[SOLVED] Adaptive resize action (script)

This should also work.

Though proper Scripting should probably also include a check for the correct proportions.

// 2011; use it at your own risk;
#target photoshop
if (app.documents.length > 0) {
var myDocument = app.activeDocument;
// set to pixels;
var originalRulerUnits = app.preferences.rulerUnits;
app.preferences.rulerUnits = Units.PIXELS;
// get dimensions;
var myHeight = myDocument.height;
var myWidth = myDocument.width;
// scale;
if (myHeight > myWidth) {
     var myScale = new UnitValue (10000 / myHeight, "%");
     myDocument.resizeImage(myScale, myScale, undefined, ResampleMethod.BICUBIC)
     }
else {
     var myScale =  new UnitValue (100000 / myWidth, "%");
     myDocument.resizeImage(myScale, myScale, undefined, ResampleMethod.BICUBIC)
     };
// reset;
app.preferences.rulerUnits = originalRulerUnits;
};