i3 - improved tiling WM

Update parent urgency hint if a child is removed.

Patch status: merged

Patch by oblique

To apply this patch, use:
curl http://cr.i3wm.org/patch/178/raw.patch | git am

b/src/con.c

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@@ -1369,6 +1369,8 @@ static void con_on_remove_child(Con *con) {
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     }
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     con_force_split_parents_redraw(con);
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+    con->urgent = con_has_urgent_child(con);
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+    con_update_parents_urgency(con);
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     /* TODO: check if this container would swallow any other client and
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      * don’t close it automatically. */

b/testcases/t/113-urgent.t

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@@ -278,6 +278,32 @@ for ($type = 1; $type <= 2; $type++) {
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     is($w->{urgent}, 0, 'Urgent flag no longer set after killing the window ' .
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        'from another workspace');
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+##############################################################################
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+# Check if urgent flag can be unset if we move the window out of the container
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+##############################################################################
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+    my $tmp = fresh_workspace;
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+    cmd 'layout tabbed';
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+    my $w1 = open_window;
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+    my $w2 = open_window;
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+    sync_with_i3;
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+    cmd '[id="' . $w2->id . '"] focus';
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+    sync_with_i3;
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+    cmd 'split v';
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+    cmd 'layout stacked';
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+    my $w3 = open_window;
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+    sync_with_i3;
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+    cmd '[id="' . $w2->id . '"] focus';
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+    sync_with_i3;
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+    set_urgency($w3, 1, $type);
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+    sync_with_i3;
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+    cmd 'focus parent';
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+    sync_with_i3;
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+    cmd 'move right';
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+    cmd '[id="' . $w3->id . '"] focus';
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+    sync_with_i3;
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+    my $ws = get_ws($tmp);
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+    ok(!$ws->{urgent}, 'urgent flag not set on workspace');
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+
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     exit_gracefully($pid);
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 }
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