Posted by Shane O'Sullivan on May 13, 2008
I’ve previously written about the data stores I committed to the Dojo Ajax Toolkit that enable you to search Google’s services for all sorts of things – books, news, blogs, images and everything else.
Now I’ve put some demos up on DojoCampus that show off a few of the stores. Check them out at http://dojocampus.org/explorer/#Dojo_Data_GoogleSearchStore , especially the Google Images one – it’s shiny :-)
Posted in Ajax, demo, Demo Engine, dijit, Dojo, dojo.data, dojox, open source, Technical | 2 Comments »
Posted by Shane O'Sullivan on April 3, 2008
A great new demo engine has just been released for the Dojo Toolkit. Check it out at http://dojocampus.org/explorer/. It is based on the initial attempt at a demo engine I wrote a few months ago, but has since been updated with new demos, and made infinitely more sexy by css/theme master Nikolai Onken.
The features include:
- Demos for all three Dojo projects – Dojo (the base toolkit), Dijit (widgets) and DojoX (all that is newest and coolest) .
- Source views for all demos. Not only do we show what Dojo can do, we show you how to do it! The source views also benefit from the very cool dojox.highlight project, which provides client side syntax highlighting.
- Addressability - you can link directly to a demo, as I did with the dojox.highlight link above.
- Search feature – a combo box that you can use to quickly find a demo on any subject. For example, type “image” into the box, and you’ll be shown a list of all demos to do with displaying images, such as dojox.image.Gallery, dojox.image.SlideShow etc.
- Cool animated menus – totally aesthetic I know, but a very pretty addition by Peter Higgins. The menus separate the three projects, providing easier, clearer navigation.
- Link hierarchies – each set of demos can have links attached to it, for example to extra tutorials or documentation. If you click a parent of that demo, you are shown all links of all children of that section. For example, click on the DojoX link on the top of the page, and you’ll be presented with a list of all links to all DojoX projects.
- Browser Back Button management. Using the dojo.back package, you can navigate back and forward through the application using the browser’s back and forward buttons.
The demo engine is hosted on the extremely cool Dojo Campus website, which is a new learning resource for all things Dojo. It contains videos, tutorials and much more.
This version of the demo engine has many many examples in it. However, it is only the beginning, and there is a lot of room to add more content. The next step is to open the development process for community submissions of all the cool things people have done with Dojo. We will be making available the demo engine on Subversion, and writing development and submission processes to make it as easy as possible for people to contribute.
This is gonna be big!
Update: see http://ajaxian.com/archives/dojo-mini-and-the-feature-explorer for the Ajaxian post.
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Posted by Shane O'Sullivan on March 28, 2008
The latest and greatest release of the Dojo Ajax Toolkit has just hit the presses, and she’s looking good. As Alex mentioned, the number of cool features in Dojo can be difficult to keep up with, so I’ll just list some of the things I’ve either written for Dojo, helped along, or just been damn impressed by in this release:
The number of useful data stores for Dojo just keeps growing and growing, under the watchful eye of Jared. For release 1.1, I submitted a data store to read Atom XML documents, dojox.data.AtomReadStore. See more about this at http://shaneosullivan.wordpress.com/2008/02/20/new-atom-data-store-for-dojo/.
Peter Higgins submitted an amazingly simple, but oh-so-cool widget called dojox.widget.FisheyeLite. Rather than act like a ‘true’ Fisheye widget, which would generally only work on images (á la OS X), this widget can apply cool Fisheye-like behaviors to just about anything – text, divs, spans, you name it. Check out the test page for some cool examples, or see my personal website for an example of how I used it to spruce up my site menu.
Django Template Languate – dojox.dtl
This enables you perform many operations on data using just a single function call. Once of the cool things it provides is the ability to specify a function as a simple string, drastically reducing the complexity and size of your own code. Eugene Lazutkin wrote a great blog post about this, which is well worth a read. I wrote a follow up post, as a quick reference to some of the cool things you can do with this feature. Some of this was available in 1.0, but I’ve just discovered it, so here you go!
Peter Higgins, Nikolai Onken and myself have been working on a new learning resource for Dojo developers, called Dojo Campus. It provides a lot of learning materials, including videos, tutorials for beginners and more advanced programmers, and much more. We also have a still-under-wraps-but-soon-to-be-release demo engine that has loads of easy to use runtime examples of things to make and do with Dojo. I blogged about a very early version of it at http://shaneosullivan.wordpress.com/2008/01/07/dojo-demo-engine-update/, but it’s come a long way since then. Keep you eyes peeled for it’s release. Any day now…..
A very sexy Calendar widget I’ve written got submitted just a bit too late to make in into 1.1 (read: the day before release), but will be in the nightlies soon, and will make it into 1.2. See the blog post about it at http://shaneosullivan.wordpress.com/2008/03/24/sexy-new-calendar-widget-for-dojo/.
This is nowhere near a comprehensive list of course, just the bits I’ve been fiddling with over the last few months:
- See Dylan’s post for some more info.
- Get the release notes here.
- See the Ajaxian post here.
- See Alex Russell’s (Dojo project lead) post here.
So go forth and explore, it’s good healthy nerd-fun! Share this post:
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Posted by Shane O'Sullivan on January 7, 2008
A short while ago I posted about the demo engine I’m writing for the Dojo Ajax Toolkit. Click here to read that post or go to http://www.skynet.ie/~sos/js/demo/dojo/dojoc/demos/featureexplorer.html to see it in action.
Update: Version 1.0 of the demo engine has been release. See here.
Since that post, quite a lot of work has gone into both the features and the content of the demo engine, and the development process has solidified nicely. Some of the features include:
- Tree navigation. A dijit.Tree widget, reading from a remote JSON data store is used to navigate the various demos.
- Search feature. A dijit.form.ComboBox widget, reading from the same JSON data store as the tree, can be used to dynamically search for demos by matching any part of their name.
- Theme switcher. A dijit.form.ComboBox widget is used to switch between the CSS styles that Dojo provides.
- URL addressability. Using a hash identifier (e.g. #Dojo_Query_By%20Class) in the URL of the demo engine causes it to open that demo when it has finished loading. For example, if you click this link, it will open the dojo.query demo showing you how to select nodes by class name. Opening any demo changes the URL in the browser to the URL for that demo, for easy bookmarking.
- Integrated build process. A simple build script is integrated with the Dojo build process. It builds a JSON data file listing all the existing demos and their respective files. It also builds files with URL links for each demo.
To date, a lot of content has been added. Many, many widgets in Dijit and DojoX
have have been added, including the majority of the Form Controls.
The latest, pretty cool additions have been the IO and dojo.query demos. These cover things such as:
- Performing a XMLHttpRequest request
- Using an iFrame transport
- Submitting a form asynchronously
- Selecting nodes using CSS selectors with dojo.query
- Performing operations on the NodeList returned from dojo.query
- Attaching events to the NodeList returned from dojo.query
File Naming Scheme
A simple file naming scheme is used to add content to the demo framework. Each folder beneath the root folder represents a demo. Each file in a folder must be named the same as the folder, with five possible extensions. For example, given a folder with the name ‘Button‘, the possible files are:
- Button.txt – this contains the text description of the demo. It is loaded above the tabs.
- Button.links – this contains a JSON array of URL links. The build script transforms these links into HTML, and the result is loaded into the Links tab. One neat feature of this is that all links from sub folders are integrated with the parent folder and displayed in a nested structure. Do, for example, clicking on Dijit will show all the links for all widgets in the Dijit project.
- Button.full.html – this is standalone demo, that is designed to run outside the demo engine. The View tab provides a link to the external file.
- sort.txt – this contains a comma separated list of the child folders contained in this folder. It specifies the order in which to display the child demos in the tree. If this file is not specified, then an alphabetical ordering is used.
All of these files are optional. If a file in a folder does not match this naming scheme, it is assumed to be some kind of resource that the demo needs, such as an image or a JSON data file. In this case, the file can be named whatever you like.
The tree structure in the demo engine mirrors the folder layout.
Still To Do
There remains quite a lot of work ahead. There are a few bugs remaining, some more cross browser testing is needed, and of course more content is required, particularly the base Dojo package.
In the relatively near future this should be opened up to the public for development. The Dojo folks are setting up a source control server for community additions, and this demo engine should be part of that. Once that is done, people can start adding all sorts of cool stuff!
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