layout/base/tests/test_bug435293-skew.html

Thu, 22 Jan 2015 13:21:57 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 22 Jan 2015 13:21:57 +0100
branch
TOR_BUG_9701
changeset 15
b8a032363ba2
permissions
-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

michael@0 1 <!DOCTYPE HTML>
michael@0 2 <html>
michael@0 3 <!--
michael@0 4 https://bugzilla.mozilla.org/show_bug.cgi?id=435293
michael@0 5 -->
michael@0 6 <head>
michael@0 7 <title>Test for Bug 435293</title>
michael@0 8 <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
michael@0 9 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
michael@0 10
michael@0 11 <style>
michael@0 12 /* Skewed boxes can get very big. The .pane wrapper prevents them
michael@0 13 from obscuring the test results. */
michael@0 14 .pane {
michael@0 15 height: 300px;
michael@0 16 width: 300px;
michael@0 17 float: left;
michael@0 18 overflow: auto;
michael@0 19 border: 1px solid black;
michael@0 20 }
michael@0 21 .test {
michael@0 22 background: green;
michael@0 23 height: 100px;
michael@0 24 width: 100px;
michael@0 25 margin: 100px;
michael@0 26 }
michael@0 27
michael@0 28 /* Radian units are not used in this test because our CSS
michael@0 29 implementation stores all dimensional values in single-
michael@0 30 precision floating point, which makes it impossible to
michael@0 31 hit mathematically interesting angles with radians.
michael@0 32 Degrees and grads do not suffer this problem. */
michael@0 33 #test1 {
michael@0 34 -moz-transform: skewx(30deg);
michael@0 35 }
michael@0 36 #test2 {
michael@0 37 -moz-transform: skewy(60deg);
michael@0 38 }
michael@0 39 #test3 {
michael@0 40 -moz-transform: skew(45deg, 45deg);
michael@0 41 }
michael@0 42 #test4 {
michael@0 43 -moz-transform: skew(360deg, 45deg);
michael@0 44 }
michael@0 45 #test5 {
michael@0 46 -moz-transform: skew(45deg, 150grad);
michael@0 47 }
michael@0 48 #test6 {
michael@0 49 -moz-transform: skew(80%, 78px);
michael@0 50 }
michael@0 51 #test7 {
michael@0 52 -moz-transform: skew(2em, 40ex);
michael@0 53 }
michael@0 54 #test8 {
michael@0 55 -moz-transform: skew(-45deg, -465deg);
michael@0 56 }
michael@0 57 #test9 {
michael@0 58 -moz-transform: skew(30deg, 30deg, 30deg);
michael@0 59 }
michael@0 60
michael@0 61 /* approach the singularity from the negative side */
michael@0 62 #test10 {
michael@0 63 -moz-transform: skew(50grad, 90.001deg);
michael@0 64 }
michael@0 65 #test11 {
michael@0 66 -moz-transform: skew(300grad, 90.001deg);
michael@0 67 }
michael@0 68 </style>
michael@0 69 </head>
michael@0 70 <body>
michael@0 71 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=435293">Mozilla Bug 435293</a>
michael@0 72 <p id="display"></p>
michael@0 73 <div id="content">
michael@0 74 <div class="pane"><div id="test1" class="test">test</div></div>
michael@0 75 <div class="pane"><p id="test2" class="test">test</p></div>
michael@0 76 <div class="pane"><div id="test3" class="test">test</div></div>
michael@0 77 <div class="pane"><div id="test4" class="test">test</div></div>
michael@0 78 <div class="pane"><div id="test5" class="test">test</div></div>
michael@0 79 <div class="pane"><div id="test6" class="test">test</div></div>
michael@0 80 <div class="pane"><div id="test7" class="test">test</div></div>
michael@0 81 <div class="pane"><div id="test8" class="test">test</div></div>
michael@0 82 <div class="pane"><div id="test9" class="test">test</div></div>
michael@0 83 <div class="pane"><div id="test10" class="test">test</div></div>
michael@0 84 <div class="pane"><div id="test11" class="test">test</div></div>
michael@0 85 </div>
michael@0 86
michael@0 87 <pre id="test">
michael@0 88 <script type="application/javascript">
michael@0 89 runtests();
michael@0 90
michael@0 91 function runtests() {
michael@0 92 // For test 1 we need to handle the contingency that different systems may
michael@0 93 // round differently. We will parse out the values and compare them
michael@0 94 // individually. The matrix should be: matrix(1, 0, 0.57735, 1, 0, 0)
michael@0 95 var style = window.getComputedStyle(document.getElementById("test1"), "");
michael@0 96 var tformStyle = style.getPropertyValue("-moz-transform");
michael@0 97 var tformValues = tformStyle.substring(tformStyle.indexOf('(') + 1,
michael@0 98 tformStyle.indexOf(')')).split(',');
michael@0 99 is((+tformValues[0]), 1, "Test1: skewx: param 0 is 1");
michael@0 100 is((+tformValues[1]), 0, "Test1: skewx: param 1 is 0");
michael@0 101 ok(verifyRounded(tformValues[2], 0.57735), "Test1: skewx: Rounded param 2 is in bounds");
michael@0 102 is((+tformValues[3]), 1, "Test1: skewx: param 3 is 1");
michael@0 103 is((+tformValues[4]), 0, "Test1: skewx: param 4 is 0");
michael@0 104 is((+tformValues[5]), 0, "Test1: skewx: param 5 is 0");
michael@0 105
michael@0 106 // Again, handle rounding for test 2, proper matrix should be:
michael@0 107 // matrix(1, 1.73205, 0, 1, 0, 0)
michael@0 108 style = window.getComputedStyle(document.getElementById("test2"), "");
michael@0 109 tformStyle = style.getPropertyValue("-moz-transform");
michael@0 110 tformValues = tformStyle.substring(tformStyle.indexOf('(') + 1,
michael@0 111 tformStyle.indexOf(')')).split(',');
michael@0 112 is((+tformValues[0]), 1, "Test2: skewy: param 0 is 1");
michael@0 113 ok(verifyRounded(tformValues[1], 1.73205), "Test2: skewy: Rounded param 1 is in bounds");
michael@0 114 is((+tformValues[2]), 0, "Test2: skewy: param 2 is 0");
michael@0 115 is((+tformValues[3]), 1, "Test2: skewy: param 3 is 1");
michael@0 116 is((+tformValues[4]), 0, "Test2: skewy: param 4 is 0");
michael@0 117 is((+tformValues[5]), 0, "Test2: skewy: param 5 is 0");
michael@0 118
michael@0 119 style = window.getComputedStyle(document.getElementById("test3"), "");
michael@0 120 is(style.getPropertyValue("-moz-transform"), "matrix(1, 1, 1, 1, 0, 0)",
michael@0 121 "Test3: Skew proper matrix is applied");
michael@0 122
michael@0 123 style = window.getComputedStyle(document.getElementById("test4"), "");
michael@0 124 is(style.getPropertyValue("-moz-transform"), "matrix(1, 1, 0, 1, 0, 0)",
michael@0 125 "Test4: Skew angle wrap: proper matrix is applied");
michael@0 126
michael@0 127 style = window.getComputedStyle(document.getElementById("test5"), "");
michael@0 128 is(style.getPropertyValue("-moz-transform"), "matrix(1, -1, 1, 1, 0, 0)",
michael@0 129 "Test5: Skew mixing deg and grad");
michael@0 130
michael@0 131 style = window.getComputedStyle(document.getElementById("test6"), "");
michael@0 132 is(style.getPropertyValue("-moz-transform"), "none",
michael@0 133 "Test6: Skew with invalid units");
michael@0 134
michael@0 135 style = window.getComputedStyle(document.getElementById("test7"), "");
michael@0 136 is(style.getPropertyValue("-moz-transform"), "none",
michael@0 137 "Test7: Skew with more invalid units");
michael@0 138
michael@0 139 // Test 8: skew with negative degrees, here again we must handle rounding.
michael@0 140 // The matrix should be: matrix(1, 3.73206, -1, 1, 0, 0)
michael@0 141 style = window.getComputedStyle(document.getElementById("test8"), "");
michael@0 142 tformStyle = style.getPropertyValue("-moz-transform");
michael@0 143 tformValues = tformStyle.substring(tformStyle.indexOf('(') + 1,
michael@0 144 tformStyle.indexOf(')')).split(',');
michael@0 145 is(tformValues[0], 1, "Test8: Test skew with negative degrees-param 0 is 1");
michael@0 146 ok(verifyRounded(tformValues[1], 3.73206), "Test8: Rounded param 1 is in bounds");
michael@0 147 is((+tformValues[2]), -1, "Test8: param 2 is -1");
michael@0 148 is((+tformValues[3]), 1, "Test8: param 3 is 1");
michael@0 149 is((+tformValues[4]), 0, "Test8: param 4 is 0");
michael@0 150 is((+tformValues[5]), 0, "Test8: param 5 is 0");
michael@0 151
michael@0 152 style = window.getComputedStyle(document.getElementById("test9"), "");
michael@0 153 is(style.getPropertyValue("-moz-transform"), "none",
michael@0 154 "Test9: Skew in 3d should be ignored");
michael@0 155
michael@0 156 style = window.getComputedStyle(document.getElementById("test10"), "");
michael@0 157 is(style.getPropertyValue("-moz-transform"), "matrix(1, -10000, 1, 1, 0, 0)",
michael@0 158 "Test10: Skew with nearly infinite numbers");
michael@0 159
michael@0 160 style = window.getComputedStyle(document.getElementById("test11"), "");
michael@0 161 is(style.getPropertyValue("-moz-transform"), "matrix(1, -10000, 10000, 1, 0, 0)",
michael@0 162 "Test11: Skew with more infinite numbers");
michael@0 163 }
michael@0 164
michael@0 165 // Verifies that aVal is +/- 0.00001 of aTrueVal
michael@0 166 // Returns true if so, false if not
michael@0 167 function verifyRounded(aVal, aTrueVal) {
michael@0 168 return (Math.abs(aVal - aTrueVal).toFixed(5) <= 0.00001);
michael@0 169 }
michael@0 170 </script>
michael@0 171 </pre>
michael@0 172 </body>
michael@0 173 </html>

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