public string CompileBinding(string expression, Type[] contexts, Type expectedType)
{
var configuration = DotvvmTestHelper.CreateConfiguration();
configuration.RegisterApiClient(typeof(TestApiClient), "http://server/api", "./apiscript.js", "_api");
configuration.Markup.ImportedNamespaces.Add(new NamespaceImport("DotVVM.Framework.Tests.Binding"));
var context = DataContextStack.Create(contexts.FirstOrDefault() ?? typeof(object), extensionParameters: new BindingExtensionParameter[] {
new BindingPageInfoExtensionParameter(),
}.Concat(configuration.Markup.DefaultExtensionParameters).ToArray());
for (int i = 1; i < contexts.Length; i++)
{
context = DataContextStack.Create(contexts[i], context);
}
var parser = new BindingExpressionBuilder();
var expressionTree = parser.ParseWithLambdaConversion(expression, context, BindingParserOptions.Create <ValueBindingExpression>(), expectedType);
var jsExpression =
configuration.ServiceProvider.GetRequiredService <StaticCommandBindingCompiler>().CompileToJavascript(context, expressionTree);
return(KnockoutHelper.GenerateClientPostBackScript(
"",
new FakeCommandBinding(BindingPropertyResolvers.FormatJavascript(jsExpression, nullChecks: false), null),
new Literal(),
new PostbackScriptOptions(
allowPostbackHandlers: false,
returnValue: null,
commandArgs: CodeParameterAssignment.FromIdentifier("commandArguments")
)));
}
protected void ParseParameter()
{
XPathNavigator nav = this.Navigator;
string nameValue = nav.GetAttribute("name", "");
if (this.Parameters.Contains(nameValue)) {
return;
}
PageParameterInfo paramInfo = null;
if (nav.MoveToAttribute("bind", WebModule.Namespace)) {
var exprBuilderContext = new BindingExpressionContext(this, nav.Clone());
BindingExpressionInfo exprInfo = null;
try {
exprInfo = BindingExpressionBuilder.ParseExpr(nav.Value, exprBuilderContext);
} catch (Exception ex) {
throw CreateParseException(ex.Message);
}
if (exprInfo != null) {
exprInfo.LineNumber = ((IXmlLineInfo)nav).LineNumber;
}
nav.MoveToParent();
IDictionary<string, string> namespacesInScope = nav.GetNamespacesInScope(XmlNamespaceScope.All);
bool hasDefaultValue = !String.IsNullOrEmpty(nav.GetAttribute("select", ""));
string asValue = nav.GetAttribute("as", "");
bool required = nav.GetAttribute("required", "") == "yes";
paramInfo = PageParameterInfo.FromSequenceType(nameValue, asValue, namespacesInScope);
if (hasDefaultValue) {
if (paramInfo.MinLength > 0) {
paramInfo.MinLength = 0;
}
} else if (required) {
if (paramInfo.MinLength == 0) {
paramInfo.MinLength = 1;
}
}
paramInfo.Binding = exprInfo;
}
if (paramInfo != null) {
this.Parameters.Add(paramInfo);
}
}
public string CompileBinding(string expression, Type[] contexts, Type expectedType)
{
var context = new DataContextStack(contexts.FirstOrDefault() ?? typeof(object), rootControlType: typeof(DotvvmControl));
for (int i = 1; i < contexts.Length; i++)
{
context = new DataContextStack(contexts[i], context);
}
var parser = new BindingExpressionBuilder();
var expressionTree = TypeConversion.ImplicitConversion(parser.Parse(expression, context, BindingParserOptions.Create <ValueBindingExpression>()), expectedType, true, true);
return(JavascriptTranslator.CompileToJavascript(expressionTree, context));
}
public object ExecuteBinding(string expression, object[] contexts, DotvvmControl control, NamespaceImport[] imports = null, Type expectedType = null)
{
var context = new DataContextStack(contexts.FirstOrDefault()?.GetType() ?? typeof(object), rootControlType: control?.GetType() ?? typeof(DotvvmControl));
for (int i = 1; i < contexts.Length; i++)
{
context = new DataContextStack(contexts[i].GetType(), context);
}
var parser = new BindingExpressionBuilder();
var expressionTree = parser.Parse(expression, context, BindingParserOptions.Create <ValueBindingExpression>(importNs: new[] { new NamespaceImport("DotVVM.Framework.Tests.Binding") }.Concat(imports ?? Enumerable.Empty <NamespaceImport>()).ToArray()));
Array.Reverse(contexts);
return(new BindingCompilationAttribute().CompileToDelegate(expressionTree, context, expectedType ?? typeof(object)).Compile()(contexts, control));
}
public string CompileBinding(Func<Dictionary<string, Expression>, Expression> expr, Type[] contexts)
{
var context = DataContextStack.Create(contexts.FirstOrDefault() ?? typeof(object), extensionParameters: new BindingExtensionParameter[]{
new BindingPageInfoExtensionParameter()
});
for (int i = 1; i < contexts.Length; i++)
{
context = DataContextStack.Create(contexts[i], context);
}
var expressionTree = expr(BindingExpressionBuilder.GetParameters(context).ToDictionary(e => e.Name, e => (Expression)e));
var configuration = DotvvmTestHelper.CreateConfiguration();
var jsExpression = new JsParenthesizedExpression(configuration.ServiceProvider.GetRequiredService<JavascriptTranslator>().CompileToJavascript(expressionTree, context));
jsExpression.AcceptVisitor(new KnockoutObservableHandlingVisitor(true));
JsTemporaryVariableResolver.ResolveVariables(jsExpression);
return JavascriptTranslator.FormatKnockoutScript(jsExpression.Expression);
}
public string CompileBinding(string expression, Type[] contexts, Type expectedType)
{
var context = DataContextStack.Create(contexts.FirstOrDefault() ?? typeof(object), extensionParameters: new BindingExtensionParameter[] {
new BindingPageInfoExtensionParameter(),
}.Concat(configuration.Markup.DefaultExtensionParameters).ToArray());
for (int i = 1; i < contexts.Length; i++)
{
context = DataContextStack.Create(contexts[i], context);
}
var parser = new BindingExpressionBuilder();
var expressionTree = TypeConversion.ImplicitConversion(parser.Parse(expression, context, BindingParserOptions.Create <ValueBindingExpression>()), expectedType, true, true);
var jsExpression = new JsParenthesizedExpression(configuration.ServiceProvider.GetRequiredService <JavascriptTranslator>().CompileToJavascript(expressionTree, context));
jsExpression.AcceptVisitor(new KnockoutObservableHandlingVisitor(true));
JsTemporaryVariableResolver.ResolveVariables(jsExpression);
return(JavascriptTranslator.FormatKnockoutScript(jsExpression.Expression));
}
protected void ParsePagePI()
{
XPathNavigator nav = this.Navigator;
IDictionary<string, string> attribs = GetAttributes(nav.Value);
// language
string language = GetNonEmptyNoWhitespaceAttribute(attribs, page.language);
if (language != null) {
this.Language = language;
}
// class-name
string className = GetFullClassNameAttribute(attribs, page.class_name);
if (!String.IsNullOrEmpty(className)) {
this.GeneratedTypeFullName = className;
}
// content-type
string contentType = GetNonEmptyAttribute(attribs, page.content_type);
if (contentType != null) {
this.ContentType = contentType;
}
// enable-session-state
object enableSs = GetEnumAttribute(attribs, page.enable_session_state, typeof(PagesEnableSessionState));
if (enableSs != null) {
this.EnableSessionState = (PagesEnableSessionState)enableSs;
}
// validate-request
bool valReq = default(bool);
if (GetBooleanAttribute(attribs, page.validate_request, ref valReq)) {
this.ValidateRequest = valReq;
}
// accept-verbs
string acceptVerbs = GetNonEmptyAttribute(attribs, page.accept_verbs);
if (acceptVerbs != null) {
string[] verbs = acceptVerbs.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
for (int i = 0; i < verbs.Length; i++) {
this.AcceptVerbs.Add(verbs[i].Trim());
}
}
// XSLT related attributes
XPathNavigator nav2 = nav.CreateNavigator();
nav2.MoveToRoot();
nav2.MoveToChild(XPathNodeType.Element);
IDictionary<string, string> namespacesInScope = nav2.GetNamespacesInScope(XmlNamespaceScope.All);
// initial-template
string initialTempl = GetNonEmptyAttribute(attribs, page.initial_template);
if (initialTempl != null) {
if (this.PageType != XsltPageType.StandardStylesheet) {
throw CreateParseException("The '{0}' attribute can only be used on standard XSLT pages.", page.initial_template);
}
string itLocal = initialTempl;
string itNamespace = "";
if (initialTempl.Contains(":")) {
string[] itParts = initialTempl.Split(':');
itLocal = itParts[1];
string itPrefix = itParts[0];
if (namespacesInScope.ContainsKey(itPrefix)) {
itNamespace = namespacesInScope[itPrefix];
}
}
this.InitialTemplate = new XmlQualifiedName(itLocal, itNamespace);
}
// initial-template-binding
string initialTemplBind = GetNonEmptyAttribute(attribs, page.bind_initial_template);
if (initialTemplBind != null) {
if (this.PageType != XsltPageType.StandardStylesheet) {
throw CreateParseException("The '{0}' attribute can only be used on standard XSLT pages.", page.bind_initial_template);
}
var exprBuilderContext = new BindingExpressionContext(this, nav.Clone(), namespacesInScope) {
NodeName = page.bind_initial_template,
AffectsXsltInitiation = true
};
try {
this.InitialTemplateBinding = BindingExpressionBuilder.ParseExpr(initialTemplBind, exprBuilderContext);
} catch (Exception ex) {
throw CreateParseException(ex.Message);
}
if (this.InitialTemplateBinding != null) {
this.InitialTemplateBinding.LineNumber = ((IXmlLineInfo)nav).LineNumber;
}
}
// processor
string processor = GetNonEmptyAttribute(attribs, page.processor);
if (processor != null) {
if (!Processors.Xslt.Exists(processor)) {
throw CreateParseException("The processor '{0}' is not registered.", processor);
}
this.ProcessorName = processor;
}
}
