Click here to close now.

Welcome!

Adobe Flex Authors: Matthew Lobas, PR.com Newswire, Shelly Palmer, Kevin Benedict

Related Topics: Adobe Flex, ColdFusion

Adobe Flex: Article

SWFAddress - Deep Linking for Flash

A new open source project

SWFAddress is a new open source project that provides deep linking and search engine indexing for Flash Websites and applications. In other words, it enables the Back, Forward, and Reload buttons of the browser and creates unique URLs that can be sent over e-mail or IM. Recently it reached version 1.0 and quickly gained the attention of top design agencies and interactive developers. SWFAddress started as a small experiment that aimed to enhance a typical Flash Website by presenting the portfolio of a fellow photographer. It adopted all the best practices available on the Internet and became one of the best solutions among the growing number of similar libraries. After a successful release candidate, SWFAddress went beyond history management and bookmarking by providing an innovative approach for dealing with search engines. SWFAddress's way to success is based on simplicity, a rich feature set, and quality. SWFAddress is the third free software project of Asual DZZD, a small company from Sofia, Bulgaria. Previously known for its user interface framework, EnFlash, and ActionScript preprocessor, EnLarge, Asual continues to provide new ideas and solutions that target the Adobe Flash Player Platform. All the company's projects rely on the hosting services of Sourceforge.net and take part in the growing community of OSFlash.org. SWFAddress is released under the terms of the open source MIT license.

Technical facts about the project include:

  • SWPAddress is a combination of the JavaScript and ActionScript classes that communicate via the ExternalInterface introduced in Flash 8.
  • Provides three different ActionScript classes for each version of the language.
  • Supports Flash Player 8+ and all the major browsers including Mozilla Firefox, Internet Explorer, Safari, and Opera.
  • Uses mod_rewrite with PHP and UrlRewrite with JSP to provide SEO support for Google, MSN, Yahoo and Ask.
  • Comes with sample scenarios for Flash, Flex and MTASC.
SWFAddress was the first add-on for the fantastic SWFObject script by Geoff Stearns. Seamless integration with such a popular Flash embedding solution was one of the key values that attracted the developer community. The increased request for SWFAddress will probably lead to support for alternative methods such as the default Flex 2 templates or custom-made Flash writing scripts. SWFAddress can be quickly added to a Website that uses SWFObject only by inserting the JavaScript file like this:

<script type="text/javascript" src="swfobject/swfobject.js"></script>
<script type="text/javascript" src="swfaddress/swfaddress.js"></script>

The internal implementation of SWFAddress is simple and straightforward. Once a Flash movie containing the library is embedded in an HTML page, it automatically initializes itself and provides the developer with notification of state changes that need to be implemented. This might not be the easiest task for everybody, but SWFAddress streamlines the process by fully supporting testing workflow inside the Flash Program and Standalone Player. URL changes can be invoked from mouse-click events, frame actions, or HTML links.

Here is sample code that can be added to a MovieClip button:

this.onRelease = function () {

      SWFAddress.setValue("/portfolio");
}

For links in HTML-formatted TextFields, the following approach should be used:

<a href="asfunction:SWFAddress.setValue,/portfolio/">Go to Portfolio</a>

SWFAddress has a single onChange event where the navigation logic needs to be coded. The complexity may vary depending on the Website, but if it's planned from the beginning, it may improve maintainability by centralizing all the controller actions. A simple navigation handling can look like this:

SWFAddress.onChange = function () {

      var navigation = new Object();
      navigation.home = {frame: 1, title: "Welcome"};
      navigation.about = {frame: 10, title: "About Us"};
      navigation.contact = {frame: 20, title: "Contact Us"};

      var value = SWFAddress.getValue();

      website_mc.gotoAndStop(navigation[value].frame);

      SWFAddress.setTitle(navigation[value].title);
}

The setTitle method allows you to add unique titles to every section of the Website and they will appear in the browser's titlebar. It should be used inside the onChange event in order to correctly display the initial title value when the page loads.

The SEO support of SWFAddress is probably the most unique feature of the project. It enables the generation of real links that expose the appropriate content to search engines. The magic happens with some interesting URL rewriting and some trivial server-side code. The following is an example how it works for a Website located at http://www.domain.com that contains a portfolio section.

SWFAddress uses http://www.domain.com/#/portfolio/. The URL that can get indexed is http://www.domain.com/portfolio/ and therefore it should exist as a link in the HTML code of the page. When someone visits the indexed address, the rewriting functionality makes a redirect to the URL that SWFAddress expects. Everything happens transparently for the end user and further navigation through the Website correctly changes the Address bar value. The situation is different when the same link is followed by a search engine bot. In this case the address is rewritten without any redirection to http://www.domain.com/?swfaddress=/portfolio/. The page that handles all this should use a server-side technology in order to generate the appropriate content depending on the "swfaddress" parameter value.

Requests containing GET parameters such as http://www.domain.com/#/portfolio/?desc=true&year=2001 are handled similarly. The search engines will index http://www.domain.com/portfolio/?desc=true&year=2001 and the script will expect http://www.domain.com/?swfaddress=/portfolio/&desc=true&year=2001.

The result is a fully indexed Flash Website with deep linking support.

The following sample queries showcase how the SEO sample hosted at Asual.com is indexed:

http://www.google.com/search?q=site:asual.com+aliquet
http://search.yahoo.com/search?p=site:asual.com+praesent
http://search.msn.com/results.aspx?q=site:asual.com+torquent

While this approach improves the usability of Flash content over the Web, it also requires an additional effort, such as some manual work for static Websites and some smart code for dynamic ones. The best case will be a Flash CMS that automates the whole process.

Something similar has still not been created for AJAX-heavy Websites, although a part of it is documented in the Unique URLs pattern on AjaxPatterns.org. It will be great for both Flash and AJAX if a technique like this gets adopted and improved over time.

SWFAddress promises to continue adding interesting functionality like AJAX support, transparent user tracking with Google Analytics, and enhanced event handling. It should definitely be considered for your next Flash project.

More Stories By Rostislav Hristov

Rostislav Hristov works for Asual Interactive Systems. Based in Sofia, Bulgaria, Asual provides outsourcing services to clients all over the world.

Comments (0)

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


@ThingsExpo Stories
17th Cloud Expo, taking place Nov 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy. Meanwhile, 94% of enterprises are using some form of XaaS – software, platform, and infrastructure as a service.
The recent trends like cloud computing, social, mobile and Internet of Things are forcing enterprises to modernize in order to compete in the competitive globalized markets. However, enterprises are approaching newer technologies with a more silo-ed way, gaining only sub optimal benefits. The Modern Enterprise model is presented as a newer way to think of enterprise IT, which takes a more holistic approach to embracing modern technologies.
The true value of the Internet of Things (IoT) lies not just in the data, but through the services that protect the data, perform the analysis and present findings in a usable way. With many IoT elements rooted in traditional IT components, Big Data and IoT isn’t just a play for enterprise. In fact, the IoT presents SMBs with the prospect of launching entirely new activities and exploring innovative areas. CompTIA research identifies several areas where IoT is expected to have the greatest impact.
There's no doubt that the Internet of Things is driving the next wave of innovation. Google has spent billions over the past few months vacuuming up companies that specialize in smart appliances and machine learning. Already, Philips light bulbs, Audi automobiles, and Samsung washers and dryers can communicate with and be controlled from mobile devices. To take advantage of the opportunities the Internet of Things brings to your business, you'll want to start preparing now.
P2P RTC will impact the landscape of communications, shifting from traditional telephony style communications models to OTT (Over-The-Top) cloud assisted & PaaS (Platform as a Service) communication services. The P2P shift will impact many areas of our lives, from mobile communication, human interactive web services, RTC and telephony infrastructure, user federation, security and privacy implications, business costs, and scalability. In his session at @ThingsExpo, Robin Raymond, Chief Architect at Hookflash, will walk through the shifting landscape of traditional telephone and voice services ...
Explosive growth in connected devices. Enormous amounts of data for collection and analysis. Critical use of data for split-second decision making and actionable information. All three are factors in making the Internet of Things a reality. Yet, any one factor would have an IT organization pondering its infrastructure strategy. How should your organization enhance its IT framework to enable an Internet of Things implementation? In his session at Internet of @ThingsExpo, James Kirkland, Chief Architect for the Internet of Things and Intelligent Systems at Red Hat, described how to revolutioniz...
The world is at a tipping point where the technology, the device and global adoption are converging to such a point that we will see an explosion of a world where smartphone devices not only allow us to talk to each other, but allow for communication between everything – serving as a central hub from which we control our world – MediaTek is at the heart of both driving this and allowing the markets to drive this reality forward themselves. The next wave of consumer gadgets is here – smart, connected, and small. If your ambitions are big, so are ours. In his session at @ThingsExpo, Jack Hu, D...
The security devil is always in the details of the attack: the ones you've endured, the ones you prepare yourself to fend off, and the ones that, you fear, will catch you completely unaware and defenseless. The Internet of Things (IoT) is nothing if not an endless proliferation of details. It's the vision of a world in which continuous Internet connectivity and addressability is embedded into a growing range of human artifacts, into the natural world, and even into our smartphones, appliances, and physical persons. In the IoT vision, every new "thing" - sensor, actuator, data source, data con...
All major researchers estimate there will be tens of billions devices - computers, smartphones, tablets, and sensors - connected to the Internet by 2020. This number will continue to grow at a rapid pace for the next several decades. With major technology companies and startups seriously embracing IoT strategies, now is the perfect time to attend @ThingsExpo, June 9-11, 2015, at the Javits Center in New York City. Learn what is going on, contribute to the discussions, and ensure that your enterprise is as "IoT-Ready" as it can be
SYS-CON Events announced today that MetraTech, now part of Ericsson, has been named “Silver Sponsor” of SYS-CON's 16th International Cloud Expo®, which will take place on June 9–11, 2015, at the Javits Center in New York, NY. Ericsson is the driving force behind the Networked Society- a world leader in communications infrastructure, software and services. Some 40% of the world’s mobile traffic runs through networks Ericsson has supplied, serving more than 2.5 billion subscribers.
The 4th International Internet of @ThingsExpo, co-located with the 17th International Cloud Expo - to be held November 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA - announces that its Call for Papers is open. The Internet of Things (IoT) is the biggest idea since the creation of the Worldwide Web more than 20 years ago.
SYS-CON Events announced today that O'Reilly Media has been named “Media Sponsor” of SYS-CON's 16th International Cloud Expo®, which will take place on June 9–11, 2015, at the Javits Center in New York City, NY. O'Reilly Media spreads the knowledge of innovators through its books, online services, magazines, and conferences. Since 1978, O'Reilly Media has been a chronicler and catalyst of cutting-edge development, homing in on the technology trends that really matter and spurring their adoption by amplifying "faint signals" from the alpha geeks who are creating the future. An active participa...
We’re entering a new era of computing technology that many are calling the Internet of Things (IoT). Machine to machine, machine to infrastructure, machine to environment, the Internet of Everything, the Internet of Intelligent Things, intelligent systems – call it what you want, but it’s happening, and its potential is huge. IoT is comprised of smart machines interacting and communicating with other machines, objects, environments and infrastructures. As a result, huge volumes of data are being generated, and that data is being processed into useful actions that can “command and control” thi...
There will be 150 billion connected devices by 2020. New digital businesses have already disrupted value chains across every industry. APIs are at the center of the digital business. You need to understand what assets you have that can be exposed digitally, what their digital value chain is, and how to create an effective business model around that value chain to compete in this economy. No enterprise can be complacent and not engage in the digital economy. Learn how to be the disruptor and not the disruptee.
Buzzword alert: Microservices and IoT at a DevOps conference? What could possibly go wrong? In this Power Panel at DevOps Summit, moderated by Jason Bloomberg, the leading expert on architecting agility for the enterprise and president of Intellyx, panelists will peel away the buzz and discuss the important architectural principles behind implementing IoT solutions for the enterprise. As remote IoT devices and sensors become increasingly intelligent, they become part of our distributed cloud environment, and we must architect and code accordingly. At the very least, you'll have no problem fil...
There's Big Data, then there's really Big Data from the Internet of Things. IoT is evolving to include many data possibilities like new types of event, log and network data. The volumes are enormous, generating tens of billions of logs per day, which raise data challenges. Early IoT deployments are relying heavily on both the cloud and managed service providers to navigate these challenges. In her session at Big Data Expo®, Hannah Smalltree, Director at Treasure Data, discussed how IoT, Big Data and deployments are processing massive data volumes from wearables, utilities and other machines...
With major technology companies and startups seriously embracing IoT strategies, now is the perfect time to attend @ThingsExpo in Silicon Valley. Learn what is going on, contribute to the discussions, and ensure that your enterprise is as "IoT-Ready" as it can be! Internet of @ThingsExpo, taking place Nov 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 17th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The Internet of Things (IoT) is the most profound change in personal an...
The worldwide cellular network will be the backbone of the future IoT, and the telecom industry is clamoring to get on board as more than just a data pipe. In his session at @ThingsExpo, Evan McGee, CTO of Ring Plus, Inc., discussed what service operators can offer that would benefit IoT entrepreneurs, inventors, and consumers. Evan McGee is the CTO of RingPlus, a leading innovative U.S. MVNO and wireless enabler. His focus is on combining web technologies with traditional telecom to create a new breed of unified communication that is easily accessible to the general consumer. With over a de...
Disruptive macro trends in technology are impacting and dramatically changing the "art of the possible" relative to supply chain management practices through the innovative use of IoT, cloud, machine learning and Big Data to enable connected ecosystems of engagement. Enterprise informatics can now move beyond point solutions that merely monitor the past and implement integrated enterprise fabrics that enable end-to-end supply chain visibility to improve customer service delivery and optimize supplier management. Learn about enterprise architecture strategies for designing connected systems tha...
From telemedicine to smart cars, digital homes and industrial monitoring, the explosive growth of IoT has created exciting new business opportunities for real time calls and messaging. In his session at @ThingsExpo, Ivelin Ivanov, CEO and Co-Founder of Telestax, shared some of the new revenue sources that IoT created for Restcomm – the open source telephony platform from Telestax. Ivelin Ivanov is a technology entrepreneur who founded Mobicents, an Open Source VoIP Platform, to help create, deploy, and manage applications integrating voice, video and data. He is the co-founder of TeleStax, a...