src/unix/taskbarx11.cpp

   1 /////////////////////////////////////////////////////////////////////////
   2 // File:        taskbar.cpp
   3 // Purpose:     wxTaskBarIcon class for common Unix desktops
   4 // Author:      Vaclav Slavik
   5 // Modified by:
   6 // Created:     04/04/2003
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Vaclav Slavik, 2003
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////
  11
  12 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  13 #pragma implementation "taskbarx11.h"
  14 #endif
  15
  16
  17 // NB: This implementation does *not* work with every X11 window manager.
  18 //     Currently only GNOME 1.2 and KDE 1,2,3 methods are implemented.
  19 //
  20 //     FIXME: implement:
  21 //               - GNOME 2 support (see www.freedesktop.org for specification;
  22 //                 KDE 3 uses this method as well, even though legacy KDE
  23 //                 method we implement works as well)
  24 //               - IceWM and XFCE support (?)
  25 //
  26 //     Thanks to Ian Campbell, author of XMMS Status Docklet, for publishing
  27 //     KDE and GNOME 1.2 methods.
  28
  29
  30 // For compilers that support precompilation, includes "wx.h".
  31 #include "wx/wxprec.h"
  32
  33 #include "wx/taskbar.h"
  34 #include "wx/frame.h"
  35 #include "wx/bitmap.h"
  36 #include "wx/statbmp.h"
  37
  38 #ifdef __VMS
  39 #pragma message disable nosimpint
  40 #endif
  41 #include <X11/Xlib.h>
  42 #include <X11/Xatom.h>
  43 #ifdef __VMS
  44 #pragma message enable nosimpint
  45 #endif
  46
  47 // ----------------------------------------------------------------------------
  48 // toolkit dependent methods to set properties on helper window:
  49 // ----------------------------------------------------------------------------
  50
  51 #if defined(__WXGTK__)
  52     #include <gdk/gdk.h>
  53     #include <gdk/gdkx.h>
  54     #include <gtk/gtk.h>
  55     #define GetDisplay()        GDK_DISPLAY()
  56     #define GetXWindow(wxwin)   GDK_WINDOW_XWINDOW((wxwin)->m_widget->window)
  57 #elif defined(__WXX11__) || defined(__WXMOTIF__)
  58     #include "wx/x11/privx.h"
  59     #define GetDisplay()        ((Display*)wxGlobalDisplay())
  60     #define GetXWindow(wxwin)   ((Window)(wxwin)->GetHandle())
  61 #else
  62     #error "You must define X11 accessors for this port!"
  63 #endif
  64
  65 // ----------------------------------------------------------------------------
  66 // code for making wxFrame a toolbar icon by setting appropriate properties:
  67 // ----------------------------------------------------------------------------
  68
  69 static bool wxMakeTaskBarIcon(wxFrame *wnd)
  70 {
  71 #ifdef __WXGTK__
  72     gtk_widget_realize(wnd->m_widget);
  73 #endif
  74
  75     long data[1];
  76
  77     // KDE 2 & KDE 3:
  78     Atom _KDE_NET_WM_SYSTEM_TRAY_WINDOW_FOR =
  79         XInternAtom(GetDisplay(), "_KDE_NET_WM_SYSTEM_TRAY_WINDOW_FOR", False);
  80     data[0] = 0;
  81     XChangeProperty(GetDisplay(), GetXWindow(wnd),
  82                     _KDE_NET_WM_SYSTEM_TRAY_WINDOW_FOR,
  83                     XA_WINDOW, 32,
  84                     PropModeReplace, (unsigned char*)data, 1);
  85
  86     // GNOME 1.2 & KDE 1:
  87     Atom KWM_DOCKWINDOW =
  88         XInternAtom(GetDisplay(), "KWM_DOCKWINDOW", False);
  89     data[0] = 1;
  90     XChangeProperty(GetDisplay(), GetXWindow(wnd),
  91                     KWM_DOCKWINDOW,
  92                     KWM_DOCKWINDOW, 32,
  93                     PropModeReplace, (unsigned char*)data, 1);
  94
  95     return true;
  96 }
  97
  98 // ----------------------------------------------------------------------------
  99 // wxTaskBarIconArea is the real window that shows the icon:
 100 // ----------------------------------------------------------------------------
 101
 102 class wxTaskBarIconArea : public wxStaticBitmap
 103 {
 104 public:
 105     wxTaskBarIconArea(wxTaskBarIcon *icon,
 106                       wxWindow *parent, const wxBitmap &bmp)
 107         : wxStaticBitmap(parent, -1, bmp), m_icon(icon) {}
 108
 109 protected:
 110     void OnMouseEvent(wxMouseEvent& event);
 111     void OnMenuEvent(wxCommandEvent& event);
 112
 113     wxTaskBarIcon *m_icon;
 114
 115     DECLARE_EVENT_TABLE()
 116 };
 117
 118 BEGIN_EVENT_TABLE(wxTaskBarIconArea, wxStaticBitmap)
 119     EVT_MOUSE_EVENTS(wxTaskBarIconArea::OnMouseEvent)
 120     EVT_MENU(-1, wxTaskBarIconArea::OnMenuEvent)
 121 END_EVENT_TABLE()
 122
 123 void wxTaskBarIconArea::OnMouseEvent(wxMouseEvent& event)
 124 {
 125     wxEventType type = 0;
 126     wxEventType mtype = event.GetEventType();
 127
 128     if (mtype == wxEVT_LEFT_DOWN)
 129         type = wxEVT_TASKBAR_LEFT_DOWN;
 130     else if (mtype == wxEVT_LEFT_UP)
 131         type = wxEVT_TASKBAR_LEFT_UP;
 132     else if (mtype == wxEVT_LEFT_DCLICK)
 133         type = wxEVT_TASKBAR_LEFT_DCLICK;
 134     else if (mtype == wxEVT_RIGHT_DOWN)
 135         type = wxEVT_TASKBAR_RIGHT_DOWN;
 136     else if (mtype == wxEVT_RIGHT_UP)
 137         type = wxEVT_TASKBAR_RIGHT_UP;
 138     else if (mtype == wxEVT_RIGHT_DCLICK)
 139         type = wxEVT_TASKBAR_RIGHT_DCLICK;
 140     else if (mtype == wxEVT_MOTION)
 141         type = wxEVT_TASKBAR_MOVE;
 142     else
 143         return;
 144
 145    wxTaskBarIconEvent e(type, m_icon);
 146    m_icon->ProcessEvent(e);
 147 }
 148
 149 void wxTaskBarIconArea::OnMenuEvent(wxCommandEvent& event)
 150 {
 151     m_icon->ProcessEvent(event);
 152 }
 153
 154 // ----------------------------------------------------------------------------
 155 // wxTaskBarIcon class:
 156 // ----------------------------------------------------------------------------
 157
 158 IMPLEMENT_DYNAMIC_CLASS(wxTaskBarIcon, wxEvtHandler)
 159
 160 wxTaskBarIcon::wxTaskBarIcon() : m_iconWnd(NULL)
 161 {
 162 }
 163
 164 wxTaskBarIcon::~wxTaskBarIcon()
 165 {
 166     if (m_iconWnd)
 167         RemoveIcon();
 168 }
 169
 170 bool wxTaskBarIcon::IsOk() const
 171 {
 172     return true;
 173 }
 174
 175 bool wxTaskBarIcon::IsIconInstalled() const
 176 {
 177     return m_iconWnd != NULL;
 178 }
 179
 180 bool wxTaskBarIcon::SetIcon(const wxIcon& icon, const wxString& tooltip)
 181 {
 182     if (m_iconWnd)
 183         RemoveIcon();
 184
 185     m_iconWnd = new wxFrame(NULL, -1, wxT("taskbar icon"),
 186                             wxDefaultPosition, wxDefaultSize,
 187                             wxDEFAULT_FRAME_STYLE | wxFRAME_NO_TASKBAR);
 188     wxBitmap bmp;
 189     bmp.CopyFromIcon(icon);
 190     wxTaskBarIconArea *area = new wxTaskBarIconArea(this, m_iconWnd, bmp);
 191     m_iconWnd->SetClientSize(area->GetSize());
 192 #if wxUSE_TOOLTIPS
 193     if (!tooltip.empty())
 194         area->SetToolTip(tooltip);
 195 #endif
 196     if (wxMakeTaskBarIcon(m_iconWnd))
 197     {
 198         m_iconWnd->Show();
 199         m_iconArea = area;
 200         return true;
 201     }
 202     else
 203     {
 204         m_iconWnd->Destroy();
 205         m_iconWnd = NULL;
 206         return false;
 207     }
 208 }
 209
 210 bool wxTaskBarIcon::RemoveIcon()
 211 {
 212     if (!m_iconWnd)
 213         return false;
 214     m_iconWnd->Destroy();
 215     m_iconWnd = NULL;
 216     return true;
 217 }
 218
 219 bool wxTaskBarIcon::PopupMenu(wxMenu *menu)
 220 {
 221     if (!m_iconWnd)
 222         return false;
 223     wxSize size(m_iconArea->GetSize());
 224     m_iconArea->PopupMenu(menu, size.x/2, size.y/2);
 225     return true;
 226 }