//A Simple Home-brew class to hold some info about our Available Plugins
/// <summary>
/// Add a Plugin to the collection of Available plugins
/// </summary>
/// <param name="pluginToAdd">The Plugin to Add</param>
public void Add( AvailablePlugin pluginToAdd )
{
this.List.Add(pluginToAdd);
}
/// <summary>
/// Remove a Plugin to the collection of Available plugins
/// </summary>
/// <param name="pluginToRemove">The Plugin to Remove</param>
public void Remove( AvailablePlugin pluginToRemove )
{
this.List.Remove(pluginToRemove);
}
private void AddPlugin( string FileName )
{
//Create a new assembly from the plugin file we're adding..
Assembly pluginAssembly = Assembly.LoadFrom(FileName);
//Next we'll loop through all the Types found in the assembly
foreach ( Type pluginType in pluginAssembly.GetTypes() )
{
if ( pluginType.IsPublic ) //Only look at public types
{
if ( !pluginType.IsAbstract ) //Only look at non-abstract types
{
Type typeInterface = null;
//Gets a type object of the interface we need the plugins to match
try
{
typeInterface = pluginType.GetInterface("SimpleEditPluginInterface.SEPlugin");
}
catch
{
//MessageBox.Show("The plugin '" + FileName + "' is not a valid SimpleEdit plugin.", "SimpleEdit", MessageBoxButton.OK, MessageBoxImage.Error, MessageBoxResult.OK);
MessageBox.Show("The plugin '" + FileName + "' is not a valid SimpleEdit plugin.", "SimpleEdit", MessageBoxButtons.OK, MessageBoxIcon.Error, MessageBoxDefaultButton.Button1);
return;
}
//Make sure the interface we want to use actually exists
if ( typeInterface != null )
{
//Create a new available plugin since the type implements the IPlugin interface
AvailablePlugin newPlugin = new AvailablePlugin();
//Set the filename where we found it
newPlugin.AssemblyPath = FileName;
//Create a new instance and store the instance in the collection for later use
//We could change this later on to not load an instance.. we have 2 options
//1- Make one instance, and use it whenever we need it.. it's always there
//2- Don't make an instance, and instead make an instance whenever we use it, then close it
//For now we'll just make an instance of all the plugins
newPlugin.Instance = (SEPlugin)Activator.CreateInstance(pluginAssembly.GetType(pluginType.ToString()));
//Set the Plugin's host to this class which inherited IPluginHost
//newPlugin.Instance.Host = this;
//Call the initialization sub of the plugin
//newPlugin.Instance.Initialize();
//Add the new plugin to our collection here
this.colAvailablePlugins.Add(newPlugin);
//cleanup a bit
newPlugin = null;
}
typeInterface = null; //Mr. Clean
}
}
}
pluginAssembly = null; //more cleanup
}
