X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/4676948b6814c97b93c431a8cbcd8c0352c87ba9..a24dc1a836159cbec24c577d9e576f8dbafad728:/src/msw/taskbar.cpp diff --git a/src/msw/taskbar.cpp b/src/msw/taskbar.cpp index cc2b9bc9c5..57ce4633f8 100644 --- a/src/msw/taskbar.cpp +++ b/src/msw/taskbar.cpp @@ -3,14 +3,14 @@ // Purpose: Implements wxTaskBarIcon class for manipulating icons on // the Windows task bar. // Author: Julian Smart -// Modified by: +// Modified by: Vaclav Slavik // Created: 24/3/98 // RCS-ID: $Id$ // Copyright: (c) // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma implementation "taskbar.h" #endif @@ -46,16 +46,6 @@ #include #endif -#include "wx/listimpl.cpp" -WX_DEFINE_LIST(wxTaskBarIconList); - -LRESULT APIENTRY _EXPORT -wxTaskBarIconWindowProc( HWND hWnd, unsigned msg, UINT wParam, LONG lParam ); - -wxChar *wxTaskBarWindowClass = (wxChar*) wxT("wxTaskBarWindowClass"); - -wxTaskBarIconList wxTaskBarIcon::sm_taskBarIcons; - // initialized on demand UINT gs_msgTaskbar = 0; UINT gs_msgRestartTaskbar = 0; @@ -79,6 +69,41 @@ IMPLEMENT_DYNAMIC_CLASS(wxTaskBarIcon, wxEvtHandler) // implementation // ============================================================================ +// ---------------------------------------------------------------------------- +// wxTaskBarIconWindow: helper window +// ---------------------------------------------------------------------------- + +// NB: this class serves two purposes: +// 1. win32 needs a HWND associated with taskbar icon, this provides it +// 2. we need wxTopLevelWindow so that the app doesn't exit when +// last frame is closed but there still is a taskbar icon +class wxTaskBarIconWindow : public wxFrame +{ +public: + wxTaskBarIconWindow(wxTaskBarIcon *icon) + : wxFrame(NULL, -1, wxEmptyString, wxDefaultPosition, wxDefaultSize, 0), + m_icon(icon) + { + } + + WXLRESULT MSWWindowProc(WXUINT msg, + WXWPARAM wParam, WXLPARAM lParam) + { + if (msg == gs_msgRestartTaskbar || msg == gs_msgTaskbar) + { + return m_icon->WindowProc(msg, wParam, lParam); + } + else + { + return wxFrame::MSWWindowProc(msg, wParam, lParam); + } + } + +private: + wxTaskBarIcon *m_icon; +}; + + // ---------------------------------------------------------------------------- // NotifyIconData: wrapper around NOTIFYICONDATA // ---------------------------------------------------------------------------- @@ -105,41 +130,35 @@ struct NotifyIconData : public NOTIFYICONDATA wxTaskBarIcon::wxTaskBarIcon() { - m_hWnd = 0; + m_win = NULL; m_iconAdded = false; - - AddObject(this); - - if (RegisterWindowClass()) - m_hWnd = CreateTaskBarWindow(); + RegisterWindowMessages(); } wxTaskBarIcon::~wxTaskBarIcon() { - RemoveObject(this); - if (m_iconAdded) - { RemoveIcon(); - } - if (m_hWnd) - { - ::DestroyWindow((HWND) m_hWnd); - m_hWnd = 0; - } + if (m_win) + m_win->Destroy(); } // Operations bool wxTaskBarIcon::SetIcon(const wxIcon& icon, const wxString& tooltip) { - if (!IsOk()) - return false; + // NB: we have to create the window lazily because of backward compatiblity, + // old aplications may create wxTaskBarIcon instance before wxApp + // is initialized (as samples/taskbar used to do) + if (!m_win) + { + m_win = new wxTaskBarIconWindow(this); + } m_icon = icon; m_strTooltip = tooltip; - NotifyIconData notifyData(m_hWnd); + NotifyIconData notifyData((HWND)m_win->GetHWND()); if (icon.Ok()) { @@ -170,13 +189,15 @@ bool wxTaskBarIcon::RemoveIcon() m_iconAdded = false; - NotifyIconData notifyData(m_hWnd); + NotifyIconData notifyData((HWND)m_win->GetHWND()); return Shell_NotifyIcon(NIM_DELETE, ¬ifyData) != 0; } bool wxTaskBarIcon::PopupMenu(wxMenu *menu) { + wxASSERT_MSG( m_win != NULL, _T("taskbar icon not initialized") ); + static bool s_inPopup = false; if (s_inPopup) @@ -184,32 +205,24 @@ bool wxTaskBarIcon::PopupMenu(wxMenu *menu) s_inPopup = true; - bool rval = false; - wxWindow* win; int x, y; wxGetMousePosition(&x, &y); - // is wxFrame the best window type to use??? - win = new wxFrame(NULL, -1, wxEmptyString, wxPoint(x,y), wxSize(-1,-1), 0); - win->PushEventHandler(this); - - // Remove from record of top-level windows, or will confuse wxWindows - // if we try to exit right now. - wxTopLevelWindows.DeleteObject(win); + m_win->Move(x, y); + + m_win->PushEventHandler(this); menu->UpdateUI(); // Work around a WIN32 bug - ::SetForegroundWindow ((HWND) win->GetHWND ()); + ::SetForegroundWindow((HWND)m_win->GetHWND()); - rval = win->PopupMenu(menu, 0, 0); + bool rval = m_win->PopupMenu(menu, 0, 0); // Work around a WIN32 bug - ::PostMessage ((HWND) win->GetHWND(),WM_NULL,0,0L); + ::PostMessage((HWND)m_win->GetHWND(), WM_NULL, 0, 0L); - win->PopEventHandler(false); - win->Destroy(); - delete win; + m_win->PopEventHandler(false); s_inPopup = false; @@ -235,93 +248,28 @@ void wxTaskBarIcon::_OnLButtonDClick(wxEvent& e) { OnLButtonDClick(e); } void wxTaskBarIcon::_OnRButtonDClick(wxEvent& e) { OnRButtonDClick(e); } #endif -wxTaskBarIcon* wxTaskBarIcon::FindObjectForHWND(WXHWND hWnd) -{ - wxTaskBarIconList::compatibility_iterator node = sm_taskBarIcons.GetFirst(); - while (node) - { - wxTaskBarIcon *obj = node->GetData(); - if (obj->GetHWND() == hWnd) - return obj; - node = node->GetNext(); - } - return NULL; -} - -void wxTaskBarIcon::AddObject(wxTaskBarIcon* obj) -{ - sm_taskBarIcons.Append(obj); -} - -void wxTaskBarIcon::RemoveObject(wxTaskBarIcon* obj) -{ - sm_taskBarIcons.DeleteObject(obj); -} - -bool wxTaskBarIcon::RegisterWindowClass() +void wxTaskBarIcon::RegisterWindowMessages() { static bool s_registered = false; - if ( s_registered ) - return true; - - // Taskbar restart msg will be sent to us if the icon needs to be redrawn - gs_msgRestartTaskbar = RegisterWindowMessage(wxT("TaskbarCreated")); - - // Also register the taskbar message here - gs_msgTaskbar = ::RegisterWindowMessage(wxT("wxTaskBarIconMessage")); - - // set up and register window class - WNDCLASS wc; - wc.style = CS_HREDRAW | CS_VREDRAW; - wc.lpfnWndProc = (WNDPROC) wxTaskBarIconWindowProc; - wc.cbClsExtra = 0; - wc.cbWndExtra = 0; - wc.hInstance = wxGetInstance(); - wc.hIcon = 0; - wc.hCursor = 0; - wc.hbrBackground = 0; - wc.lpszMenuName = NULL; - wc.lpszClassName = wxTaskBarWindowClass; - - if ( !::RegisterClass(&wc) ) - { - wxLogLastError(_T("RegisterClass(taskbar icon)")); - - return false; - } - - s_registered = true; + if ( !s_registered ) + { + // Taskbar restart msg will be sent to us if the icon needs to be redrawn + gs_msgRestartTaskbar = RegisterWindowMessage(wxT("TaskbarCreated")); - return true; -} + // Also register the taskbar message here + gs_msgTaskbar = ::RegisterWindowMessage(wxT("wxTaskBarIconMessage")); -WXHWND wxTaskBarIcon::CreateTaskBarWindow() -{ - HINSTANCE hInstance = GetModuleHandle(NULL); - - HWND hWnd = CreateWindowEx (0, wxTaskBarWindowClass, - wxT("wxTaskBarWindow"), - WS_OVERLAPPED, - 0, - 0, - 10, - 10, - NULL, - (HMENU) 0, - hInstance, - NULL); - - return (WXHWND) hWnd; + s_registered = true; + } } // ---------------------------------------------------------------------------- // wxTaskBarIcon window proc // ---------------------------------------------------------------------------- -long wxTaskBarIcon::WindowProc(WXHWND hWnd, - unsigned int msg, - unsigned int wParam, +long wxTaskBarIcon::WindowProc(unsigned int msg, + unsigned int WXUNUSED(wParam), long lParam) { wxEventType eventType = 0; @@ -332,8 +280,8 @@ long wxTaskBarIcon::WindowProc(WXHWND hWnd, SetIcon(m_icon, m_strTooltip); } - if (msg != gs_msgTaskbar) - return DefWindowProc((HWND) hWnd, msg, wParam, lParam); + // this function should only be called for gs_msg(Restart)Taskbar messages + wxASSERT(msg == gs_msgTaskbar); switch (lParam) { @@ -379,15 +327,4 @@ long wxTaskBarIcon::WindowProc(WXHWND hWnd, return 0; } -LRESULT APIENTRY _EXPORT -wxTaskBarIconWindowProc(HWND hWnd, unsigned msg, UINT wParam, LONG lParam) -{ - wxTaskBarIcon *obj = wxTaskBarIcon::FindObjectForHWND((WXHWND) hWnd); - if (obj) - return obj->WindowProc((WXHWND) hWnd, msg, wParam, lParam); - else - return DefWindowProc(hWnd, msg, wParam, lParam); -} - -#endif - // __WIN95__ +#endif // __WIN95__