don't overwrite the existing local file if we failed to open it but it does exist

[wxWidgets.git] / src / msw / taskbar.cpp

diff --git a/src/msw/taskbar.cpp b/src/msw/taskbar.cpp
index 57ce4633f89ea0e161a69ce3a3cd517d76b787b2..0a6277803fba8dfd6c30c723d6e130b9561d1cc2 100644 (file)
--- a/src/msw/taskbar.cpp
+++ b/src/msw/taskbar.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////
-// File:        taskbar.cpp
+// File:        src/msw/taskbar.cpp
 // Purpose:     Implements wxTaskBarIcon class for manipulating icons on
 //              the Windows task bar.
 // Author:      Julian Smart
@@ -10,37 +10,28 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "taskbar.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
-#pragma hdrstop
+    #pragma hdrstop
 #endif
 
+#if wxUSE_TASKBARICON
+
 #ifndef WX_PRECOMP
-#include "wx/defs.h"
-#include "wx/window.h"
-#include "wx/frame.h"
-#include "wx/utils.h"
-#include "wx/menu.h"
+    #include "wx/window.h"
+    #include "wx/frame.h"
+    #include "wx/utils.h"
+    #include "wx/menu.h"
 #endif
 
-#if defined(__WIN95__)
-
 #include "wx/msw/private.h"
 #include "wx/msw/winundef.h"
 
 #include <string.h>
 #include "wx/taskbar.h"
 
-#ifdef __GNUWIN32_OLD__
-    #include "wx/msw/gnuwin32/extra.h"
-#endif
-
 #ifdef __WXWINCE__
     #include <winreg.h>
     #include <shellapi.h>
@@ -50,18 +41,6 @@
 UINT   gs_msgTaskbar = 0;
 UINT   gs_msgRestartTaskbar = 0;
 
-#if WXWIN_COMPATIBILITY_2_4
-BEGIN_EVENT_TABLE(wxTaskBarIcon, wxEvtHandler)
-    EVT_TASKBAR_MOVE         (wxTaskBarIcon::_OnMouseMove)
-    EVT_TASKBAR_LEFT_DOWN    (wxTaskBarIcon::_OnLButtonDown)
-    EVT_TASKBAR_LEFT_UP      (wxTaskBarIcon::_OnLButtonUp)
-    EVT_TASKBAR_RIGHT_DOWN   (wxTaskBarIcon::_OnRButtonDown)
-    EVT_TASKBAR_RIGHT_UP     (wxTaskBarIcon::_OnRButtonUp)
-    EVT_TASKBAR_LEFT_DCLICK  (wxTaskBarIcon::_OnLButtonDClick)
-    EVT_TASKBAR_RIGHT_DCLICK (wxTaskBarIcon::_OnRButtonDClick)
-END_EVENT_TABLE()
-#endif
-
 
 IMPLEMENT_DYNAMIC_CLASS(wxTaskBarIcon, wxEvtHandler)
 
@@ -81,11 +60,11 @@ class wxTaskBarIconWindow : public wxFrame
 {
 public:
     wxTaskBarIconWindow(wxTaskBarIcon *icon)
-        : wxFrame(NULL, -1, wxEmptyString, wxDefaultPosition, wxDefaultSize, 0),
+        : wxFrame(NULL, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, 0),
           m_icon(icon)
     {
     }
-    
+
     WXLRESULT MSWWindowProc(WXUINT msg,
                             WXWPARAM wParam, WXLPARAM lParam)
     {
@@ -103,7 +82,7 @@ private:
     wxTaskBarIcon *m_icon;
 };
 
-    
+
 // ----------------------------------------------------------------------------
 // NotifyIconData: wrapper around NOTIFYICONDATA
 // ----------------------------------------------------------------------------
@@ -147,8 +126,8 @@ wxTaskBarIcon::~wxTaskBarIcon()
 // Operations
 bool wxTaskBarIcon::SetIcon(const wxIcon& icon, const wxString& tooltip)
 {
-    // NB: we have to create the window lazily because of backward compatiblity,
-    //     old aplications may create wxTaskBarIcon instance before wxApp
+    // NB: we have to create the window lazily because of backward compatibility,
+    //     old applications may create a wxTaskBarIcon instance before wxApp
     //     is initialized (as samples/taskbar used to do)
     if (!m_win)
     {
@@ -158,7 +137,7 @@ bool wxTaskBarIcon::SetIcon(const wxIcon& icon, const wxString& tooltip)
     m_icon = icon;
     m_strTooltip = tooltip;
 
-    NotifyIconData notifyData((HWND)m_win->GetHWND());
+    NotifyIconData notifyData(GetHwndOf(m_win));
 
     if (icon.Ok())
     {
@@ -166,10 +145,11 @@ bool wxTaskBarIcon::SetIcon(const wxIcon& icon, const wxString& tooltip)
         notifyData.hIcon = GetHiconOf(icon);
     }
 
+    // set NIF_TIP even for an empty tooltip: otherwise it would be impossible
+    // to remove an existing tooltip using this function
+    notifyData.uFlags |= NIF_TIP;
     if ( !tooltip.empty() )
     {
-        notifyData.uFlags |= NIF_TIP;
-//        lstrcpyn(notifyData.szTip, tooltip.c_str(), WXSIZEOF(notifyData.szTip));
         wxStrncpy(notifyData.szTip, tooltip.c_str(), WXSIZEOF(notifyData.szTip));
     }
 
@@ -189,11 +169,12 @@ bool wxTaskBarIcon::RemoveIcon()
 
     m_iconAdded = false;
 
-    NotifyIconData notifyData((HWND)m_win->GetHWND());
+    NotifyIconData notifyData(GetHwndOf(m_win));
 
     return Shell_NotifyIcon(NIM_DELETE, &notifyData) != 0;
 }
 
+#if wxUSE_MENUS
 bool wxTaskBarIcon::PopupMenu(wxMenu *menu)
 {
     wxASSERT_MSG( m_win != NULL, _T("taskbar icon not initialized") );
@@ -209,18 +190,19 @@ bool wxTaskBarIcon::PopupMenu(wxMenu *menu)
     wxGetMousePosition(&x, &y);
 
     m_win->Move(x, y);
-    
+
     m_win->PushEventHandler(this);
 
     menu->UpdateUI();
 
-    // Work around a WIN32 bug
-    ::SetForegroundWindow((HWND)m_win->GetHWND());
+    // the SetForegroundWindow() and PostMessage() calls are needed to work
+    // around Win32 bug with the popup menus shown for the notifications as
+    // documented at http://support.microsoft.com/kb/q135788/
+    ::SetForegroundWindow(GetHwndOf(m_win));
 
     bool rval = m_win->PopupMenu(menu, 0, 0);
 
-    // Work around a WIN32 bug
-    ::PostMessage((HWND)m_win->GetHWND(), WM_NULL, 0, 0L);
+    ::PostMessage(GetHwndOf(m_win), WM_NULL, 0, 0L);
 
     m_win->PopEventHandler(false);
 
@@ -228,32 +210,14 @@ bool wxTaskBarIcon::PopupMenu(wxMenu *menu)
 
     return rval;
 }
-
-#if WXWIN_COMPATIBILITY_2_4
-// Overridables
-void wxTaskBarIcon::OnMouseMove(wxEvent&)         {}
-void wxTaskBarIcon::OnLButtonDown(wxEvent&)       {}
-void wxTaskBarIcon::OnLButtonUp(wxEvent&)         {}
-void wxTaskBarIcon::OnRButtonDown(wxEvent&)       {}
-void wxTaskBarIcon::OnRButtonUp(wxEvent&)         {}
-void wxTaskBarIcon::OnLButtonDClick(wxEvent&)     {}
-void wxTaskBarIcon::OnRButtonDClick(wxEvent&)     {}
-
-void wxTaskBarIcon::_OnMouseMove(wxEvent& e)      { OnMouseMove(e);     }
-void wxTaskBarIcon::_OnLButtonDown(wxEvent& e)    { OnLButtonDown(e);   }
-void wxTaskBarIcon::_OnLButtonUp(wxEvent& e)      { OnLButtonUp(e);     }
-void wxTaskBarIcon::_OnRButtonDown(wxEvent& e)    { OnRButtonDown(e);   }
-void wxTaskBarIcon::_OnRButtonUp(wxEvent& e)      { OnRButtonUp(e);     }
-void wxTaskBarIcon::_OnLButtonDClick(wxEvent& e)  { OnLButtonDClick(e); }
-void wxTaskBarIcon::_OnRButtonDClick(wxEvent& e)  { OnRButtonDClick(e); }
-#endif
+#endif // wxUSE_MENUS
 
 void wxTaskBarIcon::RegisterWindowMessages()
 {
     static bool s_registered = false;
 
     if ( !s_registered )
-    {   
+    {
         // Taskbar restart msg will be sent to us if the icon needs to be redrawn
         gs_msgRestartTaskbar = RegisterWindowMessage(wxT("TaskbarCreated"));
 
@@ -327,4 +291,5 @@ long wxTaskBarIcon::WindowProc(unsigned int msg,
     return 0;
 }
 
-#endif // __WIN95__
+#endif // wxUSE_TASKBARICON
+