Previously, using a command like
[con_id=foo] kill
would kill the currently focused window because while an error for
not being able to parse the con_id was logged, no further action
was taken, which caused the criterion to be ignored. In this case,
the fallback behavior of using the focused window took over.
For con_id, id and window_type we now reject incorrect values with
an error and abort the command.
fixes#2091
With this patch, we support the special value "0" for _NET_WM_USER_TIME
on a window upon managing it, which indicates that the window shall not
be focused.
fixes#2064
This patch introduces the possibility to specify the tray_output directive
multiple times. All values will be used by i3bar, in the order they are
given.
This way, a single bar configuration can be used for several machines with
internal output names "eDP1" and "LVDS-0" by specifying tray_output for both.
Any external output (e.g., "DP-0") will still not receive the tray. The same
effect can be achieved by using "primary", but forces the user to couple the
tray display to the primary output which may not be desirable behavior.
relates to #555
This patch extends the previously introduced flag --no-auto-back-and-forth
to also apply to
move window to workspace <name>
move window to workspace number <number>
relates to #2028
Suppose a horizontally oriented workspace has two windows open. Issuing "split h" on
the right window creates a nested horizontal container. If we now resize in "width"
direction, the resize doesn't work because it will only operate on the current parent,
which is a container with only one child, so the resize command exits.
This is unexpected behavior from a user point of view. Hence, with this patch, we
ensure that we don't just go up the tree until we find a parent with the correct
orientation, but also keep going if that parent has only a single child.
fixes#2015
This patch introduces the --no-auto-back-and-forth flag to both of
workspace --no-auto-back-and-forth <name>
workspace --no-auto-back-and-forth number <number>
This flag will only have an effect if the back_and_forth feature is
enabled. If passed, the feature will be ignored for this particular
call only.
fixes#2028
This allows matching with
[con_id=__focused__] unmark
for commands that do not default to operating on the focused window
if no criteria have been specified (such as unmark).
relates to #2014
In order to keep compatibility to before allowing multiple marks on a window,
we introduce a flag "--add" that must be set to put more than one mark on a
window. The default, which is also available as "--replace", keeps the old
behavior of overwriting a mark when setting a new one.
fixes#2014
This patch allows multiple marks to be set on a single window. The restriction that a mark may
only be on one window at a time is still upheld as this is necessary for commands like
"move window to mark" to make sense.
relates to #2014
See the issue #1798 (http://github.com/i3/i3/issues/1798).
+workspace_next+ as-is cycles through either numbered or named workspaces,
but when it reaches the last numbered/named workspace, it only looks for
named workspaces. This commit changes it: look for named workspaces after
exhausting numbered ones, but also for numbered ones after exhausting
named ones.
Also add a test case 528-workspace-next-prev.t (numbered workspaces and named
workspaces on 2 outputs) for testing this.
This introduces the flag "--pango" on the mode config directive to
explicitly enable pango markup for mode names. Not setting this will
cause the mode name to be rendered as is.
This fixes a regression in 4.11 where mode names containing characters
such as '<' would break user's configs as they didn't escape these
characters.
fixes#1992
With this patch, the no_focus directive will be ignored if the
to-be-opened window is the first on its workspace as there's no
reason the user would not want to focus it in this case.
This improves usability when, for example, using a tabbed
workspace_layout.
fixes#1987
This commit also reworks the way focusing sticky windows is prevented by not focusing them temporarily at all, but preventing the focus in the first place.
If no other window is available on the active workspace, we now select the EWMH support window (used to indicate that an EWMH-compliant window manager is preent) as the focus window rather than the root window. The NET_WM_ACTIVE window will still be set to XCB_WINDOW_NONE to pretend that no window is actually focused.
This fixes the issue that when using the root window, a fallback mechanism in X11 takes effect which routes keyboard input to the window under the cursor, independent of whether that window has the input focus. Using the EWMH window instead, we can avoid this behavior. We cannot simply set it to XCB_WINDOW_NONE as this would discard all keyboard events, breaking keybindings.
fixes#1378
1. Allow to use the line continuation, which is indicated by \ before the new line character, in config files.
2. Add a new testcase "247-config-line-continuation.t" for
a). testing line continuation
b). making sure string escaping still works
c). testing line continuations within a string
b). testing line continuations with too many lines
If the match expression is a plain number (e.g., '99'), the number of a workspace will be compared strictly. Otherwise, the match expression is taken as a regular expression and compared against the workspace's name.
This allows all of the following:
for_window [workspace=5] ...
for_window [workspace="5:foo"] ...
for_window [workspace="foo"] ...
fixes#1769
The comment immediately following implied that this was the intended
behaviour. Not doing so means that compound commands that both move a
window to a new workspace as well as do something that depends on the
workspace's geometry (e.g. 'move position center' or 'floating enable'
on a tiled window) would use the workspace's calloc'd 0x0+0x0 geometry.
When InputHint is not in WM_HINTS (i.e., the flag is not set), treat the window
as if the InputHint was set (the default behavior). This means that i3 will
focus the window when it becomes managed.
fixes#1676
* Implement criterion specs just like it is done in the spec for the config
* Declare variables in test case early so the 'my' keyword can be dropped in the actual test cases
Outputs may disappear momentarily and come back later.
To prevent i3 from exit when no output is available momentarily, add a timeout delay_exit_on_zero_displays.
Introduce a config directive "show_marks [yes|no]" to en- or disable drawing marks on window decorations.
To not change the look & feel of existing configurations, the default is "no".
When a window receives a _NET_ACTIVE_WINDOW message, it can steal the focus. This may not be preferable to all users.
With this directive, the user can choose from one of the following:
1) 'smart' - focus the container if its workspace is visible, otherwise set the urgency flag (default)
2) 'urgent' - always set the urgency flag, do not steal focus
3) 'focus' - always switch focus, never set the urgency hint
4) 'none' - ignore the request entirely (do not switch focus, nor set the urgency hint)
fixes#1426
Handle changes to the property _NET_WM_STRUT_PARTIAL by reallocating
screen space in the dock area when the dock client requests a new
position.
This will allow changes to the bar config directive `position` to be
effective on the `reload` command.
fixes#1294
This introduces a "separator_symbol" property for the i3bar configuration.
If set, the specified string will be used as a separator instead of a vertical line. Since it is an optional configuration, complete backwards compatibility is given.
fixes#1472
This reverts commit cbd51ce664.
If you’ve started using this feature, I’m very sorry, but I think it’s
better to revert it entirely, as it will only cause more problems in the
future as more and more people upgrade and get bitten by this if we
didn’t revert it…
fixes#1536
Add the `--whole-window` switch for mouse bindings. This switch controls
what part of the container the pointer must be over to trigger a mouse
binding. The default is to only trigger mouse bindings over the
titlebars. With this switch, a mouse binding will be triggered over the
main part of the window as well.
This is a breaking change to the previous behavior, which would trigger
a mouse binding with a modifier over any part of the window.
fixes#1429
Send the affected workspace in the "current" property for each workspace
event for any type of workspace event that affects a particular
workspace.
fixes#1411
Rather than just toggling the fullscreen modes, allow to set them
directly with:
fullscreen enable|toggle [global]
fullscreen disable
For compatibility, retain the previous command and its toggling behavior:
fullscreen [global]
fixes#1120
Copy the binding struct before running it and use this copy to emit the
binding event.
This fixes a crash when the command `reload` is used in a binding when
the binding event is emitted.
The binding event will be triggered when a binding is run as a result of
some a user action. The binding event has the following properties:
change: (str) Currently this will only be "run" but may be expanded in
the future. Included for consistency with other events.
binding: (map) the serialized binding
The "binding" member will have these properties:
input_type: (str) either "keyboard" or "mouse"
input_code: (int) the xcb keycode of the keyboard binding if it was
provided or the mouse button if it is a mouse binding.
symbol: (str) the string representation of the input code
command: (str) the bound command
mods: (list of str) a list of the modifiers that were pressed as string
symbols
fixes#1210
Replace the XDummy script with Xephyr. This is done because of some
changes in the Xorg server that make XDummy difficult to use.
Rename library internal variables and function names to replace "xdummy"
with "xserver" to show this change (except for renaming the package and
lib file for better git history).
Rename the switch `--keep-xdummy-output` to `--keep-xserver-output`.
This switch should now be rarely used because Xephyr requires less set
up.
Replace "xdummy" with "xephyr" in comments and utility help
information. Update docs to show the new dependency.
fixes#1367
When a named workspace (i.e., a workspace that has a name that does not
begin with text that can be parsed as an integer greater than or equal
to zero) is represented by the ipc as a workspace json object such as
can be queried with `i3-msg -t get_workspaces`, set the num property to
-1 instead of json null.
This is for convenience of ipc consumers using type-constrained
languages such as C which have difficulty cleanly expressing nullable
integers.
fixes#1368
We're going to call parse_configuration() very early if -C is given on
the command line. Instead of the previous "only_check_config", which has
been a global variable, we now simply pass use_nagbar as false if we're
just validating.
This causes the whole parsing to run without X and of course without
starting nagbar and displaying the errors to standard out/error instead.
The return code of parse_configuration() is now a boolean which
represents whether an error occured during parsing and the programs exit
code is returned accordingly.
Although the config parser still has a lot of side-effects, we now can
parse without the need to have an XCB connection. A nicer implementation
would be to just set the new font and load it just after we're done
parsing, but to ensure we don't break functionality we just load a dummy
FONT_TYPE_NONE if XCB isn't available. The main reason for going this
route is that it's a bit difficult to test fonts in a distribution
agnostic way without bundling fonts with i3 (or Xdummy to be more
exact).
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
Raise a window when cycling focus between floating windows with `focus
[direction]` command so that newly focused windows are rendered on top
of other windows.
This is done by placing the window last in the floating nodes of the
parent and reordering the stack so the relative order is preserved.
fixes#1322
http://tronche.com/gui/x/icccm/sec-4.html
> The WM_CLASS property (of type STRING without control characters)
> contains two consecutive null-terminated strings. These specify the
> Instance and Class names to be used by both the client and the window
> manager for looking up resources for the application or as identifying
> information.
i3 processes changes to WM_CLASS by updating the cached property and
running assignments. This allows the property to be used in criteria
selection.
fixes#1052
When a window becomes managed, explicitly set the current border width
to the default instead of relying on the default value of -1 to apply
the correct value.
Now that there are two different kinds of default borders, a border
width value of -1 is ambiguous. This can lead to different border widths
effectively being applied when the container changes from tiling to
floating, which is surprising behavior.
This commit extends behavior introduced in this commit to normal
borders:
7afe9cc78b
Explicitly set current border width when BS_PIXEL
fixes#1304
Users can specify a command to run when a button was pressed on i3bar to
override the default behavior. Currently only the mouse wheel buttons
are supported. This is useful for disabling the scroll wheel action or
running scripts that implement custom behavior for these buttons.
Example:
bar {
wheel_up_cmd nop
wheel_down_cmd exec ~/.i3/scripts/custom_wheel_down
}
fixes#1104
Fixes a bug where a normal floating default border is not applied when
the default tiling border is set to a pixel value.
This bug was introduced in this commit:
43b447855d
Consider motif border for floating geometry
Fixes a comment that claimed default floating border could override
motif hints, which was never the case.
fixes#1305
Test that the EWMH specified property _NET_DESKTOP_VIEWPORT is updated
properly on the root window. We interpret this as a list of x/y
coordinate pairs for the upper left corner of the respective outputs of
the workspaces.
This test is for this commit:
feature: implement ewmh desktop viewport property
4205973135
I have seen this message once or twice, but since the actual error
message was not included, I cannot definitely say what’s going on.
I think it might be a race condition where the file with the specified
tmpname() already exists, but let’s be sure before we attempt to fix it.
Test that the EWMH specified property _NET_DESKTOP_NAMES is updated
properly on the root window. We interpret this as a list of the open
workspace names.
This test is for this commit:
Implement EWMH desktop names
a9c094b731
When a window becomes managed, if the config specifies a pixel border
style, explicitly set the current border width so it does not change
when the container changes from tiling to floating.
fixes#1266
http://tronche.com/gui/x/icccm/sec-4.html#s-4.1.4
> IconicState - The client's top-level window is iconic (whatever that
> means for this window manager). The client can assume that its
> top-level window is not viewable, its icon_window (if any) will be
> viewable and, failing that, its icon_pixmap (if any) or its
> WM_ICON_NAME will be displayed.
For these requests, we just close the window.
fixes#1279
A window may become unmapped on manage when an assignment command unmaps
the window, such as moving it to the scratchpad or killing it.
This can cause i3 focus to be an unmapped window and different than X
focus which can lead to complications
fixes#1283
If a `workspace {N}` or `move to workspace {N}` command is given with N
as a plain number, the workspace of this number is selected for the
context of the command if one exists and there is no workspace with a
name that exactly matches N.
A container selected with criteria should be moved with the `move
[direction]` command, instead of this command always acting on the
focused container.
http://tronche.com/gui/x/icccm/sec-4.html#s-4.1.7
> Clients using the Globally Active model can only use a SetInputFocus request
> to acquire the input focus when they do not already have it on receipt of one
> of the following events:
> * ButtonPress
> * ButtonRelease
> * Passive-grabbed KeyPress
> * Passive-grabbed KeyRelease
Since managing a window happens on a MapNotify (which is absent from this
list), the window cannot accept input focus, so we should not try to focus
the window at all.
Fixes an issue with xfce4-notifyd which (correctly) declines focus when
we send WM_TAKE_FOCUS, which puts i3 in a state where i3 focus and X
focus are different when a notification appears.
_NET_ACTIVE_WINDOW:
> The window ID of the currently active window or None if no window has
> the focus.
This fixes a bug that would not update _NET_ACTIVE_WINDOW when focus
changed to an i3 container without a window such as a branch or
workspace content container.
This patch adds a new configuration option "mouse_warping [output|none]".
When mouse warping is disabled, mouse cursor does not jump to middle of current
screen when changing workspaces between multiple outputs. This introduces a
"special" cursor state, where focus is in one window and cursor on another.
Useful for eg. scrolling a web page with mouse wheel while typing into another
window on keyboard.
Workspace assignments with bare numbers assign all workspaces with that
number to the specified output.
Workspace assignment by number is overridden by workspace assignment by
name.
Test 517 was sometimes failing because the command to reset the test
generates a focus event which was not being properly ignored.
Now the correct event should always be tested.
Floating windows already had their own border style, but the width was
the same for all windows.
The configuration directives 'new_window' and 'new_float' can now be
used simultaneously to have different border widths for floating and
tiled windows.
fixes#1244
Implement the configuration option within the bar config directive for
custom workspace numbers with the directive `strip_workspace_numbers
yes`.
This directive strips the workspace name of the number prefix and
delimiter. When the workspace name consists only of the number, it will
default to show the number.
For example:
* "2:5" -> "5"
* "4:$" -> "$"
* "8" -> "8"
This allows customization of i3bar for alternate ordering of workspaces
which has a legitimate use for alternate keyboard layouts such as
Dvorak.
fixes#1131
Allow client requests of type _NET_ACTIVE_WINDOW to switch workspaces if
they indicate they are a pager. Otherwise, set the urgency hint on that
con to indicate that something happened.
This allows task switchers like skippy-xd to work properly.
http://standards.freedesktop.org/wm-spec/latest/ar01s03.html#idm140251368127856
http://standards.freedesktop.org/wm-spec/latest/ar01s03.html#idm140251368149456
The _NET_CLIENT_LIST property of the root window:
> These arrays contain all X Windows managed by the Window Manager.
Dock clients are not managed windows, so they should not be included in
_NET_CLIENT_LIST or _NET_CLIENT_LIST_STACKING.
The fullscreen_mode event is a window with the "change" property set to
"fullscreen_mode". This event should be emitted whenever a window enters
or exits fullscreen mode.
This event can be used to turn off dpms off when a window is fullscreen
or display the fullscreen container name in the status line for
instance.
When checking the window type for a resize command, first check to see
if the window property is null before checking whether or not it is a
dock window. The window may be null in the case it is a branch
container.
fixes#1220
If input focus is set by the window manager, it is not necessary to send
WM_TAKE_FOCUS because it has already taken focus.
http://tronche.com/gui/x/icccm/sec-4.html#s-4.1.7
> The goal is to support window managers that want to assign the input
> focus to a top-level window in such a way that the top-level window
> either can assign it to one of its subwindows or can decline the offer
> of the focus. For example, a clock or a text editor with no currently
> open frames might not want to take focus even though the window
> manager generally believes that clients should take the input focus
> after being deiconified or raised.
Both setting input focus and sending WM_TAKE_FOCUS is effectively
setting focus on the window twice which is certainly against the spirit
of the spec, if not the letter.
fixes#1167
Add and update the _NET_CLIENT_LIST property on the root window to
better comply with ewmh standards.
Information on this property can be found here:
http://standards.freedesktop.org/wm-spec/latest/ar01s03.html
> These arrays contain all X Windows managed by the Window Manager.
> _NET_CLIENT_LIST has initial mapping order, starting with the oldest window.
fixes#1099
BAIL_OUT produces a friendlier message explaining why the tests cannot
continue on the command line. `die` produces a cryptic message that some
test failed for some reason.
cmd_resize does not implement a method to resize dock clients.
A command like `[instance=".*"] resize grow width 160 px or 16 ppt`
when a dock client matched would crash i3.
fixes#1201
This patch fixes ticket #1168 to extend the window IPC event mechanism
to send IPC events for window focus and title changes. The newly added
window events use the same format as the already established "new"
event.
Specifically this patch:
* Moves the ipc_send_window_event() function from src/manage.c into
src/ipc.c and adds an argument for the change property of the event
* Updates src/manage.c to use the new function signature. To ensure
that the "new" event does not send the same event data as the
"focus" event, setting focus now happens after the "new" event
has been sent
* Adds IPC focus event notification to src/x.c. To workaround a problem
during window close when accessing the window name, a function has been
added to query whether a window is actually attached to its parent. To
avoid obsolete focus notification, a new field has been added to keep
track of the focus without any interference by the click handling
* Adds IPC title event notification to src/handlers.c. To avoid
obsolete title notification, a function has been added to determine
whether a window title has actually changed
* Updates the IPC documentation to include the new events
* Updates testcases/t/205-ipc-windows.t to include the "focus" event
in order to ensure the correct event sequence
* Adds two new unit tests, b/testcases/t/219-ipc-window-focus.t and
b/testcases/t/220-ipc-window-title.t to ensure proper "focus" and
"title" events
To be honest, I’m not entirely sure where the race condition originates
from, but when making sure that there are no pending events
(which is what sync_with_i3 accomplishes) before warping the pointer, we
have less flaky testsuite runs.
closes#1189
This hopefully increases the reliability of the test. Empty containers
created by “open” sometimes get spurious UnmapNotify events, and in at
least one run, this test failed because of such an event.
Calls ewmh_update_current_desktop on startup to set the
_NET_CURRENT_DESKTOP property. Without this change the property only
gets set after the workspaces have been manipulated. Also exclude
hidden workspaces (i.e. those starting with "__" from the workspace
index.
Adds tests for startup and workspace switching.
Make sure the command `move <direction>` properly sends the workspace
focus ipc event required for i3bar to be properly updated and redrawn.
Make `ipc_send_workspace_focus_event publicly available from ipc.h for
more flexible event sending.
Change the behavior of movement into a branch with respect to the
position the moving con will be placed within the branch when the
movement is complete.
The correct position is determined by the direction of movement or the
position of the focused-inactive container within the branch.
If the direction of movement is the same as the orientation of the
branch container, append or prepend the container to the branch in the
obvious way. If the movement is to the right or downward, insert the
moving container in the first position (i.e., the leftmost or top
position resp.) If the movement is to the left or upward, insert the
moving container in the last position (i.e., the rightmost or bottom
position resp.)
If the direction of movement is different from the orientation of the
branch container, insert the container into the branch after the
focused-inactive container.
fixes#1060
Split test 514's assertion into three assertions to make it more
explicit what is being tested, and why a run might fail.
Move critical test code out of the event handler to clarify flow and
allow a query of the actual current workspace to use in assertions.
Works around an issue which caused this test to fail spurriously because
of pointer-related quirks in the i3 test suite which would sometimes
cause i3 to open on workspace 2 (However, the test is now agnostic to
the initial workspace or output).
When 'move <direction>' is issued in the context of a container that
borders a workspace, and there is no suitable place within this
workspace for which this container can move, move the container to the
closest output in this direction instead.
When focusing/moving to outputs, the method of getting the correct
output for a given container fails if the container in question is
floating and only partially mapped on an output screen. This patch
introduces a fail-safe retrieval of the output for any container.
When i3 begins to manage a window, if the window opens on a workspace
that is not visible, the urgency hint on the newly managed window will
be set.
fixes#1088
i3 would accept an invalid resize command like 'resize shrink width 10
px or' without specifying the ppt value, and then crash. This patch
fixes the parser specification.
i3 current behavior hides the binding mode indicator when
workspace buttons are disabled.
This patch adds a new configuration for i3bar called
'binding_mode_indicator' which acts like the workspace_buttons.
It is now possible to configure i3bar to hide the
workspace buttons and keep showing the binding mode indicator.
This should make the hide workspace buttons configuration
more convenient for those who are heavily using binding
modes.
Default value for binding_mode_indicator is true.
If the currently focused window is in fullscreen mode, and a new window
is opened with WM_STATE_FULLSCREEN set, the new window now becomes the
new fullscreen window and gains focus.
Add debuglog command that takes toggle|on|off. Add get_debug_logging()
to be able to toggle. Make t/187-commands-parser.t expect 'debuglog'.
Document the debuglog command in userguide.
Add shmlog command that takes <size>|toggle|on|off. Separate logbuffer
management into open_logbuffer() and close_logbuffer(). Make
t/187-commands-parser.t expect 'shmlog'. Add update_shmlog_atom() to
update the SHMLOG_PATH. Document the shmlog command in userguide.
The hidden_state and mode of each i3bar instance can now be controlled from within i3.
Therefore, two new i3 command were introduced:
_
bar hidden_state show|hide|toggle [<bar_id>]
show: always show the bar
hide: normal hide mode
toggle: toggle between show and hide (individually for each bar)
_
bar mode dock|hide|invisible|toggle [<bar_id>]
hide,dock: like before
invisible: always keep the bar hidden
toggle: toggle between dock and hide (individually for each bar)
This patch introduces a hidden_state ("hidden_state hide|show") in the
barconfig, which indicates the current hidden_state of each i3bar
instance. It only affects the bar when in hide mode. Additionally, a new
invisible mode was introduced. In order to change the hidden_state or
mode of the bar from i3, a barconfig-update event was introduced, for
which a bar can subscribe and the bar then gets notified about the
currently set hidden_state and mode in its barconfig.
For convenience, an id field ("id <bar_id>") was added to the barconfig, where one can
set the desired id for the corresponding bar. If the id is not specified, i3 will
deterministically choose an id; otherwise, with the previous random approach for finding
a new id, which is actually not shared with i3bar, as it would determine its id on
startup, the event-subscription would be destroyed on reload. Still, this issue remains
when manually changing the bar_id in the config and then reloading.
fixes#833, #651
When moving a fullscreen window to scratchpad with 'move scratchpad', the
focused window would stay fullscreen.
Also, when having a container in fullscreen mode and then focusing a child of
this container and moving it to scratchpad, it would enable fullscreen for
the child window.
This patch fixes both problems, so the scratchpad window is always floating.
_NET_WM_STATE_DEMANDS_ATTENTION indicates that some action in or with
the window happened. It's a weaker hint than urgency flag of WM_HINTS,
but some applications and almost all Qt applications use it instead of
WM_HINTS' urgency flag (one example is Skype).
Added new event id (I3_IPC_EVENT_WINDOW) so that a an IPC client can
subscribe to events on windows. Added a basic window event that gets
triggered when a window gets successfully reparented. This new event
also dumps the container data, so that IPC clients can get the initial
window name. IPC clients wishing to see window events should subscribe
to 'window'.
This change ensures a scratchpad window is still centered on the screen
if it has first been shown on another screen of a different
resolution. Moving or resizing the scratchpad manually disables this
behavior.
fixes#809
This makes the moving behavior more consistent. If you want to focus the
workspace you are moving to, just chain the keybinding in your config
file:
bindsym $mod+Shift+1 move workspace 1; workspace 1
It looks like the code which was removed with this commit was not
necessary anyways since con_move_to_workspace() by now checks on its own
whether it moves to the scratchpad.
fixes#913
The corresponding command is 'rename workspace to <name>'. As a side-effect
this fixes the command 'rename workspace 1 to to'.
Signed-off-by: Michael Walle <michael@walle.cc>
Focusing child from a workspace should now skip over the floating con and
go directly to its child. Focusing parent from that grandchild should leave
the workspace focused again.
As the workspace might be reached via recursion (e.g. moving from the edge
of a fullscreen split container), it's necessary to check for a fullscreen
container whenever a workspace is reached.
If a window with _NET_STARTUP_ID set is moved to another workspace, it
will delete any associated startup sequence immediately. This will also
occur if a window has a leader with _NET_STARTUP_ID set, if the leader
has no container (never been mapped).
A startup sequence may also be deleted if it's matched by
startup_workspace_for_window() and its 30-second timeout has elapsed.
This avoids a case where a fullscreen container could be moved onto a
workspace that already had its own fullscreen container, leading to
two fullscreen containers on top of each other.
Ingo Bürk