Can a script detect when Edit Fade is (not) available?

Question

Let's say I would like a script to open the Fade dialog. (1) To prevent a potential error, I would like to check if Fade is available or not.Is this possible in a script? (2) [SOLVED] When the Fade dialog opens, am I still in my script?If so, can I catch when the user simply cancels the dialog, and can I then let the script do something (else)?(This seems related but in case you create your own dialogs...how-do-i-stop-running-a-script-when-i-hit-cancel-on-dialog-box  )    if (Edit>Fade is available) {
  var idFade = charIDToTypeID( "Fade" );
  executeAction( idFade, undefined, DialogModes.ALL );
}   Thank You for any pointers &#128578;

Jef Bracke · Answer

You can check if fade is available by adding some error handling and wrapping it in a function:

Caveat: only works for 1 fade.

fadeIsAvailable = function() {
    var ret = false;
    // Checks the history state to see if a step was added after fading.
    // If nothing was added after fading, fade wasn't available and therefore won't have been added to the history.
    
    var as = app.activeDocument.activeHistoryState;
    try{
        executeAction( charIDToTypeID( "Fade" ), undefined, DialogModes.NO );}
    catch(e){
        ret = false;
    }
    if (as != app.activeDocument.activeHistoryState) {
        ret = true;
        app.activeDocument.activeHistoryState = as;
    }
    return ret;
}


if(fadeIsAvailable()){
    alert("fade available");
} else {
    alert("fade not available");
}

Can a script detect when Edit > Fade is (not) available?

1 reply

Sign up

To post, reply, or follow discussions, please sign in with your Adobe ID.

Sign in to Adobe Community

To post, reply, or follow discussions, please sign in with your Adobe ID.

Scanning file for viruses.

This file cannot be downloaded