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| 1 | +<!DOCTYPE html> |
| 2 | +<style> |
| 3 | + body { |
| 4 | + height: 2000px; |
| 5 | + width: 2000px; |
| 6 | + } |
| 7 | +</style> |
| 8 | +<script src="../../resources/testharness.js"></script> |
| 9 | +<script src="../../resources/testharnessreport.js"></script> |
| 10 | +<script> |
| 11 | + var pageScaleFactor = 2; |
| 12 | + var pageZoomFactor = 2; |
| 13 | + var scrollbarThicknessInCSSPixels; |
| 14 | + |
| 15 | + if (window.internals) |
| 16 | + internals.settings.setVisualViewportEnabled(true); |
| 17 | + |
| 18 | + function viewport() { |
| 19 | + return window.visualViewport; |
| 20 | + } |
| 21 | + |
| 22 | + var test = async_test('Verify viewport dimensions under page zoom.'); |
| 23 | + |
| 24 | + var doAfterZooming = test.step_func(function() { |
| 25 | + window.scrollTo(0, 0); |
| 26 | + scrollbarThicknessInCSSPixels /= pageScaleFactor; |
| 27 | + |
| 28 | + // Make the layout viewport have origin (100, 100). |
| 29 | + window.scrollTo(1500, 1500); |
| 30 | + window.scrollTo(100, 100); |
| 31 | + window.scrollTo(110, 110); |
| 32 | + |
| 33 | + assert_equals(viewport().offsetTop, 10, "offsetTop with page scale"); |
| 34 | + assert_equals(viewport().offsetLeft, 10, "offsetLeft with page scale"); |
| 35 | + assert_equals(viewport().pageLeft, 110, "pageLeft with page scale"); |
| 36 | + assert_equals(viewport().pageTop, 110, "pageTop with page scale"); |
| 37 | + assert_equals(viewport().width, 400 - scrollbarThicknessInCSSPixels, "width with page scale"); |
| 38 | + assert_equals(viewport().height, 300 - scrollbarThicknessInCSSPixels, "height with page scale"); |
| 39 | + assert_equals(viewport().scale, 2, "scale with page scale"); |
| 40 | + |
| 41 | + window.internals.setPageZoomFactor(pageZoomFactor); |
| 42 | + scrollbarThicknessInCSSPixels /= pageZoomFactor; |
| 43 | + |
| 44 | + testRunner.runUIScript(getUIScript(), function(zoomScale) { |
| 45 | + // Make the layout viewport havie origin (100, 100). |
| 46 | + window.scrollTo(1500, 1500); |
| 47 | + window.scrollTo(100, 100); |
| 48 | + window.scrollTo(110, 110); |
| 49 | + |
| 50 | + assert_equals(viewport().offsetTop, 10, "offsetTop with page scale and page zoom"); |
| 51 | + assert_equals(viewport().offsetLeft, 10, "offsetLeft with page scale and page zoom"); |
| 52 | + assert_equals(viewport().pageLeft, 110, "pageLeft with page scale and page zoom"); |
| 53 | + assert_equals(viewport().pageTop, 110, "pageTop with page scale and page zoom"); |
| 54 | + assert_equals(viewport().width, |
| 55 | + 400 / pageZoomFactor - scrollbarThicknessInCSSPixels, |
| 56 | + "width with page scale and page zoom"); |
| 57 | + assert_equals(viewport().height, |
| 58 | + 300 / pageZoomFactor - scrollbarThicknessInCSSPixels, |
| 59 | + "height with page scale and page zoom"); |
| 60 | + assert_equals(viewport().scale, 2, "scale with page scale and page zoom"); |
| 61 | + |
| 62 | + test.done(); |
| 63 | + }); |
| 64 | + }); |
| 65 | + |
| 66 | + function getUIScript() { |
| 67 | + return `(function() { |
| 68 | + uiController.zoomToScale(${pageScaleFactor}, function() { |
| 69 | + uiController.uiScriptComplete(uiController.zoomScale); |
| 70 | + }); |
| 71 | + })();`; |
| 72 | + } |
| 73 | + |
| 74 | + window.onload = function() { |
| 75 | + scrollbarThicknessInCSSPixels = window.innerWidth - document.documentElement.clientWidth; |
| 76 | + testRunner.runUIScript(getUIScript(), function(zoomScale) { |
| 77 | + doAfterZooming(); |
| 78 | + }); |
| 79 | + }; |
| 80 | +</script> |
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