Closed Bug 310742 Opened 17 years ago Closed 17 years ago
Properties of DOM objects are listed twice or 3 times
Steps to reproduce: 1- Load provided URL 2- a) Click the "Attribute and methods of the DOCUMENT.BODY object" button or b) Click the "Attribute and methods of the EVENT object" button Actual results in Seamonkey 1.1a rv: 1.9a1 build 2005100105 and Firefox 1.4.1 rv: 1.8b5 build 20051001: a) document.object attribute and methods are listed twice b) event attribute and methods are listed 3 times Expected results: Attributes and methods should be listed once and only once. Reproducible: Always Note: - this must be a recent regression since I tried that demo not less than 2 weeks ago. - this could be a JS Engine component bug but I doubt it since the bug does not happen for other objects - if you try the DOCUMENT only button, you'll see that addEventListener is listed twice Reduced testcase coming up.
Instructions: click the [Attributes and methods of the EVENT object ...] button Expected results: only ABORT, ALT_MASK and AT_TARGET should be listed once and only once.
Perhaps caused by bug 308856? Last working version is Firefox 1.4 20050930 Confirmed regression on Firefox 1.4.1 20051001 (mac)
Status: UNCONFIRMED → NEW
Ever confirmed: true
OS: Windows XP → All
Hardware: PC → All
Version: Trunk → 1.8 Branch
Backing out the 3 patches for bug 308856 seems to fix the problem... assuming I applied the patches correctly. (But I was able to verify the issue without patching then reverse patching and the testcase only shows 1 of each again.)
I'll look into this Monday at the latest.
Assignee: general → mrbkap
blake, can you keep us up to date on your progress here? Time is very short for this release.
This was caused, specifically, by attachment 197494 [details] [diff] [review]. We are now not ignoring properties that we were ignoring before (apparently, rightly). I'm still not sure where these other properties are coming from, however.
I spoke to Brendan about this. The original patch to fix this problem was bogus (and thus caused this bug). This patch fixes the issue without the regressions but is an awful hack. Brendan said he'd think about this (and hopefully come up with a better solution). I'm attaching this in case we don't find a better one in the short-term (i.e., for the branch).
Taking from mrbkap so he can focus on WinXP drop shadow fixage. /be
Assignee: mrbkap → brendan
Flags: blocking1.8b5? → blocking1.8b5+
Priority: -- → P1
Target Milestone: --- → mozilla1.8beta5
This is must-fix for Firefox 1.5 and other Gecko rv:1.8 apps. /be
Status: NEW → ASSIGNED
No need for a goto and new label. Note also that given the current JS API in full, we can't fix this bug except by making the outerObject thing the special case that makes this enumeration work. In other words, if we don't elaborate the old logic here (!prop || obj != obj2, particularly the latter), we don't enumerate split windows. If we elaborate it to allow any obj2 not on obj's prototype chain, we fix the window enumeration case but get multiple id values enumerated per property for XPCWrappedNativeProto cases. The exact case we want is therefore peculiar to split windows, which are the only implementors of JSExtendedClass.outerObject. /be
Comment on attachment 198385 [details] [diff] [review] pretty, gentle hack Ah, much better! r=mrbkap
Attachment #198385 - Flags: review?(mrbkap) → review+
Comment on attachment 198385 [details] [diff] [review] pretty, gentle hack Self-approving, this is needed by the same token as 308856, and it's specific to split window, so no risk to other objects, and easy to prove a fix for the window case. /be
Attachment #198385 - Flags: approval1.8b5? → approval1.8b5+
Passes testcase, checked into trunk, hitting branch next. /be
Fixed on branch and trunk. /be
Status: ASSIGNED → RESOLVED
Closed: 17 years ago
Resolution: --- → FIXED
Verified. Testcase passed. (mac build)
Status: RESOLVED → VERIFIED
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