зеркало из https://github.com/mozilla/gecko-dev.git
88 строки
2.4 KiB
C++
88 строки
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsToolkit_h__
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#define nsToolkit_h__
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#include "nsdefs.h"
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#include "nsITimer.h"
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#include "nsCOMPtr.h"
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#include <windows.h>
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// Avoid including windowsx.h to prevent macro pollution
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#ifndef GET_X_LPARAM
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#define GET_X_LPARAM(pt) (short(LOWORD(pt)))
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#endif
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#ifndef GET_Y_LPARAM
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#define GET_Y_LPARAM(pt) (short(HIWORD(pt)))
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#endif
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/**
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* Makes sure exit/enter mouse messages are always dispatched.
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* In the case where the mouse has exited the outer most window the
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* only way to tell if it has exited is to set a timer and look at the
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* mouse pointer to see if it is within the outer most window.
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*/
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class MouseTrailer
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{
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public:
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HWND GetMouseTrailerWindow() { return mMouseTrailerWindow; }
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HWND GetCaptureWindow() { return mCaptureWindow; }
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void SetMouseTrailerWindow(HWND aWnd);
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void SetCaptureWindow(HWND aWnd);
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void Disable() { mEnabled = false; DestroyTimer(); }
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void Enable() { mEnabled = true; CreateTimer(); }
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void DestroyTimer();
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MouseTrailer();
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~MouseTrailer();
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private:
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nsresult CreateTimer();
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static void TimerProc(nsITimer* aTimer, void* aClosure);
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// Information for mouse enter/exit events
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HWND mMouseTrailerWindow;
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HWND mCaptureWindow;
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bool mIsInCaptureMode;
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bool mEnabled;
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nsCOMPtr<nsITimer> mTimer;
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};
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/**
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* Wrapper around the thread running the message pump.
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* The toolkit abstraction is necessary because the message pump must
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* execute within the same thread that created the widget under Win32.
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*/
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class nsToolkit
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{
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public:
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nsToolkit();
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private:
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~nsToolkit();
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public:
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static nsToolkit* GetToolkit();
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static HINSTANCE mDllInstance;
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static MouseTrailer *gMouseTrailer;
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static void Startup(HMODULE hModule);
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static void Shutdown();
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protected:
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static nsToolkit* gToolkit;
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MouseTrailer mMouseTrailer;
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};
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#endif // TOOLKIT_H
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