meta-shift
+  [key]
   (-> key meta shift))
 
-(defn meta-alt [key]
+(defn meta-alt
+  [key]
   (-> key meta alt))
 
-(defn supr []
+(defn supr
+  []
   (if (cfg/check-platform? :macos)
     mac-delete
     "Supr"))
 
-(defn esc []
+(defn esc
+  []
   (if (cfg/check-platform? :macos)
     mac-esc
     "Escape"))
 
-(defn enter []
+(defn enter
+  []
   (if (cfg/check-platform? :macos)
     mac-enter
     "Enter"))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Events
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;; --- EVENT: push
+
+(s/def ::tooltip ::us/string)
+(s/def ::fn fn?)
+
+(s/def ::command
+  (s/or :str ::us/string
+        :vec vector?))
+
+(s/def ::shortcut
+  (s/keys :req-un [::command]
+          :opt-un [::fn
+                   ::tooltip]))
+
+(s/def ::shortcuts
+  (s/map-of ::us/keyword
+            ::shortcut))
+
+(defn- wrap-cb
+  [key cb]
+  (fn [event]
+    (log/debug :msg (str "Shortcut" key))
+    (.preventDefault event)
+    (cb event)))
+
+(defn- bind!
+  [shortcuts]
+  (->> shortcuts
+       (remove #(:disabled (second %)))
+       (run! (fn [[key {:keys [command fn type]}]]
+               (if (vector? command)
+                 (run! #(mousetrap/bind % (wrap-cb key fn) type) command)
+                 (mousetrap/bind command (wrap-cb key fn) type))))))
+
+(defn- reset!
+  ([]
+   (mousetrap/reset))
+  ([shortcuts]
+   (mousetrap/reset)
+   (bind! shortcuts)))
+
+(defn push-shortcuts
+  [key shortcuts]
+  (us/assert ::us/keyword key)
+  (us/assert ::shortcuts shortcuts)
+  (ptk/reify ::push-shortcuts
+    ptk/UpdateEvent
+    (update [_ state]
+      (-> state
+          (update :shortcuts (fnil conj '()) [key shortcuts])))
+
+    ptk/EffectEvent
+    (effect [_ state stream]
+      (let [[key shortcuts] (peek (:shortcuts state))]
+        (reset! shortcuts)))))
+
+(defn pop-shortcuts
+  [key]
+  (ptk/reify ::pop-shortcuts
+    ptk/UpdateEvent
+    (update [_ state]
+      (update state :shortcuts (fn [shortcuts]
+                                 (let [current-key (first (peek shortcuts))]
+                                   (if (= key current-key)
+                                     (pop shortcuts)
+                                     shortcuts)))))
+    ptk/EffectEvent
+    (effect [_ state stream]
+      (let [[key* shortcuts] (peek (:shortcuts state))]
+        (when (not= key key*)
+          (reset! shortcuts))))))

frontend/src/app/main/data/workspace/shortcuts.cljs

@@ -33,7 +33,7 @@
    :toggle-assets     {:tooltip (ds/alt "I")
                        :command (ds/a-mod "i")
                        :fn #(st/emit! (dw/go-to-layout :assets))}
-   
+
    :toggle-history    {:tooltip (ds/alt "H")
                        :command (ds/a-mod "h")
                        :fn #(st/emit! (dw/go-to-layout :document-history))}
@@ -45,7 +45,7 @@
    :toggle-rules      {:tooltip (ds/meta-shift "R")
                        :command (ds/c-mod "shift+r")
                        :fn #(st/emit! (dw/toggle-layout-flags :rules))}
-   
+
    :select-all        {:tooltip (ds/meta "A")
                        :command (ds/c-mod "a")
                        :fn #(st/emit! (dw/select-all))}
@@ -73,7 +73,7 @@
    :decrease-zoom      {:tooltip "-"
                         :command "-"
                         :fn #(st/emit! (dw/decrease-zoom nil))}
-   
+
    :group              {:tooltip (ds/meta "G")
                         :command (ds/c-mod "g")
                         :fn #(st/emit! dw/group-selected)}
@@ -173,7 +173,8 @@
 
    :paste              {:tooltip (ds/meta "V")
                         :disabled true
-                        :command (ds/c-mod "v")}
+                        :command (ds/c-mod "v")
+                        :fn (constantly nil)}
 
    :delete             {:tooltip (ds/supr)
                         :command ["del" "backspace"]

frontend/src/app/main/ui/handoff.cljs

@@ -91,7 +91,7 @@
               (events/unlistenByKey key1))))]
 
     (mf/use-effect on-mount)
-    (hooks/use-shortcuts sc/shortcuts)
+    (hooks/use-shortcuts ::handoff sc/shortcuts)
 
     [:div.handoff-layout {:class (dom/classnames :force-visible
                                                  (:show-thumbnails state))}

frontend/src/app/main/ui/hooks.cljs

@@ -9,10 +9,11 @@
   (:require
    [app.common.spec :as us]
    [app.main.data.shortcuts :as dsc]
+   [app.main.store :as st]
    [app.util.dom :as dom]
-   [app.util.object :as obj]
    [app.util.dom.dnd :as dnd]
    [app.util.logging :as log]
+   [app.util.object :as obj]
    [app.util.timers :as ts]
    [app.util.transit :as t]
    [app.util.webapi :as wapi]
@@ -35,11 +36,13 @@
     state))
 
 (defn use-shortcuts
-  [shortcuts]
+  [key shortcuts]
   (mf/use-effect
+   #js [(str key) shortcuts]
    (fn []
-     (dsc/bind-shortcuts shortcuts)
-     (fn [] (dsc/remove-shortcuts)))))
+     (st/emit! (dsc/push-shortcuts key shortcuts))
+     (fn []
+       (st/emit! (dsc/pop-shortcuts key))))))
 
 (defn invisible-image
   []

frontend/src/app/main/ui/viewer.cljs

@@ -237,7 +237,7 @@
               (events/unlistenByKey key3))))]
 
     (mf/use-effect on-mount)
-    (hooks/use-shortcuts sc/shortcuts)
+    (hooks/use-shortcuts ::viewer sc/shortcuts)
 
     [:div.viewer-layout {:class (dom/classnames :force-visible
                                                 (:show-thumbnails state))}

frontend/src/app/main/ui/workspace/viewport/hooks.cljs

@@ -153,18 +153,6 @@
           (utils/update-transform render-node roots modifiers)
           (utils/remove-transform render-node roots))))))
 
-(defn setup-shortcuts [path-editing? drawing-path?]
-  (mf/use-effect
-   (mf/deps path-editing? drawing-path?)
-   (fn []
-     (cond
-       (or drawing-path? path-editing?)
-       (dsc/bind-shortcuts psc/shortcuts)
-
-       :else
-       (dsc/bind-shortcuts wsc/shortcuts))
-     dsc/remove-shortcuts)))
-
 (defn inside-vbox [vbox objects frame-id]
   (let [frame (get objects frame-id)]
 
@@ -195,3 +183,17 @@
                       (:frame-id @hover))]
        (when (not (contains? @active-frames frame-id))
          (swap! active-frames assoc frame-id true))))))
+
+;; NOTE: this is executed on each page change, maybe we need to move
+;; this shortcuts outside the viewport?
+
+(defn setup-shortcuts
+  [path-editing? drawing-path?]
+  (hooks/use-shortcuts ::workspace wsc/shortcuts)
+
+  (mf/use-effect
+   (mf/deps path-editing? drawing-path?)
+   (fn []
+     (when (or drawing-path? path-editing?)
+       (st/emit! (dsc/push-shortcuts ::path psc/shortcuts))
+       (st/emitf (dsc/pop-shortcuts ::path))))))