fixed doublescroll

static/doublescroll.js

@@ -1,83 +1,140 @@
 /*
  * @name DoubleScroll
  * @desc displays scroll bar on top and on the bottom of the div
- * @requires jQuery, jQueryUI
+ * @requires jQuery
  *
  * @author Pawel Suwala - http://suwala.eu/
- * @version 0.3 (12-03-2014)
+ * @author Antoine Vianey - http://www.astek.fr/
+ * @version 0.5 (11-11-2015)
  *
  * Dual licensed under the MIT and GPL licenses:
  * http://www.opensource.org/licenses/mit-license.php
  * http://www.gnu.org/licenses/gpl.html
+ * 
+ * Usage:
+ * https://github.com/avianey/jqDoubleScroll
  */
- 
  (function( $ ) {
-    $.widget("suwala.doubleScroll", {
+ 	
-		options: {
+ 	jQuery.fn.doubleScroll = function(userOptions) {
+	
+		// Default options
+		var options = {
 			contentElement: undefined, // Widest element, if not specified first child element will be used
-			topScrollBarMarkup: '<div class="suwala-doubleScroll-scroll-wrapper" style="height: 20px;"><div class="suwala-doubleScroll-scroll" style="height: 20px;"></div></div>',
-			topScrollBarInnerSelector: '.suwala-doubleScroll-scroll',			
 			scrollCss: {                
-				'overflow-x': 'scroll',
+				'overflow-x': 'auto',
-				'overflow-y':'hidden'
+				'overflow-y': 'hidden',
+				'height': '20px'
 			},
 			contentCss: {
-				'overflow-x': 'scroll',
+				'overflow-x': 'auto',
 				'overflow-y': 'hidden'
-			}
 			},
-        _create : function() {
+			onlyIfScroll: true, // top scrollbar is not shown if the bottom one is not present
-            var self = this;
+			resetOnWindowResize: false, // recompute the top ScrollBar requirements when the window is resized
-			var contentElement;
+			timeToWaitForResize: 30 // wait for the last update event (usefull when browser fire resize event constantly during ressing)
+		};
 	
-            // add div that will act as an upper scroll
+		$.extend(true, options, userOptions);
-			var topScrollBar = $($(self.options.topScrollBarMarkup));
-            self.element.before(topScrollBar);
 	
-            // find the content element (should be the widest one)			
+		// do not modify
-            if (self.options.contentElement !== undefined && self.element.find(self.options.contentElement).length !== 0) {
+		// internal stuff
-                contentElement = self.element.find(self.options.contentElement);
+		$.extend(options, {
-            }
+			topScrollBarMarkup: '<div class="doubleScroll-scroll-wrapper"><div class="doubleScroll-scroll"></div></div>',
-            else {
+			topScrollBarWrapperSelector: '.doubleScroll-scroll-wrapper',
-                contentElement = self.element.find('>:first-child');
+			topScrollBarInnerSelector: '.doubleScroll-scroll'
+		});
+
+		var _showScrollBar = function($self, options) {
+
+			if (options.onlyIfScroll && $self.get(0).scrollWidth <= Math.round($self.width())) {
+				// content doesn't scroll
+				// remove any existing occurrence...
+				$self.prev(options.topScrollBarWrapperSelector).remove();
+				return;
 			}
 		
+			// add div that will act as an upper scroll only if not already added to the DOM
+			var $topScrollBar = $self.prev(options.topScrollBarWrapperSelector);
+			
+			if ($topScrollBar.length == 0) {
+				
+				// creating the scrollbar
+				// added before in the DOM
+				$topScrollBar = $(options.topScrollBarMarkup);
+				$self.before($topScrollBar);
+
+				// apply the css
+				$topScrollBar.css(options.scrollCss);
+				$(options.topScrollBarInnerSelector).css("height", "20px");
+				$self.css(options.contentCss);
+
+				var scrolling = false;
+
 				// bind upper scroll to bottom scroll
-            topScrollBar.scroll(function(){
+				$topScrollBar.bind('scroll.doubleScroll', function() {
-                self.element.scrollLeft(topScrollBar.scrollLeft());
+					if (scrolling) {
+						scrolling = false;
+						return;
+					}
+					scrolling = true;
+					$self.scrollLeft($topScrollBar.scrollLeft());
 				});
 
 				// bind bottom scroll to upper scroll
-            self.element.scroll(function(){
+				var selfScrollHandler = function() {
-                topScrollBar.scrollLeft(self.element.scrollLeft());
+					if (scrolling) {
-            });
+						scrolling = false;
-
+						return;
-            // apply css
+					}
-            topScrollBar.css(self.options.scrollCss);
+					scrolling = true;
-            self.element.css(self.options.contentCss);
+					$topScrollBar.scrollLeft($self.scrollLeft());
-
+				};
-            // set the width of the wrappers
+				$self.bind('scroll.doubleScroll', selfScrollHandler);
-            $(self.options.topScrollBarInnerSelector, topScrollBar).width(contentElement[0].scrollWidth);
+			}
-            topScrollBar.width(self.element[0].clientWidth);
-        },
-        refresh: function(){
-            // this should be called if the content of the inner element changed.
-            // i.e. After AJAX data load
-            var self = this;
-			var contentElement;
-            var topScrollBar = self.element.parent().find('.suwala-doubleScroll-scroll-wrapper');
 
 			// find the content element (should be the widest one)	
-            if (self.options.contentElement !== undefined && self.element.find(self.options.contentElement).length !== 0) {
+			var $contentElement;		
-                contentElement = self.element.find(self.options.contentElement);
+			
-            }
+			if (options.contentElement !== undefined && $self.find(options.contentElement).length !== 0) {
-            else {
+				$contentElement = $self.find(options.contentElement);
-                contentElement = self.element.find('>:first-child');
+			} else {
+				$contentElement = $self.find('>:first-child');
 			}
 			
 			// set the width of the wrappers
-            $(self.options.topScrollBarInnerSelector, topScrollBar).width(contentElement[0].scrollWidth);
+			$(options.topScrollBarInnerSelector, $topScrollBar).width($contentElement.outerWidth());
-            topScrollBar.width(self.element[0].clientWidth);
+			$topScrollBar.width($self.width());
+			$topScrollBar.scrollLeft($self.scrollLeft());
+			
 		}
+	
+		return this.each(function() {
+			
+			var $self = $(this);
+			
+			_showScrollBar($self, options);
+			
+			// bind the resize handler 
+			// do it once
+			if (options.resetOnWindowResize) {
+			
+				var id;
+				var handler = function(e) {
+					_showScrollBar($self, options);
+				};
+			
+				$(window).bind('resize.doubleScroll', function() {
+					// adding/removing/replacing the scrollbar might resize the window
+					// so the resizing flag will avoid the infinite loop here...
+					clearTimeout(id);
+					id = setTimeout(handler, options.timeToWaitForResize);
 				});
-})(jQuery);
+
+			}
+
+		});
+
+	}
+
+}( jQuery ));

sw.js

@@ -1,4 +1,4 @@
-var cacheName = 'telesec_2025-05-29_1';
+var cacheName = 'telesec_2025-05-29_2';
 
 self.addEventListener('install', event => {
   event.waitUntil(