void SwizzleNSApplicationAccessibilitySetter()
{
// Swizzle accessibilitySetValue:forAttribute: so that we can detect when VoiceOver gets enabled
var nsApplicationClassHandle = Class.GetHandle("NSApplication");
// This happens if GtkMac is loaded before XamMac
if (nsApplicationClassHandle == IntPtr.Zero)
{
return;
}
var accessibilitySetValueForAttributeSelector = Selector.GetHandle("accessibilitySetValue:forAttribute:");
var accessibilitySetValueForAttributeMethod = class_getInstanceMethod(nsApplicationClassHandle, accessibilitySetValueForAttributeSelector);
originalAccessibilitySetValueForAttributeMethod = method_getImplementation(accessibilitySetValueForAttributeMethod);
var block = new BlockLiteral();
SwizzledAccessibilitySetValueForAttributeDelegate d = accessibilitySetValueForAttribute;
block.SetupBlock(d, null);
var imp = imp_implementationWithBlock(ref block);
method_setImplementation(accessibilitySetValueForAttributeMethod, imp);
accessibilityInUse = CFPreferences.GetAppBooleanValue("voiceOverOnOffKey", "com.apple.universalaccess");
a11yHelperInitialized = true;
}
void SwizzleNSApplication()
{
// Swizzle accessibilitySetValue:forAttribute: so that we can detect when VoiceOver gets enabled
var nsApplicationClassHandle = Class.GetHandle("NSApplication");
var accessibilitySetValueForAttributeSelector = Selector.GetHandle("accessibilitySetValue:forAttribute:");
var accessibilitySetValueForAttributeMethod = class_getInstanceMethod(nsApplicationClassHandle, accessibilitySetValueForAttributeSelector);
originalAccessibilitySetValueForAttributeMethod = method_getImplementation(accessibilitySetValueForAttributeMethod);
var block = new BlockLiteral();
SwizzledAccessibilitySetValueForAttributeDelegate d = accessibilitySetValueForAttribute;
block.SetupBlock(d, null);
var imp = imp_implementationWithBlock(ref block);
method_setImplementation(accessibilitySetValueForAttributeMethod, imp);
}
