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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/prerender/prerender_handle.h"
#include <algorithm>
#include "chrome/browser/prerender/prerender_contents.h"
namespace prerender {
PrerenderHandle::~PrerenderHandle() {
DCHECK(!IsValid());
// This shouldn't occur, but we also shouldn't leak if it does.
if (IsValid())
OnCancel();
}
void PrerenderHandle::OnNavigateAway() {
DCHECK(CalledOnValidThread());
if (!IsValid())
return;
prerender_data_->OnNavigateAwayByHandle();
prerender_data_.reset();
}
void PrerenderHandle::OnCancel() {
DCHECK(CalledOnValidThread());
if (!IsValid())
return;
prerender_data_->OnCancelByHandle();
prerender_data_.reset();
}
bool PrerenderHandle::IsValid() const {
return prerender_data_ != NULL;
}
bool PrerenderHandle::IsPending() const {
DCHECK(CalledOnValidThread());
return prerender_data_ && !prerender_data_->contents();
}
bool PrerenderHandle::IsPrerendering() const {
DCHECK(CalledOnValidThread());
return prerender_data_ && prerender_data_->contents();
}
bool PrerenderHandle::IsFinishedLoading() const {
DCHECK(CalledOnValidThread());
if (!prerender_data_ || IsPending())
return false;
return prerender_data_->contents()->has_finished_loading();
}
PrerenderHandle::PrerenderHandle(
PrerenderManager::PrerenderData* prerender_data)
: prerender_data_(prerender_data->AsWeakPtr()),
weak_ptr_factory_(this) {
prerender_data->OnNewHandle();
}
void PrerenderHandle::SwapPrerenderDataWith(
PrerenderHandle* other_prerender_handle) {
DCHECK(CalledOnValidThread());
DCHECK(other_prerender_handle);
std::swap(prerender_data_, other_prerender_handle->prerender_data_);
}
} // namespace prerender
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