lazy-widgets/dist/events/PointerButtonEvent.js

Typescript retained mode GUI for the HTML canvas API

import { PointerEvent } from './PointerEvent.js';
/**
 * A {@link PointerEvent} for button presses/releases, containing helpers for
 * checking whether it was the left/primary button, right/secondary button or
 * middle/tertiary button. Always take the button ID into account when handling
 * this event as you get a pair of {@link PointerPressEvent} and
 * {@link PointerReleaseEvent} events per button ID.
 *
 * Has a focus type decided by the child classes and does not need focus.
 *
 * @category Event
 */
export class PointerButtonEvent extends PointerEvent {
    constructor(x, y, button, shift, ctrl, alt, source, target = null) {
        super(x, y, shift, ctrl, alt, source, target);
        this.button = button;
    }
    /** Is the button affected the left/primary button? */
    get isLeft() {
        return this.button === 0;
    }
    /** Alias for {@link PointerButtonEvent#isLeft} */
    get isPrimary() {
        return this.isLeft;
    }
    /** Is the button affected the right/secondary button? */
    get isRight() {
        return this.button === 1;
    }
    /** Alias for {@link PointerButtonEvent#isRight} */
    get isSecondary() {
        return this.isRight;
    }
    /** Is the button affected the middle/tertiary button? */
    get isMiddle() {
        return this.button === 2;
    }
    /** Alias for {@link PointerButtonEvent#isMiddle} */
    get isTertiary() {
        return this.isMiddle;
    }
}
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