app-selector-util.c

   1 /*
   2  * Copyright 2012  Samsung Electronics Co., Ltd
   3  *
   4  * Licensed under the Flora License, Version 1.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7
   8  *     http://www.tizenopensource.org/license
   9
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17
  18
  19
  20 #include <Ecore.h>
  21 #include <Ecore_X.h>
  22
  23 #include <sys/shm.h>
  24
  25 #include <X11/Xatom.h>
  26 #include <X11/Xlib.h>
  27 #include <X11/Xutil.h>
  28 #include <X11/extensions/Xcomposite.h>
  29 #include <X11/extensions/XShm.h>
  30
  31 #include "app-selector.h"
  32 #include "app-selector-util.h"
  33
  34
  35 static pid_t __get_win_pid(Display *d, Window win);
  36 static int __tm_get_win_with_pid(Display *d, Window * win, pid_t pid);
  37 static Window __find_top_win(Window win);
  38
  39
  40 static pid_t __get_win_pid(Display *d, Window win)
  41 {
  42         int ret;
  43         pid_t pid;
  44
  45         Atom a_pid;
  46         Atom a_type;
  47         int format;
  48         unsigned long nitems;
  49         unsigned long bytes_after;
  50         unsigned char *prop_ret;
  51
  52         if (!d)
  53                 return -1;
  54
  55         a_pid = XInternAtom(d, "_NET_WM_PID", True);
  56         if (a_pid == 0)
  57                 return -1;
  58
  59         ret = XGetWindowProperty(d, win, a_pid, 0, 1, False, XA_CARDINAL,
  60                                  &a_type, &format, &nitems, &bytes_after,
  61                                  &prop_ret);
  62
  63         if (ret != 0 || prop_ret == NULL)
  64                 return -1;
  65
  66         pid = *(unsigned long *)prop_ret;
  67
  68         XFree(prop_ret);
  69         return pid;
  70 }
  71
  72 static int __tm_get_win_with_pid(Display *d, Window * win, pid_t pid)
  73 {
  74         int ret;
  75         pid_t p;
  76         int n;
  77         Window root, parent, *child;
  78
  79         p = __get_win_pid(d, *win);
  80         if (p == pid)
  81                 return 1;
  82
  83         ret = XQueryTree(d, *win, &root, &parent, &child, &n);
  84         if (ret) {
  85                 int i;
  86                 int found = 0;
  87
  88                 for (i = 0; i < n; i++) {
  89                         found = __tm_get_win_with_pid(d, &child[i], pid);
  90                         if (found) {
  91                                 *win = child[i];
  92                                 break;
  93                         }
  94                 }
  95
  96                 XFree(child);
  97                 if (found)
  98                         return 1;
  99         }
 100         return 0;
 101 }
 102
 103 static Window __find_top_win(Window win)
 104 {
 105         Window root, parent, *childw, return_win;
 106         unsigned int nchild;
 107         if (!XQueryTree(ecore_x_display_get(),
 108             win, &root, &parent, &childw, &nchild)) {
 109 /*              DBG_PRT("XQueryTree failed.\n");*/
 110                 return win;
 111         }
 112         if (parent == root) {
 113 /*              DBG_PRT("toplevel window: 0x%x \n", (unsigned int)win);*/
 114                 return_win = win;
 115                 XFree(childw);
 116                 return return_win;
 117         } else {
 118 /*              DBG_PRT("window: 0x%x \n",(unsigned int)win);*/
 119                 XFree(childw);
 120                 return __find_top_win(parent);
 121         }
 122 }
 123
 124 int set_transient(Ecore_X_Display *display, Ecore_X_Window win,
 125                   Ecore_X_Window prev_win)
 126 {
 127         int ret = 0;
 128
 129         ret = XSetTransientForHint(display, win, prev_win);
 130
 131         return ret;
 132 }