737797 - Page is not continuously repainted when zooming out

Status: RESOLVED WONTFIX

(Firefox for Android Graveyard :: General, defect)

Description

[Adrian Tamas (:AdrianT)]

Fennec/14.0a1 2012-03-20
Device: Motorola Droid 2 (Android 2.3)

Steps to reproduce:
1. Go to any website that returns the desktop version(cnn.com, planet.mozilla,org).
2. Wait for the page to finish loading.
3. Zoom in to the maximum level.
4. Do a pinch zoom out.

Expected results:
The page is continuously repainted when zoomed, making the transition fluent.

Actual results:
The original viewport is maintained a few seconds and the content that comes into view is displayed as black at first and then it's painted all at once.

Notes:
Please see the video for the issue:
http://youtu.be/1Svr9VvcBw0

Comment 1

[Ali Juma [:ajuma]]

When zooming, we're only repainting after the pinch ends (that is, after the screen is no longer being touched). When zooming out, this means we have no content outside the original displayport. At the very least, we should be showing checkerboarding rather than showing black as we do in the posted video.

Comment 2

[Kartikaya Gupta (email:[e-mail])]

We *should* be showing checkerboard. Checkerboard not showing up is probably because of bug 728961 or one of its dependent bugs.

Comment 3

[JP Rosevear [:jpr]]

Duplicate of 737577 ?

Comment 4

[JP Rosevear [:jpr]]

We are only going to redraw at the end at the moment, but the paint takes too long.  See bug 737577 for that.

Comment 5

[JP Rosevear [:jpr]]

Wont fixing as I was supposed to do yesterday.