window.c

   1 /*
   2  * window.c - window handling functions
   3  *
   4  * Copyright © 2007 Julien Danjou <julien@danjou.info>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  */
  21
  22 #include <X11/Xatom.h>
  23 #include <X11/extensions/shape.h>
  24
  25 #include "window.h"
  26 #include "util.h"
  27
  28 /** Set client WM_STATE property
  29  * \param disp Display ref
  30  * \param win Window
  31  * \param state state
  32  */
  33 int
  34 window_setstate(Display *disp, Window win, long state)
  35 {
  36     long data[] = { state, None };
  37
  38     return XChangeProperty(disp, win, XInternAtom(disp, "WM_STATE", False),
  39                            XInternAtom(disp, "WM_STATE", False),  32,
  40                            PropModeReplace, (unsigned char *) data, 2);
  41 }
  42
  43 /** Get a window state (WM_STATE)
  44  * \param disp Display ref
  45  * \param w Client window
  46  * \return state
  47  */
  48 long
  49 window_getstate(Display *disp, Window w)
  50 {
  51     int format;
  52     long result = -1;
  53     unsigned char *p = NULL;
  54     unsigned long n, extra;
  55     Atom real;
  56     if(XGetWindowProperty(disp, w, XInternAtom(disp, "WM_STATE", False),
  57                           0L, 2L, False, XInternAtom(disp, "WM_STATE", False),
  58                           &real, &format, &n, &extra, (unsigned char **) &p) != Success)
  59         return -1;
  60     if(n != 0)
  61         result = *p;
  62     p_delete(&p);
  63     return result;
  64 }
  65
  66 Status
  67 window_configure(Display *disp, Window win, int x, int y, int w, int h, int border)
  68 {
  69     XConfigureEvent ce;
  70
  71     ce.type = ConfigureNotify;
  72     ce.display = disp;
  73     ce.event = win;
  74     ce.window = win;
  75     ce.x = x;
  76     ce.y = y;
  77     ce.width = w;
  78     ce.height = h;
  79     ce.border_width = border;
  80     ce.above = None;
  81     ce.override_redirect = False;
  82     return XSendEvent(disp, win, False, StructureNotifyMask, (XEvent *) & ce);
  83 }
  84
  85
  86
  87 /** Grab or ungrab buttons on a window
  88  * \param disp Display ref
  89  * \param focused True if client is focused
  90  * \param raised True if the client is above other clients
  91  * \param modkey Mod key mask
  92  * \param numlockmask Numlock mask
  93  */
  94 void
  95 window_grabbuttons(Display *disp, int screen, Window win, Bool focused, Bool raised,
  96                    Button *buttons_root, Button *buttons_client, unsigned int numlockmask)
  97 {
  98     Button *b;
  99
 100     XUngrabButton(disp, AnyButton, AnyModifier, win);
 101
 102     if(focused)
 103     {
 104         if(!raised)
 105             XGrabButton(disp, Button1, NoSymbol, win, False,
 106                         BUTTONMASK, GrabModeSync, GrabModeAsync, None, None);
 107
 108         for(b = buttons_client; b; b = b->next)
 109         {
 110             XGrabButton(disp, b->button, b->mod, win, False, BUTTONMASK,
 111                         GrabModeAsync, GrabModeSync, None, None);
 112             XGrabButton(disp, b->button, b->mod | LockMask, win, False,
 113                         BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
 114             XGrabButton(disp, b->button, b->mod | numlockmask, win, False,
 115                         BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
 116             XGrabButton(disp, b->button, b->mod | numlockmask | LockMask,
 117                         win, False, BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
 118         }
 119
 120         XUngrabButton(disp, AnyButton, AnyModifier, RootWindow(disp, screen));
 121     }
 122     else
 123     {
 124         XGrabButton(disp, AnyButton, AnyModifier, win, False, BUTTONMASK,
 125                     GrabModeAsync, GrabModeSync, None, None);
 126
 127         for(b = buttons_root; b; b = b->next)
 128         {
 129             XGrabButton(disp, b->button, b->mod,
 130                         RootWindow(disp, screen), False, BUTTONMASK,
 131                         GrabModeAsync, GrabModeSync, None, None);
 132             XGrabButton(disp, b->button, b->mod | LockMask,
 133                         RootWindow(disp, screen), False, BUTTONMASK,
 134                         GrabModeAsync, GrabModeSync, None, None);
 135             XGrabButton(disp, b->button, b->mod | numlockmask,
 136                         RootWindow(disp, screen), False, BUTTONMASK,
 137                         GrabModeAsync, GrabModeSync, None, None);
 138             XGrabButton(disp, b->button, b->mod | numlockmask | LockMask,
 139                         RootWindow(disp, screen), False, BUTTONMASK,
 140                         GrabModeAsync, GrabModeSync, None, None);
 141         }
 142     }
 143 }
 144
 145 void
 146 window_setshape(Display *disp, int screen, Window win)
 147 {
 148     int bounding_shaped;
 149     int i, b;  unsigned int u;  /* dummies */
 150     /* Logic to decide if we have a shaped window cribbed from fvwm-2.5.10. */
 151     if(XShapeQueryExtents(disp, win, &bounding_shaped, &i, &i,
 152                           &u, &u, &b, &i, &i, &u, &u) && bounding_shaped)
 153         XShapeCombineShape(disp, RootWindow(disp, screen), ShapeBounding, 0, 0, win, ShapeBounding, ShapeSet);
 154 }
 155
 156 void
 157 window_settrans(Display *disp, Window win, double opacity)
 158 {
 159     unsigned int real_opacity = 0xffffffff;
 160
 161     if(opacity >= 0 && opacity <= 100)
 162     {
 163         real_opacity = ((opacity / 100.0) * 0xffffffff);
 164         XChangeProperty(disp, win, XInternAtom(disp, "_NET_WM_WINDOW_OPACITY", False),
 165                         XA_CARDINAL, 32, PropModeReplace, (unsigned char *) &real_opacity, 1L);
 166     }
 167     else
 168         XDeleteProperty(disp, win, XInternAtom(disp, "_NET_WM_WINDOW_OPACITY", False));
 169
 170     XSync(disp, False);
 171 }
 172
 173 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99