/// <summary>
/// Overrides the message pump for the window so that we can respond to click events on the tabs themselves
/// </summary>
/// <param name="m">Message received by the pump</param>
protected override void WndProc(ref Message m)
{
switch ((WM)m.Msg)
{
case WM.WM_NCLBUTTONDOWN:
case WM.WM_LBUTTONDOWN:
Point relativeCursorPosition = GetRelativeCursorPosition(Cursor.Position);
// If we were over a tab, set the capture state for the window so that we'll actually receive a WM_LBUTTONUP message
if (ParentForm.TabRenderer.IsOverTab(ParentForm.Tabs, relativeCursorPosition) == null && !ParentForm.TabRenderer.IsOverAddButton(relativeCursorPosition))
{
ParentForm.ForwardMessage(ref m);
}
else
{
TitleBarTab clickedTab = ParentForm.TabRenderer.IsOverTab(ParentForm.Tabs, relativeCursorPosition);
if (clickedTab != null)
{
// If the user clicked the close button, remove the tab from the list
if (!ParentForm.TabRenderer.IsOverCloseButton(clickedTab, relativeCursorPosition))
{
ParentForm.ResizeTabContents(clickedTab);
ParentForm.SelectedTabIndex = ParentForm.Tabs.IndexOf(clickedTab);
Render();
}
OnMouseDown(new MouseEventArgs(MouseButtons.Left, 1, Cursor.Position.X, Cursor.Position.Y, 0));
}
ParentForm.Activate();
}
break;
case WM.WM_LBUTTONDBLCLK:
ParentForm.ForwardMessage(ref m);
break;
// We always return HTCAPTION for the hit test message so that the underlying window doesn't have its focus removed
case WM.WM_NCHITTEST:
m.Result = new IntPtr((int)HT.HTCAPTION);
break;
case WM.WM_LBUTTONUP:
case WM.WM_NCLBUTTONUP:
case WM.WM_MBUTTONUP:
case WM.WM_NCMBUTTONUP:
Point relativeCursorPosition2 = GetRelativeCursorPosition(Cursor.Position);
if (ParentForm.TabRenderer.IsOverTab(ParentForm.Tabs, relativeCursorPosition2) == null && !ParentForm.TabRenderer.IsOverAddButton(relativeCursorPosition2))
{
ParentForm.ForwardMessage(ref m);
}
else
{
TitleBarTab clickedTab = ParentForm.TabRenderer.IsOverTab(ParentForm.Tabs, relativeCursorPosition2);
if (clickedTab != null)
{
// If the user clicks the middle button/scroll wheel over a tab, close it
if ((WM)m.Msg == WM.WM_MBUTTONUP || (WM)m.Msg == WM.WM_NCMBUTTONUP)
{
clickedTab.Content.Close();
Render();
}
else
{
// If the user clicked the close button, remove the tab from the list
if (ParentForm.TabRenderer.IsOverCloseButton(clickedTab, relativeCursorPosition2))
{
clickedTab.Content.Close();
Render();
}
else
{
ParentForm.OnTabClicked(new TitleBarTabEventArgs(TabControlAction.Selected, clickedTab, ParentForm.SelectedTabIndex, s_wasDragging));
}
}
}
// Otherwise, if the user clicked the add button, call CreateTab to add a new tab to the list and select it
else if (ParentForm.TabRenderer.IsOverAddButton(relativeCursorPosition2))
{
ParentForm.AddNewTab();
}
if ((WM)m.Msg == WM.WM_LBUTTONUP || (WM)m.Msg == WM.WM_NCLBUTTONUP)
{
OnMouseUp(new MouseEventArgs(MouseButtons.Left, 1, Cursor.Position.X, Cursor.Position.Y, 0));
}
}
break;
default:
base.WndProc(ref m);
break;
}
}