Both sway_output and sway_layer_shell listen to wlr's output destroy event,
but sway_layer_shell needs to access into sway_output's data strucure and needs
to be destroyed first.
Resolve this by making sway_layer_shell listen to a new event that happens at
start of sway_output's destroy handler
Fixes this kind of use-after-free:
==1795==ERROR: AddressSanitizer: heap-use-after-free on address 0x612000191ef0 at pc 0x00000048c388 bp 0x7ffe308f0410 sp 0x7ffe308f0400
WRITE of size 8 at 0x612000191ef0 thread T0
#0 0x48c387 in wl_list_remove ../common/list.c:157
#1 0x42196b in handle_destroy ../sway/desktop/layer_shell.c:275
#2 0x7f55cc2549fa in wlr_signal_emit_safe ../util/signal.c:29
#3 0x7f55cc22cf68 in layer_surface_destroy ../types/wlr_layer_shell.c:182
#4 0x7f55cc22d084 in layer_surface_resource_destroy ../types/wlr_layer_shell.c:196
#5 0x7f55cc4ca025 in destroy_resource src/wayland-server.c:688
#6 0x7f55cc4ca091 in wl_resource_destroy src/wayland-server.c:705
#7 0x7f55cc22c3a2 in resource_handle_destroy ../types/wlr_layer_shell.c:18
#8 0x7f55c8ef103d in ffi_call_unix64 (/lib64/libffi.so.6+0x603d)
#9 0x7f55c8ef09fe in ffi_call (/lib64/libffi.so.6+0x59fe)
#10 0x7f55cc4cdf2c (/lib64/libwayland-server.so.0+0xbf2c)
#11 0x7f55cc4ca3de in wl_client_connection_data src/wayland-server.c:420
#12 0x7f55cc4cbf01 in wl_event_loop_dispatch src/event-loop.c:641
#13 0x7f55cc4ca601 in wl_display_run src/wayland-server.c:1260
#14 0x40bb1e in server_run ../sway/server.c:141
#15 0x40ab2f in main ../sway/main.c:432
#16 0x7f55cb97318a in __libc_start_main ../csu/libc-start.c:308
#17 0x408d29 in _start (/opt/wayland/bin/sway+0x408d29)
0x612000191ef0 is located 48 bytes inside of 312-byte region [0x612000191ec0,0x612000191ff8)
freed by thread T0 here:
#0 0x7f55ce3bb880 in __interceptor_free (/lib64/libasan.so.5+0xee880)
#1 0x42f1db in handle_destroy ../sway/desktop/output.c:1275
#2 0x7f55cc2549fa in wlr_signal_emit_safe ../util/signal.c:29
#3 0x7f55cc23b4c2 in wlr_output_destroy ../types/wlr_output.c:284
#4 0x7f55cc1ddc20 in xdg_toplevel_handle_close ../backend/wayland/output.c:235
#5 0x7f55c8ef103d in ffi_call_unix64 (/lib64/libffi.so.6+0x603d)
previously allocated by thread T0 here:
#0 0x7f55ce3bbe50 in calloc (/lib64/libasan.so.5+0xeee50)
#1 0x42f401 in handle_new_output ../sway/desktop/output.c:1308
#2 0x7f55cc2549fa in wlr_signal_emit_safe ../util/signal.c:29
#3 0x7f55cc1d6cbf in new_output_reemit ../backend/multi/backend.c:113
#4 0x7f55cc2549fa in wlr_signal_emit_safe ../util/signal.c:29
#5 0x7f55cc1deac7 in wlr_wl_output_create ../backend/wayland/output.c:327
#6 0x7f55cc1db353 in backend_start ../backend/wayland/backend.c:55
#7 0x7f55cc1bad55 in wlr_backend_start ../backend/backend.c:35
#8 0x7f55cc1d67a0 in multi_backend_start ../backend/multi/backend.c:24
#9 0x7f55cc1bad55 in wlr_backend_start ../backend/backend.c:35
#10 0x40ba8a in server_run ../sway/server.c:136
#11 0x40ab2f in main ../sway/main.c:432
#12 0x7f55cb97318a in __libc_start_main ../csu/libc-start.c:308
Setting it to "rerender" will always re-render everything
regardless of the damaged region. Setting it to "highlight" will
clear the screen and render only damaged regions.
* Attach sticky containers to new workspaces when switching
* Fire the close event *before* we start destroying the workspace to
prevent a crash
Because the sticky container now follows the visible workspace, this
simplifies the rendering and container_at logic.
This commit changes how the left and right indents are calculated for the
title bottom pixel bar, so that it is displayed properly in case the left or
right border is hidden.
