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RunningDocTableEventsHandler.cs
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82 lines (71 loc) · 3.46 KB
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using System;
using System.Linq;
using EnvDTE;
using Microsoft.VisualStudio;
using Microsoft.VisualStudio.Shell;
using Microsoft.VisualStudio.Shell.Interop;
using Microsoft.VisualStudio.Text.Editor;
using Microsoft.VisualStudio.TextManager.Interop;
namespace JavaScriptPrettier
{
internal sealed class RunningDocTableEventsHandler : IVsRunningDocTableEvents3
{
private readonly PrettierPackage _package;
public RunningDocTableEventsHandler(PrettierPackage package)
{
_package = package;
}
public int OnAfterFirstDocumentLock(uint docCookie, uint dwRDTLockType, uint dwReadLocksRemaining, uint dwEditLocksRemaining) => VSConstants.S_OK;
public int OnBeforeLastDocumentUnlock(uint docCookie, uint dwRDTLockType, uint dwReadLocksRemaining, uint dwEditLocksRemaining) => VSConstants.S_OK;
public int OnAfterSave(uint docCookie) => VSConstants.S_OK;
public int OnAfterAttributeChange(uint docCookie, uint grfAttribs) => VSConstants.S_OK;
public int OnBeforeDocumentWindowShow(uint docCookie, int fFirstShow, IVsWindowFrame pFrame) => VSConstants.S_OK;
public int OnAfterDocumentWindowHide(uint docCookie, IVsWindowFrame pFrame) => VSConstants.S_OK;
public int OnAfterAttributeChangeEx(uint docCookie, uint grfAttribs, IVsHierarchy pHierOld, uint itemidOld, string pszMkDocumentOld, IVsHierarchy pHierNew, uint itemidNew, string pszMkDocumentNew) => VSConstants.S_OK;
public int OnBeforeSave(uint docCookie)
{
if (_package.optionPage.FormatOnSave)
{
RunningDocumentInfo docInfo = _package._runningDocTable.GetDocumentInfo(docCookie);
Document doc = _package._dte.Documents.OfType<Document>().SingleOrDefault(x => x.FullName == docInfo.Moniker);
if (doc != null)
{
IVsTextView vsTextView = GetIVsTextView(doc.FullName);
if (vsTextView == null)
{
return VSConstants.S_OK;
}
IWpfTextView wpfTextView = GetWpfTextView(vsTextView);
if (wpfTextView == null)
{
return VSConstants.S_OK;
}
PrettierCommand cmd;
if (wpfTextView.Properties.TryGetProperty<PrettierCommand>("prettierCommand", out cmd))
{
ThreadHelper.JoinableTaskFactory.Run(() => cmd.MakePrettierAsync());
}
}
}
return VSConstants.S_OK;
}
private IVsTextView GetIVsTextView(string filePath)
{
return VsShellUtilities.IsDocumentOpen(_package._serviceProvider, filePath, Guid.Empty, out var uiHierarchy, out uint itemId, out var windowFrame)
? VsShellUtilities.GetTextView(windowFrame) : null;
}
private static IWpfTextView GetWpfTextView(IVsTextView vTextView)
{
IWpfTextView view = null;
IVsUserData userData = (IVsUserData)vTextView;
if (userData != null)
{
Guid guidViewHost = Microsoft.VisualStudio.Editor.DefGuidList.guidIWpfTextViewHost;
userData.GetData(ref guidViewHost, out var holder);
IWpfTextViewHost viewHost = (IWpfTextViewHost)holder;
view = viewHost.TextView;
}
return view;
}
}
}