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Bug 109993 - Use row top difference to keep scroll position.

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ChatZilla only.
r=samuel
This commit is contained in:
silver%warwickcompsoc.co.uk 2006-11-19 16:03:14 +00:00
parent f7c0b484be
commit eba72bb63f
1 changed files with 15 additions and 30 deletions
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45
extensions/irc/xul/content/static.js
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@ -78,7 +78,6 @@ client.MAX_HISTORY = 50;
client.MAX_NICK_DISPLAY = 14;
/* longest word to show in display before abbreviating */
client.MAX_WORD_DISPLAY = 20;
client.PRINT_DIRECTION = 1; /*1 => new messages at bottom, -1 => at top */
client.MAX_MSG_PER_ROW = 3; /* default number of messages to collapse into a
* single row, max. */
@ -2816,8 +2815,7 @@ function setCurrentObject (obj)
updateProgress();
updateSecurityIcon();
if (client.PRINT_DIRECTION == 1)
scrollDown(obj.frame, false);
scrollDown(obj.frame, false);
// Input area should have the same direction as the output area
if (("frame" in client.currentObject) &&
@ -4317,36 +4315,23 @@ function addHistory (source, obj, mergeData)
if (source.messageCount > source.MAX_MESSAGES)
{
if (client.PRINT_DIRECTION == 1)
// Get the top of row 2, and subtract the top of row 1.
var height = tbody.firstChild.nextSibling.firstChild.offsetTop -
tbody.firstChild.firstChild.offsetTop;
var window = getContentWindow(source.frame);
var x = window.pageXOffset;
var y = window.pageYOffset;
tbody.removeChild (tbody.firstChild);
--source.messageCount;
while (tbody.firstChild && tbody.firstChild.childNodes[1] &&
tbody.firstChild.childNodes[1].getAttribute("class") ==
"msg-data")
{
var height = tbody.firstChild.scrollHeight;
var window = getContentWindow(source.frame);
var x = window.pageXOffset;
var y = window.pageYOffset;
--source.messageCount;
tbody.removeChild (tbody.firstChild);
--source.messageCount;
while (tbody.firstChild && tbody.firstChild.childNodes[1] &&
tbody.firstChild.childNodes[1].getAttribute("class") ==
"msg-data")
{
--source.messageCount;
tbody.removeChild (tbody.firstChild);
}
if (!checkScroll(source.frame) && (y > height))
window.scrollTo(x, y - height);
}
else
{
tbody.removeChild (tbody.lastChild);
--source.messageCount;
while (tbody.lastChild && tbody.lastChild.childNodes[1] &&
tbody.lastChild.childNodes[1].getAttribute("class") ==
"msg-data")
{
--source.messageCount;
tbody.removeChild (tbody.lastChild);
}
}
if (!checkScroll(source.frame) && (y > height))
window.scrollTo(x, y - height);
}
}