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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_SESSIONS_SESSION_RESTORE_DELEGATE_H_
#define CHROME_BROWSER_SESSIONS_SESSION_RESTORE_DELEGATE_H_
#include <optional>
#include <vector>
#include "base/memory/weak_ptr.h"
#include "base/time/time.h"
#include "base/token.h"
#include "components/sessions/core/session_id.h"
#include "components/tab_groups/tab_group_id.h"
#include "content/public/browser/web_contents_observer.h"
namespace content {
class WebContents;
}
// SessionRestoreDelegate is responsible for creating the tab loader and the
// stats collector.
class SessionRestoreDelegate {
public:
class RestoredTab {
public:
RestoredTab(content::WebContents* contents,
bool is_active,
bool is_app,
bool is_pinned,
const std::optional<tab_groups::TabGroupId>& group);
RestoredTab(const RestoredTab&);
RestoredTab& operator=(const RestoredTab&);
~RestoredTab();
bool operator<(const RestoredTab& right) const;
content::WebContents* contents() const { return contents_.get(); }
bool is_active() const { return is_active_; }
bool is_app() const { return is_app_; }
bool is_internal_page() const { return is_internal_page_; }
bool is_pinned() const { return is_pinned_; }
const std::optional<tab_groups::TabGroupId>& group() const {
return group_;
}
private:
// During restore it's possible for some WebContents to be deleted, which
// is why this is a WeakPtr. Before SessionRestore calls to RestoreTabs()
// any RestoredTabs with a deleted WebContents are removed. In other words,
// when RestoreTabs() is called, the WebContents will be valid.
base::WeakPtr<content::WebContents> contents_;
bool is_active_;
bool is_app_; // Browser window is an app.
bool is_internal_page_; // Internal web UI page, like NTP or Settings.
bool is_pinned_;
// The ID for the tab group that this tab belonged to, if any. See
// |TabStripModel::AddToNewGroup()| for more documentation.
std::optional<tab_groups::TabGroupId> group_;
};
SessionRestoreDelegate() = delete;
SessionRestoreDelegate(const SessionRestoreDelegate&) = delete;
SessionRestoreDelegate& operator=(const SessionRestoreDelegate&) = delete;
static void RestoreTabs(const std::vector<RestoredTab>& tabs,
const base::TimeTicks& restore_started);
};
#endif // CHROME_BROWSER_SESSIONS_SESSION_RESTORE_DELEGATE_H_
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