private void _btnInstall_Click(object sender, System.EventArgs e)
{
if (_dlgBrowseForExtension.ShowDialog() == DialogResult.OK)
{
foreach (BlogExtensionData data in RSSPlugin.ExtensionManager.BlogExtensions)
{
if (String.Compare(data.FileName, _dlgBrowseForExtension.FileName, true) == 0)
{
MessageBox.Show(this,
"The extension '" + _dlgBrowseForExtension.FileName + "' is already installed",
"Install Extension");
return;
}
}
BlogExtensionData extData = RSSPlugin.ExtensionManager.InstallExtension(_dlgBrowseForExtension.FileName);
if (extData == null)
{
MessageBox.Show(this, "The file you selected is not a weblog client extension", "Install Extension");
}
else
{
AddExtensionDataToList(extData);
}
}
}
private void AddExtensionDataToList(BlogExtensionData extData)
{
ListViewItem lvItem = _lvExtensions.Items.Add(extData.BlogExtension.DisplayName);
lvItem.SubItems.Add(Path.GetFileName(extData.FileName));
lvItem.Tag = extData;
if (_lvExtensions.Items.Count == 1)
{
lvItem.Selected = true;
}
}
private void _btnUninstall_Click(object sender, System.EventArgs e)
{
BlogExtensionData extData = (BlogExtensionData)_lvExtensions.SelectedItems [0].Tag;
if (MessageBox.Show(this, "Do you really want to uninstall the extension '" +
extData.BlogExtension.DisplayName + "'?",
"Uninstall Extension", MessageBoxButtons.YesNo) == DialogResult.Yes)
{
RSSPlugin.ExtensionManager.UninstallExtension(extData);
_lvExtensions.Items.RemoveAt(_lvExtensions.SelectedIndices [0]);
}
}
internal BlogExtensionData InstallExtension(string fileName)
{
BlogExtensionData extData = LoadExtension(fileName);
if (extData == null)
{
return(null);
}
RegUtil.CreateSubKey(Registry.CurrentUser, _extensionKey);
RegUtil.SetValue(Registry.CurrentUser, _extensionKey, Path.GetFileNameWithoutExtension(fileName), fileName);
return(extData);
}
private BlogExtensionData LoadExtension(string fileName)
{
Type[] pluginTypes;
try
{
Assembly pluginAssembly = Assembly.LoadFrom(fileName);
pluginTypes = pluginAssembly.GetExportedTypes();
}
catch (Exception e)
{
Trace.WriteLine(e.ToString());
return(null);
}
// search for IPlugin instances
foreach (Type aType in pluginTypes)
{
foreach (Type intfType in aType.GetInterfaces())
{
if (intfType == typeof(IBlogExtension))
{
IBlogExtension extension;
try
{
extension = (IBlogExtension)Activator.CreateInstance(aType);
}
catch (Exception ex)
{
if (ex is TargetInvocationException)
{
ex = (ex as TargetInvocationException).InnerException;
}
DialogResult dr = MessageBox.Show(Core.MainWindow,
"Exception when initializing weblog posting extension " + fileName +
":\r\n" + ex.Message + "\r\nWould you like to uninstall the extension?",
Core.ProductFullName, MessageBoxButtons.YesNo);
if (dr == DialogResult.Yes)
{
UninstallExtensionFile(fileName);
}
return(null);
}
IAction extAction = RegisterBlogExtensionAction(extension);
BlogExtensionData extData = new BlogExtensionData(fileName, extension, extAction);
_blogExtensions.Add(extData);
return(extData);
}
}
}
return(null);
}
private void _lvExtensions_SelectedIndexChanged(object sender, System.EventArgs e)
{
if (_lvExtensions.SelectedItems.Count > 0)
{
BlogExtensionData extData = (BlogExtensionData)_lvExtensions.SelectedItems [0].Tag;
_btnConfigure.Enabled = extData.BlogExtension.HasConfiguration;
_btnUninstall.Enabled = true;
}
else
{
_btnConfigure.Enabled = false;
_btnUninstall.Enabled = false;
}
}
private void _btnConfigure_Click(object sender, System.EventArgs e)
{
if (_lvExtensions.SelectedItems.Count > 0)
{
BlogExtensionData extData = (BlogExtensionData)_lvExtensions.SelectedItems [0].Tag;
try
{
extData.BlogExtension.Configure(this);
}
catch (Exception ex)
{
MessageBox.Show(this, "Error configuring extension: " + ex.Message,
"Configure Extension", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
internal void UninstallExtension(BlogExtensionData extData)
{
UninstallExtensionFile(extData.FileName);
Core.ActionManager.UnregisterContextMenuAction(extData.Action);
_blogExtensions.Remove(extData);
}
