Pull item row generator into its own file

frames/MerchantItem.lua

@@ -0,0 +1,179 @@
+
+local myname, ns = ...
+
+
+local GAP = 4
+local HEIGHT = 21
+local ICONSIZE = 17
+
+
+local function OnClick(self, button)
+	if IsAltKeyDown() and not self.AltCurrency:IsShown() then
+		self:BuyItem(true)
+	elseif IsModifiedClick() then
+		HandleModifiedItemClick(GetMerchantItemLink(self:GetID()))
+	elseif self.AltCurrency:IsShown() then
+		local id = self:GetID()
+		local link = GetMerchantItemLink(id)
+		self.link, self.texture = GetMerchantItemLink(id), self.icon:GetTexture()
+		MerchantFrame_ConfirmExtendedItemCost(self)
+	else self:BuyItem() end
+end
+
+
+local function PopoutOnClick(self, button)
+	local id = self:GetParent():GetID()
+	local link = GetMerchantItemLink(id)
+	if not link then return end
+
+	local _, _, _, vendorStackSize, numAvailable = GetMerchantItemInfo(id)
+	local maxPurchase = GetMerchantItemMaxStack(id)
+	local _, _, _, _, _, _, _, itemStackSize = GetItemInfo(link)
+
+	local size = numAvailable > 0 and numAvailable or itemStackSize
+	OpenStackSplitFrame(250, self, "LEFT", "RIGHT")
+end
+
+
+local function Purchase(id, quantity)
+	local _, _, _, vendorStackSize, numAvailable = GetMerchantItemInfo(id)
+	local maxPurchase = GetMerchantItemMaxStack(id)
+
+	if numAvailable > 0 and numAvailable < quantity then quantity = numAvailable end
+	local purchased = 0
+	while purchased < quantity do
+		local buyamount = math.min(maxPurchase, quantity - purchased)
+		purchased = purchased + buyamount
+		BuyMerchantItem(id, buyamount)
+	end
+end
+
+
+local function BuyItem(self, fullstack)
+	local id = self:GetID()
+	local link = GetMerchantItemLink(id)
+	if not link then return end
+
+	local _, _, _, vendorStackSize = GetMerchantItemInfo(id)
+	local _, _, _, _, _, _, _, itemStackSize = GetItemInfo(link)
+	Purchase(id, fullstack and itemStackSize or vendorStackSize or 1)
+end
+
+
+local function PopoutSplitStack(self, qty)
+	Purchase(self:GetParent():GetID(), qty)
+end
+
+
+local function SetValue(self, i)
+	self:SetID(i)
+	self:Show()
+
+	local name, itemTexture, itemPrice, itemStackCount, numAvailable, isUsable, extendedCost = GetMerchantItemInfo(i)
+	local link = GetMerchantItemLink(i)
+
+	local gradient, shown = ns.GetRowGradient(i)
+	self.backdrop:SetGradientAlpha("HORIZONTAL", unpack(gradient))
+	self.backdrop:SetShown(shown)
+
+	self.icon:SetTexture(itemTexture)
+
+	local textcolor = ns.GetRowTextColor(i)
+	self.ItemName:SetText((numAvailable > -1 and ("["..numAvailable.."] ") or "").. textcolor.. (name or "<Loading item data>").. (itemStackCount > 1 and ("|r x"..itemStackCount) or ""))
+
+	self.AltCurrency:SetValue(i)
+
+	if extendedCost then
+		self.link, self.texture, self.extendedCost = link, itemTexture, true
+	end
+	if itemPrice > 0 then
+		self.ItemPrice:SetText(ns.GSC(itemPrice))
+		self.Price = itemPrice
+	end
+	if extendedCost and (itemPrice <= 0) then
+		self.ItemPrice:SetText("")
+		self.Price = 0
+	elseif extendedCost and (itemPrice > 0) then
+		self.ItemPrice:SetText(ns.GSC(itemPrice))
+	else
+		self.extendedCost = nil
+	end
+
+	self.icon:SetVertexColor(ns.GetRowVertexColor(i))
+end
+
+
+function ns.NewMerchantItemFrame(parent)
+	local frame = CreateFrame("Button", nil, parent)
+	frame:SetHeight(HEIGHT)
+
+	frame.BuyItem = BuyItem
+
+	frame:SetHighlightTexture("Interface\\HelpFrame\\HelpFrameButton-Highlight")
+	frame:GetHighlightTexture():SetTexCoord(0, 1, 0, 0.578125)
+
+	frame:RegisterForClicks("AnyUp")
+	frame:SetScript('OnClick', OnClick)
+	frame:RegisterForDrag("LeftButton")
+	frame:SetScript('OnDragStart', function(self, button)
+		MerchantFrame.extendedCost = nil
+		PickupMerchantItem(self:GetID())
+		if self.extendedCost then MerchantFrame.extendedCost = self end
+	end)
+
+	local backdrop = frame:CreateTexture(nil, "BACKGROUND")
+	backdrop:SetAllPoints()
+	backdrop:SetTexture("Interface\\Tooltips\\UI-Tooltip-Background")
+	frame.backdrop = backdrop
+
+	local icon = CreateFrame('Frame', nil, frame)
+	icon:SetHeight(ICONSIZE)
+	icon:SetWidth(ICONSIZE)
+	icon:SetPoint('LEFT', 2, 0)
+
+	frame.icon = icon:CreateTexture(nil, "BORDER")
+	frame.icon:SetAllPoints()
+
+	local popout = CreateFrame("Button", nil, frame)
+	popout:SetPoint("RIGHT")
+	popout:SetWidth(HEIGHT/2) popout:SetHeight(HEIGHT)
+	popout:SetNormalTexture("Interface\\PaperDollInfoFrame\\UI-GearManager-FlyoutButton")
+	popout:SetHighlightTexture("Interface\\PaperDollInfoFrame\\UI-GearManager-FlyoutButton")
+	popout:GetNormalTexture():SetTexCoord(0.15625, 0.5, 0.84375, 0.5, 0.15625, 0, 0.84375, 0)
+	popout:GetHighlightTexture():SetTexCoord(0.15625, 1, 0.84375, 1, 0.15625, 0.5, 0.84375, 0.5)
+	popout:SetScript("OnClick", PopoutOnClick)
+	popout.SplitStack = PopoutSplitStack
+	frame.popout = popout
+
+	local ItemPrice = frame:CreateFontString(nil, nil, "NumberFontNormal")
+	ItemPrice:SetPoint('RIGHT', popout, "LEFT", -2, 0)
+	frame.ItemPrice = ItemPrice
+
+	local AltCurrency = ns.NewAltCurrencyFrame(frame)
+	AltCurrency:SetPoint("RIGHT", ItemPrice, "LEFT")
+	frame.AltCurrency = AltCurrency
+
+	local ItemName = frame:CreateFontString(nil, nil, "GameFontNormalSmall")
+	ItemName:SetPoint("LEFT", icon, "RIGHT", GAP, 0)
+	ItemName:SetPoint("RIGHT", AltCurrency, "LEFT", -GAP, 0)
+	ItemName:SetJustifyH("LEFT")
+	frame.ItemName = ItemName
+
+	frame:SetScript('OnEnter', function(self)
+		GameTooltip:SetOwner(self, "ANCHOR_RIGHT")
+		GameTooltip:SetMerchantItem(self:GetID())
+		GameTooltip_ShowCompareItem()
+		MerchantFrame.itemHover = self:GetID()
+		if IsModifiedClick("DRESSUP") then ShowInspectCursor() else ResetCursor() end
+	end)
+
+	frame:SetScript('OnLeave', function()
+		GameTooltip:Hide()
+		ResetCursor()
+		MerchantFrame.itemHover = nil
+	end)
+
+	frame.SetValue = SetValue
+
+	return frame
+end