public static object CoerceContentProperty(ISyncKeyTipAndContent syncElement,
object baseValue)
{
DependencyObject element = syncElement as DependencyObject;
Debug.Assert(element != null);
if (syncElement.KeepKeyTipAndContentInSync &&
syncElement.IsKeyTipSyncSource)
{
syncElement.KeepKeyTipAndContentInSync = false;
string stringContent = baseValue as string;
if (stringContent != null)
{
if (RibbonHelper.FindAccessKeyMarker(stringContent) < 0)
{
string keyTip = KeyTipService.GetKeyTip(element);
if (!string.IsNullOrEmpty(keyTip) &&
keyTip.Length > 0)
{
int accessorIndex = stringContent.IndexOf(keyTip[0]);
if (accessorIndex >= 0)
{
syncElement.KeepKeyTipAndContentInSync = true;
return(stringContent.Substring(0, accessorIndex) + '_' + stringContent.Substring(accessorIndex));
}
}
}
}
}
return(baseValue);
}
public static object CoerceKeyTip(ISyncKeyTipAndContent syncElement,
object baseValue,
DependencyProperty contentProperty)
{
DependencyObject element = syncElement as DependencyObject;
Debug.Assert(element != null);
if (syncElement.KeepKeyTipAndContentInSync &&
!syncElement.IsKeyTipSyncSource)
{
syncElement.KeepKeyTipAndContentInSync = false;
if (string.IsNullOrEmpty((string)baseValue))
{
string stringContent = element.GetValue(contentProperty) as string;
if (stringContent != null)
{
int accessIndex = RibbonHelper.FindAccessKeyMarker(stringContent);
if (accessIndex >= 0 && accessIndex < stringContent.Length - 1)
{
syncElement.KeepKeyTipAndContentInSync = true;
return(StringInfo.GetNextTextElement(stringContent, accessIndex + 1));
}
}
}
}
return(baseValue);
}
public static void Sync(ISyncKeyTipAndContent syncElement, DependencyProperty contentProperty)
{
if (syncElement.SyncingKeyTipAndContent)
{
return;
}
DependencyObject element = syncElement as DependencyObject;
Debug.Assert(element != null);
try
{
syncElement.SyncingKeyTipAndContent = true;
if (!syncElement.KeepKeyTipAndContentInSync)
{
string keyTip = KeyTipService.GetKeyTip(element);
bool isKeyTipSet = !string.IsNullOrEmpty(keyTip);
string stringContent = element.GetValue(contentProperty) as string;
if (stringContent != null)
{
int accessKeyIndex = RibbonHelper.FindAccessKeyMarker(stringContent);
if (isKeyTipSet)
{
if (accessKeyIndex == -1)
{
int accessorIndex = stringContent.IndexOf(keyTip[0]);
if (accessorIndex != -1)
{
syncElement.KeepKeyTipAndContentInSync = true;
syncElement.IsKeyTipSyncSource = true;
}
}
}
else if (accessKeyIndex != -1)
{
syncElement.KeepKeyTipAndContentInSync = true;
syncElement.IsKeyTipSyncSource = false;
}
}
}
element.CoerceValue(contentProperty);
element.CoerceValue(KeyTipService.KeyTipProperty);
}
finally
{
syncElement.SyncingKeyTipAndContent = false;
}
}