New import

git-svn-id: http://tint2.googlecode.com/svn/trunk@13 121b4492-b84c-0410-8b4c-0d4edfb3f3cc

src/systray/kde.c

@@ -0,0 +1,76 @@
+#include "kde.h"
+#include "icons.h"
+#include "docker.h"
+#include "xproperty.h"
+#include <assert.h>
+#include <X11/Xatom.h>
+
+Atom kde_systray_prop = None;
+
+void kde_init()
+{
+  kde_systray_prop = XInternAtom(display,
+                                 "_KDE_NET_SYSTEM_TRAY_WINDOWS", False);
+  assert(kde_systray_prop);
+
+  XSelectInput(display, root, PropertyChangeMask);
+  kde_update_icons();
+}
+
+void kde_update_icons()
+{
+  gulong count = (unsigned) -1; /* grab as many as possible */
+  Window *ids;
+  unsigned int i;
+  GSList *it, *next;
+  gboolean removed = FALSE; /* were any removed? */
+
+  if (! xprop_get32(root, kde_systray_prop, XA_WINDOW, sizeof(Window)*8,
+                    &count, &ids))
+    return;
+
+  /* add new windows to our list */
+  for (i = 0; i < count; ++i) {
+    for (it = icons; it != NULL; it = g_slist_next(it)) {
+      TrayWindow *traywin = it->data;
+      if (traywin->id == ids[i])
+        break;
+    }
+    if (!it)
+      icon_add(ids[i], KDE);
+  }
+
+  /* remove windows from our list that no longer exist in the property */
+  for (it = icons; it != NULL;) {
+    TrayWindow *traywin = it->data;
+    gboolean exists;
+
+    if (traywin->type != KDE) {
+      /* don't go removing non-kde windows */
+      exists = TRUE;
+    } else {
+      exists = FALSE;
+      for (i = 0; i < count; ++i) {
+        if (traywin->id == ids[i]) {
+          exists = TRUE;
+          break;
+        }
+      }
+    }
+    
+    next = g_slist_next(it);
+    if (!exists) {
+      icon_remove(it);
+      removed =TRUE;
+    }
+    it = next;
+  }
+
+  if (removed) {
+    /* at least one tray app was removed, so reorganize 'em all and resize*/
+    reposition_icons();
+    fix_geometry();
+  }
+
+  XFree(ids);
+}