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refactor: allow adding new broadcast data types

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This commit is contained in:
rcmerci
2025-04-21 23:57:40 +08:00
parent 0ccb2a84e5
commit d2f78ae875
2 changed files with 27 additions and 19 deletions
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3
src/main/frontend/worker/db_worker.cljs
View File

@@ -856,7 +856,8 @@
(when (and graph (not= graph (first @*service)))
(p/let [service (shared-service/<create-service graph
(bean/->js fns)
#(on-become-master graph))]
#(on-become-master graph)
#{"sync-db-changes"})]
(assert (p/promise? (get-in service [:status :ready])))
(reset! *service [graph service])
service)))

43
src/main/frontend/worker/shared_service.cljs
View File

@@ -229,7 +229,7 @@
(vswap! *requests-in-flight dissoc id)))))))))
(defn- <on-become-slave
[slave-client-id service-name common-channel status-ready-promise]
[slave-client-id service-name common-channel broadcast-data-types status-ready-promise]
(let [client-channel (ensure-client-channel slave-client-id service-name)
*register-finish-promise? (atom nil)
<register #(do (.postMessage common-channel #js {:type "slave-register"
@@ -241,20 +241,21 @@
common-channel
(fn [event]
(let [{:keys [type data] :as event*} (bean/->clj (.-data event))]
(case type
"master-changed"
(p/do!
(log/debug "master-client change detected. Re-registering..." nil)
(<register)
(<re-requests-in-flight-on-slave! client-channel))
"slave-registered"
(<slave-registered-handler service-name slave-client-id event* *register-finish-promise?)
"sync-db-changes"
(if (contains? broadcast-data-types type)
(.postMessage js/self data)
(case type
"master-changed"
(p/do!
(log/debug "master-client change detected. Re-registering..." nil)
(<register)
(<re-requests-in-flight-on-slave! client-channel))
"slave-registered"
(<slave-registered-handler service-name slave-client-id event* *register-finish-promise?)
"slave-register"
(log/debug :ignored-event event*)))))
"slave-register"
(log/debug :ignored-event event*)
(log/error :unknown-event event*))))))
(->
(p/do!
(<register)
@@ -291,9 +292,12 @@
(p/resolve! status-ready-deferred-p)))
(defn <create-service
[service-name target on-become-master-handler]
"broadcast-data-types - For data matching these types,
forward the data broadcast from the master client directly to the UI thread."
[service-name target on-become-master-handler broadcast-data-types]
(clear-old-service!)
(p/let [status {:ready (p/deferred)}
(p/let [broadcast-data-types (set broadcast-data-types)
status {:ready (p/deferred)}
common-channel (ensure-common-channel service-name)
client-id (<ensure-client-id)
<check-master-slave-fn!
@@ -304,7 +308,7 @@
client-id service-name common-channel target
on-become-master-handler (:ready status))
#(<on-become-slave
client-id service-name common-channel (:ready status))))]
client-id service-name common-channel broadcast-data-types (:ready status))))]
(<check-master-slave-fn!)
(add-watch *master-re-check-trigger :check-master
@@ -340,5 +344,8 @@
(let [transit-payload (ldb/write-transit-str [type' data])]
(.postMessage js/self transit-payload)
(when-let [common-channel @*common-channel]
(.postMessage common-channel #js {:type (str type')
:data transit-payload}))))
(let [str-type' (if-let [ns (namespace type')]
(str ns "/" (name type'))
(name type'))]
(.postMessage common-channel #js {:type str-type'
:data transit-payload})))))