tint2/src/systray/systraybar.c

382 lines
10 KiB
C
Raw Normal View History

/**************************************************************************
* Tint2 : systraybar
*
* Copyright (C) 2009 thierry lorthiois (lorthiois@bbsoft.fr)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**************************************************************************/
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#include <Imlib2.h>
#include "systraybar.h"
#include "server.h"
#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, hint_win = None;
// freedesktop specification doesn't allow multi systray
Systraybar systray;
void init_systray()
{
Panel *panel = &panel1[0];
systray.area.parent = panel;
systray.area.panel = panel;
systray.area._draw_foreground = draw_systray;
systray.area._resize = resize_systray;
if (systray.area.on_screen)
systray.area.on_screen = init_net();
if (!systray.area.on_screen)
return;
// configure systray
// draw only one systray (even with multi panel)
systray.area.posy = panel->area.pix.border.width + panel->area.paddingy;
systray.area.height = panel->area.height - (2 * systray.area.posy);
systray.area.width = 0;
systray.area.posx = panel->area.width - panel->area.paddingxlr - panel->area.pix.border.width - systray.area.width;
if (panel->clock.area.on_screen)
systray.area.posx -= (panel->clock.area.width + panel->area.paddingx);
#ifdef ENABLE_BATTERY
if (panel->battery.area.on_screen)
systray.area.posx -= (panel->battery.area.width + panel->area.paddingx);
#endif
systray.area.redraw = 1;
}
void cleanup_systray()
{
if (systray.list_icons) {
GSList *it;
for (it = systray.list_icons; it; it = it->next)
remove_icon((TrayWindow*)it->data);
g_slist_free(systray.list_icons);
systray.list_icons = 0;
}
free_area(&systray.area);
cleanup_net();
}
void draw_systray(void *obj, cairo_t *c, int active)
{
Systraybar *sysbar = obj;
Panel *panel = sysbar->area.panel;
TrayWindow *traywin;
GSList *l;
int icon_size;
//printf("draw_systray %d %d\n", systray.area.posx, systray.area.width);
icon_size = sysbar->area.height - (2 * sysbar->area.pix.border.width) - (2 * sysbar->area.paddingy);
for (l = systray.list_icons; l ; l = l->next) {
traywin = (TrayWindow*)l->data;
// watch for the icon trying to resize itself!
//XSelectInput(server.dsp, traywin->id, StructureNotifyMask|ResizeRedirectMask);
XSelectInput(server.dsp, traywin->id, StructureNotifyMask);
// position and size the icon window
XMoveResizeWindow(server.dsp, traywin->id, traywin->x, traywin->y, icon_size, icon_size);
//printf("icon %d, %d, %d\n", traywin->x, traywin->y, icon_size);
// ceci intervertie les fonds : le premier icone prend le fond du dernier
// le dernier prend le fond de l'avant dernier, ...
XSetWindowBackgroundPixmap (server.dsp, panel->main_win, systray.area.pix.pmap);
// flush before clearing, otherwise the clear isn't effective.
XFlush(server.dsp);
// make sure the new child will get the right stuff in its background
// for ParentRelative.
XClearWindow(server.dsp, panel->main_win);
// show the window
XMapRaised(server.dsp, traywin->id);
}
}
void resize_systray(void *obj)
{
Systraybar *sysbar = obj;
Panel *panel = sysbar->area.panel;
TrayWindow *traywin;
GSList *l;
int count, posx, posy;
int icon_size;
icon_size = sysbar->area.height - (2 * sysbar->area.pix.border.width) - (2 * sysbar->area.paddingy);
count = g_slist_length(systray.list_icons);
if (!count) systray.area.width = 0;
else systray.area.width = (2 * systray.area.pix.border.width) + (2 * systray.area.paddingxlr) + (icon_size * count) + ((count-1) * systray.area.paddingx);
systray.area.posx = panel->area.width - panel->area.pix.border.width - panel->area.paddingxlr - systray.area.width;
if (panel->clock.area.on_screen)
systray.area.posx -= (panel->clock.area.width + panel->area.paddingx);
#ifdef ENABLE_BATTERY
if (panel->battery.area.on_screen)
systray.area.posx -= (panel->battery.area.width + panel->area.paddingx);
#endif
systray.area.redraw = 1;
posy = panel->area.pix.border.width + panel->area.paddingy + systray.area.pix.border.width + systray.area.paddingy;
posx = systray.area.posx + systray.area.pix.border.width + systray.area.paddingxlr;
for (l = systray.list_icons; l ; l = l->next) {
traywin = (TrayWindow*)l->data;
traywin->y = posy;
traywin->x = posx;
traywin->width = icon_size;
traywin->height = icon_size;
posx += (icon_size + systray.area.paddingx);
}
// resize other objects on panel
printf("resize_systray %d %d\n", systray.area.posx, systray.area.width);
}
/*
void create_hint_win()
{
XWMHints hints;
XClassHint classhints;
Panel *panel = systray.area.panel;
hint_win = XCreateSimpleWindow(server.dsp, server.root_win, 0, 0, 1, 1, 0, 0, 0);
hints.flags = StateHint | WindowGroupHint | IconWindowHint;
hints.initial_state = WithdrawnState;
hints.window_group = hint_win;
hints.icon_window = panel->main_win;
classhints.res_name = "docker";
classhints.res_class = "Docker";
XSetWMProperties(server.dsp, hint_win, NULL, NULL, NULL, 0,
NULL, &hints, &classhints);
XMapWindow(server.dsp, hint_win);
}
*/
int init_net()
{
if (XGetSelectionOwner(server.dsp, server.atom._NET_SYSTEM_TRAY_SCREEN) != None) {
fprintf(stderr, "tint2 : another systray is running\n");
return 0;
}
//create_hint_win();
// init systray protocol
net_sel_win = XCreateSimpleWindow(server.dsp, server.root_win, -1, -1, 1, 1, 0, 0, 0);
// v0.2 trayer specification. tint2 always orizontal.
int orient = 0;
XChangeProperty(server.dsp, net_sel_win, server.atom._NET_SYSTEM_TRAY_ORIENTATION, XA_CARDINAL, 32, PropModeReplace, (unsigned char *) &orient, 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) {
fprintf(stderr, "tint2 : can't get systray manager\n");
return 0;
}
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);
return 1;
}
void cleanup_net()
{
if (net_sel_win != None) {
XDestroyWindow(server.dsp, net_sel_win);
net_sel_win = None;
}
}
/*
void fix_geometry()
{
GSList *it;
Panel *panel = systray.area.panel;
// find the proper width and height
width = 0;
height = icon_size;
for (it = icons; it != NULL; it = g_slist_next(it)) {
width += icon_size;
}
XResizeWindow(server.dsp, panel->main_win, width + border * 2, height + border * 2);
}
*/
gboolean error;
int window_error_handler(Display *d, XErrorEvent *e)
{
d=d;e=e;
error = TRUE;
if (e->error_code != BadWindow) {
printf("error_handler %d\n", e->error_code);
}
return 0;
}
gboolean icon_swallow(Window id)
{
XErrorHandler old;
Panel *panel = systray.area.panel;
error = FALSE;
old = XSetErrorHandler(window_error_handler);
XReparentWindow(server.dsp, id, panel->main_win, 0, 0);
printf("icon_swallow %lx %lx\n", id, panel->main_win);
XSync(server.dsp, False);
XSetErrorHandler(old);
return !error;
}
// The traywin must have its id and type set.
gboolean add_icon(Window id)
{
TrayWindow *traywin;
if (!icon_swallow(id)) {
fprintf(stderr, "tint2 : not icon_swallow\n");
return FALSE;
}
traywin = g_new0(TrayWindow, 1);
traywin->id = id;
systray.list_icons = g_slist_prepend(systray.list_icons, traywin);
printf("ajout d'un icone %d (%lx)\n", g_slist_length(systray.list_icons), id);
systray.area.resize = 1;
systray.area.redraw = 1;
// changed in systray force resize on panel
Panel *panel = systray.area.panel;
panel->area.resize = 1;
panel_refresh = 1;
return TRUE;
}
void remove_icon(TrayWindow *traywin)
{
XErrorHandler old;
XSelectInput(server.dsp, traywin->id, NoEventMask);
// reparent to root
error = FALSE;
old = XSetErrorHandler(window_error_handler);
XReparentWindow(server.dsp, traywin->id, server.root_win, 0, 0);
XSync(server.dsp, False);
XSetErrorHandler(old);
// remove from our list
systray.list_icons = g_slist_remove(systray.list_icons, traywin);
g_free(traywin);
printf("suppression d'un icone %d\n", g_slist_length(systray.list_icons));
systray.area.resize = 1;
// changed in systray force resize on panel
Panel *panel = systray.area.panel;
panel->area.resize = 1;
panel_refresh = 1;
}
void net_message(XClientMessageEvent *e)
{
unsigned long opcode;
Window id;
opcode = e->data.l[1];
switch (opcode) {
case SYSTEM_TRAY_REQUEST_DOCK:
id = e->data.l[2];
if (id) add_icon(id);
break;
case SYSTEM_TRAY_BEGIN_MESSAGE:
case SYSTEM_TRAY_CANCEL_MESSAGE:
// we don't show baloons messages.
break;
default:
if (opcode == server.atom._NET_SYSTEM_TRAY_MESSAGE_DATA) {
printf("message from dockapp: %s\n", e->data.b);
}
else
printf("SYSTEM_TRAY : unknown message type\n");
break;
}
}
void refresh_systray()
{
TrayWindow *traywin;
GSList *l;
for (l = systray.list_icons; l ; l = l->next) {
traywin = (TrayWindow*)l->data;
XClearArea(server.dsp, traywin->id, 0, 0, traywin->width, traywin->height, True);
}
}