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Bug 1305458 - Changing -moz-appearence on hover breaks change event

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* Rename nsIDOMEventTarget::PreHandleEvent to nsIDOMEventTarget::GetEventTargetParent
* Add nsIDOMEventTarget::PreHandleEvent
* Add EventTargetChainItem::GetFirstEventTarget
* Call EventTargetChainItem::PreHandleEvent even it sets mCanHandle=false
* Move form control frame focus/blur from nsGenericHTMLFormElement::GetEventTargetParent to PreHandleEvent
* Move fire change event from HTMLTextAreaElement::GetEventTargetParent to PreHandleEvent
* Refine nsXULElement::GetEventTargetParent
* Move dispatch XUL command from nsXULElement::GetEventTargetParent to PreHandleEvent
* Move fire events and set value from HTMLInputElement::GetEventTargetParent to PreHandleEvent
* Add test case
* Let HTMLInputElement delegate event handling to it's parent class
* Refine EventTargetChain flags to reduce overheads
* Refine event target chain creation
* Refine assertion in EventTargetChainItem::Create

Tag #1375
This commit is contained in:
Matt A. Tobin 2020-04-14 21:24:51 -04:00 • committed by Roy Tam
commit cb2b45e472
70 changed files with 547 additions and 258 deletions
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50
dom/events/test/test_bug1305458.html Normal file
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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1305458
-->
<head>
<title>Test for Bug 1305458</title>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<script type="application/javascript" src="/tests/SimpleTest/EventUtils.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<style>
input[type=number] {
-moz-appearance: textfield;
}
input[type=number]:focus,
input[type=number]:hover {
-moz-appearance: number-input;
}
</style>
</head>
<body onload="doTest()">
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1305458">Mozilla Bug 1305458</a>
<input id="test_input" type="number">
<div id="test_div">bar</div>
<script>
SimpleTest.waitForExplicitFinish();
var change_count = 0;
function doTest() {
let input = document.getElementById("test_input");
let div = document.getElementById("test_div");
input.addEventListener("change", () => {
++change_count;
}, false);
// mouse hover
input.focus();
synthesizeMouse(input, 1, 1, {type: "mousemove"});
synthesizeKey("1", {});
input.blur();
is(change_count, 1, "input should fire change when blur");
input.focus();
synthesizeMouse(div, 1, 1, {type: "mousemove"});
synthesizeKey("1", {});
input.blur();
is(change_count, 2, "input should fire change when blur");
SimpleTest.finish();
}
</script>
</body>
</html>