penpot/frontend/src/app/main/ui/ds/controls/select.cljs

227 lines
7.6 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.select
(:require-macros
[app.main.style :as stl])
(:require
[app.common.data :as d]
[app.main.ui.ds.controls.shared.options-dropdown :refer [options-dropdown* schema:option]]
[app.main.ui.ds.foundations.assets.icon :refer [icon*] :as i]
[app.util.dom :as dom]
[app.util.keyboard :as kbd]
[app.util.object :as obj]
[clojure.string :as str]
[rumext.v2 :as mf]
[rumext.v2.util :as mfu]))
(defn get-option
[options id]
(let [options (if (delay? options) @options options)]
(or (d/seek #(= id (get % :id)) options)
(nth options 0))))
(defn- get-selected-option-id
[options default]
(let [option (get-option options default)]
(get option :id)))
;; Also used in combobox
(defn handle-focus-change
[options focused* new-index nodes]
(let [option (get options new-index)
id (get option :id)
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:select
[:map
[:options [:vector {:min 1} schema:option]]
[:class {:optional true} :string]
[:disabled {:optional true} :boolean]
[:default-selected {:optional true} :string]
[:empty-to-end {:optional true} [:maybe :boolean]]
[:on-change {:optional true} fn?]
[:variant {:optional true} [:maybe [:enum "default" "ghost"]]]])
(mf/defc select*
{::mf/schema schema:select}
[{:keys [options class disabled default-selected empty-to-end on-change variant] :rest props}]
(let [;; NOTE: we use mfu/bean here for transparently handle
;; options provide as clojure data structures or javascript
;; plain objects and lists.
options (if (array? options)
(mfu/bean options)
options)
variant (d/nilv variant "default")
empty-to-end (d/nilv empty-to-end false)
is-open* (mf/use-state false)
is-open (deref is-open*)
selected-id* (mf/use-state #(get-selected-option-id options default-selected))
selected-id (deref selected-id*)
focused-id* (mf/use-state nil)
focused-id (deref focused-id*)
listbox-id (mf/use-id)
nodes-ref (mf/use-ref nil)
options-ref (mf/use-ref nil)
select-ref (mf/use-ref nil)
empty-selected-id?
(str/blank? selected-id)
set-option-ref
(mf/use-fn
(fn [node]
(let [state (mf/ref-val nodes-ref)
state (d/nilv state #js {})
id (dom/get-data node "id")
state (obj/set! state id node)]
(mf/set-ref-val! nodes-ref state)
(fn []
(let [state (mf/ref-val nodes-ref)
state (d/nilv state #js {})
id (dom/get-data node "id")
state (obj/unset! state id)]
(mf/set-ref-val! nodes-ref state))))))
on-option-click
(mf/use-fn
(mf/deps on-change)
(fn [event]
(dom/stop-propagation event)
(let [node (dom/get-current-target event)
id (dom/get-data node "id")]
(reset! selected-id* id)
(reset! focused-id* nil)
(reset! is-open* false)
(when (fn? on-change)
(on-change id)))))
on-click
(mf/use-fn
(mf/deps disabled)
(fn [event]
(dom/prevent-default event)
(dom/stop-propagation event)
(when-not disabled
(swap! is-open* not))))
on-blur
(mf/use-fn
(fn [event]
(let [target (dom/get-related-target event)
select-node (mf/ref-val select-ref)]
(when-not (dom/is-child? select-node target)
(reset! focused-id* nil)
(reset! is-open* false)))))
on-button-key-down
(mf/use-fn
(mf/deps focused-id disabled)
(fn [event]
(dom/stop-propagation event)
(when-not disabled
(let [options (mf/ref-val options-ref)
len (count options)
index (d/index-of-pred options #(= focused-id (get % :id)))
nodes (mf/ref-val nodes-ref)]
(cond
(kbd/home? event)
(handle-focus-change options focused-id* 0 nodes)
(kbd/up-arrow? event)
(handle-focus-change options focused-id* (mod (- index 1) len) nodes)
(kbd/down-arrow? event)
(handle-focus-change options focused-id* (mod (+ index 1) len) nodes)
(or (kbd/space? event)
(kbd/enter? event))
(when (deref is-open*)
(dom/prevent-default event)
(handle-selection focused-id* selected-id* is-open*)
(when (and (fn? on-change)
(some? focused-id))
(on-change focused-id)))
(kbd/esc? event)
(do (reset! is-open* false)
(reset! focused-id* nil)))))))
props
(mf/spread-props props {:class [class (stl/css :select) (stl/css-case :variant-ghost (= variant "ghost"))]
:role "combobox"
:aria-controls listbox-id
:aria-haspopup "listbox"
:aria-activedescendant focused-id
:aria-expanded is-open
:on-key-down on-button-key-down
:disabled disabled
:on-click on-click})
selected-option
(mf/with-memo [options selected-id]
(get-option options selected-id))
label
(get selected-option :label)
icon
(get selected-option :icon)
has-icon?
(some? icon)
dimmed?
(:dimmed selected-option)]
(mf/with-effect [options]
(mf/set-ref-val! options-ref options))
[:div {:class (stl/css :select-wrapper)
:on-click on-click
:ref select-ref
:on-blur on-blur}
[:> :button props
[:span {:class (stl/css-case :select-header true
:header-icon has-icon?)}
(when ^boolean has-icon?
[:> icon* {:icon-id icon
:size "s"
:aria-hidden true}])
[:span {:class (stl/css-case :header-label true
:header-label-dimmed (or empty-selected-id? dimmed?))}
(if ^boolean empty-selected-id? "--" label)]]
[:> icon* {:icon-id i/arrow-down
:class (stl/css :arrow)
:size "s"
:aria-hidden true}]]
(when ^boolean is-open
[:> options-dropdown* {:on-click on-option-click
:id listbox-id
:options options
:selected selected-id
:focused focused-id
:empty-to-end empty-to-end
:ref set-option-ref}])]))