private static string ConvertToDuration(string source, string destinationType)
{
string stringValue = source.Trim();
if (stringValue.Equals("Automatic", StringComparison.OrdinalIgnoreCase))
{
return($"{destinationType}.Automatic");
}
else if (stringValue.Equals("Forever", StringComparison.OrdinalIgnoreCase))
{
return($"{destinationType}.Forever");
}
else
{
return(SystemTypesHelper.ConvertFromInvariantString(stringValue, "system.timespan"));
}
}
private static string ConvertToRepeatBehavior(string source, string destinationType)
{
const char _iterationCharacter = 'x';
string stringValue = source.Trim().ToLowerInvariant();
if (stringValue == "forever")
{
return(string.Format($"{destinationType}.Forever"));
}
else if (stringValue.Length > 0 &&
stringValue[stringValue.Length - 1] == _iterationCharacter)
{
string stringDoubleValue = stringValue.TrimEnd(_iterationCharacter);
return($"new {destinationType}({stringDoubleValue.TrimEnd()})");
}
return(SystemTypesHelper.ConvertFromInvariantString(stringValue, "system.timespan"));
}
private static string ConvertToKeyTime(string source, string destinationType)
{
string stringValue = source.Trim();
if (stringValue == "Uniform" || stringValue == "Paced")
{
throw new wpf::System.Windows.Markup.XamlParseException(
$"The '{destinationType}.{stringValue}' property is not supported yet."
);
}
else if (stringValue.Length > 0 &&
stringValue[stringValue.Length - 1] == '%')
{
throw new wpf::System.Windows.Markup.XamlParseException(
$"Percentage values for '{destinationType}' are not supported yet."
);
}
else
{
return(SystemTypesHelper.ConvertFromInvariantString(stringValue, "system.timespan"));
}
}
static void TraverseNextElement(XElement currentElement, int currentElementIndex, /*Stack<Dictionary<int, int>> indexesMapper*/ Stack <List <int> > indexesMapper, ReflectionOnSeparateAppDomainHandler reflectionOnSeparateAppDomain)
{
bool skipTraversalOfChildren = false;
// Copy the children into a new array so that if we remove items from the collection, it does not affect the traversal:
XElement[] children = currentElement.Elements().ToArray();
// Check if the current element is an object (rather than a property):
bool isElementAnObjectRatherThanAProperty = !currentElement.Name.LocalName.Contains(".");
List <int> indexesMap = new List <int>(children.Length);
if (isElementAnObjectRatherThanAProperty)
{
//----------------------------------
// CASE: OBJECT (e.g. <Button> or <TextBlock>)
//----------------------------------
// Make a list of all the child nodes that are not part of a property of the current element (e.g. if the current element is a Border that contains a Button, we detect "<Button>" but we ignore "<Border.Child>" and "<ToolTipService.ToolTip>" because they are properties):
List <XElement> nodesThatAreNotPropertiesOfTheObject = new List <XElement>();
XElement child;
for (int i = 0; i < children.Length; i++)
{
child = children[i];
if (!child.Name.LocalName.Contains("."))
{
nodesThatAreNotPropertiesOfTheObject.Add(child);
indexesMap.Add(i);
}
}
//-------------------------------------------------------------
// Explicitly add the "ContentProperty" to the XAML. For example, <Border><TextBlock/></Border> becomes <Border><Border.Child><TextBlock/></Border.Child></Border>
//-------------------------------------------------------------
// If that list is not empty, put those child elements into a group, which name is the default children property (aka "ContentProperty") of the parent:
if (nodesThatAreNotPropertiesOfTheObject.Count > 0)
{
// Find out the name of the default children property (aka "ContentProperty") of the current element:
string namespaceName, localName, assemblyNameIfAny;
GettingInformationAboutXamlTypes.GetClrNamespaceAndLocalName(currentElement.Name, out namespaceName, out localName, out assemblyNameIfAny);
var contentPropertyName = reflectionOnSeparateAppDomain.GetContentPropertyName(namespaceName, localName, assemblyNameIfAny);
XElement contentWrapper;
if (contentPropertyName != null)
{
// Wrap the child elements:
contentWrapper = new XElement(currentElement.Name + "." + contentPropertyName);
}
else
{
contentWrapper = currentElement;
}
foreach (var childElement in nodesThatAreNotPropertiesOfTheObject)
{
childElement.Remove();
}
contentWrapper.Add(nodesThatAreNotPropertiesOfTheObject.ToArray <object>());
if (contentWrapper != currentElement)
{
currentElement.Add(contentWrapper);
}
}
//-------------------------------------------------------------
// If there is some direct text content (such as <Button>content</Button), convert the text into an attribute (such as <Button Content="content"></Button>) if the element has the "[ContentProperty]" attribute.
// Note: if the type is a system type (such as <sys:Double>50</sys:Double>), we ignore it because later its value will be directly assigned.
// Similarly, if the type has the "[SupportsDirectContentViaTypeFromStringConvertersAttribute]" attribute or is an Enum, we also ignore it because later it will be transformed into a call to the "TypeFromStringConverters" class.
//-------------------------------------------------------------
XText directTextContent;
if (DoesElementContainDirectTextContent(currentElement, out directTextContent))
{
// Read the content:
string contentValue = directTextContent.Value;
// Get information about the element namespace and assembly:
string namespaceName, localName, assemblyNameIfAny;
GettingInformationAboutXamlTypes.GetClrNamespaceAndLocalName(currentElement.Name, out namespaceName, out localName, out assemblyNameIfAny);
// Distinguish system types (string, double, etc.) to other types:
if (SystemTypesHelper.IsSupportedSystemType(namespaceName, localName, assemblyNameIfAny))
{
// In this case we do nothing because system types are handled later in the process. Example: "<sys:Double>50</sys:Double>" becomes: "Double x = 50;"
}
else
{
// Ensure the content is not empty:
if (!string.IsNullOrWhiteSpace(contentValue)) //todo: do we really need this?
{
List <int> siblings = indexesMapper.Peek();
//If it is the first child, we want to trim the start of the string. (Silverlight behavior)
if (currentElementIndex == siblings[0]) //at least of size 1 (it contains currentElement)
{
contentValue = contentValue.TrimStart();
}
//If it is the last child, we want to trim the end of the string. (Silverlight behavior)
if (currentElementIndex == siblings[siblings.Count - 1])
{
contentValue = contentValue.TrimEnd();
}
// Replace multiple spaces (and line returns) with just one space (same behavior as in WPF): //cf. http://stackoverflow.com/questions/1279859/how-to-replace-multiple-white-spaces-with-one-white-space
contentValue = Regex.Replace(contentValue, @"\s{2,}", " ");
// Check if the type has the "[SupportsDirectContentViaTypeFromStringConvertersAttribute]" attribute (such as "<Color>Red</Color>")
// or it is an Enum (such as "<Visibility>Collapsed</Visibility>"):
if (reflectionOnSeparateAppDomain.DoesTypeContainAttributeToConvertDirectContent(namespaceName, localName, assemblyNameIfAny) ||
reflectionOnSeparateAppDomain.IsTypeAnEnum(namespaceName, localName, assemblyNameIfAny))
{
// Add the attribute that will tell the compiler to later intialize the type by converting from the string using the "TypeFromStringConverters" class.
currentElement.SetAttributeValue(AttributeNameForTypesToBeInitializedFromString, contentValue);
// Remove the direct text content:
directTextContent.Remove();
}
else
{
// Find out the name of the default children property (aka "ContentProperty") of the current element:
var contentPropertyName = reflectionOnSeparateAppDomain.GetContentPropertyName(namespaceName, localName, assemblyNameIfAny);
// Verify that the default children property (aka "ContentProperty") was found:
if (string.IsNullOrEmpty(contentPropertyName))
{
throw new wpf::System.Windows.Markup.XamlParseException(string.Format("The element '{0}' does not support direct content.", currentElement.Name));
}
// Verify that the attribute is not already set:
if (currentElement.Attribute(contentPropertyName) != null)
{
throw new wpf::System.Windows.Markup.XamlParseException(string.Format("The property '{0}' is set more than once.", contentPropertyName));
}
// SPECIAL CASE: If we are in a TextBlock, we want to set the property "TextBlock.Text" instead of "TextBlock.Inlines":
if (currentElement.Name == GeneratingCSharpCode.DefaultXamlNamespace + "TextBlock" ||
currentElement.Name == GeneratingCSharpCode.DefaultXamlNamespace + "Run")
{
contentPropertyName = "Text";
}
// Add the Content attribute:
XAttribute attribute = new XAttribute(contentPropertyName, contentValue);
currentElement.Add(attribute);
// Remove the direct text content:
directTextContent.Remove();
}
}
}
}
}
else
{
//----------------------------------
// CASE: PROPERTY (e.g. <Button.Visibility> or <TextBlock.Text> or <ToolTipService.ToolTip>)
//----------------------------------
// If there is some direct text content (such as <Button.Visibility>Collapsed</Button.Visibility> or <ToolTipService.ToolTip>Test</ToolTipService.ToolTip>), we convert the text into an attribute (such as <Button Visibility="Collapsed"></Button> or <Button ToolTipService.ToolTip="Test></Button>):
XText directTextContent;
if (DoesElementContainDirectTextContent(currentElement, out directTextContent))
{
// Check if we are on a direct object property (such as <Button.Visibility>) or an attached property (such as <ToolTipService.ToolTip>). For example, if the current element is <TextBlock.Text> and the parent is <TextBlock>, the result is true. Conversely, if the current element is <ToolTipService.ToolTip> and the parent is <Border>, the result is false.
bool isAttachedProperty = currentElement.Parent.Name != (currentElement.Name.Namespace + currentElement.Name.LocalName.Substring(0, currentElement.Name.LocalName.IndexOf(".")));
// Read the content:
string contentValue = directTextContent.Value;
// Get the property name:
string contentPropertyName = isAttachedProperty ? currentElement.Name.LocalName : currentElement.Name.LocalName.Substring(currentElement.Name.LocalName.IndexOf(".") + 1);
// Replace multiple spaces (and line returns) with just one space (same behavior as in WPF): //cf. http://stackoverflow.com/questions/1279859/how-to-replace-multiple-white-spaces-with-one-white-space
contentValue = Regex.Replace(contentValue, @"\s{2,}", " ").Trim();
if (!string.IsNullOrEmpty(contentValue))
{
contentValue = contentValue[0] == '{' ? "{}" + contentValue : contentValue;
}
// Verify that the attribute is not already set:
if (currentElement.Attribute(contentPropertyName) != null)
{
throw new wpf::System.Windows.Markup.XamlParseException(string.Format("The property '{0}' is set more than once.", contentPropertyName));
}
// Add the attribute:
XAttribute attribute = new XAttribute(contentPropertyName, contentValue);
currentElement.Parent.Add(attribute);
// Remove the element:
currentElement.Remove();
// It's useless to traverse the children because we have removed the element:
skipTraversalOfChildren = true;
}
else
{
XElement child;
for (int i = 0; i < children.Length; i++)
{
child = children[i];
if (!child.Name.LocalName.Contains("."))
{
indexesMap.Add(i);
}
}
}
}
// Recursion:
if (!skipTraversalOfChildren)
{
indexesMapper.Push(indexesMap);
int i = 0;
foreach (var childElements in children)
{
TraverseNextElement(childElements, i, indexesMapper, reflectionOnSeparateAppDomain);
++i;
}
indexesMapper.Pop();
}
}
