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feat: add /calc slash command (#2244)

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This commit is contained in:
Devon Zuegel
2021-06-20 23:19:01 -04:00
committed by GitHub
parent bddadd74c5
commit 07e7e42b0e
2 changed files with 33 additions and 0 deletions
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31
src/main/frontend/extensions/code.cljs
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@@ -5,10 +5,12 @@
[goog.object :as gobj]
[frontend.db :as db]
[frontend.extensions.calc :as calc]
[frontend.commands :as commands]
[frontend.state :as state]
[frontend.handler.editor :as editor-handler]
[frontend.handler.file :as file-handler]
[clojure.string :as string]
[dommy.core :as dom]
[frontend.utf8 :as utf8]
["codemirror" :as cm]
["codemirror/addon/edit/matchbrackets"]
@@ -48,6 +50,9 @@
(def from-textarea (gobj/get cm "fromTextArea"))
(def textarea-ref-name "textarea")
(def codemirror-ref-name "codemirror-instance")
(defn- save-file-or-block-when-blur-or-esc!
[editor textarea config state]
(.save editor)
@@ -136,6 +141,8 @@
(reset! esc-pressed? true)
(js/setTimeout #(reset! esc-pressed? false) 10))}}))]
(when editor
(let [textarea-ref (rum/ref-node state textarea-ref-name)]
(gobj/set textarea-ref codemirror-ref-name editor))
(let [element (.getWrapperElement editor)]
(when (= mode "calc")
(.on editor "change" (fn [_cm e]
@@ -184,6 +191,30 @@
"clojure"
mode))]))
[:textarea (merge {:id id
;; Expose the textarea associated with the CodeMirror instance via
;; ref so that we can autofocus into the CodeMirror instance later.
:ref textarea-ref-name
:default-value code} attr)]
(when (= (:data-lang attr) "calc")
(calc/results (:calc-atom state)))])
;; Focus into the CodeMirror editor rather than the normal "raw" editor
(defmethod commands/handle-step :codemirror/focus [[_]]
;; This requestAnimationFrame is necessary because, for some reason, when you
;; type /calculate and then click the "Calculate" command in the dropdown
;; *with your mouse* (but not when you do so via your keyboard with the
;; arrow + enter keys!), React doesn't re-render before the :codemirror/focus
;; command kicks off. As a result, you get an error saying that the node
;; you're trying to focus doesn't yet exist. Adding the requestAnimationFrame
;; ensures that the React component re-renders before the :codemirror/focus
;; command is run. It's not elegant... open to suggestions for how to fix it!
(js/window.requestAnimationFrame
(fn []
(let [block (state/get-edit-block)
block-uuid (:block/uuid block)
block-node (util/get-first-block-by-id block-uuid)]
(editor-handler/select-block! (:block/uuid block))
(let [textarea-ref (.querySelector block-node "textarea")]
(.focus (gobj/get textarea-ref codemirror-ref-name)))
(util/select-unhighlight! (dom/by-class "selected"))
(state/clear-selection!)))))