1/*
2 * Copyright (C) 2007, 2008 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 COMPUTER, 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 COMPUTER, 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#include "config.h"
27#include "WebKitCSSKeyframeRule.h"
28
29#include "CSSMutableStyleDeclaration.h"
30
31namespace WebCore {
32
33WebKitCSSKeyframeRule::WebKitCSSKeyframeRule(CSSStyleSheet* parent)
34    : CSSRule(parent)
35{
36}
37
38WebKitCSSKeyframeRule::~WebKitCSSKeyframeRule()
39{
40    if (m_style)
41        m_style->setParent(0);
42}
43
44String WebKitCSSKeyframeRule::cssText() const
45{
46    String result = m_key;
47
48    result += " { ";
49    result += m_style->cssText();
50    result += "}";
51
52    return result;
53}
54
55bool WebKitCSSKeyframeRule::parseString(const String& /*string*/, bool /*strict*/)
56{
57    // FIXME
58    return false;
59}
60
61void WebKitCSSKeyframeRule::setDeclaration(PassRefPtr<CSSMutableStyleDeclaration> style)
62{
63    m_style = style;
64    m_style->setParent(parent());
65}
66
67/* static */
68void WebKitCSSKeyframeRule::parseKeyString(const String& s, Vector<float>& keys)
69{
70    keys.clear();
71    Vector<String> strings;
72    s.split(',', strings);
73
74    for (size_t i = 0; i < strings.size(); ++i) {
75        float key = -1;
76        String cur = strings[i].stripWhiteSpace();
77
78        // For now the syntax MUST be 'xxx%' or 'from' or 'to', where xxx is a legal floating point number
79        if (cur == "from")
80            key = 0;
81        else if (cur == "to")
82            key = 1;
83        else if (cur.endsWith("%")) {
84            float k = cur.substring(0, cur.length() - 1).toFloat();
85            if (k >= 0 && k <= 100)
86                key = k/100;
87        }
88
89        if (key < 0) {
90            keys.clear();
91            return;
92        }
93        else
94            keys.append(key);
95    }
96}
97
98} // namespace WebCore
99