adobe / spectrum-web-components / 12802187570

/*

Copyright 2024 Adobe. All rights reserved.

This file is licensed to you under the Apache License, Version 2.0 (the "License");

you may not use this file except in compliance with the License. You may obtain a copy

of the License at http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under

the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS

OF ANY KIND, either express or implied. See the License for the specific language

governing permissions and limitations under the License.

*/

import {

    InteractionController,

    InteractionTypes,

} from './InteractionController.js';

export class DesktopController extends InteractionController {

    override type = InteractionTypes.desktop;

    public override handlePointerdown(event: PointerEvent): void {

        this.pointerdownState = this.open;

        this.preventNextToggle = 'maybe';

        let cleanupAction = 0;

        const cleanup = (): void => {

            cancelAnimationFrame(cleanupAction);

            cleanupAction = requestAnimationFrame(async () => {

                document.removeEventListener('pointerup', cleanup);

                document.removeEventListener('pointercancel', cleanup);

                this.target.removeEventListener('click', cleanup);

                requestAnimationFrame(() => {

                    // Complete cleanup on the second animation frame so that `click` can go first.

                    this.preventNextToggle = 'no';

                });

            });

        };

        // Ensure that however the pointer goes up we do `cleanup()`.

        document.addEventListener('pointerup', cleanup);

        document.addEventListener('pointercancel', cleanup);

        this.target.addEventListener('click', cleanup);

        this.handleActivate();

    }

    public override handleActivate(event?: Event): void {

        if (this.preventNextToggle === 'yes') {

            return;

        }

        if (event?.type === 'click' && this.open !== this.pointerdownState) {

            // When activation comes from a `click` event ensure that the `pointerup`

            // event didn't already toggle the Picker state before doing so.

            return;

        }

        this.host.toggle();

    }

    override init(): void {

        // Clean up listeners if they've already been bound

        this.abortController?.abort();

        this.abortController = new AbortController();

        const { signal } = this.abortController;

        this.target.addEventListener(

            'click',

            (event: Event) => this.handleActivate(event),

            {

                signal,

            }

        );

        this.target.addEventListener(

            'pointerdown',

            (event: PointerEvent) => this.handlePointerdown(event),

            { signal }

        );

        this.target.addEventListener(

            'focus',

            (event: FocusEvent) => this.handleButtonFocus(event),

            {

                signal,

            }

        );

    }

}