penpot/frontend/src/app/main/ui/components/context_menu.cljs
2021-03-04 16:52:53 +01:00

117 lines
4.4 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/.
;;
;; This Source Code Form is "Incompatible With Secondary Licenses", as
;; defined by the Mozilla Public License, v. 2.0.
;;
;; Copyright (c) 2020 UXBOX Labs SL
(ns app.main.ui.components.context-menu
(:require
[rumext.alpha :as mf]
[goog.object :as gobj]
[app.main.ui.components.dropdown :refer [dropdown']]
[app.main.ui.icons :as i]
[app.common.uuid :as uuid]
[app.util.data :refer [classnames]]
[app.util.dom :as dom]
[app.util.object :as obj]))
(mf/defc context-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")
(assert (vector? (gobj/get props "options")) "missing `options` prop")
(let [open? (gobj/get props "show")
on-close (gobj/get props "on-close")
options (gobj/get props "options")
is-selectable (gobj/get props "selectable")
selected (gobj/get props "selected")
top (gobj/get props "top" 0)
left (gobj/get props "left" 0)
fixed? (gobj/get props "fixed?" false)
local (mf/use-state {:offset 0
:levels nil})
on-local-close
(mf/use-callback
(fn []
(swap! local assoc :levels [{:parent-option nil
:options options}])
(on-close)))
check-menu-offscreen
(mf/use-callback
(mf/deps top (:offset @local))
(fn [node]
(when (and node (not fixed?))
(let [{node-height :height} (dom/get-bounding-rect node)
{window-height :height} (dom/get-window-size)
target-offset (if (> (+ top node-height) window-height)
(- node-height)
0)]
(if (not= target-offset (:offset @local))
(swap! local assoc :offset target-offset))))))
enter-submenu
(mf/use-callback
(mf/deps options)
(fn [option-name sub-options]
(fn [event]
(dom/stop-propagation event)
(swap! local update :levels
conj {:parent-option option-name
:options sub-options}))))
exit-submenu
(mf/use-callback
(fn [event]
(dom/stop-propagation event)
(swap! local update :levels pop)))
props (obj/merge props #js {:on-close on-local-close})]
(mf/use-effect
(mf/deps options)
#(swap! local assoc :levels [{:parent-option nil
:options options}]))
(when (and open? (some? (:levels @local)))
[:> dropdown' props
[:div.context-menu {:class (classnames :is-open open?
:fixed fixed?
:is-selectable is-selectable)
:style {:top (+ top (:offset @local))
:left left}}
(let [level (-> @local :levels peek)]
[:ul.context-menu-items {:ref check-menu-offscreen}
(when-let [parent-option (:parent-option level)]
[:*
[:li.context-menu-item
[:a.context-menu-action.submenu-back
{:data-no-close true
:on-click exit-submenu}
[:span i/arrow-slide]
parent-option]]
[:li.separator]])
(for [[option-name option-handler sub-options] (:options level)]
(when option-name
(if (= option-name :separator)
[:li.separator]
[:li.context-menu-item
{:class (classnames :is-selected (and selected
(= option-name selected)))
:key option-name}
(if-not sub-options
[:a.context-menu-action {:on-click option-handler}
option-name]
[:a.context-menu-action.submenu
{:data-no-close true
:on-click (enter-submenu option-name sub-options)}
option-name
[:span i/arrow-slide]])])))])]])))