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/****************************************************************************
**
** Copyright (C) 2003-2008 Trolltech ASA. All rights reserved.
**
** This file is part of a Qt Solutions component.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of
** this file. Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
** http://www.trolltech.com/products/qt/opensource.html
**
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://www.trolltech.com/products/qt/licensing.html or contact the
** Trolltech sales department at sales@trolltech.com.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/
#include <QtGui>
#include "qtbrowserplugin.h"
#include "qtbrowserplugin_p.h"
#include <windows.h>
#include "qtnpapi.h"
static HHOOK hhook = 0;
static bool ownsqapp = false;
Q_GUI_EXPORT int qt_translateKeyCode(int);
LRESULT CALLBACK FilterProc( int nCode, WPARAM wParam, LPARAM lParam )
{
if (qApp)
qApp->sendPostedEvents(0, -1);
if (nCode < 0 || !(wParam & PM_REMOVE))
return CallNextHookEx(hhook, nCode, wParam, lParam);
MSG *msg = (MSG*)lParam;
bool processed = false;
// (some) support for key-sequences via QAction and QShortcut
if(msg->message == WM_KEYDOWN || msg->message == WM_SYSKEYDOWN) {
QWidget *focusWidget = QWidget::find(msg->hwnd);
if (focusWidget) {
int key = msg->wParam;
if (!(key >= 'A' && key <= 'Z') && !(key >= '0' && key <= '9'))
key = qt_translateKeyCode(msg->wParam);
Qt::KeyboardModifiers modifiers = 0;
int modifierKey = 0;
if (GetKeyState(VK_SHIFT) < 0) {
modifierKey |= Qt::SHIFT;
modifiers |= Qt::ShiftModifier;
}
if (GetKeyState(VK_CONTROL) < 0) {
modifierKey |= Qt::CTRL;
modifiers |= Qt::ControlModifier;
}
if (GetKeyState(VK_MENU) < 0) {
modifierKey |= Qt::ALT;
modifiers |= Qt::AltModifier;
}
QKeyEvent override(QEvent::ShortcutOverride, key, modifiers);
override.ignore();
QApplication::sendEvent(focusWidget, &override);
processed = override.isAccepted();
QKeySequence shortcutKey(modifierKey + key);
if (!processed) {
QList<QAction*> actions = qFindChildren<QAction*>(focusWidget->window());
for (int i = 0; i < actions.count() && !processed; ++i) {
QAction *action = actions.at(i);
if (!action->isEnabled() || action->shortcut() != shortcutKey)
continue;
QShortcutEvent event(shortcutKey, 0);
processed = QApplication::sendEvent(action, &event);
}
}
if (!processed) {
QList<QShortcut*> shortcuts = qFindChildren<QShortcut*>(focusWidget->window());
for (int i = 0; i < shortcuts.count() && !processed; ++i) {
QShortcut *shortcut = shortcuts.at(i);
if (!shortcut->isEnabled() || shortcut->key() != shortcutKey)
continue;
QShortcutEvent event(shortcutKey, shortcut->id());
processed = QApplication::sendEvent(shortcut, &event);
}
}
}
}
return CallNextHookEx(hhook, nCode, wParam, lParam);
}
extern "C" bool qtns_event(QtNPInstance *, NPEvent *)
{
return false;
}
extern Q_CORE_EXPORT void qWinMsgHandler(QtMsgType t, const char* str);
extern "C" void qtns_initialize(QtNPInstance*)
{
if (!qApp) {
qInstallMsgHandler(qWinMsgHandler);
ownsqapp = true;
static int argc=0;
static char **argv={ 0 };
(void)new QApplication(argc, argv);
QT_WA({
hhook = SetWindowsHookExW( WH_GETMESSAGE, FilterProc, 0, GetCurrentThreadId() );
}, {
hhook = SetWindowsHookExA( WH_GETMESSAGE, FilterProc, 0, GetCurrentThreadId() );
});
}
}
extern "C" void qtns_destroy(QtNPInstance *)
{
}
extern "C" void qtns_shutdown()
{
if (!ownsqapp)
return;
// check if qApp still runs widgets (in other DLLs)
QWidgetList widgets = qApp->allWidgets();
int count = widgets.count();
for (int w = 0; w < widgets.count(); ++w) {
// ignore all Qt generated widgets
QWidget *widget = widgets.at(w);
if (widget->windowFlags() & Qt::Desktop)
count--;
}
if (count) // qApp still used
return;
delete qApp;
ownsqapp = false;
if ( hhook )
UnhookWindowsHookEx( hhook );
hhook = 0;
}
extern "C" void qtns_embed(QtNPInstance *This)
{
Q_ASSERT(qobject_cast<QWidget*>(This->qt.object));
LONG oldLong = GetWindowLong(This->window, GWL_STYLE);
::SetWindowLong(This->window, GWL_STYLE, oldLong | WS_CLIPCHILDREN | WS_CLIPSIBLINGS);
::SetWindowLong(This->qt.widget->winId(), GWL_STYLE, WS_CHILD | WS_CLIPCHILDREN | WS_CLIPSIBLINGS);
::SetParent(This->qt.widget->winId(), This->window);
}
extern "C" void qtns_setGeometry(QtNPInstance *This, const QRect &rect, const QRect &)
{
Q_ASSERT(qobject_cast<QWidget*>(This->qt.object));
This->qt.widget->setGeometry(QRect(0, 0, rect.width(), rect.height()));
}
/*
extern "C" void qtns_print(QtNPInstance * This, NPPrint *printInfo)
{
NPWindow* printWindow = &(printInfo->print.embedPrint.window);
void* platformPrint = printInfo->print.embedPrint.platformPrint;
// #### Nothing yet.
}
*/
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