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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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
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 #include "wx/menu.h"
30 #endif
31
32 #if defined(__WIN95__)
33
34 #include "wx/msw/private.h"
35 #include "wx/msw/winundef.h"
36
37 #include <string.h>
38 #include "wx/taskbar.h"
39
40 #ifdef __GNUWIN32_OLD__
41 #include "wx/msw/gnuwin32/extra.h"
42 #endif
43
44 #ifdef __WXWINCE__
45 #include <winreg.h>
46 #include <shellapi.h>
47 #endif
48
49 #include "wx/listimpl.cpp"
50 WX_DEFINE_LIST(wxTaskBarIconList);
51
52 LRESULT APIENTRY _EXPORT
53 wxTaskBarIconWindowProc( HWND hWnd, unsigned msg, UINT wParam, LONG lParam );
54
55 wxChar *wxTaskBarWindowClass = (wxChar*) wxT("wxTaskBarWindowClass");
56
57 wxTaskBarIconList wxTaskBarIcon::sm_taskBarIcons;
58
59 // initialized on demand
60 UINT gs_msgTaskbar = 0;
61 UINT gs_msgRestartTaskbar = 0;
62
63 #if WXWIN_COMPATIBILITY_2_4
64 BEGIN_EVENT_TABLE(wxTaskBarIcon, wxEvtHandler)
65 EVT_TASKBAR_MOVE (wxTaskBarIcon::_OnMouseMove)
66 EVT_TASKBAR_LEFT_DOWN (wxTaskBarIcon::_OnLButtonDown)
67 EVT_TASKBAR_LEFT_UP (wxTaskBarIcon::_OnLButtonUp)
68 EVT_TASKBAR_RIGHT_DOWN (wxTaskBarIcon::_OnRButtonDown)
69 EVT_TASKBAR_RIGHT_UP (wxTaskBarIcon::_OnRButtonUp)
70 EVT_TASKBAR_LEFT_DCLICK (wxTaskBarIcon::_OnLButtonDClick)
71 EVT_TASKBAR_RIGHT_DCLICK (wxTaskBarIcon::_OnRButtonDClick)
72 END_EVENT_TABLE()
73 #endif
74
75
76 IMPLEMENT_DYNAMIC_CLASS(wxTaskBarIcon, wxEvtHandler)
77
78 // ============================================================================
79 // implementation
80 // ============================================================================
81
82 // ----------------------------------------------------------------------------
83 // NotifyIconData: wrapper around NOTIFYICONDATA
84 // ----------------------------------------------------------------------------
85
86 struct NotifyIconData : public NOTIFYICONDATA
87 {
88 NotifyIconData(WXHWND hwnd)
89 {
90 memset(this, 0, sizeof(NOTIFYICONDATA));
91 cbSize = sizeof(NOTIFYICONDATA);
92 hWnd = (HWND) hwnd;
93 uCallbackMessage = gs_msgTaskbar;
94 uFlags = NIF_MESSAGE;
95
96 // we use the same id for all taskbar icons as we don't need it to
97 // distinguish between them
98 uID = 99;
99 }
100 };
101
102 // ----------------------------------------------------------------------------
103 // wxTaskBarIcon
104 // ----------------------------------------------------------------------------
105
106 wxTaskBarIcon::wxTaskBarIcon()
107 {
108 m_hWnd = 0;
109 m_iconAdded = false;
110
111 AddObject(this);
112
113 if (RegisterWindowClass())
114 m_hWnd = CreateTaskBarWindow();
115 }
116
117 wxTaskBarIcon::~wxTaskBarIcon()
118 {
119 RemoveObject(this);
120
121 if (m_iconAdded)
122 {
123 RemoveIcon();
124 }
125
126 if (m_hWnd)
127 {
128 ::DestroyWindow((HWND) m_hWnd);
129 m_hWnd = 0;
130 }
131 }
132
133 // Operations
134 bool wxTaskBarIcon::SetIcon(const wxIcon& icon, const wxString& tooltip)
135 {
136 if (!IsOk())
137 return false;
138
139 m_icon = icon;
140 m_strTooltip = tooltip;
141
142 NotifyIconData notifyData(m_hWnd);
143
144 if (icon.Ok())
145 {
146 notifyData.uFlags |= NIF_ICON;
147 notifyData.hIcon = GetHiconOf(icon);
148 }
149
150 if ( !tooltip.empty() )
151 {
152 notifyData.uFlags |= NIF_TIP;
153 // lstrcpyn(notifyData.szTip, tooltip.c_str(), WXSIZEOF(notifyData.szTip));
154 wxStrncpy(notifyData.szTip, tooltip.c_str(), WXSIZEOF(notifyData.szTip));
155 }
156
157 bool ok = Shell_NotifyIcon(m_iconAdded ? NIM_MODIFY
158 : NIM_ADD, &notifyData) != 0;
159
160 if ( !m_iconAdded && ok )
161 m_iconAdded = true;
162
163 return ok;
164 }
165
166 bool wxTaskBarIcon::RemoveIcon()
167 {
168 if (!m_iconAdded)
169 return false;
170
171 m_iconAdded = false;
172
173 NotifyIconData notifyData(m_hWnd);
174
175 return Shell_NotifyIcon(NIM_DELETE, &notifyData) != 0;
176 }
177
178 bool wxTaskBarIcon::PopupMenu(wxMenu *menu)
179 {
180 static bool s_inPopup = false;
181
182 if (s_inPopup)
183 return false;
184
185 s_inPopup = true;
186
187 wxWindow* win;
188 int x, y;
189 wxGetMousePosition(&x, &y);
190
191 // is wxFrame the best window type to use???
192 win = new wxFrame(NULL, -1, wxEmptyString, wxPoint(x,y), wxSize(-1,-1), 0);
193 win->PushEventHandler(this);
194
195 // Remove from record of top-level windows, or will confuse wxWindows
196 // if we try to exit right now.
197 wxTopLevelWindows.DeleteObject(win);
198
199 menu->UpdateUI();
200
201 // Work around a WIN32 bug
202 ::SetForegroundWindow ((HWND) win->GetHWND ());
203
204 bool rval = win->PopupMenu(menu, 0, 0);
205
206 // Work around a WIN32 bug
207 ::PostMessage ((HWND) win->GetHWND(),WM_NULL,0,0L);
208
209 win->PopEventHandler(false);
210 win->Destroy();
211 delete win;
212
213 s_inPopup = false;
214
215 return rval;
216 }
217
218 #if WXWIN_COMPATIBILITY_2_4
219 // Overridables
220 void wxTaskBarIcon::OnMouseMove(wxEvent&) {}
221 void wxTaskBarIcon::OnLButtonDown(wxEvent&) {}
222 void wxTaskBarIcon::OnLButtonUp(wxEvent&) {}
223 void wxTaskBarIcon::OnRButtonDown(wxEvent&) {}
224 void wxTaskBarIcon::OnRButtonUp(wxEvent&) {}
225 void wxTaskBarIcon::OnLButtonDClick(wxEvent&) {}
226 void wxTaskBarIcon::OnRButtonDClick(wxEvent&) {}
227
228 void wxTaskBarIcon::_OnMouseMove(wxEvent& e) { OnMouseMove(e); }
229 void wxTaskBarIcon::_OnLButtonDown(wxEvent& e) { OnLButtonDown(e); }
230 void wxTaskBarIcon::_OnLButtonUp(wxEvent& e) { OnLButtonUp(e); }
231 void wxTaskBarIcon::_OnRButtonDown(wxEvent& e) { OnRButtonDown(e); }
232 void wxTaskBarIcon::_OnRButtonUp(wxEvent& e) { OnRButtonUp(e); }
233 void wxTaskBarIcon::_OnLButtonDClick(wxEvent& e) { OnLButtonDClick(e); }
234 void wxTaskBarIcon::_OnRButtonDClick(wxEvent& e) { OnRButtonDClick(e); }
235 #endif
236
237 wxTaskBarIcon* wxTaskBarIcon::FindObjectForHWND(WXHWND hWnd)
238 {
239 wxTaskBarIconList::compatibility_iterator node = sm_taskBarIcons.GetFirst();
240 while (node)
241 {
242 wxTaskBarIcon *obj = node->GetData();
243 if (obj->GetHWND() == hWnd)
244 return obj;
245 node = node->GetNext();
246 }
247 return NULL;
248 }
249
250 void wxTaskBarIcon::AddObject(wxTaskBarIcon* obj)
251 {
252 sm_taskBarIcons.Append(obj);
253 }
254
255 void wxTaskBarIcon::RemoveObject(wxTaskBarIcon* obj)
256 {
257 sm_taskBarIcons.DeleteObject(obj);
258 }
259
260 bool wxTaskBarIcon::RegisterWindowClass()
261 {
262 static bool s_registered = false;
263
264 if ( s_registered )
265 return true;
266
267 // Taskbar restart msg will be sent to us if the icon needs to be redrawn
268 gs_msgRestartTaskbar = RegisterWindowMessage(wxT("TaskbarCreated"));
269
270 // Also register the taskbar message here
271 gs_msgTaskbar = ::RegisterWindowMessage(wxT("wxTaskBarIconMessage"));
272
273 // set up and register window class
274 WNDCLASS wc;
275 wc.style = CS_HREDRAW | CS_VREDRAW;
276 wc.lpfnWndProc = (WNDPROC) wxTaskBarIconWindowProc;
277 wc.cbClsExtra = 0;
278 wc.cbWndExtra = 0;
279 wc.hInstance = wxGetInstance();
280 wc.hIcon = 0;
281 wc.hCursor = 0;
282 wc.hbrBackground = 0;
283 wc.lpszMenuName = NULL;
284 wc.lpszClassName = wxTaskBarWindowClass;
285
286 if ( !::RegisterClass(&wc) )
287 {
288 wxLogLastError(_T("RegisterClass(taskbar icon)"));
289
290 return false;
291 }
292
293 s_registered = true;
294
295 return true;
296 }
297
298 WXHWND wxTaskBarIcon::CreateTaskBarWindow()
299 {
300 HINSTANCE hInstance = wxGetInstance();
301
302 HWND hWnd = CreateWindowEx (0, wxTaskBarWindowClass,
303 wxT("wxTaskBarWindow"),
304 WS_OVERLAPPED,
305 0,
306 0,
307 10,
308 10,
309 NULL,
310 (HMENU) 0,
311 hInstance,
312 NULL);
313
314 return (WXHWND) hWnd;
315 }
316
317 // ----------------------------------------------------------------------------
318 // wxTaskBarIcon window proc
319 // ----------------------------------------------------------------------------
320
321 long wxTaskBarIcon::WindowProc(WXHWND hWnd,
322 unsigned int msg,
323 unsigned int wParam,
324 long lParam)
325 {
326 wxEventType eventType = 0;
327
328 if (msg == gs_msgRestartTaskbar) // does the icon need to be redrawn?
329 {
330 m_iconAdded = false;
331 SetIcon(m_icon, m_strTooltip);
332 }
333
334 if (msg != gs_msgTaskbar)
335 return DefWindowProc((HWND) hWnd, msg, wParam, lParam);
336
337 switch (lParam)
338 {
339 case WM_LBUTTONDOWN:
340 eventType = wxEVT_TASKBAR_LEFT_DOWN;
341 break;
342
343 case WM_LBUTTONUP:
344 eventType = wxEVT_TASKBAR_LEFT_UP;
345 break;
346
347 case WM_RBUTTONDOWN:
348 eventType = wxEVT_TASKBAR_RIGHT_DOWN;
349 break;
350
351 case WM_RBUTTONUP:
352 eventType = wxEVT_TASKBAR_RIGHT_UP;
353 break;
354
355 case WM_LBUTTONDBLCLK:
356 eventType = wxEVT_TASKBAR_LEFT_DCLICK;
357 break;
358
359 case WM_RBUTTONDBLCLK:
360 eventType = wxEVT_TASKBAR_RIGHT_DCLICK;
361 break;
362
363 case WM_MOUSEMOVE:
364 eventType = wxEVT_TASKBAR_MOVE;
365 break;
366
367 default:
368 break;
369 }
370
371 if (eventType)
372 {
373 wxTaskBarIconEvent event(eventType, this);
374
375 ProcessEvent(event);
376 }
377
378 return 0;
379 }
380
381 LRESULT APIENTRY _EXPORT
382 wxTaskBarIconWindowProc(HWND hWnd, unsigned msg, UINT wParam, LONG lParam)
383 {
384 wxTaskBarIcon *obj = wxTaskBarIcon::FindObjectForHWND((WXHWND) hWnd);
385 if (obj)
386 return obj->WindowProc((WXHWND) hWnd, msg, wParam, lParam);
387 else
388 return DefWindowProc(hWnd, msg, wParam, lParam);
389 }
390
391 #endif
392 // __WIN95__