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/*
* Copyright (C) 2012 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include "config.h"
#include "Prerender.h"
#include <public/Platform.h>
#include <public/WebPrerender.h>
#include <public/WebPrerenderingSupport.h>
#include <public/WebReferrerPolicy.h>
#include <public/WebString.h>
#include <public/WebURL.h>
#if ENABLE(LINK_PRERENDER)
namespace WebCore {
Prerender::Prerender(const KURL& url, const String& referrer, ReferrerPolicy policy)
: m_url(url)
, m_referrer(referrer)
, m_referrerPolicy(policy)
#ifndef NDEBUG
, m_state(Inactive)
#endif
{
}
Prerender::~Prerender()
{
}
void Prerender::setState(State state)
{
#ifdef NDEBUG
UNUSED_PARAM(state);
#else
m_state = state;
#endif
}
void Prerender::add()
{
ASSERT(m_state == Inactive);
WebKit::WebPrerenderingSupport* platform = WebKit::WebPrerenderingSupport::current();
if (!platform)
return;
WebKit::WebPrerender webPrerender(this);
platform->add(webPrerender);
setState(Active);
}
void Prerender::cancel()
{
ASSERT(WebKit::WebPrerenderingSupport::current());
WebKit::WebPrerenderingSupport* platform = WebKit::WebPrerenderingSupport::current();
if (!platform)
return;
ASSERT(m_state == Active);
WebKit::WebPrerender webPrerender(this);
platform->cancel(webPrerender);
setState(Inactive);
}
void Prerender::abandon()
{
WebKit::WebPrerenderingSupport* platform = WebKit::WebPrerenderingSupport::current();
if (!platform)
return;
// FIXME: Assert on the state as Inactive here. It is currently common to call abandon() on an Inactive
// prerender, as the Prerenderer doesn't keep track of which prerenders are active, and so any page that
// ever had a now-canceled Prerender will get this bogus stop() call.
WebKit::WebPrerender webPrerender(this);
platform->abandon(webPrerender);
setState(Inactive);
}
void Prerender::suspend()
{
abandon();
}
void Prerender::resume()
{
add();
}
}
#endif // ENABLE(LINK_PRERENDER)
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