Change 20091118-maxcarlson-s by maxcarl...@bank on 2009-11-18 10:55:10 PST
in /Users/maxcarlson/openlaszlo/trunk-clean
for http://svn.openlaszlo.org/openlaszlo/trunk
Summary: Improve CSS sprites
Bugs Fixed: LPP-8622 - DHTML: Combine all css sprites into a single large image
Technical Reviewer: hminsky
QA Reviewer: ptw
Details: LzSprite.js - When quirks.use_css_master_sprite is on, store a path to
the master sprite and preload a copy of it. setResource() looks for a
spriteoffset, and where available uses it as the y offset in the master sprite.
Set the CSS y offset in __setBGImage() and __setFrame().
ImageMontageMaker - Refactor to build horizontal or vertical image strips.
Allow spacing between images to be compacted.
DHTMLWriter - Track all resources added to the app, then build a single master
CSS sprite image.
Tests: Now, only stretched resources need to be loaded at runtime. This cuts
the number of HTTP requests in half in many cases, e.g. webtop went from ~144
to ~72 requests with an empty cache. Image retrieval time is also improved,
and the DOM is simpler with fewer img objects.
Files:
M WEB-INF/lps/lfc/kernel/dhtml/LzSprite.js
M WEB-INF/lps/server/src/org/openlaszlo/media/ImageMontageMaker.java
M WEB-INF/lps/server/src/org/openlaszlo/utils/FileUtils.java
M WEB-INF/lps/server/src/org/openlaszlo/compiler/DHTMLWriter.java
Changeset:
http://svn.openlaszlo.org/openlaszlo/patches/20091118-maxcarlson-s.tar
_______________________________________________
Laszlo-reviews mailing list
[email protected]
http://www.openlaszlo.org/mailman/listinfo/laszlo-reviews
