AriaRequestEvent and CommandEvent No Longer Included in Lib.Dom

[mjbvz]

TypeScript Version: 2.3.1-insiders.20170413

Bug

It looks like AriaRequestEvent and CommandEvent are no longer defined in the TypeScript 2.3 lib.dom typings definitions. We use these types one or two places in the VSCode codebase. Is this expected?

[mhegazy]

This is an intentional breaking change. AriaRequestEvent and CommandEvent were IE-specific definitions and not part of the spec. If you still need them you can include the definitions locally in your project:

interface AriaRequestEventInit extends EventInit {
    attributeName?: string;
    attributeValue?: string;
}
interface AriaRequestEvent extends Event {
    readonly attributeName: string;
    attributeValue: string | null;
}

declare var AriaRequestEvent: {
    prototype: AriaRequestEvent;
    new(type: string, eventInitDict?: AriaRequestEventInit): AriaRequestEvent;
}


interface CommandEventInit extends EventInit {
    commandName?: string;
    detail?: string;
}


interface CommandEvent extends Event {
    readonly commandName: string;
    readonly detail: string | null;
}

declare var CommandEvent: {
    prototype: CommandEvent;
    new(type: string, eventInitDict?: CommandEventInit): CommandEvent;
}