solved compatibility issues with NVDA Alpha V28351 and above. It closes

#92, closes #93 and closes #95.

addon/globalPlugins/_ibmttsUtils.py

@@ -3,15 +3,15 @@
 # Author: David CM <dhf360@gmail.com> and others.
 #globalPlugins/_ibmttsutils.py
 
-import config, json, os, pickle, ssl, time, winUser, wx, zipfile
+import addonAPIVersion, config, json, os, pickle, ssl, time, winUser, wx, zipfile
 from os import path
 from ctypes import windll
 from urllib.request import urlopen
 
 import globalVars, gui, addonHandler
 from core import callLater
 from logHandler import log
-from gui.addonGui import _showAddonRequiresNVDAUpdateDialog, _showAddonTooOldDialog, promptUserForRestart
+from gui.addonGui import promptUserForRestart
 
 addonHandler.initTranslation()
 
@@ -140,7 +140,7 @@ def guiInstallAddon(addonPath):
 		)
 		return False
 	if not addonHandler.addonVersionCheck.hasAddonGotRequiredSupport(bundle):
-		_showAddonRequiresNVDAUpdateDialog(gui.MainFrame, bundle)
+		_showAddonRequiresNVDAUpdateDialog(gui.mainFrame, bundle)
 		return False
 	if not addonHandler.addonVersionCheck.isAddonTested(bundle):
 		_showAddonTooOldDialog(gui.mainFrame, bundle)
@@ -382,3 +382,43 @@ def updateTimer(self):
 			self.autoCheckUpdate()
 		else:
 			self.timer = callLater(nextTime, self.autoCheckUpdate)
+
+
+def _showAddonRequiresNVDAUpdateDialog(parent, bundle):
+	incompatibleMessage = _(
+		# Translators: The message displayed when installing an add-on package is prohibited,
+		# because it requires a later version of NVDA than is currently installed.
+		"Installation of {summary} {version} has been blocked. The minimum NVDA version required for "
+		"this add-on is {minimumNVDAVersion}, your current NVDA version is {NVDAVersion}"
+	).format(
+		summary=bundle.manifest['summary'],
+		version=bundle.manifest['version'],
+		minimumNVDAVersion=addonAPIVersion.formatForGUI(bundle.minimumNVDAVersion),
+		NVDAVersion=addonAPIVersion.formatForGUI(addonAPIVersion.CURRENT)
+	)
+	gui.messageBox(
+		# Translators: The message displayed when an error occurs when opening an add-on package for adding.
+		incompatibleMessage,
+		# Translators: The title of a dialog presented when an error occurs.
+		_("Add-on not compatible"),
+		wx.OK | wx.ICON_ERROR
+	)
+
+
+def _showAddonTooOldDialog(parent, bundle):
+	msg = _(
+		# Translators: A message informing the user that this addon can not be installed
+		# because it is not compatible.
+		"Installation of {summary} {version} has been blocked."
+		" An updated version of this add-on is required,"
+		" the minimum add-on API supported by this version of NVDA is {backCompatToAPIVersion}"
+	).format(
+		backCompatToAPIVersion=addonAPIVersion.formatForGUI(addonAPIVersion.BACK_COMPAT_TO),
+		**bundle.manifest
+	)
+	gui.messageBox(
+		msg,
+		# Translators: The title of the dialog presented when the add-on is too old.
+		_("Add-on not compatible"),
+		wx.OK | wx.ICON_ERROR
+	)