1 /*
2 * CSS Media Query
3 *
4 * Copyright (C) 2006 Kimmo Kinnunen <kimmo.t.kinnunen@nokia.com>.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY
16 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
19 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
22 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
23 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 #include "config.h"
29 #include "MediaQueryExp.h"
30
31 #include "CSSParser.h"
32 #include "CSSPrimitiveValue.h"
33 #include "CSSValueList.h"
34
35 namespace WebCore {
36
MediaQueryExp(const AtomicString & mediaFeature,CSSParserValueList * valueList)37 MediaQueryExp::MediaQueryExp(const AtomicString& mediaFeature, CSSParserValueList* valueList)
38 : m_mediaFeature(mediaFeature)
39 , m_value(0)
40 {
41 if (valueList) {
42 if (valueList->size() == 1) {
43 CSSParserValue* value = valueList->current();
44
45 if (value->id != 0)
46 m_value = CSSPrimitiveValue::createIdentifier(value->id);
47 else if (value->unit == CSSPrimitiveValue::CSS_STRING)
48 m_value = CSSPrimitiveValue::create(value->string, (CSSPrimitiveValue::UnitTypes) value->unit);
49 else if (value->unit >= CSSPrimitiveValue::CSS_NUMBER &&
50 value->unit <= CSSPrimitiveValue::CSS_KHZ)
51 m_value = CSSPrimitiveValue::create(value->fValue, (CSSPrimitiveValue::UnitTypes) value->unit);
52
53 valueList->next();
54 } else if (valueList->size() > 1) {
55 // create list of values
56 // currently accepts only <integer>/<integer>
57
58 RefPtr<CSSValueList> list = CSSValueList::createCommaSeparated();
59 CSSParserValue* value = 0;
60 bool isValid = true;
61
62 while ((value = valueList->current()) && isValid) {
63 if (value->unit == CSSParserValue::Operator && value->iValue == '/')
64 list->append(CSSPrimitiveValue::create("/", CSSPrimitiveValue::CSS_STRING));
65 else if (value->unit == CSSPrimitiveValue::CSS_NUMBER)
66 list->append(CSSPrimitiveValue::create(value->fValue, CSSPrimitiveValue::CSS_NUMBER));
67 else
68 isValid = false;
69
70 value = valueList->next();
71 }
72
73 if (isValid)
74 m_value = list.release();
75 }
76 }
77 }
78
~MediaQueryExp()79 MediaQueryExp::~MediaQueryExp()
80 {
81 }
82
83 } // namespace
84