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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/no_state_prefetch/browser/no_state_prefetch_handle.h"
#include <algorithm>
#include "base/check_op.h"
#include "components/no_state_prefetch/browser/no_state_prefetch_contents.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/web_contents.h"
using content::BrowserThread;
namespace prerender {
NoStatePrefetchHandle::Observer::Observer() = default;
NoStatePrefetchHandle::Observer::~Observer() = default;
NoStatePrefetchHandle::~NoStatePrefetchHandle() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (prefetch_data_) {
prefetch_data_->contents()->RemoveObserver(this);
}
}
void NoStatePrefetchHandle::SetObserver(Observer* observer) {
observer_ = observer;
}
void NoStatePrefetchHandle::OnNavigateAway() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (prefetch_data_) {
prefetch_data_->OnHandleNavigatedAway(this);
}
}
void NoStatePrefetchHandle::OnCancel() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (prefetch_data_) {
prefetch_data_->OnHandleCanceled(this);
}
}
bool NoStatePrefetchHandle::IsPrefetching() const {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
return prefetch_data_.get() != nullptr &&
!prefetch_data_->contents()->prefetching_has_been_cancelled();
}
bool NoStatePrefetchHandle::IsFinishedLoading() const {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
return prefetch_data_ && prefetch_data_->contents()->has_finished_loading();
}
NoStatePrefetchContents* NoStatePrefetchHandle::contents() const {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
return prefetch_data_ ? prefetch_data_->contents() : nullptr;
}
NoStatePrefetchHandle::NoStatePrefetchHandle(
NoStatePrefetchManager::NoStatePrefetchData* prefetch_data)
: observer_(nullptr) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (prefetch_data) {
prefetch_data_ = prefetch_data->AsWeakPtr();
prefetch_data->OnHandleCreated(this);
}
}
void NoStatePrefetchHandle::OnPrefetchStop(
NoStatePrefetchContents* no_state_prefetch_contents) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (observer_) {
observer_->OnPrefetchStop(this);
}
}
bool NoStatePrefetchHandle::RepresentingSamePrefetchAs(
NoStatePrefetchHandle* other) const {
return other && other->prefetch_data_ && prefetch_data_ &&
prefetch_data_.get() == other->prefetch_data_.get();
}
} // namespace prerender
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