mirror of
https://gitlab.freedesktop.org/libinput/libei.git
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f7a24b2fbd
This is the minimum framework to support new clients, added devices and pointer relative motion events. It's missing a bunch of checks and verification, most of the server hooks aren't there yet, the only implementation is a UNIX socket and the protocol is plain text (but at least the last two makes it netcat-compatible). Protocol is plain text for now and interaction is like this (S is server, C is client): S: hello C: connect myclientname S: connected C: add 2 4 S: accept 2 C: rel 2 -1 1 C: rel 2 5 4 Where the last two lines are: add device with id 2 and capability mask 0x4, send a relative pointer motion event for device 2 with coordinates -1/1, then 5/4. The implementation relies heavily on some abstraction and macros galore, see the various util-* files. These are largely copied from libinput, with a few parts removed and a few other parts added. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
/*
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* Copyright © 2020 Red Hat, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include "config.h"
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#include <errno.h>
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#include "util-macros.h"
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#include "util-bits.h"
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#include "libeis-private.h"
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static void
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eis_device_destroy(struct eis_device *device)
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{
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}
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OBJECT_DECLARE_REF(eis_device);
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OBJECT_DECLARE_UNREF(eis_device);
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OBJECT_DECLARE_CREATE(eis_device);
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static
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OBJECT_DECLARE_PARENT(eis_device, eis_client);
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_public_ struct eis_client *
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eis_device_get_client(struct eis_device *device)
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{
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return eis_device_parent(device);
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}
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struct eis_device *
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eis_device_new(struct eis_client *client,
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uint32_t id,
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uint32_t capabilities)
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{
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struct eis_device *device = eis_device_create(&client->object);
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device->capabilities = capabilities;
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device->id = id;
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device->state = EIS_DEVICE_STATE_NEW;
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return device;
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}
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_public_
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bool
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eis_device_has_capability(struct eis_device *device,
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enum eis_device_capability cap)
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{
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switch (cap) {
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case EIS_DEVICE_CAP_POINTER:
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case EIS_DEVICE_CAP_POINTER_ABSOLUTE:
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case EIS_DEVICE_CAP_KEYBOARD:
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case EIS_DEVICE_CAP_TOUCH:
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return flag_is_set(device->capabilities, cap);
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}
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return false;
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}
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int
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eis_device_pointer_rel(struct eis_device *device,
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int x, int y)
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{
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if (!eis_device_has_capability(device, EIS_DEVICE_CAP_POINTER))
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return -EINVAL;
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if (device->state != EIS_DEVICE_STATE_ACCEPTED)
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return -EINVAL;
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eis_queue_pointer_rel_event(device, x, y);
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return 0;
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}
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_public_ void
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eis_device_connect(struct eis_device *device)
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{
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if (device->state != EIS_DEVICE_STATE_NEW)
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return;
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device->state = EIS_DEVICE_STATE_ACCEPTED;
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eis_client_connect_device(eis_device_get_client(device), device);
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}
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