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Bugfix: Only set ENTER_WINDOW event mask for mapped windows (fixes focus problems)

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Fixes focus problems when switching to empty workspaces or when going in/out of
fullscreen.
This commit is contained in:
Michael Stapelberg
2011-07-04 13:41:02 +02:00
parent 23d4917e43
commit 71741d7620
3 changed files with 40 additions and 19 deletions
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47
src/x.c
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@ -18,6 +18,7 @@ xcb_window_t focused_id = XCB_NONE;
typedef struct con_state {
xcb_window_t id;
bool mapped;
bool unmap_now;
bool child_mapped;
/* For reparenting, we have a flag (need_reparent) and the X ID of the old
@ -78,9 +79,9 @@ void x_con_init(Con *con) {
mask |= XCB_CW_OVERRIDE_REDIRECT;
values[0] = 1;
/* We want to know when… */
/* see include/xcb.h for the FRAME_EVENT_MASK */
mask |= XCB_CW_EVENT_MASK;
values[1] = FRAME_EVENT_MASK;
values[1] = FRAME_EVENT_MASK & ~XCB_EVENT_MASK_ENTER_WINDOW;
Rect dims = { -15, -15, 10, 10 };
con->frame = create_window(conn, dims, XCB_WINDOW_CLASS_INPUT_OUTPUT, XCURSOR_CURSOR_POINTER, false, mask, values);
@ -612,21 +613,29 @@ void x_push_node(Con *con) {
A_WM_STATE, A_WM_STATE, 32, 2, data);
}
uint32_t values[1];
if (!state->child_mapped && con->window != NULL) {
cookie = xcb_map_window(conn, con->window->id);
/* We are interested in EnterNotifys as soon as the window is
* mapped */
values[0] = CHILD_EVENT_MASK;
xcb_change_window_attributes(conn, con->window->id, XCB_CW_EVENT_MASK, values);
DLOG("mapping child window (serial %d)\n", cookie.sequence);
/* Ignore enter_notifies which are generated when mapping */
add_ignore_event(cookie.sequence, 0);
state->child_mapped = true;
}
cookie = xcb_map_window(conn, con->frame);
DLOG("mapping container (serial %d)\n", cookie.sequence);
/* Ignore enter_notifies which are generated when mapping */
add_ignore_event(cookie.sequence, 0);
values[0] = FRAME_EVENT_MASK;
xcb_change_window_attributes(conn, con->frame, XCB_CW_EVENT_MASK, values);
DLOG("mapping container %08x (serial %d)\n", con->frame, cookie.sequence);
state->mapped = con->mapped;
}
state->unmap_now = (state->mapped != con->mapped) && !con->mapped;
if (fake_notify) {
DLOG("Sending fake configure notify\n");
fake_absolute_configure_notify(con);
@ -658,8 +667,7 @@ static void x_push_node_unmaps(Con *con) {
/* map/unmap if map state changed, also ensure that the child window
* is changed if we are mapped *and* in initial state (meaning the
* container was empty before, but now got a child) */
if ((state->mapped != con->mapped || (con->mapped && state->initial)) &&
!con->mapped) {
if (state->unmap_now) {
xcb_void_cookie_t cookie;
if (con->window != NULL) {
/* Set WM_STATE_WITHDRAWN, it seems like Java apps need it */
@ -677,8 +685,6 @@ static void x_push_node_unmaps(Con *con) {
con->ignore_unmap++;
DLOG("ignore_unmap for con %p (frame 0x%08x) now %d\n", con, con->frame, con->ignore_unmap);
}
/* Ignore enter_notifies which are generated when unmapping */
add_ignore_event(cookie.sequence, 0);
state->mapped = con->mapped;
}
@ -731,8 +737,10 @@ void x_push_changes(Con *con) {
state->initial = false;
}
//DLOG("Re-enabling EnterNotify\n");
values[0] = FRAME_EVENT_MASK;
CIRCLEQ_FOREACH_REVERSE(state, &state_head, state) {
values[0] = FRAME_EVENT_MASK;
if (!state->mapped)
values[0] &= ~XCB_EVENT_MASK_ENTER_WINDOW;
xcb_change_window_attributes(conn, state->id, XCB_CW_EVENT_MASK, values);
}
//DLOG("Done, EnterNotify re-enabled\n");
@ -785,6 +793,21 @@ void x_push_changes(Con *con) {
xcb_flush(conn);
DLOG("\n\n ENDING CHANGES\n\n");
/* Disable EnterWindow events for windows which will be unmapped in
* x_push_node_unmaps() now. Unmapping windows happens when switching
* workspaces. We want to avoid getting EnterNotifies during that phase
* because they would screw up our focus. One of these cases is having a
* stack with two windows. If the first window is focused and gets
* unmapped, the second one appears under the cursor and therefore gets an
* EnterNotify event. */
values[0] = FRAME_EVENT_MASK & ~XCB_EVENT_MASK_ENTER_WINDOW;
CIRCLEQ_FOREACH_REVERSE(state, &state_head, state) {
if (!state->unmap_now)
continue;
xcb_change_window_attributes(conn, state->id, XCB_CW_EVENT_MASK, values);
}
/* Push all pending unmaps */
x_push_node_unmaps(con);
/* save the current stack as old stack */