utils/nplugin/src/npapp.cpp

   1 /*
   2  * File:        NPApp.cc
   3  * Purpose:     wxPluginApp implementation
   4  * Author:      Julian Smart
   5  * Created:     1997
   6  * Updated:
   7  * Copyright:   (c) Julian Smart
   8  */
   9
  10 // For compilers that support precompilation, includes "wx/wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #ifdef __BORLANDC__
  14 #pragma hdrstop
  15 #endif
  16
  17 #include "NPApp.h"
  18 #include "NPFrame.h"
  19
  20 #include <windows.h>
  21
  22 IMPLEMENT_ABSTRACT_CLASS(wxPluginApp, wxApp)
  23
  24 wxPluginApp *wxGetPluginApp(void)
  25 {
  26     if ( wxTheApp && wxTheApp->IsKindOf(CLASSINFO(wxPluginApp)))
  27         return (wxPluginApp *)wxTheApp;
  28     else
  29         return NULL;
  30 }
  31
  32 wxPluginApp::wxPluginApp(void)
  33 {
  34   m_data.m_argc = NULL;
  35   m_data.m_argn = NULL;
  36   m_data.m_argv = NULL;
  37   m_data.m_type = 0;
  38   m_data.m_instance = 0;
  39   m_data.m_mode = 0;
  40   m_data.m_window = 0;
  41 }
  42
  43 wxPluginApp::~wxPluginApp(void)
  44 {
  45     if ( m_data.m_argn )
  46         delete[] m_data.m_argn;
  47     if ( m_data.m_argv )
  48         delete[] m_data.m_argv;
  49 }
  50
  51 // Add a frame
  52 void wxPluginApp::AddFrame(wxPluginFrame *frame)
  53 {
  54     m_frames.Append(frame);
  55 }
  56
  57 // Remove a frame
  58 void wxPluginApp::RemoveFrame(wxPluginFrame *frame)
  59 {
  60     m_frames.DeleteObject(frame);
  61 }
  62
  63 // Find a frame given a NP instance
  64 wxPluginFrame *wxPluginApp::FindFrame(NPP instance)
  65 {
  66     wxNode *node = m_frames.First();
  67     while ( node )
  68     {
  69         wxPluginFrame *frame = (wxPluginFrame *)node->Data();
  70         if ( frame->GetInstance() == instance )
  71         {
  72             return frame;
  73         }
  74         node = node->Next();
  75     }
  76     return NULL;
  77 }
  78
  79 void wxPluginApp::SetAttributeValues(const int n, char *argn[], char *argv[])
  80 {
  81     if ( m_data.m_argn )
  82         delete[] m_data.m_argn;
  83     if ( m_data.m_argv )
  84         delete[] m_data.m_argv;
  85
  86     m_data.m_argc = n;
  87
  88     m_data.m_argn = new wxString[n];
  89     m_data.m_argv = new wxString[n];
  90     int i;
  91     for ( i = 0; i < n ; i ++)
  92     {
  93         m_data.m_argn[i] = argn[i];
  94         m_data.m_argv[i] = argv[i];
  95     }
  96 }
  97
  98 ///////////////////////////////////////////////////////////////
  99 // Netscape Plugin API calls routed via wxPluginApp
 100
 101 NPError   wxPluginApp::NPP_Destroy(NPP instance, NPSavedData** save)
 102 {
 103     wxPluginFrame *frame = FindFrame(instance);
 104     if ( frame )
 105     {
 106         frame->Close();
 107     }
 108     return NPERR_NO_ERROR;
 109 }
 110
 111 NPError   wxPluginApp::NPP_DestroyStream(NPP instance, NPStream* stream, NPError reason)
 112 {
 113    return NPERR_NO_ERROR;
 114 }
 115
 116 /*
 117 jref      wxPluginApp::NPP_GetJavaClass(void)
 118 {
 119    return 0;
 120 }
 121 */
 122
 123 // This can't work now because we don't have a global app until wxEntry is called.
 124 // We'll put the wxEntry call in npshell.cpp instead.
 125 NPError   wxPluginApp::NPP_Initialize(void)
 126 {
 127     static int init = FALSE;
 128
 129     if ( init == TRUE )
 130         MessageBox(NULL, "wxPluginApp::NPP_Initialize:\nabout to call wxEntry for 2nd time!!!", "wxPlugin", MB_OK);
 131
 132     wxEntry((WXHINSTANCE) GetModuleHandle(NULL));
 133
 134     init = TRUE;
 135
 136 //    MessageBox(NULL, "wxPluginApp::NPP_Initialize: have called wxEntry", "wxPlugin", MB_OK);
 137     return NPERR_NO_ERROR;
 138 }
 139
 140 NPError   wxPluginApp::NPP_New(NPMIMEType pluginType, NPP instance, uint16 mode,
 141                         int16 argc, char* argn[], char* argv[], NPSavedData* saved)
 142 {
 143 //    MessageBox(NULL, "wxPluginApp::NPP_New", "wxPlugin", MB_OK);
 144
 145     // Save values so frame can be created in first NPP_SetWindow
 146     if ( m_data.m_instance != 0 )
 147     {
 148         MessageBox(NULL, "wxPluginApp::NPP_New: whoops, 2 NPP_New calls in succession without NPP_SetWindow.\n Need to modify my code!", "wxPlugin", MB_OK);
 149         return NPERR_NO_ERROR;
 150     }
 151
 152     m_data.m_instance = instance;
 153     m_data.m_type = pluginType;
 154     m_data.m_mode = mode;
 155
 156     SetAttributeValues(argc, argn, argv);
 157
 158     // Unfortunately, we may get a stream event before we've got a valid window
 159     // handle, so we just have to go ahead and create a new instance.
 160     wxPluginFrame *frame = OnNewInstance(m_data);
 161
 162     m_data.m_instance = NULL;
 163     m_data.m_window = NULL;
 164     delete[] m_data.m_argv;
 165     delete[] m_data.m_argn;
 166     m_data.m_argv = NULL;
 167     m_data.m_argn = NULL;
 168
 169     return NPERR_NO_ERROR;
 170 }
 171
 172 NPError   wxPluginApp::NPP_NewStream(NPP instance, NPMIMEType type, NPStream *stream,
 173                         NPBool seekable, uint16* stype)
 174 {
 175     // By default, we want to receive a file instead of a stream.
 176     wxPluginFrame *frame = FindFrame(instance);
 177     if ( frame )
 178     {
 179         return frame->OnNPNewStream(type, stream, seekable, stype);
 180     }
 181     return NPERR_NO_ERROR;
 182 }
 183
 184 void wxPluginApp::NPP_Print(NPP instance, NPPrint* printInfo)
 185 {
 186     if (instance == NULL)
 187         return;
 188
 189     wxPluginFrame *frame = FindFrame(instance);
 190     if ( frame )
 191     {
 192         frame->OnNPPrint(printInfo);
 193     }
 194 }
 195
 196 NPError      wxPluginApp::NPP_SetWindow(NPP instance, NPWindow* window)
 197 {
 198 //    MessageBox(NULL, "wxPluginApp::NPP_SetWindow", "wxPlugin", MB_OK);
 199
 200     if ( window )
 201         wxDebugMsg("%d\n", (int) window->window);
 202
 203     wxPluginFrame *frame = FindFrame(instance);
 204     if ( frame )
 205     {
 206         frame->SetNPWindow(window);
 207     }
 208     else
 209     {
 210 #if 0
 211         // No such frame: must make it.
 212         if ( m_data.m_instance == NULL )
 213         {
 214             MessageBox(NULL, "wxPluginApp::NPP_SetWindow: whoops, no data to create window. SetWindow called in funny order?", "wxPlugin", MB_OK);
 215             return NPERR_NO_ERROR;
 216         }
 217
 218         if ( window->window == NULL )
 219         {
 220             // We're receiving a NULL window before we've even received
 221             // a valid window. Ignore this silly thing.
 222             return NPERR_NO_ERROR;
 223         }
 224
 225         m_data.m_window = window;
 226         m_data.m_instance = instance;
 227
 228 //        wxPluginFrame *frame = OnNewInstance(m_data);
 229
 230         m_data.m_instance = NULL;
 231         m_data.m_window = NULL;
 232         delete[] m_data.m_argv;
 233         delete[] m_data.m_argn;
 234         m_data.m_argv = NULL;
 235         m_data.m_argn = NULL;
 236 #endif
 237     }
 238     return NPERR_NO_ERROR;
 239 }
 240
 241 void      wxPluginApp::NPP_Shutdown(void)
 242 {
 243     // Clean up wxWidgets
 244     CleanUp();
 245 }
 246
 247 void      wxPluginApp::NPP_StreamAsFile(NPP instance, NPStream* stream, const char *fname)
 248 {
 249     wxPluginFrame *frame = FindFrame(instance);
 250     if ( frame )
 251     {
 252         wxString str(fname);
 253         frame->OnNPNewFile(stream, str);
 254     }
 255 }
 256
 257 /*
 258 void      wxPluginApp::NPP_URLNotify(NPP instance, const char* url, NPReason reason,
 259                         void* notifyData)
 260 {
 261 }
 262 */
 263
 264 int32     wxPluginApp::NPP_Write(NPP instance, NPStream* stream, int32 offset, int32 len,
 265                         void* buf)
 266 {
 267     return len;              // The number of bytes accepted
 268 }
 269
 270 static int32 STREAMBUFSIZE = 0X0FFFFFFF;   // If we are reading from a file in NPAsFile
 271                                     // mode so we can take any size stream in our
 272                                     // write call (since we ignore it)
 273
 274 int32     wxPluginApp::NPP_WriteReady(NPP instance, NPStream* stream)
 275 {
 276     return STREAMBUFSIZE;   // Number of bytes ready to accept in NPP_Write()
 277 }
 278