Skip to content

Add OpaqueRange disconnect() method #57954

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
chromium-wpt-export-bot merged 1 commit into from
Feb 20, 2026
Merged

Add OpaqueRange disconnect() method #57954

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
74 changes: 74 additions & 0 deletions dom/ranges/tentative/OpaqueRange-disconnect.html
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,74 @@
<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<body></body>
<script>
test(() => {
document.body.innerHTML = '<textarea>Hello</textarea>';
const textarea = document.body.firstElementChild;
const range = textarea.getValueRange(1, 4);

range.disconnect();

assert_equals(range.startOffset, 0, "startOffset resets to 0");
assert_equals(range.endOffset, 0, "endOffset resets to 0");
assert_true(range.collapsed, "range is collapsed");
assert_equals(range.startContainer, null, "startContainer remains null");
assert_equals(range.endContainer, null, "endContainer remains null");
assert_equals(range.getClientRects().length, 0, "no client rects");
assert_equals(range.getBoundingClientRect().width, 0, "bounding rect width is 0");
assert_equals(range.getBoundingClientRect().height, 0, "bounding rect height is 0");
}, "disconnect() resets range state and geometry.");

test(() => {
document.body.innerHTML = '<textarea>Hello</textarea>';
const textarea = document.body.firstElementChild;
const range = textarea.getValueRange(1, 4);

range.disconnect();
range.disconnect();

assert_equals(range.startOffset, 0);
assert_equals(range.endOffset, 0);
}, "disconnect() is idempotent.");

test(() => {
document.body.innerHTML = '<textarea>Hello</textarea>';
const textarea = document.body.firstElementChild;
const range = textarea.getValueRange(1, 4);

range.disconnect();
textarea.value = "World!";

assert_equals(range.startOffset, 0, "disconnected range ignores value change");
assert_equals(range.endOffset, 0);
}, "disconnect() stops live offset updates.");

test(() => {
document.body.innerHTML = '<textarea>Hello</textarea>';
const textarea = document.body.firstElementChild;
const range1 = textarea.getValueRange(0, 3);
const range2 = textarea.getValueRange(2, 5);

range1.disconnect();

assert_equals(range2.startOffset, 2, "sibling range unaffected by disconnect");
assert_equals(range2.endOffset, 5);

textarea.value = "Modified";
assert_equals(range1.startOffset, 0, "disconnected range stays at 0");
assert_equals(range2.startOffset, 0, "sibling range still receives updates");
}, "disconnect() only affects the target range.");

test(() => {
document.body.innerHTML = '<textarea>Hello</textarea>';
const textarea = document.body.firstElementChild;
const range = textarea.getValueRange(1, 4);
range.disconnect();

const newRange = textarea.getValueRange(0, 5);
assert_equals(newRange.startOffset, 0);
assert_equals(newRange.endOffset, 5);
assert_false(newRange.collapsed);
}, "Element accepts new ranges after a prior range is disconnected.");
</script>