| 1 | /*
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| 2 | * Copyright (c) 2020 Jiri Svoboda
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @addtogroup libui
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| 30 | * @{
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| 31 | */
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| 32 | /**
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| 33 | * @file UI control
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| 34 | */
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| 35 |
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| 36 | #include <errno.h>
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| 37 | #include <io/pos_event.h>
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| 38 | #include <stdlib.h>
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| 39 | #include <ui/control.h>
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| 40 | #include "../private/control.h"
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| 41 |
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| 42 | /** Allocate new UI control.
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| 43 | *
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| 44 | * @param ops Control ops
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| 45 | * @param ext Control extended data
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| 46 | * @param rcontrol Place to store pointer to new control
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| 47 | * @return EOK on success, ENOMEM if out of memory
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| 48 | */
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| 49 | errno_t ui_control_new(ui_control_ops_t *ops, void *ext,
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| 50 | ui_control_t **rcontrol)
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| 51 | {
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| 52 | ui_control_t *control;
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| 53 |
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| 54 | control = calloc(1, sizeof(ui_control_t));
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| 55 | if (control == NULL)
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| 56 | return ENOMEM;
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| 57 |
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| 58 | control->ops = ops;
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| 59 | control->ext = ext;
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| 60 | *rcontrol = control;
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| 61 | return EOK;
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| 62 | }
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| 63 |
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| 64 | /** Delete UI control.
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| 65 | *
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| 66 | * @param control UI control or @c NULL
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| 67 | */
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| 68 | void ui_control_delete(ui_control_t *control)
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| 69 | {
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| 70 | if (control == NULL)
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| 71 | return;
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| 72 |
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| 73 | free(control);
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| 74 | }
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| 75 |
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| 76 | /** Deliver position event to UI control.
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| 77 | *
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| 78 | * @param control Push button
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| 79 | * @param pos_event Position event
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| 80 | * @return @c ui_claimed iff the event is claimed
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| 81 | */
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| 82 | ui_evclaim_t ui_control_pos_event(ui_control_t *control, pos_event_t *event)
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| 83 | {
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| 84 | return control->ops->pos_event(control->ext, event);
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| 85 | }
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| 86 |
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| 87 | /** @}
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| 88 | */
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