fix(refresher): get scrollTop from the scroll element to prevent refr…

…eshing when dragging up

fixes #5207

ionic/components/refresher/refresher.ts

@@ -299,10 +299,10 @@ export class Refresher {
     }
 
     if (this.state === STATE_INACTIVE) {
-      // this refresh is not alreadying actively pulling down
+      // this refresh is not already actively pulling down
 
       // get the content's scrollTop
-      let scrollHostScrollTop = this._content.getScrollTop();
+      let scrollHostScrollTop = this._content.scrollElement.scrollTop;
 
       // if the scrollTop is greater than zero then it's
       // not possible to pull the content down yet

ionic/components/refresher/test/basic/index.ts

@@ -8,30 +8,30 @@ class E2EApp {
   items = [];
 
   constructor() {
-    for (var i = 0; i < 3; i++) {
+    for (var i = 0; i < 15; i++) {
       this.items.push( getRandomData() );
     }
   }
 
   doRefresh(refresher) {
-    console.log('Begin async operation');
+    console.info('Begin async operation');
 
     getAsyncData().then(newData => {
       for (var i = 0; i < newData.length; i++) {
         this.items.unshift( newData[i] );
       }
 
-      console.log('Finished receiving data, async operation complete');
+      console.info('Finished receiving data, async operation complete');
       refresher.endRefreshing();
     });
   }
 
   doStart(refresher) {
-    console.log('Refresher, start');
+    console.info('Refresher, start');
   }
 
   doPulling(refresher) {
-    console.log('Pulling', refresher.progress);
+    console.info('Pulling', refresher.progress);
   }
 
 }
@@ -82,4 +82,4 @@ const data = [
   'Next',
   'Kick-Ass',
   'Drive Angry'
-];
+];