A while back I blogged about SubModal, a little tool for creating nice modal dialogs on websites.
One of the things I wanted to do was have the modal dialog return a value, like the showModalDialog does in IE.
To achieve this, follow these instructions.
In your “main” html page, declare a callback function and a button that will launch the modal dialog:
function myFunction(val){
alert("Return value is...");
alert(val);
}
Then create an input button to launch the modal dialog.
<input type="button" onclick="showPopWin('modalcontent.html', 400, 200, myFunction);" />
Then, in the submodalsource file, or where ever you have your JS stored, change this function to include a return value, and have it use it.
/**
* @argument callReturnFunc - bool - determines if we call the return function specified
* @argument returnVal - anything - return value
*/
function hidePopWin(callReturnFunc, returnVal) {
//alert(callReturnFunc);
gPopupIsShown = false;
restoreTabIndexes();
if (gPopupMask == null) {
return;
}
gPopupMask.style.display = "none";
gPopupContainer.style.display = "none";
if (callReturnFunc == true && gReturnFunc != null) {
// edited by CDM -- gReturnFunc(window.frames["popupFrame"].returnVal);
gReturnFunc( returnVal );
}
gPopFrame.src = gLoading;
// display all select boxes
if (gHideSelects == true) {
displaySelectBoxes();
}
}
Then finally on your modal page, just some code to close the window, and pass back the return value.
<button onclick="window.parent.hidePopWin(true, 'I am the return value')">close</button>
Chris May 