Indicates the current "pressed" state of toggle buttons.
Description

Indicates the current "pressed" state of toggle buttons. See related aria-checked and aria-selected.

Toggle buttons require a full press-and-release cycle to change their value. Activating it once changes the value to true, and activating it another time changes the value back to false. A value of mixed means that the values of more than one item controlled by the button do not all share the same value. Examples of mixed-state buttons are described in WAI-ARIA Authoring Practices [wai-aria-practices-1.1]. If the attribute is not present, the button is not a toggle button.

The aria-pressed attribute is similar but not identical to the aria-checked attribute. Operating systems support pressed on buttons and checked on checkboxes.

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