penpot/frontend/src/app/main/ui/components/dropdown_menu.cljs
2024-02-29 09:36:47 +01:00

110 lines
4 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.components.dropdown-menu
(:require
[app.common.data :as d]
[app.config :as cfg]
[app.util.dom :as dom]
[app.util.globals :as globals]
[app.util.keyboard :as kbd]
[app.util.object :as obj]
[goog.events :as events]
[goog.object :as gobj]
[rumext.v2 :as mf])
(:import goog.events.EventType))
(mf/defc dropdown-menu-item*
{::mf/wrap-props false}
[props]
(let [props (-> (obj/clone props)
(obj/set! "role" "menuitem"))]
[:> :li props]))
(mf/defc dropdown-menu'
{::mf/wrap-props false}
[props]
(let [children (gobj/get props "children")
on-close (gobj/get props "on-close")
ref (gobj/get props "container")
ids (gobj/get props "ids")
list-class (gobj/get props "list-class")
ids (filter some? ids)
on-click
(fn [event]
(let [target (dom/get-target event)
;; MacOS ctrl+click sends two events: context-menu and click.
;; In order to not have two handlings we ignore ctrl+click for this platform
mac-ctrl-click? (and (cfg/check-platform? :macos) (kbd/ctrl? event))]
(when (and (not mac-ctrl-click?)
(not (.-data-no-close ^js target)))
(if ref
(let [parent (mf/ref-val ref)]
(when-not (or (not parent) (.contains parent target))
(on-close)))
(on-close)))))
on-keyup
(fn [event]
(when (kbd/esc? event)
(on-close)))
on-key-down
(fn [event]
(let [first-id (dom/get-element (first ids))
first-element (dom/get-element first-id)
len (count ids)]
(when (kbd/home? event)
(when first-element
(dom/focus! first-element)))
(when (kbd/up-arrow? event)
(let [actual-selected (dom/get-active)
actual-id (dom/get-attribute actual-selected "id")
actual-index (d/index-of ids actual-id)
previous-id (if (= 0 actual-index)
(last ids)
(get ids (- actual-index 1) (last ids)))]
(dom/focus! (dom/get-element previous-id))))
(when (kbd/down-arrow? event)
(let [actual-selected (dom/get-active)
actual-id (dom/get-attribute actual-selected "id")
actual-index (d/index-of ids actual-id)
next-id (if (= (- len 1) actual-index)
(first ids)
(get ids (+ 1 actual-index) (first ids)))
node-item (dom/get-element next-id)]
(dom/focus! node-item)))
(when (kbd/tab? event)
(on-close))))]
(mf/with-effect []
(let [keys [(events/listen globals/document EventType.CLICK on-click)
(events/listen globals/document EventType.CONTEXTMENU on-click)
(events/listen globals/document EventType.KEYUP on-keyup)
(events/listen globals/document EventType.KEYDOWN on-key-down)]]
#(doseq [key keys]
(events/unlistenByKey key))))
[:ul {:class list-class :role "menu"} children]))
(mf/defc dropdown-menu
{::mf/wrap-props false}
[props]
(assert (fn? (gobj/get props "on-close")) "missing `on-close` prop")
(assert (boolean? (gobj/get props "show")) "missing `show` prop")
(let [ids (obj/get props "ids")
ids (d/nilv ids (->> (obj/get props "children")
(keep #(obj/get-in % ["props" "id"]))))]
(when (gobj/get props "show")
(mf/element
dropdown-menu'
(mf/spread-props props {:ids ids})))))