331325 - Drop box looses value when disabled and then re-enabled

Status: RESOLVED FIXED

(Core :: Layout: Form Controls, defect)

Description

[Tassos Maltezos]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8.0.1) Gecko/20060111 Firefox/1.5.0.1
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8.0.1) Gecko/20060111 Firefox/1.5.0.1

If a drop box has only one value and it gets diabled and then re-enabled the looses it's value and the only value that exists cannot be selected.

Reproducible: Always

Steps to Reproduce:
1. Have a drop-down box that has only one value. 
2. Disabled it. By the use of an radio that sets the drop-box disable attribute to  true
3. Re-enable it. 
4. The value disapears from the drop-down 
5. Try to select the value from the list.
6. The value cannot be selects.

Actual Results:  
Value of the drop-down is empty

Expected Results:  
The value should re-appear after enabling a drop-down

Full test case scenario:

<form name="t">
<td><input type="radio" checked name="rd1" value="enabled"   onclick="document.t.buildno.disabled=false;alert(document.t.buildno.value);document.t.buildno.text='Ego'">On</td>
<td><input type="radio" name="rd1" value="disabled"  onclick="document.t.buildno.disabled=true;">Off</td>
<BR>
<select name="buildno" class="normal08" style="width:100px;text-align:right;" >
<option value="2" selected>2</option>
</select>
</form>

Comment 1

[Dave Townsend [:mossop]]

Please attach a working testcase using the "Create a New Attachment" link above.

Comment 2

[Tassos Maltezos]

Attachment: Test case

Comment 3

[zug_treno]

WFM with Mozilla 1.8a4 but reproducible with Mozilla 1.8a5 (and SeaMonkey 1.0).

Comment 4

[Steve England [:stevee]]

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9a1) Gecko/20060323 Firefox/1.6a1 ID:2006032303
I see this too.

Comment 5

[Boris Zbarsky [:bzbarsky]]

Fixed by reflow branch landing.