@import '../variables.less';
@import 'mediawiki.mixins.rotation.less';

/* Watch/Unwatch Icon Styling */
/* Only use icon if the menu item is not collapsed into the "More" dropdown
 * (in which case it is inside .vectorMenu instead of .vectorTabs). */
.vectorTabs {
	// `#ca-unwatch` & `#ca-watch` both carry `.mw-watchlink` as well.
	@width-watchlink: unit( 28 / @font-size-tabs / @font-size-browser, em );
	@height-watchlink: unit( 40 / @font-size-tabs / @font-size-browser, em );
	@size-watchlink-icon: unit( 16 / @font-size-tabs / @font-size-browser, em );

	.mw-watchlink.icon a {
		width: @width-watchlink;
		/* This hides the text but shows the background image */
		/* Must not exceed parent's height, otherwise the background disappears on Chrome (T196610) */
		height: 0;
		padding: @height-watchlink 0 0 0;
		overflow: hidden;

		&:before {
			background-repeat: no-repeat;
			background-position: 50% 50%;
			content: '';
			display: block;
			position: absolute;
			top: unit( 14 / @font-size-tabs / @font-size-browser, em );
			left: unit( 5 / @font-size-tabs / @font-size-browser, em );
			width: @size-watchlink-icon;
			height: @size-watchlink-icon;
		}
	}

	#ca-unwatch.icon a:before {
		.background-image-svg( 'images/unwatch-icon.svg', 'images/unwatch-icon.png' );
	}

	#ca-watch.icon a:before {
		.background-image-svg( 'images/watch-icon.svg', 'images/watch-icon.png' );
	}

	#ca-unwatch.icon a:hover:before,
	#ca-unwatch.icon a:focus:before {
		.background-image-svg( 'images/unwatch-icon-hl.svg', 'images/unwatch-icon-hl.png' );
	}

	#ca-watch.icon a:hover:before,
	#ca-watch.icon a:focus:before {
		.background-image-svg( 'images/watch-icon-hl.svg', 'images/watch-icon-hl.png' );
	}

	// Loading watchstar link class.
	#ca-unwatch.icon .loading:before,
	#ca-watch.icon .loading:before {
		background-image: url( images/watch-icon-loading.svg );
		.rotation( 700ms );
		/* Suppress the hilarious rotating focus outline on Firefox */
		outline: 0;
		cursor: default;
		pointer-events: none;
		-webkit-transform-origin: 50% 50%;
		transform-origin: 50% 50%;
	}
}