777704 - Showing popup (overlay) for <select> may cause UI freeze

Status: RESOLVED WORKSFORME

(Firefox OS Graveyard :: General, defect)

Description

[Rudy Lu [:rudyl] (inactive after 2015/7/3)]

To support showing popups for <select>, we would draw a full-screen to show the options.
Related Gaia issue: https://github.com/mozilla-b2g/gaia/issues/2041

However, we cannot dismiss the overlay since somehow the UI may not be refreshed after that.

Repro steps:
============
1. Please try to get my test branch of Gaia
   https://github.com/RudyLu/gaia/tree/value_selector_test

2. Go to "UI Test" App > "Select Test"

3. Click the 1st select element 

4. Click "Cancel" button to dismiss the popup  -> Issue: UI not updated 
   (Note: the 2nd element is <input>, which would not cause this issue)

Comment 1

[Tim Guan-tin Chien [:timdream] (please needinfo)]

Your STR is not clear. What is the expected behavior at step 3 and/or 4? And what is the actual behavior you see?

Comment 2

[Rudy Lu [:rudyl] (inactive after 2015/7/3)]

Refine the STR as follows,
-----------------------

1. Please try to get my test branch of Gaia on B2G device (could not reproduced on B2G Desktop)
   https://github.com/RudyLu/gaia/tree/value_selector_test

2. Go to "UI Test" App > "Select Test"

3. Click the 1st select element 
    ->  The overlay will show up

4. Click "Cancel" button to dismiss the popup  
    
   -> Result expected: The overlay will disappear
   -> Actual Result:  UI not updated - after an orientation change, the UI will be updated for the overlay to disappear
   (Note: the 2nd element is <input>, which would not cause this issue)

Comment 3

[Rudy Lu [:rudyl] (inactive after 2015/7/3)]

Would not occur after I update gecko on Ototo recently.
Close it for now.