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#define _POSIX_C_SOURCE 200809L
#include <stdlib.h>
#include <wayland-server.h>
#include <wlr/render/wlr_renderer.h>
#include <wlr/types/wlr_output_layout.h>
#include "log.h"
#include "sway/criteria.h"
#include "sway/commands.h"
#include "sway/ipc-server.h"
#include "sway/output.h"
#include "sway/input/seat.h"
#include "sway/tree/arrange.h"
#include "sway/tree/container.h"
#include "sway/tree/layout.h"
#include "sway/tree/view.h"
#include "sway/tree/workspace.h"
void view_init(struct sway_view *view, enum sway_view_type type,
const struct sway_view_impl *impl) {
view->type = type;
view->impl = impl;
wl_signal_init(&view->events.unmap);
}
void view_destroy(struct sway_view *view) {
if (view == NULL) {
return;
}
if (view->surface != NULL) {
view_unmap(view);
}
container_destroy(view->swayc);
if (view->impl->destroy) {
view->impl->destroy(view);
} else {
free(view);
}
}
const char *view_get_title(struct sway_view *view) {
if (view->impl->get_prop) {
return view->impl->get_prop(view, VIEW_PROP_TITLE);
}
return NULL;
}
const char *view_get_app_id(struct sway_view *view) {
if (view->impl->get_prop) {
return view->impl->get_prop(view, VIEW_PROP_APP_ID);
}
return NULL;
}
const char *view_get_class(struct sway_view *view) {
if (view->impl->get_prop) {
return view->impl->get_prop(view, VIEW_PROP_CLASS);
}
return NULL;
}
const char *view_get_instance(struct sway_view *view) {
if (view->impl->get_prop) {
return view->impl->get_prop(view, VIEW_PROP_INSTANCE);
}
return NULL;
}
const char *view_get_type(struct sway_view *view) {
switch(view->type) {
case SWAY_VIEW_WL_SHELL:
return "wl_shell";
case SWAY_VIEW_XDG_SHELL_V6:
return "xdg_shell_v6";
case SWAY_VIEW_XWAYLAND:
return "xwayland";
}
return "unknown";
}
void view_configure(struct sway_view *view, double ox, double oy, int width,
int height) {
if (view->impl->configure) {
view->impl->configure(view, ox, oy, width, height);
}
}
void view_autoconfigure(struct sway_view *view) {
if (!sway_assert(view->swayc,
"Called view_autoconfigure() on a view without a swayc")) {
return;
}
if (view->is_fullscreen) {
struct sway_container *output = container_parent(view->swayc, C_OUTPUT);
view_configure(view, 0, 0, output->width, output->height);
view->x = view->y = 0;
return;
}
struct sway_container *ws = container_parent(view->swayc, C_WORKSPACE);
int other_views = ws->children->length - 1;
double x, y, width, height;
x = y = width = height = 0;
switch (view->border) {
case B_NONE:
x = view->swayc->x;
y = view->swayc->y;
width = view->swayc->width;
height = view->swayc->height;
break;
case B_PIXEL:
if (view->swayc->layout > L_VERT
|| config->hide_edge_borders == E_NONE
|| config->hide_edge_borders == E_HORIZONTAL
|| (config->hide_edge_borders == E_SMART && other_views)) {
x = view->swayc->x + view->border_thickness;
width = view->swayc->width - view->border_thickness * 2;
} else {
x = view->swayc->x;
width = view->swayc->width;
}
if (view->swayc->layout > L_VERT
|| config->hide_edge_borders == E_NONE
|| config->hide_edge_borders == E_VERTICAL
|| (config->hide_edge_borders == E_SMART && other_views)) {
y = view->swayc->y + view->border_thickness;
height = view->swayc->height - view->border_thickness * 2;
} else {
y = view->swayc->y;
height = view->swayc->height;
}
break;
case B_NORMAL:
if (view->swayc->layout > L_VERT
|| config->hide_edge_borders == E_NONE
|| config->hide_edge_borders == E_HORIZONTAL
|| (config->hide_edge_borders == E_SMART && other_views)) {
x = view->swayc->x + view->border_thickness;
width = view->swayc->width - view->border_thickness * 2;
} else {
x = view->swayc->x;
width = view->swayc->width;
}
if (view->swayc->layout > L_VERT
|| config->hide_edge_borders == E_NONE
|| config->hide_edge_borders == E_VERTICAL
|| (config->hide_edge_borders == E_SMART && other_views)) {
// Height is: border + title height + border + view height + border
y = view->swayc->y + config->font_height
+ view->border_thickness * 2;
height = view->swayc->height - config->font_height
- view->border_thickness * 3;
} else {
y = view->swayc->y;
height = view->swayc->height;
}
break;
}
view->x = x;
view->y = y;
view_configure(view, x, y, width, height);
}
void view_set_activated(struct sway_view *view, bool activated) {
if (view->impl->set_activated) {
view->impl->set_activated(view, activated);
}
}
// Set fullscreen, but without IPC events or arranging windows.
void view_set_fullscreen_raw(struct sway_view *view, bool fullscreen) {
if (view->is_fullscreen == fullscreen) {
return;
}
struct sway_container *workspace =
container_parent(view->swayc, C_WORKSPACE);
if (view->impl->set_fullscreen) {
view->impl->set_fullscreen(view, fullscreen);
}
view->is_fullscreen = fullscreen;
if (fullscreen) {
if (workspace->sway_workspace->fullscreen) {
view_set_fullscreen(workspace->sway_workspace->fullscreen, false);
}
workspace->sway_workspace->fullscreen = view;
view->swayc->saved_width = view->swayc->width;
view->swayc->saved_height = view->swayc->height;
struct sway_seat *seat;
struct sway_container *focus, *focus_ws;
wl_list_for_each(seat, &input_manager->seats, link) {
focus = seat_get_focus(seat);
focus_ws = focus;
if (focus_ws->type != C_WORKSPACE) {
focus_ws = container_parent(focus_ws, C_WORKSPACE);
}
seat_set_focus(seat, view->swayc);
if (focus_ws != workspace) {
seat_set_focus(seat, focus);
}
}
} else {
workspace->sway_workspace->fullscreen = NULL;
view->swayc->width = view->swayc->saved_width;
view->swayc->height = view->swayc->saved_height;
}
}
void view_set_fullscreen(struct sway_view *view, bool fullscreen) {
if (view->is_fullscreen == fullscreen) {
return;
}
view_set_fullscreen_raw(view, fullscreen);
struct sway_container *workspace =
container_parent(view->swayc, C_WORKSPACE);
arrange_workspace(workspace);
output_damage_whole(workspace->parent->sway_output);
ipc_event_window(view->swayc, "fullscreen_mode");
}
void view_close(struct sway_view *view) {
if (view->impl->close) {
view->impl->close(view);
}
}
void view_damage_from(struct sway_view *view) {
for (int i = 0; i < root_container.children->length; ++i) {
struct sway_container *cont = root_container.children->items[i];
if (cont->type == C_OUTPUT) {
output_damage_from_view(cont->sway_output, view);
}
}
}
static void view_get_layout_box(struct sway_view *view, struct wlr_box *box) {
struct sway_container *output = container_parent(view->swayc, C_OUTPUT);
box->x = output->x + view->swayc->x;
box->y = output->y + view->swayc->y;
box->width = view->width;
box->height = view->height;
}
void view_for_each_surface(struct sway_view *view,
wlr_surface_iterator_func_t iterator, void *user_data) {
if (view->impl->for_each_surface) {
view->impl->for_each_surface(view, iterator, user_data);
} else {
wlr_surface_for_each_surface(view->surface, iterator, user_data);
}
}
static void view_subsurface_create(struct sway_view *view,
struct wlr_subsurface *subsurface);
static void view_init_subsurfaces(struct sway_view *view,
struct wlr_surface *surface);
static void view_handle_surface_new_subsurface(struct wl_listener *listener,
void *data) {
struct sway_view *view =
wl_container_of(listener, view, surface_new_subsurface);
struct wlr_subsurface *subsurface = data;
view_subsurface_create(view, subsurface);
}
static void surface_send_enter_iterator(struct wlr_surface *surface,
int x, int y, void *data) {
struct wlr_output *wlr_output = data;
wlr_surface_send_enter(surface, wlr_output);
}
static void surface_send_leave_iterator(struct wlr_surface *surface,
int x, int y, void *data) {
struct wlr_output *wlr_output = data;
wlr_surface_send_leave(surface, wlr_output);
}
static void view_handle_container_reparent(struct wl_listener *listener,
void *data) {
struct sway_view *view =
wl_container_of(listener, view, container_reparent);
struct sway_container *old_parent = data;
struct sway_container *old_output = old_parent;
if (old_output != NULL && old_output->type != C_OUTPUT) {
old_output = container_parent(old_output, C_OUTPUT);
}
struct sway_container *new_output = view->swayc->parent;
if (new_output != NULL && new_output->type != C_OUTPUT) {
new_output = container_parent(new_output, C_OUTPUT);
}
if (old_output == new_output) {
return;
}
if (old_output != NULL) {
view_for_each_surface(view, surface_send_leave_iterator,
old_output->sway_output->wlr_output);
}
if (new_output != NULL) {
view_for_each_surface(view, surface_send_enter_iterator,
new_output->sway_output->wlr_output);
}
}
static void view_execute_criteria(struct sway_view *view) {
if (!sway_assert(view->swayc, "cannot run criteria for unmapped view")) {
return;
}
struct sway_seat *seat = input_manager_current_seat(input_manager);
struct sway_container *prior_workspace =
container_parent(view->swayc, C_WORKSPACE);
list_t *criteria = criteria_for(view->swayc);
for (int i = 0; i < criteria->length; i++) {
struct criteria *crit = criteria->items[i];
wlr_log(L_DEBUG, "for_window '%s' matches new view %p, cmd: '%s'",
crit->crit_raw, view, crit->cmdlist);
struct cmd_results *res = execute_command(crit->cmdlist, NULL);
if (res->status != CMD_SUCCESS) {
wlr_log(L_ERROR, "Command '%s' failed: %s", res->input, res->error);
}
free_cmd_results(res);
// view must be focused for commands to affect it,
// so always refocus in-between command lists
seat_set_focus(seat, view->swayc);
}
list_free(criteria);
seat_set_focus(seat, seat_get_focus_inactive(seat, prior_workspace));
}
void view_map(struct sway_view *view, struct wlr_surface *wlr_surface) {
if (!sway_assert(view->surface == NULL, "cannot map mapped view")) {
return;
}
struct sway_seat *seat = input_manager_current_seat(input_manager);
struct sway_container *focus = seat_get_focus_inactive(seat,
&root_container);
struct sway_container *cont = container_view_create(focus, view);
view->surface = wlr_surface;
view->swayc = cont;
view->border = config->border;
view->border_thickness = config->border_thickness;
view_init_subsurfaces(view, wlr_surface);
wl_signal_add(&wlr_surface->events.new_subsurface,
&view->surface_new_subsurface);
view->surface_new_subsurface.notify = view_handle_surface_new_subsurface;
wl_signal_add(&view->swayc->events.reparent, &view->container_reparent);
view->container_reparent.notify = view_handle_container_reparent;
arrange_children_of(cont->parent);
input_manager_set_focus(input_manager, cont);
container_damage_whole(cont);
view_handle_container_reparent(&view->container_reparent, NULL);
view_execute_criteria(view);
}
void view_unmap(struct sway_view *view) {
if (!sway_assert(view->surface != NULL, "cannot unmap unmapped view")) {
return;
}
wl_signal_emit(&view->events.unmap, view);
if (view->is_fullscreen) {
struct sway_container *ws = container_parent(view->swayc, C_WORKSPACE);
ws->sway_workspace->fullscreen = NULL;
}
container_damage_whole(view->swayc);
wl_list_remove(&view->surface_new_subsurface.link);
wl_list_remove(&view->container_reparent.link);
struct sway_container *parent = container_destroy(view->swayc);
view->swayc = NULL;
view->surface = NULL;
if (view->title_format) {
free(view->title_format);
view->title_format = NULL;
}
if (parent->type == C_OUTPUT) {
arrange_output(parent);
} else {
arrange_children_of(parent);
}
}
void view_update_position(struct sway_view *view, double ox, double oy) {
if (view->swayc->x == ox && view->swayc->y == oy) {
return;
}
// TODO: Only allow this if the view is floating (this function will only be
// called in response to wayland clients wanting to reposition themselves).
container_damage_whole(view->swayc);
view->swayc->x = ox;
view->swayc->y = oy;
container_damage_whole(view->swayc);
}
void view_update_size(struct sway_view *view, int width, int height) {
if (view->width == width && view->height == height) {
return;
}
container_damage_whole(view->swayc);
// Should we update the swayc width/height here too?
view->width = width;
view->height = height;
container_damage_whole(view->swayc);
}
static void view_subsurface_create(struct sway_view *view,
struct wlr_subsurface *subsurface) {
struct sway_view_child *child = calloc(1, sizeof(struct sway_view_child));
if (child == NULL) {
wlr_log(L_ERROR, "Allocation failed");
return;
}
view_child_init(child, NULL, view, subsurface->surface);
}
static void view_child_handle_surface_commit(struct wl_listener *listener,
void *data) {
struct sway_view_child *child =
wl_container_of(listener, child, surface_commit);
// TODO: only accumulate damage from the child
view_damage_from(child->view);
}
static void view_child_handle_surface_new_subsurface(
struct wl_listener *listener, void *data) {
struct sway_view_child *child =
wl_container_of(listener, child, surface_new_subsurface);
struct wlr_subsurface *subsurface = data;
view_subsurface_create(child->view, subsurface);
}
static void view_child_handle_surface_destroy(struct wl_listener *listener,
void *data) {
struct sway_view_child *child =
wl_container_of(listener, child, surface_destroy);
view_child_destroy(child);
}
static void view_child_handle_view_unmap(struct wl_listener *listener,
void *data) {
struct sway_view_child *child =
wl_container_of(listener, child, view_unmap);
view_child_destroy(child);
}
static void view_init_subsurfaces(struct sway_view *view,
struct wlr_surface *surface) {
struct wlr_subsurface *subsurface;
wl_list_for_each(subsurface, &surface->subsurfaces, parent_link) {
view_subsurface_create(view, subsurface);
}
}
void view_child_init(struct sway_view_child *child,
const struct sway_view_child_impl *impl, struct sway_view *view,
struct wlr_surface *surface) {
child->impl = impl;
child->view = view;
child->surface = surface;
wl_signal_add(&surface->events.commit, &child->surface_commit);
child->surface_commit.notify = view_child_handle_surface_commit;
wl_signal_add(&surface->events.new_subsurface,
&child->surface_new_subsurface);
child->surface_new_subsurface.notify =
view_child_handle_surface_new_subsurface;
wl_signal_add(&surface->events.destroy, &child->surface_destroy);
child->surface_destroy.notify = view_child_handle_surface_destroy;
wl_signal_add(&view->events.unmap, &child->view_unmap);
child->view_unmap.notify = view_child_handle_view_unmap;
struct sway_container *output = child->view->swayc->parent;
if (output != NULL) {
if (output->type != C_OUTPUT) {
output = container_parent(output, C_OUTPUT);
}
wlr_surface_send_enter(child->surface, output->sway_output->wlr_output);
}
view_init_subsurfaces(child->view, surface);
// TODO: only damage the whole child
if (child->view->swayc) {
container_damage_whole(child->view->swayc);
}
}
void view_child_destroy(struct sway_view_child *child) {
// TODO: only damage the whole child
if (child->view->swayc) {
container_damage_whole(child->view->swayc);
}
wl_list_remove(&child->surface_commit.link);
wl_list_remove(&child->surface_destroy.link);
wl_list_remove(&child->view_unmap.link);
if (child->impl && child->impl->destroy) {
child->impl->destroy(child);
} else {
free(child);
}
}
/**
* Calculate and return the length of the formatted title.
* If buffer is not NULL, also populate the buffer with the formatted title.
*/
static size_t parse_title_format(struct sway_view *view, char *buffer) {
if (!view->title_format || strcmp(view->title_format, "%title") == 0) {
const char *title = view_get_title(view);
if (buffer && title) {
strcpy(buffer, title);
}
return title ? strlen(title) : 0;
}
const char *title = view_get_title(view);
const char *class = view_get_class(view);
const char *instance = view_get_instance(view);
const char *shell = view_get_type(view);
size_t title_len = title ? strlen(title) : 0;
size_t class_len = class ? strlen(class) : 0;
size_t instance_len = instance ? strlen(instance) : 0;
size_t shell_len = shell ? strlen(shell) : 0;
size_t len = 0;
char *format = view->title_format;
char *next = strchr(format, '%');
while (next) {
if (buffer) {
// Copy everything up to the %
strncat(buffer, format, next - format);
}
len += next - format;
format = next;
if (strncmp(next, "%title", 6) == 0) {
if (buffer && title) {
strcat(buffer, title);
}
len += title_len;
format += 6;
} else if (strncmp(next, "%class", 6) == 0) {
if (buffer && class) {
strcat(buffer, class);
}
len += class_len;
format += 6;
} else if (strncmp(next, "%instance", 9) == 0) {
if (buffer && instance) {
strcat(buffer, instance);
}
len += instance_len;
format += 9;
} else if (strncmp(next, "%shell", 6) == 0) {
if (buffer) {
strcat(buffer, shell);
}
len += shell_len;
format += 6;
} else {
if (buffer) {
strcat(buffer, "%");
}
++format;
++len;
}
next = strchr(format, '%');
}
if (buffer) {
strcat(buffer, format);
}
len += strlen(format);
return len;
}
void view_update_title(struct sway_view *view, bool force) {
if (!view->swayc) {
return;
}
const char *title = view_get_title(view);
if (!force) {
if (title && view->swayc->name && strcmp(title, view->swayc->name) == 0) {
return;
}
if (!title && !view->swayc->name) {
return;
}
}
free(view->swayc->name);
free(view->swayc->formatted_title);
if (title) {
size_t len = parse_title_format(view, NULL);
char *buffer = calloc(len + 1, 1);
if (!sway_assert(buffer, "Unable to allocate title string")) {
return;
}
parse_title_format(view, buffer);
view->swayc->name = strdup(title);
view->swayc->formatted_title = buffer;
} else {
view->swayc->name = NULL;
view->swayc->formatted_title = NULL;
}
container_calculate_title_height(view->swayc);
container_update_title_textures(view->swayc);
container_notify_child_title_changed(view->swayc->parent);
config_update_font_height(false);
}