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local CHAT_HISTORY = 50
local LastMessageID = 0
local JavaScript = [[
<script type="text/javascript">
function createXHR()
{
var request = false;
try {
request = new ActiveXObject('Msxml2.XMLHTTP');
}
catch (err2) {
try {
request = new ActiveXObject('Microsoft.XMLHTTP');
}
catch (err3) {
try {
request = new XMLHttpRequest();
}
catch (err1) {
request = false;
}
}
}
return request;
}
function OpenPage( url, postParams, callback )
{
var xhr = createXHR();
xhr.onreadystatechange=function()
{
if (xhr.readyState == 4)
{
callback( xhr )
}
};
xhr.open( (postParams!=null)?"POST":"GET", url , true);
if( postParams != null )
{
xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
}
xhr.send(postParams);
}
function LoadPageInto( url, postParams, storage )
{
OpenPage( url, postParams, function( xhr )
{
var ScrollBottom = storage.scrollTop + storage.offsetHeight;
var bAutoScroll = (ScrollBottom >= storage.scrollHeight); // Detect whether we scrolled to the bottom of the div
results = xhr.responseText.split("<<divider>>");
if( results[2] != LastMessageID ) return; // Check if this message was meant for us
LastMessageID = results[1];
if( results[0] != "" )
{
storage.innerHTML += results[0];
if( bAutoScroll == true )
{
storage.scrollTop = storage.scrollHeight;
}
}
} );
return false;
}
function SendChatMessage()
{
var MessageContainer = document.getElementById('ChatMessage');
if( MessageContainer.value == "" ) return;
var postParams = "ChatMessage=" + MessageContainer.value;
OpenPage( "/~webadmin/Core/Chat/", postParams, function( xhr )
{
RefreshChat();
} );
MessageContainer.value = "";
}
function RefreshChat()
{
var postParams = "JustChat=true&LastMessageID=" + LastMessageID;
LoadPageInto("/~webadmin/Core/Chat/", postParams, document.getElementById('ChatDiv'));
}
setInterval(RefreshChat, 1000);
window.onload = RefreshChat;
var LastMessageID = 0;
</script>
]]
local ChatLogMessages = {}
function AddMessage( PlayerName, Message )
LastMessageID = LastMessageID + 1
table.insert( ChatLogMessages, { name = PlayerName, message = Message, id = LastMessageID } )
while( #ChatLogMessages > CHAT_HISTORY ) do
table.remove( ChatLogMessages, 1 )
end
end
function OnChat( Player, Message )
AddMessage( Player:GetName(), Message )
end
function HandleRequest_Chat( Request )
if( Request.PostParams["JustChat"] ~= nil ) then
local LastIdx = 0
if( Request.PostParams["LastMessageID"] ~= nil ) then LastIdx = tonumber( Request.PostParams["LastMessageID"] ) end
local Content = ""
for key, value in pairs(ChatLogMessages) do
if( value.id > LastIdx ) then
Content = Content .. "[" .. value.name .. "]: " .. value.message .. "<br>"
end
end
Content = Content .. "<<divider>>" .. LastMessageID .. "<<divider>>" .. LastIdx
return Content
end
if( Request.PostParams["ChatMessage"] ~= nil ) then
local Message = "[WebAdmin]: " .. Request.PostParams["ChatMessage"]
cRoot:Get():GetServer():SendMessage( Message )
AddMessage("WebAdmin", Request.PostParams["ChatMessage"] )
return ""
end
local Content = JavaScript
Content = Content .. [[
<div style="font-family: Courier; border: 1px solid #DDD; padding: 10px; width: 97%; height: 200px; overflow: scroll;" id="ChatDiv"></div>
<input type="text" id="ChatMessage" onKeyPress="if (event.keyCode == 13) { SendChatMessage(); }"><input type="submit" value="Submit" onClick="SendChatMessage();">
]]
return Content
end
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