Titanium Desktop Intro

Titanium Desktop writing native desktop apps with HTML, CSS, Javascript, and friends.

About Me Marshall Culpepper Titanium Project Lead / Hacker Extraordinaire @marshall_law http://www.arcaner.com mculpepper@appcelerator.com http://github.com/marshall

Agenda • What is Titanium? • High Level Architecture, Runtime • API Overview • Guided Lab: Screengrabber

What is Titanium? • An open source framework for building native apps using web technologies • Titanium Desktop: Windows, OSX, Linux • Titanium Mobile: iPhone, Android http://appcelerator.com http://github.com/appcelerator @appcelerator #titanium_app on irc.freenode.net

Motivation • Single Site Browsers (Fluid, Prizm) • Adobe AIR • Cross platform GUI toolkits (Qt, wxWidgets, XUL, GTK) • Dynamic Languages (Ruby, Python, Javascript) • Binding layers (Jython, Rhino, JavaScriptCore) • Next gen web tech: HTML5, Gears, CSS3 • ... And lots of caffeine!

Titanium Desktop • UI with HTML5, CSS, Canvas. The best of the open web. • Support for Javascript, Ruby, Python (PHP coming soon) • Languages can be intermixed automatically. • Native desktop functionality at your ﬁngertips. • Titanium.* APIs are available in all languages • Windows (XP/SP2 -> 7), OSX (10.5->10.6, Universal), Linux (Debian based distros, Fedora, SuSE)

Desktop Architecture

The Desktop Runtime • Fully conﬁgurable distribution options: • “Bundled” : Runtime is packaged with your app, no seperate installer • “Network Install”: A native installer downloads dependencies on demand • Remove modules you don’t need to cut down on binary size • Reuse the runtime already on the user’s machine • Runtime size: OSX: ~17MB, Win32: ~15MB

UI and Notiﬁcation APIs

Filesystem API

Network API

Database API Synchronous and Asynchronous (HTML5) APIs

Process API Launch processes, read/write from pipes

And much more.. • Web Workers: Multi-threading for Javascript • Desktop: Take screenshots, open URLs, applications • Comprehensive language support: • Javascript (WebKit / close to trunk -- blazing fast) • Ruby 1.8.6 (1.9 with GVL coming soon) • Python 2.5.4 (2.6 coming soon) • PHP 5.3 (in development) • Lua (in development) • C/C++ Native bindings • Java / C# planned post-1.0

Useful Resources • Check out some of my demo apps: • http://github.com/marshall/screengrabber • http://github.com/marshall/quicksnap (Uses Ruby) • Desktop testsuite (Drillbit) • Full API doc: http://codestrong.com • Support forums: http://support.appcelerator.net

Titanium Developer • Used for creating, managing, packaging and testing your native apps. • Requires sign-up for Appcelerator Network (forum support, e-mail list, other services) • Is actually a Titanium app!

Obligatory “Hello World” Using the sandbox to quickly test and run code

Screengrabber: Our first app • An app that takes a screenshot, and shows it to the user • App walkthrough: • Create the project in Developer • Overview of config files, manifest, app layout • Quickly roundtrip prototype, show off debugging, etc

Step 1: Conﬁguration • $ROOT/tiapp.xml • Conﬁgure Windows, and their properties

Step 2: HTML, CSS, JS • clean out $ROOT/index.html • make a JS script, a CSS stylesheet

Step 3: Write the JS • APIs we need from Titanium: • Titanium.Desktop.takeScreenshot(“path/to/ﬁle”) • Titanium.Filesystem.getFile() / getDesktopDirectory()

Step 4: App!

Packaging • Once your app is written, you can use our cloud services to package and distribute your app. • Automatically packages with the conﬁg you specify, for the platforms you want to support • Built-in analytics to track who’s using your app, downloads, etc

Wrapping it up • Current release: 0.6 • 0.7 scheduled for end of Sept., 1.0 GA soon after • Come visit IRC for help, or to chat us up • #titanium_app on irc.freenode.net • Extra credit: using Python, Ruby during the hack session • And now, Lunch!

Titanium Desktop Intro

by Marshall Culpepper on Sep 05, 2009

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