WoWInterface SVN HideParty

--- **AceConsole-3.0** provides registration facilities for slash commands.
-- You can register slash commands to your custom functions and use the `GetArgs` function to parse them
-- to your addons individual needs.
--
-- **AceConsole-3.0** can be embeded into your addon, either explicitly by calling AceConsole:Embed(MyAddon) or by 
-- specifying it as an embeded library in your AceAddon. All functions will be available on your addon object
-- and can be accessed directly, without having to explicitly call AceConsole itself.\\
-- It is recommended to embed AceConsole, otherwise you'll have to specify a custom `self` on all calls you
-- make into AceConsole.
-- @class file
-- @name AceConsole-3.0
-- @release $Id: AceConsole-3.0.lua 878 2009-11-02 18:51:58Z nevcairiel $
local MAJOR,MINOR = "AceConsole-3.0", 7

local AceConsole, oldminor = LibStub:NewLibrary(MAJOR, MINOR)

if not AceConsole then return end -- No upgrade needed

AceConsole.embeds = AceConsole.embeds or {} -- table containing objects AceConsole is embedded in.
AceConsole.commands = AceConsole.commands or {} -- table containing commands registered
AceConsole.weakcommands = AceConsole.weakcommands or {} -- table containing self, command => func references for weak commands that don't persist through enable/disable

-- Lua APIs
local tconcat, tostring, select = table.concat, tostring, select
local type, pairs, error = type, pairs, error
local format, strfind, strsub = string.format, string.find, string.sub
local max = math.max

-- WoW APIs
local _G = _G

-- Global vars/functions that we don't upvalue since they might get hooked, or upgraded
-- List them here for Mikk's FindGlobals script
-- GLOBALS: DEFAULT_CHAT_FRAME, SlashCmdList, hash_SlashCmdList

local tmp={}
local function Print(self,frame,...)
        local n=0
        if self ~= AceConsole then
                n=n+1
                tmp[n] = "|cff33ff99"..tostring( self ).."|r:"
        end
        for i=1, select("#", ...) do
                n=n+1
                tmp[n] = tostring(select(i, ...))
        end
        frame:AddMessage( tconcat(tmp," ",1,n) )
end

--- Print to DEFAULT_CHAT_FRAME or given ChatFrame (anything with an .AddMessage function)
-- @paramsig [chatframe ,] ...
-- @param chatframe Custom ChatFrame to print to (or any frame with an .AddMessage function)
-- @param ... List of any values to be printed
function AceConsole:Print(...)
        local frame = ...
        if type(frame) == "table" and frame.AddMessage then     -- Is first argument something with an .AddMessage member?
                return Print(self, frame, select(2,...))
        else
                return Print(self, DEFAULT_CHAT_FRAME, ...)
        end
end


--- Formatted (using format()) print to DEFAULT_CHAT_FRAME or given ChatFrame (anything with an .AddMessage function)
-- @paramsig [chatframe ,] "format"[, ...]
-- @param chatframe Custom ChatFrame to print to (or any frame with an .AddMessage function)
-- @param format Format string - same syntax as standard Lua format()
-- @param ... Arguments to the format string
function AceConsole:Printf(...)
        local frame = ...
        if type(frame) == "table" and frame.AddMessage then     -- Is first argument something with an .AddMessage member?
                return Print(self, frame, format(select(2,...)))
        else
                return Print(self, DEFAULT_CHAT_FRAME, format(...))
        end
end




--- Register a simple chat command
-- @param command Chat command to be registered WITHOUT leading "/"
-- @param func Function to call when the slash command is being used (funcref or methodname)
-- @param persist if false, the command will be soft disabled/enabled when aceconsole is used as a mixin (default: true)
function AceConsole:RegisterChatCommand( command, func, persist )
        if type(command)~="string" then error([[Usage: AceConsole:RegisterChatCommand( "command", func[, persist ]): 'command' - expected a string]], 2) end
        
        if persist==nil then persist=true end   -- I'd rather have my addon's "/addon enable" around if the author screws up. Having some extra slash regged when it shouldnt be isn't as destructive. True is a better default. /Mikk
        
        local name = "ACECONSOLE_"..command:upper()
        
        if type( func ) == "string" then
                SlashCmdList[name] = function(input, editBox)
                        self[func](self, input, editBox)
                end
        else
                SlashCmdList[name] = func
        end
        _G["SLASH_"..name.."1"] = "/"..command:lower()
        AceConsole.commands[command] = name
        -- non-persisting commands are registered for enabling disabling
        if not persist then
                if not AceConsole.weakcommands[self] then AceConsole.weakcommands[self] = {} end
                AceConsole.weakcommands[self][command] = func
        end
        return true
end

--- Unregister a chatcommand
-- @param command Chat command to be unregistered WITHOUT leading "/"
function AceConsole:UnregisterChatCommand( command )
        local name = AceConsole.commands[command]
        if name then
                SlashCmdList[name] = nil
                _G["SLASH_" .. name .. "1"] = nil
                hash_SlashCmdList["/" .. command:upper()] = nil
                AceConsole.commands[command] = nil
        end
end

--- Get an iterator over all Chat Commands registered with AceConsole
-- @return Iterator (pairs) over all commands
function AceConsole:IterateChatCommands() return pairs(AceConsole.commands) end


local function nils(n, ...)
        if n>1 then
                return nil, nils(n-1, ...)
        elseif n==1 then
                return nil, ...
        else
                return ...
        end
end
        

--- Retreive one or more space-separated arguments from a string. 
-- Treats quoted strings and itemlinks as non-spaced.
-- @param string The raw argument string
-- @param numargs How many arguments to get (default 1)
-- @param startpos Where in the string to start scanning (default  1)
-- @return Returns arg1, arg2, ..., nextposition\\
-- Missing arguments will be returned as nils. 'nextposition' is returned as 1e9 at the end of the string.
function AceConsole:GetArgs(str, numargs, startpos)
        numargs = numargs or 1
        startpos = max(startpos or 1, 1)
        
        local pos=startpos

        -- find start of new arg
        pos = strfind(str, "[^ ]", pos)
        if not pos then -- whoops, end of string
                return nils(numargs, 1e9)
        end

        if numargs<1 then
                return pos
        end

        -- quoted or space separated? find out which pattern to use
        local delim_or_pipe
        local ch = strsub(str, pos, pos)
        if ch=='"' then
                pos = pos + 1
                delim_or_pipe='([|"])'
        elseif ch=="'" then
                pos = pos + 1
                delim_or_pipe="([|'])"
        else
                delim_or_pipe="([| ])"
        end
        
        startpos = pos
        
        while true do
                -- find delimiter or hyperlink
                local ch,_
                pos,_,ch = strfind(str, delim_or_pipe, pos)
                
                if not pos then break end
                
                if ch=="|" then
                        -- some kind of escape
                        
                        if strsub(str,pos,pos+1)=="|H" then
                                -- It's a |H....|hhyper link!|h
                                pos=strfind(str, "|h", pos+2)   -- first |h
                                if not pos then break end
                                
                                pos=strfind(str, "|h", pos+2)   -- second |h
                                if not pos then break end
                        elseif strsub(str,pos, pos+1) == "|T" then
                                -- It's a |T....|t  texture
                                pos=strfind(str, "|t", pos+2)
                                if not pos then break end
                        end
                        
                        pos=pos+2 -- skip past this escape (last |h if it was a hyperlink)
                
                else
                        -- found delimiter, done with this arg
                        return strsub(str, startpos, pos-1), AceConsole:GetArgs(str, numargs-1, pos+1)
                end
                
        end
        
        -- search aborted, we hit end of string. return it all as one argument. (yes, even if it's an unterminated quote or hyperlink)
        return strsub(str, startpos), nils(numargs-1, 1e9)
end


--- embedding and embed handling

local mixins = {
        "Print",
        "Printf",
        "RegisterChatCommand", 
        "UnregisterChatCommand",
        "GetArgs",
} 

-- Embeds AceConsole into the target object making the functions from the mixins list available on target:..
-- @param target target object to embed AceBucket in
function AceConsole:Embed( target )
        for k, v in pairs( mixins ) do
                target[v] = self[v]
        end
        self.embeds[target] = true
        return target
end

function AceConsole:OnEmbedEnable( target )
        if AceConsole.weakcommands[target] then
                for command, func in pairs( AceConsole.weakcommands[target] ) do
                        target:RegisterChatCommand( command, func, false, true ) -- nonpersisting and silent registry
                end
        end
end

function AceConsole:OnEmbedDisable( target )
        if AceConsole.weakcommands[target] then
                for command, func in pairs( AceConsole.weakcommands[target] ) do
                        target:UnregisterChatCommand( command ) -- TODO: this could potentially unregister a command from another application in case of command conflicts. Do we care?
                end
        end
end

for addon in pairs(AceConsole.embeds) do
        AceConsole:Embed(addon)
end