如何从IVsTextView获取IEditorOperations?

问题描述

我正在开发我的第一个Visual Studio(2015社区)命令菜单，并且试图访问IEditorOperations来删除文本，发送退格键等.但是我不确定该怎么做.我可以做到:

I'm developing my first Visual Studio (2015 Community) Command Menu and I'm trying to get access to IEditorOperations to delete text, send backspace etc. but I'm not sure how to. I can do:

var Service = Provider.GetService(typeof(IEditorOperationsFactoryService)) as IEditorOperationsFactoryService;
Service.GetEditorOperations(???);

我不确定要在???中传递什么，因为我没有访问ITextView的权限，而是通过以下方式获得了IVsTExtView的权限:

I'm not sure what to pass in the ??? since I don't have access to an ITextView instead what I have is a IVsTExtView via:

IVsTextView View;
IVsTextManager Manager = (IVsTextManager)ServiceProvider.GetService(typeof(SVsTextManager));
int MustHaveFocus = 1;
Manager.GetActiveView(MustHaveFocus, null, out View);

在创建命令菜单"时，VS会使用私有ctor为我生成一个模板，该ctor创建命令服务，并将其绑定到命令集ID等.覆盖的Initialize方法和一堆属性.

When creating the Command Menu, VS generates a template for me with a private ctor creating the command service, binding it to the command set id etc. An overridden Initialize method, and a bunch of properties.

有什么想法吗?

编辑:在谢尔盖(Sergey)的帮助下，我设法进一步走了一步.但是现在当我尝试获取IEditorOperationsFactoryService时，我得到一个空值，所有其他值都有效.

After help from Sergey, I managed to get a bit further. But now I get a null when I try to get the IEditorOperationsFactoryService, all the other values are valid.

static IEditorOperations GetEditorService(IServiceProvider Provider, IVsTextView VsView)
    {
        IEditorOperations Result;

        try
        {
            var Model = (IComponentModel)Provider.GetService(typeof(SComponentModel));
            var Editor = (IEditorOperationsFactoryService)Provider.GetService(typeof(IEditorOperationsFactoryService)); // returns null

            var Adaptor = Model.GetService<IVsEditorAdaptersFactoryService>();
            IWpfTextView TextView = Adaptor.GetWpfTextView(VsView);
            Result = Editor.GetEditorOperations(TextView);
        }
        catch (Exception e)
        {
            System.Windows.Forms.MessageBox.Show(e.ToString());
            Result = null;
        }

        return (Result);
    }

推荐答案

您可以从名为Model的变量获取IEditorOperationsFactoryService实例，如下所示:

You can get IEditorOperationsFactoryService instance from variable named Model, like this:

var Model = (IComponentModel)this.ServiceProvider.GetService(typeof(SComponentModel));

var Editor = (IEditorOperationsFactoryService)Model.GetService<IEditorOperationsFactoryService>();

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