window.c

   1 /*
   2  * window.c - window handling functions
   3  *
   4  * Copyright © 2007-2008 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 "structs.h"
  26 #include "window.h"
  27 #include "common/util.h"
  28
  29 extern AwesomeConf globalconf;
  30
  31 /** Mask shorthands, used in event.c and window.c */
  32 #define BUTTONMASK     (ButtonPressMask | ButtonReleaseMask)
  33
  34 /** Set client WM_STATE property
  35  * \param win Window
  36  * \param state state
  37  * \return XChangeProperty result
  38  */
  39 int
  40 window_setstate(Window win, long state)
  41 {
  42     long data[] = { state, None };
  43
  44     return XChangeProperty(globalconf.display, win, XInternAtom(globalconf.display, "WM_STATE", False),
  45                            XInternAtom(globalconf.display, "WM_STATE", False),  32,
  46                            PropModeReplace, (unsigned char *) data, 2);
  47 }
  48
  49 /** Get a window state (WM_STATE)
  50  * \param w Client window
  51  * \return state
  52  */
  53 long
  54 window_getstate(Window w)
  55 {
  56     int format;
  57     long result = -1;
  58     unsigned char *p = NULL;
  59     unsigned long n, extra;
  60     Atom real;
  61     if(XGetWindowProperty(globalconf.display, w, XInternAtom(globalconf.display, "WM_STATE", False),
  62                           0L, 2L, False, XInternAtom(globalconf.display, "WM_STATE", False),
  63                           &real, &format, &n, &extra, (unsigned char **) &p) != Success)
  64         return -1;
  65     if(n != 0)
  66         result = *p;
  67     p_delete(&p);
  68     return result;
  69 }
  70
  71 Status
  72 window_configure(Window win, Area geometry, int border)
  73 {
  74     XConfigureEvent ce;
  75
  76     ce.type = ConfigureNotify;
  77     ce.display = globalconf.display;
  78     ce.event = win;
  79     ce.window = win;
  80     ce.x = geometry.x;
  81     ce.y = geometry.y;
  82     ce.width = geometry.width;
  83     ce.height = geometry.height;
  84     ce.border_width = border;
  85     ce.above = None;
  86     ce.override_redirect = False;
  87     return XSendEvent(globalconf.display, win, False, StructureNotifyMask, (XEvent *) & ce);
  88 }
  89
  90 /** Grab or ungrab buttons on a window
  91  * \param screen The screen
  92  * \param win The window
  93  */
  94 void
  95 window_grabbuttons(int screen, Window win)
  96 {
  97     Button *b;
  98
  99     XGrabButton(globalconf.display, Button1, NoSymbol,
 100                 win, False, BUTTONMASK, GrabModeSync, GrabModeAsync, None, None);
 101     XGrabButton(globalconf.display, Button1, NoSymbol | LockMask,
 102                 win, False, BUTTONMASK, GrabModeSync, GrabModeAsync, None, None);
 103     XGrabButton(globalconf.display, Button1, NoSymbol | globalconf.numlockmask,
 104                 win, False, BUTTONMASK, GrabModeSync, GrabModeAsync, None, None);
 105     XGrabButton(globalconf.display, Button1, NoSymbol | globalconf.numlockmask | LockMask,
 106                 win, False, BUTTONMASK, GrabModeSync, GrabModeAsync, None, None);
 107
 108     for(b = globalconf.buttons.client; b; b = b->next)
 109     {
 110         XGrabButton(globalconf.display, b->button, b->mod,
 111                     win, False, BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
 112         XGrabButton(globalconf.display, b->button, b->mod | LockMask,
 113                     win, False, BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
 114         XGrabButton(globalconf.display, b->button, b->mod | globalconf.numlockmask,
 115                     win, False, BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
 116         XGrabButton(globalconf.display, b->button, b->mod | globalconf.numlockmask | LockMask,
 117                     win, False, BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
 118     }
 119
 120     XUngrabButton(globalconf.display, AnyButton, AnyModifier, RootWindow(globalconf.display, screen));
 121 }
 122
 123 void
 124 window_root_grabbuttons(int screen)
 125 {
 126     Button *b;
 127
 128     for(b = globalconf.buttons.root; b; b = b->next)
 129     {
 130         XGrabButton(globalconf.display, b->button, b->mod,
 131                     RootWindow(globalconf.display, screen), False, BUTTONMASK,
 132                     GrabModeAsync, GrabModeSync, None, None);
 133         XGrabButton(globalconf.display, b->button, b->mod | LockMask,
 134                     RootWindow(globalconf.display, screen), False, BUTTONMASK,
 135                     GrabModeAsync, GrabModeSync, None, None);
 136         XGrabButton(globalconf.display, b->button, b->mod | globalconf.numlockmask,
 137                     RootWindow(globalconf.display, screen), False, BUTTONMASK,
 138                     GrabModeAsync, GrabModeSync, None, None);
 139         XGrabButton(globalconf.display, b->button, b->mod | globalconf.numlockmask | LockMask,
 140                     RootWindow(globalconf.display, screen), False, BUTTONMASK,
 141                     GrabModeAsync, GrabModeSync, None, None);
 142     }
 143 }
 144
 145 void
 146 window_setshape(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(globalconf.display, win, &bounding_shaped, &i, &i,
 152                           &u, &u, &b, &i, &i, &u, &u) && bounding_shaped)
 153         XShapeCombineShape(globalconf.display, RootWindow(globalconf.display, screen), ShapeBounding, 0, 0, win, ShapeBounding, ShapeSet);
 154 }
 155
 156 int
 157 window_settrans(Window win, double opacity)
 158 {
 159     int status;
 160     unsigned int real_opacity = 0xffffffff;
 161
 162     if(opacity >= 0 && opacity <= 100)
 163     {
 164         real_opacity = ((opacity / 100.0) * 0xffffffff);
 165         status = XChangeProperty(globalconf.display, win,
 166                                  XInternAtom(globalconf.display, "_NET_WM_WINDOW_OPACITY", False),
 167                                  XA_CARDINAL, 32, PropModeReplace, (unsigned char *) &real_opacity, 1L);
 168     }
 169     else
 170         status = XDeleteProperty(globalconf.display, win,
 171                                  XInternAtom(globalconf.display, "_NET_WM_WINDOW_OPACITY", False));
 172
 173     return status;
 174 }
 175
 176 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80