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 <xcb/xcb.h>
  23 #include <xcb/xcb_atom.h>
  24
  25 #include "window.h"
  26 #include "common/atoms.h"
  27
  28 extern awesome_t globalconf;
  29
  30 /** Mask shorthands */
  31 #define BUTTONMASK     (XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE)
  32
  33 /** Set client state (WM_STATE) property.
  34  * \param win The window to set state.
  35  * \param state The state to set.
  36  */
  37 void
  38 window_setstate(xcb_window_t win, long state)
  39 {
  40     long data[] = { state, XCB_NONE };
  41     xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE, win,
  42                         WM_STATE, WM_STATE, 32, 2, data);
  43 }
  44
  45 /** Get a window state (WM_STATE).
  46  * \param w A client window.
  47  * \return The current state of the window, or -1 on error.
  48  */
  49 long
  50 window_getstate(xcb_window_t w)
  51 {
  52     long result = -1;
  53     unsigned char *p = NULL;
  54     xcb_get_property_cookie_t prop_c;
  55     xcb_get_property_reply_t *prop_r;
  56
  57     prop_c = xcb_get_property_unchecked(globalconf.connection, false, w,
  58                                         WM_STATE, WM_STATE,
  59                                         0L, 2L);
  60
  61     if(!(prop_r = xcb_get_property_reply(globalconf.connection, prop_c, NULL)))
  62         return -1;
  63
  64     p = xcb_get_property_value(prop_r);
  65     if(xcb_get_property_value_length(prop_r) != 0)
  66         result = *p;
  67
  68     p_delete(&prop_r);
  69
  70     return result;
  71 }
  72
  73 /** Configure a window with its new geometry and border size.
  74  * \param win The X window id to configure.
  75  * \param geometry The new window geometry.
  76  * \param border The new border size.
  77  */
  78 void
  79 window_configure(xcb_window_t win, area_t geometry, int border)
  80 {
  81     xcb_configure_notify_event_t ce;
  82
  83     ce.response_type = XCB_CONFIGURE_NOTIFY;
  84     ce.event = win;
  85     ce.window = win;
  86     ce.x = geometry.x;
  87     ce.y = geometry.y;
  88     ce.width = geometry.width;
  89     ce.height = geometry.height;
  90     ce.border_width = border;
  91     ce.above_sibling = XCB_NONE;
  92     ce.override_redirect = false;
  93     xcb_send_event(globalconf.connection, false, win, XCB_EVENT_MASK_STRUCTURE_NOTIFY, (char *) &ce);
  94 }
  95
  96 /** Grab or ungrab buttons on a window.
  97  * \param win The window.
  98  * \param root The root window.
  99  * \param buttons The buttons to grab.
 100  */
 101 void
 102 window_grabbuttons(xcb_window_t win, xcb_window_t root, button_t *buttons)
 103 {
 104     button_t *b;
 105
 106     for(b = buttons; b; b = b->next)
 107     {
 108         xcb_grab_button(globalconf.connection, false, win, BUTTONMASK,
 109                         XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, XCB_NONE, XCB_NONE,
 110                         b->button, b->mod);
 111         xcb_grab_button(globalconf.connection, false, win, BUTTONMASK,
 112                         XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, XCB_NONE, XCB_NONE,
 113                         b->button, b->mod | XCB_MOD_MASK_LOCK);
 114         xcb_grab_button(globalconf.connection, false, win, BUTTONMASK,
 115                         XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, XCB_NONE, XCB_NONE,
 116                         b->button, b->mod | globalconf.numlockmask);
 117         xcb_grab_button(globalconf.connection, false, win, BUTTONMASK,
 118                         XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, XCB_NONE, XCB_NONE,
 119                         b->button, b->mod | globalconf.numlockmask | XCB_MOD_MASK_LOCK);
 120     }
 121
 122     xcb_ungrab_button(globalconf.connection, XCB_BUTTON_INDEX_ANY, root, XUTIL_ANY_MODIFIER);
 123 }
 124
 125 /** Grab all buttons on the root window.
 126  * \param root The root window.
 127  */
 128 void
 129 window_root_grabbuttons(xcb_window_t root)
 130 {
 131     button_t *b;
 132
 133     for(b = globalconf.buttons.root; b; b = b->next)
 134     {
 135         xcb_grab_button(globalconf.connection, false, root, BUTTONMASK,
 136                         XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_SYNC, XCB_NONE, XCB_NONE,
 137                         b->button, b->mod);
 138         xcb_grab_button(globalconf.connection, false, root, BUTTONMASK,
 139                         XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_SYNC, XCB_NONE, XCB_NONE,
 140                         b->button, b->mod | XCB_MOD_MASK_LOCK);
 141         xcb_grab_button(globalconf.connection, false, root, BUTTONMASK,
 142                         XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_SYNC, XCB_NONE, XCB_NONE,
 143                         b->button, b->mod | globalconf.numlockmask);
 144         xcb_grab_button(globalconf.connection, false, root, BUTTONMASK,
 145                         XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_SYNC, XCB_NONE, XCB_NONE,
 146                         b->button, b->mod | globalconf.numlockmask | XCB_MOD_MASK_LOCK);
 147     }
 148 }
 149
 150 /** Set transparency of a window.
 151  * \param win The window.
 152  * \param opacity Opacity of the window, between 0 and 1.
 153  */
 154 void
 155 window_settrans(xcb_window_t win, double opacity)
 156 {
 157     unsigned int real_opacity = 0xffffffff;
 158
 159     if(opacity >= 0 && opacity <= 1)
 160     {
 161         real_opacity = opacity * 0xffffffff;
 162         xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE, win,
 163                             _NET_WM_WINDOW_OPACITY, CARDINAL, 32, 1L, &real_opacity);
 164     }
 165     else
 166         xcb_delete_property(globalconf.connection, win, _NET_WM_WINDOW_OPACITY);
 167 }
 168
 169 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80