| 1 | /* -----------------------------------------------------------------------------
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| 2 | | Copyright (c) Jupyter Development Team.
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| 3 | | Distributed under the terms of the Modified BSD License.
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| 4 | |----------------------------------------------------------------------------*/
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| 5 |
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| 6 | import { Message } from '@lumino/messaging';
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| 7 | import { Widget } from '@lumino/widgets';
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| 8 |
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| 9 | /**
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| 10 | * The spinner class.
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| 11 | */
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| 12 | export class Spinner extends Widget {
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| 13 | /**
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| 14 | * Construct a spinner widget.
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| 15 | */
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| 16 | constructor() {
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| 17 | super();
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| 18 | this.addClass('jp-Spinner');
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| 19 | this.node.tabIndex = -1;
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| 20 | const content = document.createElement('div');
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| 21 | content.className = 'jp-SpinnerContent';
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| 22 | this.node.appendChild(content);
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| 23 | }
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| 24 |
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| 25 | /**
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| 26 | * Handle `'activate-request'` messages.
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| 27 | */
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| 28 | protected onActivateRequest(msg: Message): void {
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| 29 | this.node.focus();
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| 30 | }
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| 31 | }
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