open-close-masks.jsx

// {
// basic panel


run_script(this);

 function run_script(thisObj){

// this is global
  var ocdata = {
        'closed':false,
        'ui_strings':['Open Mask!','Close Mask!'],
        'oposite_mode':true
      };

///   THIS WILL CHECK IF PANEL IS DOCKABLE OR FLAOTING WINDOW  
var win   = buildUI(thisObj );
if ((win !== null) && (win instanceof Window)) {
    win.center();
    win.show();
} // end if win  null and not a instance of window 

 function buildUI (thisObj  ) {
        var H = 25; // the height
        var W = 30; // the width
        var G = 5; // the gutter
        var x = G;
        var y = G;
    var win = (thisObj instanceof Panel) ? thisObj :  new Window('palette', 'example',[0,0,W*5+G*3,H+2*G],{resizeable: true});

    if (win !== null) {
        win.check_box_closed = win.add('checkbox',[x,y,x+W*2,y + H],'closed?');
        x+=W*2+G;
        win.check_box_opposite = win.add('checkbox',[x,y,x+W*3,y + H],'opposite?');
        x= G;
        y+=H+G;
        var ui_str = ocdata.closed === true ? ocdata.ui_strings[0] : ocdata.ui_strings[1];
        win.button = win.add('button', [x,y,x+W*3,y + H],'do it!');

        win.check_box_opposite.onClick = function  () {
          ocdata.oposite_mode = this.value;
          if(this.value === true){
            win.check_box_closed.enabled = false;
          }else{
            win.check_box_closed.enabled = true;
          }
        };
        win.check_box_closed.onClick = function (){
            ocdata.closed = this.value;
        };
        // win.button.onClick = function () {
        // main_script(ocdata.closed);
        // };
    win.button.addEventListener ("click", function (k) {
      if (k.altKey) {
       // this.text = ocdata.ui_strings[1];
       // ocdata.closed = true;
       main_script(true);
      }else{
        // this.text = ocdata.ui_strings[0];
       // ocdata.closed = false;
       main_script(ocdata.closed);
      }
    });

    }
    return win;
}


 function main_script(closeit){

            var curComp = app.project.activeItem;
   if (!curComp || !(curComp instanceof CompItem)){
        alert('please select a comp');
        return;
    }

    if(curComp.selectedLayers.length < 1){
        alert('Please select at least one layer');
    return;
        }
    app.beginUndoGroup('open-close-mask');

    for(var i = 0; i < curComp.selectedLayers.length;i++){
        var layer = curComp.selectedLayers[i];
        var masks = get_selected_masks (layer);
        for(var j=0;j < masks.length;j++){
            var prop = masks[j].maskPath;
            shape = prop.value;
            var olshapeval = shape.closed;
            if(ocdata.oposite_mode === true){
              if(olshapeval=== true){

              shape.closed = false;
              }else{
              shape.closed = true;
              }
              }else{
            shape.closed = closeit;
              }
            prop.setValue(shape);
            }
        }
         app.endUndoGroup();
     }

 function get_selected_masks(layer){
 // this is taken again from redefinerys fundamentals
// http://www.redefinery.com/ae/fundamentals/masks/#masks_getselected
// given:
// layer = Layer object, and the layer can have masks applied
//
var masksGroup = layer("Masks");
var selectedMasks = [];                 // Store masks in an array; starts as empty
if (masksGroup !== null){
                                                 // Iterate through properties of masksGroup
                                                 // Append selected mask to the array

    for (var i = 1; i <= masksGroup.numProperties; i++){
       if (masksGroup.property(i).selected)
            selectedMasks[selectedMasks.length] = masksGroup.property(i);
            }
        }
// The selectedMasks array now contains the list of selected masks 
// in top-to-bottom order   
    return selectedMasks;
}
 } // close run_script

// }