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Add wlr_input_inhibitor

This commit is contained in:
Drew DeVault 2018-04-03 10:50:16 -04:00
parent d88f3c1eb3
commit ef4e833f13
5 changed files with 225 additions and 0 deletions
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25
include/wlr/types/wlr_input_inhibitor.h Normal file
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@ -0,0 +1,25 @@
#ifndef WLR_TYPES_INPUT_INHIBITOR_H
#define WLR_TYPES_INPUT_INHIBITOR_H
#include <wayland-server.h>
struct wlr_input_inhibit_manager {
struct wl_global *wl_global;
struct wl_client *active_client;
struct wl_resource *active_inhibitor;
struct wl_listener display_destroy;
struct {
struct wl_signal activate; // struct wlr_input_inhibit_manager *
struct wl_signal deactivate; // struct wlr_input_inhibit_manager *
} events;
void *data;
};
struct wlr_input_inhibit_manager *wlr_input_inhibit_manager_create(
struct wl_display *display);
void wlr_input_inhibit_manager_destroy(
struct wlr_input_inhibit_manager *manager);
#endif

2
protocol/meson.build
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@ -31,6 +31,7 @@ protocols = [
'screenshooter.xml',
'server-decoration.xml',
'wlr-layer-shell-unstable-v1.xml',
'wlr-input-inhibitor-unstable-v1.xml',
]
client_protocols = [
@ -40,6 +41,7 @@ client_protocols = [
'idle.xml',
'screenshooter.xml',
'wlr-layer-shell-unstable-v1.xml',
'wlr-input-inhibitor-unstable-v1.xml',
]
wl_protos_src = []

67
protocol/wlr-input-inhibitor-unstable-v1.xml Normal file
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@ -0,0 +1,67 @@
<?xml version="1.0" encoding="UTF-8"?>
<protocol name="wlr_input_inhibit_unstable_v1">
<copyright>
Copyright © 2018 Drew DeVault
Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
without fee, provided that the above copyright notice appear in
all copies and that both that copyright notice and this permission
notice appear in supporting documentation, and that the name of
the copyright holders not be used in advertising or publicity
pertaining to distribution of the software without specific,
written prior permission. The copyright holders make no
representations about the suitability of this software for any
purpose. It is provided "as is" without express or implied
warranty.
THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
</copyright>
<interface name="zwlr_input_inhibit_manager_v1" version="1">
<description summary="inhibits input events to other clients">
Clients can use this interface to prevent input events from being sent to
any surfaces but its own, which is useful for example in lock screen
software. It is assumed that access to this interface will be locked down
to whitelisted clients by the compositor.
</description>
<request name="get_inhibitor">
<description summary="inhibit input to other clients">
Activates the input inhibitor. As long as the inhibitor is active, the
compositor will not send input events to other clients.
</description>
<arg name="id" type="new_id" interface="zwlr_input_inhibitor_v1"/>
</request>
<enum name="error">
<entry name="already_inhibited" value="0" summary="an input inhibitor is already in use on the compositor"/>
</enum>
</interface>
<interface name="zwlr_input_inhibitor_v1" version="1">
<description summary="inhibits input to other clients">
While this resource exists, input to clients other than the owner of the
inhibitor resource will not receive input events. The client that owns
this resource will receive all input events normally. The compositor will
also disable all of its own input processing (such as keyboard shortcuts)
while the inhibitor is active.
The compositor may continue to send input events to selected clients,
such as an on-screen keyboard (via the input-method protocol).
</description>
<request name="destroy" type="destructor">
<description summary="destroy the input inhibitor object">
Destroy the inhibitor and allow other clients to receive input.
</description>
</request>
</interface>
</protocol>

1
types/meson.build
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@ -10,6 +10,7 @@ lib_wlr_types = static_library(
'wlr_idle.c',
'wlr_idle_inhibit_v1.c',
'wlr_input_device.c',
'wlr_input_inhibitor.c',
'wlr_keyboard.c',
'wlr_layer_shell.c',
'wlr_linux_dmabuf.c',

130
types/wlr_input_inhibitor.c Normal file
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@ -0,0 +1,130 @@
#include <assert.h>
#include <stdbool.h>
#include <stdlib.h>
#include <wayland-server.h>
#include "wlr/types/wlr_input_inhibitor.h"
#include "wlr-input-inhibitor-unstable-v1-protocol.h"
static const struct zwlr_input_inhibit_manager_v1_interface inhibit_manager_implementation;
static struct wlr_input_inhibit_manager *input_inhibit_manager_from_resource(
struct wl_resource *resource) {
assert(wl_resource_instance_of(resource, &zwlr_input_inhibit_manager_v1_interface,
&inhibit_manager_implementation));
return wl_resource_get_user_data(resource);
}
static void input_inhibitor_destroy(struct wl_client *client,
struct wl_resource *resource) {
struct wlr_input_inhibit_manager *manager =
input_inhibit_manager_from_resource(resource);
manager->active_client = NULL;
manager->active_inhibitor = NULL;
wl_resource_destroy(resource);
wl_signal_emit(&manager->events.deactivate, manager);
}
static struct zwlr_input_inhibitor_v1_interface input_inhibitor_implementation = {
.destroy = input_inhibitor_destroy,
};
static void inhibit_manager_get_inhibitor(struct wl_client *client,
struct wl_resource *resource, uint32_t id) {
struct wlr_input_inhibit_manager *manager =
input_inhibit_manager_from_resource(resource);
if (manager->active_client || manager->active_inhibitor) {
wl_resource_post_error(resource,
ZWLR_INPUT_INHIBIT_MANAGER_V1_ERROR_ALREADY_INHIBITED,
"this compositor already has input inhibited");
return;
}
struct wl_resource *wl_resource = wl_resource_create(client,
&zwlr_input_inhibitor_v1_interface,
wl_resource_get_version(resource), id);
if (!wl_resource) {
wl_client_post_no_memory(client);
}
wl_resource_set_implementation(wl_resource, &input_inhibitor_implementation,
manager, NULL);
manager->active_client = client;
manager->active_inhibitor = wl_resource;
wl_signal_emit(&manager->events.activate, manager);
}
static const struct zwlr_input_inhibit_manager_v1_interface inhibit_manager_implementation = {
.get_inhibitor = inhibit_manager_get_inhibitor
};
static void input_manager_client_destroy(struct wl_resource *resource) {
struct wlr_input_inhibit_manager *manager =
input_inhibit_manager_from_resource(resource);
if (manager->active_client == wl_resource_get_client(resource)) {
input_inhibitor_destroy(manager->active_client, resource);
}
}
static void inhibit_manager_bind(struct wl_client *wl_client, void *data,
uint32_t version, uint32_t id) {
struct wlr_input_inhibit_manager *manager = data;
assert(wl_client && manager);
struct wl_resource *wl_resource = wl_resource_create(wl_client,
&zwlr_input_inhibit_manager_v1_interface, version, id);
if (wl_resource == NULL) {
wl_client_post_no_memory(wl_client);
return;
}
wl_resource_set_implementation(wl_resource,
&inhibit_manager_implementation, manager,
input_manager_client_destroy);
}
void wlr_input_inhibit_manager_destroy(
struct wlr_input_inhibit_manager *manager) {
if (!manager) {
return;
}
if (manager->active_client) {
input_inhibitor_destroy(manager->active_client,
manager->active_inhibitor);
}
wl_list_remove(&manager->display_destroy.link);
wl_global_destroy(manager->wl_global);
free(manager);
}
static void handle_display_destroy(struct wl_listener *listener, void *data) {
struct wlr_input_inhibit_manager *manager =
wl_container_of(listener, manager, display_destroy);
wlr_input_inhibit_manager_destroy(manager);
}
struct wlr_input_inhibit_manager *wlr_input_inhibit_manager_create(
struct wl_display *display) {
// TODO: Client destroy
struct wlr_input_inhibit_manager *manager =
calloc(1, sizeof(struct wlr_input_inhibit_manager));
if (!manager) {
return NULL;
}
manager->wl_global = wl_global_create(display,
&zwlr_input_inhibit_manager_v1_interface,
1, manager, inhibit_manager_bind);
if (manager->wl_global == NULL){
wl_list_remove(&manager->display_destroy.link);
free(manager);
return NULL;
}
wl_signal_init(&manager->events.activate);
wl_signal_init(&manager->events.deactivate);
manager->display_destroy.notify = handle_display_destroy;
wl_display_add_destroy_listener(display, &manager->display_destroy);
return manager;
}