// This method is called after the string has been committed to the source buffer.
/// <summary>
/// Called after the declaration has been committed to the source file. When implemented in a derived class, it provides a completion character which may itself be a trigger for another round of IntelliSense.
/// </summary>
/// <param name="textView">[in] An <see cref="T:Microsoft.VisualStudio.TextManager.Interop.IVsTextView"/> object representing the view that displays the source file.</param>
/// <param name="committedText">[in] A string containing the text that was inserted as part of the completion process.</param>
/// <param name="commitCharacter">[in] The character that was used to commit the text to the source file.</param>
/// <param name="index">[in] The index of the item that was committed to the source file.</param>
/// <returns>
/// Returns a character to be inserted after the committed text. If nothing is to be inserted, returns 0.
/// </returns>
public override char OnAutoComplete(IVsTextView textView,
string committedText,
char commitCharacter,
int index)
{
/*
* // Do not replace when committed with \13 (enter)
* if (commitCharacter == 13)
* return '\0';
*/
if (index < 0)
{
return('\0');
}
Declaration declaration = declarations[index];
if (declaration != null)
{
// In this example, MyDeclaration identifies types with a string.
// You can choose a different approach.
if (declaration.DeclarationType == DeclarationType.Snippet)
{
Source source = languageService.GetSource(textView);
if (source != null)
{
ExpansionProvider expansionProvider = source.GetExpansionProvider();
if (expansionProvider != null)
{
string title;
string path;
int commitLength = commitSpan.iEndIndex - commitSpan.iStartIndex;
if (commitLength < committedText.Length)
{
// Replace everything that was inserted
// so calculate the span of the full
// insertion, taking into account what
// was inserted when the commitSpan
// was obtained in the first place.
commitSpan.iEndIndex += (committedText.Length - commitLength);
}
if (expansionProvider.FindExpansionByShortcut(textView,
committedText,
commitSpan,
true,
out title,
out path) == 0)
{
expansionProvider.InsertNamedExpansion(textView,
title,
path,
commitSpan,
false);
}
}
}
}
}
return('\0');
}
public override bool OnSynchronizeDropdowns(
Microsoft.VisualStudio.Package.LanguageService languageService,
IVsTextView textView,
int line,
int col,
ArrayList dropDownTypes,
ArrayList dropDownMembers,
ref int selectedType,
ref int selectedMember)
{
//
var package = XSharp.Project.XSharpProjectPackage.Instance;
var optionsPage = package.GetIntellisenseOptionsPage();
var sortItems = optionsPage.SortNavigationBars;
var includeFields = optionsPage.IncludeFieldsInNavigationBars;
var currentTypeOnly = optionsPage.ShowMembersOfCurrentTypeOnly;
if (optionsPage.DisableEditorDropdowns)
{
dropDownTypes.Clear();
dropDownMembers.Clear();
selectedType = selectedMember = -1;
return(true);
}
// when the line did not change, we do nothing for performance reasons
// this speeds up typing for buffers with lots of entities
if (line == lastLine)
{
// same line, no changes
return(false);
}
lastLine = line;
Source src = languageService.GetSource(textView);
string srcFile = src.GetFilePath();
//
XFile file = XSolution.FindFullPath(srcFile);
if (file == null || file.TypeList == null)
{
return(false);
}
XElement selectedElement = file.FindMemberAtRow(line);
if (selectedElement == _lastSelected)
{
// Same element, no changes
return(false);
}
// check if we are on the same type. When not then we need to reload the members.
// Note that the first item in the members combo can also be a type (Classname)
XElement parentType = null;
if (selectedElement is XTypeMember)
{
parentType = selectedElement.Parent;
}
else if (selectedElement is XType)
{
parentType = selectedElement as XType;
}
bool newType = true;
if (parentType != null && _lastType != null && parentType.FullName == _lastType.FullName)
{
newType = false;
}
// when we are on the same type and there are no new methods then we can
// select the element in the members combo and we do not have to rebuild the members
// list. We must set the selectedType and selectedMember
if (!newType && file.ContentHashCode == _lastHashCode && lastIncludeFields == includeFields && lastCurrentTypeOnly == currentTypeOnly)
{
// no need to rebuild the list. Just focus to another element
// locate item in members collection
selectedMember = -1;
selectedType = -1;
for (int i = 0; i < dropDownMembers.Count; i++)
{
var member = (XDropDownMember)dropDownMembers[i];
if (member.Element.ComboPrototype == selectedElement.ComboPrototype)
{
selectedMember = i;
break;
}
}
// find the parentType in the types combo
if (selectedMember != -1 && parentType != null) // should never be null
{
for (int i = 0; i < dropDownTypes.Count; i++)
{
var member = (XDropDownMember)dropDownTypes[i];
var type = member.Element as XType;
if (type.FullName == parentType.FullName)
{
selectedType = i;
break;
}
}
}
// normally we should always find it. But if it fails then we simply build the list below.
if (selectedMember != -1 && selectedType != -1)
{
// remember for later. No need to remember the type because it has not changed
_lastSelected = selectedElement;
return(true);
}
}
dropDownTypes.Clear();
dropDownMembers.Clear();
int nSelType = -1;
int nSelMbr = -1;
//int distanceM = int.MaxValue;
DROPDOWNFONTATTR ft;
//
//
if (file.TypeList.Count > 0)
{
nSelType = 0;
}
List <XType> xList = file.TypeList.Values.ToList <XType>();
if (sortItems)
{
xList.Sort(delegate(XType elt1, XType elt2)
{
return(elt1.Name.CompareTo(elt2.Name));
});
}
XType typeGlobal = null;
int nSelect = 0;
XElement currentMember = null;
XType currentType = null;
if (selectedElement is XTypeMember)
{
currentMember = selectedElement as XTypeMember;
currentType = ((XTypeMember)currentMember).Parent;
}
else if (selectedElement is XType)
{
currentType = selectedElement as XType;
currentMember = null;
}
nSelect = 0;
XDropDownMember elt;
// C# shows all items PLAIN
// but when the selection is not really on an item, but for example on a comment
// between methods, or on the comments between the namespace and the first class
// then the next method/class is selected and displayed in GRAY
// C# also includes members (for partial classes) that are defined in other source files
// these are colored GRAY
foreach (XType eltType in xList)
{
if (eltType.Kind == Kind.Namespace)
{
continue;
}
//
if (XType.IsGlobalType(eltType))
{
typeGlobal = eltType;
}
TextSpan sp = this.TextRangeToTextSpan(eltType.Range);
ft = DROPDOWNFONTATTR.FONTATTR_PLAIN;
string name = eltType.Name;
if (string.IsNullOrEmpty(name))
{
name = "?";
}
elt = new XDropDownMember(name, sp, eltType.Glyph, ft);
elt.Element = eltType;
nSelect = dropDownTypes.Add(elt);
if (eltType?.FullName == currentType?.FullName)
{
nSelType = nSelect;
}
}
if (currentType == null)
{
currentType = typeGlobal;
}
bool hasPartial = false;
if (currentType != null) // should not happen since all files have a global type
{
nSelMbr = 0;
var members = new List <XElement>();
if (currentTypeOnly)
{
if (currentType != typeGlobal && currentType.IsPartial)
{
// retrieve members from other files ?
var fullType = file.Project.Lookup(currentType.FullName, true);
hasPartial = true;
members.AddRange(fullType.Members);
}
else
{
members.AddRange(currentType.Members);
}
}
else
{
members.AddRange(file.EntityList.Where(member => includeFields || (member.Kind != Kind.Field && member.Kind != Kind.VODefine)));
foreach (var ent in file.EntityList)
{
if (ent is XType)
{
var xType = ent as XType;
if (xType.IsPartial)
{
// load methods from other files
var fullType = file.Project.Lookup(xType.FullName, true);
hasPartial = true;
foreach (var member in fullType.Members)
{
if (!members.Contains(member))
{
if (includeFields || (member.Kind != Kind.Field && member.Kind != Kind.VODefine))
{
members.Add(member);
}
}
}
}
}
}
}
if (sortItems)
{
members = members.OrderBy(x => x.FullName).ToList();
}
// Add member for class declaration. This also makes sure that there at least one
// element in the members list, which is convenient.
TextSpan spM = this.TextRangeToTextSpan(currentType.Range);
ft = DROPDOWNFONTATTR.FONTATTR_PLAIN;
if (currentTypeOnly)
{
// Add a 'root' element for the type.
if (currentType != typeGlobal)
{
if (currentType.Kind != Kind.Delegate)
{
elt = new XDropDownMember("(" + currentType.Name + ")", spM, currentType.Glyph, ft);
elt.Element = currentType;
dropDownMembers.Add(elt);
}
}
else
{
elt = new XDropDownMember(currentType.Name, spM, currentType.Glyph, ft);
elt.Element = currentType;
dropDownMembers.Add(elt);
}
}
foreach (XElement member in members)
{
bool otherFile;
if (includeFields || (member.Kind != Kind.Field && member.Kind != Kind.VODefine))
{
spM = this.TextRangeToTextSpan(member.Range);
otherFile = false;
ft = DROPDOWNFONTATTR.FONTATTR_PLAIN;
if (hasPartial)
{
otherFile = member.File != file;
}
string prototype = member.ComboPrototype;
if (!currentTypeOnly && member.Parent != null && member.Parent != typeGlobal)
{
if (member.Modifiers.HasFlag(Modifiers.Static))
{
prototype = member.Parent.Name + "." + prototype;
}
else
{
prototype = member.Parent.Name + ":" + prototype;
}
}
if (otherFile)
{
ft = DROPDOWNFONTATTR.FONTATTR_GRAY;
prototype += " (" + System.IO.Path.GetFileName(member.File.SourcePath) + ")";
}
elt = new XDropDownMember(prototype, spM, member.Glyph, ft);
nSelect = dropDownMembers.Add(elt);
elt.Element = member;
if (member == currentMember)
{
nSelMbr = nSelect;
}
}
}
}
// save the info so we can optimize the next call.
_members = dropDownMembers;
_file = file;
_lastSelected = selectedElement;
_lastType = currentType;
_lastHashCode = file.ContentHashCode;
selectedType = nSelType;
selectedMember = nSelMbr;
lastIncludeFields = includeFields;
lastCurrentTypeOnly = currentTypeOnly;
return(true);
}
/// <include file='doc\Source.uex' path='docs/doc[@for="Completor.Completor"]/*' />
public Completor(LanguageService langsvc, IVsTextView view, string description)
{
this.langsvc = langsvc;
this.view = view;
this.src = langsvc.GetSource(view);
this.sb = new StringBuilder();
this.caret = 0; // current position within StringBuilder.
this.ca = CompoundActionFactory.GetCompoundAction(null, this.src, description);
this.ca.FlushEditActions(); // make sure we see a consistent coordinate system.
// initialize span representing what we are removing from the buffer.
NativeMethods.ThrowOnFailure(view.GetCaretPos(out span.iStartLine, out span.iStartIndex));
this.span.iEndLine = span.iStartLine;
this.span.iEndIndex = span.iStartIndex;
RefreshLine();
macro = this.langsvc.GetIVsTextMacroHelperIfRecordingOn();
}