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      1 /*
      2  * Copyright (C) 2006 Apple Computer, 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  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     14  *     its contributors may be used to endorse or promote products derived
     15  *     from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include "config.h"
     30 #include "core/loader/NavigationAction.h"
     31 
     32 #include "core/dom/MouseEvent.h"
     33 #include "core/loader/FrameLoader.h"
     34 
     35 namespace WebCore {
     36 
     37 static NavigationType navigationType(FrameLoadType frameLoadType, bool isFormSubmission, bool haveEvent)
     38 {
     39     bool isReload = frameLoadType == FrameLoadTypeReload || frameLoadType == FrameLoadTypeReloadFromOrigin;
     40     bool isBackForward = isBackForwardLoadType(frameLoadType);
     41     if (isFormSubmission)
     42         return (isReload || isBackForward) ? NavigationTypeFormResubmitted : NavigationTypeFormSubmitted;
     43     if (haveEvent)
     44         return NavigationTypeLinkClicked;
     45     if (isReload)
     46         return NavigationTypeReload;
     47     if (isBackForward)
     48         return NavigationTypeBackForward;
     49     return NavigationTypeOther;
     50 }
     51 
     52 NavigationAction::NavigationAction()
     53     : m_type(NavigationTypeOther)
     54 {
     55 }
     56 
     57 NavigationAction::NavigationAction(const ResourceRequest& resourceRequest)
     58     : m_resourceRequest(resourceRequest)
     59     , m_type(NavigationTypeOther)
     60 {
     61 }
     62 
     63 NavigationAction::NavigationAction(const ResourceRequest& resourceRequest, NavigationType type)
     64     : m_resourceRequest(resourceRequest)
     65     , m_type(type)
     66 {
     67 }
     68 
     69 NavigationAction::NavigationAction(const ResourceRequest& resourceRequest, FrameLoadType frameLoadType,
     70         bool isFormSubmission)
     71     : m_resourceRequest(resourceRequest)
     72     , m_type(navigationType(frameLoadType, isFormSubmission, 0))
     73 {
     74 }
     75 
     76 NavigationAction::NavigationAction(const ResourceRequest& resourceRequest, NavigationType type, PassRefPtr<Event> event)
     77     : m_resourceRequest(resourceRequest)
     78     , m_type(type)
     79     , m_event(event)
     80 {
     81 }
     82 
     83 NavigationAction::NavigationAction(const ResourceRequest& resourceRequest, FrameLoadType frameLoadType,
     84         bool isFormSubmission, PassRefPtr<Event> event)
     85     : m_resourceRequest(resourceRequest)
     86     , m_type(navigationType(frameLoadType, isFormSubmission, event))
     87     , m_event(event)
     88 {
     89 }
     90 
     91 bool NavigationAction::specifiesNavigationPolicy(NavigationPolicy* policy) const
     92 {
     93     const MouseEvent* event = 0;
     94     if (m_type == NavigationTypeLinkClicked && m_event->isMouseEvent())
     95         event = toMouseEvent(m_event.get());
     96     else if (m_type == NavigationTypeFormSubmitted && m_event && m_event->underlyingEvent() && m_event->underlyingEvent()->isMouseEvent())
     97         event = toMouseEvent(m_event->underlyingEvent());
     98 
     99     if (!event)
    100         return false;
    101     return navigationPolicyFromMouseEvent(event->button(), event->ctrlKey(), event->shiftKey(), event->altKey(), event->metaKey(), policy);
    102 }
    103 
    104 }
    105