mirror of
https://gitlab.freedesktop.org/libinput/libei.git
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4d9ca1796d
This allows us to have a device support multiple interfaces and evolve those interfaces individually, e.g. add things to the keyboard interface without having to bump the touchscreen interface. Note that due to a name clash with the existing struct ei_touch public API the protocol interface is named touchscreen.
87 lines
2.7 KiB
C
87 lines
2.7 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2023 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 pointer 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 <stdbool.h>
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#include "util-bits.h"
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#include "util-macros.h"
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#include "util-mem.h"
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#include "util-io.h"
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#include "util-strings.h"
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#include "util-version.h"
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#include "libei-private.h"
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#include "ei-proto.h"
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static void
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ei_pointer_destroy(struct ei_pointer *pointer)
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{
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struct ei *ei = ei_pointer_get_context(pointer);
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ei_unregister_object(ei, &pointer->proto_object);
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}
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OBJECT_IMPLEMENT_REF(ei_pointer);
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OBJECT_IMPLEMENT_UNREF_CLEANUP(ei_pointer);
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static
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OBJECT_IMPLEMENT_CREATE(ei_pointer);
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static
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OBJECT_IMPLEMENT_PARENT(ei_pointer, ei_device);
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OBJECT_IMPLEMENT_GETTER_AS_REF(ei_pointer, proto_object, const struct brei_object*);
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struct ei_device *
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ei_pointer_get_device(struct ei_pointer *pointer)
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{
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return ei_pointer_parent(pointer);
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}
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struct ei*
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ei_pointer_get_context(struct ei_pointer *pointer)
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{
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return ei_device_get_context(ei_pointer_get_device(pointer));
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}
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const struct ei_pointer_interface *
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ei_pointer_get_interface(struct ei_pointer *pointer) {
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struct ei_device *device = ei_pointer_get_device(pointer);
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return ei_device_get_pointer_interface(device);
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}
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struct ei_pointer *
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ei_pointer_new(struct ei_device *device, uint32_t id, uint32_t version)
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{
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struct ei_pointer *pointer = ei_pointer_create(&device->object);
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struct ei *ei = ei_device_get_context(device);
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pointer->proto_object.id = id;
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pointer->proto_object.implementation = pointer;
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pointer->proto_object.interface = &ei_pointer_proto_interface;
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pointer->proto_object.version = version;
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ei_register_object(ei, &pointer->proto_object);
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return pointer; /* ref owned by caller */
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}
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