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1 /*
2  * Copyright (C) 2010 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 #include "config.h"
32 #include "core/timing/PerformanceNavigation.h"
33 
34 #include "core/frame/LocalFrame.h"
35 #include "core/loader/DocumentLoader.h"
36 #include "core/loader/FrameLoaderTypes.h"
37 
38 namespace blink {
39 
PerformanceNavigation(LocalFrame * frame)40 PerformanceNavigation::PerformanceNavigation(LocalFrame* frame)
41     : DOMWindowProperty(frame)
42 {
43 }
44 
type() const45 unsigned short PerformanceNavigation::type() const
46 {
47     if (!m_frame)
48         return TYPE_NAVIGATE;
49 
50     DocumentLoader* documentLoader = m_frame->loader().documentLoader();
51     if (!documentLoader)
52         return TYPE_NAVIGATE;
53 
54     blink::NavigationType navigationType = documentLoader->triggeringAction().type();
55     switch (navigationType) {
56     case NavigationTypeReload:
57         return TYPE_RELOAD;
58     case NavigationTypeBackForward:
59         return TYPE_BACK_FORWARD;
60     default:
61         return TYPE_NAVIGATE;
62     }
63 }
64 
redirectCount() const65 unsigned short PerformanceNavigation::redirectCount() const
66 {
67     if (!m_frame)
68         return 0;
69 
70     DocumentLoader* loader = m_frame->loader().documentLoader();
71     if (!loader)
72         return 0;
73 
74     DocumentLoadTiming* timing = loader->timing();
75     if (timing->hasCrossOriginRedirect())
76         return 0;
77 
78     return timing->redirectCount();
79 }
80 
trace(Visitor * visitor)81 void PerformanceNavigation::trace(Visitor* visitor)
82 {
83     DOMWindowProperty::trace(visitor);
84 }
85 
86 } // namespace blink
87