swayfx/sway/commands/focus.c

449 lines
13 KiB
C

#include <float.h>
#include <strings.h>
#include <wlr/types/wlr_output_layout.h>
#include "log.h"
#include "sway/commands.h"
#include "sway/input/input-manager.h"
#include "sway/input/cursor.h"
#include "sway/input/seat.h"
#include "sway/output.h"
#include "sway/tree/arrange.h"
#include "sway/tree/root.h"
#include "sway/tree/view.h"
#include "sway/tree/workspace.h"
#include "stringop.h"
#include "util.h"
static bool get_direction_from_next_prev(struct sway_container *container,
struct sway_seat *seat, const char *name, enum wlr_direction *out) {
enum sway_container_layout parent_layout = L_NONE;
if (container) {
parent_layout = container_parent_layout(container);
}
if (strcasecmp(name, "prev") == 0) {
switch (parent_layout) {
case L_HORIZ:
case L_TABBED:
*out = WLR_DIRECTION_LEFT;
break;
case L_VERT:
case L_STACKED:
*out = WLR_DIRECTION_UP;
break;
case L_NONE:
return true;
default:
return false;
}
} else if (strcasecmp(name, "next") == 0) {
switch (parent_layout) {
case L_HORIZ:
case L_TABBED:
*out = WLR_DIRECTION_RIGHT;
break;
case L_VERT:
case L_STACKED:
*out = WLR_DIRECTION_DOWN;
break;
case L_NONE:
return true;
default:
return false;
}
} else {
return false;
}
return true;
}
static bool parse_direction(const char *name,
enum wlr_direction *out) {
if (strcasecmp(name, "left") == 0) {
*out = WLR_DIRECTION_LEFT;
} else if (strcasecmp(name, "right") == 0) {
*out = WLR_DIRECTION_RIGHT;
} else if (strcasecmp(name, "up") == 0) {
*out = WLR_DIRECTION_UP;
} else if (strcasecmp(name, "down") == 0) {
*out = WLR_DIRECTION_DOWN;
} else {
return false;
}
return true;
}
/**
* Get node in the direction of newly entered output.
*/
static struct sway_node *get_node_in_output_direction(
struct sway_output *output, enum wlr_direction dir) {
struct sway_seat *seat = config->handler_context.seat;
struct sway_workspace *ws = output_get_active_workspace(output);
if (!sway_assert(ws, "Expected output to have a workspace")) {
return NULL;
}
if (ws->fullscreen) {
return seat_get_focus_inactive(seat, &ws->fullscreen->node);
}
struct sway_container *container = NULL;
if (ws->tiling->length > 0) {
switch (dir) {
case WLR_DIRECTION_LEFT:
if (ws->layout == L_HORIZ || ws->layout == L_TABBED) {
// get most right child of new output
container = ws->tiling->items[ws->tiling->length-1];
} else {
container = seat_get_focus_inactive_tiling(seat, ws);
}
break;
case WLR_DIRECTION_RIGHT:
if (ws->layout == L_HORIZ || ws->layout == L_TABBED) {
// get most left child of new output
container = ws->tiling->items[0];
} else {
container = seat_get_focus_inactive_tiling(seat, ws);
}
break;
case WLR_DIRECTION_UP:
if (ws->layout == L_VERT || ws->layout == L_STACKED) {
// get most bottom child of new output
container = ws->tiling->items[ws->tiling->length-1];
} else {
container = seat_get_focus_inactive_tiling(seat, ws);
}
break;
case WLR_DIRECTION_DOWN:
if (ws->layout == L_VERT || ws->layout == L_STACKED) {
// get most top child of new output
container = ws->tiling->items[0];
} else {
container = seat_get_focus_inactive_tiling(seat, ws);
}
break;
}
}
if (container) {
container = seat_get_focus_inactive_view(seat, &container->node);
return &container->node;
}
return &ws->node;
}
static struct sway_node *node_get_in_direction_tiling(
struct sway_container *container, struct sway_seat *seat,
enum wlr_direction dir, bool descend) {
struct sway_container *wrap_candidate = NULL;
struct sway_container *current = container;
while (current) {
if (current->fullscreen_mode == FULLSCREEN_WORKSPACE) {
// Fullscreen container with a direction - go straight to outputs
struct sway_output *output = current->workspace->output;
struct sway_output *new_output =
output_get_in_direction(output, dir);
if (!new_output) {
return NULL;
}
return get_node_in_output_direction(new_output, dir);
}
if (current->fullscreen_mode == FULLSCREEN_GLOBAL) {
return NULL;
}
bool can_move = false;
int desired;
int idx = container_sibling_index(current);
enum sway_container_layout parent_layout =
container_parent_layout(current);
list_t *siblings = container_get_siblings(current);
if (dir == WLR_DIRECTION_LEFT || dir == WLR_DIRECTION_RIGHT) {
if (parent_layout == L_HORIZ || parent_layout == L_TABBED) {
can_move = true;
desired = idx + (dir == WLR_DIRECTION_LEFT ? -1 : 1);
}
} else {
if (parent_layout == L_VERT || parent_layout == L_STACKED) {
can_move = true;
desired = idx + (dir == WLR_DIRECTION_UP ? -1 : 1);
}
}
if (can_move) {
if (desired < 0 || desired >= siblings->length) {
int len = siblings->length;
if (config->focus_wrapping != WRAP_NO && !wrap_candidate
&& len > 1) {
if (desired < 0) {
wrap_candidate = siblings->items[len-1];
} else {
wrap_candidate = siblings->items[0];
}
if (config->focus_wrapping == WRAP_FORCE) {
struct sway_container *c = seat_get_focus_inactive_view(
seat, &wrap_candidate->node);
return &c->node;
}
}
} else {
struct sway_container *desired_con = siblings->items[desired];
if (!descend) {
return &desired_con->node;
} else {
struct sway_container *c = seat_get_focus_inactive_view(
seat, &desired_con->node);
return &c->node;
}
}
}
current = current->parent;
}
// Check a different output
struct sway_output *output = container->workspace->output;
struct sway_output *new_output = output_get_in_direction(output, dir);
if ((config->focus_wrapping != WRAP_WORKSPACE ||
container->node.type == N_WORKSPACE) && new_output) {
return get_node_in_output_direction(new_output, dir);
}
// If there is a wrap candidate, return its focus inactive view
if (wrap_candidate) {
struct sway_container *wrap_inactive = seat_get_focus_inactive_view(
seat, &wrap_candidate->node);
return &wrap_inactive->node;
}
return NULL;
}
static struct sway_node *node_get_in_direction_floating(
struct sway_container *con, struct sway_seat *seat,
enum wlr_direction dir) {
double ref_lx = con->x + con->width / 2;
double ref_ly = con->y + con->height / 2;
double closest_distance = DBL_MAX;
struct sway_container *closest_con = NULL;
if (!con->workspace) {
return NULL;
}
for (int i = 0; i < con->workspace->floating->length; i++) {
struct sway_container *floater = con->workspace->floating->items[i];
if (floater == con) {
continue;
}
float distance = dir == WLR_DIRECTION_LEFT || dir == WLR_DIRECTION_RIGHT
? (floater->x + floater->width / 2) - ref_lx
: (floater->y + floater->height / 2) - ref_ly;
if (dir == WLR_DIRECTION_LEFT || dir == WLR_DIRECTION_UP) {
distance = -distance;
}
if (distance < 0) {
continue;
}
if (distance < closest_distance) {
closest_distance = distance;
closest_con = floater;
}
}
return closest_con ? &closest_con->node : NULL;
}
static struct cmd_results *focus_mode(struct sway_workspace *ws,
struct sway_seat *seat, bool floating) {
struct sway_container *new_focus = NULL;
if (floating) {
new_focus = seat_get_focus_inactive_floating(seat, ws);
} else {
new_focus = seat_get_focus_inactive_tiling(seat, ws);
}
if (new_focus) {
seat_set_focus_container(seat, new_focus);
seat_consider_warp_to_focus(seat);
} else {
return cmd_results_new(CMD_FAILURE,
"Failed to find a %s container in workspace",
floating ? "floating" : "tiling");
}
return cmd_results_new(CMD_SUCCESS, NULL);
}
static struct cmd_results *focus_output(struct sway_seat *seat,
int argc, char **argv) {
if (!argc) {
return cmd_results_new(CMD_INVALID,
"Expected 'focus output <direction|name>'");
}
char *identifier = join_args(argv, argc);
struct sway_output *output = output_by_name_or_id(identifier);
if (!output) {
enum wlr_direction direction;
if (!parse_direction(identifier, &direction)) {
free(identifier);
return cmd_results_new(CMD_INVALID,
"There is no output with that name");
}
struct sway_workspace *ws = seat_get_focused_workspace(seat);
if (!ws) {
free(identifier);
return cmd_results_new(CMD_FAILURE,
"No focused workspace to base directions off of");
}
output = output_get_in_direction(ws->output, direction);
if (!output) {
int center_lx = ws->output->lx + ws->output->width / 2;
int center_ly = ws->output->ly + ws->output->height / 2;
struct wlr_output *target = wlr_output_layout_farthest_output(
root->output_layout, opposite_direction(direction),
ws->output->wlr_output, center_lx, center_ly);
if (target) {
output = output_from_wlr_output(target);
}
}
}
free(identifier);
if (output) {
seat_set_focus(seat, seat_get_focus_inactive(seat, &output->node));
seat_consider_warp_to_focus(seat);
}
return cmd_results_new(CMD_SUCCESS, NULL);
}
static struct cmd_results *focus_parent(void) {
struct sway_seat *seat = config->handler_context.seat;
struct sway_container *con = config->handler_context.container;
if (!con || con->fullscreen_mode) {
return cmd_results_new(CMD_SUCCESS, NULL);
}
struct sway_node *parent = node_get_parent(&con->node);
if (parent) {
seat_set_focus(seat, parent);
seat_consider_warp_to_focus(seat);
}
return cmd_results_new(CMD_SUCCESS, NULL);
}
static struct cmd_results *focus_child(void) {
struct sway_seat *seat = config->handler_context.seat;
struct sway_node *node = config->handler_context.node;
struct sway_node *focus = seat_get_active_tiling_child(seat, node);
if (focus) {
seat_set_focus(seat, focus);
seat_consider_warp_to_focus(seat);
}
return cmd_results_new(CMD_SUCCESS, NULL);
}
struct cmd_results *cmd_focus(int argc, char **argv) {
if (config->reading || !config->active) {
return cmd_results_new(CMD_DEFER, NULL);
}
if (!root->outputs->length) {
return cmd_results_new(CMD_INVALID,
"Can't run this command while there's no outputs connected.");
}
struct sway_node *node = config->handler_context.node;
struct sway_container *container = config->handler_context.container;
struct sway_workspace *workspace = config->handler_context.workspace;
struct sway_seat *seat = config->handler_context.seat;
if (node->type < N_WORKSPACE) {
return cmd_results_new(CMD_FAILURE,
"Command 'focus' cannot be used above the workspace level");
}
if (argc == 0 && container) {
if (container_is_scratchpad_hidden(container)) {
root_scratchpad_show(container);
}
seat_set_focus_container(seat, container);
seat_consider_warp_to_focus(seat);
container_raise_floating(container);
return cmd_results_new(CMD_SUCCESS, NULL);
}
if (strcmp(argv[0], "floating") == 0) {
return focus_mode(workspace, seat, true);
} else if (strcmp(argv[0], "tiling") == 0) {
return focus_mode(workspace, seat, false);
} else if (strcmp(argv[0], "mode_toggle") == 0) {
bool floating = container && container_is_floating_or_child(container);
return focus_mode(workspace, seat, !floating);
}
if (strcmp(argv[0], "output") == 0) {
argc--; argv++;
return focus_output(seat, argc, argv);
}
if (strcasecmp(argv[0], "parent") == 0) {
return focus_parent();
}
if (strcasecmp(argv[0], "child") == 0) {
return focus_child();
}
enum wlr_direction direction = 0;
bool descend = true;
if (!parse_direction(argv[0], &direction)) {
if (!get_direction_from_next_prev(container, seat, argv[0], &direction)) {
return cmd_results_new(CMD_INVALID,
"Expected 'focus <direction|next|prev|parent|child|mode_toggle|floating|tiling>' "
"or 'focus output <direction|name>'");
} else if (argc == 2 && strcasecmp(argv[1], "sibling") == 0) {
descend = false;
}
}
if (!direction) {
return cmd_results_new(CMD_SUCCESS, NULL);
}
if (node->type == N_WORKSPACE) {
// Jump to the next output
struct sway_output *new_output =
output_get_in_direction(workspace->output, direction);
if (!new_output) {
return cmd_results_new(CMD_SUCCESS, NULL);
}
struct sway_node *node =
get_node_in_output_direction(new_output, direction);
seat_set_focus(seat, node);
seat_consider_warp_to_focus(seat);
return cmd_results_new(CMD_SUCCESS, NULL);
}
if (!sway_assert(container, "Expected container to be non null")) {
return cmd_results_new(CMD_FAILURE, "");
}
struct sway_node *next_focus = NULL;
if (container_is_floating(container)) {
next_focus = node_get_in_direction_floating(container, seat, direction);
} else {
next_focus = node_get_in_direction_tiling(container, seat, direction, descend);
}
if (next_focus) {
seat_set_focus(seat, next_focus);
seat_consider_warp_to_focus(seat);
if (next_focus->type == N_CONTAINER) {
container_raise_floating(next_focus->sway_container);
}
}
return cmd_results_new(CMD_SUCCESS, NULL);
}