/*
 * Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
 * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
 */

/**
 * Enables the tooltip, which is the tooltip is in DOM but
 * not yet displayed.
 */
@define-mixin ck-tooltip_enabled {
	& .ck-tooltip {
		display: block;

		/*
		 * Don't display tooltips in devices which don't support :hover.
		 * In fact, it's all about iOS, which forces user to click UI elements twice to execute
		 * the primary action, when tooltips are enabled.
		 *
		 * Q: OK, but why not the following query?
		 *
		 *   @media (hover) {
		 *       display: block;
		 *   }
		 *
		 * A: Because FF does not support it and it would completely disable tooltips
		 * in that browser.
		 *
		 * More in https://github.com/ckeditor/ckeditor5/issues/920.
		 */
		@media (hover:none) {
			display: none;
		}
	}
}

/**
 * Disables the tooltip making it disappear from DOM.
 */
@define-mixin ck-tooltip_disabled {
	& .ck-tooltip {
		display: none;
	}
}

/**
 * Shows the tooltip, which is already in DOM.
 * Requires `ck-tooltip_enabled` first.
 */
@define-mixin ck-tooltip_visible {
	& .ck-tooltip {
		visibility: visible;
		opacity: 1;
	}
}
