internal void StartTabDrag(Point p, ChromeTabItem tab = null, bool isTabGrab = false)
{
this._lastMouseDown = DateTime.UtcNow;
if (tab == null)
{
HitTestResult result = VisualTreeHelper.HitTest(this, this.downPoint);
if (result == null)
{
return;
}
DependencyObject source = result.VisualHit;
while (source != null && !this.Children.Contains(source as UIElement))
{
source = VisualTreeHelper.GetParent(source);
}
if (source == null)
{
//The mouse is not over a tab item, so just return.
return;
}
this.draggedTab = source as ChromeTabItem;
}
else if (tab != null)
{
this.draggedTab = tab;
}
else
{
return;
}
if (this.draggedTab != null)
{
if (this.Children.Count == 1 &&
ParentTabControl.DragWindowWithOneTab &&
Mouse.LeftButton == MouseButtonState.Pressed &&
!isTabGrab)
{
this.draggingWindow = true;
Window.GetWindow(this).DragMove();
}
else
{
this.downTabBoundsPoint = MouseUtilities.CorrectGetPosition(this.draggedTab);
Canvas.SetZIndex(this.draggedTab, 1000);
ParentTabControl.ChangeSelectedItem(this.draggedTab);
if (isTabGrab)
{
for (int i = 0; i < this.Children.Count; i++)
{
ProcessMouseMove(new Point(p.X + 0.1, p.Y));
}
}
else
{
ProcessMouseMove(new Point(p.X + 0.1, p.Y));
}
}
}
}
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
if (e.Key == Key.Enter || e.Key == Key.Space || e.Key == Key.Return)
{
ParentTabControl.ChangeSelectedItem(this);
}
}
protected override void OnPreviewMouseLeftButtonUp(MouseButtonEventArgs e)
{
base.OnPreviewMouseLeftButtonUp(e);
this.draggingWindow = false;
if (this.addButtonRect.Contains(e.GetPosition(this)) && this.addButton.Background == Brushes.DarkGray)
{
this.addButton.Background = null;
this.InvalidateVisual();
if (this.addButton.Visibility == Visibility.Visible)
{
//ParentTabControl.AddTab(new Label(), true); // HACK: Do something with default templates, here.
//AddTabClick();
ParentTabControl.RerouteAddTabClick();
}
return;
}
if (this.IsMouseCaptured)
{
Mouse.Capture(null);
double offset = 0;
if (this.slideIndex < this.originalIndex + 1)
{
offset = this.slideIntervals[this.slideIndex + 1] - 2 * this.currentTabWidth / 3 + this.overlap;
}
else if (this.slideIndex > this.originalIndex + 1)
{
offset = this.slideIntervals[this.slideIndex - 1] + 2 * this.currentTabWidth / 3 - this.overlap;
}
Console.WriteLine(offset);
Action completed = () =>
{
if (this.draggedTab != null)
{
ParentTabControl.ChangeSelectedItem(this.draggedTab);
this.draggedTab.Margin = new Thickness(offset, 0, -offset, 0);
this.draggedTab = null;
this.captureGuard = 0;
ParentTabControl.MoveTab(this.originalIndex, this.slideIndex - 1);
}
};
Reanimate(this.draggedTab, offset, .1, completed);
}
else
{
if (this.draggedTab != null)
{
ParentTabControl.ChangeSelectedItem(this.draggedTab);
this.draggedTab.Margin = new Thickness(0);
}
this.draggedTab = null;
this.captureGuard = 0;
}
}
protected override void OnInitialized(EventArgs e)
{
base.OnInitialized(e);
this.SetTabItemsOnTabs();
if (Children.Count > 0)
{
if (Children[0] is ChromeTabItem)
{
ParentTabControl.ChangeSelectedItem(Children[0] as ChromeTabItem);
}
}
}
protected override void OnInitialized(EventArgs e)
{
base.OnInitialized(e);
this.SetTabItemsOnTabs();
if (Children.Count > 0)
{
if (Children[0] is ChromeTabItem)
{
ParentTabControl.ChangeSelectedItem(Children[0] as ChromeTabItem);
}
}
if (ParentTabControl != null && ParentTabControl.AddButtonTemplate != null)
{
SetAddButtonControlTemplate(ParentTabControl.AddButtonTemplate);
}
}
internal void StartTabDrag(Point p, ChromeTabItem tab = null, bool isTabGrab = false)
{
this._lastMouseDown = DateTime.UtcNow;
if (tab == null)
{
tab = GetTabFromMousePosition(this.downPoint);
}
if (tab != null)
{
this.draggedTab = tab;
}
else
{
//The mouse is not over a tab item, so just return.
return;
}
if (this.draggedTab != null)
{
if (this.Children.Count == 1 &&
ParentTabControl.DragWindowWithOneTab &&
Mouse.LeftButton == MouseButtonState.Pressed &&
!isTabGrab)
{
this.draggingWindow = true;
Window.GetWindow(this).DragMove();
}
else
{
this.downTabBoundsPoint = MouseUtilities.CorrectGetPosition(this.draggedTab);
Canvas.SetZIndex(this.draggedTab, 1000);
ParentTabControl.ChangeSelectedItem(this.draggedTab);
if (isTabGrab)
{
for (int i = 0; i < this.Children.Count; i++)
{
ProcessMouseMove(new Point(p.X + 0.1, p.Y));
}
}
}
}
}
private void OnTabRelease(Point p, bool closeTabOnRelease, double animationDuration = stickyReanimateDuration)
{
lock (_lockObject)
{
this.draggingWindow = false;
if (ParentTabControl.IsAddButtonVisible)
{
if (this.addButtonRect.Contains(p) && this.addButton.Background == Brushes.DarkGray)
{
this.addButton.Background = null;
this.InvalidateVisual();
if (this.addButton.Visibility == Visibility.Visible)
{
ParentTabControl.AddTab();
}
return;
}
}
if (this.IsMouseCaptured)
{
this.ReleaseMouseCapture();
double offset = 0;
if (this.slideIntervals != null)
{
if (this.slideIndex < this.originalIndex + 1)
{
offset = this.slideIntervals[this.slideIndex + 1] - GetWidthForTabItem(this.draggedTab) * (1 - tabWidthSlidePercent) + this.overlap;
}
else if (this.slideIndex > this.originalIndex + 1)
{
offset = this.slideIntervals[this.slideIndex - 1] + GetWidthForTabItem(this.draggedTab) * (1 - tabWidthSlidePercent) - this.overlap;
}
}
int localSlideIndex = this.slideIndex;
Action completed = () =>
{
if (this.draggedTab != null)
{
ParentTabControl.ChangeSelectedItem(this.draggedTab);
object vm = this.draggedTab.Content;
this.draggedTab.Margin = new Thickness(offset, 0, -offset, 0);
this.draggedTab = null;
this.captureGuard = 0;
ParentTabControl.MoveTab(this.originalIndex, localSlideIndex - 1);
this.slideIntervals = null;
this.addButton.Visibility = System.Windows.Visibility.Visible;
_hideAddButton = false;
this.InvalidateVisual();
if (closeTabOnRelease && ParentTabControl.CloseTabCommand != null)
{
Debug.WriteLine("sendt close tab command");
ParentTabControl.CloseTabCommand.Execute(vm);
}
if (this.Children.Count > 1)
{
//this fixes a bug where sometimes tabs got stuck in the wrong position.
RealignAllTabs();
}
}
};
Reanimate(this.draggedTab, offset, animationDuration, completed);
}
else
{
if (this.draggedTab != null)
{
ParentTabControl.ChangeSelectedItem(this.draggedTab);
this.draggedTab.Margin = new Thickness(0);
}
this.draggedTab = null;
this.captureGuard = 0;
this.slideIntervals = null;
}
}
}