penpot/frontend/src/uxbox/main/ui/shapes/common.cljs

92 lines
2.9 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) 2016 Andrey Antukh <niwi@niwi.nz>
(ns uxbox.main.ui.shapes.common
(:require [lentes.core :as l]
[beicon.core :as rx]
[potok.core :as ptk]
[uxbox.main.store :as st]
[uxbox.main.refs :as refs]
[uxbox.main.streams :as streams]
[uxbox.main.geom :as geom]
[uxbox.main.user-events :as uev]
[uxbox.main.data.shapes :as uds]
[uxbox.main.ui.keyboard :as kbd]
[uxbox.util.geom.point :as gpt]
[uxbox.util.rlocks :as rlocks]
[uxbox.util.dom :as dom]))
;; --- Refs
;; FIXME: use the predefined lenses under uxbox.main.lenses
(def edition-ref
(-> (l/in [:workspace :edition])
(l/derive st/state)))
(def drawing-state-ref
(-> (l/in [:workspace :drawing])
(l/derive st/state)))
(def selected-ref
(-> (l/in [:workspace :selected])
(l/derive st/state)))
;; --- Movement
(defn start-move
[]
(letfn [(on-move [shape delta]
(st/emit! (uds/apply-temporal-displacement shape delta)))
(on-stop [{:keys [id] :as shape}]
(rlocks/release! :shape/move)
(st/emit! (uds/apply-displacement shape)))
(on-start [shape]
(let [stoper (->> streams/events
(rx/filter uev/mouse-up?)
(rx/take 1))
stream (->> streams/mouse-position-deltas
(rx/take-until stoper))
on-move (partial on-move shape)
on-stop (partial on-stop shape)]
(when @refs/selected-alignment
(st/emit! (uds/initial-align-shape shape)))
(rx/subscribe stream on-move nil on-stop)))]
(rlocks/acquire! :shape/move)
(run! on-start @selected-ref)))
;; --- Events
(defn on-mouse-down
[event {:keys [id group] :as shape} selected]
(let [selected? (contains? selected id)
drawing? @drawing-state-ref]
(when-not (:blocked shape)
(cond
(or drawing?
(and group (:locked (geom/resolve-parent shape))))
nil
(and (not selected?) (empty? selected))
(do
(dom/stop-propagation event)
(st/emit! (uds/select-shape id))
(start-move))
(and (not selected?) (not (empty? selected)))
(do
(dom/stop-propagation event)
(if (kbd/shift? event)
(st/emit! (uds/select-shape id))
(do
(st/emit! (uds/deselect-all)
(uds/select-shape id))
(start-move))))
:else
(do
(dom/stop-propagation event)
(start-move))))))