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| -rw-r--r-- | dom/svg/test/test_text_scaled.html | 135 |
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diff --git a/dom/svg/test/test_text_scaled.html b/dom/svg/test/test_text_scaled.html new file mode 100644 index 0000000000..eb64905157 --- /dev/null +++ b/dom/svg/test/test_text_scaled.html @@ -0,0 +1,135 @@ +<!DOCTYPE html> +<html xmlns="http://www.w3.org/1999/xhtml"> +<!-- +https://bugzilla.mozilla.org/show_bug.cgi?id=655877 +--> +<head> + <title>Test for Bug 655877</title> + <script src="/tests/SimpleTest/SimpleTest.js"></script> + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> +</head> +<body> +<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=655877">Mozilla Bug 655877</a> +<p id="display"></p> +<div id="content" style="display: none"></div> + +<iframe id="svg" src="text-helper-scaled.svg"></iframe> + +<pre id="test"> +<script class="testbody" type="application/javascript"> +SimpleTest.waitForExplicitFinish(); + +function runTest() { + var doc = $("svg").contentWindow.document; + var text1 = doc.getElementById("text1"); + var text2 = doc.getElementById("text2"); + + var charWidth = text1.getSubStringLength(0, 1); + + if (navigator.userAgent.indexOf("Linux") > -1 && charWidth == 241) { + // Workaround for a slight difference in 'charWidth' (i.e. the width of + // the 'a' char) on Linux build machines after bug 1342951. The issue + // doesn't reproduce locally on Ubuntu 17.04 so is particularly tricky to + // debug. + charWidth = 240; + } + + var epsilon = 0.001; + + function isClose(a, b, str) { + ok(Math.abs(a - b) < epsilon, str + " - " + b + " should be close to " + a); + } + + function isPointCloseX(pt1, x, y, str) { + isClose(pt1.x, x, str + " x"); + is(pt1.y, y, str + " y"); + } + + function ymost(r) { + return r.y + r.height; + } + + var p = text1.getStartPositionOfChar(0); + + // Simple horizontal string + + is(text1.getNumberOfChars(), 3, "text1 length"); + ok(text1.getComputedTextLength() > 0, "text1 measured length"); + is(text1.getComputedTextLength(), text1.getSubStringLength(0, 3), "text1 substring length"); + isPointCloseX(text1.getStartPositionOfChar(0), 10, 400, "text1 char 0 start offset"); + isPointCloseX(text1.getStartPositionOfChar(1), 10 + charWidth, 400, "text1 char 1 start offset"); + isPointCloseX(text1.getStartPositionOfChar(2), 10 + 2 * charWidth, 400, "text1 char 2 start offset"); + isPointCloseX(text1.getEndPositionOfChar(0), 10 + charWidth, 400, "text1 char 0 end offset"); + isPointCloseX(text1.getEndPositionOfChar(1), 10 + 2 * charWidth, 400, "text1 char 1 end offset"); + isPointCloseX(text1.getEndPositionOfChar(2), 10 + 3 * charWidth, 400, "text1 char 2 end offset"); + is(text1.getExtentOfChar(0).x, 10, "text1 char 0 extent x"); + is(text1.getExtentOfChar(0).width, text1.getSubStringLength(0, 1), "text1 char 0 extent width"); + ok(text1.getExtentOfChar(0).y < 400, "text1 char 0 extent y"); + ok(ymost(text1.getExtentOfChar(0)) > 400, "text1 char 0 extent height"); + isClose(text1.getExtentOfChar(1).x, 10 + charWidth, "text1 char 1 extent x"); + is(text1.getExtentOfChar(1).width, text1.getSubStringLength(0, 1), "text1 char 1 extent width"); + is(text1.getExtentOfChar(1).y, text1.getExtentOfChar(0).y, "text1 char 0/1 extent y"); + is(text1.getExtentOfChar(1).height, text1.getExtentOfChar(0).height, "text1 char 0/1 extent height"); + is(text1.getExtentOfChar(2).x, 10 + 2 * charWidth, "text1 char 2 extent x"); + is(text1.getExtentOfChar(2).width, text1.getSubStringLength(0, 1), "text1 char 2 extent width"); + is(text1.getExtentOfChar(2).y, text1.getExtentOfChar(0).y, "text1 char 0/2 extent y"); + is(text1.getExtentOfChar(2).height, text1.getExtentOfChar(0).height, "text1 char 0/2 extent height"); + is(text1.getRotationOfChar(0), 0, "text1 char 0 rotation"); + is(text1.getRotationOfChar(1), 0, "text1 char 0 rotation"); + is(text1.getRotationOfChar(2), 0, "text1 char 0 rotation"); + p.x = 10 + 0.1; + p.y = 400; + is(text1.getCharNumAtPosition(p), 0, "text1 finding char 0 left edge"); + p.x = 10 + charWidth - 0.1; + is(text1.getCharNumAtPosition(p), 0, "text1 finding char 0 on right"); + p.x = 10 - 0.1; + is(text1.getCharNumAtPosition(p), -1, "text1 finding no char on left"); + p.x = 10 + 0.1; + p.y = text1.getExtentOfChar(0).y - 0.1; + is(text1.getCharNumAtPosition(p), -1, "text1 finding no char on top"); + p.y = text1.getExtentOfChar(0).y + 0.1; + is(text1.getCharNumAtPosition(p), 0, "text1 finding char 0 top edge"); + p.x = 10 + 3 * charWidth - 0.1; + is(text1.getCharNumAtPosition(p), 2, "text1 finding char 2 top edge"); + p.x = 10 + 3 * charWidth + 0.1; + is(text1.getCharNumAtPosition(p), -1, "text1 finding no char on right"); + + // Text along a thin rectangle path + + charWidth = text2.getSubStringLength(0, 1); + + is(text2.getNumberOfChars(), 26, "text2 length"); + ok(text2.getComputedTextLength() > 0, "text2 measured length"); + is(text2.getComputedTextLength(), text2.getSubStringLength(0, 26), "text2 substring length"); + + // character 12 should be on the bottom side + is(text2.getStartPositionOfChar(12).y, 860, "text2 char 12 start offset"); + isfuzzy(text2.getEndPositionOfChar(12).y, 860, 0.001, "text2 char 12 end offset"); + ok(text2.getExtentOfChar(12).y < 860, "text2 char 12 extent y"); + ok(ymost(text2.getExtentOfChar(12)) > 860, "text2 char 12 extent height"); + isfuzzy(text2.getRotationOfChar(12), 180, 0.001, "text2 char 12 rotation"); + p.x = text2.getExtentOfChar(12).x + 0.1; + p.y = ymost(text2.getExtentOfChar(12)) - 0.1; + is(text2.getCharNumAtPosition(p), 12, "text2 finding char 12"); + // This next test is tricky. The glyph for character 3 may overlap from the above + // but character 12 wins because it's the last to render + p.y = text2.getExtentOfChar(12).y + 0.1; + is(text2.getCharNumAtPosition(p), 12, "text2 finding last rendered char"); +} + +function runTests() { + runTest(); + + var doc = $("svg").contentWindow.document; + doc.getElementById("g").setAttribute("transform", "rotate(90 200 200)"); + + runTest(); + + SimpleTest.finish(); +} + +window.addEventListener("load", runTests); +</script> +</pre> +</body> +</html> |