| # Copyright 2012 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| from telemetry import decorators |
| from telemetry.internal.actions import scroll |
| from telemetry.internal.actions import utils |
| from telemetry.testing import tab_test_case |
| |
| class ScrollActionTest(tab_test_case.TabTestCase): |
| def _MakePageVerticallyScrollable(self): |
| # Make page taller than window so it's scrollable vertically. |
| self._tab.ExecuteJavaScript('document.body.style.height =' |
| '(3 * __GestureCommon_GetWindowHeight() + 1) + "px";') |
| |
| def _MakePageHorizontallyScrollable(self): |
| # Make page wider than window so it's scrollable horizontally. |
| self._tab.ExecuteJavaScript('document.body.style.width =' |
| '(3 * __GestureCommon_GetWindowWidth() + 1) + "px";') |
| |
| def setUp(self): |
| tab_test_case.TabTestCase.setUp(self) |
| self.Navigate('blank.html') |
| utils.InjectJavaScript(self._tab, 'gesture_common.js') |
| |
| def testScrollAction(self): |
| |
| self._MakePageVerticallyScrollable() |
| self.assertEquals( |
| self._tab.EvaluateJavaScript('document.scrollingElement.scrollTop'), 0) |
| |
| i = scroll.ScrollAction() |
| i.WillRunAction(self._tab) |
| |
| self._tab.ExecuteJavaScript(""" |
| window.__scrollAction.beginMeasuringHook = function() { |
| window.__didBeginMeasuring = true; |
| }; |
| window.__scrollAction.endMeasuringHook = function() { |
| window.__didEndMeasuring = true; |
| };""") |
| i.RunAction(self._tab) |
| |
| self.assertTrue(self._tab.EvaluateJavaScript('window.__didBeginMeasuring')) |
| self.assertTrue(self._tab.EvaluateJavaScript('window.__didEndMeasuring')) |
| |
| scroll_position = self._tab.EvaluateJavaScript( |
| 'document.scrollingElement.scrollTop') |
| self.assertTrue(scroll_position != 0, |
| msg='scroll_position=%d;' % (scroll_position)) |
| |
| # https://github.com/catapult-project/catapult/issues/3099 |
| @decorators.Disabled('android') |
| def testDiagonalScrollAction(self): |
| # Diagonal scrolling was not supported in the ScrollAction until Chrome |
| # branch number 2332 |
| branch_num = self._tab.browser._browser_backend.devtools_client \ |
| .GetChromeBranchNumber() |
| if branch_num < 2332: |
| return |
| |
| self._MakePageVerticallyScrollable() |
| self.assertEquals( |
| self._tab.EvaluateJavaScript('document.scrollingElement.scrollTop'), 0) |
| |
| self._MakePageHorizontallyScrollable() |
| self.assertEquals( |
| self._tab.EvaluateJavaScript('document.scrollingElement.scrollLeft'), |
| 0) |
| |
| i = scroll.ScrollAction(direction='downright') |
| i.WillRunAction(self._tab) |
| |
| i.RunAction(self._tab) |
| |
| viewport_top = self._tab.EvaluateJavaScript( |
| 'document.scrollingElement.scrollTop') |
| self.assertTrue(viewport_top != 0, msg='viewport_top=%d;' % viewport_top) |
| |
| viewport_left = self._tab.EvaluateJavaScript( |
| 'document.scrollingElement.scrollLeft') |
| self.assertTrue(viewport_left != 0, msg='viewport_left=%d;' % viewport_left) |
| |
| def testBoundingClientRect(self): |
| # Verify that the rect returned by getBoundingVisibleRect() in scroll.js is |
| # completely contained within the viewport. Scroll events dispatched by the |
| # scrolling API use the center of this rect as their location, and this |
| # location needs to be within the viewport bounds to correctly decide |
| # between main-thread and impl-thread scroll. If the scrollable area were |
| # not clipped to the viewport bounds, then the instance used here (the |
| # scrollable area being more than twice as tall as the viewport) would |
| # result in a scroll location outside of the viewport bounds. |
| self._MakePageVerticallyScrollable() |
| self.assertEquals( |
| self._tab.EvaluateJavaScript('document.scrollingElement.scrollTop'), 0) |
| |
| self._MakePageHorizontallyScrollable() |
| self.assertEquals( |
| self._tab.EvaluateJavaScript('document.scrollingElement.scrollLeft'), |
| 0) |
| |
| self._tab.ExecuteJavaScript(""" |
| window.scrollTo(__GestureCommon_GetWindowWidth(), |
| __GestureCommon_GetWindowHeight());""") |
| |
| rect_top = int(self._tab.EvaluateJavaScript( |
| '__GestureCommon_GetBoundingVisibleRect(document.body).top')) |
| rect_height = int(self._tab.EvaluateJavaScript( |
| '__GestureCommon_GetBoundingVisibleRect(document.body).height')) |
| rect_bottom = rect_top + rect_height |
| |
| rect_left = int(self._tab.EvaluateJavaScript( |
| '__GestureCommon_GetBoundingVisibleRect(document.body).left')) |
| rect_width = int(self._tab.EvaluateJavaScript( |
| '__GestureCommon_GetBoundingVisibleRect(document.body).width')) |
| rect_right = rect_left + rect_width |
| |
| viewport_height = int(self._tab.EvaluateJavaScript( |
| '__GestureCommon_GetWindowHeight()')) |
| viewport_width = int(self._tab.EvaluateJavaScript( |
| '__GestureCommon_GetWindowWidth()')) |
| |
| self.assertTrue(rect_top >= 0, |
| msg='%s >= %s' % (rect_top, 0)) |
| self.assertTrue(rect_left >= 0, |
| msg='%s >= %s' % (rect_left, 0)) |
| self.assertTrue(rect_bottom <= viewport_height, |
| msg='%s + %s <= %s' % (rect_top, rect_height, viewport_height)) |
| self.assertTrue(rect_right <= viewport_width, |
| msg='%s + %s <= %s' % (rect_left, rect_width, viewport_width)) |
