Issue 2063: Closing a tab and opening a new tab simultaenously causes crash
http://code.google.com/p/chromium/issues/detail?id=2063
Comment #6 by yarin.kaul:
This is what I found out:
- I do not know how the described crash could have happened as a reaction
on closing
and opening tabs. I located the CHECK() that triggered, and found out that
the
containing method is not even called when reproducing the accordion effect.
- The problem with the accordion effect is not caused by the text
disappearing.
Instead, the calculation of the tab widths goes wrong. View::GetLocalBounds
returns a
width of 0, so the minimum tab width of 31px is used.
- When you click the close tab button and press ctrl+b very fast, the
according
window messages are appearing in wrong order. This causes chrome to first
insert a
new tab, killing the insertion animation even before it could do one
animation tick,
and then removing the other tab.
So this is what is happening:
[Accelerator window message 'User pressed Ctrl+T' comes in]
TabStripModel::InsertTabContentsAt(2)
calls TabStrip::TabInsertedAt (as TabStripModelObserver)
calls TabStrip::StartInsertTabAnimation(2)
calls TabAnimation::Start()
calls SlideAnimation::Show()
calls Animation::Start()
[Window message 'User clicked the close tab button' arrives]
TabStripModel::DetachTabContentsAt(1)
calls TabStrip::TabDetachedAt (as TabStripModelObserver)
calls Tabstrip::StartRemoveTabAnimation(1)
calls TabAnimation::Stop()
calls Animation::Stop()
calls TabAnimation::Start()
calls SlideAnimation::Show()
calls Animation::Start()
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