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 #include <assert.h>
  38
  39 X11Window::X11Window( intf_thread_t *pIntf, GenericWindow &rWindow,
  40                       X11Display &rDisplay, bool dragDrop, bool playOnDrop,
  41                       X11Window *pParentWindow, GenericWindow::WindowType_t type ):
  42     OSWindow( pIntf ), m_rDisplay( rDisplay ), m_pParent( pParentWindow ),
  43     m_dragDrop( dragDrop ), m_type ( type )
  44 {
  45     XSetWindowAttributes attr;
  46     unsigned long valuemask;
  47     string name_type;
  48
  49     if( type == GenericWindow::FullscreenWindow )
  50     {
  51         m_wnd_parent = DefaultRootWindow( XDISPLAY );
  52
  53         int i_screen = DefaultScreen( XDISPLAY );
  54
  55         attr.event_mask = ExposureMask | StructureNotifyMask;
  56         attr.background_pixel = BlackPixel( XDISPLAY, i_screen );
  57         attr.backing_store = Always;
  58         valuemask = CWBackingStore | CWBackPixel | CWEventMask;
  59
  60         if( NET_WM_STATE_FULLSCREEN == None )
  61         {
  62             attr.override_redirect = True;
  63             valuemask = valuemask | CWOverrideRedirect;
  64         }
  65
  66         name_type = "Fullscreen";
  67     }
  68     else if( type == GenericWindow::VoutWindow )
  69     {
  70         m_wnd_parent = pParentWindow->m_wnd;
  71
  72         int i_screen = DefaultScreen( XDISPLAY );
  73
  74         attr.event_mask = ExposureMask | StructureNotifyMask;
  75         attr.backing_store = Always;
  76         attr.background_pixel = BlackPixel( XDISPLAY, i_screen );
  77         valuemask = CWBackingStore | CWBackPixel | CWEventMask;
  78
  79         name_type = "VoutWindow";
  80     }
  81     else
  82     {
  83         m_wnd_parent = DefaultRootWindow( XDISPLAY );
  84
  85         attr.event_mask = ExposureMask | StructureNotifyMask;
  86         valuemask = CWEventMask;
  87
  88         name_type = "TopWindow";
  89     }
  90
  91     // Create the window
  92     m_wnd = XCreateWindow( XDISPLAY, m_wnd_parent, -10, 0, 10, 10, 0, 0,
  93                            InputOutput, CopyFromParent, valuemask, &attr );
  94
  95     // wait for X server to process the previous commands
  96     XSync( XDISPLAY, false );
  97
  98     // Set the colormap for 8bpp mode
  99     if( XPIXELSIZE == 1 )
 100     {
 101         XSetWindowColormap( XDISPLAY, m_wnd, m_rDisplay.getColormap() );
 102     }
 103
 104     // Select events received by the window
 105     long event_mask;
 106     if( type == GenericWindow::VoutWindow )
 107     {
 108         event_mask =  ExposureMask|KeyPressMask|
 109                       LeaveWindowMask|FocusChangeMask;
 110     }
 111     else
 112     {
 113         event_mask =  ExposureMask|KeyPressMask|
 114                       PointerMotionMask|ButtonPressMask|ButtonReleaseMask|
 115                       LeaveWindowMask|FocusChangeMask;
 116     }
 117     XSelectInput( XDISPLAY, m_wnd, event_mask );
 118
 119     // Store a pointer on the generic window in a map
 120     X11Factory *pFactory = (X11Factory*)X11Factory::instance( getIntf() );
 121     pFactory->m_windowMap[m_wnd] = &rWindow;
 122
 123     // Changing decorations
 124     struct {
 125         unsigned long flags;
 126         unsigned long functions;
 127         unsigned long decorations;
 128         signed   long input_mode;
 129         unsigned long status;
 130     } motifWmHints;
 131     Atom hints_atom = XInternAtom( XDISPLAY, "_MOTIF_WM_HINTS", False );
 132     motifWmHints.flags = 2;    // MWM_HINTS_DECORATIONS;
 133     motifWmHints.decorations = 0;
 134     XChangeProperty( XDISPLAY, m_wnd, hints_atom, hints_atom, 32,
 135                      PropModeReplace, (unsigned char *)&motifWmHints,
 136                      sizeof( motifWmHints ) / sizeof( uint32_t ) );
 137
 138     // Drag & drop
 139     if( m_dragDrop )
 140     {
 141         // Create a Dnd object for this window
 142         m_pDropTarget = new X11DragDrop( getIntf(), m_rDisplay, m_wnd,
 143                                          playOnDrop );
 144
 145         // Register the window as a drop target
 146         Atom xdndAtom = XInternAtom( XDISPLAY, "XdndAware", False );
 147         char xdndVersion = 4;
 148         XChangeProperty( XDISPLAY, m_wnd, xdndAtom, XA_ATOM, 32,
 149                          PropModeReplace, (unsigned char *)&xdndVersion, 1 );
 150
 151         // Store a pointer to be used in X11Loop
 152         pFactory->m_dndMap[m_wnd] = m_pDropTarget;
 153     }
 154
 155     // Change the window title
 156     string name_window = "VLC (" + name_type + ")";
 157     XStoreName( XDISPLAY, m_wnd, name_window.c_str() );
 158
 159     // Associate the window to the main "parent" window
 160     XSetTransientForHint( XDISPLAY, m_wnd, m_rDisplay.getMainWindow() );
 161
 162     // initialize Class Hint
 163     XClassHint classhint;
 164     classhint.res_name = (char*) "vlc";
 165     classhint.res_class = (char*) "Vlc";
 166     XSetClassHint( XDISPLAY, m_wnd, &classhint );
 167
 168     // initialize WM_CLIENT_MACHINE
 169     char* hostname = NULL;
 170     long host_name_max = sysconf( _SC_HOST_NAME_MAX );
 171     if( host_name_max <= 0 )
 172         host_name_max = _POSIX_HOST_NAME_MAX;
 173     hostname = new char[host_name_max];
 174     if( hostname && gethostname( hostname, host_name_max ) == 0 )
 175     {
 176         hostname[host_name_max - 1] = '\0';
 177
 178         XTextProperty textprop;
 179         textprop.value = (unsigned char *) hostname;
 180         textprop.encoding = XA_STRING;
 181         textprop.format = 8;
 182         textprop.nitems = strlen( hostname );
 183         XSetWMClientMachine( XDISPLAY, m_wnd, &textprop);
 184     }
 185     delete[] hostname;
 186
 187     // initialize EWMH pid
 188     pid_t pid = getpid();
 189     assert(  NET_WM_PID != None );
 190     XChangeProperty( XDISPLAY, m_wnd, NET_WM_PID, XA_CARDINAL, 32,
 191                      PropModeReplace, (unsigned char *)&pid, 1 );
 192
 193 }
 194
 195
 196 X11Window::~X11Window()
 197 {
 198     X11Factory *pFactory = (X11Factory*)X11Factory::instance( getIntf() );
 199     pFactory->m_windowMap[m_wnd] = NULL;
 200     pFactory->m_dndMap[m_wnd] = NULL;
 201
 202     if( m_dragDrop )
 203     {
 204         delete m_pDropTarget;
 205     }
 206     XDestroyWindow( XDISPLAY, m_wnd );
 207     XSync( XDISPLAY, False );
 208 }
 209
 210 void X11Window::reparent( void* OSHandle, int x, int y, int w, int h )
 211 {
 212     // Reparent the window
 213     Window new_parent =
 214            OSHandle ? (Window) OSHandle : DefaultRootWindow( XDISPLAY );
 215
 216     XReparentWindow( XDISPLAY, m_wnd, new_parent, x, y);
 217     if( w && h )
 218         XResizeWindow( XDISPLAY, m_wnd, w, h );
 219
 220     m_wnd_parent = new_parent;
 221 }
 222
 223
 224 void X11Window::show() const
 225 {
 226     // Map the window
 227     if( m_type == GenericWindow::VoutWindow )
 228     {
 229        XLowerWindow( XDISPLAY, m_wnd );
 230        XMapWindow( XDISPLAY, m_wnd );
 231     }
 232     else if( m_type == GenericWindow::FullscreenWindow )
 233     {
 234         XMapRaised( XDISPLAY, m_wnd );
 235         setFullscreen();
 236         // toggleOnTop( true );
 237     }
 238     else
 239     {
 240         XMapRaised( XDISPLAY, m_wnd );
 241     }
 242 }
 243
 244
 245 void X11Window::hide() const
 246 {
 247     // Unmap the window
 248     XUnmapWindow( XDISPLAY, m_wnd );
 249 }
 250
 251 void X11Window::moveResize( int left, int top, int width, int height ) const
 252 {
 253     if( width && height )
 254         XMoveResizeWindow( XDISPLAY, m_wnd, left, top, width, height );
 255     else
 256         XMoveWindow( XDISPLAY, m_wnd, left, top );
 257 }
 258
 259
 260 void X11Window::raise() const
 261 {
 262     XRaiseWindow( XDISPLAY, m_wnd );
 263 }
 264
 265
 266 void X11Window::setOpacity( uint8_t value ) const
 267 {
 268     if( NET_WM_WINDOW_OPACITY == None )
 269         return;
 270
 271     if( 255==value )
 272         XDeleteProperty(XDISPLAY, m_wnd, NET_WM_WINDOW_OPACITY);
 273     else
 274     {
 275         uint32_t opacity = value * ((uint32_t)-1/255);
 276         XChangeProperty(XDISPLAY, m_wnd, NET_WM_WINDOW_OPACITY, XA_CARDINAL, 32,
 277                         PropModeReplace, (unsigned char *) &opacity, 1L);
 278     }
 279     XSync( XDISPLAY, False );
 280 }
 281
 282
 283 void X11Window::setFullscreen( ) const
 284 {
 285     if( NET_WM_STATE_FULLSCREEN != None )
 286     {
 287         XClientMessageEvent event;
 288         memset( &event, 0, sizeof( XClientMessageEvent ) );
 289
 290         event.type = ClientMessage;
 291         event.message_type = NET_WM_STATE;
 292         event.display = XDISPLAY;
 293         event.window = m_wnd;
 294         event.format = 32;
 295         event.data.l[ 0 ] = 1;
 296         event.data.l[ 1 ] = NET_WM_STATE_FULLSCREEN;
 297
 298         XSendEvent( XDISPLAY,
 299                     DefaultRootWindow( XDISPLAY ),
 300                     False, SubstructureNotifyMask|SubstructureRedirectMask,
 301                     (XEvent*)&event );
 302     }
 303 }
 304
 305
 306 void X11Window::toggleOnTop( bool onTop ) const
 307 {
 308     if( NET_WM_STAYS_ON_TOP != None )
 309     {
 310         /* Switch "on top" status */
 311         XClientMessageEvent event;
 312         memset( &event, 0, sizeof( XClientMessageEvent ) );
 313
 314         event.type = ClientMessage;
 315         event.message_type = NET_WM_STATE;
 316         event.display = XDISPLAY;
 317         event.window = m_wnd;
 318         event.format = 32;
 319         event.data.l[ 0 ] = onTop; /* set property */
 320         event.data.l[ 1 ] = NET_WM_STAYS_ON_TOP;
 321
 322         XSendEvent( XDISPLAY, DefaultRootWindow( XDISPLAY ),
 323                     False, SubstructureNotifyMask|SubstructureRedirectMask, (XEvent*)&event );
 324     }
 325     else if( NET_WM_STATE_ABOVE != None )
 326     {
 327         /* Switch "above" state */
 328         XClientMessageEvent event;
 329         memset( &event, 0, sizeof( XClientMessageEvent ) );
 330
 331         event.type = ClientMessage;
 332         event.message_type = NET_WM_STATE;
 333         event.display = XDISPLAY;
 334         event.window = m_wnd;
 335         event.format = 32;
 336         event.data.l[ 0 ] = onTop; /* set property */
 337         event.data.l[ 1 ] = NET_WM_STATE_ABOVE;
 338
 339         XSendEvent( XDISPLAY, DefaultRootWindow( XDISPLAY ),
 340                     False, SubstructureNotifyMask|SubstructureRedirectMask, (XEvent*)&event );
 341     }
 342 }
 343
 344 #endif