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@@ -0,0 +1,146 @@
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+/*
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+ * wmfs2 by Martin Duquesnoy <xorg62@gmail.com> { for(i = 2011; i < 2111; ++i) ©(i); }
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+ * For license, see COPYING.
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+ */
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+
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+#include "wmfs.h"
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+#include "systray.h"
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+
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+bool
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+systray_acquire(void)
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+{
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+ XSetWindowAttributes wattr =
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+ {
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+ .event_mask = ButtonPressMask | ExposureMask,
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+ .override_redirect = true,
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+ .background_pixmap = ParentRelative,
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+ .background_pixel = 0
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+ };
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+
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+ if(!(W->flags & WMFS_SYSTRAY) || W->systray.win)
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+ return false;
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+
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+ if(XGetSelectionOwner(W->dpy, W->net_atom[net_system_tray_s]) != None)
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+ {
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+ warnx("Can't initialize system tray: owned by another process.");
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+ return False;
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+ }
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+
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+ /* Init traywin window */
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+ XChangeWindowAttributes(W->dpy, W->systray.win, CWEventMask | CWOverrideRedirect | CWBackPixel, &wattr);
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+ XSelectInput(W->dpy, W->systray.win, KeyPressMask | ButtonPressMask);
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+ XMapRaised(W->dpy, W->systray.win);
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+ XSetSelectionOwner(W->dpy, W->net_atom[net_system_tray_s], W->systray.win, CurrentTime);
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+
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+ if(XGetSelectionOwner(W->dpy, W->net_atom[net_system_tray_s]) != W->systray.win)
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+ {
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+ systray_freeicons();
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+ warnx("System tray: can't get systray manager");
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+
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+ return false;
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+ }
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+
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+ ewmh_send_message(W->root, W->root, "MANAGER", CurrentTime,
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+ W->net_atom[net_system_tray_s], W->systray.win, 0, 0);
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+
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+ XSync(dpy, false);
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+
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+ return true;
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+}
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+
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+void
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+systray_add(Window win)
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+{
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+ struct _systray *s;
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+
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+ if(!(W->flags & WMFS_SYSTRAY))
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+ return;
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+
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+ s = xcalloc(1, sizeof(struct _systray));
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+ s->win = win;
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+
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+ s->geo.h = W->systray.barwin->geo.h;
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+ s->geo.w = W->systray.barwin->geo.w + 2;
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+
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+ ewmh_set_win_state(s->win, WithdrawnState);
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+ XSelectInput(W->dpy, s->win, StructureNotifyMask | PropertyChangeMask| EnterWindowMask | FocusChangeMask);
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+ XReparentWindow(W->dpy, s->win, W->systray.win, 0, 0);
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+
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+ ewmh_send_message(s->win, s->win, "_XEMBED", CurrentTime,
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+ XEMBED_EMBEDDED_NOTIFY, 0, W->systray,win, 0);
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+
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+ SLIST_INSERT_HEAD(&W->systray.head, s, next);
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+}
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+
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+void
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+systray_del(struct _systray *s)
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+{
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+ if(!(W->flags & WMFS_SYSTRAY))
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+ return;
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+
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+ SLIST_REMOVE(&W->systray.head, s, _systray, next);
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+ free(s);
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+}
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+
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+void
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+systray_state(struct _systray *s)
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+{
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+ long flags;
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+ int code = 0;
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+
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+ if(!(W->flags & WMFS_SYSTRAY) || !(flags = ewmh_get_xembed_state(s->win)))
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+ return;
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+
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+ if(flags & XEMBED_MAPPED)
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+ {
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+ code = XEMBED_WINDOW_ACTIVATE;
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+ XMapRaised(W->dpy, s->win);
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+ ewmh_set_win_state(s->win, NormalState);
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+ }
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+ else
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+ {
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+ code = XEMBED_WINDOW_DEACTIVATE;
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+ XUnmapWindow(W->dpy, s->win);
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+ ewmh_set_win_state(s->win, WithdrawnState);
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+ }
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+
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+ ewmh_send_message(s->win, s->win, "_XEMBED", CurrentTime, code, 0, 0, 0);
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+}
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+
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+void
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+systray_freeicons(void)
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+{
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+ struct _systray *i;
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+
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+ if(!(W->flags & WMFS_SYSTRAY))
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+ return;
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+
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+ while(!SLIST_EMPTY(&W->systray.head))
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+ {
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+ i = SLIST_FIRST(&W->systray.head);
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+ SLIST_REMOVE_HEAD(&W->systray.head, next);
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+
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+ XUnmapWindow(dpy, i->win);
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+ XReparentWindow(dpy, i->win, W->root, 0, 0);
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+ free(i);
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+ }
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+
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+ XSetSelectionOwner(W->dpy, W->net_atom[net_system_tray_s], None, CurrentTime);
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+ XDestroyWindow(W->dpy, W->systray.win);
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+ XSync(W->dpy, false);
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+}
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+
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+struct _systray*
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+systray_find(Window win)
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+{
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+ struct _systray *i;
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+
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+ if(!(W->flags & WMFS_SYSTRAY))
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+ return NULL;
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+
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+ SLIST_FOREACH(i, &W->systray.head, next)
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+ if(i->win == win)
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+ return i;
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+
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+ return NULL;
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+}
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