зеркало из https://github.com/mozilla/pjs.git
84 строки
2.8 KiB
HTML
84 строки
2.8 KiB
HTML
<html>
|
|
<head>
|
|
<script type="text/javascript">
|
|
|
|
function assert(cond, msg) { if (!cond) { throw msg; } }
|
|
|
|
function isSameTM(m1, m2) {
|
|
// XXX this is probably the ugliest possible way to write this function,
|
|
// but it's intended to be lowest-common-denominator
|
|
if (!(m1.length === 6 && m1.length === m2.length)) {
|
|
return false;
|
|
}
|
|
for (var i = 0; i < m1.length; ++i) {
|
|
if (m1[i] !== m2[i]) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
window.onload = function() {
|
|
var IM = [ 1, 0, 0, 1, 0, 0 ];
|
|
|
|
try {
|
|
var ctx = document.getElementById("c1").getContext("2d");
|
|
|
|
assert(isSameTM(IM, ctx.mozCurrentTransform),
|
|
"currentTransform is identity by default");
|
|
assert(isSameTM(IM, ctx.mozCurrentTransformInverse),
|
|
"currentTransformInverse is identity by default");
|
|
|
|
var m = [ 1, 2, 3, 4, 5, 6 ];
|
|
ctx.mozCurrentTransform = m;
|
|
assert(isSameTM(m, ctx.mozCurrentTransform),
|
|
"currentTransform sucessfully set");
|
|
var badVals = [ -1,
|
|
"string",
|
|
{ obj: true },
|
|
[ "array of string" ],
|
|
[ -1 ],
|
|
[ "string", 1, 2, 3, 4, 5 ],
|
|
[ { obj: true }, 1, 2, 3, 4, 5 ],
|
|
];
|
|
for (var i = 0; i < badVals.length; ++i) {
|
|
var error = false;
|
|
try { ctx.mozCurrentTransform = badVals[i]; }
|
|
catch(e) { error = true; }
|
|
assert(error && isSameTM(m, ctx.mozCurrentTransform),
|
|
"Expected |currentTransform = "+ badVals[i] +"| to throw exception and not change .currentTransform");
|
|
|
|
error = false;
|
|
try { ctx.mozCurrentTransformInverse = badVals[i]; }
|
|
catch(e) { error = true; }
|
|
assert(error && isSameTM(m, ctx.mozCurrentTransform),
|
|
"Expected |currentTransformInverse = "+ badVals[i] +"| to throw exception and not change .currentTransform");
|
|
}
|
|
ctx.mozCurrentTransform = IM;
|
|
|
|
var noopVals = [ [ Number.NaN, 1, 2, 3, 4, 5 ],
|
|
[ Infinity, 1, 2, 3, 4, 5 ],
|
|
];
|
|
for (var i = 0; i < noopVals.length; ++i) {
|
|
ctx.mozCurrentTransform = noopVals[i];
|
|
assert(isSameTM(ctx.mozCurrentTransform, IM),
|
|
"Illegal float values result in no-ops (sigh)");
|
|
}
|
|
ctx.mozCurrentTransform = IM;
|
|
|
|
ctx.setTransform(m[0], m[1], m[2], m[3], m[4], m[5]);
|
|
assert(isSameTM(ctx.mozCurrentTransform, m),
|
|
"setTransform() updates currentTransform");
|
|
} catch (e) {
|
|
document.body.innerHTML = "FAIL: "+ e.toString();
|
|
return;
|
|
}
|
|
document.body.innerHTML = "Pass";
|
|
}
|
|
</script>
|
|
</head>
|
|
<body>
|
|
<div><canvas id="c1" width="300" height="300"></canvas></div>
|
|
</body>
|
|
</html>
|