1248185 - Caret moves in cycles when I hold Right arrow in [contenteditable] element

Status: RESOLVED FIXED

(Core :: DOM: Editor, defect)

Description

[arni2033]

>>>   My Info:   Win7_64, Nightly 47, 32bit, ID 20160210071115
STR:
1. Open http://jsbin.com/bisahaqote/edit?html,css,output (from bug 1143742 comment 4)
2. In the "Output" pane, click between "s" and "t" in the first word "test" in that pane
3. Hold Right arrow for 10 seconds

AR:  Caret moves in cycles: when it reaches the end of last line, it teleports to second line
ER:  Caret should reach the end of last line and stay still

This is regression from bug 1153237.
Regression range:
> https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=fc4fd9433e216058359c5337cb86b131e55ee63b&tochange=c206ee0a4809e515294aee998fa0b249a7fe1a16

Comment 1

[Alice0775 White]

Attachment: reduced html

Comment 2

[Jonathan Kew [:jfkthame]]

Attachment: Test for spurious looping behavior of selection

Testcase based on the example here; fails on current trunk. This will pass after the patch in bug 1248128.

Comment 3

[Jonathan Kew [:jfkthame]]

https://hg.mozilla.org/integration/mozilla-inbound/rev/ee60dc3d06556a23222a8c25a93aaa818ccca9b9
Bug 1248185 - Test for spurious looping behavior of selection. r=roc

Comment 4

[Carsten Book [:Tomcat]]

https://hg.mozilla.org/mozilla-central/rev/ee60dc3d0655