Making ScriptUI Buttons Do Something

In the previous case, I already knew how to test the radio button (or checkbox) state in order to call a function to "do something".

The next area where I am working things out blindly is testing for a dropdown array... I settled on comparing that the content of the dropdown was equal to itself. The following code seems to work as expected:

// DIALOG
var dialog = new Window("dialog");
dialog.text = "Dialog";
dialog.orientation = "row";
dialog.alignChildren = ["center", "top"];
dialog.spacing = 10;
dialog.margins = 16;

// DROPDOWNPANEL
var dropdownPanel = dialog.add("panel", undefined, undefined, {
    name: "dropdownPanel"
});
dropdownPanel.text = "Dropdown Label";
dropdownPanel.orientation = "column";
dropdownPanel.alignChildren = ["left", "top"];
dropdownPanel.spacing = 10;
dropdownPanel.margins = 10;

var dropdownMenu_array = ["Item 1", "Item 2"];
var dropdownMenu = dropdownPanel.add("dropdownlist", undefined, undefined, {
    name: "dropdownMenu",
    items: dropdownMenu_array
});
dropdownMenu.selection = 0;

// OK & CANCEL BUTTONS
var okButton = dialog.add("button", undefined, undefined, {
    name: "okButton"
});
okButton.text = "OK";
okButton.alignment = ["center", "center"];

var cancelButton = dialog.add("button", undefined, undefined, {
    name: "cancelButton"
});
cancelButton.text = "Cancel";
cancelButton.alignment = ["center", "center"];

// WRAP THE UI ELEMENTS INTO A FUNCTION
function buttonActions() {

    // DROPDOWN SELECTION TESTS
    if (dropdownMenu.selection.text === "Item 1") {
        // CALL THE FUNCTION
        dropdownItem1result();
    }

    if (dropdownMenu.selection.text === "Item 2") {
        // CALL THE FUNCTION
        dropdownItem2result();
    }

    // DROPDOWN FUNCTIONS

    function dropdownItem1result() {
        alert("You selected Item 1");
    }

    function dropdownItem2result() {
        alert("You selected Item 2");
    }

}

// SHOW THE WINDOW & CALL THE DROPDOWN FUNCTION ON OK, OR CANCEL THE SCRIPT
// dialog.show() - 2 ? buttonActions() : alert("Script cancelled!");
dialog.show() - 2 ? buttonActions() : undefined;

I presume that an alternative method to determine which dropdown menu item was selected would be to use a test for the array item index number? If so, I can't figure that alternative method out though.

And I'm guessing that testing other GUI elements will present their own challenges. What does editText use? What about sliders? This is why I'm struggling to find documentation and easy to understand samples. Building the scriptUI is simple as the tool from Joonas does all the hard work, but getting the interface elements to "do something" is now my challenge.

win = new Window('dialog')
win.add('button', undefined, 'OK')
win.add('button', undefined, 'Cancel')
alert(win.show() - 2 ? 'Start' : 'Leave')

Here is the code:

#target photoshop

// GUI - START

// MYDIALOGWINDOW
var myDialogWindow = new Window("dialog"); 
    myDialogWindow.text = "myWindow"; 
    myDialogWindow.orientation = "column"; 
    myDialogWindow.alignChildren = ["center","top"]; 
    myDialogWindow.spacing = 10; 
    myDialogWindow.margins = 10; 

// BUTTONGROUP
var buttonGroup = myDialogWindow.add("panel", undefined, undefined, {name: "buttonGroup"}); 
    buttonGroup.text = "Button Group"; 
    buttonGroup.orientation = "column"; 
    buttonGroup.alignChildren = ["left","top"]; 
    buttonGroup.spacing = 10; 
    buttonGroup.margins = 10; 

var radioButton1 = buttonGroup.add("radiobutton", undefined, undefined, {name: "radioButton1"}); 
    radioButton1.text = "Button 1"; 

var radioButton2 = buttonGroup.add("radiobutton", undefined, undefined, {name: "radioButton2"}); 
    radioButton2.text = "Button 2"; 

// MYDIALOGWINDOW
var okButton = myDialogWindow.add("button", undefined, undefined, {name: "okButton"}); 
    okButton.text = "OK"; 

var cancelButton = myDialogWindow.add("button", undefined, undefined, {name: "cancelButton"}); 
    cancelButton.text = "Cancel"; 

// SHOW THE WINDOW
myDialogWindow.show();

// GUI - FINISH

// TEST BUTTON 1
if (radioButton1.value === true) {
    button1result();
}

// TEST BUTTON 2
if (radioButton2.value === true) {
    button2result();
}

// TEST OK BUTTON
// >> CODE HERE <<

// TEST CANCEL BUTTON
// >> CODE HERE <<


// BUTTON FUNCTIONS

function button1result() {
    alert("You selected Button 1");
}

function button2result() {
    alert("You selected Button 2");
}