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i3bar: properly handle the _XEMBED_INFO property

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This commit is contained in:
Michael Stapelberg
2011-08-17 00:05:05 +02:00
parent 7df43989c9
commit 737cd10bdf
7 changed files with 129 additions and 18 deletions
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133
i3bar/src/xcb.c
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@ -416,11 +416,48 @@ void handle_client_message(xcb_client_message_event_t* event) {
DLOG("_NET_SYSTEM_TRAY_OPCODE received\n");
/* event->data.data32[0] is the timestamp */
uint32_t op = event->data.data32[1];
#define SYSTEM_TRAY_REQUEST_DOCK 0
#define SYSTEM_TRAY_BEGIN_MESSAGE 1
#define SYSTEM_TRAY_CANCEL_MESSAGE 2
uint32_t mask;
uint32_t values[2];
if (op == SYSTEM_TRAY_REQUEST_DOCK) {
xcb_window_t client = event->data.data32[2];
/* Listen for PropertyNotify events to get the most recent value of
* the XEMBED_MAPPED atom, also listen for UnmapNotify events */
mask = XCB_CW_EVENT_MASK;
values[0] = XCB_EVENT_MASK_PROPERTY_CHANGE |
XCB_EVENT_MASK_STRUCTURE_NOTIFY;
xcb_change_window_attributes(xcb_connection,
client,
mask,
values);
/* Request the _XEMBED_INFO property. The XEMBED specification
* (which is referred by the tray specification) says this *has* to
* be set, but VLC does not set it… */
bool map_it = true;
xcb_get_property_cookie_t xembedc;
xembedc = xcb_get_property_unchecked(xcb_connection,
0,
client,
atoms[_XEMBED_INFO],
XCB_GET_PROPERTY_TYPE_ANY,
0,
2 * 32);
xcb_get_property_reply_t *xembedr = xcb_get_property_reply(xcb_connection,
xembedc,
NULL);
if (xembedr != NULL && xembedr->length != 0) {
DLOG("xembed format = %d, len = %d\n", xembedr->format, xembedr->length);
uint32_t *xembed = xcb_get_property_value(xembedr);
DLOG("xembed version = %d\n", xembed[0]);
DLOG("xembed flags = %d\n", xembed[1]);
map_it = ((xembed[1] & XEMBED_MAPPED) == XEMBED_MAPPED);
free(xembedr);
} else {
ELOG("Window %08x violates the XEMBED protocol, _XEMBED_INFO not set\n", client);
}
DLOG("X window %08x requested docking\n", client);
i3_output *walk, *output;
SLIST_FOREACH(walk, outputs, slist) {
@ -439,25 +476,23 @@ void handle_client_message(xcb_client_message_event_t* event) {
* Tray icons may be assigned any size by the system tray, and
* should do their best to cope with any size effectively
*/
uint32_t mask = XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT;
uint32_t values[] = { font_height, font_height };
mask = XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT;
values[0] = font_height;
values[1] = font_height;
xcb_configure_window(xcb_connection,
client,
mask,
values);
/* Listen for PropertyNotify events to get the most recent value of
* the XEMBED_MAPPED atom, also listen for UnmapNotify events */
mask = XCB_CW_EVENT_MASK;
values[0] = XCB_EVENT_MASK_PROPERTY_CHANGE |
XCB_EVENT_MASK_STRUCTURE_NOTIFY;
xcb_change_window_attributes(xcb_connection,
client,
mask,
values);
xcb_map_window(xcb_connection, client);
if (map_it) {
DLOG("Mapping dock client\n");
xcb_map_window(xcb_connection, client);
} else {
DLOG("Not mapping dock client yet\n");
}
trayclient *tc = malloc(sizeof(trayclient));
tc->win = client;
tc->mapped = map_it;
TAILQ_INSERT_TAIL(output->trayclients, tc, tailq);
/* Trigger an update to copy the statusline text to the appropriate
@ -492,6 +527,68 @@ void handle_unmap_notify(xcb_unmap_notify_event_t* event) {
}
}
static void handle_property_notify(xcb_property_notify_event_t *event) {
DLOG("PropertyNotify\n");
if (event->atom == atoms[_XEMBED_INFO] &&
event->state == XCB_PROPERTY_NEW_VALUE) {
DLOG("xembed_info updated\n");
trayclient *trayclient = NULL, *walk;
i3_output *output;
SLIST_FOREACH(output, outputs, slist) {
if (!output->active)
continue;
TAILQ_FOREACH(walk, output->trayclients, tailq) {
if (walk->win != event->window)
continue;
trayclient = walk;
break;
}
if (trayclient)
break;
}
if (!trayclient) {
ELOG("PropertyNotify received for unknown window %08x\n",
event->window);
return;
}
xcb_get_property_cookie_t xembedc;
xembedc = xcb_get_property_unchecked(xcb_connection,
0,
trayclient->win,
atoms[_XEMBED_INFO],
XCB_GET_PROPERTY_TYPE_ANY,
0,
2 * 32);
xcb_get_property_reply_t *xembedr = xcb_get_property_reply(xcb_connection,
xembedc,
NULL);
if (xembedr == NULL || xembedr->length == 0)
return;
DLOG("xembed format = %d, len = %d\n", xembedr->format, xembedr->length);
uint32_t *xembed = xcb_get_property_value(xembedr);
DLOG("xembed version = %d\n", xembed[0]);
DLOG("xembed flags = %d\n", xembed[1]);
bool map_it = ((xembed[1] & XEMBED_MAPPED) == XEMBED_MAPPED);
DLOG("map-state now %d\n", map_it);
if (trayclient->mapped && !map_it) {
/* need to unmap the window */
xcb_unmap_window(xcb_connection, trayclient->win);
trayclient->mapped = map_it;
draw_bars();
} else if (!trayclient->mapped && map_it) {
/* need to map the window */
xcb_map_window(xcb_connection, trayclient->win);
trayclient->mapped = map_it;
draw_bars();
}
free(xembedr);
}
}
/*
* This function is called immediately before the main loop locks. We flush xcb
* then (and only then)
@ -531,6 +628,10 @@ void xcb_chk_cb(struct ev_loop *loop, ev_check *watcher, int revents) {
/* UnmapNotifies are received when a tray window unmaps itself */
handle_unmap_notify((xcb_unmap_notify_event_t*) event);
break;
case XCB_PROPERTY_NOTIFY:
/* PropertyNotify */
handle_property_notify((xcb_property_notify_event_t*) event);
break;
}
FREE(event);
}
@ -1126,6 +1227,8 @@ void draw_bars() {
trayclient *trayclient;
int traypx = 0;
TAILQ_FOREACH(trayclient, outputs_walk->trayclients, tailq) {
if (!trayclient->mapped)
continue;
/* We assume the tray icons are quadratic (we use the font
* *height* as *width* of the icons) because we configured them
* like this. */