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// Copyright 2014 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.
#ifndef COMPONENTS_BOOKMARKS_BROWSER_BOOKMARK_CLIENT_H_
#define COMPONENTS_BOOKMARKS_BROWSER_BOOKMARK_CLIENT_H_
#include <set>
#include <utility>
#include <vector>
#include "base/callback_forward.h"
#include "base/task/cancelable_task_tracker.h"
#include "components/bookmarks/browser/bookmark_storage.h"
#include "components/favicon_base/favicon_callback.h"
#include "components/favicon_base/favicon_types.h"
#include "components/keyed_service/core/keyed_service.h"
class GURL;
namespace base {
struct UserMetricsAction;
}
namespace bookmarks {
class BookmarkNode;
class BookmarkPermanentNode;
// This class abstracts operations that depends on the embedder's environment,
// e.g. Chrome.
class BookmarkClient : public KeyedService {
public:
// Types representing a set of BookmarkNode and a mapping from BookmarkNode
// to the number of time the corresponding URL has been typed by the user in
// the Omnibox.
typedef std::set<const BookmarkNode*> NodeSet;
typedef std::pair<const BookmarkNode*, int> NodeTypedCountPair;
typedef std::vector<NodeTypedCountPair> NodeTypedCountPairs;
// Returns true if the embedder favors touch icons over favicons.
virtual bool PreferTouchIcon();
// Requests a favicon from the history cache for the web page at |page_url|.
// |callback| is run when the favicon has been fetched. If |type| is:
// - favicon_base::FAVICON, the returned gfx::Image is a multi-resolution
// image of gfx::kFaviconSize DIP width and height. The data from the
// history cache is resized if need be.
// - not favicon_base::FAVICON, the returned gfx::Image is a single-resolution
// image with the largest bitmap in the history cache for |page_url| and
// |type|.
virtual base::CancelableTaskTracker::TaskId GetFaviconImageForPageURL(
const GURL& page_url,
favicon_base::IconType type,
const favicon_base::FaviconImageCallback& callback,
base::CancelableTaskTracker* tracker);
// Returns true if the embedder supports typed count for URL.
virtual bool SupportsTypedCountForNodes();
// Retrieves the number of time each BookmarkNode URL has been typed in
// the Omnibox by the user.
virtual void GetTypedCountForNodes(
const NodeSet& nodes,
NodeTypedCountPairs* node_typed_count_pairs);
// Returns whether the embedder wants permanent node |node|
// to always be visible or to only show them when not empty.
virtual bool IsPermanentNodeVisible(const BookmarkPermanentNode* node) = 0;
// Wrapper around RecordAction defined in base/metrics/user_metrics.h
// that ensure that the action is posted from the correct thread.
virtual void RecordAction(const base::UserMetricsAction& action) = 0;
// Returns a task that will be used to load any additional root nodes. This
// task will be invoked in the Profile's IO task runner.
virtual LoadExtraCallback GetLoadExtraNodesCallback() = 0;
// Returns true if the |permanent_node| can have its title updated.
virtual bool CanSetPermanentNodeTitle(const BookmarkNode* permanent_node) = 0;
// Returns true if |node| should sync.
virtual bool CanSyncNode(const BookmarkNode* node) = 0;
// Returns true if this node can be edited by the user.
// TODO(joaodasilva): the model should check this more aggressively, and
// should give the client a means to temporarily disable those checks.
// http://crbug.com/49598
virtual bool CanBeEditedByUser(const BookmarkNode* node) = 0;
protected:
~BookmarkClient() override {}
};
} // namespace bookmarks
#endif // COMPONENTS_BOOKMARKS_BROWSER_BOOKMARK_CLIENT_H_
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