X-Git-Url: https://scripts.mit.edu/gitweb/autoinstallsdev/mediawiki.git/blobdiff_plain/19e297c21b10b1b8a3acad5e73fc71dcb35db44a..6932310fd58ebef145fa01eb76edf7150284d8ea:/resources/src/jquery/jquery.footHovzer.js

diff --git a/resources/src/jquery/jquery.footHovzer.js b/resources/src/jquery/jquery.footHovzer.js
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+++ b/resources/src/jquery/jquery.footHovzer.js
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+/**
+ * @class jQuery.plugin.footHovzer
+ */
+( function ( $ ) {
+	var $hovzer, footHovzer, $spacer;
+
+	function getHovzer() {
+		if ( $hovzer === undefined ) {
+			$hovzer = $( '<div id="jquery-foot-hovzer"></div>' ).appendTo( 'body' );
+		}
+		return $hovzer;
+	}
+
+	/**
+	 * Utility to stack stuff in an overlay fixed on the bottom of the page.
+	 *
+	 * Usage:
+	 *
+	 *     var hovzer = $.getFootHovzer();
+	 *     hovzer.$.append( $myCollection );
+	 *     hovzer.update();
+	 *
+	 * @static
+	 * @inheritable
+	 * @return {jQuery.footHovzer}
+	 */
+	$.getFootHovzer = function () {
+		footHovzer.$ = getHovzer();
+		return footHovzer;
+	};
+
+	/**
+	 * @private
+	 * @class jQuery.footHovzer
+	 */
+	footHovzer = {
+
+		/**
+		 * @property {jQuery} $ The stack container
+		 */
+
+		/**
+		 * Update dimensions of stack to account for changes in the subtree.
+		 */
+		update: function () {
+			var $body;
+
+			$body = $( 'body' );
+
+			if ( $spacer === undefined ) {
+				$spacer = $( '<div>' ).attr( 'id', 'jquery-foot-hovzer-spacer' );
+				$spacer.appendTo( $body );
+			}
+			// Ensure CSS is applied by browser before using .outerHeight()
+			setTimeout( function () {
+				$spacer.css( 'height', getHovzer().outerHeight( /* includeMargin = */ true ) );
+			}, 0 );
+		}
+	};
+
+	/**
+	 * @class jQuery
+	 * @mixins jQuery.plugin.footHovzer
+	 */
+
+}( jQuery ) );