Add-on update check interface: select the first available update entr…

…y. re nvaccess#3208.

By using a combination of Select and SetState functions, select the first add-on update entry if updates are available. This is the same trick used in ad-dons manager, config profiles dilaog and others for selecting the first entry.

source/gui/addonGui.py

@@ -383,6 +383,8 @@ def __init__(self,parent, addonUpdateInfo, auto=True):
 			for entry in sorted(addonUpdateInfo.keys()):
 				addon = addonUpdateInfo[entry]
 				self.addonsList.Append((addon['summary'], addon['curVersion'], addon['version']))
+				self.addonsList.Select(0)
+				self.addonsList.SetItemState(0,wx.LIST_STATE_FOCUSED,wx.LIST_STATE_FOCUSED)
 			addonsSizerHelper.addItem(entriesSizer)
 		else:
 			# Translators: Message displayed when no add-on updates are available.