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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 "base/logging.h"
#include "chrome/browser/prerender/prerender_contents.h"
#include "content/public/browser/web_contents.h"
namespace prerender {
PrerenderHandle::Observer::Observer() {
}
PrerenderHandle::Observer::~Observer() {
}
PrerenderHandle::~PrerenderHandle() {
if (prerender_data_.get()) {
prerender_data_->contents()->RemoveObserver(this);
}
}
void PrerenderHandle::SetObserver(Observer* observer) {
DCHECK_NE(static_cast<Observer*>(NULL), observer);
observer_ = observer;
}
void PrerenderHandle::OnNavigateAway() {
DCHECK(CalledOnValidThread());
if (prerender_data_.get())
prerender_data_->OnHandleNavigatedAway(this);
}
void PrerenderHandle::OnCancel() {
DCHECK(CalledOnValidThread());
if (prerender_data_.get())
prerender_data_->OnHandleCanceled(this);
}
bool PrerenderHandle::IsPrerendering() const {
DCHECK(CalledOnValidThread());
return prerender_data_.get() != NULL;
}
bool PrerenderHandle::IsFinishedLoading() const {
DCHECK(CalledOnValidThread());
if (!prerender_data_.get())
return false;
return prerender_data_->contents()->has_finished_loading();
}
bool PrerenderHandle::IsAbandoned() const {
DCHECK(CalledOnValidThread());
return prerender_data_ && !prerender_data_->abandon_time().is_null();
}
PrerenderContents* PrerenderHandle::contents() const {
DCHECK(CalledOnValidThread());
return prerender_data_ ? prerender_data_->contents() : NULL;
}
bool PrerenderHandle::Matches(
const GURL& url,
const content::SessionStorageNamespace* session_storage_namespace) const {
DCHECK(CalledOnValidThread());
if (!prerender_data_.get())
return false;
return prerender_data_->contents()->Matches(url, session_storage_namespace);
}
PrerenderHandle::PrerenderHandle(
PrerenderManager::PrerenderData* prerender_data)
: observer_(NULL),
weak_ptr_factory_(this) {
if (prerender_data) {
prerender_data_ = prerender_data->AsWeakPtr();
prerender_data->OnHandleCreated(this);
}
}
void PrerenderHandle::OnPrerenderStart(PrerenderContents* prerender_contents) {
DCHECK(CalledOnValidThread());
DCHECK(prerender_data_.get());
DCHECK_EQ(prerender_data_->contents(), prerender_contents);
if (observer_)
observer_->OnPrerenderStart(this);
}
void PrerenderHandle::OnPrerenderStopLoading(
PrerenderContents* prerender_contents) {
DCHECK(CalledOnValidThread());
DCHECK(prerender_data_.get());
DCHECK_EQ(prerender_data_->contents(), prerender_contents);
if (observer_)
observer_->OnPrerenderStopLoading(this);
}
void PrerenderHandle::OnPrerenderDomContentLoaded(
PrerenderContents* prerender_contents) {
DCHECK(CalledOnValidThread());
DCHECK(prerender_data_.get());
DCHECK_EQ(prerender_data_->contents(), prerender_contents);
if (observer_)
observer_->OnPrerenderDomContentLoaded(this);
}
void PrerenderHandle::OnPrerenderStop(PrerenderContents* prerender_contents) {
DCHECK(CalledOnValidThread());
if (observer_)
observer_->OnPrerenderStop(this);
}
void PrerenderHandle::OnPrerenderCreatedMatchCompleteReplacement(
PrerenderContents* contents, PrerenderContents* replacement) {
DCHECK(CalledOnValidThread());
// This should occur in the middle of the surgery on the PrerenderData, and
// so we expect to not have our new contents in our PrerenderData yet. The
// switch occurs in
// PrerenderManager::PrerenderData::MakeIntoMatchCompleteReplacement, so
// this method only needs to switch observing.
contents->RemoveObserver(this);
replacement->AddObserver(this);
if (observer_)
observer_->OnPrerenderCreatedMatchCompleteReplacement(this);
}
bool PrerenderHandle::RepresentingSamePrerenderAs(
PrerenderHandle* other) const {
return other && other->prerender_data_.get() && prerender_data_.get()
&& prerender_data_.get() == other->prerender_data_.get();
}
content::SessionStorageNamespace*
PrerenderHandle::GetSessionStorageNamespace() const {
if (!prerender_data_.get())
return NULL;
return prerender_data_->contents()->GetSessionStorageNamespace();
}
int PrerenderHandle::GetChildId() const {
if (!prerender_data_.get())
return -1;
return prerender_data_->contents()->child_id();
}
} // namespace prerender
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