/* $Id$ */ /* Copyright (c) 2010-2020 Pierre Pronchery */ /* This file is part of DeforaOS Pager Panel */ /* This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, version 3 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include #include #include #include #include #if GTK_CHECK_VERSION(3, 0, 0) # include #endif #include #include #include #include "Panel/applet.h" #define N_(string) string /* Systray */ /* private */ /* types */ typedef struct _PanelApplet { PanelAppletHelper * helper; GtkWidget * hbox; GtkWidget * owner; gulong source; } Systray; /* constants */ #define SYSTEM_TRAY_REQUEST_DOCK 0 #define SYSTEM_TRAY_BEGIN_MESSAGE 1 #define SYSTEM_TRAY_CANCEL_MESSAGE 2 /* prototypes */ static Systray * _systray_init(PanelAppletHelper * helper, GtkWidget ** widget); static void _systray_destroy(Systray * systray); /* callbacks */ static GdkFilterReturn _systray_on_filter(GdkXEvent * xevent, GdkEvent * event, gpointer data); static void _systray_on_owner_destroy(gpointer data); static void _systray_on_screen_changed(GtkWidget * widget, GdkScreen * previous, gpointer data); /* public */ /* variables */ PanelAppletDefinition applet = { N_("System tray"), "gnome-monitor", NULL, _systray_init, _systray_destroy, NULL, FALSE, TRUE }; /* private */ /* functions */ /* systray_init */ static Systray * _systray_init(PanelAppletHelper * helper, GtkWidget ** widget) { Systray * systray; gint height = 24; if((systray = malloc(sizeof(*systray))) == NULL) { error_set("%s: %s", applet.name, strerror(errno)); return NULL; } systray->helper = helper; #if GTK_CHECK_VERSION(3, 0, 0) systray->hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0); #else systray->hbox = gtk_hbox_new(FALSE, 0); #endif gtk_icon_size_lookup(panel_window_get_icon_size(helper->window), NULL, &height); gtk_widget_set_size_request(systray->hbox, -1, height); systray->owner = NULL; systray->source = g_signal_connect(systray->hbox, "screen-changed", G_CALLBACK(_systray_on_screen_changed), systray); gtk_widget_show(systray->hbox); *widget = systray->hbox; return systray; } /* systray_destroy */ static void _systray_destroy(Systray * systray) { GdkWindow * window; if(systray->source != 0) g_signal_handler_disconnect(systray->hbox, systray->source); systray->source = 0; if(systray->owner != NULL) { window = gtk_widget_get_window(systray->owner); gdk_window_remove_filter(window, _systray_on_filter, systray); gtk_widget_destroy(systray->owner); } gtk_widget_destroy(systray->hbox); free(systray); } /* callbacks */ /* systray_on_filter */ static GdkFilterReturn _filter_clientmessage(Systray * systray, XClientMessageEvent * xev); static GdkFilterReturn _systray_on_filter(GdkXEvent * xevent, GdkEvent * event, gpointer data) { Systray * systray = data; XEvent * xev = xevent; (void) event; #ifdef DEBUG fprintf(stderr, "DEBUG: %s()\n", __func__); #endif if(xev->type == ClientMessage) return _filter_clientmessage(systray, &xev->xclient); return GDK_FILTER_CONTINUE; } static GdkFilterReturn _filter_clientmessage(Systray * systray, XClientMessageEvent * xev) { GtkWidget * socket; switch(xev->data.l[1]) { case SYSTEM_TRAY_REQUEST_DOCK: if(xev->data.l[2] == 0) return GDK_FILTER_CONTINUE; socket = gtk_socket_new(); gtk_widget_show(socket); gtk_box_pack_start(GTK_BOX(systray->hbox), socket, FALSE, TRUE, 0); gtk_socket_add_id(GTK_SOCKET(socket), xev->data.l[2]); #ifdef DEBUG fprintf(stderr, "DEBUG: %s() %ld\n", __func__, xev->data.l[2]); #endif return GDK_FILTER_REMOVE; } return GDK_FILTER_CONTINUE; } /* systray_on_owner_destroy */ static void _systray_on_owner_destroy(gpointer data) { Systray * systray = data; GdkWindow * window; if(systray->owner != NULL && (window = gtk_widget_get_window(systray->owner)) != NULL) gdk_window_remove_filter(window, _systray_on_filter, systray); systray->owner = NULL; } /* systray_on_screen_changed */ static void _systray_on_screen_changed(GtkWidget * widget, GdkScreen * previous, gpointer data) { Systray * systray = data; const char name[] = "_NET_SYSTEM_TRAY_S"; char buf[sizeof(name) + 2]; GdkScreen * screen; GdkAtom atom; GdkDisplay * display; GdkWindow * root; GdkWindow * window; XEvent xev; (void) previous; if(systray->owner != NULL) return; screen = gtk_widget_get_screen(widget); snprintf(buf, sizeof(buf), "%s%d", name, gdk_screen_get_number(screen)); atom = gdk_atom_intern(buf, FALSE); systray->owner = gtk_invisible_new(); g_signal_connect_swapped(systray->owner, "destroy", G_CALLBACK( _systray_on_owner_destroy), systray); gtk_widget_realize(systray->owner); window = gtk_widget_get_window(systray->owner); if(gdk_selection_owner_set(window, atom, gtk_get_current_event_time(), TRUE) != TRUE) return; display = gtk_widget_get_display(widget); root = gdk_screen_get_root_window(screen); memset(&xev, 0, sizeof(xev)); xev.xclient.type = ClientMessage; xev.xclient.window = GDK_WINDOW_XID(root); xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display( display, "MANAGER"); xev.xclient.format = 32; xev.xclient.data.l[0] = gtk_get_current_event_time(); xev.xclient.data.l[1] = gdk_x11_atom_to_xatom(atom); xev.xclient.data.l[2] = GDK_WINDOW_XID(window); gdk_error_trap_push(); XSendEvent(GDK_DISPLAY_XDISPLAY(display), GDK_WINDOW_XID(root), False, StructureNotifyMask, &xev); gdk_error_trap_pop(); gtk_widget_add_events(systray->owner, GDK_PROPERTY_CHANGE_MASK | GDK_STRUCTURE_MASK); gdk_window_add_filter(window, _systray_on_filter, systray); }