gecko/ipc/glue/WindowsMessageLoop.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=2 et :
*/
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Plugin App.
*
* The Initial Developer of the Original Code is
* Ben Turner <bent.mozilla@gmail.com>
* Portions created by the Initial Developer are Copyright (C) 2009
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef IPC_GLUE_WINDOWSMESSAGELOOP_H
#define IPC_GLUE_WINDOWSMESSAGELOOP_H
// This file is only meant to compile on windows
#include <windows.h>
#include "base/basictypes.h"
#include "nsTraceRefcnt.h"
namespace mozilla {
namespace ipc {
namespace windows {
class DeferredMessage
{
public:
DeferredMessage()
{
MOZ_COUNT_CTOR(DeferredMessage);
}
virtual ~DeferredMessage()
{
MOZ_COUNT_DTOR(DeferredMessage);
}
virtual void Run() = 0;
};
// Uses CallWndProc to deliver a message at a later time. Messages faked with
// this class must not have pointers in their wParam or lParam members as they
// may be invalid by the time the message actually runs.
class DeferredSendMessage : public DeferredMessage
{
public:
DeferredSendMessage(HWND aHWnd,
UINT aMessage,
WPARAM aWParam,
LPARAM aLParam)
: hWnd(aHWnd),
message(aMessage),
wParam(aWParam),
lParam(aLParam)
{ }
virtual void Run();
protected:
HWND hWnd;
UINT message;
WPARAM wParam;
LPARAM lParam;
};
// Uses RedrawWindow to fake several painting-related messages. Flags passed
// to the constructor go directly to RedrawWindow.
class DeferredRedrawMessage : public DeferredMessage
{
public:
DeferredRedrawMessage(HWND aHWnd,
UINT aFlags)
: hWnd(aHWnd),
flags(aFlags)
{ }
virtual void Run();
private:
HWND hWnd;
UINT flags;
};
// Uses UpdateWindow to generate a WM_PAINT message if needed.
class DeferredUpdateMessage : public DeferredMessage
{
public:
DeferredUpdateMessage(HWND aHWnd);
virtual void Run();
private:
HWND mWnd;
RECT mUpdateRect;
};
// This class duplicates a string that may exist in the lParam member of the
// message.
class DeferredSettingChangeMessage : public DeferredSendMessage
{
public:
DeferredSettingChangeMessage(HWND aHWnd,
UINT aMessage,
WPARAM aWParam,
LPARAM aLParam);
~DeferredSettingChangeMessage();
private:
wchar_t* lParamString;
};
// This class uses SetWindowPos to fake various size-related messages. Flags
// passed to the constructor go straight through to SetWindowPos.
class DeferredWindowPosMessage : public DeferredMessage
{
public:
DeferredWindowPosMessage(HWND aHWnd,
LPARAM aLParam,
bool aForCalcSize = false,
WPARAM aWParam = 0);
virtual void Run();
private:
WINDOWPOS windowPos;
};
// This class duplicates a data buffer for a WM_COPYDATA message.
class DeferredCopyDataMessage : public DeferredSendMessage
{
public:
DeferredCopyDataMessage(HWND aHWnd,
UINT aMessage,
WPARAM aWParam,
LPARAM aLParam);
~DeferredCopyDataMessage();
private:
COPYDATASTRUCT copyData;
};
class DeferredStyleChangeMessage : public DeferredMessage
{
public:
DeferredStyleChangeMessage(HWND aHWnd,
WPARAM aWParam,
LPARAM aLParam);
virtual void Run();
private:
HWND hWnd;
int index;
LONG_PTR style;
};
class DeferredSetIconMessage : public DeferredSendMessage
{
public:
DeferredSetIconMessage(HWND aHWnd,
UINT aMessage,
WPARAM aWParam,
LPARAM aLParam);
virtual void Run();
};
} /* namespace windows */
} /* namespace ipc */
} /* namespace mozilla */
#endif /* IPC_GLUE_WINDOWSMESSAGELOOP_H */