internal void Over(ContentWindow window)
{
if (object.ReferenceEquals(window, currentWindow))
{
return;
}
if (mainTabberIsEmpty)
{
if (shadowItem != null)
{
ZOrders.OrderFound();
int dropItemIndex = Items.IndexOf(shadowItem);
Items.Remove(shadowItem);
TabberItem replacedItem = window.ReplaceItem();
InsertTab(dropItemIndex, replacedItem);
currentWindow.Activate();
}
}
else
{
if (shadowItem != null)
{
ZOrders.OrderFound();
int dropItemIndex = Items.IndexOf(shadowItem);
Items.Remove(shadowItem);
TabberItem replacedItem = window.ReplaceItem();
InsertTab(dropItemIndex, replacedItem);
currentWindow.Activate();
}
}
}
private void FocusOrderWindow(ContentWindow window)
{
ZOrders.OrderFound();
if (!ZOrders.IsBackOfFront(window.GetTabberControl(), this))
{
ZOrders.ActiveReorder(window.GetTabberControl(), this);
currentWindow.Topmost = true;
currentWindow.Topmost = false;
window.Topmost = true;
window.Topmost = false;
}
}
internal void Move(ContentWindow window)
{
if (object.ReferenceEquals(window, currentWindow))
{
return;
}
if (mainTabberIsEmpty)
{
if (EmptyItemsPanelRect(window.GetDragItem())
.Contains(window.GetDragPosition()))
{
FocusOrderWindow(window);
if (shadowItem == null)
{
shadowItem = new ShadowTabberItem();
shadowItem.Header = new string(' ', 24);
Items.Add(shadowItem);
shadowItem.IsSelected = true;
}
}
else
{
if (shadowItem != null)
{
Items.Remove(shadowItem);
shadowItem = null;
}
}
}
else
{
if (ItemsPanelRect()
.Contains(window.GetDragPosition()))
{
FocusOrderWindow(window);
FakeTab(window.GetDragPosition());
}
else
{
if (shadowItem != null)
{
Items.Remove(shadowItem);
shadowItem = null;
lastSelectedItem.IsSelected = true;
}
oldReplaceItem = null;
}
}
}
private void ContentWindow_Check(ContentWindow window)
{
if (window.Equals(this))
{
return;
}
bool isEmpty = tabberControl.Items.Count < 1;
if (isEmpty)
{
Left = Left + (Width / 2);
Top = Top + (Height / 2);
Width = 0;
Height = 0;
Hide();
Close();
}
}
internal void Enter(ContentWindow window)
{
if (object.ReferenceEquals(window, currentWindow))
{
return;
}
mainTabberIsEmpty = (currentWindow as ContentWindow) == null && Items.Count < 1;
if (!mainTabberIsEmpty)
{
foreach (TabItem item in Items)
{
if (item.IsSelected)
{
lastSelectedItem = item;
break;
}
}
}
shadowItem = null;
}
private void DragEnd()
{
foreach (TabberControl tabberControl in TabberControl.ZOrders)
{
tabberControl.Over(this);
}
inDrag = false;
if (firstDrag)
{
if (tabberControl.Items.Count == 1)
{
TabberItem item = (TabberItem)tabberControl.Items[0];
ContentWindow newWindow = new ContentWindow(
item,
new Rect(Left, Top, ActualWidth, ActualHeight),
false);
Hide();
newWindow.Show();
newWindow.Activate();
Close();
}
}
firstDrag = false;
}
private void TabberItem_PreviewMouseMove(object sender, System.Windows.Input.MouseEventArgs e)
{
if (e.LeftButton == System.Windows.Input.MouseButtonState.Pressed && dragTabAndWindow)
{
Window currentWindow = Window.GetWindow(this);
TabberControl tabberControl = (TabberControl)Parent;
if (!((currentWindow as ContentWindow) == null &&
tabberControl.Items.Count < 2 &&
tabberControl.Pinned))
{
Point innerMousePosition = Mouse.GetPosition(this);
if (moveEnter)
{
if (tabberControl.TabStripPlacement == Dock.Top || tabberControl.TabStripPlacement == Dock.Bottom)
{
#region Drag Section
if (((innerMousePosition.Y <= 0 || innerMousePosition.Y >= ActualHeight) &&
(innerMousePosition.X > 0 && innerMousePosition.X < ActualWidth)) ||
(tabberControl.Items[0].Equals(this) && innerMousePosition.X <= 0) ||
(tabberControl.Items[tabberControl.Items.Count - 1].Equals(this) && innerMousePosition.X >= ActualWidth))
{
if (IsMouseCaptured)
{
Mouse.Capture(null);
}
DragPressed?.Invoke(this, new EventArgs());
Point dragPosition = this.PointToScreen(innerMousePosition);
Pin = false;
window = new ContentWindow(
this,
new Rect(
dragPosition.X + (-ActualWidth / 2),
dragPosition.Y + (-ActualHeight / 2),
currentWindow.ActualWidth,
currentWindow.ActualHeight),
true);
dragTabAndWindow = false;
inDragMove = true;
window.DragMove();
DragReleased?.Invoke(this, new EventArgs());
}
#endregion
#region Swap Section
else if (!tabberControl.Items[0].Equals(this) && innerMousePosition.X <= 0)
{
int index = tabberControl.Items.IndexOf(this);
TabberItem swapItem = (TabberItem)tabberControl.Items[index - 1];
if (swapItem.Pin == Pin)
{
tabberControl.Items.Remove(swapItem);
tabberControl.Items.Insert(index, swapItem);
}
}
else if (!tabberControl.Items[tabberControl.Items.Count - 1].Equals(this) && innerMousePosition.X >= ActualWidth)
{
int index = tabberControl.Items.IndexOf(this);
TabberItem swapItem = (TabberItem)tabberControl.Items[index + 1];
if (swapItem.Pin == Pin)
{
tabberControl.Items.Remove(swapItem);
tabberControl.Items.Insert(index, swapItem);
}
}
#endregion
}
else
{
#region Drag Section
if (((innerMousePosition.X <= 0 || innerMousePosition.X >= ActualWidth) &&
(innerMousePosition.Y > 0 && innerMousePosition.Y < ActualHeight)) ||
(tabberControl.Items[0].Equals(this) && innerMousePosition.Y <= 0) ||
(tabberControl.Items[tabberControl.Items.Count - 1].Equals(this) && innerMousePosition.Y >= ActualHeight))
{
if (IsMouseCaptured)
{
Mouse.Capture(null);
}
DragPressed?.Invoke(this, new EventArgs());
Point dragPosition = this.PointToScreen(innerMousePosition);
Pin = false;
window = new ContentWindow(
this,
new Rect(
dragPosition.X + (-ActualWidth / 2),
dragPosition.Y + (-ActualHeight / 2),
currentWindow.ActualWidth,
currentWindow.ActualHeight),
true);
dragTabAndWindow = false;
inDragMove = true;
window.DragMove();
DragReleased?.Invoke(this, new EventArgs());
}
#endregion
#region Swap Section
else if (!tabberControl.Items[0].Equals(this) && innerMousePosition.Y <= 0)
{
int index = tabberControl.Items.IndexOf(this);
TabberItem swapItem = (TabberItem)tabberControl.Items[index - 1];
if (swapItem.Pin == Pin)
{
tabberControl.Items.Remove(swapItem);
tabberControl.Items.Insert(index, swapItem);
}
}
else if (!tabberControl.Items[tabberControl.Items.Count - 1].Equals(this) && innerMousePosition.Y >= ActualHeight)
{
int index = tabberControl.Items.IndexOf(this);
TabberItem swapItem = (TabberItem)tabberControl.Items[index + 1];
if (swapItem.Pin == Pin)
{
tabberControl.Items.Remove(swapItem);
tabberControl.Items.Insert(index, swapItem);
}
}
#endregion
}
}
moveEnter = TabItemLocalRect().Contains(Mouse.GetPosition(this));
}
}
else if (e.LeftButton == MouseButtonState.Released)
{
if (IsMouseCaptured && !inDragMove)
{
Mouse.Capture(null);
}
}
}