Ejemplo n.º 1
0
        protected override void WndProc(ref Message m)
        {
            switch (m.Msg)
            {
            case (int)Win32.Msgs.WM_NCLBUTTONDOWN:
            {
                if (IsDisposed)
                {
                    return;
                }

                uint result = Win32Helper.IsRunningOnMono ? 0 : NativeMethods.SendMessage(this.Handle, (int)Win32.Msgs.WM_NCHITTEST, 0, (uint)m.LParam);
                if (result == 2 && DockPanel.AllowEndUserDocking && this.AllowEndUserDocking)           // HITTEST_CAPTION
                {
                    Activate();
                    m_dockPanel.BeginDrag(this);
                }
                else
                {
                    base.WndProc(ref m);
                }

                return;
            }

            case (int)Win32.Msgs.WM_NCRBUTTONDOWN:
            {
                uint result = Win32Helper.IsRunningOnMono ? 0 : NativeMethods.SendMessage(this.Handle, (int)Win32.Msgs.WM_NCHITTEST, 0, (uint)m.LParam);
                if (result == 2)                // HITTEST_CAPTION
                {
                    DockPane theOnlyPane = (VisibleNestedPanes.Count == 1) ? VisibleNestedPanes[0] : null;
                    if (theOnlyPane != null && theOnlyPane.ActiveContent != null)
                    {
                        theOnlyPane.ShowTabPageContextMenu(this, PointToClient(Control.MousePosition));
                        return;
                    }
                }

                base.WndProc(ref m);
                return;
            }

            case (int)Win32.Msgs.WM_CLOSE:
                if (NestedPanes.Count == 0)
                {
                    base.WndProc(ref m);
                    return;
                }
                for (int i = NestedPanes.Count - 1; i >= 0; i--)
                {
                    DockContentCollection contents = NestedPanes[i].Contents;
                    for (int j = contents.Count - 1; j >= 0; j--)
                    {
                        IDockContent content = contents[j];
                        if (content.DockHandler.DockState != DockState.Float)
                        {
                            continue;
                        }

                        if (!content.DockHandler.CloseButton)
                        {
                            continue;
                        }

                        if (content.DockHandler.HideOnClose)
                        {
                            content.DockHandler.Hide();
                        }
                        else
                        {
                            content.DockHandler.Close();
                        }
                    }
                }
                return;

            case (int)Win32.Msgs.WM_NCLBUTTONDBLCLK:
            {
                uint result = !DoubleClickTitleBarToDock || Win32Helper.IsRunningOnMono
                            ? 0
                            : NativeMethods.SendMessage(this.Handle, (int)Win32.Msgs.WM_NCHITTEST, 0, (uint)m.LParam);

                if (result != 2)                // HITTEST_CAPTION
                {
                    base.WndProc(ref m);
                    return;
                }

                DockPanel.SuspendLayout(true);

                // Restore to panel
                foreach (DockPane pane in NestedPanes)
                {
                    if (pane.DockState != DockState.Float)
                    {
                        continue;
                    }
                    pane.RestoreToPanel();
                }


                DockPanel.ResumeLayout(true, true);
                return;
            }

            case WM_CHECKDISPOSE:
                if (NestedPanes.Count == 0)
                {
                    Dispose();
                }
                return;
            }

            base.WndProc(ref m);
        }