chromeos/crosapi/mojom/native_theme.mojom

// Copyright 2021 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.

module crosapi.mojom;

// Information about Ash's native theme to be propagated to lacros.
[Stable]
struct NativeThemeInfo {
  // If true, then dark mode is enabled
  // If false, then dark mode is disabled.
  bool dark_mode;
};

// Interface for native theme info observers. Implemented by lacros-chrome.
// Used by ash-chrome to send native theme info updates.
[Stable, Uuid="87938675-6596-4ddd-a0d1-3110c27651e9"]
interface NativeThemeInfoObserver {
  // Called when an observed native theme info changes, subject to throttling
  // to avoid flodding.
  OnNativeThemeInfoChanged@0(NativeThemeInfo native_theme_info);
};

// Interface that allows clients to receive info and configs related to the
// system (ash) native theme changes. Implemented by ash-chrome.
[Stable, Uuid="0500f813-27d6-4102-a5d1-0115827c1aae"]
interface NativeThemeService {
  // Adds an observer for changes in native theme info. The observer is fired
  // immediately with the current value. Multiple observers may be registered.
  AddNativeThemeInfoObserver@0(
      pending_remote<NativeThemeInfoObserver> observer);
};