public void Dispatch(object pTarget, uint index, UIAutomationParameter[] pParams, uint cParams)
{
// Parse the provider and parameter list
var provider = (ITestProvider) pTarget;
var paramList = new UiaParameterListHelper(pParams);
var member = TestSchema.GetInstance().GetMemberByIndex(index);
if (member != null)
{
member.DispatchCallToProvider(provider, paramList);
return;
}
// Dispatch the method/property calls
if (index == TestSchema.GetInstance().GetBoolValueMethod.Index)
{
paramList[0] = provider.BoolValue;
}
else if (index == TestSchema.GetInstance().GetDoubleValueMethod.Index)
{
paramList[0] = provider.DoubleValue;
}
else if (index == TestSchema.GetInstance().GetElementValueMethod.Index)
{
paramList[0] = provider.ElementValue;
}
else
{
throw new InvalidOperationException();
}
}
public void DispatchCallToProvider(object provider, UiaParameterListHelper paramList)
{
if (ProviderMethodInfo == null)
{
throw new InvalidOperationException("You need to pass providerMethodInfo if you want to call ISchemaMember.DispatchCallToProvider");
}
if (paramList.Count != PatternMethodParamDescriptions.Count)
{
var message = string.Format("Provided paramList has unexpected number of elements. Expected {0} but was {1}",
PatternMethodParamDescriptions.Count,
paramList.Count);
throw new ArgumentException(message, "paramList");
}
var providerCallParameters = new object[ProviderMethodInfo.GetParameters().Length];
// fill in params
for (int i = 0; i < PatternMethodParamDescriptions.Count; i++)
{
var desc = PatternMethodParamDescriptions[i];
if (UiaTypesHelper.IsInType(desc.UiaType))
{
var providerMethodParamIdx = _providerMethodInfoIndicies[desc.Name];
providerCallParameters[providerMethodParamIdx] = paramList[i];
}
}
// call provider
object result = null;
try
{
result = ProviderMethodInfo.Invoke(provider, providerCallParameters);
}
catch (TargetInvocationException e)
{
if (e.InnerException != null)
{
throw e.InnerException;
}
throw;
}
// write back out params
for (int i = 0; i < PatternMethodParamDescriptions.Count; i++)
{
var desc = PatternMethodParamDescriptions[i];
if (desc.Name == UiaTypesHelper.RetParamUnspeakableName)
{
paramList[i] = result;
continue;
}
if (UiaTypesHelper.IsOutType(desc.UiaType))
{
var providerMethodParamIdx = _providerMethodInfoIndicies[desc.Name];
paramList[i] = providerCallParameters[providerMethodParamIdx];
}
}
}
// Call a pattern instance method with only in-params
protected void CallMethod(UiaMethodInfoHelper methodInfo, params object[] methodParams)
{
// Create and init a parameter list
var paramList = new UiaParameterListHelper(methodInfo);
paramList.Initialize(methodParams);
// Call through
PatternInstance.CallMethod(methodInfo.Index, paramList.Data, paramList.Count);
}
// Call a pattern instance method with only in-params
protected void CallMethod(UiaMethodInfoHelper methodInfo, params object[] methodParams)
{
// Create and init a parameter list
var paramList = new UiaParameterListHelper(methodInfo);
paramList.Initialize(methodParams);
// Call through
PatternInstance.CallMethod(methodInfo.Index, paramList.Data, paramList.Count);
}
// Get a current property value by calling a method, rather than by using GetProperty
protected object GetCurrentPropertyValueViaMethod(UiaMethodInfoHelper methodInfo)
{
// Create and init a parameter list
var paramList = new UiaParameterListHelper(methodInfo);
Debug.Assert(paramList.Count == 1);
// Call through
PatternInstance.CallMethod(methodInfo.Index, paramList.Data, paramList.Count);
// Return the out-parameter
return paramList[0];
}
public void DispatchCallToProvider(object provider, UiaParameterListHelper paramList)
{
if (_getterFromProvider == null)
{
throw new InvalidOperationException("You have to provide getterFromProvider lambda argument to constructor in order to use this method");
}
if (paramList.Count != 1)
{
throw new ArgumentException("For a property param list should contain only one out param");
}
paramList[0] = _getterFromProvider(provider);
}
// Get a current property value by calling a method, rather than by using GetProperty
protected object GetCurrentPropertyValueViaMethod(UiaMethodInfoHelper methodInfo)
{
// Create and init a parameter list
var paramList = new UiaParameterListHelper(methodInfo);
Debug.Assert(paramList.Count == 1);
// Call through
PatternInstance.CallMethod(methodInfo.Index, paramList.Data, paramList.Count);
// Return the out-parameter
return(paramList[0]);
}
private void CallMethod(IInvocation invocation, UiaMethodInfoHelper methodHelper)
{
if (!methodHelper.SupportsDispatch)
{
throw new InvalidOperationException("Called method {0} doesn't support automatic metadata-driven dispatch. You have to modify schema in order to use this feature so that corresponding UiaMethodInfoHelper supports dispatch.");
}
var paramList = new UiaParameterListHelper(methodHelper);
// 1. Fill In params to paramList from invocation arguments
// we're using the fact that In params are always going before out params, so we may just go through 0..(cInParameters-1)
for (int i = 0; i < methodHelper.Data.cInParameters; i++)
{
var desc = methodHelper.PatternMethodParamDescriptions[i];
var idx = methodHelper.GetProviderMethodArgumentIndex(desc.Name);
paramList[i] = invocation.Arguments[idx];
}
// 2. Call patternInstance method
NativeMethods.WrapUiaComCall(() => _patternInstance.CallMethod(methodHelper.Index, paramList.Data, paramList.Count));
// 3. Fill Out params back to invocation from paramList
for (int i = (int)methodHelper.Data.cInParameters; i < methodHelper.Data.cInParameters + methodHelper.Data.cOutParameters; i++)
{
object value = paramList[i];
var desc = methodHelper.PatternMethodParamDescriptions[i];
if (desc.Name == UiaTypesHelper.RetParamUnspeakableName)
{
if (invocation.Method.ReturnType == typeof(AutomationElement))
{
value = AutomationElement.Wrap((IUIAutomationElement)value);
}
invocation.ReturnValue = value;
}
else
{
var idx = methodHelper.GetProviderMethodArgumentIndex(desc.Name);
if (invocation.Method.GetParameters()[idx].ParameterType.GetElementType() == typeof(AutomationElement))
{
value = AutomationElement.Wrap((IUIAutomationElement)value);
}
invocation.Arguments[idx] = value;
}
}
}
public void Dispatch(object pTarget, uint index, UIAutomationParameter[] pParams, uint cParams)
{
// Parse the provider and parameter list
var provider = (IColorProvider) pTarget;
var paramList = new UiaParameterListHelper(pParams);
// Dispatch the method/property calls
if (index == ColorSchema.GetInstance().ValueAsColorProperty.Index)
{
paramList[0] = provider.ValueAsColor;
}
else if (index == ColorSchema.GetInstance().SetValueAsColorMethod.Index)
{
provider.SetValueAsColor((int) paramList[0]);
}
else
{
throw new InvalidOperationException();
}
}
private void CallMethod(IInvocation invocation, UiaMethodInfoHelper methodHelper)
{
if (!methodHelper.SupportsDispatch)
throw new InvalidOperationException("Called method {0} doesn't support automatic metadata-driven dispatch. You have to modify schema in order to use this feature so that corresponding UiaMethodInfoHelper supports dispatch.");
var paramList = new UiaParameterListHelper(methodHelper);
// 1. Fill In params to paramList from invocation arguments
// we're using the fact that In params are always going before out params, so we may just go through 0..(cInParameters-1)
for (int i = 0; i < methodHelper.Data.cInParameters; i++)
{
var desc = methodHelper.PatternMethodParamDescriptions[i];
var idx = methodHelper.GetProviderMethodArgumentIndex(desc.Name);
paramList[i] = invocation.Arguments[idx];
}
// 2. Call patternInstance method
NativeMethods.WrapUiaComCall(() => _patternInstance.CallMethod(methodHelper.Index, paramList.Data, paramList.Count));
// 3. Fill Out params back to invocation from paramList
for (int i = (int)methodHelper.Data.cInParameters; i < methodHelper.Data.cInParameters + methodHelper.Data.cOutParameters; i++)
{
object value = paramList[i];
var desc = methodHelper.PatternMethodParamDescriptions[i];
if (desc.Name == UiaTypesHelper.RetParamUnspeakableName)
{
if (invocation.Method.ReturnType == typeof(AutomationElement))
value = AutomationElement.Wrap((IUIAutomationElement)value);
invocation.ReturnValue = value;
}
else
{
var idx = methodHelper.GetProviderMethodArgumentIndex(desc.Name);
if (invocation.Method.GetParameters()[idx].ParameterType.GetElementType() == typeof(AutomationElement))
value = AutomationElement.Wrap((IUIAutomationElement)value);
invocation.Arguments[idx] = value;
}
}
}
// Call a pattern instance method with this parameter list
protected void CallMethod(UiaMethodInfoHelper methodInfo, UiaParameterListHelper paramList)
{
PatternInstance.CallMethod(methodInfo.Index, paramList.Data, paramList.Count);
}
public void DispatchCallToProvider(object provider, UiaParameterListHelper paramList)
{
if (_getterFromProvider == null)
throw new InvalidOperationException("You have to provide getterFromProvider lambda argument to constructor in order to use this method");
if (paramList.Count != 1)
throw new ArgumentException("For a property param list should contain only one out param");
paramList[0] = _getterFromProvider(provider);
}
// Call a pattern instance method with this parameter list
protected void CallMethod(UiaMethodInfoHelper methodInfo, UiaParameterListHelper paramList)
{
PatternInstance.CallMethod(methodInfo.Index, paramList.Data, paramList.Count);
}
public void PassStringParam(string value, out string retVal)
{
// Create and init a parameter list
// We can't just use the CallMethod helper because we have out-parameters
var paramList = new UiaParameterListHelper(TestSchema.GetInstance().PassStringParamMethod);
paramList[0] = value;
// Call through
PatternInstance.CallMethod(TestSchema.GetInstance().PassStringParamMethod.Index, paramList.Data, paramList.Count);
// Get the out-parameter
retVal = (string) paramList[1];
}
public void DispatchCallToProvider(object provider, UiaParameterListHelper paramList)
{
if (ProviderMethodInfo == null)
throw new InvalidOperationException("You need to pass providerMethodInfo if you want to call ISchemaMember.DispatchCallToProvider");
if (paramList.Count != PatternMethodParamDescriptions.Count)
{
var message = string.Format("Provided paramList has unexpected number of elements. Expected {0} but was {1}",
PatternMethodParamDescriptions.Count,
paramList.Count);
throw new ArgumentException(message, "paramList");
}
var providerCallParameters = new object[ProviderMethodInfo.GetParameters().Length];
// fill in params
for (int i = 0; i < PatternMethodParamDescriptions.Count; i++)
{
var desc = PatternMethodParamDescriptions[i];
if (UiaTypesHelper.IsInType(desc.UiaType))
{
var providerMethodParamIdx = _providerMethodInfoIndicies[desc.Name];
providerCallParameters[providerMethodParamIdx] = paramList[i];
}
}
// call provider
object result = null;
try
{
result = ProviderMethodInfo.Invoke(provider, providerCallParameters);
}
catch (TargetInvocationException e)
{
if (e.InnerException != null)
throw e.InnerException;
throw;
}
// write back out params
for (int i = 0; i < PatternMethodParamDescriptions.Count; i++)
{
var desc = PatternMethodParamDescriptions[i];
if (desc.Name == UiaTypesHelper.RetParamUnspeakableName)
{
paramList[i] = result;
continue;
}
if (UiaTypesHelper.IsOutType(desc.UiaType))
{
var providerMethodParamIdx = _providerMethodInfoIndicies[desc.Name];
paramList[i] = providerCallParameters[providerMethodParamIdx];
}
}
}