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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/ui/tab_contents/tab_contents_iterator.h"
#include "base/logging.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
TabContentsIterator::TabContentsIterator()
: web_view_index_(-1),
cur_(NULL) {
// Load the first WebContents into |cur_|.
Next();
}
void TabContentsIterator::Next() {
// The current WebContents should be valid unless we are at the beginning.
DCHECK(cur_ || web_view_index_ == -1) << "Trying to advance past the end";
// Update |cur_| to the next WebContents in the list.
while (!browser_iterator_.done()) {
if (++web_view_index_ >= browser_iterator_->tab_strip_model()->count()) {
// Advance to the next Browser in the list.
browser_iterator_.Next();
web_view_index_ = -1;
continue;
}
content::WebContents* next_tab = browser_iterator_->tab_strip_model()
->GetWebContentsAt(web_view_index_);
if (next_tab) {
cur_ = next_tab;
return;
}
}
// Reached the end.
cur_ = NULL;
}
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