penpot/frontend/src/app/util/clipboard.cljs

110 lines
3.3 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 Sucursal en España SL
(ns app.util.clipboard
(:require
["./clipboard.js" :as impl]
[app.common.transit :as t]
[app.util.dom :as dom]
[beicon.v2.core :as rx]))
(def image-types
["image/webp"
"image/png"
"image/jpeg"
"image/svg+xml"])
(def ^:private default-options
#js {:decodeTransit t/decode-str
:allowHTMLPaste false})
(defn- from-data-transfer
"Get clipboard stream from DataTransfer instance"
([data-transfer]
(from-data-transfer data-transfer default-options))
([data-transfer options]
(->> (rx/from (impl/fromDataTransfer data-transfer options))
(rx/mapcat #(rx/from %)))))
(defn from-navigator
([]
(from-navigator default-options))
([options]
(->> (rx/from (impl/fromNavigator options))
(rx/mapcat #(rx/from %)))))
(defn from-clipboard-event
"Get clipboard stream from clipboard event"
([event]
(from-clipboard-event event default-options))
([event options]
(let [cdata (.-clipboardData ^js event)]
(from-data-transfer cdata options))))
(defn from-synthetic-clipboard-event
"Get clipboard stream from syntetic clipboard event"
([event options]
(let [target
(dom/get-target event)
content-editable?
(dom/is-content-editable? target)
is-input?
(= (dom/get-tag-name target) "INPUT")]
;; ignore when pasting into an editable control
(if-not (or content-editable? is-input?)
(-> event
(dom/event->browser-event)
(from-clipboard-event options))
(rx/empty)))))
(defn from-drop-event
"Get clipboard stream from drop event"
([event]
(from-drop-event event default-options))
([event options]
(from-data-transfer (.-dataTransfer ^js event) options)))
;; FIXME: rename to `write-text`
(defn to-clipboard
[data]
(assert (string? data) "`data` should be string")
(let [clipboard (unchecked-get js/navigator "clipboard")]
(.writeText ^js clipboard data)))
(defn- create-clipboard-item
[mimetype promise]
(js/ClipboardItem.
(js-obj mimetype promise)))
;; FIXME: this API is very confuse
(defn to-clipboard-promise
[mimetype promise]
(let [clipboard (unchecked-get js/navigator "clipboard")
data (create-clipboard-item mimetype promise)]
(.write ^js clipboard #js [data])))
(defn to-clipboard-multi
"Write multiple MIME representations as a single ClipboardItem.
`items` is a map of mime-type (string) -> string payload.
Falls back to `writeText` when the async Clipboard API is unavailable."
[items]
(let [clipboard (unchecked-get js/navigator "clipboard")]
(if (and clipboard (unchecked-get clipboard "write"))
(let [obj (reduce-kv
(fn [acc mime payload]
(let [blob (js/Blob. #js [payload] #js {:type mime})]
(unchecked-set acc mime (js/Promise.resolve blob))
acc))
#js {} items)
item (js/ClipboardItem. obj)]
(.write ^js clipboard #js [item]))
(when-let [text (or (get items "text/plain")
(first (vals items)))]
(.writeText ^js clipboard text)))))