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 2017 Lucas Neves <lcneves@gmail.com>
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_flex_basis(uint32_t opv,css_style * style,css_select_state * state)17 css_error css__cascade_flex_basis(uint32_t opv, css_style *style,
18 css_select_state *state)
19 {
20 uint16_t value = CSS_FLEX_BASIS_INHERIT;
21 css_fixed length = 0;
22 uint32_t unit = UNIT_PX;
23
24 if (isInherit(opv) == false) {
25 switch (getValue(opv)) {
26 case FLEX_BASIS_AUTO:
27 value = CSS_FLEX_BASIS_AUTO;
28 break;
29 case FLEX_BASIS_CONTENT:
30 value = CSS_FLEX_BASIS_CONTENT;
31 break;
32 case FLEX_BASIS_SET:
33 value = CSS_FLEX_BASIS_SET;
34 length = *((css_fixed *) style->bytecode);
35 advance_bytecode(style, sizeof(length));
36 unit = *((uint32_t *) style->bytecode);
37 advance_bytecode(style, sizeof(unit));
38 break;
39 }
40 }
41
42 unit = css__to_css_unit(unit);
43
44 if (css__outranks_existing(getOpcode(opv), isImportant(opv), state,
45 isInherit(opv))) {
46 return set_flex_basis(state->computed, value, length, unit);
47 }
48
49 return CSS_OK;
50 }
51
css__set_flex_basis_from_hint(const css_hint * hint,css_computed_style * style)52 css_error css__set_flex_basis_from_hint(const css_hint *hint,
53 css_computed_style *style)
54 {
55 return set_flex_basis(style, hint->status,
56 hint->data.length.value, hint->data.length.unit);
57 }
58
css__initial_flex_basis(css_select_state * state)59 css_error css__initial_flex_basis(css_select_state *state)
60 {
61 return set_flex_basis(state->computed, CSS_FLEX_BASIS_AUTO, 0,
62 CSS_UNIT_PX);
63 }
64
css__compose_flex_basis(const css_computed_style * parent,const css_computed_style * child,css_computed_style * result)65 css_error css__compose_flex_basis(const css_computed_style *parent,
66 const css_computed_style *child,
67 css_computed_style *result)
68 {
69 css_fixed length = 0;
70 css_unit unit = CSS_UNIT_PX;
71 uint8_t type = get_flex_basis(child, &length, &unit);
72
73 if (type == CSS_FLEX_BASIS_INHERIT) {
74 type = get_flex_basis(parent, &length, &unit);
75 }
76
77 return set_flex_basis(result, type, length, unit);
78 }
79
80