Deleting Unused Swatches

Now logged as a bug report here at UserVoice

Larry had it correct in saying actions are the key.

We don't care that people can add, modify and remove actions.

we just need to make sure we create the action we want, run it, then remove it.

Here is a working script that will create an action to selectAllUnused Swatches, and Delete that selection.

it will run the action after creating it, and then it removes the action keeping the users action panel as clean as when we started.

Let me know if you have any trouble with it...

 // 
 //    SCRIPTED ACTIONS
 //    creates an action, runs it, then removes it.
 //
 //    Author: Qwertyfly
 //    Contact: tristan@qwertyfly.com
 //
 //    Version 1.001 - 27/3/17
 //
 //     Change Log:
 //     V1.001 - setup for Delete Unused Swatches
 //     
 //
 // All code within this script is the property of Tristan O'Brien.
 // This script is free for personal use
 // Permission is required prior to any commercial application.
 //
 //  any suggestions? drop me a line...
 //
function QwertyflyScriptedActions_DeleteUnusedSwatches(){  
    if(app.documents.length = 0){return;}
    var ActionSet = "QwertyflyScriptedActions"
    var Action1Name = "KillSwatches"
    var ActionString = '/version 3\n/name [ 24\n'+ Hexit(ActionSet) +'\n]\n/isOpen 0\n/actionCount 1\n/action-1 {\n/name [ 12\n'+ Hexit(Action1Name) +'\n]\n/keyIndex 0\n/colorIndex 0\n/isOpen 0\n/eventCount 2\n/event-1 {\n/useRulersIn1stQuadrant 1\n/internalName (ai_plugin_swatches)\n/localizedName [ 8\n5377617463686573\n]\n/isOpen 0\n/isOn 1\n/hasDialog 0\n/parameterCount 1\n/parameter-1 {\n/key 1835363957\n/showInPalette 1\n/type (enumerated)\n/name [ 17\n53656c65637420416c6c20556e75736564\n]\n/value 11\n}\n}\n/event-2 {\n/useRulersIn1stQuadrant 1\n/internalName (ai_plugin_swatches)\n/localizedName [ 8\n5377617463686573\n]\n/isOpen 0\n/isOn 1\n/hasDialog 1\n/showDialog 0\n/parameterCount 1\n/parameter-1 {\n/key 1835363957\n/showInPalette 1\n/type (enumerated)\n/name [ 13\n44656c65746520537761746368\n]\n/value 3\n}\n}\n}';
    createAction(ActionString,ActionSet);   
    ActionString = null;  
    app.doScript(Action1Name, ActionSet, false);  
    app.unloadAction(ActionSet,"");  
    function createAction (str,act) {   
        var f = new File('~/' + act+ '.aia');   
        f.open('w');   
        f.write(str);   
        f.close();   
        app.loadAction(f);   
        f.remove();   
    }
    function Hexit(str) {
        var hex = '';
        for(var i=0;i<str.length;i++) {
            hex += ''+str.charCodeAt(i).toString(16);
        }
        return hex;
    }
}  
QwertyflyScriptedActions_DeleteUnusedSwatches(); 

Have you tried the Delete Unused Panel Items from the default Actions set? If you are using AS, you can use the do script construct to run the action.