public PluginEventHandler GetEventHandler(IPagePlugin pluginInstance)
{
PagePluginHandler pageHandler = this.commandHandler.pageHandler;
if (pageHandler.pluginAttribute.Reusable)
{
IPagePlugin target = pageHandler.GetPluginInstance();
return(this.CreateEventHandler(target, this.methodInfo));
}
return(this.CreateEventHandler(pluginInstance, this.methodInfo));
}
private static void FindPagePlugin(Type plugin_type)
{
PagePluginAttribute attribute = plugin_type.GetCustomAttributes(typeof(PagePluginAttribute), false).FirstOrDefault <object>() as PagePluginAttribute;
if ((attribute != null) && !string.IsNullOrWhiteSpace(attribute.PageName))
{
string key = attribute.PageName.ToLower();
if (pluginHandlers.ContainsKey(key))
{
Type pluginType = pluginHandlers[key].pluginType;
throw new ApplicationExceptionFormat("页面{0}存在重复插件{1}和{2}", new object[] { attribute.PageName, plugin_type, pluginType });
}
PagePluginHandler handler = new PagePluginHandler(attribute, plugin_type);
pluginHandlers.Add(key, handler);
}
}
private static CommandHandler GetCommandPluginHandler(Control sender)
{
if (sender == null)
{
throw new ArgumentNullException("sender");
}
string pagePluginKey = GetPagePluginKey(sender.GetAbsolutePage());
if (pluginHandlers.ContainsKey(pagePluginKey))
{
PagePluginHandler handler = pluginHandlers[pagePluginKey];
if (handler.CommandHandlers.ContainsKey(sender.ID))
{
return(handler.CommandHandlers[sender.ID]);
}
}
return(null);
}
public static IPagePlugin GetPlugin(Page page)
{
string pagePluginKey = GetPagePluginKey(page);
if (pluginHandlers.ContainsKey(pagePluginKey))
{
PagePluginHandler handler = pluginHandlers[pagePluginKey];
if (handler.pluginAttribute.Reusable)
{
return(handler.GetPluginInstance());
}
IPagePlugin plugin = Activator.CreateInstance(handler.pluginType) as IPagePlugin;
if (plugin == null)
{
throw new ApplicationExceptionFormat("创建页面{0}插件{1}的实例失败", new object[] { handler.pluginAttribute.PageName, handler.pluginType });
}
return(plugin);
}
return(null);
}
public CommandHandler(PagePluginHandler _pageHandler)
{
this.pageHandler = _pageHandler;
this.beforeActions = new List <CommandPluginHandler>();
this.afterActions = new List <CommandPluginHandler>();
}