michael@0: package org.mozilla.gecko.tests;
michael@0: 
michael@0: import org.mozilla.gecko.Actions;
michael@0: import org.mozilla.gecko.PaintedSurface;
michael@0: 
michael@0: /**
michael@0:  * Basic test to check bounce-back from overscroll.
michael@0:  * - Load the page and verify it draws
michael@0:  * - Drag page downwards by 100 pixels into overscroll, verify it snaps back.
michael@0:  * - Drag page rightwards by 100 pixels into overscroll, verify it snaps back.
michael@0:  */
michael@0: public class testOverscroll extends PixelTest {
michael@0:     public void testOverscroll() {
michael@0:         String url = getAbsoluteUrl("/robocop/robocop_boxes.html");
michael@0: 
michael@0:         MotionEventHelper meh = new MotionEventHelper(getInstrumentation(), mDriver.getGeckoLeft(), mDriver.getGeckoTop());
michael@0: 
michael@0:         blockForGeckoReady();
michael@0: 
michael@0:         // load page and check we're at 0,0
michael@0:         loadAndVerifyBoxes(url);
michael@0: 
michael@0:         // drag page downwards by 100 pixels so that it goes into overscroll.
michael@0:         // wait for it to bounce back and check we're at the right spot.
michael@0:         // the screen size is small). Note that since we only go into overscroll
michael@0:         // and back this should NOT trigger a gecko-paint
michael@0:         Actions.RepeatedEventExpecter paintExpecter = mActions.expectPaint();
michael@0:         meh.dragSync(10, 50, 10, 150);
michael@0:         PaintedSurface painted = waitWithNoPaint(paintExpecter);
michael@0:         paintExpecter.unregisterListener();
michael@0:         try {
michael@0:             checkScrollWithBoxes(painted, 0, 0);
michael@0:         } finally {
michael@0:             painted.close();
michael@0:         }
michael@0: 
michael@0:         // drag page rightwards to go into overscroll on the left. let it bounce and verify.
michael@0:         paintExpecter = mActions.expectPaint();
michael@0:         meh.dragSync(50, 10, 150, 10);
michael@0:         painted = waitWithNoPaint(paintExpecter);
michael@0:         paintExpecter.unregisterListener();
michael@0:         try {
michael@0:             checkScrollWithBoxes(painted, 0, 0);
michael@0:         } finally {
michael@0:             painted.close();
michael@0:         }
michael@0:     }
michael@0: }