[Webkit-unassigned] [Bug 15443] SVGImage does not support sub-resource loading

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=15443





--- Comment #14 from Cosmin Truta <ctruta at chromium.org>  2011-01-27 16:06:46 PST ---
Here is the summary of a discussion that I had with Eric Seidel:

SVGImage is a subclass of Image and is owned by CachedImage. It lives in MemoryCache and is shared by possibly many pages. This MemoryCache only knows how to hold subresources. It does not hold whole documents, and all the complexity that a whole document implies.

The proposed CachedDocument class would handle entire documents, unlike the current cached objects that aren't designed to hold onto other cached objects.

The current design (a bit old, but still mostly true):
http://webkit.org/blog/1188/how-webkit-loads-a-web-page/

The proposed design (how the loader *should* work):
https://docs.google.com/drawings/edit?id=1ko0LFteYpoXdmfYO1rYme6t-QXLPQdI1Z_ysejpOVYk&hl=en

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