Indiscripts

Coordinate Spaces & Transformations is a free eBook covering all atomic subjects that a InDesign scripter or developer should grab before using transformation matrices and the related methods. The last update has minor corrections and notes…

In this episode, you will learn how to arrange your code so that it fits into IdExtenso's “modular space.” Modularity is a key term when it comes to maintaining a large-scale project. Even if our sample script is not in itself of pharaonic complexity, we will transform it, as an exercise, into a pure module…

So, you have the root idea and a basic code for your next InDesign script. All is fine. It works so well that you're now planning to release it, which opens additional questions: Will it work everywhere? How do I trace risky functions? What if I need to integrate new features later on? How do I deal with persistent user settings? How to add a basic interface? How will I localize the dialog in other languages? Can I make my script available in a dedicated menu? Will it work in a JSXBIN package as well? Can I obfuscate my code?…

InDesign's scripting infrastructure is based on DOM objects (Document, Story, Paragraph…) and any such object has an associated collection (Documents, Stories, Paragraphs…). Collections typically arise in complex specifiers like myDocument.stories.everyItem().words. They also provide two essential members, the length property and the count() method. How do they differ?

The Japanese scripter あるふぁ found a bug affecting any ExtendScript code based on ...==null. This is not a critical issue (because experienced developers never use such condition!) but the case provides the opportunity to summarize important rules regarding falsey values and the equality operator…

ScriptUI provides a set of usual mouse events (mouseover, mousedown, mouseup, click…) which are of primary interest in responsive user interfaces (UI). Developers can add event listeners to any UI component that needs to respond accordingly when the mouse enters the scene. But handling such events requires carefulness if your script has to support both CS and CC environments.

Chapter 4 of our “Spaces & Transform” eBook is probably both the trickiest and the most important. It tries to reveal the intricacies behind the Scripting DOM resolve() method, the unique tool for setting and processing InDesign locations with respect to the underlying coordinate systems. I spent months figuring out its obscure syntax and improving my knowledge on that particular topic. Understanding the location resolver is a crucial step for developing scripts that can deal in depth with geometry and transformations in InDesign.

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