commit f9c6c8496bf5713599c546971b5a7517dbe38a25
author commit-queue@webkit.org <commit-queue@webkit.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc> Fri Dec 16 10:48:05 2011 +0000
committer commit-queue@webkit.org <commit-queue@webkit.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc> Fri Dec 16 10:48:05 2011 +0000
tree a2a68bd49cbd71faf5d46ec70b462b85077adc16
parent 271a765e849fb66ca3c12ca83809301c93b3210a

[Forms] The "maxlength" attribute on "textarea" tag miscounts hard newlines
https://bugs.webkit.org/show_bug.cgi?id=74686

Patch by Yosifumi Inoue <yosin@chromium.org> on 2011-12-16
Reviewed by Kent Tamura.

Source/WebCore:

This patch counts LF in textarea value as two for LF to CRLF conversion on submission.

No new tests. Existing tests cover all changes.

* html/HTMLTextAreaElement.cpp:
(WebCore::computeLengthForSubmission): Count LF as 2 for CR LF conversion on submission.
(WebCore::HTMLTextAreaElement::handleBeforeTextInsertedEvent): Use computeLengthForSubmission instead of numGraphemeClusters.
(WebCore::HTMLTextAreaElement::tooLong): Use computeLengthForSubmission instead of numGraphemeClusters.

LayoutTests:

* fast/forms/script-tests/textarea-maxlength.js: Doubles maxlength for counting LF as two chars.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@103051 268f45cc-cd09-0410-ab3c-d52691b4dbfc