зеркало из https://github.com/mozilla/gecko-dev.git
80 строки
2.1 KiB
C++
80 строки
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef __mozilla_WindowHook_h__
|
|
#define __mozilla_WindowHook_h__
|
|
|
|
#include <windows.h>
|
|
|
|
#include <nsHashKeys.h>
|
|
#include <nsClassHashtable.h>
|
|
#include <nsTArray.h>
|
|
|
|
#include "nsAppShell.h"
|
|
|
|
class nsWindow;
|
|
|
|
namespace mozilla {
|
|
namespace widget {
|
|
|
|
class WindowHook {
|
|
public:
|
|
|
|
// It is expected that most callbacks will return false
|
|
typedef bool (*Callback)(void *aContext, HWND hWnd, UINT nMsg,
|
|
WPARAM wParam, LPARAM lParam, LRESULT *aResult);
|
|
|
|
nsresult AddHook(UINT nMsg, Callback callback, void *context);
|
|
nsresult RemoveHook(UINT nMsg, Callback callback, void *context);
|
|
nsresult AddMonitor(UINT nMsg, Callback callback, void *context);
|
|
nsresult RemoveMonitor(UINT nMsg, Callback callback, void *context);
|
|
|
|
private:
|
|
struct CallbackData {
|
|
Callback cb;
|
|
void *context;
|
|
|
|
CallbackData() : cb(nullptr), context(nullptr) {}
|
|
CallbackData(Callback cb, void *ctx) : cb(cb), context(ctx) {}
|
|
bool Invoke(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam,
|
|
LRESULT *aResult);
|
|
bool operator== (const CallbackData &rhs) const {
|
|
return cb == rhs.cb && context == rhs.context;
|
|
}
|
|
bool operator!= (const CallbackData &rhs) const {
|
|
return !(*this == rhs);
|
|
}
|
|
operator bool () const {
|
|
return !!cb;
|
|
}
|
|
};
|
|
|
|
typedef nsTArray<CallbackData> CallbackDataArray;
|
|
struct MessageData {
|
|
UINT nMsg;
|
|
CallbackData hook;
|
|
CallbackDataArray monitors;
|
|
};
|
|
|
|
bool Notify(HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam,
|
|
LRESULT *aResult);
|
|
|
|
MessageData *Lookup(UINT nMsg);
|
|
MessageData *LookupOrCreate(UINT nMsg);
|
|
void DeleteIfEmpty(MessageData *data);
|
|
|
|
typedef nsTArray<MessageData> MessageDataArray;
|
|
MessageDataArray mMessageData;
|
|
|
|
// For Notify
|
|
friend class ::nsWindow;
|
|
};
|
|
|
|
}
|
|
}
|
|
|
|
#endif // __mozilla_WindowHook_h__
|