pick up cefcodecfix on linux

lua/autorun/easychat_init.lua

@@ -9,6 +9,7 @@ AddCSLuaFile("easychat/autoloader.lua")
 AddCSLuaFile("easychat/engine_chat_hack.lua")
 
 AddCSLuaFile("easychat/client/font_extensions.lua")
+AddCSLuaFile("easychat/client/cef_detection.lua")
 AddCSLuaFile("easychat/client/blur_panel.lua")
 AddCSLuaFile("easychat/client/translator.lua")
 AddCSLuaFile("easychat/client/expressions.lua")

lua/easychat/client/cef_detection.lua

@@ -0,0 +1,72 @@
+--[[
+	GModCEFCodecFix detection code example
+
+	Copyright 2024, Solstice Game Studios (www.solsticegamestudios.com)
+	LICENSE: GNU General Public License v3.0
+
+	Purpose: Detects if CEFCodecFix has been applied successfully on a GMod client.
+
+	Contact:
+		Discord: https://www.solsticegamestudios.com/discord/
+		Email: contact@solsticegamestudios.com
+]]
+
+-- CEF is only on the Client
+if not CLIENT then return end
+
+-- Use these global variables for detection elsewhere in your Lua code
+CEFCodecFixChecked = false
+CEFCodecFixAvailable = false
+
+-- We hook PreRender for reliability
+hook.Add("PreRender", "CEFCodecFixCheck", function()
+	hook.Remove("PreRender", "CEFCodecFixCheck")
+
+	print("Querying CEF Codec Support...")
+
+	-- If the client isn't on the x86-64 beta, it's impossible for them to have CEFCodecFix
+	if BRANCH ~= "x86-64" then
+		CEFCodecFixAvailable = false
+		CEFCodecFixChecked = true
+		print("CEF does not have CEFCodecFix")
+		return
+	end
+
+	local cefTestPanel = vgui.Create("DHTML", nil, "CEFCodecFixCheck")
+	cefTestPanel:SetSize(32, 32)
+	cefTestPanel:SetKeyboardInputEnabled(false)
+	cefTestPanel:SetMouseInputEnabled(false)
+	function cefTestPanel:Paint()
+		return true -- We don't want this to draw normally
+	end
+	function cefTestPanel:RemoveWhileHidden()
+		-- HACK: The panel apparently draws for a frame once Remove() is called, so we're disabling visibility beforehand
+		-- NOTE: Don't use SetVisible(false) to replace the Paint override! Panel Think/Javascript won't run without panel "visibility"
+		self:SetVisible(false)
+		self:Remove()
+	end
+
+	cefTestPanel:SetHTML("")
+
+	function cefTestPanel:OnDocumentReady()
+		if not CEFCodecFixChecked then
+			self:AddFunction("gmod", "getCodecStatus", function(codecStatus)
+				CEFCodecFixAvailable = codecStatus
+				CEFCodecFixChecked = true
+
+				if CEFCodecFixAvailable then
+					print("CEF has CEFCodecFix")
+				else
+					print("CEF does not have CEFCodecFix")
+				end
+
+				self:RemoveWhileHidden()
+			end)
+
+			-- This is what actually does the detection, by seeing if the web framework is capable of playing H.264 (a proprietary video codec)
+			self:QueueJavascript([[gmod.getCodecStatus(document.createElement("video").canPlayType('video/mp4; codecs="avc1.42E01E, mp4a.40.2"') == "probably")]])
+		elseif IsValid(self) then
+			self:RemoveWhileHidden()
+		end
+	end
+end)

lua/easychat/easychat.lua

@@ -635,11 +635,13 @@ if CLIENT then
 		chat.AddText(COLOR_RED, "[WARN] " .. msg)
 	end
 
-	-- TODO: Figure out how to check keyboard IME
 	function EasyChat.CanUseCEFFeatures()
 		if EC_FORCE_ALLOW_CEF:GetBool() then return true end
-		if not system.IsWindows() and not system.IsOSX() then return false end -- cef is awfully broken on linux / mac
+
+		if CEFCodecFixChecked and CEFCodecFixAvailable then return true end -- if someone has the cefcodexfix we're fine
+		if not system.IsWindows() and not system.IsOSX() then return false end -- cef is awfully broken on linux
 		if BRANCH == "x86-64" or BRANCH == "chromium" then return true end -- chromium also exists in x86 and on the chromium branch
+
 		return jit.arch == "x64" -- when x64 and chromium are finally pushed to stable
 	end
 

lua/easychat/unicode_transliterator.lua

@@ -41,7 +41,7 @@ else
 					timer.Simple(retries * 5, function()
 						fetch_lookup(retries + 1)
 					end)
-					
+
 					return
 				end
 
@@ -59,7 +59,7 @@ else
 				end)
 			end,
 		}
-		
+
 		local success, err = pcall(HTTP, http_params)
 		if not success or (success and err ~= true) then
 			fail("Could not fetch transliteration lookup: " .. (err or "unsuccessfull"))