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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 
     40 PerformanceNavigation::PerformanceNavigation(LocalFrame* frame)
     41     : DOMWindowProperty(frame)
     42 {
     43 }
     44 
     45 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 
     65 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 
     81 void PerformanceNavigation::trace(Visitor* visitor)
     82 {
     83     DOMWindowProperty::trace(visitor);
     84 }
     85 
     86 } // namespace blink
     87