/// <summary>
/// Get the LINQ-to-XML settings element for this specific plugin.
/// </summary>
/// <param name="plugin">The plugin.</param>
/// <param name="attribute">The attribute holding this plugin's details.</param>
/// <param name="returnNullIfNotExists">
/// True if you want to return a null if the element doesn't exist.
/// Otherwise, this prompts the user to create the element.
/// </param>
/// <returns>The LINQ-to-XML settings element for this specific plugin.</returns>
static XElement GetSettingsElementFor(Plugin plugin, PluginAttribute attribute, bool returnNullIfNotExists = false)
{
XElement[] element = Settings.Root
.Element("plugins")
.Elements("plugin")
.Where(x => x.Attribute("name").Value == attribute.PluginName &&
x.Attribute("author").Value == attribute.PluginAuthor)
.ToArray();
if (element.Length > 0 || returnNullIfNotExists)
{
return element.First();
// if returnNullIfNotExists, this will be called regardless,
// meaning that a null will be returned if element.Length == 0
}
else
{
return GetNewSettingsElementFor(plugin, attribute);
}
}
/// <summary>
/// Load a specific plugin into program memory.
/// </summary>
/// <param name="pluginType">The System.Type object representing the plugin.</param>
/// <param name="newPlugin">The plugin as an object.</param>
/// <param name="attribute">The attribute representing the plugin's details.</param>
private static void LoadPlugin(Type pluginType, Plugin newPlugin, PluginAttribute attribute)
{
bool enablePlugin = newPlugin.Settings
.Element("enabled")
.Value.ToLower() == "true";
if (enablePlugin)
{
if (attribute != null)
{
AddPluginToList(newPlugin,
attribute.PluginName,
attribute.PluginVersion,
attribute.PluginAuthor);
}
else
{
Events.Enqueue("Missing attributes for " + pluginType.Name);
}
}
else
{
Events.Enqueue("Plugin disabled: " + pluginType.Name);
}
}
/// <summary>
/// Prompts the user if they want to enable a new plugin, disable a new plugin, or skip loading it.
/// The plugin will be processed according to the user's input.
/// </summary>
/// <param name="plugin">The plugin to load.</param>
/// <param name="attribute">The PluginAttribute representing the plugin to load.</param>
/// <returns>A new XElement object representing the plugin and its' settings, or null if the user chose not to load it.</returns>
private static XElement GetNewSettingsElementFor(Plugin plugin, PluginAttribute attribute)
{
DialogResult result = MessageBox.Show(
"Plugin " + attribute.PluginName + " by " + attribute.PluginAuthor + " has not been used before.\r\n" +
"Do you want to enable this plugin? Click Cancel to skip this plugin.", "Enable Plugin",
MessageBoxButtons.YesNoCancel, MessageBoxIcon.Warning);
if (result != DialogResult.Cancel)
{
Settings.Root
.Element("plugins")
.Add(new XElement("plugin",
new XAttribute("name", attribute.PluginName),
new XAttribute("author", attribute.PluginAuthor),
new XElement("enabled", result == DialogResult.Yes)));
return GetSettingsElementFor(plugin, attribute, true);
}
else
{
return null;
}
}