//-------------------------------------------------------------------------------
//
// Internal Methods
//
//-------------------------------------------------------------------------------
#region Internal Methods
/// <summary>
/// Register the weak references for HighContrastCallback
/// </summary>
/// <param name="highContrastCallback"></param>
internal static void RegisterHighContrastCallback(HighContrastCallback highContrastCallback)
{
lock ( __lock )
{
int count = __highContrastCallbackList.Count;
int i = 0;
int j = 0;
// Every 100 items, We go through the list to remove the references
// which have been collected by GC.
if (__increaseCount > CleanTolerance)
{
while (i < count)
{
WeakReference weakRef = __highContrastCallbackList[j];
if (weakRef.IsAlive)
{
j++;
}
else
{
// Remove the unavaliable reference from the list
__highContrastCallbackList.RemoveAt(j);
}
i++;
}
// Reset the count
__increaseCount = 0;
}
__highContrastCallbackList.Add(new WeakReference(highContrastCallback));
__increaseCount++;
}
}
// Token: 0x06006D74 RID: 28020 RVA: 0x001F6C54 File Offset: 0x001F4E54
private static void UpdateHighContrast()
{
object _lock = HighContrastHelper.__lock;
lock (_lock)
{
int count = HighContrastHelper.__highContrastCallbackList.Count;
int i = 0;
int num = 0;
while (i < count)
{
WeakReference weakReference = HighContrastHelper.__highContrastCallbackList[num];
if (weakReference.IsAlive)
{
HighContrastCallback highContrastCallback = weakReference.Target as HighContrastCallback;
if (highContrastCallback.Dispatcher != null)
{
highContrastCallback.Dispatcher.BeginInvoke(DispatcherPriority.Background, new HighContrastHelper.UpdateHighContrastCallback(HighContrastHelper.OnUpdateHighContrast), highContrastCallback);
}
else
{
HighContrastHelper.OnUpdateHighContrast(highContrastCallback);
}
num++;
}
else
{
HighContrastHelper.__highContrastCallbackList.RemoveAt(num);
}
i++;
}
HighContrastHelper.__increaseCount = 0;
}
}
// Token: 0x06006D72 RID: 28018 RVA: 0x001F6BA0 File Offset: 0x001F4DA0
internal static void RegisterHighContrastCallback(HighContrastCallback highContrastCallback)
{
object _lock = HighContrastHelper.__lock;
lock (_lock)
{
int count = HighContrastHelper.__highContrastCallbackList.Count;
int i = 0;
int num = 0;
if (HighContrastHelper.__increaseCount > 100)
{
while (i < count)
{
WeakReference weakReference = HighContrastHelper.__highContrastCallbackList[num];
if (weakReference.IsAlive)
{
num++;
}
else
{
HighContrastHelper.__highContrastCallbackList.RemoveAt(num);
}
i++;
}
HighContrastHelper.__increaseCount = 0;
}
HighContrastHelper.__highContrastCallbackList.Add(new WeakReference(highContrastCallback));
HighContrastHelper.__increaseCount++;
}
}
// Token: 0x06006D75 RID: 28021 RVA: 0x001F6D14 File Offset: 0x001F4F14
private static void OnUpdateHighContrast(HighContrastCallback highContrastCallback)
{
bool highContrast = SystemParameters.HighContrast;
Color windowTextColor = SystemColors.WindowTextColor;
if (highContrast)
{
highContrastCallback.TurnHighContrastOn(windowTextColor);
return;
}
highContrastCallback.TurnHighContrastOff();
}
/// <summary>
/// Invoke the callback
/// </summary>
/// <param name="highContrastCallback"></param>
private static void OnUpdateHighContrast(HighContrastCallback highContrastCallback)
{
// Get the current setting.
bool isHighContrast = SystemParameters.HighContrast;
Color windowTextColor = SystemColors.WindowTextColor;
if (isHighContrast)
{
highContrastCallback.TurnHighContrastOn(windowTextColor);
}
else
{
highContrastCallback.TurnHighContrastOff();
}
}
//-------------------------------------------------------------------------------
//
// Private Methods
//
//-------------------------------------------------------------------------------
#region Private Methods
/// <summary>
/// UpdateHighContrast which calls out all the registered callbacks.
/// </summary>
private static void UpdateHighContrast()
{
lock ( __lock )
{
int count = __highContrastCallbackList.Count;
int i = 0;
int j = 0;
// Now go through the list,
// And we will notify the alive callbacks
// or remove the references which have been collected by GC.
while (i < count)
{
WeakReference weakRef = __highContrastCallbackList[j];
if (weakRef.IsAlive)
{
HighContrastCallback highContrastCallback = weakRef.Target as HighContrastCallback;
if (highContrastCallback.Dispatcher != null)
{
highContrastCallback.Dispatcher.BeginInvoke(DispatcherPriority.Background,
new UpdateHighContrastCallback(OnUpdateHighContrast),
highContrastCallback);
}
else
{
OnUpdateHighContrast(highContrastCallback);
}
j++;
}
else
{
// Remove the dead ones
__highContrastCallbackList.RemoveAt(j);
}
i++;
}
// Reset the count
__increaseCount = 0;
}
}
//--------------------------------------------------------------------------------
//
// Internal Methods
//
//-------------------------------------------------------------------------------
#region Internal Methods
/// <summary>
/// Register the weak references for HighContrastCallback
/// </summary>
/// <param name="highContrastCallback"></param>
internal static void RegisterHighContrastCallback(HighContrastCallback highContrastCallback)
{
lock ( __lock )
{
int count = __highContrastCallbackList.Count;
int i = 0;
int j = 0;
// Every 100 items, We go through the list to remove the references
// which have been collected by GC.
if ( __increaseCount > CleanTolerance )
{
while ( i < count )
{
WeakReference weakRef = __highContrastCallbackList[j];
if ( weakRef.IsAlive )
{
j++;
}
else
{
// Remove the unavaliable reference from the list
__highContrastCallbackList.RemoveAt(j);
}
i++;
}
// Reset the count
__increaseCount = 0;
}
__highContrastCallbackList.Add(new WeakReference(highContrastCallback));
__increaseCount++;
}
}
/// <summary>
/// Invoke the callback
/// </summary>
/// <param name="highContrastCallback"></param>
private static void OnUpdateHighContrast(HighContrastCallback highContrastCallback)
{
// Get the current setting.
bool isHighContrast = SystemParameters.HighContrast;
Color windowTextColor = SystemColors.WindowTextColor;
if ( isHighContrast )
{
highContrastCallback.TurnHighContrastOn(windowTextColor);
}
else
{
highContrastCallback.TurnHighContrastOff();
}
}
