How do I manipulate the scroll bars so that a div with content that changes size is showing the same

Posted by Shaun on Stack Overflow See other posts from Stack Overflow or by Shaun
Published on 2010-03-24T15:41:10Z Indexed on 2010/03/24 15:43 UTC
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JavaScript

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div

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scrollbars

What I have is a div, for example is 800*800 px, and inside of this div is a SVG image, which can fit in the div but also can get very large, say 5000*5000 px, and I need to manipulate the scrollbars so that when the SVG has changed size the scrollbars adjust so that you are seeing the same center of your 'viewport' that you were seeing before.

The reason I use 'viewport' is because I have seen exactly what I am trying to achieve done in WPF. Initially it sets the center as the center of the SVG so that when the SVG gets larger then the container the scrollbars automatically scroll to show the center of the SVG. If the user scrolls the 'viewports' center is updated and any changes in size now center there.

I need this to be cross-browser compliant and done only with javascript.

However I really don't care what container the SVG is being bounded by.

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