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gitweb.js: Harden setting blamed commit info in incremental blame 

Internet Explorer 8 stops at beginning of blame filling with the
following bug:

  "firstChild is null or not an object"

at this line:

  a_sha1.firstChild.data = commit.sha1.substr(0, 8);

It is (probably) caused by the fact that while a_sha1 element, which
looks like this:

  <a href=""> </a>

It has a firstChild which is a text node containing only whitespace
(single space character) in other web browsers (Firefox 3.5, Opera 10,
Google Chrome 3.0), IE8 clobbers DOM, removing trailing/leading
whitespace.

Protect against this bug by creating text element if it does not
exist.

Found-by: Stephen Boyd <bebarino@gmail.com>
Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
maint
Jakub Narebski 2009-11-25 01:45:15 +01:00 committed by Junio C Hamano
parent e42a05f75c
commit 6aa2de5151
1 changed files with 6 additions and 1 deletions
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7
gitweb/gitweb.js
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@ -562,7 +562,12 @@ function handleLine(commit, group) {
td_sha1.rowSpan = group.numlines;

a_sha1.href = projectUrl + 'a=commit;h=' + commit.sha1;
a_sha1.firstChild.data = commit.sha1.substr(0, 8);
if (a_sha1.firstChild) {
a_sha1.firstChild.data = commit.sha1.substr(0, 8);
} else {
a_sha1.appendChild(
document.createTextNode(commit.sha1.substr(0, 8)));
}
if (group.numlines >= 2) {
var fragment = document.createDocumentFragment();
var br = document.createElement("br");