Bug fix for the Blizzard TradeSkill window: Allow stack splitting without disturbing the search box
There is an annoying bug in the TradeSkill window in the Blizzard default UI - if you try to split a stack of items in your bags (via shift-click) while the TradeSkill window is open, the UI instead pastes the item name into the TradeSkill search box, even when the search box does not have a blinking cursor (editbox cursor focus).
This tiny addon fixes that bug so that shift-click stack splitting will now work correctly with the TradeSkill window open. If the search box has a blinking cursor, shift-clicking an item will paste the item name, otherwise (the common case) it will perform a stack split.
Mists of Pandaria Info: Starting in WoW 5.x, shift-RIGHTclick always works for stack splitting, even when the TradeSkill window is open. Shift-LEFTclick still fills the search box (without focus), but this "unfocused text capture" is compatible with the behavior of other Blizzard frames, including the AuctionHouse search box and the Macro text frame. Therefore as of 5.x this addon is officially end-of-life.