src/msw/taskbar.cpp

   1 /////////////////////////////////////////////////////////////////////////
   2 // File:        taskbar.cpp
   3 // Purpose:         Implements wxTaskBarIcon class for manipulating icons on
   4 //              the Windows task bar.
   5 // Author:      Julian Smart
   6 // Modified by:
   7 // Created:     24/3/98
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c)
  10 // Licence:     wxWindows licence
  11 /////////////////////////////////////////////////////////////////////////
  12
  13 #ifdef __GNUG__
  14 #pragma implementation "taskbar.h"
  15 #endif
  16
  17 // For compilers that support precompilation, includes "wx.h".
  18 #include "wx/wxprec.h"
  19
  20 #ifdef __BORLANDC__
  21 #pragma hdrstop
  22 #endif
  23
  24 #ifndef WX_PRECOMP
  25 #include "wx/defs.h"
  26 #include "wx/window.h"
  27 #include "wx/frame.h"
  28 #include "wx/utils.h"
  29 #endif
  30
  31 #ifdef __WIN95__
  32
  33 #include <windows.h>
  34 #include <string.h>
  35 #include <wx/msw/taskbar.h>
  36 #include <wx/msw/private.h>
  37
  38 #ifdef __GNUWIN32__
  39 #include <wx/msw/gnuwin32/extra.h>
  40 #endif
  41
  42 LRESULT APIENTRY _EXPORT wxTaskBarIconWindowProc( HWND hWnd, unsigned msg,
  43                                      UINT wParam, LONG lParam );
  44
  45 char *wxTaskBarWindowClass = "wxTaskBarWindowClass";
  46
  47 wxList wxTaskBarIcon::sm_taskBarIcons;
  48 bool   wxTaskBarIcon::sm_registeredClass = FALSE;
  49 UINT   wxTaskBarIcon::sm_taskbarMsg = 0;
  50
  51
  52 #if !USE_SHARED_LIBRARY
  53 BEGIN_EVENT_TABLE(wxTaskBarIcon, wxEvtHandler)
  54     EVT_TASKBAR_MOVE         (wxTaskBarIcon::_OnMouseMove)
  55     EVT_TASKBAR_LEFT_DOWN    (wxTaskBarIcon::_OnLButtonDown)
  56     EVT_TASKBAR_LEFT_UP      (wxTaskBarIcon::_OnLButtonUp)
  57     EVT_TASKBAR_RIGHT_DOWN   (wxTaskBarIcon::_OnRButtonDown)
  58     EVT_TASKBAR_RIGHT_UP     (wxTaskBarIcon::_OnRButtonUp)
  59     EVT_TASKBAR_LEFT_DCLICK  (wxTaskBarIcon::_OnLButtonDClick)
  60     EVT_TASKBAR_RIGHT_DCLICK (wxTaskBarIcon::_OnRButtonDClick)
  61 END_EVENT_TABLE()
  62
  63
  64 IMPLEMENT_DYNAMIC_CLASS(wxTaskBarIcon, wxEvtHandler)
  65 #endif
  66
  67
  68 wxTaskBarIcon::wxTaskBarIcon(void)
  69 {
  70     m_hWnd = 0;
  71     m_iconAdded = FALSE;
  72
  73     AddObject(this);
  74
  75     if (RegisterWindowClass())
  76         m_hWnd = CreateTaskBarWindow();
  77 }
  78
  79 wxTaskBarIcon::~wxTaskBarIcon(void)
  80 {
  81     RemoveObject(this);
  82
  83     if (m_iconAdded)
  84     {
  85         RemoveIcon();
  86     }
  87
  88     if (m_hWnd)
  89     {
  90         ::DestroyWindow((HWND) m_hWnd);
  91         m_hWnd = 0;
  92     }
  93 }
  94
  95 // Operations
  96 bool wxTaskBarIcon::SetIcon(const wxIcon& icon, const wxString& tooltip)
  97 {
  98     if (!IsOK())
  99         return FALSE;
 100
 101     NOTIFYICONDATA notifyData;
 102
 103     memset(&notifyData, 0, sizeof(notifyData));
 104         notifyData.cbSize = sizeof(notifyData);
 105         notifyData.hWnd = (HWND) m_hWnd;
 106         notifyData.uCallbackMessage = sm_taskbarMsg;
 107         notifyData.uFlags = NIF_MESSAGE ;
 108         if (icon.Ok())
 109     {
 110                 notifyData.uFlags |= NIF_ICON;
 111             notifyData.hIcon = (HICON) icon.GetHICON();
 112     }
 113
 114     if (((const char*) tooltip != NULL) && (tooltip != ""))
 115     {
 116         notifyData.uFlags |= NIF_TIP ;
 117                 lstrcpyn(notifyData.szTip, (char*) (const char*) tooltip, sizeof(notifyData.szTip));
 118     }
 119
 120     notifyData.uID = 99;
 121
 122     if (m_iconAdded)
 123         return (Shell_NotifyIcon(NIM_MODIFY, & notifyData) != 0);
 124     else
 125     {
 126         m_iconAdded = (Shell_NotifyIcon(NIM_ADD, & notifyData) != 0);
 127         return m_iconAdded;
 128     }
 129 }
 130
 131 bool wxTaskBarIcon::RemoveIcon(void)
 132 {
 133     if (!m_iconAdded)
 134         return FALSE;
 135
 136     NOTIFYICONDATA notifyData;
 137
 138     memset(&notifyData, 0, sizeof(notifyData));
 139         notifyData.cbSize = sizeof(notifyData);
 140         notifyData.hWnd = (HWND) m_hWnd;
 141         notifyData.uCallbackMessage = sm_taskbarMsg;
 142         notifyData.uFlags = NIF_MESSAGE;
 143         notifyData.hIcon = 0 ; // hIcon;
 144     notifyData.uID = 99;
 145     m_iconAdded = FALSE;
 146
 147     return (Shell_NotifyIcon(NIM_DELETE, & notifyData) != 0);
 148 }
 149
 150 bool wxTaskBarIcon::PopupMenu(wxMenu *menu) //, int x, int y);
 151 {
 152     bool        rval = FALSE;
 153     wxWindow*   win;
 154     int         x, y;
 155     wxGetMousePosition(&x, &y);
 156
 157     // is wxFrame the best window type to use???
 158     win = new wxFrame(NULL, -1, "", wxPoint(x,y), wxSize(-1,-1), 0);
 159     win->PushEventHandler(this);
 160
 161     rval = win->PopupMenu(menu, 0, 0);
 162
 163     win->PopEventHandler(FALSE);
 164     win->Destroy();
 165     return rval;
 166 }
 167
 168
 169 // Overridables
 170 void wxTaskBarIcon::OnMouseMove(wxEvent&)
 171 {
 172 }
 173
 174 void wxTaskBarIcon::OnLButtonDown(wxEvent&)
 175 {
 176 }
 177
 178 void wxTaskBarIcon::OnLButtonUp(wxEvent&)
 179 {
 180 }
 181
 182 void wxTaskBarIcon::OnRButtonDown(wxEvent&)
 183 {
 184 }
 185
 186 void wxTaskBarIcon::OnRButtonUp(wxEvent&)
 187 {
 188 }
 189
 190 void wxTaskBarIcon::OnLButtonDClick(wxEvent&)
 191 {
 192 }
 193
 194 void wxTaskBarIcon::OnRButtonDClick(wxEvent&)
 195 {
 196 }
 197
 198 void wxTaskBarIcon::_OnMouseMove(wxEvent& e)      { OnMouseMove(e);     }
 199 void wxTaskBarIcon::_OnLButtonDown(wxEvent& e)    { OnLButtonDown(e);   }
 200 void wxTaskBarIcon::_OnLButtonUp(wxEvent& e)      { OnLButtonUp(e);     }
 201 void wxTaskBarIcon::_OnRButtonDown(wxEvent& e)    { OnRButtonDown(e);   }
 202 void wxTaskBarIcon::_OnRButtonUp(wxEvent& e)      { OnRButtonUp(e);     }
 203 void wxTaskBarIcon::_OnLButtonDClick(wxEvent& e)  { OnLButtonDClick(e); }
 204 void wxTaskBarIcon::_OnRButtonDClick(wxEvent& e)  { OnRButtonDClick(e); }
 205
 206
 207 wxTaskBarIcon* wxTaskBarIcon::FindObjectForHWND(WXHWND hWnd)
 208 {
 209     wxNode*node = sm_taskBarIcons.First();
 210     while (node)
 211     {
 212         wxTaskBarIcon* obj = (wxTaskBarIcon*) node->Data();
 213         if (obj->GetHWND() == hWnd)
 214             return obj;
 215         node = node->Next();
 216     }
 217     return NULL;
 218 }
 219
 220 void wxTaskBarIcon::AddObject(wxTaskBarIcon* obj)
 221 {
 222     sm_taskBarIcons.Append(obj);
 223 }
 224
 225 void wxTaskBarIcon::RemoveObject(wxTaskBarIcon* obj)
 226 {
 227     sm_taskBarIcons.DeleteObject(obj);
 228 }
 229
 230 bool wxTaskBarIcon::RegisterWindowClass()
 231 {
 232     if (sm_registeredClass)
 233         return TRUE;
 234
 235     // Also register the taskbar message here
 236     sm_taskbarMsg = ::RegisterWindowMessage("wxTaskBarIconMessage");
 237
 238     WNDCLASS    wc;
 239     bool        rc;
 240
 241     HINSTANCE hInstance = GetModuleHandle(NULL);
 242
 243     /*
 244      * set up and register window class
 245      */
 246     wc.style = CS_HREDRAW | CS_VREDRAW;
 247     wc.lpfnWndProc = (WNDPROC) wxTaskBarIconWindowProc;
 248     wc.cbClsExtra = 0;
 249     wc.cbWndExtra = 0;
 250     wc.hInstance = hInstance;
 251     wc.hIcon = 0;
 252     wc.hCursor = 0;
 253     wc.hbrBackground = 0;
 254     wc.lpszMenuName = NULL;
 255     wc.lpszClassName = wxTaskBarWindowClass ;
 256     rc = (::RegisterClass( &wc ) != 0);
 257
 258     sm_registeredClass = (rc != 0);
 259
 260     return( (rc != 0) );
 261 }
 262
 263 WXHWND wxTaskBarIcon::CreateTaskBarWindow()
 264 {
 265     HINSTANCE hInstance = GetModuleHandle(NULL);
 266
 267     HWND hWnd = CreateWindowEx (0, wxTaskBarWindowClass,
 268             "wxTaskBarWindow",
 269             WS_OVERLAPPED,
 270             0,
 271             0,
 272             10,
 273             10,
 274             NULL,
 275             (HMENU) 0,
 276             hInstance,
 277             NULL);
 278
 279     return (WXHWND) hWnd;
 280 }
 281
 282 long wxTaskBarIcon::WindowProc( WXHWND hWnd, unsigned int msg, unsigned int wParam, long lParam )
 283 {
 284     wxEventType eventType = 0;
 285
 286     if (msg != sm_taskbarMsg)
 287         return DefWindowProc((HWND) hWnd, msg, wParam, lParam);
 288
 289     switch (lParam)
 290     {
 291         case WM_LBUTTONDOWN:
 292             eventType = wxEVT_TASKBAR_LEFT_DOWN;
 293             break;
 294
 295         case WM_LBUTTONUP:
 296             eventType = wxEVT_TASKBAR_LEFT_UP;
 297             break;
 298
 299         case WM_RBUTTONDOWN:
 300             eventType = wxEVT_TASKBAR_RIGHT_DOWN;
 301             break;
 302
 303         case WM_RBUTTONUP:
 304             eventType = wxEVT_TASKBAR_RIGHT_UP;
 305             break;
 306
 307         case WM_LBUTTONDBLCLK:
 308             eventType = wxEVT_TASKBAR_LEFT_DCLICK;
 309             break;
 310
 311         case WM_RBUTTONDBLCLK:
 312             eventType = wxEVT_TASKBAR_RIGHT_DCLICK;
 313             break;
 314
 315         case WM_MOUSEMOVE:
 316             eventType = wxEVT_TASKBAR_MOVE;
 317             break;
 318
 319         default:
 320             break;
 321         }
 322
 323     if (eventType) {
 324         wxEvent event;
 325         event.SetEventType(eventType);
 326         event.SetEventObject(this);
 327
 328         ProcessEvent(event);
 329     }
 330     return 0;
 331 }
 332
 333 LRESULT APIENTRY _EXPORT wxTaskBarIconWindowProc( HWND hWnd, unsigned msg,
 334                                      UINT wParam, LONG lParam )
 335 {
 336     wxTaskBarIcon* obj = wxTaskBarIcon::FindObjectForHWND((WXHWND) hWnd);
 337     if (obj)
 338         return obj->WindowProc((WXHWND) hWnd, msg, wParam, lParam);
 339     else
 340         return DefWindowProc(hWnd, msg, wParam, lParam);
 341 }
 342
 343 #endif
 344     // __WIN95__