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| 22 | #include <xcb/xcb.h> |
| 23 | #include <xcb/xproto.h> |
| 24 | |
| 25 | #include <stdlib.h> |
| 26 | #include <string.h> |
| 27 | |
| 28 | #include "clientwin.h" |
| 29 | #include "dsimple.h" |
| 30 | |
| 31 | static xcb_atom_t atom_wm_state = XCB_ATOM_NONE; |
| 32 | |
| 33 | |
| 34 | |
| 35 | |
| 36 | static Bool |
| 37 | Window_Has_Property(xcb_connection_t * dpy, xcb_window_t win, xcb_atom_t atom) |
| 38 | { |
| 39 | xcb_get_property_cookie_t prop_cookie; |
| 40 | xcb_get_property_reply_t *prop_reply; |
| 41 | |
| 42 | prop_cookie = xcb_get_property (dpy, False, win, atom, |
| 43 | XCB_GET_PROPERTY_TYPE_ANY, 0, 0); |
| 44 | |
| 45 | prop_reply = xcb_get_property_reply (dpy, prop_cookie, NULL((void *)0)); |
| 46 | |
| 47 | if (prop_reply) { |
| 48 | xcb_atom_t reply_type = prop_reply->type; |
| 49 | free (prop_reply); |
| 50 | if (reply_type != XCB_NONE0L) |
| 51 | return True; |
| 52 | } |
| 53 | |
| 54 | return False; |
| 55 | } |
| 56 | |
| 57 | |
| 58 | |
| 59 | |
| 60 | static Bool |
| 61 | Window_Is_Viewable(xcb_connection_t * dpy, xcb_window_t win) |
| 62 | { |
| 63 | Bool ok = False; |
| 64 | xcb_get_window_attributes_cookie_t attr_cookie; |
| 65 | xcb_get_window_attributes_reply_t *xwa; |
| 66 | |
| 67 | attr_cookie = xcb_get_window_attributes (dpy, win); |
| 68 | xwa = xcb_get_window_attributes_reply (dpy, attr_cookie, NULL((void *)0)); |
| 69 | |
| 70 | if (xwa) { |
| 71 | ok = (xwa->_class == XCB_WINDOW_CLASS_INPUT_OUTPUT) && |
| 72 | (xwa->map_state == XCB_MAP_STATE_VIEWABLE); |
| 73 | free (xwa); |
| 74 | } |
| 75 | |
| 76 | return ok; |
| 77 | } |
| 78 | |
| 79 | |
| 80 | |
| 81 | |
| 82 | |
| 83 | |
| 84 | |
| 85 | static xcb_window_t |
| 86 | Find_Client_In_Children(xcb_connection_t * dpy, xcb_window_t win) |
| 87 | { |
| 88 | xcb_query_tree_cookie_t qt_cookie; |
| 89 | xcb_query_tree_reply_t *tree; |
| 90 | xcb_window_t *children; |
| 91 | unsigned int n_children; |
| 92 | int i; |
| 93 | |
| 94 | qt_cookie = xcb_query_tree (dpy, win); |
| 95 | tree = xcb_query_tree_reply (dpy, qt_cookie, NULL((void *)0)); |
| 96 | if (!tree) |
| 97 | return XCB_WINDOW_NONE; |
| 98 | n_children = xcb_query_tree_children_length (tree); |
| 99 | if (!n_children) { |
| 100 | free (tree); |
| 101 | return XCB_WINDOW_NONE; |
| 102 | } |
| 103 | children = xcb_query_tree_children (tree); |
| 104 | |
| 105 | |
| 106 | win = XCB_WINDOW_NONE; |
| 107 | for (i = (int) n_children - 1; i >= 0; i--) { |
| 108 | if (!Window_Is_Viewable(dpy, children[i])) { |
| 109 | |
| 110 | children[i] = XCB_WINDOW_NONE; |
| 111 | continue; |
| 112 | } |
| 113 | if (!Window_Has_Property(dpy, children[i], atom_wm_state)) |
| 114 | continue; |
| 115 | |
| 116 | |
| 117 | win = children[i]; |
| 118 | goto done; |
| 119 | } |
| 120 | |
| 121 | |
| 122 | for (i = (int) n_children - 1; i >= 0; i--) { |
| 123 | if (children[i] == XCB_WINDOW_NONE) |
| 124 | continue; |
| 125 | win = Find_Client_In_Children(dpy, children[i]); |
| 126 | if (win != XCB_WINDOW_NONE) |
| 127 | break; |
| 128 | } |
| 129 | |
| 130 | done: |
| 131 | free (tree); |
| 132 | |
| 133 | return win; |
| 134 | } |
| 135 | |
| 136 | |
| 137 | |
| 138 | |
| 139 | static xcb_window_t * |
| 140 | Find_Roots(xcb_connection_t * dpy, xcb_window_t root, unsigned int *num) |
| 141 | { |
| 142 | xcb_atom_t atom_virtual_root; |
| 143 | |
| 144 | xcb_get_property_cookie_t prop_cookie; |
| 145 | xcb_get_property_reply_t *prop_reply; |
| 146 | |
| 147 | xcb_window_t *prop_ret = NULL((void *)0); |
| 148 | |
| 149 | *num = 0; |
| 150 | |
| 151 | atom_virtual_root = Get_Atom (dpy, "_NET_VIRTUAL_ROOTS"); |
| 152 | if (atom_virtual_root == XCB_ATOM_NONE) |
| 2 | | Assuming 'atom_virtual_root' is not equal to XCB_ATOM_NONE | |
|
| |
| 153 | return NULL((void *)0); |
| 154 | |
| 155 | prop_cookie = xcb_get_property (dpy, False, root, atom_virtual_root, |
| 156 | XCB_ATOM_WINDOW, 0, 0x7fffffff); |
| 157 | prop_reply = xcb_get_property_reply (dpy, prop_cookie, NULL((void *)0)); |
| 158 | if (!prop_reply) |
| 4 | | Assuming 'prop_reply' is non-null | |
|
| |
| 159 | return NULL((void *)0); |
| 160 | |
| 161 | if ((prop_reply->value_len > 0) && (prop_reply->type == XCB_ATOM_WINDOW) |
| |
| 162 | && (prop_reply->format == 32)) { |
| 163 | int length = xcb_get_property_value_length (prop_reply); |
| 164 | prop_ret = malloc(length); |
| |
| 165 | if (prop_ret) { |
| 8 | | Assuming 'prop_ret' is non-null | |
|
| |
| 166 | memcpy (prop_ret, xcb_get_property_value(prop_reply), length)__builtin___memcpy_chk (prop_ret, xcb_get_property_value(prop_reply ), length, __builtin_object_size (prop_ret, 0)); |
| 167 | *num = prop_reply->value_len; |
| 168 | } |
| 169 | } |
| 170 | free (prop_reply); |
| 171 | |
| 172 | return prop_ret; |
| 173 | } |
| 174 | |
| 175 | |
| 176 | |
| 177 | |
| 178 | static xcb_window_t |
| 179 | Find_Child_At_Pointer(xcb_connection_t * dpy, xcb_window_t win) |
| 180 | { |
| 181 | xcb_window_t child_return = XCB_WINDOW_NONE; |
| 182 | |
| 183 | xcb_query_pointer_cookie_t qp_cookie; |
| 184 | xcb_query_pointer_reply_t *qp_reply; |
| 185 | |
| 186 | qp_cookie = xcb_query_pointer (dpy, win); |
| 187 | qp_reply = xcb_query_pointer_reply (dpy, qp_cookie, NULL((void *)0)); |
| 188 | |
| 189 | if (qp_reply) { |
| 190 | child_return = qp_reply->child; |
| 191 | free (qp_reply); |
| 192 | } |
| 193 | |
| 194 | return child_return; |
| 195 | } |
| 196 | |
| 197 | |
| 198 | |
| 199 | |
| 200 | |
| 201 | |
| 202 | |
| 203 | |
| 204 | |
| 205 | |
| 206 | |
| 207 | |
| 208 | |
| 209 | xcb_window_t |
| 210 | Find_Client(xcb_connection_t * dpy, xcb_window_t root, xcb_window_t subwin) |
| 211 | { |
| 212 | xcb_window_t *roots; |
| 213 | unsigned int i, n_roots; |
| 214 | xcb_window_t win; |
| 215 | |
| 216 | |
| 217 | roots = Find_Roots(dpy, root, &n_roots); |
| |
| 10 | | Returned allocated memory | |
|
| 218 | for (i = 0; i < n_roots; i++) { |
| 11 | | Loop condition is true. Entering loop body | |
|
| 219 | if (subwin != roots[i]) |
| |
| 220 | continue; |
| 221 | win = Find_Child_At_Pointer(dpy, subwin); |
| 222 | if (win == XCB_WINDOW_NONE) |
| |
| 223 | return subwin; |
| 14 | | Potential leak of memory pointed to by 'roots' |
|
| 224 | subwin = win; |
| 225 | break; |
| 226 | } |
| 227 | free (roots); |
| 228 | |
| 229 | if (atom_wm_state == XCB_ATOM_NONE) { |
| 230 | atom_wm_state = Get_Atom(dpy, "WM_STATE"); |
| 231 | if (atom_wm_state == XCB_ATOM_NONE) |
| 232 | return subwin; |
| 233 | } |
| 234 | |
| 235 | |
| 236 | if (Window_Has_Property(dpy, subwin, atom_wm_state)) |
| 237 | return subwin; |
| 238 | |
| 239 | |
| 240 | win = Find_Client_In_Children(dpy, subwin); |
| 241 | if (win != XCB_WINDOW_NONE) |
| 242 | return win; |
| 243 | |
| 244 | |
| 245 | return subwin; |
| 246 | } |