penpot/frontend/src/app/main/data/workspace/guides.cljs
2023-12-26 14:14:20 +01:00

113 lines
3.5 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.data.workspace.guides
(:require
[app.common.data.macros :as dm]
[app.common.files.changes-builder :as pcb]
[app.common.geom.point :as gpt]
[app.common.geom.shapes :as gsh]
[app.common.types.page :as ctp]
[app.main.data.workspace.changes :as dwc]
[app.main.data.workspace.state-helpers :as wsh]
[beicon.v2.core :as rx]
[potok.v2.core :as ptk]))
(defn make-update-guide [guide]
(fn [other]
(cond-> other
(= (:id other) (:id guide))
(merge guide))))
(defn update-guides [guide]
(dm/assert!
"expected valid guide"
(ctp/check-page-guide! guide))
(ptk/reify ::update-guides
ptk/WatchEvent
(watch [it state _]
(let [page (wsh/lookup-page state)
changes
(-> (pcb/empty-changes it)
(pcb/with-page page)
(pcb/update-page-option :guides assoc (:id guide) guide))]
(rx/of (dwc/commit-changes changes))))))
(defn remove-guide [guide]
(dm/assert!
"expected valid guide"
(ctp/check-page-guide! guide))
(ptk/reify ::remove-guide
ptk/UpdateEvent
(update [_ state]
(let [sdisj (fnil disj #{})]
(-> state
(update-in [:workspace-guides :hover] sdisj (:id guide)))))
ptk/WatchEvent
(watch [it state _]
(let [page (wsh/lookup-page state)
changes
(-> (pcb/empty-changes it)
(pcb/with-page page)
(pcb/update-page-option :guides dissoc (:id guide)))]
(rx/of (dwc/commit-changes changes))))))
(defn remove-guides
[ids]
(ptk/reify ::remove-guides
ptk/WatchEvent
(watch [_ state _]
(let [page (wsh/lookup-page state)
guides (get-in page [:options :guides] {})
guides (-> (select-keys guides ids) (vals))]
(rx/from (->> guides (mapv #(remove-guide %))))))))
(defmethod ptk/resolve ::move-frame-guides
[_ ids]
(dm/assert!
"expected a coll of uuids"
(every? uuid? ids))
(ptk/reify ::move-frame-guides
ptk/WatchEvent
(watch [_ state _]
(let [objects (wsh/lookup-page-objects state)
is-frame? (fn [id] (= :frame (get-in objects [id :type])))
frame-ids? (into #{} (filter is-frame?) ids)
object-modifiers (get state :workspace-modifiers)
build-move-event
(fn [guide]
(let [frame (get objects (:frame-id guide))
frame' (gsh/transform-shape frame (get-in object-modifiers [(:frame-id guide) :modifiers]))
moved (gpt/to-vec (gpt/point (:x frame) (:y frame))
(gpt/point (:x frame') (:y frame')))
guide (update guide :position + (get moved (:axis guide)))]
(update-guides guide)))
guides (-> state wsh/lookup-page-options :guides vals)]
(->> guides
(filter (comp frame-ids? :frame-id))
(map build-move-event)
(rx/from))))))
(defn set-hover-guide
[id hover?]
(ptk/reify ::set-hover-guide
ptk/UpdateEvent
(update [_ state]
(let [sconj (fnil conj #{})
sdisj (fnil disj #{})]
(if hover?
(update-in state [:workspace-guides :hover] sconj id)
(update-in state [:workspace-guides :hover] sdisj id))))))