modules/gui/skins2/x11/x11_window.cpp

   1 /*****************************************************************************
   2  * x11_window.cpp
   3  *****************************************************************************
   4  * Copyright (C) 2003 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Cyril Deguet     <asmax@via.ecp.fr>
   8  *          Olivier Teulière <ipkiss@via.ecp.fr>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 #ifdef X11_SKINS
  26
  27 #include <X11/Xatom.h>
  28
  29 #include "../src/generic_window.hpp"
  30 #include "../src/vlcproc.hpp"
  31 #include "x11_window.hpp"
  32 #include "x11_display.hpp"
  33 #include "x11_graphics.hpp"
  34 #include "x11_dragdrop.hpp"
  35 #include "x11_factory.hpp"
  36
  37
  38 X11Window::X11Window( intf_thread_t *pIntf, GenericWindow &rWindow,
  39                       X11Display &rDisplay, bool dragDrop, bool playOnDrop,
  40                       X11Window *pParentWindow, GenericWindow::WindowType_t type ):
  41     OSWindow( pIntf ), m_rDisplay( rDisplay ), m_pParent( pParentWindow ),
  42     m_dragDrop( dragDrop ), m_type ( type )
  43 {
  44     XSetWindowAttributes attr;
  45     unsigned long valuemask;
  46     string name_type;
  47
  48     if( type == GenericWindow::FullscreenWindow )
  49     {
  50         m_wnd_parent = DefaultRootWindow( XDISPLAY );
  51
  52         int i_screen = DefaultScreen( XDISPLAY );
  53
  54         attr.event_mask = ExposureMask | StructureNotifyMask;
  55         attr.background_pixel = BlackPixel( XDISPLAY, i_screen );
  56         attr.backing_store = Always;
  57         valuemask = CWBackingStore | CWBackPixel | CWEventMask;
  58
  59         if( NET_WM_STATE_FULLSCREEN == None )
  60         {
  61             attr.override_redirect = True;
  62             valuemask = valuemask | CWOverrideRedirect;
  63         }
  64
  65         name_type = "Fullscreen";
  66     }
  67     else if( type == GenericWindow::VoutWindow )
  68     {
  69         m_wnd_parent = pParentWindow->m_wnd;
  70
  71         int i_screen = DefaultScreen( XDISPLAY );
  72
  73         attr.event_mask = ExposureMask | StructureNotifyMask;
  74         attr.backing_store = Always;
  75         attr.background_pixel = BlackPixel( XDISPLAY, i_screen );
  76         valuemask = CWBackingStore | CWBackPixel | CWEventMask;
  77
  78         name_type = "VoutWindow";
  79     }
  80     else
  81     {
  82         m_wnd_parent = DefaultRootWindow( XDISPLAY );
  83
  84         attr.event_mask = ExposureMask | StructureNotifyMask;
  85         valuemask = CWEventMask;
  86
  87         name_type = "TopWindow";
  88     }
  89
  90     // Create the window
  91     m_wnd = XCreateWindow( XDISPLAY, m_wnd_parent, -10, 0, 10, 10, 0, 0,
  92                            InputOutput, CopyFromParent, valuemask, &attr );
  93
  94     // wait for X server to process the previous commands
  95     XSync( XDISPLAY, false );
  96
  97     // Set the colormap for 8bpp mode
  98     if( XPIXELSIZE == 1 )
  99     {
 100         XSetWindowColormap( XDISPLAY, m_wnd, m_rDisplay.getColormap() );
 101     }
 102
 103     // Select events received by the window
 104     long event_mask;
 105     if( type == GenericWindow::VoutWindow )
 106     {
 107         event_mask =  ExposureMask|KeyPressMask|
 108                       LeaveWindowMask|FocusChangeMask;
 109     }
 110     else
 111     {
 112         event_mask =  ExposureMask|KeyPressMask|
 113                       PointerMotionMask|ButtonPressMask|ButtonReleaseMask|
 114                       LeaveWindowMask|FocusChangeMask;
 115     }
 116     XSelectInput( XDISPLAY, m_wnd, event_mask );
 117
 118     // Store a pointer on the generic window in a map
 119     X11Factory *pFactory = (X11Factory*)X11Factory::instance( getIntf() );
 120     pFactory->m_windowMap[m_wnd] = &rWindow;
 121
 122     // Changing decorations
 123     struct {
 124         unsigned long flags;
 125         unsigned long functions;
 126         unsigned long decorations;
 127         signed   long input_mode;
 128         unsigned long status;
 129     } motifWmHints;
 130     Atom hints_atom = XInternAtom( XDISPLAY, "_MOTIF_WM_HINTS", False );
 131     motifWmHints.flags = 2;    // MWM_HINTS_DECORATIONS;
 132     motifWmHints.decorations = 0;
 133     XChangeProperty( XDISPLAY, m_wnd, hints_atom, hints_atom, 32,
 134                      PropModeReplace, (unsigned char *)&motifWmHints,
 135                      sizeof( motifWmHints ) / sizeof( uint32_t ) );
 136
 137     // Drag & drop
 138     if( m_dragDrop )
 139     {
 140         // Create a Dnd object for this window
 141         m_pDropTarget = new X11DragDrop( getIntf(), m_rDisplay, m_wnd,
 142                                          playOnDrop );
 143
 144         // Register the window as a drop target
 145         Atom xdndAtom = XInternAtom( XDISPLAY, "XdndAware", False );
 146         char xdndVersion = 4;
 147         XChangeProperty( XDISPLAY, m_wnd, xdndAtom, XA_ATOM, 32,
 148                          PropModeReplace, (unsigned char *)&xdndVersion, 1 );
 149
 150         // Store a pointer to be used in X11Loop
 151         pFactory->m_dndMap[m_wnd] = m_pDropTarget;
 152     }
 153
 154     // Change the window title
 155     string name_window = "VLC (" + name_type + ")";
 156     XStoreName( XDISPLAY, m_wnd, name_window.c_str() );
 157
 158     // Associate the window to the main "parent" window
 159     XSetTransientForHint( XDISPLAY, m_wnd, m_rDisplay.getMainWindow() );
 160
 161     // initialize Class Hint
 162     XClassHint classhint;
 163     classhint.res_name = (char*) "vlc";
 164     classhint.res_class = (char*) "Vlc";
 165     XSetClassHint( XDISPLAY, m_wnd, &classhint );
 166
 167     // initialize WM_CLIENT_MACHINE
 168     char* hostname = NULL;
 169     long host_name_max = sysconf( _SC_HOST_NAME_MAX );
 170     if( host_name_max <= 0 )
 171         host_name_max = _POSIX_HOST_NAME_MAX;
 172     hostname = new char[host_name_max];
 173     if( hostname && gethostname( hostname, host_name_max ) == 0 )
 174     {
 175         hostname[host_name_max - 1] = '\0';
 176
 177         XTextProperty textprop;
 178         textprop.value = (unsigned char *) hostname;
 179         textprop.encoding = XA_STRING;
 180         textprop.format = 8;
 181         textprop.nitems = strlen( hostname );
 182         XSetWMClientMachine( XDISPLAY, m_wnd, &textprop);
 183     }
 184     delete hostname;
 185
 186     // initialize EWMH pid
 187     pid_t pid = getpid();
 188     XChangeProperty( XDISPLAY, m_wnd, NET_WM_PID, XA_CARDINAL, 32,
 189                      PropModeReplace, (unsigned char *)&pid, 1 );
 190
 191 }
 192
 193
 194 X11Window::~X11Window()
 195 {
 196     X11Factory *pFactory = (X11Factory*)X11Factory::instance( getIntf() );
 197     pFactory->m_windowMap[m_wnd] = NULL;
 198     pFactory->m_dndMap[m_wnd] = NULL;
 199
 200     if( m_dragDrop )
 201     {
 202         delete m_pDropTarget;
 203     }
 204     XDestroyWindow( XDISPLAY, m_wnd );
 205     XSync( XDISPLAY, False );
 206 }
 207
 208 void X11Window::reparent( void* OSHandle, int x, int y, int w, int h )
 209 {
 210     // Reparent the window
 211     Window new_parent =
 212            OSHandle ? (Window) OSHandle : DefaultRootWindow( XDISPLAY );
 213
 214     XReparentWindow( XDISPLAY, m_wnd, new_parent, x, y);
 215     if( w && h )
 216         XResizeWindow( XDISPLAY, m_wnd, w, h );
 217
 218     m_wnd_parent = new_parent;
 219 }
 220
 221
 222 void X11Window::show() const
 223 {
 224     // Map the window
 225     if( m_type == GenericWindow::VoutWindow )
 226     {
 227        XLowerWindow( XDISPLAY, m_wnd );
 228        XMapWindow( XDISPLAY, m_wnd );
 229     }
 230     else if( m_type == GenericWindow::FullscreenWindow )
 231     {
 232         XMapRaised( XDISPLAY, m_wnd );
 233         setFullscreen();
 234         // toggleOnTop( true );
 235     }
 236     else
 237     {
 238         XMapRaised( XDISPLAY, m_wnd );
 239     }
 240 }
 241
 242
 243 void X11Window::hide() const
 244 {
 245     // Unmap the window
 246     XUnmapWindow( XDISPLAY, m_wnd );
 247 }
 248
 249 void X11Window::moveResize( int left, int top, int width, int height ) const
 250 {
 251     if( width && height )
 252         XMoveResizeWindow( XDISPLAY, m_wnd, left, top, width, height );
 253     else
 254         XMoveWindow( XDISPLAY, m_wnd, left, top );
 255 }
 256
 257
 258 void X11Window::raise() const
 259 {
 260     XRaiseWindow( XDISPLAY, m_wnd );
 261 }
 262
 263
 264 void X11Window::setOpacity( uint8_t value ) const
 265 {
 266     if( NET_WM_WINDOW_OPACITY == None )
 267         return;
 268
 269     if( 255==value )
 270         XDeleteProperty(XDISPLAY, m_wnd, NET_WM_WINDOW_OPACITY);
 271     else
 272     {
 273         uint32_t opacity = value * ((uint32_t)-1/255);
 274         XChangeProperty(XDISPLAY, m_wnd, NET_WM_WINDOW_OPACITY, XA_CARDINAL, 32,
 275                         PropModeReplace, (unsigned char *) &opacity, 1L);
 276     }
 277     XSync( XDISPLAY, False );
 278 }
 279
 280
 281 void X11Window::setFullscreen( ) const
 282 {
 283     if( NET_WM_STATE_FULLSCREEN != None )
 284     {
 285         XClientMessageEvent event;
 286         memset( &event, 0, sizeof( XClientMessageEvent ) );
 287
 288         event.type = ClientMessage;
 289         event.message_type = NET_WM_STATE;
 290         event.display = XDISPLAY;
 291         event.window = m_wnd;
 292         event.format = 32;
 293         event.data.l[ 0 ] = 1;
 294         event.data.l[ 1 ] = NET_WM_STATE_FULLSCREEN;
 295
 296         XSendEvent( XDISPLAY,
 297                     DefaultRootWindow( XDISPLAY ),
 298                     False, SubstructureNotifyMask|SubstructureRedirectMask,
 299                     (XEvent*)&event );
 300     }
 301 }
 302
 303
 304 void X11Window::toggleOnTop( bool onTop ) const
 305 {
 306     if( NET_WM_STAYS_ON_TOP != None )
 307     {
 308         /* Switch "on top" status */
 309         XClientMessageEvent event;
 310         memset( &event, 0, sizeof( XClientMessageEvent ) );
 311
 312         event.type = ClientMessage;
 313         event.message_type = NET_WM_STATE;
 314         event.display = XDISPLAY;
 315         event.window = m_wnd;
 316         event.format = 32;
 317         event.data.l[ 0 ] = onTop; /* set property */
 318         event.data.l[ 1 ] = NET_WM_STAYS_ON_TOP;
 319
 320         XSendEvent( XDISPLAY, DefaultRootWindow( XDISPLAY ),
 321                     False, SubstructureNotifyMask|SubstructureRedirectMask, (XEvent*)&event );
 322     }
 323     else if( NET_WM_STATE_ABOVE != None )
 324     {
 325         /* Switch "above" state */
 326         XClientMessageEvent event;
 327         memset( &event, 0, sizeof( XClientMessageEvent ) );
 328
 329         event.type = ClientMessage;
 330         event.message_type = NET_WM_STATE;
 331         event.display = XDISPLAY;
 332         event.window = m_wnd;
 333         event.format = 32;
 334         event.data.l[ 0 ] = onTop; /* set property */
 335         event.data.l[ 1 ] = NET_WM_STATE_ABOVE;
 336
 337         XSendEvent( XDISPLAY, DefaultRootWindow( XDISPLAY ),
 338                     False, SubstructureNotifyMask|SubstructureRedirectMask, (XEvent*)&event );
 339     }
 340 }
 341
 342 #endif