/// <summary>
/// Called to check if ContextAction is available.
/// ReadLock is taken
/// Will not be called if <c>PsiManager</c>, ProjectFile of Solution == null
/// </summary>
/// <param name="element">
/// The element.
/// </param>
/// <returns>
/// The is available.
/// </returns>
protected override bool IsAvailable(IElement element)
{
this.name = null;
var localVariableDeclaration = this.Provider.GetSelectedElement<ILocalVariableDeclaration>(true, true);
var assignmentExpression = this.Provider.GetSelectedElement<IAssignmentExpression>(true, true);
if (assignmentExpression == null && localVariableDeclaration == null)
{
return false;
}
global::JetBrains.Util.TextRange range;
IType declaredType;
if (assignmentExpression != null)
{
var destination = assignmentExpression.Dest;
if (destination == null)
{
return false;
}
if (!destination.IsClassifiedAsVariable)
{
return false;
}
declaredType = destination.GetExpressionType() as IDeclaredType;
var referenceExpression = destination as IReferenceExpression;
if (referenceExpression == null)
{
return false;
}
var reference = referenceExpression.Reference;
var source = assignmentExpression.Source;
if (source == null)
{
return false;
}
this.name = reference.GetName();
range = new global::JetBrains.Util.TextRange(destination.GetTreeStartOffset().Offset, source.GetTreeStartOffset().Offset);
}
else
{
var localVariable = localVariableDeclaration.DeclaredElement as ILocalVariable;
if (localVariable == null)
{
return false;
}
declaredType = localVariable.Type;
var declNode = localVariableDeclaration.ToTreeNode();
if (declNode.AssignmentSign == null)
{
return false;
}
this.name = localVariable.ShortName;
IIdentifierNode identifier = declNode.NameIdentifier;
if (identifier == null)
{
return false;
}
var initial = localVariableDeclaration.Initial;
if (initial == null)
{
return false;
}
range = new global::JetBrains.Util.TextRange(identifier.GetTreeStartOffset().Offset, initial.GetTreeStartOffset().Offset);
}
if (declaredType == null)
{
return false;
}
if (!declaredType.IsReferenceType())
{
return false;
}
return range.IsValid() && range.Contains(this.Provider.CaretOffset.Offset);
}
/// <summary>
/// Gets the name of the template.
/// </summary>
/// <param name="parameters">
/// The parameters.
/// </param>
/// <returns>
/// The items.
/// </returns>
IEnumerable<LiveTemplateItem> ILiveTemplate.GetItems(SmartGenerateParameters parameters)
{
var element = parameters.Element;
var result = new List<LiveTemplateItem>();
var hasString = false;
var hasInt = false;
var hasBool = false;
var expression = element.GetContainingElement(typeof(IExpression), false) as IExpression;
while (expression != null)
{
var type = expression.Type();
var typeName = type.GetPresentableName(element.Language);
var treeTextRange = expression.GetTreeTextRange();
var textRange = new global::JetBrains.Util.TextRange(treeTextRange.StartOffset.Offset, treeTextRange.EndOffset.Offset);
if (typeName == "string" && !hasString)
{
result.Add(new LiveTemplateItem
{
MenuText = "Surround string expression",
Description = "Surround string expression",
Shortcut = "Surround string expression",
Range = textRange
});
hasString = true;
}
if (typeName == "int" && !hasInt)
{
result.Add(new LiveTemplateItem
{
MenuText = "Surround integer expression",
Description = "Surround integer expression",
Shortcut = "Surround integer expression",
Range = textRange
});
hasInt = true;
}
if (typeName == "bool" && !hasBool)
{
result.Add(new LiveTemplateItem
{
MenuText = "Surround boolean expression",
Description = "Surround boolean expression",
Shortcut = "Surround boolean expression",
Range = textRange
});
hasBool = true;
}
expression = expression.GetContainingElement(typeof(IExpression), false) as IExpression;
}
return result;
}
