client.c

   1 /*
   2  * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
   3  * See LICENSE file for license details.
   4  */
   5
   6 #include <stdlib.h>
   7 #include <string.h>
   8 #include <X11/Xatom.h>
   9
  10 #include "util.h"
  11 #include "wm.h"
  12
  13 void
  14 update_name(Client *c)
  15 {
  16         XTextProperty name;
  17         int n;
  18         char **list = NULL;
  19
  20         name.nitems = 0;
  21         c->name[0] = 0;
  22         XGetTextProperty(dpy, c->win, &name, net_atom[NetWMName]);
  23         if(!name.nitems)
  24                 XGetWMName(dpy, c->win, &name);
  25         if(!name.nitems)
  26                 return;
  27         if(name.encoding == XA_STRING)
  28                 strncpy(c->name, (char *)name.value, sizeof(c->name));
  29         else {
  30                 if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
  31                                 && n > 0 && *list)
  32                 {
  33                         strncpy(c->name, *list, sizeof(c->name));
  34                         XFreeStringList(list);
  35                 }
  36         }
  37         XFree(name.value);
  38         if(c == stack)
  39                 draw_bar();
  40         else
  41                 draw_client(c);
  42 }
  43
  44 void
  45 focus(Client *c)
  46 {
  47         Client **l;
  48         for(l=&stack; *l && *l != c; l=&(*l)->snext);
  49         eassert(*l == c);
  50         *l = c->snext;
  51         c->snext = stack;
  52         stack = c;
  53         XRaiseWindow(dpy, c->win);
  54         XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
  55         XFlush(dpy);
  56 }
  57
  58 void
  59 manage(Window w, XWindowAttributes *wa)
  60 {
  61         Client *c, **l;
  62         XSetWindowAttributes twa;
  63         long msize;
  64
  65         c = emallocz(sizeof(Client));
  66         c->win = w;
  67         c->r[RFloat].x = wa->x;
  68         c->r[RFloat].y = wa->y;
  69         c->r[RFloat].width = wa->width;
  70         c->r[RFloat].height = wa->height;
  71         c->border = wa->border_width;
  72         XSetWindowBorderWidth(dpy, c->win, 0);
  73         XSelectInput(dpy, c->win, StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
  74         XGetTransientForHint(dpy, c->win, &c->trans);
  75         if(!XGetWMNormalHints(dpy, c->win, &c->size, &msize) || !c->size.flags)
  76                 c->size.flags = PSize;
  77         c->fixedsize =
  78                 (c->size.flags & PMinSize && c->size.flags & PMaxSize
  79                  && c->size.min_width == c->size.max_width
  80                  && c->size.min_height == c->size.max_height);
  81         update_name(c);
  82         twa.override_redirect = 1;
  83         twa.background_pixmap = ParentRelative;
  84         twa.event_mask = ExposureMask;
  85
  86         c->title = XCreateWindow(dpy, root, c->r[RFloat].x, c->r[RFloat].y,
  87                         c->r[RFloat].width, barrect.height, 0,
  88                         DefaultDepth(dpy, screen), CopyFromParent,
  89                         DefaultVisual(dpy, screen),
  90                         CWOverrideRedirect | CWBackPixmap | CWEventMask, &twa);
  91
  92         for(l=&clients; *l; l=&(*l)->next);
  93         c->next = *l; /* *l == nil */
  94         *l = c;
  95         c->snext = stack;
  96         stack = c;
  97         XMapWindow(dpy, c->win);
  98         focus(c);
  99 }
 100
 101 static int
 102 dummy_error_handler(Display *dpy, XErrorEvent *error)
 103 {
 104         return 0;
 105 }
 106
 107 void
 108 unmanage(Client *c)
 109 {
 110         Client **l;
 111
 112         XGrabServer(dpy);
 113         XSetErrorHandler(dummy_error_handler);
 114
 115         XUnmapWindow(dpy, c->win);
 116         XDestroyWindow(dpy, c->title);
 117
 118         for(l=&clients; *l && *l != c; l=&(*l)->next);
 119         eassert(*l == c);
 120         *l = c->next;
 121         for(l=&stack; *l && *l != c; l=&(*l)->snext);
 122         eassert(*l == c);
 123         *l = c->snext;
 124         free(c);
 125
 126         XFlush(dpy);
 127         XSetErrorHandler(error_handler);
 128         XUngrabServer(dpy);
 129         flush_events(EnterWindowMask);
 130         if(stack)
 131                 focus(stack);
 132 }
 133
 134
 135 Client *
 136 getclient(Window w)
 137 {
 138         Client *c;
 139         for(c = clients; c; c = c->next)
 140                 if(c->win == w)
 141                         return c;
 142         return NULL;
 143 }
 144
 145 void
 146 draw_client(Client *c)
 147 {
 148
 149
 150
 151 }