1 /*
2 * This file is part of LibCSS
3 * Licensed under the MIT License,
4 * http://www.opensource.org/licenses/mit-license.php
5 * Copyright 2009 John-Mark Bell <jmb@netsurf-browser.org>
6 */
7
8 #include "bytecode/bytecode.h"
9 #include "bytecode/opcodes.h"
10 #include "select/propset.h"
11 #include "select/propget.h"
12 #include "utils/utils.h"
13
14 #include "select/properties/properties.h"
15 #include "select/properties/helpers.h"
16
css__cascade_visibility(uint32_t opv,css_style * style,css_select_state * state)17 css_error css__cascade_visibility(uint32_t opv, css_style *style,
18 css_select_state *state)
19 {
20 uint16_t value = CSS_VISIBILITY_INHERIT;
21
22 UNUSED(style);
23
24 if (isInherit(opv) == false) {
25 switch (getValue(opv)) {
26 case VISIBILITY_VISIBLE:
27 value = CSS_VISIBILITY_VISIBLE;
28 break;
29 case VISIBILITY_HIDDEN:
30 value = CSS_VISIBILITY_HIDDEN;
31 break;
32 case VISIBILITY_COLLAPSE:
33 value = CSS_VISIBILITY_COLLAPSE;
34 break;
35 }
36 }
37
38 if (css__outranks_existing(getOpcode(opv), isImportant(opv), state,
39 isInherit(opv))) {
40 return set_visibility(state->computed, value);
41 }
42
43 return CSS_OK;
44 }
45
css__set_visibility_from_hint(const css_hint * hint,css_computed_style * style)46 css_error css__set_visibility_from_hint(const css_hint *hint,
47 css_computed_style *style)
48 {
49 return set_visibility(style, hint->status);
50 }
51
css__initial_visibility(css_select_state * state)52 css_error css__initial_visibility(css_select_state *state)
53 {
54 return set_visibility(state->computed, CSS_VISIBILITY_VISIBLE);
55 }
56
css__compose_visibility(const css_computed_style * parent,const css_computed_style * child,css_computed_style * result)57 css_error css__compose_visibility(const css_computed_style *parent,
58 const css_computed_style *child,
59 css_computed_style *result)
60 {
61 uint8_t type = get_visibility(child);
62
63 if (type == CSS_VISIBILITY_INHERIT) {
64 type = get_visibility(parent);
65 }
66
67 return set_visibility(result, type);
68 }
69
70