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🐛 Fix problem when loading fonts

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alonso.torres 2023-03-08 14:30:25 +01:00
parent e170011e3c
commit b2c3dc1504
1 changed files with 32 additions and 36 deletions
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68
frontend/src/app/main/fonts.cljs
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@ -194,47 +194,43 @@
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defn ensure-loaded!
([id]
(p/create (fn [resolve]
(ensure-loaded! id resolve))))
([id on-loaded]
(log/debug :action "try-ensure-loaded!" :font-id id)
(if-not (exists? js/window)
;; If we are in the worker environment, we just mark it as loaded
;; without really loading it.
(do
(swap! loaded conj id)
(p/resolved id))
[id]
(log/debug :action "try-ensure-loaded!" :font-id id)
(if-not (exists? js/window)
;; If we are in the worker environment, we just mark it as loaded
;; without really loading it.
(do
(swap! loaded conj id)
(p/resolved id))
(when-let [font (get @fontsdb id)]
(cond
;; Font already loaded, we just continue
(contains? @loaded id)
(p/do
(on-loaded id)
id)
(let [font (get @fontsdb id)]
(cond
(nil? font)
(p/resolved id)
;; Font is currently downloading. We attach the caller to the promise
(contains? @loading id)
(-> (get @loading id)
(p/then #(do (on-loaded id) id)))
;; Font already loaded, we just continue
(contains? @loaded id)
(p/resolved id)
;; First caller, we create the promise and then wait
:else
(let [on-load (fn [resolve]
(swap! loaded conj id)
(swap! loading dissoc id)
(on-loaded id)
(resolve id))
;; Font is currently downloading. We attach the caller to the promise
(contains? @loading id)
(p/resolved (get @loading id))
load-p (p/create
(fn [resolve _]
(-> font
(assoc ::on-loaded (partial on-load resolve))
(load-font))))]
;; First caller, we create the promise and then wait
:else
(let [on-load (fn [resolve]
(swap! loaded conj id)
(swap! loading dissoc id)
(resolve id))
(swap! loading assoc id load-p)
load-p))))))
load-p (p/create
(fn [resolve _]
(-> font
(assoc ::on-loaded (partial on-load resolve))
(load-font))))]
(swap! loading assoc id load-p)
load-p)))))
(defn ready
[cb]