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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_SAVED_TAB_GROUPS_SAVED_TAB_GROUP_MODEL_OBSERVER_H_
#define COMPONENTS_SAVED_TAB_GROUPS_SAVED_TAB_GROUP_MODEL_OBSERVER_H_
#include "base/uuid.h"
#include "components/saved_tab_groups/saved_tab_group_model.h"
#include "components/saved_tab_groups/saved_tab_group_tab.h"
#include "components/tab_groups/tab_group_id.h"
#include "third_party/abseil-cpp/absl/types/optional.h"
// Serves to notify any SavedTabGroupModel listeners that a change has occurred
// supply the SavedTabGroup that was changed.
class SavedTabGroupModelObserver {
public:
SavedTabGroupModelObserver(const SavedTabGroupModelObserver&) = delete;
SavedTabGroupModelObserver& operator=(const SavedTabGroupModelObserver&) =
delete;
// Called when a saved tab group is added to the backend.
virtual void SavedTabGroupAddedLocally(const base::Uuid& guid) {}
// Called when a saved tab group will be removed from the backend.
virtual void SavedTabGroupRemovedLocally(const SavedTabGroup* removed_group) {
}
// Called when the saved tab group is opened or closed locally.
virtual void SavedTabGroupLocalIdChanged(const base::Uuid& saved_group_id) {}
// Called when the title, tabs, or color change. `group_guid` denotes the
// group that is currently being updated. `tab_guid` denotes if a tab in this
// group was changed (added, removed, updated). Otherwise, only the group is
// being changed.
virtual void SavedTabGroupUpdatedLocally(
const base::Uuid& group_guid,
const absl::optional<base::Uuid>& tab_guid = absl::nullopt) {}
// Called when the order of tabs in an open saved tab group are changed in the
// tabstrip.
virtual void SavedTabGroupTabsReorderedLocally(const base::Uuid& group_guid) {
}
// Called when the order of saved tab groups in the bookmark bar are changed.
virtual void SavedTabGroupReorderedLocally() {}
// Happens when a group is reordered from sync.
virtual void SavedTabGroupReorderedFromSync() {}
// Called when sync / ModelTypeStore updates data.
virtual void SavedTabGroupAddedFromSync(const base::Uuid& guid) {}
// TODO(crbug/1372072): Decide if we want to also remove the tabgroup from the
// tabstrip if it is open, or just remove it from sync.
virtual void SavedTabGroupRemovedFromSync(
const SavedTabGroup* removed_group) {}
// Called when the title, tabs, or color change. `group_guid` denotes the
// group that is currently being updated. `tab_guid` denotes if a tab in this
// group was changed (added, removed, updated). Specifically, this is called
// when addressing merge conflicts for duplicate groups and tabs.
virtual void SavedTabGroupUpdatedFromSync(
const base::Uuid& group_guid,
const absl::optional<base::Uuid>& tab_guid = absl::nullopt) {}
// Called when SavedTabGroupModel::LoadStoredEntries has finished loading.
// This is currently used to notify the SavedTabGroupKeyedService to link any
// tabs restore through session restore to the corresponding SavedTabGroup
// metadata in the SavedTabGroupModel.
virtual void SavedTabGroupModelLoaded() {}
protected:
SavedTabGroupModelObserver() = default;
virtual ~SavedTabGroupModelObserver() = default;
};
#endif // COMPONENTS_SAVED_TAB_GROUPS_SAVED_TAB_GROUP_MODEL_OBSERVER_H_
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