check that the version of __sync_sub_and_fetch that returns a value is supported...

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

diff --git a/src/msw/taskbar.cpp b/src/msw/taskbar.cpp
index c5b9b9b5c1bd0c5b3d746b1f7804222676eeaffe..83aef42cde8cb73f565a636a90ecffa0c8dd6b8b 100644 (file)
--- a/src/msw/taskbar.cpp
+++ b/src/msw/taskbar.cpp
@@ -14,43 +14,32 @@
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__

-#pragma hdrstop
+    #pragma hdrstop

 #endif
 
 #endif
 

+#if wxUSE_TASKBARICON
+

 #ifndef WX_PRECOMP
 #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
 
 #endif
 

-#include "wx/msw/private.h"
-#include "wx/msw/winundef.h"
+#include "wx/msw/wrapshl.h"

 
 #include <string.h>
 #include "wx/taskbar.h"
 
 #include <string.h>
 #include "wx/taskbar.h"

+#include "wx/dynlib.h"

 
 

-#ifdef __WXWINCE__
-    #include <winreg.h>
-    #include <shellapi.h>
+#ifndef NIN_BALLOONTIMEOUT
+    #define NIN_BALLOONTIMEOUT      0x0404
+    #define NIN_BALLOONUSERCLICK    0x0405

 #endif
 
 // initialized on demand
 #endif
 
 // initialized on demand

-UINT   gs_msgTaskbar = 0;
-UINT   gs_msgRestartTaskbar = 0;
-
-#if WXWIN_COMPATIBILITY_2_4
-BEGIN_EVENT_TABLE(wxTaskBarIcon, wxTaskBarIconBase)
-    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
+static UINT gs_msgTaskbar = 0;
+static UINT gs_msgRestartTaskbar = 0;

 
 
 IMPLEMENT_DYNAMIC_CLASS(wxTaskBarIcon, wxEvtHandler)
 
 
 IMPLEMENT_DYNAMIC_CLASS(wxTaskBarIcon, wxEvtHandler)


@@ -59,6 +48,38 @@ IMPLEMENT_DYNAMIC_CLASS(wxTaskBarIcon, wxEvtHandler)
 // implementation
 // ============================================================================
 
 // implementation
 // ============================================================================
 

+// wrapper around Shell_NotifyIcon(): this function is not present in Win95
+// shell32.dll so load it dynamically to allow programs using wxTaskBarIcon to
+// start under this OS
+static BOOL wxShellNotifyIcon(DWORD dwMessage, NOTIFYICONDATA *pData)
+{
+#if wxUSE_DYNLIB_CLASS
+    typedef BOOL (WINAPI *Shell_NotifyIcon_t)(DWORD, NOTIFYICONDATA *);
+
+    static Shell_NotifyIcon_t s_pfnShell_NotifyIcon = NULL;
+    static bool s_initialized = false;
+    if ( !s_initialized )
+    {
+        s_initialized = true;
+
+        wxLogNull noLog;
+        wxDynamicLibrary dllShell("shell32.dll");
+        if ( dllShell.IsLoaded() )
+        {
+            wxDL_INIT_FUNC_AW(s_pfn, Shell_NotifyIcon, dllShell);
+        }
+
+        // NB: it's ok to destroy dllShell here, we link to shell32.dll
+        //     implicitly so it won't be unloaded
+    }
+
+    return s_pfnShell_NotifyIcon ? (*s_pfnShell_NotifyIcon)(dwMessage, pData)
+                                 : FALSE;
+#else // !wxUSE_DYNLIB_CLASS
+    return Shell_NotifyIcon(dwMessage, pData);
+#endif // wxUSE_DYNLIB_CLASS/!wxUSE_DYNLIB_CLASS
+}
+

 // ----------------------------------------------------------------------------
 // wxTaskBarIconWindow: helper window
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // wxTaskBarIconWindow: helper window
 // ----------------------------------------------------------------------------


@@ -127,11 +148,17 @@ wxTaskBarIcon::wxTaskBarIcon()
 
 wxTaskBarIcon::~wxTaskBarIcon()
 {
 
 wxTaskBarIcon::~wxTaskBarIcon()
 {

-    if (m_iconAdded)
+    if ( m_iconAdded )

         RemoveIcon();
 
         RemoveIcon();
 

-    if (m_win)
-        m_win->Destroy();
+    if ( m_win )
+    {
+        // we must use delete and not Destroy() here because the latter will
+        // only schedule the window to be deleted during the next idle event
+        // processing but we may not get any idle events if there are no other
+        // windows left in the program
+        delete m_win;
+    }

 }
 
 // Operations
 }
 
 // Operations


@@ -148,7 +175,7 @@ bool wxTaskBarIcon::SetIcon(const wxIcon& icon, const wxString& tooltip)
     m_icon = icon;
     m_strTooltip = tooltip;
 
     m_icon = icon;
     m_strTooltip = tooltip;
 

-    NotifyIconData notifyData((HWND)m_win->GetHWND());
+    NotifyIconData notifyData(GetHwndOf(m_win));

 
     if (icon.Ok())
     {
 
     if (icon.Ok())
     {


@@ -156,15 +183,16 @@ bool wxTaskBarIcon::SetIcon(const wxIcon& icon, const wxString& tooltip)
         notifyData.hIcon = GetHiconOf(icon);
     }
 
         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() )
     {
     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));
+        wxStrncpy(notifyData.szTip, tooltip.wx_str(), WXSIZEOF(notifyData.szTip));

     }
 
     }
 

-    bool ok = Shell_NotifyIcon(m_iconAdded ? NIM_MODIFY
-                                           : NIM_ADD, &notifyData) != 0;
+    bool ok = wxShellNotifyIcon(m_iconAdded ? NIM_MODIFY
+                                            : NIM_ADD, &notifyData) != 0;

 
     if ( !m_iconAdded && ok )
         m_iconAdded = true;
 
     if ( !m_iconAdded && ok )
         m_iconAdded = true;


@@ -172,6 +200,44 @@ bool wxTaskBarIcon::SetIcon(const wxIcon& icon, const wxString& tooltip)
     return ok;
 }
 
     return ok;
 }
 

+bool
+wxTaskBarIcon::ShowBalloon(const wxString& title,
+                           const wxString& text,
+                           unsigned msec,
+                           int flags)
+{
+    wxCHECK_MSG( m_iconAdded, false,
+                    _T("can't be used before the icon is created") );
+
+    const HWND hwnd = GetHwndOf(m_win);
+
+    // we need to enable version 5.0 behaviour to receive notifications about
+    // the balloon disappearance
+    NotifyIconData notifyData(hwnd);
+    notifyData.uFlags = 0;
+    notifyData.uVersion = 3 /* NOTIFYICON_VERSION for Windows XP */;
+
+    wxShellNotifyIcon(NIM_SETVERSION, &notifyData);
+
+
+    // do show the balloon now
+    notifyData = NotifyIconData(hwnd);
+    notifyData.uFlags |= NIF_INFO;
+    notifyData.uTimeout = msec;
+    wxStrncpy(notifyData.szInfo, text.wx_str(), WXSIZEOF(notifyData.szInfo));
+    wxStrncpy(notifyData.szInfoTitle, title.wx_str(),
+                WXSIZEOF(notifyData.szInfoTitle));
+
+    if ( flags & wxICON_INFORMATION )
+        notifyData.dwInfoFlags |= NIIF_INFO;
+    else if ( flags & wxICON_WARNING )
+        notifyData.dwInfoFlags |= NIIF_WARNING;
+    else if ( flags & wxICON_ERROR )
+        notifyData.dwInfoFlags |= NIIF_ERROR;
+
+    return wxShellNotifyIcon(NIM_MODIFY, &notifyData) != 0;
+}
+

 bool wxTaskBarIcon::RemoveIcon()
 {
     if (!m_iconAdded)
 bool wxTaskBarIcon::RemoveIcon()
 {
     if (!m_iconAdded)


@@ -179,11 +245,12 @@ bool wxTaskBarIcon::RemoveIcon()
 
     m_iconAdded = false;
 
 
     m_iconAdded = false;
 

-    NotifyIconData notifyData((HWND)m_win->GetHWND());
+    NotifyIconData notifyData(GetHwndOf(m_win));

 
 

-    return Shell_NotifyIcon(NIM_DELETE, &notifyData) != 0;
+    return wxShellNotifyIcon(NIM_DELETE, &notifyData) != 0;

 }
 
 }
 

+#if wxUSE_MENUS

 bool wxTaskBarIcon::PopupMenu(wxMenu *menu)
 {
     wxASSERT_MSG( m_win != NULL, _T("taskbar icon not initialized") );
 bool wxTaskBarIcon::PopupMenu(wxMenu *menu)
 {
     wxASSERT_MSG( m_win != NULL, _T("taskbar icon not initialized") );


@@ -204,13 +271,14 @@ bool wxTaskBarIcon::PopupMenu(wxMenu *menu)
 
     menu->UpdateUI();
 
 
     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);
 
 
     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);
 
 
     m_win->PopEventHandler(false);
 


@@ -218,32 +286,7 @@ bool wxTaskBarIcon::PopupMenu(wxMenu *menu)
 
     return rval;
 }
 
     return rval;
 }

-
-#if WXWIN_COMPATIBILITY_2_4
-// Overridables
-void wxTaskBarIcon::OnMouseMove(wxEvent& e)         { e.Skip(); }
-void wxTaskBarIcon::OnLButtonDown(wxEvent& e)       { e.Skip(); }
-void wxTaskBarIcon::OnLButtonUp(wxEvent& e)         { e.Skip(); }
-void wxTaskBarIcon::OnRButtonDown(wxEvent& e)       { e.Skip(); }
-void wxTaskBarIcon::OnRButtonUp(wxEvent& e)         { e.Skip(); }
-void wxTaskBarIcon::OnLButtonDClick(wxEvent& e)     { e.Skip(); }
-void wxTaskBarIcon::OnRButtonDClick(wxEvent& e)     { e.Skip(); }
-
-void wxTaskBarIcon::_OnMouseMove(wxTaskBarIconEvent& e)
-    { OnMouseMove(e);     }
-void wxTaskBarIcon::_OnLButtonDown(wxTaskBarIconEvent& e)
-    { OnLButtonDown(e);   }
-void wxTaskBarIcon::_OnLButtonUp(wxTaskBarIconEvent& e)
-    { OnLButtonUp(e);     }
-void wxTaskBarIcon::_OnRButtonDown(wxTaskBarIconEvent& e)
-    { OnRButtonDown(e);   }
-void wxTaskBarIcon::_OnRButtonUp(wxTaskBarIconEvent& e)
-    { OnRButtonUp(e);     }
-void wxTaskBarIcon::_OnLButtonDClick(wxTaskBarIconEvent& e)
-    { OnLButtonDClick(e); }
-void wxTaskBarIcon::_OnRButtonDClick(wxTaskBarIconEvent& e)
-    { OnRButtonDClick(e); }
-#endif
+#endif // wxUSE_MENUS

 
 void wxTaskBarIcon::RegisterWindowMessages()
 {
 
 void wxTaskBarIcon::RegisterWindowMessages()
 {


@@ -269,18 +312,18 @@ long wxTaskBarIcon::WindowProc(unsigned int msg,
                                unsigned int WXUNUSED(wParam),
                                long lParam)
 {
                                unsigned int WXUNUSED(wParam),
                                long lParam)
 {

-    wxEventType eventType = 0;
-
-    if (msg == gs_msgRestartTaskbar)   // does the icon need to be redrawn?
+    if ( msg == gs_msgRestartTaskbar )   // does the icon need to be redrawn?

     {
         m_iconAdded = false;
         SetIcon(m_icon, m_strTooltip);
     {
         m_iconAdded = false;
         SetIcon(m_icon, m_strTooltip);

+        return 0;

     }
 
     // this function should only be called for gs_msg(Restart)Taskbar messages
     }
 
     // this function should only be called for gs_msg(Restart)Taskbar messages

-    wxASSERT(msg == gs_msgTaskbar);
+    wxASSERT( msg == gs_msgTaskbar );

 
 

-    switch (lParam)
+    wxEventType eventType = 0;
+    switch ( lParam )

     {
         case WM_LBUTTONDOWN:
             eventType = wxEVT_TASKBAR_LEFT_DOWN;
     {
         case WM_LBUTTONDOWN:
             eventType = wxEVT_TASKBAR_LEFT_DOWN;


@@ -310,11 +353,16 @@ long wxTaskBarIcon::WindowProc(unsigned int msg,
             eventType = wxEVT_TASKBAR_MOVE;
             break;
 
             eventType = wxEVT_TASKBAR_MOVE;
             break;
 

-        default:
+        case NIN_BALLOONTIMEOUT:
+            eventType = wxEVT_TASKBAR_BALLOON_TIMEOUT;
+            break;
+
+        case NIN_BALLOONUSERCLICK:
+            eventType = wxEVT_TASKBAR_BALLOON_CLICK;

             break;
     }
 
             break;
     }
 

-    if (eventType)
+    if ( eventType )

     {
         wxTaskBarIconEvent event(eventType, this);
 
     {
         wxTaskBarIconEvent event(eventType, this);
 


@@ -323,3 +371,6 @@ long wxTaskBarIcon::WindowProc(unsigned int msg,
 
     return 0;
 }
 
     return 0;
 }

+
+#endif // wxUSE_TASKBARICON
+