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weston/compositor/weston-screenshooter.c

202 lines
5.7 KiB

/*
* Copyright © 2008-2011 Kristian Høgsberg
*
* 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 <stdint.h>
#include <linux/input.h>
#include <libweston/libweston.h>
#include "weston.h"
#include "weston-screenshooter-server-protocol.h"
#include "shared/helpers.h"
#include <libweston/weston-log.h>
struct screenshooter {
struct weston_compositor *ec;
struct wl_global *global;
struct wl_client *client;
struct weston_process process;
struct wl_listener destroy_listener;
struct weston_recorder *recorder;
};
static void
screenshooter_done(void *data, enum weston_screenshooter_outcome outcome)
{
struct wl_resource *resource = data;
switch (outcome) {
case WESTON_SCREENSHOOTER_SUCCESS:
weston_screenshooter_send_done(resource);
break;
case WESTON_SCREENSHOOTER_NO_MEMORY:
wl_resource_post_no_memory(resource);
break;
default:
break;
}
}
static void
screenshooter_take_shot(struct wl_client *client,
struct wl_resource *resource,
struct wl_resource *output_resource,
struct wl_resource *buffer_resource)
{
struct weston_output *output =
weston_head_from_resource(output_resource)->output;
struct weston_compositor *ec = output->compositor;
struct weston_buffer *buffer =
weston_buffer_from_resource(ec, buffer_resource);
if (buffer == NULL) {
wl_resource_post_no_memory(resource);
return;
}
weston_screenshooter_shoot(output, buffer, screenshooter_done, resource);
}
struct weston_screenshooter_interface screenshooter_implementation = {
screenshooter_take_shot
};
static void
bind_shooter(struct wl_client *client,
void *data, uint32_t version, uint32_t id)
{
struct screenshooter *shooter = data;
struct wl_resource *resource;
bool debug_enabled =
weston_compositor_is_debug_protocol_enabled(shooter->ec);
resource = wl_resource_create(client,
&weston_screenshooter_interface, 1, id);
if (!debug_enabled && !shooter->client) {
wl_resource_post_error(resource, WL_DISPLAY_ERROR_INVALID_OBJECT,
"screenshooter failed: permission denied. "\
"Debug protocol must be enabled");
return;
} else if (!debug_enabled && client != shooter->client) {
wl_resource_post_error(resource, WL_DISPLAY_ERROR_INVALID_OBJECT,
"screenshooter failed: permission denied.");
return;
}
wl_resource_set_implementation(resource, &screenshooter_implementation,
data, NULL);
}
static void
screenshooter_sigchld(struct weston_process *process, int status)
{
struct screenshooter *shooter =
container_of(process, struct screenshooter, process);
shooter->client = NULL;
}
static void
screenshooter_binding(struct weston_keyboard *keyboard,
const struct timespec *time, uint32_t key, void *data)
{
struct screenshooter *shooter = data;
char *screenshooter_exe;
screenshooter_exe = wet_get_bindir_path("weston-screenshooter");
if (!screenshooter_exe) {
weston_log("Could not construct screenshooter path.\n");
return;
}
if (!shooter->client)
shooter->client = weston_client_launch(shooter->ec,
&shooter->process,
screenshooter_exe, screenshooter_sigchld);
free(screenshooter_exe);
}
static void
recorder_binding(struct weston_keyboard *keyboard, const struct timespec *time,
uint32_t key, void *data)
{
struct weston_compositor *ec = keyboard->seat->compositor;
struct weston_output *output;
struct screenshooter *shooter = data;
struct weston_recorder *recorder = shooter->recorder;;
static const char filename[] = "capture.wcap";
if (recorder) {
weston_recorder_stop(recorder);
shooter->recorder = NULL;
} else {
if (keyboard->focus && keyboard->focus->output)
output = keyboard->focus->output;
else
output = container_of(ec->output_list.next,
struct weston_output, link);
shooter->recorder = weston_recorder_start(output, filename);
}
}
static void
screenshooter_destroy(struct wl_listener *listener, void *data)
{
struct screenshooter *shooter =
container_of(listener, struct screenshooter, destroy_listener);
wl_list_remove(&shooter->destroy_listener.link);
wl_global_destroy(shooter->global);
free(shooter);
}
WL_EXPORT void
screenshooter_create(struct weston_compositor *ec)
{
struct screenshooter *shooter;
shooter = zalloc(sizeof *shooter);
if (shooter == NULL)
return;
shooter->ec = ec;
shooter->global = wl_global_create(ec->wl_display,
&weston_screenshooter_interface, 1,
shooter, bind_shooter);
weston_compositor_add_key_binding(ec, KEY_S, MODIFIER_SUPER,
screenshooter_binding, shooter);
weston_compositor_add_key_binding(ec, KEY_R, MODIFIER_SUPER,
recorder_binding, shooter);
shooter->destroy_listener.notify = screenshooter_destroy;
wl_signal_add(&ec->destroy_signal, &shooter->destroy_listener);
}