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Diffstat (limited to 'tqtinterface/qt4/extensions/nsplugin/src/qnp.cpp')
| -rw-r--r-- | tqtinterface/qt4/extensions/nsplugin/src/qnp.cpp | 2071 |
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diff --git a/tqtinterface/qt4/extensions/nsplugin/src/qnp.cpp b/tqtinterface/qt4/extensions/nsplugin/src/qnp.cpp deleted file mode 100644 index 1efb75b..0000000 --- a/tqtinterface/qt4/extensions/nsplugin/src/qnp.cpp +++ /dev/null @@ -1,2071 +0,0 @@ -/**************************************************************************** -** -** Implementation of TQt extension classes for Netscape Plugin support. -** -** Created : 970601 -** -** Copyright (C) 2010 Timothy Pearson and (C) 1992-2008 Trolltech ASA. -** -** This file is part of the TQt GUI Toolkit. -** -** This file may be used under the terms of the GNU General -** Public License versions 2.0 or 3.0 as published by the Free -** Software Foundation and appearing in the files LICENSE.GPL2 -** and LICENSE.GPL3 included in the packaging of this file. -** Alternatively you may (at your option) use any later version -** of the GNU General Public License if such license has been -** publicly approved by Trolltech ASA (or its successors, if any) -** and the KDE Free TQt Foundation. -** -** Please review the following information to ensure GNU General -** Public Licensing requirements will be met: -** http://trolltech.com/products/qt/licenses/licensing/opensource/. -** If you are unsure which license is appropriate for your use, please -** review the following information: -** http://trolltech.com/products/qt/licenses/licensing/licensingoverview -** or contact the sales department at [email protected]. -** -** This file may be used under the terms of the Q Public License as -** defined by Trolltech ASA and appearing in the file LICENSE.TQPL -** included in the packaging of this file. Licensees holding valid TQt -** Commercial licenses may use this file in accordance with the TQt -** Commercial License Agreement provided with the Software. -** -** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, -** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted -** herein. -** -**********************************************************************/ - - -// Remaining TQ_WS_X11 considerations: -// - What if !piApp upon NPP_NewStream? Are we safe? -// - Yes, but users need to know of this: that no GUI can be -// done until after setWindow is called. -// - Use NPN_GetValue in Communicator4.0 to get the display earlier! -// - For ClientMessage events, trap them, and if they are not for us, -// untrap them and retransmit them and set a timer to retrap them -// after N seconds. - -// Remaining TQ_WS_WIN considerations: -// - we need to activateZeroTimers() at some time. -// - we need to call winEventFilter on events -// - timers: -// if ( msg.message == WM_TIMER ) { // timer message received -// activateTimer( msg.wParam ); -// return TRUE; -// } -// if ( msg.message == WM_KEYDOWN || msg.message == WM_KEYUP ) { -// if ( translateKeyCode(msg.wParam) == 0 ) { -// TranslateMessage( &msg ); // translate to WM_CHAR -// return TRUE; -// } -// } -// - qWinProcessConfigRequests? - -// Remaining general stuff: -// - Provide the "reason" parameter to streamDestroyed - -// TQt stuff -#include <tqapplication.h> -#include <tqeventloop.h> -#include <tqwidget.h> -#include <tqobjectlist.h> -#include <tqcursor.h> -#include <tqprinter.h> -#include <tqfile.h> -#include <tqpainter.h> - -#include "tqnp.h" - -#include <stdlib.h> // Must be here for Borland C++ -#include <stdio.h> -#include <string.h> -#include <time.h> -#include <limits.h> - -#ifdef TQ_WS_X11 -#include <X11/Intrinsic.h> - -class TQNPXtPrivate; - -class TQNPXt : public TQEventLoop -{ -public: - TQNPXt( const char *applicationClass, XtAppContext context = NULL, XrmOptionDescRec *options = 0, int numOptions = 0); - ~TQNPXt(); - - XtAppContext applicationContext() const; - - void registerSocketNotifier( TQSocketNotifier * ); - void unregisterSocketNotifier( TQSocketNotifier * ); - - static void registerWidget( TQWidget* ); - static void unregisterWidget( TQWidget* ); - static bool redeliverEvent( XEvent *event ); - static XEvent* lastEvent(); - -protected: - bool processEvents( ProcessEventsFlags flags ); - -private: - void appStartingUp(); - void appClosingDown(); - TQNPXtPrivate *d; - -}; - -#define GC GC_TQQQ -#endif - -extern "C" { -// -// Netscape plugin API -// -#ifdef TQ_WS_WIN -#ifndef _WINDOWS -#define _WINDOWS -#endif -#endif -#ifdef TQ_WS_X11 -#define XP_UNIX -#endif - - -// This is to allow mingw support on windows without altering the sun header files -#if defined(TQ_CC_GNU) && defined(TQ_WS_WIN) && !defined(_MSC_VER) -#define _MSC_VER 1 -#include "npapi.h" -#undef _MSC_VER -#else -#include "npapi.h" -#endif - -#ifdef TQ_WS_X11 -#undef XP_UNIX -#include "npunix.c" -#endif - -// -// Stuff for the NPP_SetWindow function: -// -#ifdef TQ_WS_X11 -#include <X11/Xlib.h> -#include <X11/Intrinsic.h> -#include <X11/IntrinsicP.h> // for XtCreateWindow -#include <X11/Shell.h> -#include <X11/StringDefs.h> -#include <X11/Xutil.h> -#include <X11/Xos.h> -//#include <dlfcn.h> -#endif -#ifdef TQ_WS_WIN -#include <windows.h> -#endif -} - -#ifdef TQ_WS_WIN -#include "npwin.cpp" -#endif - -static TQEventLoop* event_loop = 0; -static TQApplication* application = 0; - -struct _NPInstance -{ - uint16 fMode; - -#ifdef TQ_WS_WIN - HWND window; -#endif - - NPP npp; - -#ifdef TQ_WS_X11 - Window window; - Display *display; -#endif - - uint32 x, y; - uint32 width, height; - - TQNPWidget* widget; - TQNPInstance* instance; - - int16 argc; - TQString *argn; - TQString *argv; -}; - - - -// The single global plugin -static TQNPlugin *qNP=0; -static int instance_count=0; - -// Temporary parameter passed `around the side' of calls to user functions -static _NPInstance* next_pi=0; - -// To avoid looping when browser OR plugin can delete streams -static int qnps_no_call_back = 0; - -#ifdef TQ_WS_WIN -// defined in qapplication_win.cpp -TQ_EXPORT extern bool qt_win_use_simple_timers; -TQ_EXPORT void qWinProcessConfigRequests(); -static HHOOK hhook = 0; - -LRESULT CALLBACK FilterProc( int nCode, WPARAM wParam, LPARAM lParam ) -{ - if ( tqApp ) { - tqApp->sendPostedEvents(); - tqApp->eventLoop()->activateSocketNotifiers(); - qWinProcessConfigRequests(); - } - - return CallNextHookEx( hhook, nCode, wParam, lParam ); -} - -#endif - -#ifdef TQ_WS_X11 -static int (*original_x_errhandler)( Display *dpy, XErrorEvent * ) = 0; -static int dummy_x_errhandler( Display *, XErrorEvent * ) -{ - return 0; -} -#endif - -/****************************************************************************** - * Plug-in Calls - these are called by Netscape - *****************************************************************************/ - - -// Instance state information about the plugin. - -#ifdef TQ_WS_X11 - -extern "C" char* -NPP_GetMIMEDescription(void) -{ - if (!qNP) qNP = TQNPlugin::create(); - return (char*)qNP->getMIMEDescription(); -} - - - -extern "C" NPError -NPP_GetValue(void * /*future*/, NPPVariable variable, void *value) -{ - if (!qNP) qNP = TQNPlugin::create(); - NPError err = NPERR_NO_ERROR; - if (variable == NPPVpluginNameString) - *((const char **)value) = qNP->getPluginNameString(); - else if (variable == NPPVpluginDescriptionString) - *((const char **)value) = qNP->getPluginDescriptionString(); - else - err = NPERR_GENERIC_ERROR; - - return err; -} - -#endif - -/* -** NPP_Initialize is called when your DLL is being loaded to do any -** DLL-specific initialization. -*/ -extern "C" NPError -NPP_Initialize(void) -{ -#ifdef TQ_WS_WIN - qt_win_use_simple_timers = TRUE; - // Nothing more - we do it in DLLMain -#endif - - if (!qNP) qNP = TQNPlugin::create(); - return NPERR_NO_ERROR; -} - -static jref plugin_java_class = 0; - -/* -** NPP_GetJavaClass is called during initialization to ask your plugin -** what its associated Java class is. If you don't have one, just return -** NULL. Otherwise, use the javah-generated "use_" function to both -** initialize your class and return it. If you can't find your class, an -** error will be signalled by "use_" and will cause the Navigator to -** complain to the user. -*/ -extern "C" jref -NPP_GetJavaClass(void) -{ - if (!qNP) qNP = TQNPlugin::create(); - plugin_java_class = (jref)qNP->getJavaClass(); - return plugin_java_class; -} - -/* -** NPP_Shutdown is called when your DLL is being unloaded to do any -** DLL-specific shut-down. You should be a good citizen and declare that -** you're not using your java class any more. This allows java to unload -** it, freeing up memory. -*/ -extern "C" void -NPP_Shutdown(void) -{ - if (qNP) { - if (plugin_java_class) - qNP->unuseJavaClass(); - delete qNP; - qNP = 0; - } - -#ifdef TQ_WS_X11 - if ( original_x_errhandler ) - XSetErrorHandler( original_x_errhandler ); -#endif - if ( tqApp) { -#ifdef TQ_WS_WIN32 - if ( hhook ) - UnhookWindowsHookEx( hhook ); - hhook = 0; -#endif - delete application; - delete event_loop; - } - -} - - -struct NS_Private { - uchar* a; - uchar* b; -}; - -/* -** NPP_New is called when your plugin is instantiated (i.e. when an EMBED -** tag appears on a page). -*/ -extern "C" NPError -NPP_New(NPMIMEType /*pluginType*/, - NPP instance, - uint16 mode, - int16 argc, - char* argn[], - char* argv[], - NPSavedData* /*saved*/) -{ - NPError result = NPERR_NO_ERROR; - _NPInstance* This; - - if (instance == NULL) - return NPERR_INVALID_INSTANCE_ERROR; - - instance->pdata = new _NPInstance; - - This = (_NPInstance*) instance->pdata; - - if (This == NULL) - return NPERR_OUT_OF_MEMORY_ERROR; - - This->npp = instance; - - /* mode is NP_EMBED, NP_FULL, or NP_BACKGROUND (see npapi.h) */ - This->fMode = mode; - - This->window = 0; - This->widget = 0; - - This->argc = argc; - This->argn = new TQString[argc+1]; - This->argv = new TQString[argc+1]; - for (int i=0; i<This->argc; i++) { - This->argn[i] = argn[i]; - This->argv[i] = argv[i]; - } - - // Everything is set up - we can let TQNPInstance be created now. - next_pi = This; - qNP->newInstance(); - instance_count++; - - return result; -} - -extern "C" NPError -NPP_Destroy(NPP instance, NPSavedData** /*save*/) -{ - _NPInstance* This; - - if (instance == NULL) - return NPERR_INVALID_INSTANCE_ERROR; - - This = (_NPInstance*) instance->pdata; - - if (This != NULL) { - delete This->widget; - delete This->instance; - delete [] This->argn; - delete [] This->argv; - - delete This; - instance->pdata = NULL; - - instance_count--; - } - - return NPERR_NO_ERROR; -} - -extern "C" NPError -NPP_SetWindow(NPP instance, NPWindow* window) -{ - if (!qNP) qNP = TQNPlugin::create(); - NPError result = NPERR_NO_ERROR; - _NPInstance* This; - - if (instance == NULL) - return NPERR_INVALID_INSTANCE_ERROR; - - This = (_NPInstance*) instance->pdata; - - - // take a shortcut if all that was changed is the tqgeometry - if ( This->widget && window -#ifdef TQ_WS_X11 - && This->window == (Window) window->window -#endif -#ifdef TQ_WS_WIN - && This->window == (HWND) window->window -#endif - ) { - This->x = window->x; - This->y = window->y; - This->width = window->width; - This->height = window->height; - This->widget->resize( This->width, This->height ); - return result; - } - - delete This->widget; - - if ( !window ) - return result; - -#ifdef TQ_WS_X11 - This->window = (Window) window->window; - This->display = - ((NPSetWindowCallbackStruct *)window->ws_info)->display; -#endif -#ifdef TQ_WS_WIN - This->window = (HWND) window->window; -#endif - - This->x = window->x; - This->y = window->y; - This->width = window->width; - This->height = window->height; - - - if (!tqApp) { -#ifdef TQ_WS_X11 - // We are the first TQt-based plugin to arrive - event_loop = new TQNPXt( "qnp", XtDisplayToApplicationContext(This->display) ); - application = new TQApplication(This->display); -#endif -#ifdef TQ_WS_WIN - static int argc=0; - static char **argv={ 0 }; - application = new TQApplication( argc, argv ); -#ifdef UNICODE - if ( qWinVersion() & TQt::WV_NT_based ) - hhook = SetWindowsHookExW( WH_GETMESSAGE, FilterProc, 0, GetCurrentThreadId() ); - else -#endif - hhook = SetWindowsHookExA( WH_GETMESSAGE, FilterProc, 0, GetCurrentThreadId() ); -#endif - } - -#ifdef TQ_WS_X11 - if ( !original_x_errhandler ) - original_x_errhandler = XSetErrorHandler( dummy_x_errhandler ); -#endif - - // New widget on this new window. - next_pi = This; - /* This->widget = */ // (happens sooner - in TQNPWidget constructor) - This->instance->newWindow(); - - if ( !This->widget ) - return result; - -#ifdef TQ_WS_X11 - This->widget->resize( This->width, This->height ); - XReparentWindow( This->widget->x11Display(), This->widget->winId(), This->window, 0, 0 ); - XSync( This->widget->x11Display(), False ); -#endif -#ifdef TQ_WS_WIN - LONG oldLong = GetWindowLong(This->window, GWL_STYLE); - ::SetWindowLong(This->window, GWL_STYLE, oldLong | WS_CLIPCHILDREN | WS_CLIPSIBLINGS); - ::SetWindowLong( This->widget->winId(), GWL_STYLE, WS_CHILD | WS_CLIPCHILDREN | WS_CLIPSIBLINGS ); - ::SetParent( This->widget->winId(), This->window ); - This->widget->raise(); - This->widget->setGeometry( 0, 0, This->width, This->height ); -#endif - This->widget->show(); - return result; -} - - -extern "C" NPError -NPP_NewStream(NPP instance, - NPMIMEType type, - NPStream *stream, - NPBool seekable, - uint16 *stype) -{ - _NPInstance* This; - - if (instance == NULL) - return NPERR_INVALID_INSTANCE_ERROR; - - This = (_NPInstance*) instance->pdata; - - if ( This ) { - TQNPStream* qnps = new TQNPStream(This->instance,type,stream,seekable); - stream->pdata = qnps; - TQNPInstance::StreamMode sm = (TQNPInstance::StreamMode)*stype; - if (!This->instance->newStreamCreated(qnps, sm)) { - return NPERR_GENERIC_ERROR; - } - *stype = sm; - } - - return NPERR_NO_ERROR; -} - - -int32 STREAMBUFSIZE = 0X0FFFFFFF; /* If we are reading from a file in NPAsFile - * mode so we can take any size stream in our - * write call (since we ignore it) */ - -extern "C" int32 -NPP_WriteReady(NPP instance, NPStream *stream) -{ - _NPInstance* This; - if (instance != NULL) { - This = (_NPInstance*) instance->pdata; - } else { - // Yikes, that's unusual! - return 0; - } - - if (This) { - return This->instance->writeReady((TQNPStream*)stream->pdata); - } - - /* Number of bytes ready to accept in NPP_Write() */ - return STREAMBUFSIZE; -} - - -extern "C" int32 -NPP_Write(NPP instance, NPStream *stream, int32 offset, int32 len, void *buffer) -{ - if (instance != NULL) - { - _NPInstance* This = (_NPInstance*) instance->pdata; - - if (This) { - return This->instance->write((TQNPStream*)stream->pdata, - offset, len, buffer); - } - } - - return len; /* The number of bytes accepted */ -} - - -extern "C" NPError -NPP_DestroyStream(NPP instance, NPStream *stream, NPError reason) -{ - _NPInstance* This; - - if (instance == NULL) - return NPERR_INVALID_INSTANCE_ERROR; - - if (!qnps_no_call_back) { - This = (_NPInstance*) instance->pdata; - - TQNPStream* qnps = (TQNPStream*)stream->pdata; - if ( qnps ) - switch (reason) { - case NPRES_DONE: - qnps->setComplete(TRUE); - break; - case NPRES_USER_BREAK: - break; - case NPRES_NETWORK_ERR: - qnps->setOkay(FALSE); - break; - } - - if (This) { - // Give the instance a chance to do something - This->instance->streamDestroyed(qnps); - } - - qnps_no_call_back++; - delete qnps; - qnps_no_call_back--; - } - - return NPERR_NO_ERROR; -} - - -extern "C" void -NPP_StreamAsFile(NPP instance, NPStream *stream, const char* fname) -{ - _NPInstance* This; - - if (instance == NULL) return; - - This = (_NPInstance*) instance->pdata; - - if ( This ) { - TQNPStream* qnps = (TQNPStream*)stream->pdata; - This->instance->streamAsFile(qnps, fname); - } -} - -typedef struct -{ - int32 type; - FILE* fp; -} NPPrintCallbackStruct; - -#ifdef TQ_WS_X11 - -class TQNPPrinter : public TQPrinter { - TQFile file; -public: - TQNPPrinter(FILE* fp) - { - file.open(IO_WriteOnly, fp); - TQPDevCmdParam param; - param.tqdevice = &file; - cmd(PdcSetdev, 0, ¶m); - } - void end() - { - TQPDevCmdParam param; - param.tqdevice = 0; - cmd(PdcSetdev, 0, ¶m); - } -}; -#endif - -extern "C" void -NPP_Print(NPP instance, NPPrint* printInfo) -{ - if(printInfo == NULL) - return; - - if (instance != NULL) { - _NPInstance* This = (_NPInstance*) instance->pdata; - - if (printInfo->mode == NP_FULL) { - printInfo->print.fullPrint.pluginPrinted = - This->instance->printFullPage(); - } else if (printInfo->mode == NP_EMBED) { -#ifdef TQ_WS_X11 - void* platformPrint = - printInfo->print.embedPrint.platformPrint; - FILE* outfile = ((NPPrintCallbackStruct*)platformPrint)->fp; - if (ftell(outfile)) { -// NPWindow* w = -// &(printInfo->print.embedPrint.window); - TQNPPrinter prn(outfile); - TQPainter painter(&prn); - // #### config viewport with w->{x,y,width,height} - This->instance->print(&painter); - prn.end(); - } else { - // Why does the browser make spurious NPP_Print calls? - } -#endif -#ifdef TQ_WS_WIN - NPWindow* printWindow = - &(printInfo->print.embedPrint.window); - void* platformPrint = - printInfo->print.embedPrint.platformPrint; - // #### Nothing yet. -#endif - } - } -} - -extern "C" void -NPP_URLNotify(NPP instance, - const char* url, - NPReason reason, - void* notifyData) -{ - if (instance != NULL) { - TQNPInstance::Reason r; - switch (reason) { - case NPRES_DONE: - r = TQNPInstance::ReasonDone; - break; - case NPRES_USER_BREAK: - r = TQNPInstance::ReasonBreak; - break; - case NPRES_NETWORK_ERR: - r = TQNPInstance::ReasonError; - break; - default: - r = TQNPInstance::ReasonUnknown; - break; - } - _NPInstance* This = (_NPInstance*) instance->pdata; - This->instance->notifyURL(url, r, notifyData); - } -} - - - -#ifdef TQ_WS_WIN - -BOOL WINAPI DllMain (HANDLE hInst, - ULONG ul_reason_for_call, - LPVOID lpReserved) -{ - return TRUE; -} - -#endif - - - -/*! - \class TQNPWidget tqnp.h - \brief The TQNPWidget class provides a TQWidget that is a web browser plugin window. - - \extension Netscape Plugin - - Derive from TQNPWidget to create a widget that can be used as a - web browser plugin window, or create one and add child widgets. - Instances of TQNPWidget may only be created when - TQNPInstance::newWindow() is called by the browser. - - A common way to develop a plugin widget is to develop it as a - stand-alone application window, then make it a \e child of a - plugin widget to use it as a browser plugin. The technique is: - -\code -class MyPluginWindow : public TQNPWidget -{ - TQWidget* child; -public: - MyPluginWindow() - { - // Some widget that is normally used as a top-level widget - child = new MyIndependentlyDevelopedWidget(); - - // Use the background color of the web page - child->setBackgroundColor( backgroundColor() ); - - // Fill the plugin widget - child->setGeometry( 0, 0, width(), height() ); - } - - void resizeEvent(TQResizeEvent*) - { - // Fill the plugin widget - child->resize(size()); - } -}; -\endcode - - The default implementation is an empty window. -*/ - -/*! - Creates a TQNPWidget. -*/ -TQNPWidget::TQNPWidget() : - pi(next_pi) -{ - if (!next_pi) { - qFatal("TQNPWidget must only be created within call to newWindow"); - } - next_pi->widget = this; - next_pi = 0; - -#ifdef TQ_WS_WIN - clearWFlags( WStyle_NormalBorder | WStyle_Title | WStyle_MinMax | WStyle_SysMenu ); - topData()->ftop = 0; - topData()->fright = 0; - topData()->fleft = 0; - topData()->fbottom = 0; -#endif -} - -/*! - Destroys the window. This will be called by the plugin binding - code when the window is no longer required. The web browser will - delete windows when they leave the page. The bindings will change - the TQWidget::winId() of the window when the window is resized, but - this should not affect normal widget behavior. -*/ -TQNPWidget::~TQNPWidget() -{ -#ifdef TQ_WS_X11 - destroy( FALSE, FALSE ); // X has destroyed all windows -#endif -} - - -/*!\internal */ -void TQNPWidget::enterEvent(TQEvent*) -{ - enterInstance(); -} - -/*!\internal */ -void TQNPWidget:: leaveEvent(TQEvent*) -{ - if ( !TQApplication::activePopupWidget() ) - leaveInstance(); -} - -/*! - Called when the mouse enters the plugin window. Does nothing by - default. -*/ -void TQNPWidget::enterInstance() -{ -} - -/*! - Called when the mouse leaves the plugin window. Does nothing by - default. -*/ -void TQNPWidget::leaveInstance() -{ -} - -/*! - Returns the instance for which this widget is the plugin window. -*/ -TQNPInstance* TQNPWidget::instance() -{ - return pi->instance; -} - - - - - -/*! - \class TQNPInstance tqnp.h - \brief The TQNPInstance class provides a TQObject that is a web browser plugin. - - \extension Netscape Plugin - - Deriving from TQNPInstance creates an object that represents a - single \c{<EMBED>} tag in an HTML document. - - The TQNPInstance is responsible for creating an appropriate - TQNPWidget window if required (not all plugins have windows), and - for interacting with the input/output facilities intrinsic to - plugins. - - Note that there is \e{absolutely no guarantee} regarding the order - in which functions are called. Sometimes the browser will call - newWindow() first, at other times, newStreamCreated() will be - called first (assuming the \c{<EMBED>} tag has a SRC parameter). - - \e{None of TQt's GUI functionality} may be used until after the - first call to newWindow(). This includes any use of TQPaintDevice - (i.e. TQPixmap, TQWidget, and all subclasses), TQApplication, anything - related to TQPainter (TQBrush, etc.), fonts, TQMovie, TQToolTip, etc. - Useful classes which specifically \e can be used are TQImage, - TQFile, and TQBuffer. - - This restriction can easily be accommodated by structuring your - plugin so that the task of the TQNPInstance is to gather data, - while the task of the TQNPWidget is to provide a graphical - interface to that data. -*/ - -/*! - \enum TQNPInstance::InstanceMode - - This enum type provides TQt-style names for three #defines in - \c npapi.h: - - \value Embed - corresponds to NP_EMBED - \value Full - corresponds to NP_FULL - \value Background - corresponds to NP_BACKGROUND - -*/ - -/*! - \enum TQNPInstance::Reason - - \value ReasonDone - \value ReasonBreak - \value ReasonError - \value ReasonUnknown -*/ - -/*! - \enum TQNPInstance::StreamMode - - \value Normal - \value Seek - \value AsFile - \value AsFileOnly -*/ - -/*! - Creates a TQNPInstance. - - Can only be called from within a derived class created within - TQNPlugin::newInstance(). -*/ -TQNPInstance::TQNPInstance() : - pi(next_pi) -{ - if (!next_pi) { - qFatal("TQNPInstance must only be created within call to newInstance"); - } - next_pi->instance = this; - next_pi = 0; -} - -/*! - Called when the plugin instance is about to be deleted. -*/ -TQNPInstance::~TQNPInstance() -{ -} - -/*! - Called at most once, at some time after the TQNPInstance is - created. If the plugin requires a window, this function should - return a derived class of TQNPWidget that provides the required - interface. -*/ -TQNPWidget* TQNPInstance::newWindow() -{ - // No window by default - next_pi = 0; - return 0; -} - -/*! - Returns the plugin window created by newWindow(), if any. -*/ -TQNPWidget* TQNPInstance::widget() -{ - return pi->widget; -} - -/*! - \fn bool TQNPInstance::newStreamCreated(TQNPStream*, StreamMode& smode) - - This function is called when a new stream has been created. The - instance should return TRUE if it accepts the processing of the - stream. If the instance requires the stream as a file, it should - set \a smode to \c AsFileOnly, in which case the data will be - delivered some time later to the streamAsFile() function. - Otherwise, the data will be delivered in chunks to the write() - function, which must consume at least as much data as returned - by the most recent call to writeReady(). - - Note that the \c AsFileOnly method is not supported by Netscape - 2.0 and MSIE 3.0. - - The default implementation accepts any stream. -*/ -bool TQNPInstance::newStreamCreated(TQNPStream*, StreamMode&) -{ - return TRUE; -} - -/*! - Called when a stream is delivered as a single file called \a fname - rather than as chunks. This may be simpler for a plugin to deal - with, but precludes any incremental behavior. - - Note that the \c AsFileOnly method is not supported by Netscape - 2.0 and MSIE 3.0. - - \sa newStreamCreated(), newStream() -*/ -void TQNPInstance::streamAsFile(TQNPStream*, const char* fname) -{ -} - -/*! - Called when a stream is destroyed. At this point, the stream may - be complete() and okay(). If it is not okay(), then an error has - occurred. If it is okay(), but not complete(), then the user has - cancelled the transmission; do not give an error message in this - case. -*/ -void TQNPInstance::streamDestroyed(TQNPStream*) -{ -} - -/*! - Returns the minimum amount of data the instance is willing to - receive from the given stream. - - The default returns a very large value. -*/ -int TQNPInstance::writeReady(TQNPStream*) -{ - // Yes, we can handle any amount of data at once. - return 0X0FFFFFFF; -} - -/*! - \fn int TQNPInstance::write(TQNPStream*, int offset, int len, void* buffer) - - Called when incoming data is available for processing by the - instance. The instance \e must consume at least the amount that it - returned in the most recent call to writeReady(), but it may - consume up to the amount given by \a len. \a buffer is the data - available for consumption. The \a offset argument is merely an - informational value indicating the total amount of data that has - been consumed in prior calls. - - This function should return the amount of data actually consumed. -*/ -int TQNPInstance::write(TQNPStream*, int, int len, void*) -{ - // Yes, we processed it all... into the bit bucket. - return len; -} - -/*! - Requests that the \a url be retrieved and sent to the named \a - window. See Netscape's JavaScript documentation for an explanation - of window names. -*/ -void TQNPInstance::getURL(const char* url, const char* window) -{ - NPN_GetURL( pi->npp, url, window ); -} - -/*! - \preliminary - - This function is \e{not tested}. - - It is an interface to the NPN_PostURL function of the Netscape - Plugin API. - - Passes \a url, \a window, \a buf, \a len, and \a file to - NPN_PostURL. -*/ -void TQNPInstance::postURL(const char* url, const char* window, - uint len, const char* buf, bool file) -{ - NPN_PostURL( pi->npp, url, window, len, buf, file ); -} - -/*! - Requests that the given \a url be retrieved and sent to - the named \a window. See Netscape's JavaScript documentation for - an explanation of window names. Passes the arguments including \a - data to NPN_GetURLNotify. - - \sa - \link http://developer.netscape.com/docs/manuals/communicator/plugin/refpgur.htm#npngeturlnotify - Netscape: NPN_GetURLNotify method\endlink -*/ -void TQNPInstance::getURLNotify(const char* url, const char* window, void*data) -{ -#ifdef TQ_WS_WIN // Only on Windows? - NPN_GetURLNotify( pi->npp, url, window, data ); -#else - TQ_UNUSED( url ); - TQ_UNUSED( window ); - TQ_UNUSED( data ); -#endif -} - -/*! - \preliminary - - This function is \e{not tested}. - - It is an encapsulation of the NPP_Print function of the Netscape - Plugin API. -*/ -bool TQNPInstance::printFullPage() -{ - return FALSE; -} - -/*! - \preliminary - - This function is \e{not tested}. - - Print the instance embedded in a page. - - It is an encapsulation of the NPP_Print function of the Netscape - Plugin API. -*/ -void TQNPInstance::print(TQPainter*) -{ - // ### default could redirected-print the window. -} - -/*! - Returns the number of arguments to the instance. Note that you - should not normally rely on the ordering of arguments, and - note that the SGML specification does not permit multiple - arguments with the same name. - - \sa arg(), argn() -*/ -int TQNPInstance::argc() const -{ - return pi->argc; -} - -/*! - Returns the name of the \a{i}-th argument. - - \sa argc(), argv() -*/ -const char* TQNPInstance::argn(int i) const -{ - return pi->argn[i]; -} - -/*! - \preliminary - - This function is \e{not tested}. - - Called whenever a \a url is notified after a call to - NPN_GetURLNotify with \a notifyData. The reason is given in \a r. - - It is an encapsulation of the NPP_URLNotify function of the - Netscape Plugin API. - - See also: - \link http://developer.netscape.com/docs/manuals/communicator/plugin/refpgur.htm#nppurlnotify - Netscape: NPP_URLNotify method\endlink -*/ -void TQNPInstance::notifyURL(const char*, Reason, void*) -{ -} - -/*! - Returns the value of the \a{i}-th argument. - - \as argc(), arg() -*/ -const char* TQNPInstance::argv(int i) const -{ - return pi->argv[i]; -} - -/*! - Returns the mode of the plugin. -*/ -TQNPInstance::InstanceMode TQNPInstance::mode() const -{ - return (TQNPInstance::InstanceMode)pi->fMode; -} - -/*! - Returns the value of the named arguments, or 0 if no argument - called \a name appears in the \c{<EMBED>} tag of this instance. - If the argument appears, but has no value assigned, the empty - string is returned. In summary: - - \table - \header \i Tag \i Result - \row \i \c{<EMBED ...>} \i arg("FOO") == 0 - \row \i \c{<EMBED FOO ...>} \i arg("FOO") == "" - \row \i \c{<EMBED FOO=BAR ...>} \i arg("FOO") == "BAR" - \endtable -*/ -const char* TQNPInstance::arg(const char* name) const -{ - for (int i=0; i<pi->argc; i++) { - // SGML: names are case insensitive - if ( qstricmp( name, pi->argn[i] ) == 0 ) { - if (pi->argv[i].isEmpty()) - return ""; - else - return pi->argv[i]; - } - } - return 0; -} - -/*! - Returns the user agent (browser name) containing this instance. -*/ -const char* TQNPInstance::userAgent() const -{ - return NPN_UserAgent(pi->npp); -} - -/*! - \preliminary - - This function is \e{not tested}. - - Requests the creation of a new data stream \e from the plugin. - The MIME type and window are passed in \a mimetype and \a window. - \a as_file holds the \c AsFileOnly flag. It is an interface to the - NPN_NewStream function of the Netscape Plugin API. -*/ -TQNPStream* TQNPInstance::newStream(const char* mimetype, const char* window, - bool as_file) -{ - NPStream* s=0; - NPError err = NPN_NewStream(pi->npp, (char*)mimetype, window, &s); - if (err != NPERR_NO_ERROR) return 0; - return s ? new TQNPStream(this, mimetype, s, as_file) : 0; -} - -/*! - Sets the status message in the browser containing this instance to - \a msg. -*/ -void TQNPInstance::status(const char* msg) -{ - NPN_tqStatus(pi->npp, msg); -} - - -/*! - Returns the Java object associated with the plugin instance, an - object of the \link TQNPlugin::getJavaClass() plugin's Java - class\endlink, or 0 if the plug-in does not have a Java class, - Java is disabled, or an error occurred. - - The return value is actually a \c{jref} we use \c{void*} so as to - avoid burdening plugins which do not require Java. - - \sa TQNPlugin::getJavaClass(), TQNPlugin::getJavaEnv(), getJavaPeer() -*/ -void* TQNPInstance::getJavaPeer() const -{ - return NPN_GetJavaPeer(pi->npp); -} - - -/*! - \class TQNPStream tqnp.h - \brief The TQNPStream class provides a stream of data provided to a TQNPInstance by the browser. - - \extension Netscape Plugin - - Note that this is neither a TQTextStream nor a TQDataStream. - - \sa TQNPInstance::write(), TQNPInstance::newStreamCreated() -*/ - -/*! - Creates a stream. Plugins should not call this; they should call - TQNPInstance::newStream() if they need a stream. - - Takes a TQNPInstance \a in, MIME type \a mt, a pointer to an - _NPStream \a st and a seekable flag \a se. -*/ -TQNPStream::TQNPStream(TQNPInstance* in,const char* mt, _NPStream* st, bool se) : - inst(in), - stream(st), - mtype(mt), - seek(se) -{ - isokay = TRUE; - iscomplete = FALSE; -} - -/*! - Destroys the stream. -*/ -TQNPStream::~TQNPStream() -{ - if (!qnps_no_call_back) { - qnps_no_call_back++; - NPN_DestroyStream(inst->pi->npp, stream, NPRES_USER_BREAK); - qnps_no_call_back--; - } -} - -/*! - \fn TQNPInstance* TQNPStream::instance() - - Returns the TQNPInstance for which this stream was created. -*/ - -/*! - Returns the URL from which the stream was created. -*/ -const char* TQNPStream::url() const -{ - return stream->url; -} - -/*! - Returns the length of the stream in bytes. The function might - return 0 for streams of unknown length. -*/ -uint TQNPStream::end() const -{ - return stream->end; -} - -/*! - Returns the time when the source of the stream was last modified. -*/ -uint TQNPStream::lastModified() const -{ - return stream->lastmodified; -} - -/*! - Returns the MIME type of the stream. -*/ -const char* TQNPStream::type() const -{ - return mtype; -} - -/*! - Returns TRUE if the stream is seekable; otherwise returns FALSE. -*/ -bool TQNPStream::seekable() const -{ - return seek; -} - -/*! - \internal -*/ -void TQNPStream::setOkay(bool y) -{ - isokay = y; -} - -/*! - \internal -*/ -void TQNPStream::setComplete(bool y) -{ - iscomplete = y; -} - -/*! - Returns TRUE if no errors have occurred on the stream; otherwise - returns FALSE. -*/ -bool TQNPStream::okay() const -{ - return isokay; -} - -/*! - Returns TRUE if the stream has received all the data from the - source; otherwise returns FALSE. -*/ -bool TQNPStream::complete() const -{ - return iscomplete; -} - -/*! - Requests the section of the stream, of \a length bytes from \a - offset, be sent to the TQNPInstance::write() function of the - instance() of this stream. -*/ -void TQNPStream::requestRead(int offset, uint length) -{ - NPByteRange range; - range.offset = offset; - range.length = length; - range.next = 0; // ### Only one supported at this time - NPN_RequestRead(stream, &range); -} - -/*! - Writes \a len bytes from \a buffer \e to the stream. -*/ -int TQNPStream::write( int len, void* buffer ) -{ - return NPN_Write(inst->pi->npp, stream, len, buffer); -} - - - -/****************************************************************************** - * The plugin itself - only one ever exists, created by TQNPlugin::create() - *****************************************************************************/ - - -/*! - \class TQNPlugin tqnp.h - \brief The TQNPlugin class provides the main factory for plugin objects. - - \extension Netscape Plugin - - This class is the heart of the plugin. One instance of this object - is created when the plugin is \e first needed, by calling - TQNPlugin::create(), which must be implemented in your plugin code - to return some derived class of TQNPlugin. The one TQNPlugin object - creates all TQNPInstance instances for a web browser running in a - single process. - - Additionally, if TQt is linked to the plugin as a dynamic library, - only one instance of TQApplication will exist \e{across all plugins - that have been made with TQt}. So, your plugin should tread lightly - on global settings. Do not, for example, use - TQApplication::setFont() - that will change the font in every - widget of every TQt-based plugin currently loaded! -*/ - -/*! - \fn TQNPlugin* TQNPlugin::create() - - This function must be implemented by your plugin code. It should return a - derived class of TQNPlugin. -*/ - -/*! - Returns the plugin most recently returned by TQNPlugin::create(). -*/ -TQNPlugin* TQNPlugin::actual() -{ - return qNP; -} - -/*! - Creates a TQNPlugin. This may only be used by the constructor - of the class, derived from TQNPlugin, that is returned by your - plugin's implementation of the TQNPlugin::create() function. -*/ -TQNPlugin::TQNPlugin() -{ - // Encourage linker to include stuff. - static void* a; - a = (void*)NP_Initialize; - a = (void*)NP_Shutdown; -} - -/*! - Destroys the TQNPlugin. This is called by the plugin binding code - just before the plugin is about to be unloaded from memory. If - newWindow() has been called, a TQApplication will still exist at - this time, but will be deleted shortly after, just before the plugin - is deleted. -*/ -TQNPlugin::~TQNPlugin() -{ -} - -/*! - Populates \e *\a plugin_major and \e *\a plugin_minor with the - version of the plugin API and populates \e *\a browser_major and - \e *\a browser_minor with the version of the web browser. -*/ -void TQNPlugin::getVersionInfo(int& plugin_major, int& plugin_minor, - int& browser_major, int& browser_minor) -{ - NPN_Version(&plugin_major, &plugin_minor, &browser_major, &browser_minor); -} - -/*! - \fn TQNPInstance* TQNPlugin::newInstance() - - Override this function to return an appropriate derived class of - TQNPInstance. -*/ - -/*! - \fn const char* TQNPlugin::getMIMEDescription() const - - Override this function to return the MIME description of the data formats - supported by your plugin. The format of this string is shown by - the following example: - -\code - const char* getMIMEDescription() const - { - return "image/x-png:png:PNG Image;" - "image/png:png:PNG Image;" - "image/x-portable-bitmap:pbm:PBM Image;" - "image/x-portable-graymap:pgm:PGM Image;" - "image/x-portable-pixmap:ppm:PPM Image;" - "image/bmp:bmp:BMP Image;" - "image/x-ms-bmp:bmp:BMP Image;" - "image/x-xpixmap:xpm:XPM Image;" - "image/xpm:xpm:XPM Image"; - } -\endcode -*/ - -/*! - \fn const char* TQNPlugin::getPluginNameString() const - - Returns a pointer to the plain-text name of the plugin. -*/ - -/*! - \fn const char* TQNPlugin::getPluginDescriptionString() const - - Returns a pointer to the plain-text description of the plugin. -*/ - -/*! - Override this function to return a reference to the Java class that represents - the plugin. The default returns 0, indicating no class. - - If you override this class, you must also override - TQNPlugin::unuseJavaClass(). - - The return value is actually a \c{jref}; we use \c{void*} so as to - avoid burdening plugins which do not require Java. - - \sa getJavaEnv(), TQNPInstance::getJavaPeer() -*/ -void* TQNPlugin::getJavaClass() -{ - return NULL; -} - -/*! - This function is called when the plugin is shutting down. The - function should \e unuse the Java class returned earlier by - getJavaClass(). -*/ -void TQNPlugin::unuseJavaClass() -{ - qFatal("TQNPlugin::unuseJavaClass() must be overridden along with getJavaClass()"); -} - -/*! - Returns a pointer to the Java execution environment, or 0 if - either Java is disabled or an error occurred. - - The return value is actually a \c{JRIEnv*}; we use \c{void*} so as - to avoid burdening plugins which do not require Java. - - \sa getJavaClass(), TQNPInstance::getJavaPeer() -*/ -void* TQNPlugin::getJavaEnv() const -{ - return NPN_GetJavaEnv(); -} - -#ifdef TQ_WS_X11 - -#include <tqapplication.h> -#include <tqwidgetintdict.h> - -// resolve the conflict between X11's FocusIn and TQEvent::FocusIn -const int XFocusOut = FocusOut; -const int XFocusIn = FocusIn; -#undef FocusOut -#undef FocusIn - -const int XKeyPress = KeyPress; -const int XKeyRelease = KeyRelease; -#undef KeyPress -#undef KeyRelease - -Boolean qnpxt_event_dispatcher( XEvent *event ); -static void qnpxt_keep_alive(); -void qnpxt_timeout_handler( XtPointer, XtIntervalId * ); - -class TQNPXtPrivate -{ -public: - TQNPXtPrivate(); - - void hookMeUp(); - void unhook(); - - XtAppContext appContext, ownContext; - TQMemArray<XtEventDispatchProc> dispatchers; - TQWidgetIntDict mapper; - - TQIntDict<TQSocketNotifier> socknotDict; - uint pending_socknots; - bool activate_timers; - int timerid; - - // arguments for Xt display initialization - const char* applicationClass; - XrmOptionDescRec* options; - int numOptions; -}; -static TQNPXtPrivate *static_d = 0; -static XEvent* last_xevent = 0; - - -bool TQNPXt::redeliverEvent( XEvent *event ) -{ - // redeliver the event to Xt, NOT through TQt - if ( static_d->dispatchers[ event->type ]( event ) ) { - // qDebug( "Xt: redelivered event" ); - return TRUE; - } - return FALSE; -}; - - -XEvent* TQNPXt::lastEvent() -{ - return last_xevent; -} - - -TQNPXtPrivate::TQNPXtPrivate() - : appContext(NULL), ownContext(NULL), - pending_socknots(0), activate_timers(FALSE), timerid(-1) -{ -} - -void TQNPXtPrivate::hookMeUp() -{ - // worker to plug TQt into Xt (event dispatchers) - // and Xt into TQt (TQNPXtEventLoop) - - // ### TODO extensions? - dispatchers.resize( LASTEvent ); - dispatchers.fill( 0 ); - int et; - for ( et = 2; et < LASTEvent; et++ ) - dispatchers[ et ] = - XtSetEventDispatcher( TQPaintDevice::x11AppDisplay(), - et, ::qnpxt_event_dispatcher ); -} - -void TQNPXtPrivate::unhook() -{ - // unhook TQt from Xt (event dispatchers) - // unhook Xt from TQt? (TQNPXtEventLoop) - - // ### TODO extensions? - int et; - for ( et = 2; et < LASTEvent; et++ ) - (void) XtSetEventDispatcher( TQPaintDevice::x11AppDisplay(), - et, dispatchers[ et ] ); - dispatchers.resize( 0 ); - - /* - We cannot destroy the app context here because it closes the X - display, something TQApplication does as well a bit later. - if ( ownContext ) - XtDestroyApplicationContext( ownContext ); - */ - appContext = ownContext = 0; -} - -extern bool qt_try_modal( TQWidget *, XEvent * ); // defined in qapplication_x11.cpp -Boolean qnpxt_event_dispatcher( XEvent *event ) -{ - static bool grabbed = FALSE; - - TQApplication::sendPostedEvents(); - - TQWidgetIntDict *mapper = &static_d->mapper; - TQWidget* qnpxt = mapper->find( event->xany.window ); - if ( !qnpxt && TQWidget::find( event->xany.window) == 0 ) { - // event is not for TQt, try Xt - Widget w = XtWindowToWidget( TQPaintDevice::x11AppDisplay(), - event->xany.window ); - while ( w && ! ( qnpxt = mapper->find( XtWindow( w ) ) ) ) { - if ( XtIsShell( w ) ) { - break; - } - w = XtParent( w ); - } - - if ( qnpxt && ( event->type == XKeyPress || - event->type == XKeyRelease ) ) { - // remap key events to keep accelerators working - event->xany.window = qnpxt->winId(); - } - - if ( w ) { - if ( !grabbed && ( event->type == XFocusIn && - event->xfocus.mode == NotifyGrab ) ) { - // qDebug( "Xt: grab started" ); - grabbed = TRUE; - } else if ( grabbed && ( event->type == XFocusOut && - event->xfocus.mode == NotifyUngrab ) ) { - // qDebug( "Xt: grab ended" ); - grabbed = FALSE; - } - } - } - - /* - If the mouse has been grabbed for a window that we don't know - about, we shouldn't deliver any pointer events, since this will - intercept the event that ends the mouse grab that Xt/Motif - started. - */ - bool do_deliver = TRUE; - if ( grabbed && ( event->type == ButtonPress || - event->type == ButtonRelease || - event->type == MotionNotify || - event->type == EnterNotify || - event->type == LeaveNotify ) ) - do_deliver = FALSE; - - last_xevent = event; - bool delivered = do_deliver && ( tqApp->x11ProcessEvent( event ) != -1 ); - last_xevent = 0; - if ( qnpxt ) { - switch ( event->type ) { - case EnterNotify: - case LeaveNotify: - event->xcrossing.focus = False; - delivered = FALSE; - break; - case XKeyPress: - case XKeyRelease: - delivered = TRUE; - break; - case XFocusIn: - case XFocusOut: - delivered = FALSE; - break; - default: - delivered = FALSE; - break; - } - } - - qnpxt_keep_alive(); - - if ( delivered ) { - // qDebug( "TQt: delivered event" ); - return True; - } - - // discard user input events when we have an active popup widget - if ( TQApplication::activePopupWidget() ) { - switch ( event->type ) { - case ButtonPress: // disallow mouse/key events - case ButtonRelease: - case MotionNotify: - case XKeyPress: - case XKeyRelease: - case EnterNotify: - case LeaveNotify: - case ClientMessage: - // qDebug( "TQt: active popup - discarding event" ); - return True; - - default: - break; - } - } - - if ( TQApplication::activeModalWidget() ) { - if ( qnpxt ) { - // send event through TQt modality handling... - if ( !qt_try_modal( qnpxt, event ) ) { - // qDebug( "TQt: active modal widget discarded event" ); - return True; - } - } else if ( !grabbed ) { - // we could have a pure Xt shell as a child of the active - // modal widget - TQWidget *qw = 0; - Widget xw = XtWindowToWidget( TQPaintDevice::x11AppDisplay(), - event->xany.window ); - while ( xw && !( qw = mapper->find( XtWindow( xw ) ) ) ) - xw = XtParent( xw ); - - while ( qw && qw != TQApplication::activeModalWidget() ) - qw = qw->parentWidget(); - - if ( !qw ) { - // event is destined for an Xt widget, but since TQt has an - // active modal widget, we stop here... - switch ( event->type ) { - case ButtonPress: // disallow mouse/key events - case ButtonRelease: - case MotionNotify: - case XKeyPress: - case XKeyRelease: - case EnterNotify: - case LeaveNotify: - case ClientMessage: - // qDebug( "TQt: active modal widget discarded unknown event" ); - return True; - default: - break; - } - } - } - } - - if ( static_d->dispatchers[ event->type ]( event ) ) { - // qDebug( "Xt: delivered event" ); - // Xt handled the event. - return True; - } - - return False; -} - - - -TQNPXt::TQNPXt( const char *applicationClass, XtAppContext context, - XrmOptionDescRec *options , int numOptions) -{ -#if defined(TQT_CHECK_STATE) - if ( static_d ) - qWarning( "TQNPXt: should only have one TQNPXt instance!" ); -#endif - - d = static_d = new TQNPXtPrivate; - XtToolkitInitialize(); - if ( context ) - d->appContext = context; - else - d->ownContext = d->appContext = XtCreateApplicationContext(); - - d->applicationClass = applicationClass; - d->options = options; - d->numOptions = numOptions; -} - - -TQNPXt::~TQNPXt() -{ - delete d; - static_d = 0; -} - -XtAppContext TQNPXt::applicationContext() const -{ - return d->appContext; -} - - -void TQNPXt::appStartingUp() -{ - /* - TQApplication could be using a Display from an outside source, so - we should only initialize the display if the current application - context does not contain the TQApplication display - */ - - bool display_found = FALSE; - Display **displays; - Cardinal x, count; - XtGetDisplays( d->appContext, &displays, &count ); - for ( x = 0; x < count && ! display_found; ++x ) { - if ( displays[x] == TQPaintDevice::x11AppDisplay() ) - display_found = TRUE; - } - if ( displays ) - XtFree( (char *) displays ); - - if ( ! display_found ) { - int argc = tqApp->argc(); - XtDisplayInitialize( d->appContext, - TQPaintDevice::x11AppDisplay(), - tqApp->name(), - d->applicationClass, - d->options, - d->numOptions, - &argc, - tqApp->argv() ); - } - - d->hookMeUp(); - - // start a zero-timer to get the timer keep-alive working - d->timerid = XtAppAddTimeOut( d->appContext, 0, qnpxt_timeout_handler, 0 ); -} - -void TQNPXt::appClosingDown() -{ - if ( d->timerid != -1 ) - XtRemoveTimeOut( d->timerid ); - d->timerid = -1; - - d->unhook(); -} - - -void TQNPXt::registerWidget( TQWidget* w ) -{ - if ( !static_d ) - return; - static_d->mapper.insert( w->winId(), w ); -} - - -void TQNPXt::unregisterWidget( TQWidget* w ) -{ - if ( !static_d ) - return; - static_d->mapper.remove( w->winId() ); -} - - -void qnpxt_socknot_handler( XtPointer pointer, int *, XtInputId *id ) -{ - TQNPXt *eventloop = (TQNPXt *) pointer; - TQSocketNotifier *socknot = static_d->socknotDict.find( *id ); - if ( ! socknot ) // this shouldn't happen - return; - eventloop->setSocketNotifierPending( socknot ); - if ( ++static_d->pending_socknots > static_d->socknotDict.count() ) { - /* - We have too many pending socket notifiers. Since Xt prefers - socket notifiers over X events, we should go ahead and - activate all our pending socket notifiers so that the event - loop doesn't freeze up because of this. - */ - eventloop->activateSocketNotifiers(); - static_d->pending_socknots = 0; - } -} - -void TQNPXt::registerSocketNotifier( TQSocketNotifier *notifier ) -{ - XtInputMask mask; - switch ( notifier->type() ) { - case TQSocketNotifier::Read: - mask = XtInputReadMask; - break; - - case TQSocketNotifier::Write: - mask = XtInputWriteMask; - break; - - case TQSocketNotifier::Exception: - mask = XtInputExceptMask; - break; - - default: - qWarning( "TQNPXtEventLoop: socket notifier has invalid type" ); - return; - } - - XtInputId id = XtAppAddInput( d->appContext, - notifier->socket(), (XtPointer) mask, - qnpxt_socknot_handler, this ); - d->socknotDict.insert( id, notifier ); - - TQEventLoop::registerSocketNotifier( notifier ); -} - -void TQNPXt::unregisterSocketNotifier( TQSocketNotifier *notifier ) -{ - TQIntDictIterator<TQSocketNotifier> it( d->socknotDict ); - while ( it.current() && notifier != it.current() ) - ++it; - if ( ! it.current() ) { - // this shouldn't happen - qWarning( "TQNPXtEventLoop: failed to unregister socket notifier" ); - return; - } - - XtRemoveInput( it.currentKey() ); - d->socknotDict.remove( it.currentKey() ); - - TQEventLoop::unregisterSocketNotifier( notifier ); -} - -static void qnpxt_keep_alive() { - // make sure we fire off TQt's timers - int ttw = TQApplication::eventLoop()->timeToWait(); - if ( static_d->timerid != -1 ) - XtRemoveTimeOut( static_d->timerid ); - static_d->timerid = -1; - if ( ttw != -1 ) { - static_d->timerid = - XtAppAddTimeOut( static_d->appContext, ttw, qnpxt_timeout_handler, 0 ); - } -} - -void qnpxt_timeout_handler( XtPointer, XtIntervalId * ) -{ - static_d->timerid = -1; - - if ( ! TQApplication::eventLoop()->loopLevel() ) { - /* - when the TQt eventloop is not running, make sure that TQt - timers still work with an Xt keep-alive timer - */ - TQApplication::eventLoop()->activateTimers(); - static_d->activate_timers = FALSE; - - qnpxt_keep_alive(); - } else { - static_d->activate_timers = TRUE; - } -} - -bool TQNPXt::processEvents( ProcessEventsFlags flags ) -{ - // TQt uses posted events to do lots of delayed operations, like - // repaints... these need to be delivered before we go to sleep - TQApplication::sendPostedEvents(); - - bool canWait = ( flags & WaitForMore ); - - qnpxt_keep_alive(); - - // get the pending event mask from Xt and process the next event - XtInputMask pendingmask = XtAppPending( d->appContext ); - XtInputMask mask = pendingmask; - if ( pendingmask & XtIMTimer ) { - mask &= ~XtIMTimer; - // zero timers will starve the Xt X event dispatcher... so - // process something *instead* of a timer first... - if ( mask != 0 ) - XtAppProcessEvent( d->appContext, mask ); - // and process a timer afterwards - mask = pendingmask & XtIMTimer; - } - - if ( canWait ) - XtAppProcessEvent( d->appContext, XtIMAll ); - else - XtAppProcessEvent( d->appContext, mask ); - - int nevents = 0; - if ( ! ( flags & ExcludeSocketNotifiers ) ) { - nevents += activateSocketNotifiers(); - d->pending_socknots = 0; - } - - if ( d->activate_timers ) { - nevents += activateTimers(); - } - d->activate_timers = FALSE; - - return ( canWait || ( pendingmask != 0 ) || nevents > 0 ); -} - - -#endif // TQ_WS_X11 |