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 #include "x11drv.h"
  31
  32 /* avoid conflict with field names in included win32 headers */
  33 #undef Status
  34 #include "wine/debug.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(x11drv);
  37
  38 static RECT host_primary_rect;
  39
  40 #define _NET_WM_STATE_REMOVE 0
  41 #define _NET_WM_STATE_ADD 1
  42
  43 /* Return TRUE if Wine is currently in virtual desktop mode */
  44 BOOL is_virtual_desktop(void)
  45 {
  46     return root_window != DefaultRootWindow( gdi_display );
  47 }
  48
  49 /***********************************************************************
  50  *              X11DRV_init_desktop
  51  *
  52  * Setup the desktop when not using the root window.
  53  */
  54 void X11DRV_init_desktop( Window win, unsigned int width, unsigned int height )
  55 {
  56     host_primary_rect = get_host_primary_monitor_rect();
  57     root_window = win;
  58     managed_mode = FALSE;  /* no managed windows in desktop mode */
  59 }
  60
  61 /***********************************************************************
  62  *           X11DRV_CreateDesktop
  63  *
  64  * Create the X11 desktop window for the desktop mode.
  65  */
  66 BOOL X11DRV_CreateDesktop( const WCHAR *name, UINT width, UINT height )
  67 {
  68     XSetWindowAttributes win_attr;
  69     Window win;
  70     Display *display = thread_init_display();
  71
  72     TRACE( "%s %ux%u\n", debugstr_w(name), width, height );
  73
  74     /* Create window */
  75     win_attr.event_mask = ExposureMask | KeyPressMask | KeyReleaseMask | EnterWindowMask |
  76                           PointerMotionMask | ButtonPressMask | ButtonReleaseMask | FocusChangeMask;
  77     win_attr.cursor = XCreateFontCursor( display, XC_top_left_arrow );
  78
  79     if (default_visual.visual != DefaultVisual( display, DefaultScreen(display) ))
  80         win_attr.colormap = XCreateColormap( display, DefaultRootWindow(display),
  81                                              default_visual.visual, AllocNone );
  82     else
  83         win_attr.colormap = None;
  84
  85     win = XCreateWindow( display, DefaultRootWindow(display),
  86                          0, 0, width, height, 0, default_visual.depth, InputOutput,
  87                          default_visual.visual, CWEventMask | CWCursor | CWColormap, &win_attr );
  88     if (!win) return FALSE;
  89     XFlush( display );
  90
  91     X11DRV_init_desktop( win, width, height );
  92     return TRUE;
  93 }
  94
  95 BOOL is_desktop_fullscreen(void)
  96 {
  97     RECT primary_rect = NtUserGetPrimaryMonitorRect();
  98     return (primary_rect.right - primary_rect.left == host_primary_rect.right - host_primary_rect.left &&
  99             primary_rect.bottom - primary_rect.top == host_primary_rect.bottom - host_primary_rect.top);
 100 }
 101
 102 static void update_desktop_fullscreen( unsigned int width, unsigned int height)
 103 {
 104     Display *display = thread_display();
 105     XEvent xev;
 106
 107     if (!display || !is_virtual_desktop()) return;
 108
 109     xev.xclient.type = ClientMessage;
 110     xev.xclient.window = root_window;
 111     xev.xclient.message_type = x11drv_atom(_NET_WM_STATE);
 112     xev.xclient.serial = 0;
 113     xev.xclient.display = display;
 114     xev.xclient.send_event = True;
 115     xev.xclient.format = 32;
 116     if (width == host_primary_rect.right - host_primary_rect.left && height == host_primary_rect.bottom - host_primary_rect.top)
 117         xev.xclient.data.l[0] = _NET_WM_STATE_ADD;
 118     else
 119         xev.xclient.data.l[0] = _NET_WM_STATE_REMOVE;
 120     xev.xclient.data.l[1] = x11drv_atom(_NET_WM_STATE_FULLSCREEN);
 121     xev.xclient.data.l[2] = 0;
 122     xev.xclient.data.l[3] = 1;
 123
 124     TRACE("action=%li\n", xev.xclient.data.l[0]);
 125
 126     XSendEvent( display, DefaultRootWindow(display), False,
 127                 SubstructureRedirectMask | SubstructureNotifyMask, &xev );
 128
 129     xev.xclient.data.l[1] = x11drv_atom(_NET_WM_STATE_MAXIMIZED_VERT);
 130     xev.xclient.data.l[2] = x11drv_atom(_NET_WM_STATE_MAXIMIZED_HORZ);
 131     XSendEvent( display, DefaultRootWindow(display), False,
 132                 SubstructureRedirectMask | SubstructureNotifyMask, &xev );
 133 }
 134
 135 /***********************************************************************
 136  *              X11DRV_resize_desktop
 137  */
 138 void X11DRV_resize_desktop(void)
 139 {
 140     static RECT old_virtual_rect;
 141
 142     RECT primary_rect, virtual_rect;
 143     HWND hwnd = NtUserGetDesktopWindow();
 144     INT width, height;
 145
 146     virtual_rect = NtUserGetVirtualScreenRect();
 147     primary_rect = NtUserGetPrimaryMonitorRect();
 148     width = primary_rect.right;
 149     height = primary_rect.bottom;
 150
 151     TRACE( "desktop %p change to (%dx%d)\n", hwnd, width, height );
 152     update_desktop_fullscreen( width, height );
 153     NtUserSetWindowPos( hwnd, 0, virtual_rect.left, virtual_rect.top,
 154                         virtual_rect.right - virtual_rect.left, virtual_rect.bottom - virtual_rect.top,
 155                         SWP_NOZORDER | SWP_NOACTIVATE | SWP_DEFERERASE );
 156
 157     if (old_virtual_rect.left != virtual_rect.left || old_virtual_rect.top != virtual_rect.top)
 158         send_message_timeout( HWND_BROADCAST, WM_X11DRV_DESKTOP_RESIZED, old_virtual_rect.left,
 159                               old_virtual_rect.top, SMTO_ABORTIFHUNG, 2000, FALSE );
 160
 161     old_virtual_rect = virtual_rect;
 162 }