File: missing_event_inheritance.idl

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// 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.

// Example WebIDL schema which is invalid due to an event interface definition
// not including the required ExtensionEvent inheritance. This should raise a
// SchemaCompilerError.
interface TestWebIdl {
  // This event is correctly defined in the file.
  static attribute OnTestOneEvent onTestOne;
  // This event is missing the ExtensionEvent inheritance in the definition.
  static attribute OnMissingInheritanceEvent onTestTwo;
};

callback OnTestOneListener = undefined (DOMString argument);
callback OnMissingInheritanceListener = undefined (DOMString argument);

interface OnTestOneEvent : ExtensionEvent {
  static void addListener(OnTestOneListener listener);
  static void removeListener(OnTestOneListener listener);
  static void hasListener(OnTestOneListener listener);
};

interface OnMissingInheritanceEvent {
  static void addListener(OnMissingInheritanceListener listener);
  static void removeListener(OnMissingInheritanceListener listener);
  static void hasListener(OnMissingInheritanceListener listener);
};


partial interface Browser {
  static attribute TestWebIdl testWebIdl;
};