[Feature] Client Callbacks

Creates support for utilization of Client Callbacks.

client/events.lua

@@ -126,11 +126,11 @@ RegisterNetEvent('QBCore:Command:SpawnVehicle', function(vehName)
     while not HasModelLoaded(hash) do
         Wait(0)
     end
-        
-     if IsPedInAnyVehicle(ped) then 
+
+     if IsPedInAnyVehicle(ped) then
         DeleteVehicle(veh)
     end
-        
+
     local vehicle = CreateVehicle(hash, GetEntityCoords(ped), GetEntityHeading(ped), true, false)
     TaskWarpPedIntoVehicle(ped, vehicle, -1)
     SetVehicleFuelLevel(vehicle, 100.0)
@@ -170,6 +170,20 @@ RegisterNetEvent('QBCore:Notify', function(text, type, length)
     QBCore.Functions.Notify(text, type, length)
 end)
 
+RegisterNetEvent('QBCore:Client:UseItem', function(item)
+    TriggerServerEvent('QBCore:Server:UseItem', item)
+end)
+
+-- Callback Events --
+
+-- Client Callback
+RegisterNetEvent('QBCore:Client:TriggerClientCallback', function(name, ...)
+    QBCore.Functions.TriggerClientCallback(name, function(...)
+        TriggerServerEvent('QBCore:Server:TriggerClientCallback', name, ...)
+    end, ...)
+end)
+
+-- Server Callback
 RegisterNetEvent('QBCore:Client:TriggerCallback', function(name, ...)
     if QBCore.ServerCallbacks[name] then
         QBCore.ServerCallbacks[name](...)
@@ -177,10 +191,6 @@ RegisterNetEvent('QBCore:Client:TriggerCallback', function(name, ...)
     end
 end)
 
-RegisterNetEvent('QBCore:Client:UseItem', function(item)
-    TriggerServerEvent('QBCore:Server:UseItem', item)
-end)
-
 -- Me command
 
 local function Draw3DText(coords, str)

client/functions.lua

@@ -117,11 +117,26 @@ function QBCore.Debug(resource, obj, depth)
     TriggerServerEvent('QBCore:DebugSomething', resource, obj, depth)
 end
 
+-- Callback Functions --
+
+-- Client Callback
+function QBCore.Functions.CreateClientCallback(name, cb)
+    QBCore.ClientCallbacks[name] = cb
+end
+
+function QBCore.Functions.TriggerClientCallback(name, cb, ...)
+    if not QBCore.ClientCallbacks[name] then return end
+    QBCore.ClientCallbacks[name](cb, ...)
+end
+
+-- Server Callback
 function QBCore.Functions.TriggerCallback(name, cb, ...)
     QBCore.ServerCallbacks[name] = cb
     TriggerServerEvent('QBCore:Server:TriggerCallback', name, ...)
 end
 
+
+
 function QBCore.Functions.Progressbar(name, label, duration, useWhileDead, canCancel, disableControls, animation, prop, propTwo, onFinish, onCancel)
     if GetResourceState('progressbar') ~= 'started' then error('progressbar needs to be started in order for QBCore.Functions.Progressbar to work') end
     exports['progressbar']:Progress({

client/main.lua

@@ -2,6 +2,7 @@ QBCore = {}
 QBCore.PlayerData = {}
 QBCore.Config = QBConfig
 QBCore.Shared = QBShared
+QBCore.ClientCallbacks = {}
 QBCore.ServerCallbacks = {}
 
 exports('GetCoreObject', function()

server/events.lua

@@ -57,13 +57,13 @@ local function onPlayerConnecting(name, setKickReason, deferrals)
     deferrals.update(string.format(Lang:t('info.join_server'), name))
 
     if not license then
-      deferrals.done(Lang:t('error.no_valid_license'))    
+      deferrals.done(Lang:t('error.no_valid_license'))
     elseif isBanned then
         deferrals.done(Reason)
     elseif isLicenseAlreadyInUse and QBCore.Config.Server.CheckDuplicateLicense then
         deferrals.done(Lang:t('error.duplicate_license'))
     elseif isWhitelist and not whitelisted then
-      deferrals.done(Lang:t('error.not_whitelisted'))    
+      deferrals.done(Lang:t('error.not_whitelisted'))
     else
         deferrals.done()
         if QBCore.Config.Server.UseConnectQueue then
@@ -103,8 +103,17 @@ RegisterNetEvent('QBCore:Server:OpenServer', function()
     end
 end)
 
--- Callbacks
+-- Callback Events --
 
+-- Client Callback
+RegisterNetEvent('QBCore:Server:TriggerClientCallback', function(name, ...)
+    if QBCore.ClientCallbacks[name] then
+        QBCore.ClientCallbacks[name](...)
+        QBCore.ClientCallbacks[name] = nil
+    end
+end)
+
+-- Server Callback
 RegisterNetEvent('QBCore:Server:TriggerCallback', function(name, ...)
     local src = source
     QBCore.Functions.TriggerCallback(name, src, function(...)

server/functions.lua

@@ -196,8 +196,15 @@ function PaycheckInterval()
     SetTimeout(QBCore.Config.Money.PayCheckTimeOut * (60 * 1000), PaycheckInterval)
 end
 
--- Callbacks
+-- Callback Functions --
 
+-- Client Callback
+function QBCore.Functions.TriggerClientCallback(name, source, cb, ...)
+    QBCore.ClientCallbacks[name] = cb
+    TriggerClientEvent('QBCore:Client:TriggerClientCallback', source, name, ...)
+end
+
+-- Server Callback
 function QBCore.Functions.CreateCallback(name, cb)
     QBCore.ServerCallbacks[name] = cb
 end

server/main.lua

@@ -1,6 +1,7 @@
 QBCore = {}
 QBCore.Config = QBConfig
 QBCore.Shared = QBShared
+QBCore.ClientCallbacks = {}
 QBCore.ServerCallbacks = {}
 QBCore.UseableItems = {}