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nsToolkit.cpp
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nsToolkit.cpp
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** 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.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Masayuki Nakano <masayuki@d-toybox.com>
*
* 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 ***** */
#include "nsToolkit.h"
#include "nsAppShell.h"
#include "nsWindow.h"
#include "nsWidgetsCID.h"
#include "prmon.h"
#include "prtime.h"
#include "nsGUIEvent.h"
#include "nsIServiceManager.h"
#include "nsComponentManagerUtils.h"
#include <objbase.h>
#include <initguid.h>
#include "nsUXThemeData.h"
// unknwn.h is needed to build with WIN32_LEAN_AND_MEAN
#include <unknwn.h>
nsToolkit* nsToolkit::gToolkit = nsnull;
HINSTANCE nsToolkit::mDllInstance = 0;
static const unsigned long kD3DUsageDelay = 5000;
static void
StartAllowingD3D9(nsITimer *aTimer, void *aClosure)
{
nsWindow::StartAllowingD3D9(true);
}
MouseTrailer* nsToolkit::gMouseTrailer;
//-------------------------------------------------------------------------
//
// constructor
//
//-------------------------------------------------------------------------
nsToolkit::nsToolkit()
{
MOZ_COUNT_CTOR(nsToolkit);
#if defined(MOZ_STATIC_COMPONENT_LIBS)
nsToolkit::Startup(GetModuleHandle(NULL));
#endif
gMouseTrailer = &mMouseTrailer;
mD3D9Timer = do_CreateInstance("@mozilla.org/timer;1");
mD3D9Timer->InitWithFuncCallback(::StartAllowingD3D9,
NULL,
kD3DUsageDelay,
nsITimer::TYPE_ONE_SHOT);
}
//-------------------------------------------------------------------------
//
// destructor
//
//-------------------------------------------------------------------------
nsToolkit::~nsToolkit()
{
MOZ_COUNT_DTOR(nsToolkit);
gMouseTrailer = nsnull;
}
void
nsToolkit::Startup(HMODULE hModule)
{
nsToolkit::mDllInstance = hModule;
nsUXThemeData::Initialize();
}
void
nsToolkit::Shutdown()
{
delete gToolkit;
gToolkit = nsnull;
}
void
nsToolkit::StartAllowingD3D9()
{
nsToolkit::GetToolkit()->mD3D9Timer->Cancel();
nsWindow::StartAllowingD3D9(false);
}
//-------------------------------------------------------------------------
//
// Return the nsToolkit for the current thread. If a toolkit does not
// yet exist, then one will be created...
//
//-------------------------------------------------------------------------
// static
nsToolkit* nsToolkit::GetToolkit()
{
if (!gToolkit) {
gToolkit = new nsToolkit();
}
return gToolkit;
}
//-------------------------------------------------------------------------
//
//
//-------------------------------------------------------------------------
MouseTrailer::MouseTrailer() : mMouseTrailerWindow(nsnull), mCaptureWindow(nsnull),
mIsInCaptureMode(false), mEnabled(true)
{
}
//-------------------------------------------------------------------------
//
//
//-------------------------------------------------------------------------
MouseTrailer::~MouseTrailer()
{
DestroyTimer();
}
//-------------------------------------------------------------------------
//
//
//-------------------------------------------------------------------------
void MouseTrailer::SetMouseTrailerWindow(HWND aWnd)
{
if (mMouseTrailerWindow != aWnd && mTimer) {
// Make sure TimerProc is fired at least once for the old window
TimerProc(nsnull, nsnull);
}
mMouseTrailerWindow = aWnd;
CreateTimer();
}
//-------------------------------------------------------------------------
//
//
//-------------------------------------------------------------------------
void MouseTrailer::SetCaptureWindow(HWND aWnd)
{
mCaptureWindow = aWnd;
if (mCaptureWindow) {
mIsInCaptureMode = true;
}
}
//-------------------------------------------------------------------------
//
//
//-------------------------------------------------------------------------
nsresult MouseTrailer::CreateTimer()
{
if (mTimer || !mEnabled) {
return NS_OK;
}
nsresult rv;
mTimer = do_CreateInstance("@mozilla.org/timer;1", &rv);
NS_ENSURE_SUCCESS(rv, rv);
return mTimer->InitWithFuncCallback(TimerProc, nsnull, 200,
nsITimer::TYPE_REPEATING_SLACK);
}
//-------------------------------------------------------------------------
//
//
//-------------------------------------------------------------------------
void MouseTrailer::DestroyTimer()
{
if (mTimer) {
mTimer->Cancel();
mTimer = nsnull;
}
}
//-------------------------------------------------------------------------
//
//
//-------------------------------------------------------------------------
void MouseTrailer::TimerProc(nsITimer* aTimer, void* aClosure)
{
MouseTrailer *mtrailer = nsToolkit::gMouseTrailer;
NS_ASSERTION(mtrailer, "MouseTrailer still firing after deletion!");
// Check to see if we are in mouse capture mode,
// Once capture ends we could still get back one more timer event.
// Capture could end outside our window.
// Also, for some reason when the mouse is on the frame it thinks that
// it is inside the window that is being captured.
if (mtrailer->mCaptureWindow) {
if (mtrailer->mCaptureWindow != mtrailer->mMouseTrailerWindow) {
return;
}
} else {
if (mtrailer->mIsInCaptureMode) {
// mMouseTrailerWindow could be bad from rolling over the frame, so clear
// it if we were capturing and now this is the first timer callback
// since we canceled the capture
mtrailer->mMouseTrailerWindow = nsnull;
mtrailer->mIsInCaptureMode = false;
return;
}
}
if (mtrailer->mMouseTrailerWindow && ::IsWindow(mtrailer->mMouseTrailerWindow)) {
POINT mp;
DWORD pos = ::GetMessagePos();
mp.x = GET_X_LPARAM(pos);
mp.y = GET_Y_LPARAM(pos);
HWND mouseWnd = ::WindowFromPoint(mp);
if (mtrailer->mMouseTrailerWindow != mouseWnd) {
// Notify someone that a mouse exit happened.
PostMessage(mtrailer->mMouseTrailerWindow, WM_MOUSELEAVE, 0, 0);
// we are out of this window, destroy timer
mtrailer->DestroyTimer();
mtrailer->mMouseTrailerWindow = nsnull;
}
} else {
mtrailer->DestroyTimer();
mtrailer->mMouseTrailerWindow = nsnull;
}
}