1/*
2 * Copyright (C) 2017 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#include "CSSPrimitiveValue.h"
29#include "CSSValue.h"
30#include "FontSelectionAlgorithm.h"
31
32namespace WebCore {
33
34class CSSFontStyleValue final : public CSSValue {
35public:
36 static Ref<CSSFontStyleValue> create(Ref<CSSPrimitiveValue>&& fontStyleValue)
37 {
38 return adoptRef(*new CSSFontStyleValue(WTFMove(fontStyleValue), nullptr));
39 }
40 static Ref<CSSFontStyleValue> create(Ref<CSSPrimitiveValue>&& fontStyleValue, RefPtr<CSSPrimitiveValue>&& obliqueValue)
41 {
42 return adoptRef(*new CSSFontStyleValue(WTFMove(fontStyleValue), WTFMove(obliqueValue)));
43 }
44
45 String customCSSText() const;
46
47 bool equals(const CSSFontStyleValue&) const;
48
49 bool isItalicOrOblique() const
50 {
51 if (!obliqueValue) {
52 auto valueID = fontStyleValue->valueID();
53 return valueID == CSSValueItalic || valueID == CSSValueOblique;
54 }
55 return obliqueValue->value<float>(CSSPrimitiveValue::CSS_DEG) >= static_cast<float>(italicValue());
56 }
57
58 Ref<CSSPrimitiveValue> fontStyleValue;
59 RefPtr<CSSPrimitiveValue> obliqueValue;
60
61private:
62 CSSFontStyleValue(Ref<CSSPrimitiveValue>&& fontStyleValue, RefPtr<CSSPrimitiveValue>&& obliqueValue)
63 : CSSValue(FontStyleClass)
64 , fontStyleValue(WTFMove(fontStyleValue))
65 , obliqueValue(WTFMove(obliqueValue))
66 {
67 }
68};
69
70}
71
72SPECIALIZE_TYPE_TRAITS_CSS_VALUE(CSSFontStyleValue, isFontStyleValue())
73