1/*
2 * Copyright (C) 2011 Google 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 are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 *
30 */
31
32#include "config.h"
33#include "LinkRelAttribute.h"
34
35namespace WebCore {
36
37LinkRelAttribute::LinkRelAttribute()
38    : m_isStyleSheet(false)
39    , m_iconType(InvalidIcon)
40    , m_isAlternate(false)
41    , m_isDNSPrefetch(false)
42#if ENABLE(LINK_PREFETCH)
43    , m_isLinkPrefetch(false)
44    , m_isLinkSubresource(false)
45#endif
46{
47}
48
49LinkRelAttribute::LinkRelAttribute(const String& rel)
50    : m_isStyleSheet(false)
51    , m_iconType(InvalidIcon)
52    , m_isAlternate(false)
53    , m_isDNSPrefetch(false)
54#if ENABLE(LINK_PREFETCH)
55    , m_isLinkPrefetch(false)
56    , m_isLinkSubresource(false)
57#endif
58{
59    if (equalIgnoringCase(rel, "stylesheet"))
60        m_isStyleSheet = true;
61    else if (equalIgnoringCase(rel, "icon") || equalIgnoringCase(rel, "shortcut icon"))
62        m_iconType = Favicon;
63#if ENABLE(TOUCH_ICON_LOADING)
64    else if (equalIgnoringCase(rel, "apple-touch-icon"))
65        m_iconType = TouchIcon;
66    else if (equalIgnoringCase(rel, "apple-touch-icon-precomposed"))
67        m_iconType = TouchPrecomposedIcon;
68#endif
69    else if (equalIgnoringCase(rel, "dns-prefetch"))
70        m_isDNSPrefetch = true;
71    else if (equalIgnoringCase(rel, "alternate stylesheet") || equalIgnoringCase(rel, "stylesheet alternate")) {
72        m_isStyleSheet = true;
73        m_isAlternate = true;
74    } else {
75        // Tokenize the rel attribute and set bits based on specific keywords that we find.
76        String relCopy = rel;
77        relCopy.replace('\n', ' ');
78        Vector<String> list;
79        relCopy.split(' ', list);
80        Vector<String>::const_iterator end = list.end();
81        for (Vector<String>::const_iterator it = list.begin(); it != end; ++it) {
82            if (equalIgnoringCase(*it, "stylesheet"))
83                m_isStyleSheet = true;
84            else if (equalIgnoringCase(*it, "alternate"))
85                m_isAlternate = true;
86            else if (equalIgnoringCase(*it, "icon"))
87                m_iconType = Favicon;
88#if ENABLE(TOUCH_ICON_LOADING)
89            else if (equalIgnoringCase(*it, "apple-touch-icon"))
90                m_iconType = TouchIcon;
91            else if (equalIgnoringCase(*it, "apple-touch-icon-precomposed"))
92                m_iconType = TouchPrecomposedIcon;
93#endif
94#if ENABLE(LINK_PREFETCH)
95            else if (equalIgnoringCase(*it, "prefetch"))
96              m_isLinkPrefetch = true;
97            else if (equalIgnoringCase(*it, "subresource"))
98              m_isLinkSubresource = true;
99#endif
100        }
101    }
102}
103
104}
105