public TriColorProvider(TriColorControl control)
{
_control = control;
// Populate static properties
//
AddStaticProperty(UIA_PropertyIds.UIA_ControlTypePropertyId, UIA_ControlTypeIds.UIA_CustomControlTypeId);
AddStaticProperty(UIA_PropertyIds.UIA_LocalizedControlTypePropertyId, "tri-color picker");
AddStaticProperty(UIA_PropertyIds.UIA_ProviderDescriptionPropertyId, "UIASamples: Tri-Color Provider");
AddStaticProperty(UIA_PropertyIds.UIA_HelpTextPropertyId,
"This is a color picker for a choice of three colors. Use Up and Down arrows to move the selection between the colors.");
// The WinForm name for this control makes a good Automation ID.
AddStaticProperty(UIA_PropertyIds.UIA_AutomationIdPropertyId, _control.Name);
AddStaticProperty(UIA_PropertyIds.UIA_IsKeyboardFocusablePropertyId, true);
AddStaticProperty(UIA_PropertyIds.UIA_IsControlElementPropertyId, true);
AddStaticProperty(UIA_PropertyIds.UIA_IsContentElementPropertyId, true);
// Some properties are provided for me already by HWND provider
// NativeWindowHandle, ProcessId, FrameworkId, IsEnabled, HasKeyboardFocus
// Register for custom property
ReadyStateSchema.GetInstance().Register();
// Register for custom pattern
ColorSchema.GetInstance().Register();
// TEST: Register for test schema
TestSchema.GetInstance().Register();
}
public override object GetPatternProvider(int patternId)
{
// We just respond with ourself for the patterns we support.
if (patternId == UIA_PatternIds.UIA_ValuePatternId ||
patternId == UIA_PatternIds.UIA_SelectionPatternId ||
patternId == ColorSchema.GetInstance().PatternId)
{
return(this);
}
// TEST: Respond with a test schema object on request
if (patternId == TestSchema.GetInstance().PatternId)
{
return(new TestPatternProvider(this));
}
return(base.GetPatternProvider(patternId));
}
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();
}
}
public void SetValueAsColor(int value)
{
CallMethod(ColorSchema.GetInstance().SetValueAsColorMethod, value);
}
