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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 14:29:10 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 14:29:10 +0000 |
| commit | 2aa4a82499d4becd2284cdb482213d541b8804dd (patch) | |
| tree | b80bf8bf13c3766139fbacc530efd0dd9d54394c /layout/style/test/test_reframe_input.html | |
| parent | Initial commit. (diff) | |
| download | firefox-upstream.tar.xz firefox-upstream.zip | |
Adding upstream version 86.0.1.upstream/86.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'layout/style/test/test_reframe_input.html')
| -rw-r--r-- | layout/style/test/test_reframe_input.html | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/layout/style/test/test_reframe_input.html b/layout/style/test/test_reframe_input.html new file mode 100644 index 0000000000..2887548abf --- /dev/null +++ b/layout/style/test/test_reframe_input.html @@ -0,0 +1,48 @@ +<!doctype html> +<meta charset="utf-8"> +<title>Test for bug 1658302: We don't reframe for placeholder attribute value changes.</title> +<link rel="author" href="mailto:emilio@crisal.io" title="Emilio Cobos Álvarez"> +<script src="/tests/SimpleTest/SimpleTest.js"></script> +<input id="input"> +<textarea id="textarea"></textarea> +<script> +SimpleTest.waitForExplicitFinish(); +const utils = SpecialPowers.DOMWindowUtils; + +function expectReframe(shouldHaveReframed, callback) { + document.documentElement.offsetTop; + const previousConstructCount = utils.framesConstructed; + const previousReflowCount = utils.framesReflowed; + + callback(); + + document.documentElement.offsetTop; + isnot(previousReflowCount, utils.framesReflowed, "We should have reflowed"); + (shouldHaveReframed ? isnot : is)(previousConstructCount, + utils.framesConstructed, + `We should ${shouldHaveReframed ? "" : "not"} have reframed`); +} + +for (const control of document.querySelectorAll("input, textarea")) { + // Creating the placeholder attribute reframes right now. + // + // TODO: Could be avoided with some more work. + expectReframe(true, () => { + control.placeholder = "foo"; + }); + + // Incrementally changing it should not reframe, just reflow. + expectReframe(false, () => { + control.placeholder = "bar"; + }); + + // Removing the placeholder attribute reframes right now. + // + // TODO: Could maybe be avoided with some more work. + expectReframe(true, () => { + control.removeAttribute("placeholder"); + }); +} + +SimpleTest.finish(); +</script> |