| 1 | import Channel, { ChannelEvent, ChannelHandler } from '@storybook/channels';
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| 2 | interface Config {
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| 3 | page: 'manager' | 'preview';
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| 4 | }
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| 5 | export declare const KEY = "storybook-channel";
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| 6 | export declare class PostmsgTransport {
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| 7 | private readonly config;
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| 8 | private buffer;
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| 9 | private handler;
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| 10 | private connected;
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| 11 | constructor(config: Config);
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| 12 | setHandler(handler: ChannelHandler): void;
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| 13 | /**
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| 14 | * Sends `event` to the associated window. If the window does not yet exist
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| 15 | * the event will be stored in a buffer and sent when the window exists.
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| 16 | * @param event
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| 17 | */
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| 18 | send(event: ChannelEvent, options?: any): Promise<any>;
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| 19 | private flush;
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| 20 | private getFrames;
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| 21 | private getCurrentFrames;
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| 22 | private getLocalFrame;
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| 23 | private handleEvent;
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| 24 | }
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| 25 | /**
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| 26 | * Creates a channel which communicates with an iframe or child window.
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| 27 | */
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| 28 | export default function createChannel({ page }: Config): Channel;
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| 29 | export {};
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