| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>Automatic scriptlevel</title> |
| <link rel="help" href="https://mathml-refresh.github.io/mathml-core/#the-mathvariant-attribute"> |
| <link rel="help" href="https://mathml-refresh.github.io/mathml-core/#the-displaystyle-and-scriptlevel-attributes"> |
| <link rel="stylesheet" href="/fonts/ahem.css"> |
| <meta name="assert" content="Verify automatic scriptlevel changes"> |
| <style> |
| #container, math { |
| /* Ahem font does not have a MATH table so the font-size scale factor |
| is always 0.71^{computed - inherited math script level} */ |
| font: 100px/1 Ahem; |
| } |
| </style> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/mathml/support/mathml-fragments.js"></script> |
| <script> |
| setup({ explicit_done: true }); |
| window.addEventListener("load", runTests); |
| function fontSize(element) { |
| return parseFloat((/(.+)px/).exec(window.getComputedStyle(element).getPropertyValue("font-size"))[1]); |
| } |
| function runTests() { |
| var container = document.getElementById("container"); |
| var epsilon = .1 |
| var fontSizeAtScriptLevelZero = fontSize(container); |
| |
| test(function() { |
| var element = document.getElementById("mfrac_displaystyle"); |
| assert_approx_equals(fontSize(element.children[0]), fontSizeAtScriptLevelZero, epsilon, "numerator"); |
| assert_approx_equals(fontSize(element.children[1]), fontSizeAtScriptLevelZero, epsilon, "denominator"); |
| }, "automatic scriptlevel on mfrac (displaystyle=true)"); |
| |
| test(function() { |
| var element = document.getElementById("mfrac_notdisplaystyle"); |
| assert_approx_equals(fontSize(element.children[0]), fontSizeAtScriptLevelZero * .71, epsilon, "numerator"); |
| assert_approx_equals(fontSize(element.children[1]), fontSizeAtScriptLevelZero * .71, epsilon, "denominator"); |
| }, "automatic scriptlevel on mfrac (displaystyle=false)"); |
| |
| test(function() { |
| var element = document.getElementsByTagName("mroot")[0]; |
| assert_approx_equals(fontSize(element.children[0]), fontSizeAtScriptLevelZero, epsilon, "base"); |
| assert_approx_equals(fontSize(element.children[1]), fontSizeAtScriptLevelZero * .71 * .71, epsilon, "index"); |
| }, "automatic scriptlevel on mroot"); |
| |
| ["msub", "msup", "msubsup", "munder", "mover", "munderover", "mmultiscripts"].forEach(tag => { |
| test(function() { |
| var element = document.getElementsByTagName(tag)[0]; |
| for (var i = 0; i < element.children.length; i++) |
| assert_approx_equals(fontSize(element.children[i]), i > 0 ? fontSizeAtScriptLevelZero * .71 : fontSizeAtScriptLevelZero, epsilon, `child ${i}`); |
| }, `automatic scriptlevel on ${tag}`); |
| }); |
| |
| test(function() { |
| var element = document.querySelector("munder[accentunder='true']"); |
| assert_approx_equals(fontSize(element.children[0]), fontSizeAtScriptLevelZero, epsilon, "base"); |
| assert_approx_equals(fontSize(element.children[1]), fontSizeAtScriptLevelZero, epsilon, "under"); |
| }, `automatic scriptlevel on munder (accentunder=true)`); |
| |
| test(function() { |
| var element = document.querySelector("mover[accent='true']"); |
| assert_approx_equals(fontSize(element.children[0]), fontSizeAtScriptLevelZero, epsilon, "base"); |
| assert_approx_equals(fontSize(element.children[1]), fontSizeAtScriptLevelZero, epsilon, "over"); |
| }, `automatic scriptlevel on mover (accent=true)`); |
| |
| test(function() { |
| var element = document.querySelector("munderover[accentunder='true']"); |
| assert_approx_equals(fontSize(element.children[0]), fontSizeAtScriptLevelZero, epsilon, "base"); |
| assert_approx_equals(fontSize(element.children[1]), fontSizeAtScriptLevelZero, epsilon, "under"); |
| assert_approx_equals(fontSize(element.children[2]), fontSizeAtScriptLevelZero * .71, epsilon, "over"); |
| }, `automatic scriptlevel on munderover (accentunder=true)`); |
| |
| test(function() { |
| var element = document.querySelector("munderover[accent='true']"); |
| assert_approx_equals(fontSize(element.children[0]), fontSizeAtScriptLevelZero, epsilon, "base"); |
| assert_approx_equals(fontSize(element.children[1]), fontSizeAtScriptLevelZero * .71, epsilon, "under"); |
| assert_approx_equals(fontSize(element.children[2]), fontSizeAtScriptLevelZero, epsilon, "over"); |
| }, `automatic scriptlevel on munderover (accent=true)`); |
| |
| test(function() { |
| var element = document.getElementById("munderover-dynamic-case-insensitive") |
| assert_approx_equals(fontSize(element.children[0]), fontSizeAtScriptLevelZero, epsilon, "base"); |
| assert_approx_equals(fontSize(element.children[1]), fontSizeAtScriptLevelZero * .71, epsilon, "under"); |
| assert_approx_equals(fontSize(element.children[2]), fontSizeAtScriptLevelZero, epsilon, "over"); |
| |
| element.removeAttribute("accent"); |
| element.setAttribute("accentunder", "TrUe"); |
| assert_approx_equals(fontSize(element.children[0]), fontSizeAtScriptLevelZero, epsilon, "base"); |
| assert_approx_equals(fontSize(element.children[1]), fontSizeAtScriptLevelZero, epsilon, "under"); |
| assert_approx_equals(fontSize(element.children[2]), fontSizeAtScriptLevelZero * .71, epsilon, "over"); |
| }, "checking dynamic/case-insensitive accent/accentunder"); |
| |
| done(); |
| } |
| </script> |
| </head> |
| <body> |
| <div id="log"></div> |
| <div id="container"> |
| <p> |
| <math displaystyle="true"> |
| <mfrac id="mfrac_displaystyle"> |
| <mn>0</mn> |
| <mn>1</mn> |
| </mfrac> |
| </math> |
| |
| <math displaystyle="false"> |
| <mfrac id="mfrac_notdisplaystyle"> |
| <mn>0</mn> |
| <mn>1</mn> |
| </mfrac> |
| </math> |
| </p> |
| <p> |
| <math> |
| <mroot> |
| <mn>0</mn> |
| <mn>1</mn> |
| </mroot> |
| </math> |
| </p> |
| <p> |
| <math> |
| <msub> |
| <mn>0</mn> |
| <mn>1</mn> |
| </msub> |
| </math> |
| <math> |
| <msup> |
| <mn>0</mn> |
| <mn>1</mn> |
| </msup> |
| </math> |
| <math> |
| <msubsup> |
| <mn>0</mn> |
| <mn>1</mn> |
| <mn>2</mn> |
| </msubsup> |
| </math> |
| <math> |
| <munder> |
| <mn>0</mn> |
| <mn>1</mn> |
| </munder> |
| </math> |
| <math> |
| <mover> |
| <mn>0</mn> |
| <mn>1</mn> |
| </mover> |
| </math> |
| <math> |
| <munderover> |
| <mn>0</mn> |
| <mn>1</mn> |
| <mn>2</mn> |
| </munderover> |
| </math> |
| <math> |
| <mmultiscripts> |
| <mn>0</mn> |
| <mn>1</mn> |
| <mn>2</mn> |
| <mn>3</mn> |
| <mn>4</mn> |
| <mprescripts/> |
| <mn>6</mn> |
| <mn>7</mn> |
| <mn>8</mn> |
| <mn>9</mn> |
| </mmultiscripts> |
| </math> |
| </p> |
| <p> |
| <math> |
| <munder accentunder="true"> |
| <mn>0</mn> |
| <mn>1</mn> |
| </munder> |
| </math> |
| <math> |
| <mover accent="true"> |
| <mn>0</mn> |
| <mn>1</mn> |
| </mover> |
| </math> |
| <math> |
| <munderover accent="true"> |
| <mn>0</mn> |
| <mn>1</mn> |
| <mn>2</mn> |
| </munderover> |
| </math> |
| <math> |
| <munderover accentunder="true"> |
| <mn>0</mn> |
| <mn>1</mn> |
| <mn>2</mn> |
| </munderover> |
| </math> |
| </p> |
| <p> |
| <math> |
| <munderover id="munderover-dynamic-case-insensitive" accent="TrUe"> |
| <mn>0</mn> |
| <mn>1</mn> |
| <mn>2</mn> |
| </munderover> |
| </math> |
| </p> |
| </div> |
| </body> |
| </html> |