penpot/frontend/src/app/worker/thumbnails.cljs
2024-01-08 09:32:50 +01:00

93 lines
3.2 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.worker.thumbnails
(:require
["react-dom/server" :as rds]
[app.common.data.macros :as dm]
[app.common.logging :as log]
[app.common.uri :as u]
[app.config :as cf]
[app.main.fonts :as fonts]
[app.main.render :as render]
[app.util.http :as http]
[app.worker.impl :as impl]
[beicon.v2.core :as rx]
[okulary.core :as l]
[rumext.v2 :as mf]))
(log/set-level! :trace)
(defn- handle-response
[{:keys [body status] :as response}]
(cond
(http/success? response)
(rx/of (:body response))
(= status 413)
(rx/throw {:type :validation
:code :request-body-too-large
:hint "request body too large"})
(and (http/client-error? response)
(map? body))
(rx/throw body)
:else
(rx/throw {:type :unexpected-error
:code :unhandled-http-response
:http-status status
:http-body body})))
(defn- request-data-for-thumbnail
[file-id revn features]
(let [path "api/rpc/command/get-file-data-for-thumbnail"
params {:file-id file-id
:revn revn
:strip-frames-with-thumbnails true
:features features}
request {:method :get
:uri (u/join cf/public-uri path)
:credentials "include"
:query params}]
(->> (http/send! request)
(rx/map http/conditional-decode-transit)
(rx/mapcat handle-response))))
(defn- render-thumbnail
[{:keys [page file-id revn] :as params}]
(try
(binding [fonts/loaded-hints (l/atom #{})]
(let [objects (:objects page)
frame (some->> page :thumbnail-frame-id (get objects))
background-color (dm/get-in page [:options :background])
element (if frame
(mf/element render/frame-svg #js
{:objects objects
:frame frame
:use-thumbnails true
:background-color background-color
:aspect-ratio (/ 2 3)})
(mf/element render/page-svg #js
{:data page
:use-thumbnails true
:embed true
:aspect-ratio (/ 2 3)}))
data (rds/renderToStaticMarkup element)]
{:data data
:fonts @fonts/loaded-hints
:file-id file-id
:revn revn}))
(catch :default cause
(js/console.error "unexpected error on rendering thumbnail" cause)
nil)))
(defmethod impl/handler :thumbnails/generate-for-file
[{:keys [file-id revn features] :as message} _]
(->> (request-data-for-thumbnail file-id revn features)
(rx/map render-thumbnail)))