penpot/frontend/src/uxbox/main/ui/shapes/text.cljs
2019-08-24 12:41:11 +02:00

229 lines
7 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) 2016-2019 Andrey Antukh <niwi@niwi.nz>
(ns uxbox.main.ui.shapes.text
(:require
[cuerdas.core :as str]
[goog.events :as events]
[lentes.core :as l]
[rumext.core :as mx]
[rumext.alpha :as mf]
[uxbox.main.data.shapes :as uds]
[uxbox.main.data.workspace :as udw]
[uxbox.main.geom :as geom]
[uxbox.main.refs :as refs]
[uxbox.main.store :as st]
[uxbox.main.ui.shapes.attrs :as attrs]
[uxbox.main.ui.shapes.common :as common]
[uxbox.util.color :as color]
[uxbox.util.data :refer [classnames normalize-props]]
[uxbox.util.dom :as dom]
[uxbox.util.geom.matrix :as gmt]))
;; --- Events
(defn handle-mouse-down
[event {:keys [id group] :as shape} selected]
(if (and (not (:blocked shape))
(or @refs/selected-drawing-tool
@refs/selected-edition))
(dom/stop-propagation event)
(common/on-mouse-down event shape selected)))
;; --- Text Component
(declare text-shape-html)
(declare text-shape-wrapper)
(declare text-shape-edit)
(mf/defc text-component
[{:keys [shape] :as props}]
(let [{:keys [id x1 y1 content group]} shape
selected (mf/deref refs/selected-shapes)
edition (mf/deref refs/selected-edition)
edition? (= edition id)
selected? (and (contains? selected id)
(= (count selected) 1))]
(letfn [(on-mouse-down [event]
(handle-mouse-down event shape selected))
(on-double-click [event]
(dom/stop-propagation event)
(st/emit! (udw/start-edition-mode id)))]
[:g.shape {:class (when selected? "selected")
:on-double-click on-double-click
:on-mouse-down on-mouse-down}
(if edition?
[:& text-shape-edit {:shape shape}]
[:& text-shape-wrapper {:shape shape}])])))
;; --- Text Styles Helpers
(defn- make-style
[{:keys [fill-color
fill-opacity
font-family
font-weight
font-style
font-size
text-align
line-height
letter-spacing
user-select]
:or {fill-color "#000000"
fill-opacity 1
font-family "sourcesanspro"
font-weight "normal"
font-style "normal"
font-size 18
line-height 1.4
letter-spacing 1
text-align "left"
user-select false}
:as shape}]
(let [color (-> fill-color
(color/hex->rgba fill-opacity)
(color/rgb->str))]
(merge
{:fontSize (str font-size "px")
:color color
:whiteSpace "pre-wrap"
:textAlign text-align
:fontFamily font-family
:fontWeight font-weight
:fontStyle font-style}
(when user-select {:userSelect "auto"})
(when line-height {:lineHeight line-height})
(when letter-spacing {:letterSpacing letter-spacing}))))
;; --- Text Shape Edit
(mf/def text-shape-edit
:mixins [mf/memo]
:init
(fn [own props]
(assoc own ::container (mf/create-ref)))
:did-mount
(fn [own]
(let [shape (get-in own [::mf/props :shape])
dom (mf/ref-node (::container own))]
(set! (.-textContent dom) (:content shape ""))
(.focus dom)
own))
:render
(fn [own {:keys [shape] :as props}]
(let [{:keys [id x1 y1 content width height]} (geom/size shape)
style (make-style shape)
on-input (fn [ev]
(let [content (dom/event->inner-text ev)]
(st/emit! (udw/update-shape-attrs id {:content content}))))]
[:foreignObject {:x x1 :y y1 :width width :height height}
[:div {:style (normalize-props style)
:ref (::container own)
:on-input on-input
:contentEditable true}]])))
;; --- Text Shape Wrapper
(mf/def text-shape-wrapper
:mixins [mf/memo]
:init
(fn [own props]
(assoc own ::fobject (mf/create-ref)))
;; NOTE: this is a hack for the browser rendering.
;;
;; Without forcing rerender, when the shape is displaced
;; and only x and y attrs are updated in dom, the whole content
;; of the foreignObject becomes sometimes partially or
;; completelly invisible. The complete dom rerender fixes that
;; problem.
:did-mount
(fn [own]
(let [shape (get-in own [::mf/props :shape])
dom (mf/ref-node (::fobject own))
html (dom/render-to-html (text-shape-html shape))]
(set! (.-innerHTML dom) html))
own)
:render
(fn [own {:keys [shape] :as props}]
(let [{:keys [id modifiers]} shape
{:keys [displacement resize]} modifiers
xfmt (cond-> (gmt/matrix)
displacement (gmt/multiply displacement)
resize (gmt/multiply resize))
{:keys [x1 y1 width height] :as shape} (-> (geom/transform shape xfmt)
(geom/size))
moving? (boolean displacement)]
[:foreignObject {:x x1
:y y1
:class (classnames :move-cursor moving?)
:id (str id)
:ref (::fobject own)
:width width
:height height}])))
;; --- Text Shape Html
(mf/def text-shape-html
:mixins [mf/memo]
:render
(fn [own {:keys [content] :as shape}]
(let [style (make-style shape)]
[:div {:style style} content])))
;; --- Text Shape Html
(mf/def text-shape
:mixins [mf/memo]
:key-fn pr-str
:init
(fn [own props]
(assoc own ::fobject (mf/create-ref)))
;; NOTE: this is a hack for the browser rendering.
;;
;; Without forcing rerender, when the shape is displaced
;; and only x and y attrs are updated in dom, the whole content
;; of the foreignObject becomes sometimes partially or
;; completelly invisible. The complete dom rerender fixes that
;; problem.
:did-mount
(fn [own]
(let [shape (::mf/props own)
dom (mf/ref-node (::fobject own))
html (dom/render-to-html (text-shape-html shape))]
(set! (.-innerHTML dom) html))
own)
:render
(fn [own {:keys [id content modifiers] :as shape}]
(let [{:keys [displacement resize]} modifiers
xfmt (cond-> (gmt/matrix)
displacement (gmt/multiply displacement)
resize (gmt/multiply resize))
{:keys [x1 y1 width height] :as shape} (-> (geom/transform shape xfmt)
(geom/size))
moving? (boolean displacement)
style (make-style shape)]
[:foreignObject {:x x1
:y y1
:class (classnames :move-cursor moving?)
:id (str id)
:ref (::fobject own)
:width width
:height height}
[:div {:style style}
[:p content]]])))