+#include "panel.h"
+
+GSList *icons;
+
+/* defined in the systray spec */
+#define SYSTEM_TRAY_REQUEST_DOCK 0
+#define SYSTEM_TRAY_BEGIN_MESSAGE 1
+#define SYSTEM_TRAY_CANCEL_MESSAGE 2
+
+// selection window
+Window net_sel_win = None;
+
+// freedesktop specification doesn't allow multi systray
+Systraybar systray;
+int refresh_systray;
+int systray_enabled;
+int systray_max_icon_size;
+
+// background pixmap if we render ourselves the icons
+static Pixmap render_background;
+
+
+void default_systray()
+{
+ memset(&systray, 0, sizeof(Systraybar));
+ render_background = 0;
+ systray.alpha = 100;
+ systray.sort = 3;
+ systray.area._draw_foreground = draw_systray;
+ systray.area.size_mode = SIZE_BY_CONTENT;
+ systray.area._resize = resize_systray;
+}
+
+void cleanup_systray()
+{
+ stop_net();
+ systray_enabled = 0;
+ systray_max_icon_size = 0;
+ systray.area.on_screen = 0;
+ free_area(&systray.area);
+ if (render_background) {
+ XFreePixmap(server.dsp, render_background);
+ render_background = 0;
+ }
+}
+
+void init_systray()
+{
+ start_net();
+
+ if (!systray_enabled)
+ return;
+
+ if (!server.visual32 && (systray.alpha != 100 || systray.brightness != 0 || systray.saturation != 0)) {
+ printf("No 32 bit visual for your X implementation. 'systray_asb = 100 0 0' will be forced\n");
+ systray.alpha = 100;
+ systray.brightness = systray.saturation = 0;
+ }
+}
+
+
+void init_systray_panel(void *p)
+{
+ Panel *panel =(Panel*)p;
+
+ systray.area.parent = p;
+ systray.area.panel = p;
+
+ GSList *l;
+ int count = 0;
+ for (l = systray.list_icons; l ; l = l->next) {
+ if (!((TrayWindow*)l->data)->hide)
+ count++;
+ }
+ if (count == 0)
+ hide(&systray.area);
+ else
+ show(&systray.area);
+ refresh_systray = 0;
+}
+
+
+void draw_systray(void *obj, cairo_t *c)
+{
+ // here, sysbar's position is defined. so we can calculate position of tray icon.
+ Systraybar *sysbar = obj;
+ Panel *panel = sysbar->area.panel;
+ int i, posx, posy;
+ int start = panel->area.bg->border.width + panel->area.paddingy + systray.area.bg->border.width + systray.area.paddingy +sysbar->marging/2;
+ if (panel_horizontal) {
+ posy = start;
+ posx = systray.area.posx + systray.area.bg->border.width + systray.area.paddingxlr;
+ }
+ else {
+ posx = start;
+ posy = systray.area.posy + systray.area.bg->border.width + systray.area.paddingxlr;
+ }
+
+ TrayWindow *traywin;
+ GSList *l;
+ for (i=1, l = systray.list_icons; l ; i++, l = l->next) {
+ traywin = (TrayWindow*)l->data;
+ if (traywin->hide) continue;
+
+ traywin->y = posy;
+ traywin->x = posx;
+ traywin->width = sysbar->icon_size;
+ traywin->height = sysbar->icon_size;
+ if (panel_horizontal) {
+ if (i % sysbar->icons_per_column)
+ posy += sysbar->icon_size + sysbar->area.paddingx;
+ else {
+ posy = start;
+ posx += (sysbar->icon_size + systray.area.paddingx);
+ }
+ }
+ else {
+ if (i % sysbar->icons_per_row)
+ posx += sysbar->icon_size + systray.area.paddingx;
+ else {
+ posx = start;
+ posy += (sysbar->icon_size + systray.area.paddingx);
+ }
+ }
+
+ // position and size the icon window
+ XMoveResizeWindow(server.dsp, traywin->id, traywin->x, traywin->y, sysbar->icon_size, sysbar->icon_size);
+ XResizeWindow(server.dsp, traywin->tray_id, sysbar->icon_size, sysbar->icon_size);
+ }
+
+ if (server.real_transparency || systray.alpha != 100 || systray.brightness != 0 || systray.saturation != 0) {
+ if (render_background) XFreePixmap(server.dsp, render_background);
+ render_background = XCreatePixmap(server.dsp, server.root_win, systray.area.width, systray.area.height, server.depth);
+ XCopyArea(server.dsp, systray.area.pix, render_background, server.gc, 0, 0, systray.area.width, systray.area.height, 0, 0);
+ }
+
+ refresh_systray = 1;
+}
+
+
+int resize_systray(void *obj)
+{
+ Systraybar *sysbar = obj;
+ GSList *l;
+ int count;
+
+ if (panel_horizontal)
+ sysbar->icon_size = sysbar->area.height;
+ else
+ sysbar->icon_size = sysbar->area.width;
+ sysbar->icon_size = sysbar->icon_size - (2 * sysbar->area.bg->border.width) - (2 * sysbar->area.paddingy);
+ if (systray_max_icon_size > 0 && sysbar->icon_size > systray_max_icon_size)
+ sysbar->icon_size = systray_max_icon_size;
+ count = 0;
+ for (l = systray.list_icons; l ; l = l->next) {
+ if (!((TrayWindow*)l->data)->hide)
+ count++;
+ }
+ //printf("count %d\n", count);
+
+ if (panel_horizontal) {
+ int height = sysbar->area.height - 2*sysbar->area.bg->border.width - 2*sysbar->area.paddingy;
+ // here icons_per_column always higher than 0
+ sysbar->icons_per_column = (height+sysbar->area.paddingx) / (sysbar->icon_size+sysbar->area.paddingx);
+ sysbar->marging = height - (sysbar->icons_per_column-1)*(sysbar->icon_size+sysbar->area.paddingx) - sysbar->icon_size;
+ sysbar->icons_per_row = count / sysbar->icons_per_column + (count%sysbar->icons_per_column != 0);
+ systray.area.width = (2 * systray.area.bg->border.width) + (2 * systray.area.paddingxlr) + (sysbar->icon_size * sysbar->icons_per_row) + ((sysbar->icons_per_row-1) * systray.area.paddingx);
+ }
+ else {
+ int width = sysbar->area.width - 2*sysbar->area.bg->border.width - 2*sysbar->area.paddingy;
+ // here icons_per_row always higher than 0
+ sysbar->icons_per_row = (width+sysbar->area.paddingx) / (sysbar->icon_size+sysbar->area.paddingx);
+ sysbar->marging = width - (sysbar->icons_per_row-1)*(sysbar->icon_size+sysbar->area.paddingx) - sysbar->icon_size;
+ sysbar->icons_per_column = count / sysbar->icons_per_row+ (count%sysbar->icons_per_row != 0);
+ systray.area.height = (2 * systray.area.bg->border.width) + (2 * systray.area.paddingxlr) + (sysbar->icon_size * sysbar->icons_per_column) + ((sysbar->icons_per_column-1) * systray.area.paddingx);
+ }
+ return 1;
+}
+
+
+// ***********************************************
+// systray protocol
+
+void start_net()
+{
+ if (net_sel_win) {
+ // protocol already started
+ if (!systray_enabled)
+ stop_net();
+ return;
+ }
+ else
+ if (!systray_enabled)
+ return;
+
+ Window win = XGetSelectionOwner(server.dsp, server.atom._NET_SYSTEM_TRAY_SCREEN);
+
+ // freedesktop systray specification
+ if (win != None) {
+ // search pid
+ Atom _NET_WM_PID, actual_type;
+ int actual_format;
+ unsigned long nitems;
+ unsigned long bytes_after;
+ unsigned char *prop = 0;
+ int pid;
+
+ _NET_WM_PID = XInternAtom(server.dsp, "_NET_WM_PID", True);
+ int ret = XGetWindowProperty(server.dsp, win, _NET_WM_PID, 0, 1024, False, AnyPropertyType, &actual_type, &actual_format, &nitems, &bytes_after, &prop);
+
+ fprintf(stderr, "tint2 : another systray is running");
+ if (ret == Success && prop) {
+ pid = prop[1] * 256;
+ pid += prop[0];
+ fprintf(stderr, " pid=%d", pid);
+ }
+ fprintf(stderr, "\n");
+ return;
+ }
+
+ // init systray protocol
+ net_sel_win = XCreateSimpleWindow(server.dsp, server.root_win, -1, -1, 1, 1, 0, 0, 0);
+
+ // v0.3 trayer specification. tint2 always horizontal.
+ // Vertical panel will draw the systray horizontal.
+ long orient = 0;
+ XChangeProperty(server.dsp, net_sel_win, server.atom._NET_SYSTEM_TRAY_ORIENTATION, XA_CARDINAL, 32, PropModeReplace, (unsigned char *) &orient, 1);
+ VisualID vid;
+ if (server.visual32 && (systray.alpha != 100 || systray.brightness != 0 || systray.saturation != 0))
+ vid = XVisualIDFromVisual(server.visual32);
+ else
+ vid = XVisualIDFromVisual(server.visual);
+ XChangeProperty(server.dsp, net_sel_win, XInternAtom(server.dsp, "_NET_SYSTEM_TRAY_VISUAL", False), XA_VISUALID, 32, PropModeReplace, (unsigned char*)&vid, 1);
+
+ XSetSelectionOwner(server.dsp, server.atom._NET_SYSTEM_TRAY_SCREEN, net_sel_win, CurrentTime);
+ if (XGetSelectionOwner(server.dsp, server.atom._NET_SYSTEM_TRAY_SCREEN) != net_sel_win) {
+ stop_net();
+ fprintf(stderr, "tint2 : can't get systray manager\n");
+ return;
+ }
+
+ //fprintf(stderr, "tint2 : systray started\n");
+ XClientMessageEvent ev;
+ ev.type = ClientMessage;
+ ev.window = server.root_win;
+ ev.message_type = server.atom.MANAGER;
+ ev.format = 32;
+ ev.data.l[0] = CurrentTime;
+ ev.data.l[1] = server.atom._NET_SYSTEM_TRAY_SCREEN;
+ ev.data.l[2] = net_sel_win;
+ ev.data.l[3] = 0;
+ ev.data.l[4] = 0;
+ XSendEvent(server.dsp, server.root_win, False, StructureNotifyMask, (XEvent*)&ev);
+}