498561 - Zoom (+ switching tabs) messes up the canvas and exposes checkerboard

Status: VERIFIED WORKSFORME

(Firefox for Android Graveyard :: Panning/Zooming, defect)

Description

[Mark Finkle (:mfinkle) (use needinfo?)]

Zooming into a webpage seems to move the canvas such that the left edge of the viewport is the checkerboard.

Also, if you switch between tabs with the first tab zoomed, the second tab is really messed up with the checkerboard usually the entire viewport

Comment 1

[YUKI "Piro" Hiroshi]

Is this the bug 494715?

Comment 2

[Mark Finkle (:mfinkle) (use needinfo?)]

(In reply to comment #1)
> Is this the bug 494715?

Maybe, but I only saw the problem when a page was zoomed.

Comment 3

[Vivien Nicolas (:vingtetun) (:21) - (NOT reading bugmails, needinfo? please)]

(In reply to comment #2)
> (In reply to comment #1)
> > Is this the bug 494715?
> 
> Maybe, but I only saw the problem when a page was zoomed.

The easiest way to know if this bug can be related to bug 494715 is probably to add a shortcut to switch tab in browser.xul ( <key id="key_switchTab" keycode="VK_TAB" modifiers="accel" oncommand="Browser.selectedTab = Browser._tabs[0]"/> for example) and try to switch tab without using the mouse/finger to not thrown the ws.dragStart stuff.

Comment 4

[Matt Brubeck (:mbrubeck)]

I don't see this in recent Fennec builds.

Comment 5

[Aakash Desai [:aakashd]]

Neither do I, wfm.