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Grids and Pieces by Alvin Chao
- 1. <presentation> Grids & Pieces: Minimize Load Time & Increase Accessibility with RSS & CSS Alvin Chao - @chaoaj
- 2. Pieces + Grids • Optimizing Feed blocks: • Folder vs. Content Type index blocks in 6.x and 7.x • RSS feed based index blocks • Installing Velocity showcase app to aid in testing formats • Offline testing of certain Velocity Formats / Tools • YUI3 CSS Grids • Overview • Technical details • Examples
- 3. RSS content Index blocks • Create a page of xml type output and use a folder index block as the default region and use a pass- through template(similar to an SSI include template) like this: • <xhtml-block><system-region name="DEFAULT"/></xhtml-block> • Publish this out to your test server • Create a new Block of type Feed in Cascade, set the Feed Url to the url of the block you just published above and you now have an rss feed of your content type for your internal use or to allow for external consumption
- 4. Page Load times: News: 1251 news items Events: 1504 events Index Type Combo Page News Block Load Event Block Load Load Time (sec) Time (sec) Time (sec) 6.10.9 Folder 40.043 16.267 22.269 7.0.1 Folder 14.354 5.582 7.434 6.10.9 CT Index 26.628 12.351 13.015 7.0.1 CT Index 1.563 0.172 0.171 6.10.9 Folder RSS 3.224 0.565 0.419 7.0.1 Folder RSS 1.886 0.328 0.346
- 6. Velocity Showcase app • Go to http://velocity.apache.org/download.cgi • Download the Velocity-tools 2.0 and Extract • Find the /examples/showcase.war • Move this war file into the tomcat deployment folder for your test Cascade instance and restart the server / Cascade • Your new app is deployed to http://<yourserver>/showcase/
- 7. Load Showcase in Eclipse • Install eclipse from http://eclipse.org • Start Eclipse and go to Java EE perspective • File – Import – Web- War file set runtime to Apache Tomcat 6 • Run using a Tomcat Configuration
- 8. Velocity Showcase examples • Date Tool: • Can use this to test formatting a date • Escape Tool: • <p> This is an example − we ate at a café.</p> • LoopTool • Can use a lot of basic Velocity script in this example to test looping and comparison tests
- 9. Give me a <br />
- 10. YUI3 CSS GrIDS • A W3C Compliant CSS Grid system • Allows for dynamic regions for Responsive Design and also changing dynamic data • The Documentation: http://yuilibrary.com/yui/docs/cssgrids/ • The Tools: Grid Builder: http://developer.yahoo.com/yui/grids/builder/ • The Bottom line – one line to add to an existing page: • <link rel="stylesheet" type="text/css" href="http://yui.yahooapis.com/3.6.0/build/cssgrids/grids- min.css">
- 11. YUI Layouts: 24,12,8,6,5,4,3,2,1 . yui3 -u- 1-12 .yui3-u- 1-8 .yui3-u-1-6 .yui3-u-1-5 .yui3-u-1-4 .yui3-u-1-3 .yui3-u-1-2 .yui3-u-1 = Fills 100% of available width or .yui3-u Shrinks to fit unless width is applied
- 12. The Markup <body> <div class="yui3-g"> <div class="yui3-u-5-24"> First Section </div> <div class="yui3-u-19-24"> Second Section <div class="yui3-g"> <div class=“yui3-u-1-2”>1st Half</div> <div class=“yui3-u-1-2”>2nd Half</div> </div> </div> </div> </body>
- 13. Grid Examples • Hannon Hill page: • http://www.hannonhill.com • http://educ.jmu.edu/~chaoaj/csuc12/hh • Jeopardy • Demo Responsive Page Grid • Local file
- 14. ## No Comment
- 15. Thank you – Questions? </presentation> Alvin Chao E-mail: chaoaj@jmu.edu Twitter: @chaoaj Web: http://about.me/alvinchao