| <!DOCTYPE html> |
| <title>getComputedStyle for elements with css zoom</title> |
| <link rel="author" title="Yotam Hacohen" href="mailto:[email protected]"> |
| <link rel="author" title="Google" href="http://www.google.com/"> |
| <link rel="help" href="https://drafts.csswg.org/css-viewport/"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <style> |
| div { |
| width: 64px; |
| height: 64px; |
| font-size: 64px; |
| line-height: 64px; |
| text-indent: 64px; |
| background-color: blue |
| } |
| div.x4_zoom { |
| zoom: 4.0; |
| background-color: blueviolet; |
| } |
| div.x2_zoom { |
| background-color: chartreuse; |
| zoom: 2.0; |
| } |
| </style> |
| </head> |
| <body> |
| <div id="no_zoom"></div> |
| <div class="x4_zoom" id="with_zoom"></div> |
| <div class="x2_zoom" id="parent_div"> |
| <div class="x4_zoom" id="nested_zoom"></div> |
| </div> |
| <div class="x2_zoom" id="testing_set_style"></div> |
| <script> |
| const LENGTH_PROPS = [ |
| "width", |
| "height", |
| "line-height", |
| "text-indent", |
| "font-size", |
| ]; |
| test(function() { |
| assert_true(!!no_zoom, "no zoom target exists"); |
| assert_true(!!with_zoom, "zoom target exists"); |
| assert_true(!!nested_zoom, "zoom target exists"); |
| assert_true(!!parent_div, "parent div with zoom exists") |
| }); |
| function assert_length_props(style, expected) { |
| for (let prop of LENGTH_PROPS) { |
| assert_equals(style.getPropertyValue(prop), expected, prop); |
| } |
| } |
| test(function(){ |
| let noZoomStyle = getComputedStyle(no_zoom); |
| assert_length_props(noZoomStyle, "64px"); |
| assert_equals(noZoomStyle.getPropertyValue("zoom"), "1"); |
| }); |
| test(function(){ |
| let withZoomStyle = getComputedStyle(with_zoom); |
| assert_length_props(withZoomStyle, "64px"); |
| assert_equals(withZoomStyle.getPropertyValue("zoom"), "4"); |
| }); |
| test(function(){ |
| let parentWithZoomStyle = getComputedStyle(parent_div); |
| assert_length_props(parentWithZoomStyle, "64px"); |
| assert_equals(parentWithZoomStyle.getPropertyValue("zoom"), "2"); |
| }); |
| test(function(){ |
| nestedZoomStyle = getComputedStyle(nested_zoom); |
| assert_length_props(nestedZoomStyle, "64px"); |
| assert_equals(nestedZoomStyle.getPropertyValue("zoom"), "4"); |
| }); |
| test(function(){ |
| testDivStyle = getComputedStyle(testing_set_style); |
| testing_set_style.setAttribute("style", LENGTH_PROPS.map(p => p + ": 1px").join(";")); |
| assert_length_props(testDivStyle, "1px"); |
| assert_equals(testDivStyle.getPropertyValue("zoom"), "2"); |
| testing_set_style.setAttribute("style", LENGTH_PROPS.map(p => p + ": 64px").join(";")); |
| assert_length_props(testDivStyle, "64px"); |
| assert_equals(testDivStyle.getPropertyValue("zoom"), "2"); |
| }); |
| </script> |
| </body> |
