dlls/winex11.drv/desktop.c

   1 /*
   2  * X11DRV desktop window handling
   3  *
   4  * Copyright 2001 Alexandre Julliard
   5  * Copyright 2020 Zhiyi Zhang for CodeWeavers
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #if 0
  23 #pragma makedep unix
  24 #endif
  25
  26 #include "config.h"
  27 #include <X11/cursorfont.h>
  28 #include <X11/Xlib.h>
  29
  30 #define NONAMELESSSTRUCT
  31 #define NONAMELESSUNION
  32
  33 #include "x11drv.h"
  34
  35 /* avoid conflict with field names in included win32 headers */
  36 #undef Status
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(x11drv);
  40
  41 static RECT host_primary_rect;
  42
  43 #define _NET_WM_STATE_REMOVE 0
  44 #define _NET_WM_STATE_ADD 1
  45
  46 /* Return TRUE if Wine is currently in virtual desktop mode */
  47 BOOL is_virtual_desktop(void)
  48 {
  49     return root_window != DefaultRootWindow( gdi_display );
  50 }
  51
  52 /***********************************************************************
  53  *              X11DRV_init_desktop
  54  *
  55  * Setup the desktop when not using the root window.
  56  */
  57 void X11DRV_init_desktop( Window win, unsigned int width, unsigned int height )
  58 {
  59     host_primary_rect = get_host_primary_monitor_rect();
  60     root_window = win;
  61     managed_mode = FALSE;  /* no managed windows in desktop mode */
  62 }
  63
  64 /***********************************************************************
  65  *           X11DRV_CreateDesktop
  66  *
  67  * Create the X11 desktop window for the desktop mode.
  68  */
  69 BOOL X11DRV_CreateDesktop( const WCHAR *name, UINT width, UINT height )
  70 {
  71     XSetWindowAttributes win_attr;
  72     Window win;
  73     Display *display = thread_init_display();
  74
  75     TRACE( "%s %ux%u\n", debugstr_w(name), width, height );
  76
  77     /* Create window */
  78     win_attr.event_mask = ExposureMask | KeyPressMask | KeyReleaseMask | EnterWindowMask |
  79                           PointerMotionMask | ButtonPressMask | ButtonReleaseMask | FocusChangeMask;
  80     win_attr.cursor = XCreateFontCursor( display, XC_top_left_arrow );
  81
  82     if (default_visual.visual != DefaultVisual( display, DefaultScreen(display) ))
  83         win_attr.colormap = XCreateColormap( display, DefaultRootWindow(display),
  84                                              default_visual.visual, AllocNone );
  85     else
  86         win_attr.colormap = None;
  87
  88     win = XCreateWindow( display, DefaultRootWindow(display),
  89                          0, 0, width, height, 0, default_visual.depth, InputOutput,
  90                          default_visual.visual, CWEventMask | CWCursor | CWColormap, &win_attr );
  91     if (!win) return FALSE;
  92     XFlush( display );
  93
  94     X11DRV_init_desktop( win, width, height );
  95     return TRUE;
  96 }
  97
  98 BOOL is_desktop_fullscreen(void)
  99 {
 100     RECT primary_rect = NtUserGetPrimaryMonitorRect();
 101     return (primary_rect.right - primary_rect.left == host_primary_rect.right - host_primary_rect.left &&
 102             primary_rect.bottom - primary_rect.top == host_primary_rect.bottom - host_primary_rect.top);
 103 }
 104
 105 static void update_desktop_fullscreen( unsigned int width, unsigned int height)
 106 {
 107     Display *display = thread_display();
 108     XEvent xev;
 109
 110     if (!display || !is_virtual_desktop()) return;
 111
 112     xev.xclient.type = ClientMessage;
 113     xev.xclient.window = root_window;
 114     xev.xclient.message_type = x11drv_atom(_NET_WM_STATE);
 115     xev.xclient.serial = 0;
 116     xev.xclient.display = display;
 117     xev.xclient.send_event = True;
 118     xev.xclient.format = 32;
 119     if (width == host_primary_rect.right - host_primary_rect.left && height == host_primary_rect.bottom - host_primary_rect.top)
 120         xev.xclient.data.l[0] = _NET_WM_STATE_ADD;
 121     else
 122         xev.xclient.data.l[0] = _NET_WM_STATE_REMOVE;
 123     xev.xclient.data.l[1] = x11drv_atom(_NET_WM_STATE_FULLSCREEN);
 124     xev.xclient.data.l[2] = 0;
 125     xev.xclient.data.l[3] = 1;
 126
 127     TRACE("action=%li\n", xev.xclient.data.l[0]);
 128
 129     XSendEvent( display, DefaultRootWindow(display), False,
 130                 SubstructureRedirectMask | SubstructureNotifyMask, &xev );
 131
 132     xev.xclient.data.l[1] = x11drv_atom(_NET_WM_STATE_MAXIMIZED_VERT);
 133     xev.xclient.data.l[2] = x11drv_atom(_NET_WM_STATE_MAXIMIZED_HORZ);
 134     XSendEvent( display, DefaultRootWindow(display), False,
 135                 SubstructureRedirectMask | SubstructureNotifyMask, &xev );
 136 }
 137
 138 /***********************************************************************
 139  *              X11DRV_resize_desktop
 140  */
 141 void X11DRV_resize_desktop(void)
 142 {
 143     static RECT old_virtual_rect;
 144
 145     RECT primary_rect, virtual_rect;
 146     HWND hwnd = NtUserGetDesktopWindow();
 147     INT width, height;
 148
 149     virtual_rect = NtUserGetVirtualScreenRect();
 150     primary_rect = NtUserGetPrimaryMonitorRect();
 151     width = primary_rect.right;
 152     height = primary_rect.bottom;
 153
 154     TRACE( "desktop %p change to (%dx%d)\n", hwnd, width, height );
 155     update_desktop_fullscreen( width, height );
 156     NtUserSetWindowPos( hwnd, 0, virtual_rect.left, virtual_rect.top,
 157                         virtual_rect.right - virtual_rect.left, virtual_rect.bottom - virtual_rect.top,
 158                         SWP_NOZORDER | SWP_NOACTIVATE | SWP_DEFERERASE );
 159
 160     if (old_virtual_rect.left != virtual_rect.left || old_virtual_rect.top != virtual_rect.top)
 161         send_message_timeout( HWND_BROADCAST, WM_X11DRV_DESKTOP_RESIZED, old_virtual_rect.left,
 162                               old_virtual_rect.top, SMTO_ABORTIFHUNG, 2000, FALSE );
 163
 164     old_virtual_rect = virtual_rect;
 165 }