517063 - Zoom threshold for pages is applied to the auto-zoom/fit for images; shouldn't be

Status: NEW

(Firefox :: General, defect)

Description

[Alex Limi (:limi) — Firefox UX Team]

To see the problem:

1. Open http://people.mozilla.com/%7Efaaborg/files/20090821-notification/newNotification-i1.png
2. Firefox zooms the image to fit the page, all well and good
3. Instead of clicking the image to show it in 1:1 size, try using the zoom (Ctrl/Cmd-+) function to zoom in on the image
4. Notice how it actually does the right thing for a while, it recalculates and re-renders the image at the new zoom level
5. On large images like this, the zoom level endpoint is hit before the image reaches 1:1 size. Hence, you can't use the zoom function to get this image all the way to its original size, you have to click it (and people sometimes don't notice that they can)

My recommendation would be to have an override when showing images only that looks to see if the image is at 1:1 size before it stops the zooming.

Comment 1

[(not currently active) Ted Mielczarek]

This was changed to do something instead of be broken in bug 389756. After full page zoom landed, image zoom was completely broken, this is not a well-designed behavior, but instead "not completely broken". To quote smaug from that bug:

(In reply to comment #17)
> It is not clear what user expects in different cases, so trying something,
> which
> at least works comparing to current broken behavior :(

Comment 2

[Olli Pettay [:smaug][[e-mail]]]

See also Bug 513912 and bug 503729.
It is tricky to get two different kinds of zooms to work nicely together.
Though, in this case I think Firefox could just not have any threshold for zooming (or it could at least allow more).

Comment 3

[Graham Perrin]

Is this still an issue?