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Merge pull request #1856 from Airblader/feature-1455

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EWMH Sticky windows
This commit is contained in:
Michael Stapelberg 2015-09-13 13:47:14 -07:00
commit e10b88fb81
22 changed files with 315 additions and 24 deletions
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21
docs/userguide
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@ -1834,6 +1834,27 @@ bindsym $mod+c move absolute position center
bindsym $mod+m move position mouse
-------------------------------------------------------
=== Sticky floating windows
If you want a window to stick to the glass, i.e., have it stay on screen even
if you switch to another workspace, you can use the +sticky+ command. For
example, this can be useful for notepads, a media player or a video chat
window.
Note that while any window can be made sticky through this command, it will
only take effect if the window is floating.
*Syntax*:
----------------------------
sticky enable|disable|toggle
----------------------------
*Examples*:
------------------------------------------------------
# make a terminal sticky that was started as a notepad
for_window [instance=notepad] sticky enable
------------------------------------------------------
=== Changing (named) workspaces/moving to workspaces
To change to a specific workspace, use the +workspace+ command, followed by the

1
include/atoms.xmacro
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@ -3,6 +3,7 @@ xmacro(_NET_SUPPORTING_WM_CHECK)
xmacro(_NET_WM_NAME)
xmacro(_NET_WM_VISIBLE_NAME)
xmacro(_NET_WM_MOVERESIZE)
xmacro(_NET_WM_STATE_STICKY)
xmacro(_NET_WM_STATE_FULLSCREEN)
xmacro(_NET_WM_STATE_DEMANDS_ATTENTION)
xmacro(_NET_WM_STATE_MODAL)

6
include/commands.h
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@ -204,6 +204,12 @@ void cmd_focus(I3_CMD);
*/
void cmd_fullscreen(I3_CMD, char *action, char *fullscreen_mode);
/**
* Implementation of 'sticky enable|disable|toggle'.
*
*/
void cmd_sticky(I3_CMD, char *action);
/**
* Implementation of 'move <direction> [<pixels> [px]]'.
*

12
include/con.h
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@ -55,6 +55,12 @@ bool con_is_split(Con *con);
*/
bool con_is_hidden(Con *con);
/**
* Returns whether the container or any of its children is sticky.
*
*/
bool con_is_sticky(Con *con);
/**
* Returns true if this node has regular or floating children.
*
@ -212,10 +218,14 @@ void con_disable_fullscreen(Con *con);
* The dont_warp flag disables pointer warping and will be set when this
* function is called while dragging a floating window.
*
* If ignore_focus is set, the container will be moved without modifying focus
* at all.
*
* TODO: is there a better place for this function?
*
*/
void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates, bool dont_warp);
void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates,
bool dont_warp, bool ignore_focus);
/**
* Moves the given container to the given mark.

6
include/data.h
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@ -603,6 +603,12 @@ struct Con {
TAILQ_HEAD(swallow_head, Match) swallow_head;
fullscreen_mode_t fullscreen_mode;
/* Whether this window should stick to the glass. This corresponds to
* the _NET_WM_STATE_STICKY atom and will only be respected if the
* window is floating. */
bool sticky;
/* layout is the layout of this container: one of split[v|h], stacked or
* tabbed. Special containers in the tree (above workspaces) have special
* layouts like dockarea or output.

6
include/ewmh.h
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@ -68,6 +68,12 @@ void ewmh_update_client_list(xcb_window_t *list, int num_windows);
*/
void ewmh_update_client_list_stacking(xcb_window_t *stack, int num_windows);
/**
* Set or remove _NET_WM_STATE_STICKY on the window.
*
*/
void ewmh_update_sticky(xcb_window_t window, bool sticky);
/**
* Set up the EWMH hints on the root window.
*

7
include/output.h
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@ -21,3 +21,10 @@ Con *output_get_content(Con *output);
*
*/
Output *get_output_from_string(Output *current_output, const char *output_str);
/**
* Iterates over all outputs and pushes sticky windows to the currently visible
* workspace on that output.
*
*/
void output_push_sticky_windows(void);

6
parser-specs/commands.spec
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@ -29,6 +29,7 @@ state INITIAL:
'kill' -> KILL
'open' -> call cmd_open()
'fullscreen' -> FULLSCREEN
'sticky' -> STICKY
'split' -> SPLIT
'floating' -> FLOATING
'mark' -> MARK
@ -183,6 +184,11 @@ state FULLSCREEN_COMPAT:
end
-> call cmd_fullscreen("toggle", "output")
# sticky enable|disable|toggle
state STICKY:
action = 'enable', 'disable', 'toggle'
-> call cmd_sticky($action)
# split v|h|vertical|horizontal
state SPLIT:
direction = 'horizontal', 'vertical', 'v', 'h'

46
src/commands.c
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@ -461,7 +461,7 @@ void cmd_move_con_to_workspace(I3_CMD, char *which) {
TAILQ_FOREACH(current, &owindows, owindows) {
DLOG("matching: %p / %s\n", current->con, current->con->name);
con_move_to_workspace(current->con, ws, true, false);
con_move_to_workspace(current->con, ws, true, false, false);
}
cmd_output->needs_tree_render = true;
@ -488,7 +488,7 @@ void cmd_move_con_to_workspace_back_and_forth(I3_CMD) {
TAILQ_FOREACH(current, &owindows, owindows) {
DLOG("matching: %p / %s\n", current->con, current->con->name);
con_move_to_workspace(current->con, ws, true, false);
con_move_to_workspace(current->con, ws, true, false, false);
}
cmd_output->needs_tree_render = true;
@ -532,7 +532,7 @@ void cmd_move_con_to_workspace_name(I3_CMD, char *name) {
TAILQ_FOREACH(current, &owindows, owindows) {
DLOG("matching: %p / %s\n", current->con, current->con->name);
con_move_to_workspace(current->con, ws, true, false);
con_move_to_workspace(current->con, ws, true, false, false);
}
cmd_output->needs_tree_render = true;
@ -583,7 +583,7 @@ void cmd_move_con_to_workspace_number(I3_CMD, char *which) {
TAILQ_FOREACH(current, &owindows, owindows) {
DLOG("matching: %p / %s\n", current->con, current->con->name);
con_move_to_workspace(current->con, workspace, true, false);
con_move_to_workspace(current->con, workspace, true, false, false);
}
cmd_output->needs_tree_render = true;
@ -1223,7 +1223,7 @@ void cmd_move_con_to_output(I3_CMD, char *name) {
TAILQ_FOREACH(current, &owindows, owindows) {
DLOG("matching: %p / %s\n", current->con, current->con->name);
con_move_to_workspace(current->con, ws, true, false);
con_move_to_workspace(current->con, ws, true, false, false);
}
cmd_output->needs_tree_render = true;
@ -1569,6 +1569,42 @@ void cmd_fullscreen(I3_CMD, char *action, char *fullscreen_mode) {
ysuccess(true);
}
/*
* Implementation of 'sticky enable|disable|toggle'.
*
*/
void cmd_sticky(I3_CMD, char *action) {
DLOG("%s sticky on window\n", action);
HANDLE_EMPTY_MATCH;
owindow *current;
TAILQ_FOREACH(current, &owindows, owindows) {
if (current->con->window == NULL) {
ELOG("only containers holding a window can be made sticky, skipping con = %p\n", current->con);
continue;
}
DLOG("setting sticky for container = %p / %s\n", current->con, current->con->name);
bool sticky = false;
if (strcmp(action, "enable") == 0)
sticky = true;
else if (strcmp(action, "disable") == 0)
sticky = false;
else if (strcmp(action, "toggle") == 0)
sticky = !current->con->sticky;
current->con->sticky = sticky;
ewmh_update_sticky(current->con->window->id, sticky);
}
/* A window we made sticky might not be on a visible workspace right now, so we need to make
* sure it gets pushed to the front now. */
output_push_sticky_windows();
cmd_output->needs_tree_render = true;
ysuccess(true);
}
/*
* Implementation of 'move <direction> [<pixels> [px]]'.
*

42
src/con.c
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@ -284,6 +284,23 @@ bool con_is_hidden(Con *con) {
return false;
}
/*
* Returns whether the container or any of its children is sticky.
*
*/
bool con_is_sticky(Con *con) {
if (con->sticky)
return true;
Con *child;
TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
if (con_is_sticky(child))
return true;
}
return false;
}
/*
* Returns true if this node accepts a window (if the node swallows windows,
* it might already have swallowed enough and cannot hold any more).
@ -724,7 +741,7 @@ void con_disable_fullscreen(Con *con) {
con_set_fullscreen_mode(con, CF_NONE);
}
static bool _con_move_to_con(Con *con, Con *target, bool behind_focused, bool fix_coordinates, bool dont_warp) {
static bool _con_move_to_con(Con *con, Con *target, bool behind_focused, bool fix_coordinates, bool dont_warp, bool ignore_focus) {
Con *orig_target = target;
/* Prevent moving if this would violate the fullscreen focus restrictions. */
@ -746,7 +763,7 @@ static bool _con_move_to_con(Con *con, Con *target, bool behind_focused, bool fi
Con *child;
while (!TAILQ_EMPTY(&(source_ws->floating_head))) {
child = TAILQ_FIRST(&(source_ws->floating_head));
con_move_to_workspace(child, target_ws, true, true);
con_move_to_workspace(child, target_ws, true, true, false);
}
/* If there are no non-floating children, ignore the workspace. */
@ -806,7 +823,7 @@ static bool _con_move_to_con(Con *con, Con *target, bool behind_focused, bool fi
/* If moving to a visible workspace, call show so it can be considered
* focused. Must do before attaching because workspace_show checks to see
* if focused container is in its area. */
if (workspace_is_visible(target_ws)) {
if (!ignore_focus && workspace_is_visible(target_ws)) {
workspace_show(target_ws);
/* Don’t warp if told so (when dragging floating windows with the
@ -841,8 +858,9 @@ static bool _con_move_to_con(Con *con, Con *target, bool behind_focused, bool fi
* workspace, that is, don’t move focus away if the target workspace is
* invisible.
* We don’t focus the con for i3 pseudo workspaces like __i3_scratch and
* we don’t focus when there is a fullscreen con on that workspace. */
if (!con_is_internal(target_ws) && !fullscreen) {
* we don’t focus when there is a fullscreen con on that workspace. We
* also don't do it if the caller requested to ignore focus. */
if (!ignore_focus && !con_is_internal(target_ws) && !fullscreen) {
/* We need to save the focused workspace on the output in case the
* new workspace is hidden and it's necessary to immediately switch
* back to the originally-focused workspace. */
@ -860,11 +878,12 @@ static bool _con_move_to_con(Con *con, Con *target, bool behind_focused, bool fi
/* Descend focus stack in case focus_next is a workspace which can
* occur if we move to the same workspace. Also show current workspace
* to ensure it is focused. */
if (!ignore_focus)
workspace_show(current_ws);
/* Set focus only if con was on current workspace before moving.
* Otherwise we would give focus to some window on different workspace. */
if (source_ws == current_ws)
if (!ignore_focus && source_ws == current_ws)
con_focus(con_descend_focused(focus_next));
/* 8. If anything within the container is associated with a startup sequence,
@ -925,7 +944,7 @@ bool con_move_to_mark(Con *con, const char *mark) {
/* For floating target containers, we just send the window to the same workspace. */
if (con_is_floating(target)) {
DLOG("target container is floating, moving container to target's workspace.\n");
con_move_to_workspace(con, con_get_workspace(target), true, false);
con_move_to_workspace(con, con_get_workspace(target), true, false, false);
return true;
}
@ -942,7 +961,7 @@ bool con_move_to_mark(Con *con, const char *mark) {
return false;
}
return _con_move_to_con(con, target, false, true, false);
return _con_move_to_con(con, target, false, true, false, false);
}
/*
@ -959,10 +978,13 @@ bool con_move_to_mark(Con *con, const char *mark) {
* The dont_warp flag disables pointer warping and will be set when this
* function is called while dragging a floating window.
*
* If ignore_focus is set, the container will be moved without modifying focus
* at all.
*
* TODO: is there a better place for this function?
*
*/
void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates, bool dont_warp) {
void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates, bool dont_warp, bool ignore_focus) {
assert(workspace->type == CT_WORKSPACE);
Con *source_ws = con_get_workspace(con);
@ -972,7 +994,7 @@ void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates, bool
}
Con *target = con_descend_focused(workspace);
_con_move_to_con(con, target, true, fix_coordinates, dont_warp);
_con_move_to_con(con, target, true, fix_coordinates, dont_warp, ignore_focus);
}
/*

16
src/ewmh.c
View File

@ -213,6 +213,20 @@ void ewmh_update_client_list_stacking(xcb_window_t *stack, int num_windows) {
stack);
}
/*
* Set or remove _NET_WM_STATE_STICKY on the window.
*
*/
void ewmh_update_sticky(xcb_window_t window, bool sticky) {
uint32_t values[1];
unsigned int num = 0;
if (sticky)
values[num++] = A__NET_WM_STATE_STICKY;
xcb_change_property(conn, XCB_PROP_MODE_REPLACE, window, A__NET_WM_STATE, XCB_ATOM_ATOM, 32, num, values);
}
/*
* Set up the EWMH hints on the root window.
*
@ -250,7 +264,7 @@ void ewmh_setup_hints(void) {
xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, A__NET_WM_NAME, A_UTF8_STRING, 8, strlen("i3"), "i3");
/* only send the first 31 atoms (last one is _NET_CLOSE_WINDOW) increment that number when adding supported atoms */
xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, A__NET_SUPPORTED, XCB_ATOM_ATOM, 32, /* number of atoms */ 31, supported_atoms);
xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, A__NET_SUPPORTED, XCB_ATOM_ATOM, 32, /* number of atoms */ 32, supported_atoms);
/* We need to map this window to be able to set the input focus to it if no other window is available to be focused. */
xcb_map_window(conn, ewmh_window);

2
src/floating.c
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@ -412,7 +412,7 @@ bool floating_maybe_reassign_ws(Con *con) {
Con *content = output_get_content(output->con);
Con *ws = TAILQ_FIRST(&(content->focus_head));
DLOG("Moving con %p / %s to workspace %p / %s\n", con, con->name, ws, ws->name);
con_move_to_workspace(con, ws, false, true);
con_move_to_workspace(con, ws, false, true, false);
con_focus(con_descend_focused(con));
return true;
}

14
src/handlers.c
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@ -695,7 +695,8 @@ static void handle_client_message(xcb_client_message_event_t *event) {
if (event->type == A__NET_WM_STATE) {
if (event->format != 32 ||
(event->data.data32[1] != A__NET_WM_STATE_FULLSCREEN &&
event->data.data32[1] != A__NET_WM_STATE_DEMANDS_ATTENTION)) {
event->data.data32[1] != A__NET_WM_STATE_DEMANDS_ATTENTION &&
event->data.data32[1] != A__NET_WM_STATE_STICKY)) {
DLOG("Unknown atom in clientmessage of type %d\n", event->data.data32[1]);
return;
}
@ -725,6 +726,17 @@ static void handle_client_message(xcb_client_message_event_t *event) {
con_set_urgency(con, false);
else if (event->data.data32[0] == _NET_WM_STATE_TOGGLE)
con_set_urgency(con, !con->urgent);
} else if (event->data.data32[1] == A__NET_WM_STATE_STICKY) {
DLOG("Received a client message to modify _NET_WM_STATE_STICKY.\n");
if (event->data.data32[0] == _NET_WM_STATE_ADD)
con->sticky = true;
else if (event->data.data32[0] == _NET_WM_STATE_REMOVE)
con->sticky = false;
else if (event->data.data32[0] == _NET_WM_STATE_TOGGLE)
con->sticky = !con->sticky;
DLOG("New sticky status for con = %p is %i.\n", con, con->sticky);
output_push_sticky_windows();
}
tree_render();

3
src/ipc.c
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@ -436,6 +436,9 @@ void dump_node(yajl_gen gen, struct Con *con, bool inplace_restart) {
ystr("fullscreen_mode");
y(integer, con->fullscreen_mode);
ystr("sticky");
y(bool, con->sticky);
ystr("floating");
switch (con->floating) {
case FLOATING_AUTO_OFF:

3
src/load_layout.c
View File

@ -435,6 +435,9 @@ static int json_bool(void *ctx, int val) {
to_focus = json_node;
}
if (strcasecmp(last_key, "sticky") == 0)
json_node->sticky = val;
if (parsing_swallows) {
if (strcasecmp(last_key, "restart_mode") == 0)
current_swallow->restart_mode = val;

3
src/manage.c
View File

@ -384,6 +384,9 @@ void manage_window(xcb_window_t window, xcb_get_window_attributes_cookie_t cooki
want_floating = true;
}
if (xcb_reply_contains_atom(state_reply, A__NET_WM_STATE_STICKY))
nc->sticky = true;
FREE(state_reply);
FREE(type_reply);

35
src/output.c
View File

@ -46,3 +46,38 @@ Output *get_output_from_string(Output *current_output, const char *output_str) {
return output;
}
/*
* Iterates over all outputs and pushes sticky windows to the currently visible
* workspace on that output.
*
*/
void output_push_sticky_windows(void) {
Con *output;
TAILQ_FOREACH(output, &(croot->nodes_head), nodes) {
Con *workspace, *visible_ws = NULL;
GREP_FIRST(visible_ws, output_get_content(output), workspace_is_visible(child));
/* We use this loop instead of TAILQ_FOREACH to avoid problems if the
* sticky window was the last window on that workspace as moving it in
* this case will close the workspace. */
for (workspace = TAILQ_FIRST(&(output_get_content(output)->nodes_head));
workspace != TAILQ_END(&(output_get_content(output)->nodes_head));) {
Con *current_ws = workspace;
workspace = TAILQ_NEXT(workspace, nodes);
/* Since moving the windows actually removes them from the list of
* floating windows on this workspace, here too we need to use
* another loop than TAILQ_FOREACH. */
Con *child;
for (child = TAILQ_FIRST(&(current_ws->floating_head));
child != TAILQ_END(&(current_ws->floating_head));) {
Con *current = child;
child = TAILQ_NEXT(child, floating_windows);
if (con_is_sticky(current))
con_move_to_workspace(current, visible_ws, true, false, true);
}
}
}
}

6
src/scratchpad.c
View File

@ -60,7 +60,7 @@ void scratchpad_move(Con *con) {
/* 2: Send the window to the __i3_scratch workspace, mainting its
* coordinates and not warping the pointer. */
con_move_to_workspace(con, __i3_scratch, true, true);
con_move_to_workspace(con, __i3_scratch, true, true, false);
/* 3: If this is the first time this window is used as a scratchpad, we set
* the scratchpad_state to SCRATCHPAD_FRESH. The window will then be
@ -142,7 +142,7 @@ void scratchpad_show(Con *con) {
floating->scratchpad_state != SCRATCHPAD_NONE) {
DLOG("Found a visible scratchpad window on another workspace,\n");
DLOG("moving it to this workspace: con = %p\n", walk_con);
con_move_to_workspace(walk_con, focused_ws, true, false);
con_move_to_workspace(walk_con, focused_ws, true, false, false);
return;
}
}
@ -189,7 +189,7 @@ void scratchpad_show(Con *con) {
}
/* 1: Move the window from __i3_scratch to the current workspace. */
con_move_to_workspace(con, active, true, false);
con_move_to_workspace(con, active, true, false, false);
/* 2: Adjust the size if this window was not adjusted yet. */
if (con->scratchpad_state == SCRATCHPAD_FRESH) {

3
src/workspace.c
View File

@ -450,6 +450,9 @@ static void _workspace_show(Con *workspace) {
/* Update the EWMH hints */
ewmh_update_current_desktop();
/* Push any sticky windows to the now visible workspace. */
output_push_sticky_windows();
}
/*

1
testcases/t/116-nestedcons.t
View File

@ -47,6 +47,7 @@ my $ignore = \"";
my $expected = {
fullscreen_mode => 0,
sticky => $ignore,
nodes => $ignore,
window => undef,
name => 'root',

2
testcases/t/187-commands-parser.t
View File

@ -144,7 +144,7 @@ is(parser_calls("\nworkspace test"),
################################################################################
is(parser_calls('unknown_literal'),
"ERROR: Expected one of these tokens: <end>, '[', 'move', 'exec', 'exit', 'restart', 'reload', 'shmlog', 'debuglog', 'border', 'layout', 'append_layout', 'workspace', 'focus', 'kill', 'open', 'fullscreen', 'split', 'floating', 'mark', 'unmark', 'resize', 'rename', 'nop', 'scratchpad', 'title_format', 'mode', 'bar'\n" .
"ERROR: Expected one of these tokens: <end>, '[', 'move', 'exec', 'exit', 'restart', 'reload', 'shmlog', 'debuglog', 'border', 'layout', 'append_layout', 'workspace', 'focus', 'kill', 'open', 'fullscreen', 'sticky', 'split', 'floating', 'mark', 'unmark', 'resize', 'rename', 'nop', 'scratchpad', 'title_format', 'mode', 'bar'\n" .
"ERROR: Your command: unknown_literal\n" .
"ERROR: ^^^^^^^^^^^^^^^",
'error for unknown literal ok');

96
testcases/t/251-sticky.t Normal file
View File

@ -0,0 +1,96 @@
#!perl
# vim:ts=4:sw=4:expandtab
#
# Please read the following documents before working on tests:
# • http://build.i3wm.org/docs/testsuite.html
# (or docs/testsuite)
#
# • http://build.i3wm.org/docs/lib-i3test.html
# (alternatively: perldoc ./testcases/lib/i3test.pm)
#
# • http://build.i3wm.org/docs/ipc.html
# (or docs/ipc)
#
# • http://onyxneon.com/books/modern_perl/modern_perl_a4.pdf
# (unless you are already familiar with Perl)
#
# Tests sticky windows.
# Ticket: #1455
use i3test;
my ($ws, $focused);
###############################################################################
# 1: Given a sticky tiling container, when the workspace is switched, then
# nothing happens.
###############################################################################
fresh_workspace;
open_window(wm_class => 'findme');
cmd 'sticky enable';
$ws = fresh_workspace;
is(@{get_ws($ws)->{nodes}}, 0, 'tiling sticky container did not move');
is(@{get_ws($ws)->{floating_nodes}}, 0, 'tiling sticky container did not move');
cmd '[class="findme"] kill';
###############################################################################
# 2: Given a sticky floating container, when the workspace is switched, then
# the container moves to the new workspace.
###############################################################################
$ws = fresh_workspace;
open_floating_window(wm_class => 'findme');
$focused = get_focused($ws);
cmd 'sticky enable';
$ws = fresh_workspace;
is(@{get_ws($ws)->{floating_nodes}}, 1, 'floating sticky container moved to new workspace');
is(get_focused($ws), $focused, 'sticky container has focus');
cmd '[class="findme"] kill';
###############################################################################
# 3: Given two sticky floating containers, when the workspace is switched,
# then both containers move to the new workspace.
###############################################################################
fresh_workspace;
open_floating_window(wm_class => 'findme');
cmd 'sticky enable';
open_floating_window(wm_class => 'findme');
cmd 'sticky enable';
$ws = fresh_workspace;
is(@{get_ws($ws)->{floating_nodes}}, 2, 'multiple sticky windows can be used at the same time');
cmd '[class="findme"] kill';
###############################################################################
# 4: Given a sticky floating container and a tiling container on the target
# workspace, when the workspace is switched, then the tiling container is
# focused.
###############################################################################
$ws = fresh_workspace;
open_window;
$focused = get_focused($ws);
fresh_workspace;
open_floating_window(wm_class => 'findme');
cmd 'sticky enable';
cmd 'workspace ' . $ws;
is(get_focused($ws), $focused, 'the tiling container has focus');
cmd '[class="findme"] kill';
###############################################################################
# 5: Given a floating container on a non-visible workspace, when the window
# is made sticky, then the window immediately jumps to the currently
# visible workspace.
###############################################################################
fresh_workspace;
open_floating_window(wm_class => 'findme');
cmd 'mark sticky';
$ws = fresh_workspace;
cmd '[con_mark=sticky] sticky enable';
is(@{get_ws($ws)->{floating_nodes}}, 1, 'the sticky window jumps to the front');
cmd '[class="findme"] kill';
###############################################################################
done_testing;