| <!DOCTYPE html> |
| <style> |
| body { |
| height: 2000px; |
| width: 2000px; |
| } |
| ::-webkit-scrollbar { |
| width: 0px; |
| height: 0px; |
| } |
| </style> |
| <script src="../../../resources/testharness.js"></script> |
| <script src="../../../resources/testharnessreport.js"></script> |
| <script> |
| var browserZoomFactor = 1.25; |
| |
| function viewport() { |
| return window.visualViewport; |
| } |
| |
| var numCallsResize = 0; |
| |
| async_test(function(t) { |
| window.onload = t.step_func(function() { |
| |
| window.visualViewport.addEventListener('resize', function(e) { |
| numCallsResize++; |
| }); |
| |
| window.scrollTo(100, 100); |
| |
| // TODO(ymalik): Remove hook to internals to pinch-zoom here and browser |
| // zoom below. This will be required to upstream to w3c repo. |
| internals.setPageScaleFactor(2); |
| |
| // Offset visual viewport by 10px. |
| internals.setVisualViewportOffset(10, 10); |
| |
| assert_equals(viewport().offsetTop, 10); |
| assert_equals(viewport().offsetLeft, 10); |
| assert_equals(viewport().width, 400); |
| assert_equals(viewport().height, 300); |
| assert_equals(viewport().scale, 2); |
| |
| // Apply browser zoom. |
| window.internals.setZoomFactor(browserZoomFactor); |
| |
| requestAnimationFrame(function() { |
| t.step(function() { |
| assert_equals(numCallsResize, 1, "resize listener called for browzer zoom"); |
| // Visual viewport dimensions should be scaled by the browser zoom factor. |
| assert_equals(viewport().offsetTop, 10 / browserZoomFactor); |
| assert_equals(viewport().offsetLeft, 10 / browserZoomFactor); |
| assert_equals(viewport().width, 400 / browserZoomFactor); |
| assert_equals(viewport().height, 300 / browserZoomFactor); |
| assert_equals(viewport().scale, 2); |
| |
| t.done(); |
| }); |
| }); |
| }); |
| }, 'Verify viewport dimensions under bowser zoom.'); |
| </script> |