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// Copyright © 2008, 2010, Oracle and/or its affiliates. All rights reserved.
//
// MySQL Connector/NET is licensed under the terms of the GPLv2
// <http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most
// MySQL Connectors. There are special exceptions to the terms and
// conditions of the GPLv2 as it is applied to this software, see the
// FLOSS License Exception
// <http://www.mysql.com/about/legal/licensing/foss-exception.html>.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published
// by the Free Software Foundation; version 2 of the License.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
using Microsoft.VisualStudio.Shell.Interop;
using Microsoft.VisualStudio;
using Microsoft.VisualStudio.OLE.Interop;
using Microsoft.VisualStudio.TextManager.Interop;
using System.Windows.Forms;
using System.Drawing;
namespace MySql.Data.VisualStudio.Editors
{
internal class VSCodeEditorWindow : NativeWindow,
System.Windows.Forms.IMessageFilter, IOleCommandTarget, IDisposable
{
ServiceBroker services;
VSCodeEditor coreEditor;
private IOleCommandTarget cmdTarget;
private uint cmdTargetCookie;
public VSCodeEditorWindow(ServiceBroker sb, UserControl parent)
{
services = sb;
coreEditor = new VSCodeEditor(parent.Handle, services);
//Create window
IVsCodeWindow win = coreEditor.CodeWindow;
cmdTarget = win as IOleCommandTarget;
IVsTextView textView;
int hr = win.GetPrimaryView(out textView);
if (hr != VSConstants.S_OK)
Marshal.ThrowExceptionForHR(hr);
// assign the window handle
IntPtr commandHwnd = textView.GetWindowHandle();
AssignHandle(commandHwnd);
//Register priority command target
hr = services.VsRegisterPriorityCommandTarget.RegisterPriorityCommandTarget(
0, (IOleCommandTarget)this, out cmdTargetCookie);
if (hr != VSConstants.S_OK)
Marshal.ThrowExceptionForHR(hr);
//Add message filter
Application.AddMessageFilter((System.Windows.Forms.IMessageFilter)this);
}
public VSCodeEditor CoreEditor
{
get { return coreEditor; }
}
public void SetWindowPos(Rectangle r)
{
if (coreEditor == null) return;
NativeMethods.SetWindowPos(coreEditor.Hwnd, IntPtr.Zero, r.Left, r.Top, r.Width, r.Height, 0x4);
}
public void SetFocus()
{
if (coreEditor == null) return;
NativeMethods.SetFocus(coreEditor.Hwnd);
}
public override void DestroyHandle()
{
ReleaseHandle();
}
#region IDisposable Members
public void Dispose()
{
//Remove message filter
Application.RemoveMessageFilter((System.Windows.Forms.IMessageFilter)this);
if (services != null)
{
// Remove this object from the list of the priority command targets.
if (cmdTargetCookie != 0)
{
IVsRegisterPriorityCommandTarget register =
services.VsRegisterPriorityCommandTarget;
if (null != register)
{
int hr = register.UnregisterPriorityCommandTarget(cmdTargetCookie);
if (hr != VSConstants.S_OK)
Marshal.ThrowExceptionForHR(hr);
}
cmdTargetCookie = 0;
}
services = null;
}
if (coreEditor != null)
{
IVsCodeWindow win = coreEditor.CodeWindow;
win.Close();
coreEditor = null;
}
}
#endregion
#region IMessageFilter Members
/// <summary>
/// Filters out a message before it is dispatched
/// </summary>
/// <param name="m">The message to be dispatched. You cannot modify this message.</param>
/// <returns>True to filter the message and stop it from being dispatched; false to allow the message to continue to the next filter or control.</returns>
public bool PreFilterMessage(ref Message m)
{
//IVsFilterKeys2 performs advanced keyboard message translation
IVsFilterKeys2 filterKeys2 = services.VsFilterKeys2;
MSG[] messages = new MSG[1];
messages[0].hwnd = m.HWnd;
messages[0].lParam = m.LParam;
messages[0].wParam = m.WParam;
messages[0].message = (uint)m.Msg;
Guid cmdGuid;
uint cmdCode;
int cmdTranslated;
int keyComboStarts;
int hr = filterKeys2.TranslateAcceleratorEx(messages,
(uint)__VSTRANSACCELEXFLAGS.VSTAEXF_UseTextEditorKBScope //Translates keys using TextEditor key bindings. Equivalent to passing CMDUIGUID_TextEditor, CMDSETID_StandardCommandSet97, and guidKeyDupe for scopes and the VSTAEXF_IgnoreActiveKBScopes flag.
| (uint)__VSTRANSACCELEXFLAGS.VSTAEXF_AllowModalState, //By default this function cannot be called when the shell is in a modal state, since command routing is inherently dangerous. However if you must access this in a modal state, specify this flag, but keep in mind that many commands will cause unpredictable behavior if fired.
0,
null,
out cmdGuid,
out cmdCode,
out cmdTranslated,
out keyComboStarts);
if (hr != VSConstants.S_OK)
return false;
return cmdTranslated != 0;
}
#endregion
#region IOleCommandTarget Members
/// <summary>
/// Executes a specified command or displays help for a command.
/// </summary>
/// <param name="pguidCmdGroup">Pointer to command group</param>
/// <param name="nCmdID">Identifier of command to execute</param>
/// <param name="nCmdexecopt">Options for executing the command</param>
/// <param name="pvaIn">Pointer to input arguments</param>
/// <param name="pvaOut">Pointer to command output</param>
/// <returns></returns>
public int Exec(ref Guid pguidCmdGroup, uint nCmdID, uint nCmdexecopt, IntPtr pvaIn, IntPtr pvaOut)
{
return cmdTarget.Exec(ref pguidCmdGroup, nCmdID, nCmdexecopt, pvaIn, pvaOut);
}
/// <summary>
/// Queries the object for the status of one or more commands generated by user interface events.
/// </summary>
/// <param name="pguidCmdGroup">Pointer to command group</param>
/// <param name="cCmds">Number of commands in prgCmds array</param>
/// <param name="prgCmds">Array of commands</param>
/// <param name="pCmdText">Pointer to name or status of command</param>
/// <returns></returns>
public int QueryStatus(ref Guid pguidCmdGroup, uint cCmds, OLECMD[] prgCmds, IntPtr pCmdText)
{
return cmdTarget.QueryStatus(ref pguidCmdGroup, cCmds, prgCmds, pCmdText);
}
#endregion
}
internal static class NativeMethods
{
[DllImport("user32.dll", ExactSpelling = true, CharSet = CharSet.Auto)]
internal static extern IntPtr SetFocus(IntPtr hWnd);
[DllImport("user32.dll", ExactSpelling = true, CharSet = CharSet.Auto)]
[return: MarshalAs(UnmanagedType.U1)]
internal static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int x, int y, int cx, int cy, int flags);
}
}
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