510809 - Setting XUL document.title won't update the base window the second time

Status: NEW

(Core :: XUL, defect, P5)

Description

[[e-mail]]

Steps to reproduce the problem:
1. Set document.title to change the title
2. Change the title via the base window (e.g. via contenttitlesetting)
3. Try to set the title back again via document.title

Expected result: title changes back again

Actual result: title does not change

This is a regression from bug 118704 because it caused the XUL document title change notification to be mediated through an attribute change.

Comment 1

[[e-mail]]

Here's some javascript you can evaluate in the Error Console to demonstrate the regression:
var Ci = Components.interfaces; top.document.title = 'Original title'; var ifreq = window.QueryInterface(Ci.nsIInterfaceRequestor); var nav = ifreq.getInterface(Ci.nsIWebNavigation); var owner = nav.QueryInterface(Ci.nsIDocShellTreeItem).treeOwner; owner.QueryInterface(Components.interfaces.nsIBaseWindow).title = 'Changed title'; top.document.title = 'Original title';

Comment 2

[[e-mail]]

Slightly shorter JavaScript:
var Ci = Components.interfaces; top.document.title = 'Original title'; var ifreq = top.QueryInterface(Ci.nsIInterfaceRequestor); var nav = ifreq.getInterface(Ci.nsIWebNavigation); nav.QueryInterface(Ci.nsIBaseWindow).title = 'Changed title'; top.document.title = 'Original title';

Comment 3

[Firefox Bug Husbandry Bot]

https://bugzilla.mozilla.org/show_bug.cgi?id=1472046

Move all DOM bugs that haven't been updated in more than 3 years and has no one currently assigned to P5.

If you have questions, please contact :mdaly.