penpot/frontend/src/app/main/ui/workspace/shapes.cljs
2020-10-06 12:07:43 +02:00

128 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.workspace.shapes
"A workspace specific shapes wrappers."
(:require
[rumext.alpha :as mf]
[okulary.core :as l]
[beicon.core :as rx]
[app.main.streams :as ms]
[app.main.ui.hooks :as hooks]
[app.main.ui.cursors :as cur]
[app.main.ui.shapes.rect :as rect]
[app.main.ui.shapes.circle :as circle]
[app.main.ui.shapes.icon :as icon]
[app.main.ui.shapes.image :as image]
[app.main.data.workspace.selection :as dws]
[app.main.store :as st]
[app.main.refs :as refs]
;; Shapes that has some peculiarities are defined in its own
;; namespace under app.ui.workspace.shapes.* prefix, all the
;; others are defined using a generic wrapper implemented in
;; common.
[app.main.ui.workspace.shapes.bounding-box :refer [bounding-box]]
[app.main.ui.workspace.shapes.common :as common]
[app.main.ui.workspace.shapes.frame :as frame]
[app.main.ui.workspace.shapes.group :as group]
[app.main.ui.workspace.shapes.path :as path]
[app.main.ui.workspace.shapes.text :as text]
[app.common.geom.shapes :as geom]))
(declare group-wrapper)
(declare frame-wrapper)
(def circle-wrapper (common/generic-wrapper-factory circle/circle-shape))
(def icon-wrapper (common/generic-wrapper-factory icon/icon-shape))
(def image-wrapper (common/generic-wrapper-factory image/image-shape))
(def rect-wrapper (common/generic-wrapper-factory rect/rect-shape))
(defn- shape-wrapper-memo-equals?
[np op]
(let [n-shape (unchecked-get np "shape")
o-shape (unchecked-get op "shape")
n-frame (unchecked-get np "frame")
o-frame (unchecked-get op "frame")]
;; (prn "shape-wrapper-memo-equals?" (identical? n-frame o-frame))
(if (= (:type n-shape) :group)
false
(and (identical? n-shape o-shape)
(identical? n-frame o-frame)))))
(defn use-mouse-enter
[{:keys [id] :as shape}]
(mf/use-callback
(mf/deps id)
(fn []
(st/emit! (dws/change-hover-state id true)))))
(defn use-mouse-leave
[{:keys [id] :as shape}]
(mf/use-callback
(mf/deps id)
(fn []
(st/emit! (dws/change-hover-state id false)))))
(defn make-is-moving-ref
[id]
(let [check-moving (fn [local]
(and (= :move (:transform local))
(contains? (:selected local) id)))]
(l/derived check-moving refs/workspace-local)))
(mf/defc shape-wrapper
{::mf/wrap [#(mf/memo' % shape-wrapper-memo-equals?)]
::mf/wrap-props false}
[props]
(let [shape (unchecked-get props "shape")
frame (unchecked-get props "frame")
ghost? (unchecked-get props "ghost?")
shape (geom/transform-shape frame shape)
opts #js {:shape shape
:frame frame}
alt? (mf/use-state false)
on-mouse-enter (use-mouse-enter shape)
on-mouse-leave (use-mouse-leave shape)
moving-iref (mf/use-memo (mf/deps (:id shape))
#(make-is-moving-ref (:id shape)))
moving? (mf/deref moving-iref)]
(hooks/use-stream ms/keyboard-alt #(reset! alt? %))
(mf/use-effect
(fn []
(fn []
(on-mouse-leave))))
(when (and shape
(or ghost? (not moving?))
(not (:hidden shape)))
[:g.shape-wrapper {:on-mouse-enter on-mouse-enter
:on-mouse-leave on-mouse-leave
:style {:cursor (if @alt? cur/duplicate nil)}}
(case (:type shape)
:curve [:> path/path-wrapper opts]
:path [:> path/path-wrapper opts]
:text [:> text/text-wrapper opts]
:group [:> group-wrapper opts]
:icon [:> icon-wrapper opts]
:rect [:> rect-wrapper opts]
:image [:> image-wrapper opts]
:circle [:> circle-wrapper opts]
;; Only used when drawing a new frame.
:frame [:> frame-wrapper {:shape shape}]
nil)
[:& bounding-box {:shape shape :frame frame}]])))
(def group-wrapper (group/group-wrapper-factory shape-wrapper))
(def frame-wrapper (frame/frame-wrapper-factory shape-wrapper))