void SDockingTabWell::BringTabToFront( int32 TabIndexToActivate )
{
const bool bActiveIndexChanging = TabIndexToActivate != ForegroundTabIndex;
if ( bActiveIndexChanging )
{
const int32 LastForegroundTabIndex = FMath::Min(ForegroundTabIndex, Tabs.Num()-1);
// For positive indexes, don't go out of bounds on the array.
ForegroundTabIndex = FMath::Min(TabIndexToActivate, Tabs.Num()-1);
TSharedPtr<SDockingArea> MyDockArea = GetDockArea();
if ( Tabs.Num() > 0 && MyDockArea.IsValid() )
{
const TSharedPtr<SDockTab> PreviousForegroundTab = (LastForegroundTabIndex == INDEX_NONE)
? TSharedPtr<SDockTab>()
: Tabs[LastForegroundTabIndex];
const TSharedPtr<SDockTab> NewForegroundTab = (ForegroundTabIndex == INDEX_NONE)
? TSharedPtr<SDockTab>()
: Tabs[ForegroundTabIndex];
MyDockArea->GetTabManager()->GetPrivateApi().OnTabForegrounded(NewForegroundTab, PreviousForegroundTab);
}
}
// Always force a refresh, even if we don't think the active index changed.
RefreshParentContent();
}
void SDockingTabWell::RemoveAndDestroyTab(const TSharedRef<SDockTab>& TabToRemove, SDockingNode::ELayoutModification RemovalMethod)
{
int32 TabIndex = Tabs.Find(TabToRemove);
if (TabIndex != INDEX_NONE)
{
const TSharedPtr<SDockingTabStack> ParentTabStack = ParentTabStackPtr.Pin();
// Remove the old tab from the list of tabs and activate the new tab.
{
BringTabToFront(TabIndex);
Tabs.RemoveAt(TabIndex);
// We no longer have a tab in the foreground.
// This is important because BringTabToFront triggers notifications based on the difference in active tab indexes.
ForegroundTabIndex = INDEX_NONE;
// Now bring the last tab that we were on to the foreground
BringTabToFront(FMath::Max(TabIndex-1, 0));
}
if ( ensure(ParentTabStack.IsValid()) )
{
TSharedPtr<SDockingArea> DockAreaPtr = ParentTabStack->GetDockArea();
ParentTabStack->OnTabClosed( TabToRemove );
// We might be closing down an entire dock area, if this is a major tab.
// Use this opportunity to save its layout
if (RemovalMethod == SDockingNode::TabRemoval_Closed)
{
if (DockAreaPtr.IsValid())
{
DockAreaPtr->GetTabManager()->GetPrivateApi().OnTabClosing( TabToRemove );
}
}
if (Tabs.Num() == 0)
{
ParentTabStack->OnLastTabRemoved();
}
else
{
RefreshParentContent();
}
if (DockAreaPtr.IsValid())
{
DockAreaPtr->CleanUp( RemovalMethod );
}
}
}
}
void SDockingTabWell::BringTabToFront( int32 TabIndexToActivate )
{
const bool bActiveIndexChanging = TabIndexToActivate != ForegroundTabIndex;
if ( bActiveIndexChanging )
{
const int32 LastForegroundTabIndex = FMath::Min(ForegroundTabIndex, Tabs.Num()-1);
// For positive indexes, don't go out of bounds on the array.
ForegroundTabIndex = FMath::Min(TabIndexToActivate, Tabs.Num()-1);
TSharedPtr<SDockingArea> MyDockArea = GetDockArea();
if ( Tabs.Num() > 0 && MyDockArea.IsValid() )
{
const TSharedPtr<SDockTab> PreviousForegroundTab = (LastForegroundTabIndex == INDEX_NONE)
? TSharedPtr<SDockTab>()
: Tabs[LastForegroundTabIndex];
const TSharedPtr<SDockTab> NewForegroundTab = (ForegroundTabIndex == INDEX_NONE)
? TSharedPtr<SDockTab>()
: Tabs[ForegroundTabIndex];
MyDockArea->GetTabManager()->GetPrivateApi().OnTabForegrounded(NewForegroundTab, PreviousForegroundTab);
FGlobalTabmanager::Get()->GetPrivateApi().OnTabForegrounded(NewForegroundTab, PreviousForegroundTab);
}
}
// Always force a refresh, even if we don't think the active index changed.
RefreshParentContent();
// Update the native, global menu bar if a tab is in the foreground.
if( ForegroundTabIndex != INDEX_NONE )
{
TSharedPtr<FTabManager> TabManager = Tabs[ForegroundTabIndex]->GetTabManager();
if(TabManager == FGlobalTabmanager::Get())
{
FGlobalTabmanager::Get()->UpdateMainMenu(Tabs[ForegroundTabIndex], false);
}
else
{
TabManager->UpdateMainMenu(false);
}
}
}
