[OpenLayers-Dev] safari bug on window resize
crschmidt at metacarta.com
Tue Oct 30 17:19:32 EDT 2007
On Tue, Oct 30, 2007 at 04:45:56PM -0400, Paul Spencer wrote:
> there seems to be a bug in Safari 3 (not sure about 2) with trunk
> where a window resize causes the tiles to disappear. Zak and I
> tracked this down to the fact that Safari does not trigger an onload
> event on the image when you set the .src of the image and it is not
> different from the current src.
Yes, I've discussed this on the list before, a couple weeks ago:
> But all this leads me to question what is happening if we are setting
> the source to the same image?
> It appears that a window resize is causing the map to redraw as if
> the zoom level has changed. This causes all the tiles to get
> cleared. I don't understand why this is necessary. There is code in
> setCenter to just move the layer container if the zoom hasn't changed
> and this seems like a reasonable thing, so why is updateSize forcing
> the zoom to change?
> I am willing to put together a patch if I can get some feedback on
> what the right solution would be:
> 1. clear src just before setting it
> 2. clear src in the clear function when we hide the imgDiv
> 3. only set the src if the new url is different from the old url,
> otherwise just show the imgDiv again
> 4. change updateSize in Map to not force a zoom level change
This won't fix the problem in its entirity -- base layer switching will
still cause the problem.
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