Ticket #18758: 19534.diff

js/admin-bar.dev.js

@@ -59 +59 @@
                         target.siblings('.ab-sub-wrapper').find('.ab-item').each(refresh);
                 });
 
+                $('#wpadminbar').click(function(e) {
+                        if(e.target.id != "wpadminbar") return;
+                        e.preventDefault();
+
+                        $('html, body').animate({ scrollTop: 0 }, 'fast');
+                });
+
         });
 } else {
         (function(d, w) {
@@ -180 +187 @@
                         return false;
                 };
 
+                scrollToTop = function(t) {
+                        if(t.id != 'wpadminbar') return;
+
+                        var startY = (function() {
+                                        if (self.pageYOffset) return self.pageYOffset;
+
+                                        if (document.body.scrollTop) return document.body.scrollTop;
+
+                                        return 0;
+                                })(),
+                                stopY = 0,
+                                distance = stopY > startY ? stopY - startY : startY - stopY;
+
+                        if (distance < 100) {
+                                scrollTo(0, stopY); return;
+                        }
+
+                        var speed = Math.round(distance / 100),
+                                step = Math.round(distance / 25),
+                                leapY = stopY > startY ? startY + step : startY - step,
+                                timer = 0;
+
+                        speed = (speed >= 20) ? 20 : speed;
+
+                        if (stopY > startY) {
+                                for ( var i=startY; i<stopY; i+=step ) {
+                                        setTimeout("window.scrollTo(0, "+leapY+")", timer * speed);
+                                        leapY += step; if (leapY > stopY) leapY = stopY; timer++;
+                                }
+
+                                return;
+                        }
+
+                        for ( var i=startY; i>stopY; i-=step ) {
+                                setTimeout("window.scrollTo(0, "+leapY+")", timer * speed);
+                                leapY -= step; if (leapY < stopY) leapY = stopY; timer++;
+                        }
+                };
+
                 addEvent(w, 'load', function() {
                         aB = d.getElementById('wpadminbar');
 
@@ -198 +244 @@
                                 });
 
                                 addEvent(aB, 'click', clickShortlink );
+
+                                addEvent(aB, 'click', function(e){
+                                        scrollToTop(e.target);
+                                });
                         }
 
                         if ( w.location.hash )