Adobe Illustrator Script for exporting artboards to a selective density assets.

ai-export-artboard-assets.jsx

/**
* Remix by: @gabovanlugo (http://gabolugo.com)
* Thanks to: @herkulano, Niels Bosma & Hiroyuki Sato
*/


main();

var folder;


function main() {
  /*
  * UI Definition
  */

  // Window
  var win = new Window('dialog', 'Export Artboards Assets');
  win.alignChildren = 'fill';

  // Panel for Checkboxes
  win.scalePanel = win.add('panel', undefined, 'Scale');
  win.scalePanel.orientation = 'row';


  // Checkboxes Definition
  win.scalePanel.s1 = win.scalePanel.add('checkbox', undefined, '@x');
  win.scalePanel.s2 = win.scalePanel.add('checkbox', undefined, '@2x');
  win.scalePanel.s3 = win.scalePanel.add('checkbox', undefined, '@3x');
  
  // Checkboxes Default Values
  win.scalePanel.s1.value = true
  win.scalePanel.s2.value = true
  win.scalePanel.s3.value = false


  // Action Buttons
  win.btnGroup = win.add('group', undefined);
  win.btnGroup.alignment = 'center';

  win.btnGroup.cancelBtn = win.btnGroup.add('button', undefined, 'Cancel');
  win.btnGroup.okBtn = win.btnGroup.add('button', undefined, 'OK');


  // UI Functions

  win.btnGroup.okBtn.onClick = function () {
    
    saveAllAssets(
      win.scalePanel.s1.value,
      win.scalePanel.s2.value,
      win.scalePanel.s3.value
    );

    win.close();
  }

  win.btnGroup.cancelBtn.onClick = function () {
    win.close();
  }

  win.show();

}


function saveAllAssets(s1, s2, s3) {

  folder = Folder.selectDialog();

  var document = app.activeDocument;

  if (document && folder) {
    if (s1) {
      saveAssets(100, '', document);
    }

    if (s2) {
      saveAssets(200, '@2x', document);
    }

    if (s3) {
      saveAssets(300, '@3x', document);
    }

  }

  alert('Done! Assets saved in: \n' + folder.fsName);

}


function saveAssets(scaleTo, densitySuffix, document) {

  var i, ab, file, options;

  for (i = document.artboards.length - 1 ; i >= 0 ; i--) {

    document.artboards.setActiveArtboardIndex(i);
    ab = document.artboards[i];

    file = new File(folder.fsName + '/' + ab.name + densitySuffix + '.png');

    options = new ExportOptionsPNG24();
    options.antiAliasing = true;
    options.transparency = true;
    options.artBoardClipping = true;
    options.verticalScale = scaleTo;
    options.horizontalScale = scaleTo;

    document.exportFile(file, ExportType.PNG24, options);

  }

}