Tip of the Iceberg

Category show-n-tell thursday
If you've listened to the latest episode of Yellowcast, you already know that I occasionally tinker with the (admittedly weak) JavaScript support in the Notes client, and today's SnTT showcases a few fun things it allows us to do at run-time during a button click, field event (i.e. onBlur), and various other events:

• document.bgColor is read-write, allowing us to change the background of a page/form.
• Button.value is read-write, allowing us to actually change the label of a button.
• As mentioned on the podcast, we can call LotusScript and Formula from within JavaScript by simulating a click event on a hidden button containing that code.

Many of you are likely familiar with the Lightbox approach to displaying images and image galleries on a web page. For the first time, I was actually going to show and tell, using the video below to demonstrate how the aforementioned techniques can be used - in combination with layers and embedded editors - to create similar image galleries from within the Notes client. Sadly, I'm a CamStudio noob, and while the video recorded fine, the audio recorded at 4x speed, so hopefully the connection between the code and the resulting behavior is still obvious despite the silence. NOTE: since the video includes a code walkthrough (visually, anyway), you'll probably want to watch it in fullscreen mode... popcorn optional.



The example database shown in the tutorial is available for download... it's 11 MB, so it'll take slightly longer than most of my downloads, but the original version contained 36 wallpapers, which made the database 44 MB, so I figured 9 was enough to illustrate the point.