internal static void ApplyChangesToOneFile(
FileChange file, IVsTextLines textLines, bool createMarker, ChangeProposal changeToHighlight)
{
ArgumentValidation.CheckForNullReference(file, "file");
ArgumentValidation.CheckForNullReference(textLines, "textLines");
// Here we only work on text based ChangeProposal
// Sort all ChangeProposal in one file by the offset.
// After apply any change, the offset of next ChangeProposal will change.
// We need to sort all the changes first, so it will be easy to recalculate
// the new offset for next change.
var sortedChanges = SortChanges(file);
// Changes may cause the total line number of this file to be changed.
// This variable is used to keep this line changes.
var totalLineOffset = 0;
// In one line, changes may cause column number of that line to be changed.
// This variable is used to keep this column changes.
var totalColumnOffset = 0;
var pContent = IntPtr.Zero;
// Store result TextSpan info
var resultSpan = new[] { new TextSpan() };
foreach (var sortedChange in sortedChanges)
{
var change = sortedChange.Value;
// If user choose to apply this change
if (change.Included)
{
try
{
// If current change's StartLine is different from Last change's EndLine
// reset the columnOffset
if (resultSpan[0].iEndLine != change.StartLine + totalLineOffset)
{
totalColumnOffset = 0;
}
pContent = Marshal.StringToHGlobalAuto(change.NewValue);
// Calculate the current change's offset by applying lineOffset
// and columnOffset caused by previous changes
var startLine = change.StartLine + totalLineOffset;
var startColumn = change.StartColumn + totalColumnOffset;
var endLine = change.EndLine + totalLineOffset;
// Only apply columnOffset if current change's startLine is same as endLine
var endColumn = change.EndColumn + (startLine == endLine ? totalColumnOffset : 0);
textLines.ReplaceLines(
startLine, startColumn, endLine, endColumn,
pContent, change.NewValue.Length, resultSpan);
// Add the line offset caused by this change to total lineOffset;
var currentLineOffset = resultSpan[0].iEndLine - endLine;
totalLineOffset += currentLineOffset;
// Calculate the ColumnOffset after this change
totalColumnOffset = resultSpan[0].iEndIndex - change.EndColumn;
}
finally
{
if (pContent != IntPtr.Zero)
{
Marshal.FreeHGlobal(pContent);
}
}
}
// Create Marker for this change's textspan.
// If this change is the change to be highlighted, highlight it.
if (createMarker)
{
var textChangeToHighlight = changeToHighlight as TextChangeProposal;
var highlight = ((textChangeToHighlight != null) &&
(change.StartLine == textChangeToHighlight.StartLine) &&
(change.StartColumn == textChangeToHighlight.StartColumn));
CreateMarker(textLines, resultSpan[0], highlight);
}
}
}
/// <summary>
/// Display the refactoring preview for a selected preview changes node.
/// </summary>
/// <param name="vsTextView">The text view to show the file contents.</param>
/// <param name="fileChange">All changes in one file.</param>
/// <param name="node">The selected PreviewChangesNode.</param>
public void DisplayPreview(IVsTextView vsTextView, FileChange fileChange, PreviewChangesNode node)
{
ArgumentValidation.CheckForNullReference(vsTextView, "vsTextView");
ArgumentValidation.CheckForNullReference(node, "previewChangeNode");
if (fileChange != null)
{
// Get the temp file for this file extension, and copy all file content to the temp file text buffer
PreviewTempFile tempFile = null;
try
{
tempFile = GetPreviewTempFile(Path.GetExtension(fileChange.FileName));
}
catch (InvalidOperationException)
{
// Failed to get text buffer, just set the text view to nothing.
NativeMethods.ThrowOnFailure(vsTextView.SetBuffer(_bufferForNoChanges));
return;
}
// Copy the content of source file to that temp file text buffer
CopyFileToBuffer(fileChange.FileName, tempFile.TextBuffer);
// Create text markers on all changes on this file
RefactoringOperationBase.ApplyChangesToOneFile(fileChange, tempFile.TextBuffer, true, node.ChangeProposal);
// Set language service ID
// Get Language service ID on this change node
var languageServiceID = node.LanguageServiceID;
if (languageServiceID == Guid.Empty &&
node.ChildList != null &&
node.ChildList.Count > 0)
{
// If can not get the language service ID, check if it has child nodes
// if so, get the language service ID for first change in this file node.
languageServiceID = node.ChildList[0].LanguageServiceID;
}
if (languageServiceID != Guid.Empty)
{
NativeMethods.ThrowOnFailure(tempFile.TextBuffer.SetLanguageServiceID(ref languageServiceID));
}
// Set the vsTextView with textBuffer
NativeMethods.ThrowOnFailure(vsTextView.SetBuffer(tempFile.TextBuffer));
// Ensure visible of first line and set the caret to position (0,0)
ScrollInView(vsTextView, 0, 0, 0, 1);
// If there is ChangeProposal, make sure that change is visible in the text view.
// If ChangeProposal is null, that might be file node, make the first chagne visible.
// Here we will only work with Text based change proposal.
var visibleChange = node.ChangeProposal as TextChangeProposal;
if (visibleChange == null)
{
// Try to get first change in this file
if (node.ChildList != null &&
node.ChildList.Count > 0)
{
visibleChange = node.ChildList[0].ChangeProposal as TextChangeProposal;
}
}
if (visibleChange != null)
{
// There are some changes, create TextSpan for first change,
// and make the cursor position to that TextSpan.
ScrollInView(
vsTextView, visibleChange.StartLine, visibleChange.StartColumn,
visibleChange.EndLine, visibleChange.EndColumn);
}
// Save the state, this will be used to refresh the text view when preview request
// changed, such as check/uncheck
_lastTextView = vsTextView;
_lastDisplayedFileChange = fileChange;
_lastDisplayedNode = node;
}
else
{
// No related file to this node, set nothing for the text view.
NativeMethods.ThrowOnFailure(vsTextView.SetBuffer(_bufferForNoChanges));
}
}
protected override IList<FileChange> GetFileChanges()
{
var fileChangeMap = new Dictionary<string, FileChange>();
using (WaitCursorHelper.NewWaitCursor())
{
var artifact = _contributorInput.ObjectToBeRenamed.Artifact;
var artifactProjectItem = VsUtils.GetProjectItemForDocument(artifact.Uri.LocalPath, Services.ServiceProvider);
if (artifactProjectItem != null)
{
// Run the custom tool to ensure the generated code is up-to-date
VsUtils.RunCustomTool(artifactProjectItem);
var generatedCodeProjectItem = VsUtils.GetGeneratedCodeProjectItem(artifactProjectItem);
if (generatedCodeProjectItem != null)
{
var generatedItemPath = generatedCodeProjectItem.get_FileNames(1);
var objectSearchLanguage = FileExtensions.VbExt.Equals(
Path.GetExtension(generatedItemPath), StringComparison.OrdinalIgnoreCase)
? ObjectSearchLanguage.VB
: ObjectSearchLanguage.CSharp;
var codeElements = generatedCodeProjectItem.FileCodeModel.CodeElements.OfType<CodeElement2>();
CodeElementRenameData renameData = null;
// Check if we're refactoring an EntityType or Property
var entityType = _contributorInput.ObjectToBeRenamed as EntityType;
var property = _contributorInput.ObjectToBeRenamed as Property;
if (entityType != null)
{
var newEntitySetName = _contributorInput.NewName;
var pluralize = ModelHelper.GetDesignerPropertyValueFromArtifactAsBool(
OptionsDesignerInfo.ElementName, OptionsDesignerInfo.AttributeEnablePluralization,
OptionsDesignerInfo.EnablePluralizationDefault, artifact);
// Pluralize the entity set name if the setting it turned on
if (pluralize)
{
var pluralizationService = DependencyResolver.GetService<IPluralizationService>();
newEntitySetName = pluralizationService.Pluralize(_contributorInput.NewName);
}
renameData = new CodeElementRenameData(
_contributorInput.NewName, newEntitySetName, _contributorInput.OldName, entityType.EntitySet.Name.Value);
}
else if (property != null)
{
if (property.EntityType != null)
{
renameData = new CodeElementRenameData(
_contributorInput.NewName, _contributorInput.OldName, property.EntityType.Name.Value);
}
}
if (renameData != null)
{
var codeElementsToRename = new Dictionary<CodeElement2, Tuple<string, string>>();
CodeElementUtilities.FindRootCodeElementsToRename(
codeElements, renameData, generatedItemPath, objectSearchLanguage, ref codeElementsToRename);
var changeProposals = new List<ChangeProposal>();
// We may need to rename more than one object, as type names affect functions and entity set properties. This means we need to loop through and
// process each root item change in the generated code designer file.
foreach (var codeElementToRename in codeElementsToRename.Keys)
{
var nameTuple = codeElementsToRename[codeElementToRename];
CodeElementUtilities.CreateChangeProposals(
codeElementToRename, nameTuple.Item1, nameTuple.Item2, generatedItemPath,
changeProposals, objectSearchLanguage);
}
// Now sort the change proposals by filename so that we can return a list of file changes
foreach (var changeProposal in changeProposals)
{
FileChange fileChange;
HashSet<ChangeProposal> fileChangeProposals;
if (fileChangeMap.TryGetValue(changeProposal.FileName, out fileChange))
{
fileChangeProposals = fileChange.ChangeList.Values.First();
}
else
{
fileChange = new FileChange(changeProposal.FileName);
fileChangeProposals = new HashSet<ChangeProposal>();
fileChange.ChangeList.Add(
new KeyValuePair<RefactoringPreviewGroup, HashSet<ChangeProposal>>(
new RefactoringPreviewGroup(Resources.RefactorPreviewGroupName), fileChangeProposals));
fileChangeMap.Add(changeProposal.FileName, fileChange);
}
if (!fileChangeProposals.Contains(changeProposal))
{
fileChangeProposals.Add(changeProposal);
}
}
}
}
}
}
return fileChangeMap.Values.ToList();
}
/// <summary>
/// Display the refactoring preview for a selected preview changes node.
/// </summary>
/// <param name="vsTextView">The text view to show the file contents.</param>
/// <param name="fileChange">All changes in one file.</param>
/// <param name="node">The selected PreviewChangesNode.</param>
public void DisplayPreview(IVsTextView vsTextView, FileChange fileChange, PreviewChangesNode node)
{
ArgumentValidation.CheckForNullReference(vsTextView, "vsTextView");
ArgumentValidation.CheckForNullReference(node, "previewChangeNode");
if (fileChange != null)
{
// Get the temp file for this file extension, and copy all file content to the temp file text buffer
PreviewTempFile tempFile = null;
try
{
tempFile = GetPreviewTempFile(Path.GetExtension(fileChange.FileName));
}
catch (InvalidOperationException)
{
// Failed to get text buffer, just set the text view to nothing.
NativeMethods.ThrowOnFailure(vsTextView.SetBuffer(_bufferForNoChanges));
return;
}
// Copy the content of source file to that temp file text buffer
CopyFileToBuffer(fileChange.FileName, tempFile.TextBuffer);
// Create text markers on all changes on this file
RefactoringOperationBase.ApplyChangesToOneFile(fileChange, tempFile.TextBuffer, true, node.ChangeProposal);
// Set language service ID
// Get Language service ID on this change node
var languageServiceID = node.LanguageServiceID;
if (languageServiceID == Guid.Empty
&& node.ChildList != null
&& node.ChildList.Count > 0)
{
// If can not get the language service ID, check if it has child nodes
// if so, get the language service ID for first change in this file node.
languageServiceID = node.ChildList[0].LanguageServiceID;
}
if (languageServiceID != Guid.Empty)
{
NativeMethods.ThrowOnFailure(tempFile.TextBuffer.SetLanguageServiceID(ref languageServiceID));
}
// Set the vsTextView with textBuffer
NativeMethods.ThrowOnFailure(vsTextView.SetBuffer(tempFile.TextBuffer));
// Ensure visible of first line and set the caret to position (0,0)
ScrollInView(vsTextView, 0, 0, 0, 1);
// If there is ChangeProposal, make sure that change is visible in the text view.
// If ChangeProposal is null, that might be file node, make the first chagne visible.
// Here we will only work with Text based change proposal.
var visibleChange = node.ChangeProposal as TextChangeProposal;
if (visibleChange == null)
{
// Try to get first change in this file
if (node.ChildList != null
&& node.ChildList.Count > 0)
{
visibleChange = node.ChildList[0].ChangeProposal as TextChangeProposal;
}
}
if (visibleChange != null)
{
// There are some changes, create TextSpan for first change,
// and make the cursor position to that TextSpan.
ScrollInView(
vsTextView, visibleChange.StartLine, visibleChange.StartColumn,
visibleChange.EndLine, visibleChange.EndColumn);
}
// Save the state, this will be used to refresh the text view when preview request
// changed, such as check/uncheck
_lastTextView = vsTextView;
_lastDisplayedFileChange = fileChange;
_lastDisplayedNode = node;
}
else
{
// No related file to this node, set nothing for the text view.
NativeMethods.ThrowOnFailure(vsTextView.SetBuffer(_bufferForNoChanges));
}
}