// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

module tabs_api.mojom;

import "components/browser_apis/tab_strip/tab_strip_api_data_model.mojom";
import "components/browser_apis/tab_strip/tab_strip_api_types.mojom";

struct OnTabsCreatedEvent {
  // Tab ids of the newly created tabs.
  array<TabCreatedContainer> tabs;
};

struct OnNodesClosedEvent {
  // Node ids of the closed nodes.
  array<NodeId> node_ids;
};

// Fired when the data properties of an existing node have changed, but the
// node itself has not moved.
union OnDataChangedEvent {
  TabChange tab;
  TabGroupChange tab_group;
  SplitTabChange split_tab;
};

struct TabChange {
  // Updated tab data.
  Tab data;
  // Field mask indicating which fields in 'data' have changed.
  TabFieldMask mask;
};

struct TabGroupChange {
  // Updated tab group data
  TabGroup data;
};

struct SplitTabChange {
  // Updated split tab data
  SplitTab data;
};

struct OnCollectionCreatedEvent {
  // Position of the node in the tab strip.
  Position position;
  Container collection;
};

// Fired when any node in the tab strip tree is moved.
// "Node" is the generic term for any item which can be a single Tab
// or a collection (ie: TabGroup or SplitTab).
struct OnNodeMovedEvent {
  // The id of the node that moved.
  NodeId id;
  // The original position.
  Position from;
  // The new position.
  Position to;
};