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♻️ Change how thumbnails are rendered
This commit is contained in:
Aitor
Andrey Antukh
parent
51a8e8799b
commit
0496b1f4e3
2 changed files with 25 additions and 48 deletions
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@ -34,7 +34,7 @@
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(defn get-thumbnail
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[object-id]
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;; Look for the thumbnail canvas to send the data to the backend
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(let [node (dom/query (dm/fmt "image.thumbnail-canvas[data-object-id='%'][data-ready='true']" object-id))
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(let [node (dom/query (dm/fmt "image.thumbnail-bitmap[data-object-id='%']" object-id))
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stopper (->> st/stream
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(rx/filter (ptk/type? :app.main.data.workspace/finalize-page))
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(rx/take 1))]
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@ -12,6 +12,7 @@
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[app.common.geom.shapes :as gsh]
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[app.config :as cf]
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[app.main.data.workspace.thumbnails :as dwt]
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[app.main.rasterizer :as thr]
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[app.main.refs :as refs]
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[app.main.store :as st]
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[app.main.ui.hooks :as hooks]
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@ -56,19 +57,17 @@
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fixed-width
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fixed-height
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(if (some? style-node) (dom/node->xml style-node) "")
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(dom/node->xml node))
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(dom/node->xml node))]
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;; create SVG blob
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blob (wapi/create-blob svg-data "image/svg+xml;charset=utf-8")
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url (dm/str (wapi/create-uri blob) "#svg")]
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;; returns the url and the node
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url))
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(->> (rx/of {:data svg-data :width fixed-width :styles ""})
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(rx/mapcat thr/render)
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(rx/map wapi/create-uri))))
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(defn use-render-thumbnail
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"Hook that will create the thumbnail data"
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[page-id {:keys [id] :as shape} root-ref node-ref rendered-ref disable? force-render]
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(let [frame-image-ref (mf/use-ref nil)
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(let [;; frame-image-ref (mf/use-ref nil)
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disable-ref (mf/use-ref disable?)
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regenerate-ref (mf/use-ref false)
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@ -87,8 +86,9 @@
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width (dm/get-prop bounds :width)
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height (dm/get-prop bounds :height)
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svg-uri* (mf/use-state nil)
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svg-uri (deref svg-uri*)
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;; TODO: Si usamos rasterizer ya no necesitamos esto.
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;; svg-uri* (mf/use-state nil)
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;; svg-uri (deref svg-uri*)
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bitmap-uri* (mf/use-state nil)
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bitmap-uri (deref bitmap-uri*)
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@ -108,16 +108,10 @@
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debug? (debug? :thumbnails)
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;; FIXME: Esto habría que sacarlo de aquí y llamarlo inmediatamente cuando se crea el frame
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;; además ya no tiene sentido utilizar el elemento del DOM porque no lo vamos a usar
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;; para nada.
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on-bitmap-load
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(mf/use-fn
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(mf/deps svg-uri)
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(fn []
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;; We revoke the SVG Blob URI to free memory only when we
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;; are sure that it is not used anymore.
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(some-> svg-uri wapi/revoke-uri)
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(reset! svg-uri* nil)))
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on-svg-load
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(mf/use-fn
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(mf/deps thumbnail-uri)
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(fn []
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@ -134,18 +128,18 @@
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(fn generate-thumbnail []
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(try
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;; When starting generating the canvas we mark it as not ready so its not send to back until
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;; we have time to update it
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;; we have time to update it.
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(when-let [node (mf/ref-val node-ref)]
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(if (dom/has-children? node)
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;; The frame-content need to have children in order to generate the thumbnail
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;; The frame-content need to have children in order to generate the thumbnail.
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(let [style-node (dom/query (dm/str "#frame-container-" id " style"))
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bounds (mf/ref-val bounds-ref)
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url (create-svg-blob-uri-from bounds node style-node)]
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stream (create-svg-blob-uri-from bounds node style-node)]
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(reset! svg-uri* url))
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(->> stream
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(rx/subs (fn [uri] (reset! bitmap-uri* uri)))))
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;; Node not yet ready, we schedule a new generation
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;; Node not yet ready, we schedule a new generation.
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(ts/raf generate-thumbnail)))
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(catch :default e
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(.error js/console e)))))
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@ -162,7 +156,7 @@
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loading-fonts? (some? (dom/query (dm/str "#frame-container-" id " > style[data-loading='true']")))]
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(when (and (not loading-images?)
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(not loading-fonts?))
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(reset! svg-uri* nil)
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;; (reset! svg-uri* nil)
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(reset! bitmap-uri* nil)
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(generate-thumbnail)
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(mf/set-ref-val! regenerate-ref false))))))
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@ -174,7 +168,7 @@
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(mf/use-fn
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(fn []
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(when-not ^boolean (mf/ref-val disable-ref)
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(reset! svg-uri* nil)
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;; (reset! svg-uri* nil)
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(reset! bitmap-uri* nil)
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(reset! render-frame* true)
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(mf/set-ref-val! regenerate-ref true))))
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@ -257,32 +251,15 @@
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:stroke "blue"
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:stroke-width 2}])
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;; This is similar to how double-buffering works.
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;; In svg-uri* we keep the SVG image that is used to
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;; render the bitmap until the bitmap is ready
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;; to be rendered on screen. Then we remove the
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;; svg and keep the bitmap one.
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;; This is the "buffer" that keeps the bitmap image.
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;; The frame content is the only thing that we want to render
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(when (some? bitmap-uri)
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[:image.thumbnail-bitmap
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{:x x
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:y y
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:width width
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:height height
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:href bitmap-uri
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:style {:filter (when ^boolean debug? "sepia(1)")}
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:on-load on-bitmap-load}])
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;; This is the "buffer" that keeps the SVG image.
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(when (some? svg-uri)
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[:image.thumbnail-canvas
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{:x x
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:y y
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:key (dm/str "thumbnail-canvas-" id)
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:data-object-id (dm/str page-id id)
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:width width
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:height height
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:ref frame-image-ref
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:href svg-uri
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:style {:filter (when ^boolean debug? "sepia(0.5)")}
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:on-load on-svg-load}])])]))
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:href bitmap-uri
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:style {:filter (when ^boolean debug? "sepia(1)")}
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:on-load on-bitmap-load}])])]))
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