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Auto merge of #12703 - sjmelia:12343_test_activation, r=Manishearth

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Fix Issue 12343: Add pref-gated methods and test for activatable element

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Add methods to activatable elements; gated by a preference, for use in servo-specific WPT tests.

I cargo-culted over the "redundant check" from #12322, I don't really understand the possible exploit.

Obvious flaw is the copypasta for each element. I understand that the webidl codegen will produce a trait for ActivatableElement, but I can't see how I can provide a default implementation for this? I guess otherwise could be an improvement to have each element just delegate to an Enter.../Exit... method on the Activatable trait?

---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #12343 (github issue number if applicable).

<!-- Either: -->
- [X] There are tests for these changes OR
- [ ] These changes do not require tests because _____

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…states

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This commit is contained in:
bors-servo 2016-09-16 20:34:25 -05:00 • committed by GitHub
commit 2fb4dd9ec3
6 changed files with 98 additions and 0 deletions
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6
tests/wpt/mozilla/meta/MANIFEST.json
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@ -6510,6 +6510,12 @@
"url": "/_mozilla/mozilla/MouseEvent.html"
}
],
"mozilla/activation.html": [
{
"path": "mozilla/activation.html",
"url": "/_mozilla/mozilla/activation.html"
}
],
"mozilla/bad_cert_detected.html": [
{
"path": "mozilla/bad_cert_detected.html",

3
tests/wpt/mozilla/meta/mozilla/activation.html.ini Normal file
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@ -0,0 +1,3 @@
[activation.html]
type: testharness
prefs: [dom.testing.element.activation.enabled:true]

52
tests/wpt/mozilla/tests/mozilla/activation.html Normal file
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@ -0,0 +1,52 @@
<!doctype html>
<html>
<head>
<meta charset="utf=8">
<title>Test of activation state</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<a id="anchor" href="#foo">anchor</a>
<button id="button">button</button>
<label id="label">Label</label>
<input type="submit" id="input" />
<span id="foo">foo</span>
</body>
<script>
function test_activation_state(element, selector) {
return function () {
element.enterFormalActivationState();
var active = document.querySelector(selector);
assert_true(active.id == element.id, selector + " was active");
element.exitFormalActivationState();
}
}
test(
test_activation_state(document.getElementById("anchor"), "a:active"),
"Activate anchor");
test(
test_activation_state(document.getElementById("button"), "button:active"),
"Activate button");
test(
test_activation_state(document.getElementById("label"), "label:active"),
"Activate label");
test(
test_activation_state(document.getElementById("input"), "input:active"),
"Activate input");
test(function () {
assert_throws(null, function () {
var foo = document.getElementById("foo");
foo.enterFormalActivationState();
});
}, "Activation invalid for span");
</script>
</html>