Wiley-World.of.Warcraft.Programming.A.Guide.and.Reference.for.Creating.WoW.Addons

Chapter 25 ■ Taking Protected Action in Combat 473This code starts by iterating over the player frame and the frames for allparty members and making the same changes to each one:First, it sets “spelllist“ as the type for modified left-clicks. This type isnot defined by the secure action button template, so it will look for a functionin self.menu or a snippet in self:GetAttribute(“_spelllist“). You shoulduse the latter because setting a key on the frame would introduce taint. Asyou did with the ShyBars example given before (the one that auto-hides theextra action bars), you use SecureHandlerSetFrameRef to import references tothe actual frames into the environment for the snippet to access when it runs.Figure 25-1 shows the BlessedMenus addon.Figure 25-1: BlessedMenus in actionA couple issues still exist with BlessedMenus; if you show one menu whileanother one is open (such as by Shift+clicking, then Alt+clicking), they willoverlap, instead of closing the first one. Also, the menu does not disappearwhen you choose an option from it. You learn how to address both these issuesin the following sections.Preserving State and Controlling InformationThe secure frame management system in versions 2.0–2.4 of WoW used asingle variable per header, called state, to summarize all the factors it used tocontrol frames. It was possible to use multiple control factors, but if you had an