Hey everyone, I've been playing with the dev channel of Chrome and discovered something huge: background pages for web apps! This means your web app can now run even when the browser is closed, or even after system start-up. It's crazy powerful. You enable this by adding the "background" permission to your app manifest and then using a simple window.open() call with a special third parameter. The background page's state can be toggled with window.close(). Communication between the background page and your app is done using SharedWorkers. Oh, and Appmator now supports this too!
In appmator, I wanted to avoid traditional web elements like 'Save As' buttons. Instead, I implemented a drag-to-desktop feature using Chrome's drag-and-drop functionality. By setting a 'DownloadURL' with a data URI or regular URL on the 'dragstart' event, users can drag data directly to their desktop. This method bypasses the need for a save button. The code example demonstrates how to use the dataTransfer.setData() method with the DownloadURL type. It leverages the JSZip library to generate ZIP files as data URIs for dragging. This approach is Chrome-specific and has no feature detection available.
The Chrome Web Store isn't just about HTML5 and JavaScript; Flash plays a crucial role too! Flash apps and games are readily available in the store, with examples like Vyew and Paltalk showcasing functionalities not yet fully achievable with HTML5, such as webcam access. Getting your Flash content into the store is easy, either by using Appmator or directly packaging your SWF file. The store handles distribution and updates, eliminating bandwidth costs for developers. Focus on creating immersive experiences that utilize the full screen, like Canabalt, for maximum user engagement.
I've created Appmator, a tool to help developers get their web apps into the Chrome Web Store quickly. Just enter your app's URL, and Appmator generates a zip file ready for upload. Appmator is available in the Chrome Web Store and is built using some cool technologies like webfonts, Modernizr, jszip, and more. Source code is available on GitHub.
