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/*
* Copyright © 2016 Quentin "Sardem FF7" Glidic
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include "config.h"
#include <string.h>
#include <assert.h>
#include <wayland-server.h>
#include <libweston/libweston.h>
#include <libweston/zalloc.h>
#include "libweston-desktop.h"
#include "internal.h"
struct weston_desktop_view {
struct wl_list link;
struct weston_view *view;
struct weston_desktop_view *parent;
struct wl_list children_list;
struct wl_list children_link;
};
struct weston_desktop_surface {
struct weston_desktop *desktop;
struct weston_desktop_client *client;
struct wl_list client_link;
const struct weston_desktop_surface_implementation *implementation;
void *implementation_data;
void *user_data;
struct weston_surface *surface;
struct wl_list view_list;
struct weston_position buffer_move;
struct wl_listener surface_commit_listener;
struct wl_listener surface_destroy_listener;
struct wl_listener client_destroy_listener;
struct wl_list children_list;
struct wl_list resource_list;
bool has_geometry;
struct weston_geometry geometry;
struct {
char *title;
char *app_id;
pid_t pid;
struct wl_signal metadata_signal;
};
struct {
struct weston_desktop_surface *parent;
struct wl_list children_link;
struct weston_position position;
bool use_geometry;
};
struct {
struct wl_list grab_link;
};
};
static void
weston_desktop_surface_update_view_position(struct weston_desktop_surface *surface)
{
struct weston_desktop_view *view;
int32_t x, y;
x = surface->position.x;
y = surface->position.y;
if (surface->use_geometry) {
struct weston_desktop_surface *parent =
weston_desktop_surface_get_parent(surface);
struct weston_geometry geometry, parent_geometry;
geometry = weston_desktop_surface_get_geometry(surface);
parent_geometry = weston_desktop_surface_get_geometry(parent);
x += parent_geometry.x - geometry.x;
y += parent_geometry.y - geometry.y;
}
wl_list_for_each(view, &surface->view_list, link)
weston_view_set_position(view->view, x, y);
}
static void
weston_desktop_view_propagate_layer(struct weston_desktop_view *view);
static void
weston_desktop_view_destroy(struct weston_desktop_view *view)
{
struct weston_desktop_view *child_view, *tmp;
wl_list_for_each_safe(child_view, tmp, &view->children_list, children_link)
weston_desktop_view_destroy(child_view);
wl_list_remove(&view->children_link);
wl_list_remove(&view->link);
weston_view_damage_below(view->view);
if (view->parent != NULL)
weston_view_destroy(view->view);
free(view);
}
void
weston_desktop_surface_destroy(struct weston_desktop_surface *surface)
{
struct weston_desktop_view *view, *next_view;
struct weston_desktop_surface *child, *next_child;
wl_list_remove(&surface->surface_commit_listener.link);
wl_list_remove(&surface->surface_destroy_listener.link);
wl_list_remove(&surface->client_destroy_listener.link);
if (!wl_list_empty(&surface->resource_list)) {
struct wl_resource *resource, *tmp;
wl_resource_for_each_safe(resource, tmp, &surface->resource_list) {
wl_resource_set_user_data(resource, NULL);
wl_list_remove(wl_resource_get_link(resource));
}
}
surface->implementation->destroy(surface, surface->implementation_data);
surface->surface->committed = NULL;
surface->surface->committed_private = NULL;
weston_desktop_surface_unset_relative_to(surface);
wl_list_remove(&surface->client_link);
wl_list_for_each_safe(child, next_child,
&surface->children_list,
children_link)
weston_desktop_surface_unset_relative_to(child);
wl_list_for_each_safe(view, next_view, &surface->view_list, link)
weston_desktop_view_destroy(view);
free(surface->title);
free(surface->app_id);
free(surface);
}
static void
weston_desktop_surface_surface_committed(struct wl_listener *listener,
void *data)
{
struct weston_desktop_surface *surface =
wl_container_of(listener, surface, surface_commit_listener);
if (surface->implementation->committed != NULL)
surface->implementation->committed(surface,
surface->implementation_data,
surface->buffer_move.x,
surface->buffer_move.y);
if (surface->parent != NULL) {
struct weston_desktop_view *view;
wl_list_for_each(view, &surface->view_list, link) {
weston_view_set_transform_parent(view->view,
view->parent->view);
weston_desktop_view_propagate_layer(view->parent);
}
weston_desktop_surface_update_view_position(surface);
}
if (!wl_list_empty(&surface->children_list)) {
struct weston_desktop_surface *child;
wl_list_for_each(child, &surface->children_list, children_link)
weston_desktop_surface_update_view_position(child);
}
surface->buffer_move.x = 0;
surface->buffer_move.y = 0;
}
static void
weston_desktop_surface_surface_destroyed(struct wl_listener *listener,
void *data)
{
struct weston_desktop_surface *surface =
wl_container_of(listener, surface, surface_destroy_listener);
weston_desktop_surface_destroy(surface);
}
void
weston_desktop_surface_resource_destroy(struct wl_resource *resource)
{
struct weston_desktop_surface *surface =
wl_resource_get_user_data(resource);
if (surface != NULL)
weston_desktop_surface_destroy(surface);
}
static void
weston_desktop_surface_committed(struct weston_surface *wsurface,
int32_t sx, int32_t sy)
{
struct weston_desktop_surface *surface = wsurface->committed_private;
surface->buffer_move.x = sx;
surface->buffer_move.y = sy;
}
static void
weston_desktop_surface_client_destroyed(struct wl_listener *listener,
void *data)
{
struct weston_desktop_surface *surface =
wl_container_of(listener, surface, client_destroy_listener);
weston_desktop_surface_destroy(surface);
}
struct weston_desktop_surface *
weston_desktop_surface_create(struct weston_desktop *desktop,
struct weston_desktop_client *client,
struct weston_surface *wsurface,
const struct weston_desktop_surface_implementation *implementation,
void *implementation_data)
{
assert(implementation->destroy != NULL);
struct weston_desktop_surface *surface;
surface = zalloc(sizeof(struct weston_desktop_surface));
if (surface == NULL) {
if (client != NULL)
wl_client_post_no_memory(weston_desktop_client_get_client(client));
return NULL;
}
surface->desktop = desktop;
surface->implementation = implementation;
surface->implementation_data = implementation_data;
surface->surface = wsurface;
surface->client = client;
surface->client_destroy_listener.notify =
weston_desktop_surface_client_destroyed;
weston_desktop_client_add_destroy_listener(
client, &surface->client_destroy_listener);
wsurface->committed = weston_desktop_surface_committed;
wsurface->committed_private = surface;
surface->pid = -1;
surface->surface_commit_listener.notify =
weston_desktop_surface_surface_committed;
wl_signal_add(&surface->surface->commit_signal,
&surface->surface_commit_listener);
surface->surface_destroy_listener.notify =
weston_desktop_surface_surface_destroyed;
wl_signal_add(&surface->surface->destroy_signal,
&surface->surface_destroy_listener);
wl_list_init(&surface->client_link);
wl_list_init(&surface->resource_list);
wl_list_init(&surface->children_list);
wl_list_init(&surface->children_link);
wl_list_init(&surface->view_list);
wl_list_init(&surface->grab_link);
wl_signal_init(&surface->metadata_signal);
return surface;
}
struct wl_resource *
weston_desktop_surface_add_resource(struct weston_desktop_surface *surface,
const struct wl_interface *interface,
const void *implementation, uint32_t id,
wl_resource_destroy_func_t destroy)
{
struct wl_resource *client_resource =
weston_desktop_client_get_resource(surface->client);
struct wl_client *wl_client =
weston_desktop_client_get_client(surface->client);
struct wl_resource *resource;
resource = wl_resource_create(wl_client,
interface,
wl_resource_get_version(client_resource),
id);
if (resource == NULL) {
wl_client_post_no_memory(wl_client);
weston_desktop_surface_destroy(surface);
return NULL;
}
if (destroy == NULL)
destroy = weston_desktop_surface_resource_destroy;
wl_resource_set_implementation(resource, implementation, surface, destroy);
wl_list_insert(&surface->resource_list, wl_resource_get_link(resource));
return resource;
}
struct weston_desktop_surface *
weston_desktop_surface_from_grab_link(struct wl_list *grab_link)
{
struct weston_desktop_surface *surface =
wl_container_of(grab_link, surface, grab_link);
return surface;
}
WL_EXPORT bool
weston_surface_is_desktop_surface(struct weston_surface *wsurface)
{
return wsurface->committed == weston_desktop_surface_committed;
}
WL_EXPORT struct weston_desktop_surface *
weston_surface_get_desktop_surface(struct weston_surface *wsurface)
{
if (!weston_surface_is_desktop_surface(wsurface))
return NULL;
return wsurface->committed_private;
}
WL_EXPORT void
weston_desktop_surface_set_user_data(struct weston_desktop_surface *surface,
void *user_data)
{
surface->user_data = user_data;
}
static struct weston_desktop_view *
weston_desktop_surface_create_desktop_view(struct weston_desktop_surface *surface)
{
struct wl_client *wl_client=
weston_desktop_client_get_client(surface->client);
struct weston_desktop_view *view, *child_view;
struct weston_view *wview;
struct weston_desktop_surface *child;
wview = weston_view_create(surface->surface);
if (wview == NULL) {
if (wl_client != NULL)
wl_client_post_no_memory(wl_client);
return NULL;
}
view = zalloc(sizeof(struct weston_desktop_view));
if (view == NULL) {
if (wl_client != NULL)
wl_client_post_no_memory(wl_client);
return NULL;
}
view->view = wview;
wl_list_init(&view->children_list);
wl_list_init(&view->children_link);
wl_list_insert(surface->view_list.prev, &view->link);
wl_list_for_each(child, &surface->children_list, children_link) {
child_view =
weston_desktop_surface_create_desktop_view(child);
if (child_view == NULL) {
weston_desktop_view_destroy(view);
return NULL;
}
child_view->parent = view;
wl_list_insert(view->children_list.prev,
&child_view->children_link);
}
return view;
}
WL_EXPORT struct weston_view *
weston_desktop_surface_create_view(struct weston_desktop_surface *surface)
{
struct weston_desktop_view *view;
view = weston_desktop_surface_create_desktop_view(surface);
if (view == NULL)
return NULL;
return view->view;
}
WL_EXPORT void
weston_desktop_surface_unlink_view(struct weston_view *wview)
{
struct weston_desktop_surface *surface;
struct weston_desktop_view *view;
if (!weston_surface_is_desktop_surface(wview->surface))
return;
surface = weston_surface_get_desktop_surface(wview->surface);
wl_list_for_each(view, &surface->view_list, link) {
if (view->view == wview) {
weston_desktop_view_destroy(view);
return;
}
}
}
static void
weston_desktop_view_propagate_layer(struct weston_desktop_view *view)
{
struct weston_desktop_view *child;
struct wl_list *link = &view->view->layer_link.link;
wl_list_for_each_reverse(child, &view->children_list, children_link) {
struct weston_layer_entry *prev =
wl_container_of(link->prev, prev, link);
if (prev == &child->view->layer_link)
continue;
child->view->is_mapped = true;
weston_view_damage_below(child->view);
weston_view_geometry_dirty(child->view);
weston_layer_entry_remove(&child->view->layer_link);
weston_layer_entry_insert(prev, &child->view->layer_link);
weston_view_geometry_dirty(child->view);
weston_surface_damage(child->view->surface);
weston_view_update_transform(child->view);
weston_desktop_view_propagate_layer(child);
}
}
WL_EXPORT void
weston_desktop_surface_propagate_layer(struct weston_desktop_surface *surface)
{
struct weston_desktop_view *view;
wl_list_for_each(view, &surface->view_list, link)
weston_desktop_view_propagate_layer(view);
}
WL_EXPORT void
weston_desktop_surface_set_activated(struct weston_desktop_surface *surface, bool activated)
{
if (surface->implementation->set_activated != NULL)
surface->implementation->set_activated(surface,
surface->implementation_data,
activated);
}
WL_EXPORT void
weston_desktop_surface_set_fullscreen(struct weston_desktop_surface *surface, bool fullscreen)
{
if (surface->implementation->set_fullscreen != NULL)
surface->implementation->set_fullscreen(surface,
surface->implementation_data,
fullscreen);
}
WL_EXPORT void
weston_desktop_surface_set_maximized(struct weston_desktop_surface *surface, bool maximized)
{
if (surface->implementation->set_maximized != NULL)
surface->implementation->set_maximized(surface,
surface->implementation_data,
maximized);
}
WL_EXPORT void
weston_desktop_surface_set_resizing(struct weston_desktop_surface *surface, bool resizing)
{
if (surface->implementation->set_resizing != NULL)
surface->implementation->set_resizing(surface,
surface->implementation_data,
resizing);
}
WL_EXPORT void
weston_desktop_surface_set_size(struct weston_desktop_surface *surface, int32_t width, int32_t height)
{
if (surface->implementation->set_size != NULL)
surface->implementation->set_size(surface,
surface->implementation_data,
width, height);
}
WL_EXPORT void
weston_desktop_surface_close(struct weston_desktop_surface *surface)
{
if (surface->implementation->close != NULL)
surface->implementation->close(surface,
surface->implementation_data);
}
WL_EXPORT void
weston_desktop_surface_add_metadata_listener(struct weston_desktop_surface *surface,
struct wl_listener *listener)
{
wl_signal_add(&surface->metadata_signal, listener);
}
struct weston_desktop_surface *
weston_desktop_surface_from_client_link(struct wl_list *link)
{
struct weston_desktop_surface *surface;
surface = wl_container_of(link, surface, client_link);
return surface;
}
struct wl_list *
weston_desktop_surface_get_client_link(struct weston_desktop_surface *surface)
{
return &surface->client_link;
}
bool
weston_desktop_surface_has_implementation(struct weston_desktop_surface *surface,
const struct weston_desktop_surface_implementation *implementation)
{
return surface->implementation == implementation;
}
const struct weston_desktop_surface_implementation *
weston_desktop_surface_get_implementation(struct weston_desktop_surface *surface)
{
return surface->implementation;
}
void *
weston_desktop_surface_get_implementation_data(struct weston_desktop_surface *surface)
{
return surface->implementation_data;
}
struct weston_desktop_surface *
weston_desktop_surface_get_parent(struct weston_desktop_surface *surface)
{
return surface->parent;
}
bool
weston_desktop_surface_get_grab(struct weston_desktop_surface *surface)
{
return !wl_list_empty(&surface->grab_link);
}
WL_EXPORT struct weston_desktop_client *
weston_desktop_surface_get_client(struct weston_desktop_surface *surface)
{
return surface->client;
}
WL_EXPORT void *
weston_desktop_surface_get_user_data(struct weston_desktop_surface *surface)
{
return surface->user_data;
}
WL_EXPORT struct weston_surface *
weston_desktop_surface_get_surface(struct weston_desktop_surface *surface)
{
return surface->surface;
}
WL_EXPORT const char *
weston_desktop_surface_get_title(struct weston_desktop_surface *surface)
{
return surface->title;
}
WL_EXPORT const char *
weston_desktop_surface_get_app_id(struct weston_desktop_surface *surface)
{
return surface->app_id;
}
WL_EXPORT pid_t
weston_desktop_surface_get_pid(struct weston_desktop_surface *surface)
{
pid_t pid;
if (surface->pid != -1) {
pid = surface->pid;
} else {
struct weston_desktop_client *client =
weston_desktop_surface_get_client(surface);
struct wl_client *wl_client =
weston_desktop_client_get_client(client);
/* wl_client should always be valid, because only in the
* xwayland case it wouldn't be, but in that case we won't
* reach here, as the pid is initialized to 0. */
assert(wl_client);
wl_client_get_credentials(wl_client, &pid, NULL, NULL);
}
return pid;
}
WL_EXPORT bool
weston_desktop_surface_get_activated(struct weston_desktop_surface *surface)
{
if (surface->implementation->get_activated == NULL)
return false;
return surface->implementation->get_activated(surface,
surface->implementation_data);
}
WL_EXPORT bool
weston_desktop_surface_get_resizing(struct weston_desktop_surface *surface)
{
if (surface->implementation->get_resizing == NULL)
return false;
return surface->implementation->get_resizing(surface,
surface->implementation_data);
}
WL_EXPORT bool
weston_desktop_surface_get_maximized(struct weston_desktop_surface *surface)
{
if (surface->implementation->get_maximized == NULL)
return false;
return surface->implementation->get_maximized(surface,
surface->implementation_data);
}
WL_EXPORT bool
weston_desktop_surface_get_fullscreen(struct weston_desktop_surface *surface)
{
if (surface->implementation->get_fullscreen == NULL)
return false;
return surface->implementation->get_fullscreen(surface,
surface->implementation_data);
}
WL_EXPORT struct weston_geometry
weston_desktop_surface_get_geometry(struct weston_desktop_surface *surface)
{
if (surface->has_geometry)
return surface->geometry;
return weston_surface_get_bounding_box(surface->surface);
}
WL_EXPORT struct weston_size
weston_desktop_surface_get_max_size(struct weston_desktop_surface *surface)
{
struct weston_size size = { 0, 0 };
if (surface->implementation->get_max_size == NULL)
return size;
return surface->implementation->get_max_size(surface,
surface->implementation_data);
}
WL_EXPORT struct weston_size
weston_desktop_surface_get_min_size(struct weston_desktop_surface *surface)
{
struct weston_size size = { 0, 0 };
if (surface->implementation->get_min_size == NULL)
return size;
return surface->implementation->get_min_size(surface,
surface->implementation_data);
}
void
weston_desktop_surface_set_title(struct weston_desktop_surface *surface,
const char *title)
{
char *tmp, *old;
tmp = strdup(title);
if (tmp == NULL)
return;
old = surface->title;
surface->title = tmp;
wl_signal_emit(&surface->metadata_signal, surface);
free(old);
}
void
weston_desktop_surface_set_app_id(struct weston_desktop_surface *surface,
const char *app_id)
{
char *tmp, *old;
tmp = strdup(app_id);
if (tmp == NULL)
return;
old = surface->app_id;
surface->app_id = tmp;
wl_signal_emit(&surface->metadata_signal, surface);
free(old);
}
void
weston_desktop_surface_set_pid(struct weston_desktop_surface *surface,
pid_t pid)
{
surface->pid = pid;
}
void
weston_desktop_surface_set_geometry(struct weston_desktop_surface *surface,
struct weston_geometry geometry)
{
surface->has_geometry = true;
surface->geometry = geometry;
}
void
weston_desktop_surface_set_relative_to(struct weston_desktop_surface *surface,
struct weston_desktop_surface *parent,
int32_t x, int32_t y, bool use_geometry)
{
struct weston_desktop_view *view, *parent_view;
struct wl_list *link, *tmp;
assert(parent);
surface->position.x = x;
surface->position.y = y;
surface->use_geometry = use_geometry;
if (surface->parent == parent)
return;
surface->parent = parent;
wl_list_remove(&surface->children_link);
wl_list_insert(surface->parent->children_list.prev,
&surface->children_link);
link = surface->view_list.next;
tmp = link->next;
wl_list_for_each(parent_view, &parent->view_list, link) {
if (link == &surface->view_list) {
view = weston_desktop_surface_create_desktop_view(surface);
if (view == NULL)
return;
tmp = &surface->view_list;
} else {
view = wl_container_of(link, view, link);
wl_list_remove(&view->children_link);
}
view->parent = parent_view;
wl_list_insert(parent_view->children_list.prev,
&view->children_link);
weston_desktop_view_propagate_layer(view);
link = tmp;
tmp = link->next;
}
for (; link != &surface->view_list; link = tmp, tmp = link->next) {
view = wl_container_of(link, view, link);
weston_desktop_view_destroy(view);
}
}
void
weston_desktop_surface_unset_relative_to(struct weston_desktop_surface *surface)
{
struct weston_desktop_view *view, *tmp;
if (surface->parent == NULL)
return;
surface->parent = NULL;
wl_list_remove(&surface->children_link);
wl_list_init(&surface->children_link);
wl_list_for_each_safe(view, tmp, &surface->view_list, link)
weston_desktop_view_destroy(view);
}
void
weston_desktop_surface_popup_grab(struct weston_desktop_surface *surface,
struct weston_desktop_seat *seat,
uint32_t serial)
{
struct wl_client *wl_client =
weston_desktop_client_get_client(surface->client);
if (weston_desktop_seat_popup_grab_start(seat, wl_client, serial))
weston_desktop_seat_popup_grab_add_surface(seat, &surface->grab_link);
else
weston_desktop_surface_popup_dismiss(surface);
}
void
weston_desktop_surface_popup_ungrab(struct weston_desktop_surface *surface,
struct weston_desktop_seat *seat)
{
weston_desktop_seat_popup_grab_remove_surface(seat, &surface->grab_link);
}
void
weston_desktop_surface_popup_dismiss(struct weston_desktop_surface *surface)
{
struct weston_desktop_view *view, *tmp;
wl_list_for_each_safe(view, tmp, &surface->view_list, link)
weston_desktop_view_destroy(view);
wl_list_remove(&surface->grab_link);
wl_list_init(&surface->grab_link);
weston_desktop_surface_close(surface);
}