/// <summary>Consumer method that processes mouse events in <see cref="_mouseEvents" /> that are recorded by <see cref="MouseHookCallback" />.</summary>
protected void InterpretMouseEvents()
{
foreach (MouseEvent mouseEvent in _mouseEvents.GetConsumingEnumerable())
{
int nCode = mouseEvent.nCode;
IntPtr wParam = mouseEvent.wParam;
MSLLHOOKSTRUCT?hookStruct = mouseEvent.MouseData;
if (nCode >= 0 && (int)WM.WM_MOUSEMOVE == (int)wParam)
{
HideTooltip();
// ReSharper disable PossibleInvalidOperationException
Point cursorPosition = new Point(hookStruct.Value.pt.x, hookStruct.Value.pt.y);
// ReSharper restore PossibleInvalidOperationException
bool reRender = false;
if (_tornTab != null && _dropAreas != null)
{
// ReSharper disable ForCanBeConvertedToForeach
for (int i = 0; i < _dropAreas.Length; i++)
// ReSharper restore ForCanBeConvertedToForeach
{
// If the cursor is within the drop area, combine the tab for the window that belongs to that drop area
if (_dropAreas[i].Item2.Contains(cursorPosition))
{
TitleBarTab tabToCombine = null;
lock (_tornTabLock)
{
if (_tornTab != null)
{
tabToCombine = _tornTab;
_tornTab = null;
}
}
if (tabToCombine != null)
{
int i1 = i;
// In all cases where we need to affect the UI, we call Invoke so that those changes are made on the main UI thread since
// we are on a separate processing thread in this case
Invoke(
new Action(
() =>
{
_dropAreas[i1].Item1.TabRenderer.CombineTab(tabToCombine, cursorPosition);
tabToCombine = null;
_tornTabForm.Close();
_tornTabForm = null;
if (_parentForm.Tabs.Count == 0)
{
_parentForm.Close();
}
}));
}
}
}
}
else if (!_parentForm.TabRenderer.IsTabRepositioning)
{
StartTooltipTimer();
// If we were over a close button previously, check to see if the cursor is still over that tab's
// close button; if not, re-render
if (_isOverCloseButtonForTab != -1 &&
(_isOverCloseButtonForTab >= _parentForm.Tabs.Count ||
!_parentForm.TabRenderer.IsOverCloseButton(_parentForm.Tabs[_isOverCloseButtonForTab], GetRelativeCursorPosition(cursorPosition))))
{
reRender = true;
_isOverCloseButtonForTab = -1;
}
// Otherwise, see if any tabs' close button is being hovered over
else
{
// ReSharper disable ForCanBeConvertedToForeach
for (int i = 0; i < _parentForm.Tabs.Count; i++)
// ReSharper restore ForCanBeConvertedToForeach
{
if (_parentForm.TabRenderer.IsOverCloseButton(_parentForm.Tabs[i], GetRelativeCursorPosition(cursorPosition)))
{
_isOverCloseButtonForTab = i;
reRender = true;
break;
}
}
}
}
else
{
Invoke(
new Action(
() =>
{
_wasDragging = true;
// When determining if a tab has been torn from the window while dragging, we take the drop area for this window and inflate it by the
// TabTearDragDistance setting
Rectangle dragArea = TabDropArea;
dragArea.Inflate(_parentForm.TabRenderer.TabTearDragDistance, _parentForm.TabRenderer.TabTearDragDistance);
// If the cursor is outside the tear area, tear it away from the current window
if (!dragArea.Contains(cursorPosition) && _tornTab == null)
{
lock (_tornTabLock)
{
if (_tornTab == null)
{
_parentForm.TabRenderer.IsTabRepositioning = false;
// Clear the event handler subscriptions from the tab and then create a thumbnail representation of it to use when dragging
_tornTab = _parentForm.SelectedTab;
_tornTab.ClearSubscriptions();
_tornTabForm = new TornTabForm(_tornTab, _parentForm.TabRenderer);
}
}
if (_tornTab != null)
{
_parentForm.SelectedTabIndex = (_parentForm.SelectedTabIndex == _parentForm.Tabs.Count - 1
? _parentForm.SelectedTabIndex - 1
: _parentForm.SelectedTabIndex + 1);
_parentForm.Tabs.Remove(_tornTab);
// If this tab was the only tab in the window, hide the parent window
if (_parentForm.Tabs.Count == 0)
{
_parentForm.Hide();
}
_tornTabForm.Show();
_dropAreas = (from window in _parentForm.ApplicationContext.OpenWindows.Where(w => w.Tabs.Count > 0)
select new Tuple <TitleBarTabs, Rectangle>(window, window.TabDropArea)).ToArray();
}
}
}));
}
Invoke(new Action(() => OnMouseMove(new MouseEventArgs(MouseButtons.None, 0, cursorPosition.X, cursorPosition.Y, 0))));
if (_parentForm.TabRenderer.IsTabRepositioning)
{
reRender = true;
}
if (reRender)
{
Invoke(new Action(() => Render(cursorPosition, true)));
}
}
else if (nCode >= 0 && (int)WM.WM_LBUTTONDOWN == (int)wParam)
{
_wasDragging = false;
}
else if (nCode >= 0 && (int)WM.WM_LBUTTONUP == (int)wParam)
{
// If we released the mouse button while we were dragging a torn tab, put that tab into a new window
if (_tornTab != null)
{
TitleBarTab tabToRelease = null;
lock (_tornTabLock)
{
if (_tornTab != null)
{
tabToRelease = _tornTab;
_tornTab = null;
}
}
if (tabToRelease != null)
{
Invoke(
new Action(
() =>
{
TitleBarTabs newWindow = (TitleBarTabs)Activator.CreateInstance(_parentForm.GetType());
// Set the initial window position and state properly
if (newWindow.WindowState == FormWindowState.Maximized)
{
Screen screen = Screen.AllScreens.First(s => s.WorkingArea.Contains(Cursor.Position));
newWindow.StartPosition = FormStartPosition.Manual;
newWindow.WindowState = FormWindowState.Normal;
newWindow.Left = screen.WorkingArea.Left;
newWindow.Top = screen.WorkingArea.Top;
newWindow.Width = screen.WorkingArea.Width;
newWindow.Height = screen.WorkingArea.Height;
}
else
{
newWindow.Left = Cursor.Position.X;
newWindow.Top = Cursor.Position.Y;
}
tabToRelease.Parent = newWindow;
_parentForm.ApplicationContext.OpenWindow(newWindow);
newWindow.Show();
newWindow.Tabs.Add(tabToRelease);
newWindow.SelectedTabIndex = 0;
newWindow.ResizeTabContents();
_tornTabForm.Close();
_tornTabForm = null;
if (_parentForm.Tabs.Count == 0)
{
_parentForm.Close();
}
}));
}
}
Invoke(new Action(() => OnMouseUp(new MouseEventArgs(MouseButtons.Left, 1, Cursor.Position.X, Cursor.Position.Y, 0))));
}
}
}
/// <summary>
/// Consumer method that processes mouse events in <see cref="MouseEvents" /> that are recorded by <see cref="MouseHookCallback" />
/// </summary>
protected void InterpretMouseEvents()
{
foreach (MouseEvent mouseEvent in MouseEvents.GetConsumingEnumerable())
{
int nCode = mouseEvent.nCode;
IntPtr wParam = mouseEvent.wParam;
MSLLHOOKSTRUCT?hookStruct = mouseEvent.MouseData;
if (nCode >= 0 && (int)WM.WM_MOUSEMOVE == (int)wParam)
{
Point cursorPosition = new Point(hookStruct.Value.pt.x, hookStruct.Value.pt.y);
bool reRender = false;
if (s_tornTab != null && DropAreas != null)
{
for (int i = 0; i < DropAreas.Length; i++)
{
if (DropAreas[i].Item2.Contains(cursorPosition)) // If the cursor is within the drop area, combine the tab for the window that belongs to that drop area
{
TitleBarTab tabToCombine = null;
lock (s_tornTabLock)
{
if (s_tornTab != null)
{
tabToCombine = s_tornTab;
s_tornTab = null;
}
}
if (tabToCombine != null)
{
int i1 = i;
Invoke(new Action(() =>
{
DropAreas[i1].Item1.TabRenderer.CombineTab(tabToCombine, cursorPosition);
tabToCombine = null;
s_tornTabForm.Close();
s_tornTabForm = null;
if (ParentForm.Tabs.Count == 0)
{
ParentForm.Close();
}
}));
}
}
}
}
else if (!ParentForm.TabRenderer.IsTabRepositioning)
{
// If we were over a close button previously, check to see if the cursor is still over that tab's close button; if not, re-render
if (IsOverCLoseButtonForTab != -1 && (IsOverCLoseButtonForTab >= ParentForm.Tabs.Count || !ParentForm.TabRenderer.IsOverCloseButton(ParentForm.Tabs[IsOverCLoseButtonForTab], GetRelativeCursorPosition(cursorPosition))))
{
reRender = true;
IsOverCLoseButtonForTab = -1;
}
else // Otherwise, see if any tabs' close button is being hovered over
{
for (int i = 0; i < ParentForm.Tabs.Count; i++)
{
if (ParentForm.TabRenderer.IsOverCloseButton(ParentForm.Tabs[i], GetRelativeCursorPosition(cursorPosition)))
{
IsOverCLoseButtonForTab = i;
reRender = true;
break;
}
}
}
}
else
{
Invoke(new Action(() =>
{
s_wasDragging = true;
Rectangle dragArea = TabDropArea;
dragArea.Inflate(ParentForm.TabRenderer.TabTearDragDistance, ParentForm.TabRenderer.TabTearDragDistance);
if (!dragArea.Contains(cursorPosition) && s_tornTab == null)
{
lock (s_tornTabLock)
{
if (s_tornTab == null)
{
ParentForm.TabRenderer.IsTabRepositioning = false;
s_tornTab = ParentForm.SelectedTab;
s_tornTab.ClearEventSubscriptions();
s_tornTabForm = new TornTabForm(s_tornTab, ParentForm.TabRenderer);
}
}
if (s_tornTab != null)
{
ParentForm.SelectedTabIndex = ParentForm.SelectedTabIndex == ParentForm.Tabs.Count - 1 ? ParentForm.SelectedTabIndex - 1 : ParentForm.SelectedTabIndex + 1;
ParentForm.Tabs.Remove(s_tornTab);
if (ParentForm.Tabs.Count == 0)
{
ParentForm.Hide();
}
s_tornTabForm.Show();
DropAreas = (from window in ParentForm.ApplicationContext.OpenWindows.Where(w => w.Tabs.Count > 0) select new Tuple <TitleBarTabs, Rectangle>(window, window.TabDropArea)).ToArray();
}
}
}));
}
Invoke(new Action(() => OnMouseMove(new MouseEventArgs(MouseButtons.None, 0, cursorPosition.X, cursorPosition.Y, 0))));
if (ParentForm.TabRenderer.IsTabRepositioning)
{
reRender = true;
}
if (reRender)
{
Invoke(new Action(() => Render(cursorPosition, true)));
}
}
else if (nCode >= 0 && (int)WM.WM_LBUTTONDOWN == (int)wParam)
{
s_wasDragging = false;
}
else if (nCode >= 0 && (int)WM.WM_LBUTTONUP == (int)wParam)
{
if (s_tornTab != null)
{
TitleBarTab tabToRelease = null;
lock (s_tornTabLock)
{
if (s_tornTab != null)
{
tabToRelease = s_tornTab;
s_tornTab = null;
}
}
if (tabToRelease != null)
{
Invoke(new Action(() =>
{
TitleBarTabs newWindow = (TitleBarTabs)Activator.CreateInstance(ParentForm.GetType());
if (newWindow.WindowState == FormWindowState.Maximized)
{
Screen screen = Screen.AllScreens.First(s => s.WorkingArea.Contains(Cursor.Position));
newWindow.StartPosition = FormStartPosition.Manual;
newWindow.WindowState = FormWindowState.Normal;
newWindow.Left = screen.WorkingArea.Left;
newWindow.Top = screen.WorkingArea.Top;
newWindow.Width = screen.WorkingArea.Width;
newWindow.Height = screen.WorkingArea.Height;
}
else
{
newWindow.Left = Cursor.Position.X;
newWindow.Top = Cursor.Position.Y;
}
tabToRelease.Parent = newWindow;
ParentForm.ApplicationContext.OpenWindow(newWindow);
newWindow.Show();
newWindow.Tabs.Add(tabToRelease);
newWindow.SelectedTabIndex = 0;
newWindow.ResizeTabContents();
s_tornTabForm.Close();
s_tornTabForm = null;
if (ParentForm.Tabs.Count == 0)
{
ParentForm.Close();
}
}));
}
}
Invoke(new Action(() => OnMouseUp(new MouseEventArgs(MouseButtons.Left, 1, Cursor.Position.X, Cursor.Position.Y, 0))));
}
}
}
