Bug 51344

Summary:

[RTL] WebKit hangs when moving caret in mixed Bidi text

Product:

WebKit

Reporter:

Ryosuke Niwa <rniwa>

Component:

HTML Editing

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

darin, enrica, mitz, xji

Priority:

Version:

528+ (Nightly build)

Hardware:

All

OS:

All

Attachments:

Description	Flags
demo	none
patch w/ layout test	mitz: review+

Description Ryosuke Niwa 2010-12-20 12:00:31 PST

Created attachment 77021 [details]
demo

This is a variant of the bug 49111.  Open the attachment and WebKit hangs inside VisiblePosition::rightVisuallyDistinctCandidate:

                box = nextBox;
                renderer = box->renderer();
                offset = box->caretLeftmostOffset();
                if (box->bidiLevel() > level) {
                    do {
                        nextBox = box->nextLeafChild();
                    } while (nextBox && nextBox->bidiLevel() > level);
                    // we get stuck in this while loop.

                    if (!nextBox || nextBox->bidiLevel() < level)
                        continue;
                }

Comment 1 Xiaomei Ji 2010-12-20 19:59:55 PST

Created attachment 77076 [details]
patch w/ layout test

Comment 2 Xiaomei Ji 2010-12-20 20:13:50 PST

Committed r74385: <http://trac.webkit.org/changeset/74385>