Files
penpot/src/uxbox/data/workspace.cljs
2016-01-20 21:45:22 +02:00

356 lines
11 KiB
Clojure

(ns uxbox.data.workspace
(:require [bouncer.validators :as v]
[beicon.core :as rx]
[uxbox.shapes :as sh]
[uxbox.rstore :as rs]
[uxbox.router :as r]
[uxbox.state :as st]
[uxbox.schema :as sc]
[uxbox.time :as time]
[uxbox.xforms :as xf]
[uxbox.shapes :as shapes]))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Schemas
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(def ^:static +shape-props-schema+
{:x [v/integer]
:y [v/integer]
:width [v/integer]
:height [v/integer]})
(def ^:static +shape-schema+
{:x [v/integer]
:y [v/integer]
:width [v/integer]
:height [v/integer]
:type [v/required sc/shape-type]})
(def ^:static +shape-update-size-schema+
{:width [v/integer]
:height [v/integer]
:lock [v/boolean]})
(def ^:static +shape-update-fill-schema+
{:fill [sc/color]
:opacity [v/number]})
(def ^:static +shape-update-position-schema+
{:x [v/integer]
:y [v/integer]})
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Events (explicit)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defn initialize
"Initialize the workspace state."
[projectid pageid]
(reify
rs/UpdateEvent
(-apply-update [_ state]
(let [s {:project projectid
:toolboxes #{:layers}
:flags #{}
:drawing nil
:selected #{}
:page pageid}]
(assoc state :workspace s)))))
(defn toggle-tool
"Toggle the enabled flag of the specified tool."
[key]
(reify
rs/UpdateEvent
(-apply-update [_ state]
(let [flags (get-in state [:workspace :flags])]
(if (contains? flags key)
(assoc-in state [:workspace :flags] (disj flags key))
(assoc-in state [:workspace :flags] (conj flags key)))))))
(defn toggle-toolbox
"Toggle the visibility flag of the specified toolbox."
[toolname]
(reify
rs/UpdateEvent
(-apply-update [_ state]
(let [toolboxes (get-in state [:workspace :toolboxes])]
(assoc-in state [:workspace :toolboxes]
(if (contains? toolboxes toolname)
(disj toolboxes toolname)
(conj toolboxes toolname)))))))
(defn select-for-drawing
"Mark a shape selected for drawing in the canvas."
[shape]
(reify
rs/UpdateEvent
(-apply-update [_ state]
(if shape
(assoc-in state [:workspace :drawing] shape)
(update-in state [:workspace] dissoc :drawing)))))
(defn select-shape
"Mark a shape selected for drawing in the canvas."
[id]
(reify
rs/UpdateEvent
(-apply-update [_ state]
(let [selected (get-in state [:workspace :selected])]
(if (contains? selected id)
(update-in state [:workspace :selected] disj id)
(update-in state [:workspace :selected] conj id))))))
(defn contained-in-selrect?
[shape selrect]
(let [sx1 (:x selrect)
sx2 (+ sx1 (:width selrect))
sy1 (:y selrect)
sy2 (+ sy1 (:height selrect))
rx1 (:x shape)
rx2 (+ rx1 (:width shape))
ry1 (:y shape)
ry2 (+ ry1 (:height shape))]
(and (neg? (- (:y selrect) (:y shape)))
(neg? (- (:x selrect) (:x shape)))
(pos? (- (+ (:y selrect)
(:height selrect))
(+ (:y shape)
(:height shape))))
(pos? (- (+ (:x selrect)
(:width selrect))
(+ (:x shape)
(:width shape)))))))
(defn select-shapes
"Select shapes that matches the select rect."
[selrect]
(reify
rs/UpdateEvent
(-apply-update [_ state]
(let [pageid (get-in state [:workspace :page])
xf (comp
(filter #(= (:page %) pageid))
(remove :hidden)
(remove :blocked)
(filter #(contained-in-selrect? % selrect))
(map :id))]
(->> (into #{} xf (vals (:shapes-by-id state)))
(assoc-in state [:workspace :selected]))))))
(defn add-shape
"Create and add shape to the current selected page."
[shape props]
(sc/validate! +shape-schema+ shape)
(sc/validate! +shape-props-schema+ props)
(reify
rs/UpdateEvent
(-apply-update [_ state]
(let [sid (random-uuid)
pid (get-in state [:workspace :page])
shape (merge shape props {:id sid :page pid})]
(as-> state $
(update-in $ [:pages-by-id pid :shapes] conj sid)
(assoc-in $ [:shapes-by-id sid] shape))))))
(defn delete-shape
"Remove the shape using its id."
[id]
(letfn [(dissoc-shape [state {:keys [id] :as shape}]
(if (= (:type shape) :builtin/group)
(let [state (update-in state [:shapes-by-id] dissoc id)]
(->> (map #(get-in state [:shapes-by-id %]) (:items shape))
(reduce dissoc-shape state)))
(update-in state [:shapes-by-id] dissoc id)))]
(reify
rs/UpdateEvent
(-apply-update [_ state]
(let [shape (get-in state [:shapes-by-id id])
pageid (:page shape)
shapes (get-in state [:pages-by-id pageid :shapes])
shapes (into [] (remove #(= % id) shapes))]
(as-> state $
(assoc-in $ [:pages-by-id pageid :shapes] shapes)
(dissoc-shape $ shape)))))))
(defn move-shape
"Mark a shape selected for drawing in the canvas."
[sid [dx dy :as delta]]
(reify
rs/UpdateEvent
(-apply-update [_ state]
(let [shape (get-in state [:shapes-by-id sid])]
(update-in state [:shapes-by-id sid] shapes/-move {:dx dx :dy dy})))))
(defn update-shape-rotation
[sid rotation]
{:pre [(number? rotation)
(>= rotation 0)
(>= 360 rotation)]}
(reify
rs/UpdateEvent
(-apply-update [_ state]
(update-in state [:shapes-by-id sid]
shapes/-rotate rotation))))
;; TODO: implement locked resize
(defn update-shape-size
[sid {:keys [width height lock] :as opts}]
(sc/validate! +shape-update-size-schema+ opts)
(reify
rs/UpdateEvent
(-apply-update [_ state]
(let [shape (get-in state [:shapes-by-id sid])
size (select-keys shape [:width :height])
size (merge size
(when width {:width width})
(when height {:height height}))]
(update-in state [:shapes-by-id sid]
shapes/-resize size)))))
(defn update-shape-position
[sid {:keys [x y] :as opts}]
(sc/validate! +shape-update-position-schema+ opts)
(reify
rs/UpdateEvent
(-apply-update [_ state]
(update-in state [:shapes-by-id sid]
merge
(when x {:x x})
(when y {:y y})))))
(defn update-shape-fill
[sid {:keys [fill opacity] :as opts}]
(sc/validate! +shape-update-fill-schema+ opts)
(reify
rs/UpdateEvent
(-apply-update [_ state]
(update-in state [:shapes-by-id sid]
merge
(when fill {:fill fill})
(when opacity {:opacity opacity})))))
(defn toggle-shape-visibility
[sid]
(reify
rs/UpdateEvent
(-apply-update [_ state]
(let [shape (get-in state [:shapes-by-id sid])
hidden? (:hidden shape false)]
(if hidden?
(assoc-in state [:shapes-by-id sid] (assoc shape :hidden false))
(assoc-in state [:shapes-by-id sid] (assoc shape :hidden true)))))))
(defn toggle-shape-blocking
[sid]
(reify
rs/UpdateEvent
(-apply-update [_ state]
(let [shape (get-in state [:shapes-by-id sid])
blocked? (:blocked shape false)]
(if blocked?
(assoc-in state [:shapes-by-id sid] (assoc shape :blocked false))
(assoc-in state [:shapes-by-id sid] (assoc shape :blocked true)))))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Events (for selected)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defn deselect-all
"Mark a shape selected for drawing in the canvas."
[]
(reify
rs/UpdateEvent
(-apply-update [_ state]
(assoc-in state [:workspace :selected] #{}))))
(defn copy-selected
"Copy the selected shapes."
[]
(reify
rs/WatchEvent
(-apply-watch [_ state]
(let [selected (get-in state [:workspace :selected])]
(as-> selected $
(map #(get-in state [:shapes-by-id %]) $)
(map #(assoc % :id (random-uuid)) $)
(map #(add-shape % %) $)
(rx/from-coll $))))))
(defn group-selected
[]
(reify rs/UpdateEvent
(-apply-update [_ state]
(let [shapes-by-id (get state :shapes-by-id)
sid (random-uuid)
pid (get-in state [:workspace :page])
selected (get-in state [:workspace :selected])
shapes (->> selected
(map #(get shapes-by-id %))
(map #(assoc % :group sid)))
{:keys [width height x y]} (sh/group-size-and-position shapes)
group {:type :builtin/group
:id sid
:name (str "Group " (rand-int 1000))
:x x
:y y
:width width
:height height
:items (mapv :id shapes)
:page (get-in state [:workspace :page])
:view-box [0 0 width height]}
shapes-map (->> shapes
(map #(sh/translate-coords % x y))
(reduce #(assoc %1 (:id %2) %2) {}))
shapes-list (->> (get-in state [:pages-by-id pid :shapes])
(filter (comp not selected))
(into [sid]))]
(as-> state $
(update $ :shapes-by-id merge shapes-map)
(update $ :shapes-by-id assoc sid group)
(update $ :workspace assoc :selected #{})
(update-in $ [:pages-by-id pid] assoc :shapes shapes-list))))))
(defn delete-selected
"Deselect all and remove all selected shapes."
[]
(reify
rs/WatchEvent
(-apply-watch [_ state]
(let [selected (get-in state [:workspace :selected])]
(rx/from-coll
(into [(deselect-all)] (map #(delete-shape %) selected)))))))
(defn move-selected
"Move a minimal position unit the selected shapes."
[dir]
{:pre [(contains? #{:up :down :right :left} dir)]}
(reify
rs/WatchEvent
(-apply-watch [_ state]
(let [selected (get-in state [:workspace :selected])
delta (case dir
:up [0 -1]
:down [0 +1]
:right [+1 0]
:left [-1 0])]
(rx/from-coll
(map #(move-shape % delta) selected))))))
(defn update-selected-shapes-fill
"Update the fill related attributed on
selected shapes."
[opts]
(sc/validate! +shape-update-fill-schema+ opts)
(reify
rs/WatchEvent
(-apply-watch [_ state]
(rx/from-coll
(->> (get-in state [:workspace :selected])
(map #(update-shape-fill % opts)))))))