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 "common/util.h"
  27
  28 extern AwesomeConf globalconf;
  29
  30 /** Mask shorthands, used in event.c and window.c */
  31 #define BUTTONMASK     (ButtonPressMask | ButtonReleaseMask)
  32
  33 /** Set client WM_STATE property
  34  * \param win Window
  35  * \param state state
  36  * \return XChangeProperty result
  37  */
  38 int
  39 window_setstate(Window win, long state)
  40 {
  41     long data[] = { state, None };
  42
  43     return XChangeProperty(globalconf.display, win, XInternAtom(globalconf.display, "WM_STATE", False),
  44                            XInternAtom(globalconf.display, "WM_STATE", False),  32,
  45                            PropModeReplace, (unsigned char *) data, 2);
  46 }
  47
  48 /** Get a window state (WM_STATE)
  49  * \param w Client window
  50  * \return state
  51  */
  52 long
  53 window_getstate(Window w)
  54 {
  55     int format;
  56     long result = -1;
  57     unsigned char *p = NULL;
  58     unsigned long n, extra;
  59     Atom real;
  60     if(XGetWindowProperty(globalconf.display, w, XInternAtom(globalconf.display, "WM_STATE", False),
  61                           0L, 2L, False, XInternAtom(globalconf.display, "WM_STATE", False),
  62                           &real, &format, &n, &extra, (unsigned char **) &p) != Success)
  63         return -1;
  64     if(n != 0)
  65         result = *p;
  66     p_delete(&p);
  67     return result;
  68 }
  69
  70 Status
  71 window_configure(Window win, Area geometry, int border)
  72 {
  73     XConfigureEvent ce;
  74
  75     ce.type = ConfigureNotify;
  76     ce.display = globalconf.display;
  77     ce.event = win;
  78     ce.window = win;
  79     ce.x = geometry.x;
  80     ce.y = geometry.y;
  81     ce.width = geometry.width;
  82     ce.height = geometry.height;
  83     ce.border_width = border;
  84     ce.above = None;
  85     ce.override_redirect = False;
  86     return XSendEvent(globalconf.display, win, False, StructureNotifyMask, (XEvent *) & ce);
  87 }
  88
  89 /** Grab or ungrab buttons on a window
  90  * \param screen The screen
  91  * \param win The window
  92  */
  93 void
  94 window_grabbuttons(int screen, Window win)
  95 {
  96     Button *b;
  97
  98     XGrabButton(globalconf.display, Button1, NoSymbol,
  99                 win, False, BUTTONMASK, GrabModeSync, GrabModeAsync, None, None);
 100     XGrabButton(globalconf.display, Button1, NoSymbol | LockMask,
 101                 win, False, BUTTONMASK, GrabModeSync, GrabModeAsync, None, None);
 102     XGrabButton(globalconf.display, Button1, NoSymbol | globalconf.numlockmask,
 103                 win, False, BUTTONMASK, GrabModeSync, GrabModeAsync, None, None);
 104     XGrabButton(globalconf.display, Button1, NoSymbol | globalconf.numlockmask | LockMask,
 105                 win, False, BUTTONMASK, GrabModeSync, GrabModeAsync, None, None);
 106
 107     for(b = globalconf.buttons.client; b; b = b->next)
 108     {
 109         XGrabButton(globalconf.display, b->button, b->mod,
 110                     win, False, BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
 111         XGrabButton(globalconf.display, b->button, b->mod | LockMask,
 112                     win, False, BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
 113         XGrabButton(globalconf.display, b->button, b->mod | globalconf.numlockmask,
 114                     win, False, BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
 115         XGrabButton(globalconf.display, b->button, b->mod | globalconf.numlockmask | LockMask,
 116                     win, False, BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
 117     }
 118
 119     XUngrabButton(globalconf.display, AnyButton, AnyModifier, RootWindow(globalconf.display, screen));
 120 }
 121
 122 void
 123 window_root_grabbuttons(int screen)
 124 {
 125     Button *b;
 126
 127     for(b = globalconf.buttons.root; b; b = b->next)
 128     {
 129         XGrabButton(globalconf.display, b->button, b->mod,
 130                     RootWindow(globalconf.display, screen), False, BUTTONMASK,
 131                     GrabModeAsync, GrabModeSync, None, None);
 132         XGrabButton(globalconf.display, b->button, b->mod | LockMask,
 133                     RootWindow(globalconf.display, screen), False, BUTTONMASK,
 134                     GrabModeAsync, GrabModeSync, None, None);
 135         XGrabButton(globalconf.display, b->button, b->mod | globalconf.numlockmask,
 136                     RootWindow(globalconf.display, screen), False, BUTTONMASK,
 137                     GrabModeAsync, GrabModeSync, None, None);
 138         XGrabButton(globalconf.display, b->button, b->mod | globalconf.numlockmask | LockMask,
 139                     RootWindow(globalconf.display, screen), False, BUTTONMASK,
 140                     GrabModeAsync, GrabModeSync, None, None);
 141     }
 142 }
 143
 144 void
 145 window_setshape(int screen, Window win)
 146 {
 147     int bounding_shaped;
 148     int i, b;  unsigned int u;  /* dummies */
 149     /* Logic to decide if we have a shaped window cribbed from fvwm-2.5.10. */
 150     if(XShapeQueryExtents(globalconf.display, win, &bounding_shaped, &i, &i,
 151                           &u, &u, &b, &i, &i, &u, &u) && bounding_shaped)
 152         XShapeCombineShape(globalconf.display, RootWindow(globalconf.display, screen), ShapeBounding, 0, 0, win, ShapeBounding, ShapeSet);
 153 }
 154
 155 int
 156 window_settrans(Window win, double opacity)
 157 {
 158     int status;
 159     unsigned int real_opacity = 0xffffffff;
 160
 161     if(opacity >= 0 && opacity <= 100)
 162     {
 163         real_opacity = ((opacity / 100.0) * 0xffffffff);
 164         status = XChangeProperty(globalconf.display, win,
 165                                  XInternAtom(globalconf.display, "_NET_WM_WINDOW_OPACITY", False),
 166                                  XA_CARDINAL, 32, PropModeReplace, (unsigned char *) &real_opacity, 1L);
 167     }
 168     else
 169         status = XDeleteProperty(globalconf.display, win,
 170                                  XInternAtom(globalconf.display, "_NET_WM_WINDOW_OPACITY", False));
 171
 172     return status;
 173 }
 174
 175 SimpleWindow *
 176 simplewindow_new(int phys_screen, int x, int y, unsigned int w, unsigned int h,
 177                   unsigned int border_width)
 178 {
 179     XSetWindowAttributes wa;
 180     SimpleWindow *sw;
 181
 182     sw = p_new(SimpleWindow, 1);
 183
 184     sw->geometry.x = x;
 185     sw->geometry.y = y;
 186     sw->geometry.width = w;
 187     sw->geometry.height = h;
 188
 189     wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask
 190         | EnterWindowMask | LeaveWindowMask | StructureNotifyMask;
 191     wa.cursor = globalconf.cursor[CurNormal];
 192     wa.override_redirect = 1;
 193     wa.background_pixmap = ParentRelative;
 194     wa.event_mask = ButtonPressMask | ExposureMask;
 195     sw->window = XCreateWindow(globalconf.display,
 196                                RootWindow(globalconf.display, phys_screen),
 197                                x, y, w, h,
 198                                border_width,
 199                                DefaultDepth(globalconf.display, phys_screen),
 200                                CopyFromParent,
 201                                DefaultVisual(globalconf.display, phys_screen),
 202                                CWOverrideRedirect | CWBackPixmap | CWEventMask,
 203                                &wa);
 204
 205     sw->drawable = XCreatePixmap(globalconf.display,
 206                                  RootWindow(globalconf.display, phys_screen),
 207                                  w, h,
 208                                  DefaultDepth(globalconf.display, phys_screen));
 209
 210     XDefineCursor(globalconf.display,
 211                   sw->window,
 212                   globalconf.cursor[CurNormal]);
 213
 214     return sw;
 215 }
 216
 217 void
 218 simplewindow_delete(SimpleWindow *sw)
 219 {
 220     XDestroyWindow(globalconf.display, sw->window);
 221     XFreePixmap(globalconf.display, sw->drawable);
 222     p_delete(&sw);
 223 }
 224
 225 int
 226 simplewindow_move(SimpleWindow *sw, int x, int y)
 227 {
 228     sw->geometry.x = x;
 229     sw->geometry.y = y;
 230     return XMoveWindow(globalconf.display, sw->window, x, y);
 231 }
 232
 233 int
 234 simplewindow_refresh_drawable(SimpleWindow *sw, int phys_screen)
 235 {
 236     return XCopyArea(globalconf.display, sw->drawable,
 237                      sw->window,
 238                      DefaultGC(globalconf.display, phys_screen), 0, 0,
 239                      sw->geometry.width,
 240                      sw->geometry.height,
 241                      0, 0);
 242 }
 243
 244 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80