Fall back to XQueryTree if necessary

diff --git a/pager.c b/pager.c
index 10c1703..c351049 100644 (file)
--- a/pager.c
+++ b/pager.c
@@ -22,6 +22,7 @@ static double aspect, scale;
 
 static int desktop_geometry_supported;
 static int current_desktop_supported;
+static int client_list_supported;
 static int active_window_supported;
 static int moveresize_supported;
 
@@ -84,6 +85,7 @@ void check_support() {
   for (i = 0; i < num_items; i++) {
     if (data[i] == desktop_geometry_atom) desktop_geometry_supported = 1;
     if (data[i] == current_desktop_atom) current_desktop_supported = 1;
+    if (data[i] == client_list_atom) client_list_supported = 1;
     if (data[i] == active_window_atom) active_window_supported = 1;
     if (data[i] == moveresize_window_atom) moveresize_supported = 1;
   }
@@ -92,7 +94,7 @@ void check_support() {
 }
 
 void enumerate_clients(client_t ***clients, unsigned long *num_clients, unsigned long *active_desktop, unsigned long *active_window) {
-  Window root, dockapp_root, child;
+  Window root, qroot, qparent, dockapp_root, child, *wins, client;
   int x, y;
   unsigned int width, height, border, depth;
   unsigned int root_width, root_height;
@@ -120,7 +122,12 @@ void enumerate_clients(client_t ***clients, unsigned long *num_clients, unsigned
   *active_window = get_atom_long(active_window_atom, XA_WINDOW, dockapp_root);
   *active_desktop = get_atom_long(current_desktop_atom, XA_CARDINAL, DefaultRootWindow(DADisplay));
 
-  get_atom_longs(client_list_atom, XA_WINDOW, dockapp_root, &data, num_clients);
+  if (client_list_supported) {
+    get_atom_longs(client_list_atom, XA_WINDOW, dockapp_root, &data, num_clients);
+  }
+  else {
+    XQueryTree(DADisplay, dockapp_root, &qroot, &qparent, &wins, (unsigned int *) num_clients);
+  }
 
   *clients = (client_t **) malloc(sizeof(client_t *) * *num_clients);
   if (! *clients) {
@@ -136,11 +143,14 @@ void enumerate_clients(client_t ***clients, unsigned long *num_clients, unsigned
     }
     (*clients)[i]->window = 0;
 
+    if (client_list_supported) client = data[i];
+    else client = XmuClientWindow(DADisplay, wins[i]);
+
     /* Don't page the pager. */
-    if (data[i] == DAWindow) continue;
+    if (client == DAWindow) continue;
 
     /* Check the window is on our desktop (or all desktops). */
-    client_desktop = get_atom_long(client_desktop_atom, XA_CARDINAL, data[i]);
+    client_desktop = get_atom_long(client_desktop_atom, XA_CARDINAL, client);
     if (desktop > -1) {
       if (client_desktop != desktop && client_desktop != -1) continue;
     }
@@ -149,20 +159,20 @@ void enumerate_clients(client_t ***clients, unsigned long *num_clients, unsigned
     }
 
     /* Try to get its dimensions. */
-    if (! XGetGeometry(DADisplay, data[i], &root, &x, &y, &width, &height, &border, &depth)) continue;
-    if (! XTranslateCoordinates(DADisplay, data[i], root, x, y, &x, &y, &child)) continue;
+    if (! XGetGeometry(DADisplay, client, &root, &x, &y, &width, &height, &border, &depth)) continue;
+    if (! XTranslateCoordinates(DADisplay, client, root, x, y, &x, &y, &child)) continue;
 
     /* Make sure it isn't hidden or shaded. */
     draw = 1;
-    get_atom_longs(client_state_atom, XA_ATOM, data[i], &states, &num_states);
+    get_atom_longs(client_state_atom, XA_ATOM, client, &states, &num_states);
     for (j = 0; j < num_states; j++) {
-      if (states[j] == shaded_state) draw = 0;
+      if (states[j] == shaded_state) height = 3.0 * scale;
       if (states[j] == skip_pager_state) draw = 0;
       if (states[j] == hidden_state) draw = 0;
     }
     if (! draw) continue;
 
-    (*clients)[i]->window = data[i];
+    (*clients)[i]->window = client;
 
     /* Scale it. */
     (*clients)[i]->rect.x = (double) x / scale;
@@ -171,7 +181,8 @@ void enumerate_clients(client_t ***clients, unsigned long *num_clients, unsigned
     (*clients)[i]->rect.height = (double) height / aspect;
   }
 
-  XFree(data);
+  if (client_list_supported) XFree(data);
+  else XFree(wins);
 }
 
 void destroy_clients(client_t ***clients, unsigned long num_clients) {