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<!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>
|
