209 lines
7.1 KiB
C
209 lines
7.1 KiB
C
#undef I3__FILE__
|
||
#define I3__FILE__ "move.c"
|
||
/*
|
||
* vim:ts=4:sw=4:expandtab
|
||
*
|
||
* i3 - an improved dynamic tiling window manager
|
||
* © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
|
||
*
|
||
* move.c: Moving containers into some direction.
|
||
*
|
||
*/
|
||
#include "all.h"
|
||
|
||
typedef enum { BEFORE, AFTER } position_t;
|
||
|
||
/*
|
||
* This function detaches 'con' from its parent and inserts it either before or
|
||
* after 'target'.
|
||
*
|
||
*/
|
||
static void insert_con_into(Con *con, Con *target, position_t position) {
|
||
Con *parent = target->parent;
|
||
/* We need to preserve the old con->parent. While it might still be used to
|
||
* insert the entry before/after it, we call the on_remove_child callback
|
||
* afterwards which might then close the con if it is empty. */
|
||
Con *old_parent = con->parent;
|
||
|
||
con_detach(con);
|
||
con_fix_percent(con->parent);
|
||
|
||
/* When moving to a workspace, we respect the user’s configured
|
||
* workspace_layout */
|
||
if (parent->type == CT_WORKSPACE) {
|
||
Con *split = workspace_attach_to(parent);
|
||
if (split != parent) {
|
||
DLOG("Got a new split con, using that one instead\n");
|
||
con->parent = split;
|
||
con_attach(con, split, false);
|
||
DLOG("attached\n");
|
||
con->percent = 0.0;
|
||
con_fix_percent(split);
|
||
con = split;
|
||
DLOG("ok, continuing with con %p instead\n", con);
|
||
con_detach(con);
|
||
}
|
||
}
|
||
|
||
con->parent = parent;
|
||
|
||
if (position == BEFORE) {
|
||
TAILQ_INSERT_BEFORE(target, con, nodes);
|
||
TAILQ_INSERT_HEAD(&(parent->focus_head), con, focused);
|
||
} else if (position == AFTER) {
|
||
TAILQ_INSERT_AFTER(&(parent->nodes_head), target, con, nodes);
|
||
TAILQ_INSERT_HEAD(&(parent->focus_head), con, focused);
|
||
}
|
||
|
||
/* Pretend the con was just opened with regards to size percent values.
|
||
* Since the con is moved to a completely different con, the old value
|
||
* does not make sense anyways. */
|
||
con->percent = 0.0;
|
||
con_fix_percent(parent);
|
||
|
||
CALL(old_parent, on_remove_child);
|
||
}
|
||
|
||
/*
|
||
* This function detaches 'con' from its parent and inserts it at the given
|
||
* workspace.
|
||
*
|
||
*/
|
||
static void attach_to_workspace(Con *con, Con *ws) {
|
||
con_detach(con);
|
||
con_fix_percent(con->parent);
|
||
|
||
CALL(con->parent, on_remove_child);
|
||
|
||
con->parent = ws;
|
||
|
||
TAILQ_INSERT_TAIL(&(ws->nodes_head), con, nodes);
|
||
TAILQ_INSERT_TAIL(&(ws->focus_head), con, focused);
|
||
|
||
/* Pretend the con was just opened with regards to size percent values.
|
||
* Since the con is moved to a completely different con, the old value
|
||
* does not make sense anyways. */
|
||
con->percent = 0.0;
|
||
con_fix_percent(ws);
|
||
}
|
||
|
||
/*
|
||
* Moves the current container in the given direction (D_LEFT, D_RIGHT,
|
||
* D_UP, D_DOWN).
|
||
*
|
||
*/
|
||
void tree_move(int direction) {
|
||
DLOG("Moving in direction %d\n", direction);
|
||
/* 1: get the first parent with the same orientation */
|
||
Con *con = focused;
|
||
|
||
if (con->type == CT_WORKSPACE) {
|
||
DLOG("Not moving workspace\n");
|
||
return;
|
||
}
|
||
|
||
if (con->parent->type == CT_WORKSPACE && con_num_children(con->parent) == 1) {
|
||
DLOG("This is the only con on this workspace, not doing anything\n");
|
||
return;
|
||
}
|
||
|
||
orientation_t o = (direction == D_LEFT || direction == D_RIGHT ? HORIZ : VERT);
|
||
|
||
Con *same_orientation = con_parent_with_orientation(con, o);
|
||
/* The do {} while is used to 'restart' at this point with a different
|
||
* same_orientation, see the very last lines before the end of this block
|
||
* */
|
||
do {
|
||
/* There is no parent container with the same orientation */
|
||
if (!same_orientation) {
|
||
if (con_is_floating(con)) {
|
||
/* this is a floating con, we just disable floating */
|
||
floating_disable(con, true);
|
||
return;
|
||
}
|
||
if (con_inside_floating(con)) {
|
||
/* 'con' should be moved out of a floating container */
|
||
DLOG("Inside floating, moving to workspace\n");
|
||
attach_to_workspace(con, con_get_workspace(con));
|
||
goto end;
|
||
}
|
||
DLOG("Force-changing orientation\n");
|
||
ws_force_orientation(con_get_workspace(con), o);
|
||
same_orientation = con_parent_with_orientation(con, o);
|
||
}
|
||
|
||
/* easy case: the move is within this container */
|
||
if (same_orientation == con->parent) {
|
||
DLOG("We are in the same container\n");
|
||
Con *swap;
|
||
if ((swap = (direction == D_LEFT || direction == D_UP ?
|
||
TAILQ_PREV(con, nodes_head, nodes) :
|
||
TAILQ_NEXT(con, nodes)))) {
|
||
if (!con_is_leaf(swap)) {
|
||
insert_con_into(con, con_descend_focused(swap), AFTER);
|
||
goto end;
|
||
}
|
||
if (direction == D_LEFT || direction == D_UP)
|
||
TAILQ_SWAP(swap, con, &(swap->parent->nodes_head), nodes);
|
||
else TAILQ_SWAP(con, swap, &(swap->parent->nodes_head), nodes);
|
||
|
||
TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
|
||
TAILQ_INSERT_HEAD(&(swap->parent->focus_head), con, focused);
|
||
|
||
DLOG("Swapped.\n");
|
||
return;
|
||
}
|
||
|
||
/* If there was no con with which we could swap the current one, search
|
||
* again, but starting one level higher. If we are on the workspace
|
||
* level, don’t do that. The result would be a force change of
|
||
* workspace orientation, which is not necessary. */
|
||
if (con->parent == con_get_workspace(con))
|
||
return;
|
||
same_orientation = con_parent_with_orientation(con->parent, o);
|
||
}
|
||
} while (same_orientation == NULL);
|
||
|
||
/* this time, we have to move to another container */
|
||
/* This is the container *above* 'con' (an ancestor of con) which is inside
|
||
* 'same_orientation' */
|
||
Con *above = con;
|
||
while (above->parent != same_orientation)
|
||
above = above->parent;
|
||
|
||
/* Enforce the fullscreen focus restrictions. */
|
||
if (!con_fullscreen_permits_focusing(above->parent)) {
|
||
LOG("Cannot move out of fullscreen container\n");
|
||
return;
|
||
}
|
||
|
||
DLOG("above = %p\n", above);
|
||
Con *next;
|
||
position_t position;
|
||
if (direction == D_UP || direction == D_LEFT) {
|
||
position = BEFORE;
|
||
next = TAILQ_PREV(above, nodes_head, nodes);
|
||
} else {
|
||
position = AFTER;
|
||
next = TAILQ_NEXT(above, nodes);
|
||
}
|
||
|
||
/* special case: there is a split container in the direction we are moving
|
||
* to, so descend and append */
|
||
if (next && !con_is_leaf(next))
|
||
insert_con_into(con, con_descend_focused(next), AFTER);
|
||
else
|
||
insert_con_into(con, above, position);
|
||
|
||
end:
|
||
/* We need to call con_focus() to fix the focus stack "above" the container
|
||
* we just inserted the focused container into (otherwise, the parent
|
||
* container(s) would still point to the old container(s)). */
|
||
con_focus(con);
|
||
|
||
/* force re-painting the indicators */
|
||
FREE(con->deco_render_params);
|
||
|
||
tree_flatten(croot);
|
||
}
|