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🐛 Improved resilience for thumbnail generation

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This commit is contained in:
alonso.torres 2022-05-05 16:46:21 +02:00
parent baf3f7ea15
commit 9099403421
1 changed files with 14 additions and 8 deletions
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22
frontend/src/app/main/ui/workspace/shapes/frame/thumbnail_render.cljs
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@ -19,12 +19,17 @@
(defn- draw-thumbnail-canvas
[canvas-node img-node]
(let [canvas-context (.getContext canvas-node "2d")
canvas-width (.-width canvas-node)
canvas-height (.-height canvas-node)]
(.clearRect canvas-context 0 0 canvas-width canvas-height)
(.drawImage canvas-context img-node 0 0 canvas-width canvas-height)
(.toDataURL canvas-node "image/png")))
(try
(when (and (some? canvas-node) (some? img-node))
(let [canvas-context (.getContext canvas-node "2d")
canvas-width (.-width canvas-node)
canvas-height (.-height canvas-node)]
(.clearRect canvas-context 0 0 canvas-width canvas-height)
(.drawImage canvas-context img-node 0 0 canvas-width canvas-height)
(.toDataURL canvas-node "image/png")))
(catch :default err
(.error js/console err)
nil)))
(defn use-render-thumbnail
"Hook that will create the thumbnail thata"
@ -54,8 +59,9 @@
#(let [canvas-node (mf/ref-val frame-canvas-ref)
img-node (mf/ref-val frame-image-ref)
thumb-data (draw-thumbnail-canvas canvas-node img-node)]
(st/emit! (dw/update-thumbnail id thumb-data))
(reset! image-url nil)))))
(when (some? thumb-data)
(st/emit! (dw/update-thumbnail id thumb-data))
(reset! image-url nil))))))
on-update-frame
(fn []