lib/AceGUI-3.0/widgets/AceGUIWidget-Button.lua
--[[-----------------------------------------------------------------------------
Button Widget
Graphical Button.
-------------------------------------------------------------------------------]]
local Type, Version = "Button", 23
local AceGUI = LibStub and LibStub("AceGUI-3.0", true)
if not AceGUI or (AceGUI:GetWidgetVersion(Type) or 0) >= Version then return end

local AceCore = LibStub("AceCore-3.0")

-- Lua APIs
local pairs = pairs

-- WoW APIs
local _G = AceCore._G
local PlaySound, CreateFrame, UIParent = PlaySound, CreateFrame, UIParent

--[[-----------------------------------------------------------------------------
Scripts
-------------------------------------------------------------------------------]]
-- arg1 is the button for OnClick event
local function Button_OnClick()
	AceGUI:ClearFocus()
	PlaySound("igMainMenuOption")
	this.obj:Fire("OnClick", 1, arg1)
end

local function Control_OnEnter()
	this.obj:Fire("OnEnter")
end

local function Control_OnLeave()
	this.obj:Fire("OnLeave")
end

--[[-----------------------------------------------------------------------------
Methods
-------------------------------------------------------------------------------]]
local methods = {
	["OnAcquire"] = function(self)
		-- restore default values
		self:SetHeight(24)
		self:SetWidth(200)
		self:SetDisabled(false)
		self:SetAutoWidth(false)
		self:SetText()
	end,

	-- ["OnRelease"] = nil,

	["SetText"] = function(self, text)
		self.text:SetText(text)
		if self.autoWidth then
			self:SetWidth(self.text:GetStringWidth() + 30)
		end
	end,
	
	["SetAutoWidth"] = function(self, autoWidth)
		self.autoWidth = autoWidth
		if self.autoWidth then
			self:SetWidth(self.text:GetStringWidth() + 30)
		end
	end,

	["SetDisabled"] = function(self, disabled)
		self.disabled = disabled
		if disabled then
			self.frame:Disable()
		else
			self.frame:Enable()
		end
	end
}

--[[-----------------------------------------------------------------------------
Constructor
-------------------------------------------------------------------------------]]
local function Constructor()
	local name = "AceGUI30Button" .. AceGUI:GetNextWidgetNum(Type)
	local frame = CreateFrame("Button", name, UIParent, "UIPanelButtonTemplate2")
	frame:Hide()

	frame:EnableMouse(true)
	frame:SetScript("OnClick", Button_OnClick)
	frame:SetScript("OnEnter", Control_OnEnter)
	frame:SetScript("OnLeave", Control_OnLeave)

	local text = frame:GetFontString()
	text:ClearAllPoints()
	text:SetPoint("TOPLEFT", 15, -1)
	text:SetPoint("BOTTOMRIGHT", -15, 1)
	text:SetJustifyV("MIDDLE")

	local widget = {
		text  = text,
		frame = frame,
		type  = Type
	}
	for method, func in pairs(methods) do
		widget[method] = func
	end

	return AceGUI:RegisterAsWidget(widget)
end

AceGUI:RegisterWidgetType(Type, Constructor, Version)
