penpot/frontend/src/app/main/ui/ds/controls/combobox.cljs
2025-01-09 12:14:38 +01:00

252 lines
8.5 KiB
Clojure

;; This Source Code Form is subject to the terms of the Mozilla Public
;; License, v. 2.0. If a copy of the MPL was not distributed with this
;; file, You can obtain one at http://mozilla.org/MPL/2.0/.
;;
;; Copyright (c) KALEIDOS INC
(ns app.main.ui.ds.controls.combobox
(:require-macros
[app.common.data.macros :as dm]
[app.main.style :as stl])
(:require
[app.main.ui.ds.controls.shared.options-dropdown :refer [options-dropdown*]]
[app.main.ui.ds.foundations.assets.icon :refer [icon* icon-list] :as i]
[app.util.array :as array]
[app.util.dom :as dom]
[app.util.keyboard :as kbd]
[app.util.object :as obj]
[rumext.v2 :as mf]))
(def listbox-id-index (atom 0))
(defn- get-option
[options id]
(array/find #(= id (obj/get % "id")) options))
(defn- handle-focus-change
[options focused* new-index options-nodes-refs]
(let [option (aget options new-index)
id (obj/get option "id")
nodes (mf/ref-val options-nodes-refs)
node (obj/get nodes id)]
(reset! focused* id)
(dom/scroll-into-view-if-needed! node)))
(defn- handle-selection
[focused* selected* open*]
(when-let [focused (deref focused*)]
(reset! selected* focused))
(reset! open* false)
(reset! focused* nil))
(def ^:private schema:combobox-option
[:and
[:map {:title "option"}
[:id :string]
[:icon {:optional true}
[:and :string [:fn #(contains? icon-list %)]]]
[:label {:optional true} :string]
[:aria-label {:optional true} :string]]
[:fn {:error/message "invalid data: missing required props"}
(fn [option]
(or (and (contains? option :icon)
(or (contains? option :label)
(contains? option :aria-label)))
(contains? option :label)))]])
(def ^:private schema:combobox
[:map
[:options [:vector {:min 1} schema:combobox-option]]
[:class {:optional true} :string]
[:disabled {:optional true} :boolean]
[:default-selected {:optional true} :string]
[:on-change {:optional true} fn?]])
(mf/defc combobox*
{::mf/props :obj
::mf/schema schema:combobox}
[{:keys [options class disabled default-selected on-change] :rest props}]
(let [open* (mf/use-state false)
open (deref open*)
selected* (mf/use-state default-selected)
selected (deref selected*)
focused* (mf/use-state nil)
focused (deref focused*)
has-focus* (mf/use-state false)
has-focus (deref has-focus*)
dropdown-options
(mf/use-memo
(mf/deps options selected)
(fn []
(->> options
(array/filter (fn [option]
(let [lower-option (.toLowerCase (obj/get option "id"))
lower-filter (.toLowerCase selected)]
(.includes lower-option lower-filter)))))))
on-click
(mf/use-fn
(mf/deps disabled)
(fn [event]
(dom/stop-propagation event)
(when-not disabled
(reset! has-focus* true)
(if (= "INPUT" (.-tagName (.-target event)))
(reset! open* true)
(swap! open* not)))))
on-option-click
(mf/use-fn
(mf/deps on-change)
(fn [event]
(let [node (dom/get-current-target event)
id (dom/get-data node "id")]
(reset! selected* id)
(reset! focused* nil)
(reset! open* false)
(when (fn? on-change)
(on-change id)))))
options-nodes-refs (mf/use-ref nil)
options-ref (mf/use-ref nil)
listbox-id-ref (mf/use-ref (dm/str "listbox-" (swap! listbox-id-index inc)))
listbox-id (mf/ref-val listbox-id-ref)
combobox-ref (mf/use-ref nil)
set-ref
(mf/use-fn
(fn [node id]
(let [refs (or (mf/ref-val options-nodes-refs) #js {})
refs (if node
(obj/set! refs id node)
(obj/unset! refs id))]
(mf/set-ref-val! options-nodes-refs refs))))
on-blur
(mf/use-fn
(fn [event]
(let [target (.-relatedTarget event)
outside? (not (.contains (mf/ref-val combobox-ref) target))]
(when outside?
(reset! focused* nil)
(reset! open* false)
(reset! has-focus* false)))))
on-key-down
(mf/use-fn
(mf/deps open focused disabled dropdown-options)
(fn [event]
(when-not disabled
(let [options dropdown-options
focused (deref focused*)
len (alength options)
index (array/find-index #(= (deref focused*) (obj/get % "id")) options)]
(dom/stop-propagation event)
(when (< len 0)
(reset! index len))
(cond
(and (not open) (kbd/down-arrow? event))
(reset! open* true)
open
(cond
(kbd/home? event)
(handle-focus-change options focused* 0 options-nodes-refs)
(kbd/up-arrow? event)
(let [new-index (if (= index -1)
(dec len)
(mod (- index 1) len))]
(handle-focus-change options focused* new-index options-nodes-refs))
(kbd/down-arrow? event)
(let [new-index (if (= index -1)
0
(mod (+ index 1) len))]
(handle-focus-change options focused* new-index options-nodes-refs))
(or (kbd/space? event) (kbd/enter? event))
(when (deref open*)
(dom/prevent-default event)
(handle-selection focused* selected* open*)
(when (fn? on-change)
(on-change focused)))
(kbd/esc? event)
(do (reset! open* false)
(reset! focused* nil))))))))
on-input-change
(mf/use-fn
(fn [event]
(let [value (.-value (.-currentTarget event))]
(reset! selected* value)
(reset! focused* nil)
(when (fn? on-change)
(on-change value)))))
on-focus
(mf/use-fn
(fn [_] (reset! has-focus* true)))
class (dm/str class " " (stl/css :combobox))
selected-option (get-option options selected)
icon (obj/get selected-option "icon")]
(mf/with-effect [options]
(mf/set-ref-val! options-ref options))
[:div {:ref combobox-ref
:class (stl/css-case
:combobox-wrapper true
:focused has-focus)}
[:div {:class class
:on-click on-click
:on-focus on-focus
:on-blur on-blur}
[:span {:class (stl/css-case :combobox-header true
:header-icon (some? icon))}
(when icon
[:> icon* {:icon-id icon
:size "s"
:aria-hidden true}])
[:input {:type "text"
:role "combobox"
:aria-autocomplete "both"
:aria-expanded open
:aria-controls listbox-id
:aria-activedescendant focused
:class (stl/css :input)
:data-testid "combobox-input"
:disabled disabled
:value selected
:on-change on-input-change
:on-key-down on-key-down}]]
[:> :button {:tab-index "-1"
:aria-expanded open
:aria-controls listbox-id
:class (stl/css :button-toggle-list)
:on-click on-click}
[:> icon* {:icon-id i/arrow
:class (stl/css :arrow)
:size "s"
:aria-hidden true
:data-testid "combobox-open-button"}]]]
(when (and open (seq dropdown-options))
[:> options-dropdown* {:on-click on-option-click
:options dropdown-options
:selected selected
:focused focused
:set-ref set-ref
:id listbox-id
:data-testid "combobox-options"}])]))