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;
}
public void PlaySoundEffect(SoundEffect effect, EffectMode mode)
{
if (mode == EffectMode.Off || effect == SoundEffect.None)
{
return;
}
if (mode == EffectMode.Default && Forms9Patch.Settings.SoundEffectMode != EffectMode.On)
{
if (Forms9Patch.Settings.SoundEffectMode == EffectMode.Default)
{
// this no longer works and there doesn't appear to be a way to detect if keyclicks is on
//var type = CFPreferences.CurrentApplication;
CFPreferences.AppSynchronize("/var/mobile/Library/Preferences/com.apple.preferences.sounds");
if (!CFPreferences.GetAppBooleanValue("keyboard", "/var/mobile/Library/Preferences/com.apple.preferences.sounds"))
{
return;
}
}
else // Forms9Patch.Settings.SoundEffectMode == EffectMode.Off
{
return;
}
}
switch (effect)
{
case SoundEffect.KeyClick:
click.PlaySystemSound();
break;
case SoundEffect.Return:
modifier.PlaySystemSound();
break;
case SoundEffect.Delete:
delete.PlaySystemSound();
break;
}
}
/// <summary>
/// Feedback the specified effect and mode.
/// </summary>
/// <param name="effect">Effect.</param>
/// <param name="mode">Mode.</param>
public void Feedback(HapticEffect effect, KeyClicks mode = KeyClicks.Default)
{
var soundEnabled = (mode & KeyClicks.On) > 0;
if (mode == KeyClicks.Default)
{
soundEnabled = (Forms9Patch.Settings.KeyClicks & KeyClicks.On) > 0;
if (Forms9Patch.Settings.KeyClicks == KeyClicks.Default)
{
// this no longer works and there doesn't appear to be a way to detect if keyclicks is on
//var type = CFPreferences.CurrentApplication;
CFPreferences.AppSynchronize("/var/mobile/Library/Preferences/com.apple.preferences.sounds");
soundEnabled = CFPreferences.GetAppBooleanValue("keyboard", "/var/mobile/Library/Preferences/com.apple.preferences.sounds");
}
}
if (soundEnabled)
{
switch (effect)
{
case HapticEffect.None:
break;
case HapticEffect.KeyClick:
click.PlaySystemSoundAsync();
break;
case HapticEffect.Return:
modifier.PlaySystemSoundAsync();
break;
case HapticEffect.Delete:
delete.PlaySystemSoundAsync();
break;
}
}
}
