private void InstallIfNeeded(IVsShell shellService)
{
if (shellService == null)
{
ShellDialogs.Error(this, Resources.ErrorMessage_ShellServiceUnavailable);
return;
}
ThreadHelper.ThrowIfNotOnUIThread();
shellService.GetProperty((int)__VSSPROPID2.VSSPROPID_VisualStudioDir, out object documentsDirObj);
string documentsDir = documentsDirObj.ToString();
string targetPath = Path.Combine(documentsDir, "Visualizers");
InstallationInfo installedVersion = InstallationManager.GetInstallationInfo(targetPath);
InstallationInfo availableVersion = InstallationManager.AvailableVersion;
if (installedVersion.Installed && (installedVersion.Version == null || installedVersion.Version >= availableVersion.Version))
{
return;
}
InstallationManager.Install(targetPath, out string error, out string warning);
if (error != null)
{
ShellDialogs.Error(this, Res.ErrorMessageFailedToInstall(targetPath, error));
}
else if (warning != null)
{
ShellDialogs.Warning(this, Res.WarningMessageInstallationFinishedWithWarning(targetPath, warning));
}
else if (installedVersion.Installed && installedVersion.Version != null)
{
ShellDialogs.Info(this, Res.InfoMessageUpgradeFinished(installedVersion.Version, availableVersion.Version, targetPath));
}
else
{
ShellDialogs.Info(this, Res.InfoMessageInstallationFinished(availableVersion.Version, targetPath));
}
}