swayfx/sway/tree/view.c
Pedro Côrte-Real d0233af3b3 Rework gaps code to be simpler and correct
Instead of tracking gaps per child apply gaps in two logical places:

1. In tiled containers use the layout code to add the gaps between
windows. This is much simpler and guarantees that the sizing of children
is correct.
2. In the workspace itself apply all the gaps around the edge. Here
we're in the correct position to size inner and outer gaps correctly and
decide on smart gaps in a single location.

Fixes #4296
2019-07-15 23:46:27 -04:00

1178 lines
34 KiB
C

#define _POSIX_C_SOURCE 200809L
#include <stdlib.h>
#include <strings.h>
#include <wayland-server.h>
#include <wlr/render/wlr_renderer.h>
#include <wlr/types/wlr_buffer.h>
#include <wlr/types/wlr_output_layout.h>
#include <wlr/types/wlr_server_decoration.h>
#include <wlr/types/wlr_xdg_decoration_v1.h>
#include "config.h"
#if HAVE_XWAYLAND
#include <wlr/xwayland.h>
#endif
#include "list.h"
#include "log.h"
#include "sway/criteria.h"
#include "sway/commands.h"
#include "sway/desktop.h"
#include "sway/desktop/transaction.h"
#include "sway/input/cursor.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/view.h"
#include "sway/tree/workspace.h"
#include "sway/config.h"
#include "sway/xdg_decoration.h"
#include "pango.h"
#include "stringop.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;
view->executed_criteria = create_list();
view->allow_request_urgent = true;
wl_signal_init(&view->events.unmap);
}
void view_destroy(struct sway_view *view) {
if (!sway_assert(view->surface == NULL, "Tried to free mapped view")) {
return;
}
if (!sway_assert(view->destroying,
"Tried to free view which wasn't marked as destroying")) {
return;
}
if (!sway_assert(view->container == NULL,
"Tried to free view which still has a container "
"(might have a pending transaction?)")) {
return;
}
list_free(view->executed_criteria);
free(view->title_format);
if (view->impl->destroy) {
view->impl->destroy(view);
} else {
free(view);
}
}
void view_begin_destroy(struct sway_view *view) {
if (!sway_assert(view->surface == NULL, "Tried to destroy a mapped view")) {
return;
}
view->destroying = true;
if (!view->container) {
view_destroy(view);
}
}
const char *view_get_title(struct sway_view *view) {
if (view->impl->get_string_prop) {
return view->impl->get_string_prop(view, VIEW_PROP_TITLE);
}
return NULL;
}
const char *view_get_app_id(struct sway_view *view) {
if (view->impl->get_string_prop) {
return view->impl->get_string_prop(view, VIEW_PROP_APP_ID);
}
return NULL;
}
const char *view_get_class(struct sway_view *view) {
if (view->impl->get_string_prop) {
return view->impl->get_string_prop(view, VIEW_PROP_CLASS);
}
return NULL;
}
const char *view_get_instance(struct sway_view *view) {
if (view->impl->get_string_prop) {
return view->impl->get_string_prop(view, VIEW_PROP_INSTANCE);
}
return NULL;
}
#if HAVE_XWAYLAND
uint32_t view_get_x11_window_id(struct sway_view *view) {
if (view->impl->get_int_prop) {
return view->impl->get_int_prop(view, VIEW_PROP_X11_WINDOW_ID);
}
return 0;
}
uint32_t view_get_x11_parent_id(struct sway_view *view) {
if (view->impl->get_int_prop) {
return view->impl->get_int_prop(view, VIEW_PROP_X11_PARENT_ID);
}
return 0;
}
#endif
const char *view_get_window_role(struct sway_view *view) {
if (view->impl->get_string_prop) {
return view->impl->get_string_prop(view, VIEW_PROP_WINDOW_ROLE);
}
return NULL;
}
uint32_t view_get_window_type(struct sway_view *view) {
if (view->impl->get_int_prop) {
return view->impl->get_int_prop(view, VIEW_PROP_WINDOW_TYPE);
}
return 0;
}
const char *view_get_shell(struct sway_view *view) {
switch(view->type) {
case SWAY_VIEW_XDG_SHELL_V6:
return "xdg_shell_v6";
case SWAY_VIEW_XDG_SHELL:
return "xdg_shell";
#if HAVE_XWAYLAND
case SWAY_VIEW_XWAYLAND:
return "xwayland";
#endif
}
return "unknown";
}
void view_get_constraints(struct sway_view *view, double *min_width,
double *max_width, double *min_height, double *max_height) {
if (view->impl->get_constraints) {
view->impl->get_constraints(view,
min_width, max_width, min_height, max_height);
} else {
*min_width = DBL_MIN;
*max_width = DBL_MAX;
*min_height = DBL_MIN;
*max_height = DBL_MAX;
}
}
uint32_t view_configure(struct sway_view *view, double lx, double ly, int width,
int height) {
if (view->impl->configure) {
return view->impl->configure(view, lx, ly, width, height);
}
return 0;
}
bool view_is_only_visible(struct sway_view *view) {
bool only_view = true;
struct sway_container *con = view->container;
while (con) {
enum sway_container_layout layout = container_parent_layout(con);
if (layout != L_TABBED && layout != L_STACKED) {
list_t *siblings = container_get_siblings(con);
if (siblings && siblings->length > 1) {
only_view = false;
break;
}
}
con = con->parent;
}
return only_view;
}
static bool gaps_to_edge(struct sway_view *view) {
struct side_gaps gaps = view->container->workspace->current_gaps;
return gaps.top > 0 || gaps.right > 0 || gaps.bottom > 0 || gaps.left > 0;
}
void view_autoconfigure(struct sway_view *view) {
struct sway_container *con = view->container;
struct sway_workspace *ws = con->workspace;
if (container_is_scratchpad_hidden(con) &&
con->fullscreen_mode != FULLSCREEN_GLOBAL) {
return;
}
struct sway_output *output = ws ? ws->output : NULL;
if (con->fullscreen_mode == FULLSCREEN_WORKSPACE) {
con->content_x = output->lx;
con->content_y = output->ly;
con->content_width = output->width;
con->content_height = output->height;
return;
} else if (con->fullscreen_mode == FULLSCREEN_GLOBAL) {
con->content_x = root->x;
con->content_y = root->y;
con->content_width = root->width;
con->content_height = root->height;
return;
}
con->border_top = con->border_bottom = true;
con->border_left = con->border_right = true;
double y_offset = 0;
if (!container_is_floating(con) && ws) {
bool smart = config->hide_edge_borders == E_SMART ||
(config->hide_edge_borders == E_SMART_NO_GAPS &&
!gaps_to_edge(view));
bool hide_smart = smart && view_is_only_visible(view);
if (config->hide_edge_borders == E_BOTH
|| config->hide_edge_borders == E_VERTICAL || hide_smart) {
con->border_left = con->x != ws->x;
int right_x = con->x + con->width;
con->border_right = right_x != ws->x + ws->width;
}
if (config->hide_edge_borders == E_BOTH
|| config->hide_edge_borders == E_HORIZONTAL || hide_smart) {
con->border_top = con->y != ws->y;
int bottom_y = con->y + con->height;
con->border_bottom = bottom_y != ws->y + ws->height;
}
// In a tabbed or stacked container, the container's y is the top of the
// title area. We have to offset the surface y by the height of the title,
// bar, and disable any top border because we'll always have the title bar.
list_t *siblings = container_get_siblings(con);
bool show_titlebar = (siblings && siblings->length > 1)
|| !config->hide_lone_tab;
if (show_titlebar) {
enum sway_container_layout layout = container_parent_layout(con);
if (layout == L_TABBED) {
y_offset = container_titlebar_height();
con->border_top = false;
} else if (layout == L_STACKED) {
y_offset = container_titlebar_height() * siblings->length;
con->border_top = false;
}
}
}
double x, y, width, height;
switch (con->border) {
default:
case B_CSD:
case B_NONE:
x = con->x;
y = con->y + y_offset;
width = con->width;
height = con->height - y_offset;
break;
case B_PIXEL:
x = con->x + con->border_thickness * con->border_left;
y = con->y + con->border_thickness * con->border_top + y_offset;
width = con->width
- con->border_thickness * con->border_left
- con->border_thickness * con->border_right;
height = con->height - y_offset
- con->border_thickness * con->border_top
- con->border_thickness * con->border_bottom;
break;
case B_NORMAL:
// Height is: 1px border + 3px pad + title height + 3px pad + 1px border
x = con->x + con->border_thickness * con->border_left;
width = con->width
- con->border_thickness * con->border_left
- con->border_thickness * con->border_right;
if (y_offset) {
y = con->y + y_offset;
height = con->height - y_offset
- con->border_thickness * con->border_bottom;
} else {
y = con->y + container_titlebar_height();
height = con->height - container_titlebar_height()
- con->border_thickness * con->border_bottom;
}
break;
}
con->content_x = x;
con->content_y = y;
con->content_width = width;
con->content_height = height;
}
void view_set_activated(struct sway_view *view, bool activated) {
if (view->impl->set_activated) {
view->impl->set_activated(view, activated);
}
}
void view_request_activate(struct sway_view *view) {
struct sway_workspace *ws = view->container->workspace;
if (!ws) { // hidden scratchpad container
return;
}
struct sway_seat *seat = input_manager_current_seat();
switch (config->focus_on_window_activation) {
case FOWA_SMART:
if (workspace_is_visible(ws)) {
seat_set_focus_container(seat, view->container);
} else {
view_set_urgent(view, true);
}
break;
case FOWA_URGENT:
view_set_urgent(view, true);
break;
case FOWA_FOCUS:
seat_set_focus_container(seat, view->container);
break;
case FOWA_NONE:
break;
}
}
void view_set_csd_from_server(struct sway_view *view, bool enabled) {
sway_log(SWAY_DEBUG, "Telling view %p to set CSD to %i", view, enabled);
if (view->xdg_decoration) {
uint32_t mode = enabled ?
WLR_XDG_TOPLEVEL_DECORATION_V1_MODE_CLIENT_SIDE :
WLR_XDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE;
wlr_xdg_toplevel_decoration_v1_set_mode(
view->xdg_decoration->wlr_xdg_decoration, mode);
}
view->using_csd = enabled;
}
void view_update_csd_from_client(struct sway_view *view, bool enabled) {
sway_log(SWAY_DEBUG, "View %p updated CSD to %i", view, enabled);
struct sway_container *con = view->container;
if (enabled && con && con->border != B_CSD) {
con->saved_border = con->border;
if (container_is_floating(con)) {
con->border = B_CSD;
}
} else if (!enabled && con && con->border == B_CSD) {
con->border = con->saved_border;
}
view->using_csd = enabled;
}
void view_set_tiled(struct sway_view *view, bool tiled) {
if (view->impl->set_tiled) {
view->impl->set_tiled(view, tiled);
}
}
void view_close(struct sway_view *view) {
if (view->impl->close) {
view->impl->close(view);
}
}
void view_close_popups(struct sway_view *view) {
if (view->impl->close_popups) {
view->impl->close_popups(view);
}
}
void view_damage_from(struct sway_view *view) {
for (int i = 0; i < root->outputs->length; ++i) {
struct sway_output *output = root->outputs->items[i];
output_damage_from_view(output, view);
}
}
void view_for_each_surface(struct sway_view *view,
wlr_surface_iterator_func_t iterator, void *user_data) {
if (!view->surface) {
return;
}
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);
}
}
void view_for_each_popup(struct sway_view *view,
wlr_surface_iterator_func_t iterator, void *user_data) {
if (!view->surface) {
return;
}
if (view->impl->for_each_popup) {
view->impl->for_each_popup(view, 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 bool view_has_executed_criteria(struct sway_view *view,
struct criteria *criteria) {
for (int i = 0; i < view->executed_criteria->length; ++i) {
struct criteria *item = view->executed_criteria->items[i];
if (item == criteria) {
return true;
}
}
return false;
}
void view_execute_criteria(struct sway_view *view) {
list_t *criterias = criteria_for_view(view, CT_COMMAND);
for (int i = 0; i < criterias->length; i++) {
struct criteria *criteria = criterias->items[i];
sway_log(SWAY_DEBUG, "Checking criteria %s", criteria->raw);
if (view_has_executed_criteria(view, criteria)) {
sway_log(SWAY_DEBUG, "Criteria already executed");
continue;
}
sway_log(SWAY_DEBUG, "for_window '%s' matches view %p, cmd: '%s'",
criteria->raw, view, criteria->cmdlist);
list_add(view->executed_criteria, criteria);
list_t *res_list = execute_command(
criteria->cmdlist, NULL, view->container);
while (res_list->length) {
struct cmd_results *res = res_list->items[0];
free_cmd_results(res);
list_del(res_list, 0);
}
list_free(res_list);
}
list_free(criterias);
}
static struct sway_workspace *select_workspace(struct sway_view *view) {
struct sway_seat *seat = input_manager_current_seat();
// Check if there's any `assign` criteria for the view
list_t *criterias = criteria_for_view(view,
CT_ASSIGN_WORKSPACE | CT_ASSIGN_WORKSPACE_NUMBER | CT_ASSIGN_OUTPUT);
struct sway_workspace *ws = NULL;
for (int i = 0; i < criterias->length; ++i) {
struct criteria *criteria = criterias->items[i];
if (criteria->type == CT_ASSIGN_OUTPUT) {
struct sway_output *output = output_by_name_or_id(criteria->target);
if (output) {
ws = output_get_active_workspace(output);
break;
}
} else {
// CT_ASSIGN_WORKSPACE(_NUMBER)
ws = criteria->type == CT_ASSIGN_WORKSPACE_NUMBER ?
workspace_by_number(criteria->target) :
workspace_by_name(criteria->target);
if (!ws) {
if (strcasecmp(criteria->target, "back_and_forth") == 0) {
if (seat->prev_workspace_name) {
ws = workspace_create(NULL, seat->prev_workspace_name);
}
} else {
ws = workspace_create(NULL, criteria->target);
}
}
break;
}
}
list_free(criterias);
if (ws) {
return ws;
}
// Check if there's a PID mapping
pid_t pid;
#if HAVE_XWAYLAND
if (view->type == SWAY_VIEW_XWAYLAND) {
struct wlr_xwayland_surface *surf =
wlr_xwayland_surface_from_wlr_surface(view->surface);
pid = surf->pid;
} else {
struct wl_client *client =
wl_resource_get_client(view->surface->resource);
wl_client_get_credentials(client, &pid, NULL, NULL);
}
#else
struct wl_client *client =
wl_resource_get_client(view->surface->resource);
wl_client_get_credentials(client, &pid, NULL, NULL);
#endif
view->pid = pid;
ws = root_workspace_for_pid(pid);
if (ws) {
return ws;
}
// Use the focused workspace
struct sway_node *node = seat_get_focus_inactive(seat, &root->node);
if (node && node->type == N_WORKSPACE) {
return node->sway_workspace;
} else if (node && node->type == N_CONTAINER) {
return node->sway_container->workspace;
}
// When there's no outputs connected, the above should match a workspace on
// the noop output.
sway_assert(false, "Expected to find a workspace");
return NULL;
}
static bool should_focus(struct sway_view *view) {
struct sway_seat *seat = input_manager_current_seat();
struct sway_container *prev_con = seat_get_focused_container(seat);
struct sway_workspace *prev_ws = seat_get_focused_workspace(seat);
struct sway_workspace *map_ws = view->container->workspace;
if (view->container->fullscreen_mode == FULLSCREEN_GLOBAL) {
return true;
}
// Views can only take focus if they are mapped into the active workspace
if (prev_ws != map_ws) {
return false;
}
// If the view is the only one in the focused workspace, it'll get focus
// regardless of any no_focus criteria.
if (!view->container->parent && !prev_con) {
size_t num_children = view->container->workspace->tiling->length +
view->container->workspace->floating->length;
if (num_children == 1) {
return true;
}
}
// Check no_focus criteria
list_t *criterias = criteria_for_view(view, CT_NO_FOCUS);
size_t len = criterias->length;
list_free(criterias);
return len == 0;
}
void view_map(struct sway_view *view, struct wlr_surface *wlr_surface,
bool fullscreen, struct wlr_output *fullscreen_output,
bool decoration) {
if (!sway_assert(view->surface == NULL, "cannot map mapped view")) {
return;
}
view->surface = wlr_surface;
// If there is a request to be opened fullscreen on a specific output, try
// to honor that request. Otherwise, fallback to assigns, pid mappings,
// focused workspace, etc
struct sway_workspace *ws = NULL;
if (fullscreen_output && fullscreen_output->data) {
struct sway_output *output = fullscreen_output->data;
ws = output_get_active_workspace(output);
}
if (!ws) {
ws = select_workspace(view);
}
struct sway_seat *seat = input_manager_current_seat();
struct sway_node *node = ws ? seat_get_focus_inactive(seat, &ws->node)
: seat_get_focus_inactive(seat, &root->node);
struct sway_container *target_sibling = node->type == N_CONTAINER ?
node->sway_container : NULL;
// If we're about to launch the view into the floating container, then
// launch it as a tiled view in the root of the workspace instead.
if (target_sibling && container_is_floating(target_sibling)) {
target_sibling = NULL;
ws = seat_get_last_known_workspace(seat);
}
view->container = container_create(view);
if (target_sibling) {
container_add_sibling(target_sibling, view->container, 1);
} else if (ws) {
workspace_add_tiling(ws, view->container);
}
ipc_event_window(view->container, "new");
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;
if (decoration) {
view_update_csd_from_client(view, decoration);
}
if (view->impl->wants_floating && view->impl->wants_floating(view)) {
view->container->border = config->floating_border;
view->container->border_thickness = config->floating_border_thickness;
container_set_floating(view->container, true);
} else {
view->container->border = config->border;
view->container->border_thickness = config->border_thickness;
view_set_tiled(view, true);
}
if (config->popup_during_fullscreen == POPUP_LEAVE &&
view->container->workspace &&
view->container->workspace->fullscreen &&
view->container->workspace->fullscreen->view) {
struct sway_container *fs = view->container->workspace->fullscreen;
if (view_is_transient_for(view, fs->view)) {
container_set_fullscreen(fs, false);
}
}
view_update_title(view, false);
container_update_representation(view->container);
if (fullscreen) {
container_set_fullscreen(view->container, true);
arrange_workspace(view->container->workspace);
} else {
if (view->container->parent) {
arrange_container(view->container->parent);
} else if (view->container->workspace) {
arrange_workspace(view->container->workspace);
}
}
view_execute_criteria(view);
if (should_focus(view)) {
input_manager_set_focus(&view->container->node);
}
}
void view_unmap(struct sway_view *view) {
wl_signal_emit(&view->events.unmap, view);
wl_list_remove(&view->surface_new_subsurface.link);
if (view->urgent_timer) {
wl_event_source_remove(view->urgent_timer);
view->urgent_timer = NULL;
}
struct sway_container *parent = view->container->parent;
struct sway_workspace *ws = view->container->workspace;
container_begin_destroy(view->container);
if (parent) {
container_reap_empty(parent);
} else if (ws) {
workspace_consider_destroy(ws);
}
if (root->fullscreen_global) {
// Container may have been a child of the root fullscreen container
arrange_root();
} else if (ws && !ws->node.destroying) {
arrange_workspace(ws);
workspace_detect_urgent(ws);
}
struct sway_seat *seat;
wl_list_for_each(seat, &server.input->seats, link) {
seat->cursor->image_surface = NULL;
if (seat->cursor->active_constraint) {
struct wlr_surface *constrain_surface =
seat->cursor->active_constraint->surface;
if (view_from_wlr_surface(constrain_surface) == view) {
sway_cursor_constrain(seat->cursor, NULL);
}
}
seat_consider_warp_to_focus(seat);
}
transaction_commit_dirty();
view->surface = NULL;
}
void view_update_size(struct sway_view *view, int width, int height) {
struct sway_container *con = view->container;
if (container_is_floating(con)) {
con->content_width = width;
con->content_height = height;
con->current.content_width = width;
con->current.content_height = height;
container_set_geometry_from_content(con);
} else {
con->surface_x = con->content_x + (con->content_width - width) / 2;
con->surface_y = con->content_y + (con->content_height - height) / 2;
con->surface_x = fmax(con->surface_x, con->content_x);
con->surface_y = fmax(con->surface_y, con->content_y);
}
con->surface_width = width;
con->surface_width = height;
}
static const struct sway_view_child_impl subsurface_impl;
static void subsurface_get_root_coords(struct sway_view_child *child,
int *root_sx, int *root_sy) {
struct wlr_surface *surface = child->surface;
*root_sx = -child->view->geometry.x;
*root_sy = -child->view->geometry.y;
if (child->parent && child->parent->impl &&
child->parent->impl->get_root_coords) {
int sx, sy;
child->parent->impl->get_root_coords(child->parent, &sx, &sy);
*root_sx += sx;
*root_sy += sy;
} else {
while (surface && wlr_surface_is_subsurface(surface)) {
struct wlr_subsurface *subsurface =
wlr_subsurface_from_wlr_surface(surface);
if (subsurface == NULL) {
break;
}
*root_sx += subsurface->current.x;
*root_sy += subsurface->current.y;
surface = subsurface->parent;
}
}
}
static void subsurface_destroy(struct sway_view_child *child) {
if (!sway_assert(child->impl == &subsurface_impl,
"Expected a subsurface")) {
return;
}
struct sway_subsurface *subsurface = (struct sway_subsurface *)child;
wl_list_remove(&subsurface->destroy.link);
free(subsurface);
}
static const struct sway_view_child_impl subsurface_impl = {
.get_root_coords = subsurface_get_root_coords,
.destroy = subsurface_destroy,
};
static void subsurface_handle_destroy(struct wl_listener *listener,
void *data) {
struct sway_subsurface *subsurface =
wl_container_of(listener, subsurface, destroy);
struct sway_view_child *child = &subsurface->child;
view_child_destroy(child);
}
static void view_child_damage(struct sway_view_child *child, bool whole);
static void view_subsurface_create(struct sway_view *view,
struct wlr_subsurface *wlr_subsurface) {
struct sway_subsurface *subsurface =
calloc(1, sizeof(struct sway_subsurface));
if (subsurface == NULL) {
sway_log(SWAY_ERROR, "Allocation failed");
return;
}
view_child_init(&subsurface->child, &subsurface_impl, view,
wlr_subsurface->surface);
wl_signal_add(&wlr_subsurface->events.destroy, &subsurface->destroy);
subsurface->destroy.notify = subsurface_handle_destroy;
subsurface->child.mapped = true;
view_child_damage(&subsurface->child, true);
}
static void view_child_subsurface_create(struct sway_view_child *child,
struct wlr_subsurface *wlr_subsurface) {
struct sway_subsurface *subsurface =
calloc(1, sizeof(struct sway_subsurface));
if (subsurface == NULL) {
sway_log(SWAY_ERROR, "Allocation failed");
return;
}
subsurface->child.parent = child;
wl_list_insert(&child->children, &subsurface->child.link);
view_child_init(&subsurface->child, &subsurface_impl, child->view,
wlr_subsurface->surface);
wl_signal_add(&wlr_subsurface->events.destroy, &subsurface->destroy);
subsurface->destroy.notify = subsurface_handle_destroy;
subsurface->child.mapped = true;
view_child_damage(&subsurface->child, true);
}
static void view_child_damage(struct sway_view_child *child, bool whole) {
if (!child || !child->mapped || !child->view || !child->view->container) {
return;
}
int sx, sy;
child->impl->get_root_coords(child, &sx, &sy);
desktop_damage_surface(child->surface,
child->view->container->content_x + sx,
child->view->container->content_y + sy, whole);
}
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);
view_child_damage(child, false);
}
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_child_subsurface_create(child, 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_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);
}
}
static void view_child_handle_surface_map(struct wl_listener *listener,
void *data) {
struct sway_view_child *child =
wl_container_of(listener, child, surface_map);
child->mapped = true;
view_child_damage(child, true);
}
static void view_child_handle_surface_unmap(struct wl_listener *listener,
void *data) {
struct sway_view_child *child =
wl_container_of(listener, child, surface_unmap);
view_child_damage(child, true);
child->mapped = false;
}
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_damage(child, true);
child->mapped = false;
}
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_list_init(&child->children);
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;
// Not all child views have a map/unmap event
child->surface_map.notify = view_child_handle_surface_map;
child->surface_unmap.notify = view_child_handle_surface_unmap;
wl_signal_add(&view->events.unmap, &child->view_unmap);
child->view_unmap.notify = view_child_handle_view_unmap;
struct sway_output *output = child->view->container->workspace->output;
wlr_surface_send_enter(child->surface, output->wlr_output);
view_init_subsurfaces(child->view, surface);
}
void view_child_destroy(struct sway_view_child *child) {
if (child->mapped && child->view->container != NULL) {
view_child_damage(child, true);
}
if (child->parent != NULL) {
wl_list_remove(&child->link);
child->parent = NULL;
}
struct sway_view_child *subchild, *tmpchild;
wl_list_for_each_safe(subchild, tmpchild, &child->children, link) {
wl_list_remove(&subchild->link);
subchild->parent = NULL;
}
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);
}
}
struct sway_view *view_from_wlr_surface(struct wlr_surface *wlr_surface) {
if (wlr_surface_is_xdg_surface(wlr_surface)) {
struct wlr_xdg_surface *xdg_surface =
wlr_xdg_surface_from_wlr_surface(wlr_surface);
return view_from_wlr_xdg_surface(xdg_surface);
}
if (wlr_surface_is_xdg_surface_v6(wlr_surface)) {
struct wlr_xdg_surface_v6 *xdg_surface_v6 =
wlr_xdg_surface_v6_from_wlr_surface(wlr_surface);
return view_from_wlr_xdg_surface_v6(xdg_surface_v6);
}
#if HAVE_XWAYLAND
if (wlr_surface_is_xwayland_surface(wlr_surface)) {
struct wlr_xwayland_surface *xsurface =
wlr_xwayland_surface_from_wlr_surface(wlr_surface);
return view_from_wlr_xwayland_surface(xsurface);
}
#endif
if (wlr_surface_is_subsurface(wlr_surface)) {
struct wlr_subsurface *subsurface =
wlr_subsurface_from_wlr_surface(wlr_surface);
return view_from_wlr_surface(subsurface->parent);
}
if (wlr_surface_is_layer_surface(wlr_surface)) {
return NULL;
}
const char *role = wlr_surface->role ? wlr_surface->role->name : NULL;
sway_log(SWAY_DEBUG, "Surface of unknown type (role %s): %p",
role, wlr_surface);
return NULL;
}
static char *escape_pango_markup(const char *buffer) {
size_t length = escape_markup_text(buffer, NULL);
char *escaped_title = calloc(length + 1, sizeof(char));
escape_markup_text(buffer, escaped_title);
return escaped_title;
}
static size_t append_prop(char *buffer, const char *value) {
if (!value) {
return 0;
}
// If using pango_markup in font, we need to escape all markup chars
// from values to make sure tags are not inserted by clients
if (config->pango_markup) {
char *escaped_value = escape_pango_markup(value);
lenient_strcat(buffer, escaped_value);
size_t len = strlen(escaped_value);
free(escaped_value);
return len;
} else {
lenient_strcat(buffer, value);
return strlen(value);
}
}
/**
* 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) {
return append_prop(buffer, view_get_title(view));
}
size_t len = 0;
char *format = view->title_format;
char *next = strchr(format, '%');
while (next) {
// Copy everything up to the %
lenient_strncat(buffer, format, next - format);
len += next - format;
format = next;
if (strncmp(next, "%title", 6) == 0) {
len += append_prop(buffer, view_get_title(view));
format += 6;
} else if (strncmp(next, "%app_id", 7) == 0) {
len += append_prop(buffer, view_get_app_id(view));
format += 7;
} else if (strncmp(next, "%class", 6) == 0) {
len += append_prop(buffer, view_get_class(view));
format += 6;
} else if (strncmp(next, "%instance", 9) == 0) {
len += append_prop(buffer, view_get_instance(view));
format += 9;
} else if (strncmp(next, "%shell", 6) == 0) {
len += append_prop(buffer, view_get_shell(view));
format += 6;
} else {
lenient_strcat(buffer, "%");
++format;
++len;
}
next = strchr(format, '%');
}
lenient_strcat(buffer, format);
len += strlen(format);
return len;
}
void view_update_title(struct sway_view *view, bool force) {
const char *title = view_get_title(view);
if (!force) {
if (title && view->container->title &&
strcmp(title, view->container->title) == 0) {
return;
}
if (!title && !view->container->title) {
return;
}
}
free(view->container->title);
free(view->container->formatted_title);
if (title) {
size_t len = parse_title_format(view, NULL);
char *buffer = calloc(len + 1, sizeof(char));
if (!sway_assert(buffer, "Unable to allocate title string")) {
return;
}
parse_title_format(view, buffer);
view->container->title = strdup(title);
view->container->formatted_title = buffer;
} else {
view->container->title = NULL;
view->container->formatted_title = NULL;
}
container_calculate_title_height(view->container);
config_update_font_height(false);
// Update title after the global font height is updated
container_update_title_textures(view->container);
ipc_event_window(view->container, "title");
}
bool view_is_visible(struct sway_view *view) {
if (view->container->node.destroying) {
return false;
}
struct sway_workspace *workspace = view->container->workspace;
if (!workspace && view->container->fullscreen_mode != FULLSCREEN_GLOBAL) {
bool fs_global_descendant = false;
struct sway_container *parent = view->container->parent;
while (parent) {
if (parent->fullscreen_mode == FULLSCREEN_GLOBAL) {
fs_global_descendant = true;
}
parent = parent->parent;
}
if (!fs_global_descendant) {
return false;
}
}
// Determine if view is nested inside a floating container which is sticky
struct sway_container *floater = view->container;
while (floater->parent) {
floater = floater->parent;
}
bool is_sticky = container_is_floating(floater) && floater->is_sticky;
if (!is_sticky && workspace && !workspace_is_visible(workspace)) {
return false;
}
// Check view isn't in a tabbed or stacked container on an inactive tab
struct sway_seat *seat = input_manager_current_seat();
struct sway_container *con = view->container;
while (con) {
enum sway_container_layout layout = container_parent_layout(con);
if ((layout == L_TABBED || layout == L_STACKED)
&& !container_is_floating(con)) {
struct sway_node *parent = con->parent ?
&con->parent->node : &con->workspace->node;
if (seat_get_active_tiling_child(seat, parent) != &con->node) {
return false;
}
}
con = con->parent;
}
// Check view isn't hidden by another fullscreen view
struct sway_container *fs = root->fullscreen_global ?
root->fullscreen_global : workspace->fullscreen;
if (fs && !container_is_fullscreen_or_child(view->container) &&
!container_is_transient_for(view->container, fs)) {
return false;
}
return true;
}
void view_set_urgent(struct sway_view *view, bool enable) {
if (view_is_urgent(view) == enable) {
return;
}
if (enable) {
struct sway_seat *seat = input_manager_current_seat();
if (seat_get_focused_container(seat) == view->container) {
return;
}
clock_gettime(CLOCK_MONOTONIC, &view->urgent);
} else {
view->urgent = (struct timespec){ 0 };
if (view->urgent_timer) {
wl_event_source_remove(view->urgent_timer);
view->urgent_timer = NULL;
}
}
container_damage_whole(view->container);
ipc_event_window(view->container, "urgent");
if (!container_is_scratchpad_hidden(view->container)) {
workspace_detect_urgent(view->container->workspace);
}
}
bool view_is_urgent(struct sway_view *view) {
return view->urgent.tv_sec || view->urgent.tv_nsec;
}
void view_remove_saved_buffer(struct sway_view *view) {
if (!sway_assert(view->saved_buffer, "Expected a saved buffer")) {
return;
}
wlr_buffer_unref(view->saved_buffer);
view->saved_buffer = NULL;
}
void view_save_buffer(struct sway_view *view) {
if (!sway_assert(!view->saved_buffer, "Didn't expect saved buffer")) {
view_remove_saved_buffer(view);
}
if (view->surface && wlr_surface_has_buffer(view->surface)) {
view->saved_buffer = wlr_buffer_ref(view->surface->buffer);
view->saved_buffer_width = view->surface->current.width;
view->saved_buffer_height = view->surface->current.height;
}
}
bool view_is_transient_for(struct sway_view *child,
struct sway_view *ancestor) {
return child->impl->is_transient_for &&
child->impl->is_transient_for(child, ancestor);
}