obsolete/Microsoft.VisualStudio.Project/SuspendFileChanges.cs - Issue 10928195: First round of dead file removal

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Issue 10928195: First round of dead file removal (Closed) Base URL: https://github.com/samclegg/nativeclient-sdk.git@master

Patch Set: Created 8 years, 3 months ago

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1 /// Copyright (c) Microsoft Corporation. All rights reserved.

2

3 using System;

4 using System.Diagnostics;

5 using System.Runtime.InteropServices;

6 using Microsoft.VisualStudio;

7 using Microsoft.VisualStudio.Shell.Interop;

8 using IServiceProvider = System.IServiceProvider;

9 using ShellConstants = Microsoft.VisualStudio.Shell.Interop.Constants;

10

11 namespace Microsoft.VisualStudio.Project

12 {

13 /// <summary>

14 /// helper to make the editor ignore external changes

15 /// </summary>

16 internal class SuspendFileChanges

17 {

18 private string documentFileName;

19

20 private bool isSuspending;

21

22 private IServiceProvider site;

23

24 private IVsDocDataFileChangeControl fileChangeControl;

25

26 public SuspendFileChanges(IServiceProvider site, string document )

27 {

28 this.site = site;

29 this.documentFileName = document;

30 }

31

32

33 [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Perf ormance", "CA1800:DoNotCastUnnecessarily")]

34 public void Suspend()

35 {

36 if(this.isSuspending)

37 return;

38

39 IntPtr docData = IntPtr.Zero;

40 try

41 {

42 IVsRunningDocumentTable rdt = this.site.GetServi ce(typeof(SVsRunningDocumentTable)) as IVsRunningDocumentTable;

43

44 IVsHierarchy hierarchy;

45 uint itemId;

46 uint docCookie;

47 IVsFileChangeEx fileChange;

48

49

50 if(rdt == null) return;

51

52 ErrorHandler.ThrowOnFailure(rdt.FindAndLockDocum ent((uint)_VSRDTFLAGS.RDT_NoLock, this.documentFileName, out hierarchy, out item Id, out docData, out docCookie));

53

54 if((docCookie == (uint)ShellConstants.VSDOCCOOKI E_NIL) \|\| docData == IntPtr.Zero)

55 return;

56

57 fileChange = this.site.GetService(typeof(SVsFile ChangeEx)) as IVsFileChangeEx;

58

59 if(fileChange != null)

60 {

61 this.isSuspending = true;

62 ErrorHandler.ThrowOnFailure(fileChange.I gnoreFile(0, this.documentFileName, 1));

63 if(docData != IntPtr.Zero)

64 {

65 IVsPersistDocData persistDocData = null;

66

67 // if interface is not supported , return null

68 object unknown = Marshal.GetObje ctForIUnknown(docData);

69 if(unknown is IVsPersistDocData)

70 {

71 persistDocData = (IVsPer sistDocData)unknown;

72 if(persistDocData is IVs DocDataFileChangeControl)

73 {

74 this.fileChangeC ontrol = (IVsDocDataFileChangeControl)persistDocData;

75 if(this.fileChan geControl != null)

76 {

77 ErrorHan dler.ThrowOnFailure(this.fileChangeControl.IgnoreFileChanges(1));

78 }

79 }

80 }

81 }

82 }

83 }

84 catch(InvalidCastException e)

85 {

86 Trace.WriteLine("Exception" + e.Message);

87 }

88 finally

89 {

90 if(docData != IntPtr.Zero)

91 {

92 Marshal.Release(docData);

93 }

94 }

95 return;

96 }

97

98 public void Resume()

99 {

100 if(!this.isSuspending)

101 return;

102 IVsFileChangeEx fileChange;

103 fileChange = this.site.GetService(typeof(SVsFileChangeEx )) as IVsFileChangeEx;

104 if(fileChange != null)

105 {

106 this.isSuspending = false;

107 ErrorHandler.ThrowOnFailure(fileChange.IgnoreFil e(0, this.documentFileName, 0));

108 if(this.fileChangeControl != null)

109 {

110 ErrorHandler.ThrowOnFailure(this.fileCha ngeControl.IgnoreFileChanges(0));

111 }

112 }

113 }

114 }

115 }

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