Mobile Safari: Disable scrolling pages “out of screen”

Question

I want to block scrolling page \"out of the iPhone screen\" (when gray Safari\'s background behind the page border is visible). To do this, I\'m cancelling touchmove event:

Answer 1

From what I understand of your question, you've attempted to combine the code you've presented above with the code snippet provided by Ross Boucher on Posterous. Attempting to combine these two snippets back-to-back won't work, because in disabling touchmove, you've also disabled the shim that allows mousemove to work via his sample.

This question and its answers sketch out a workable solution to your problem. You should try these two snippets to see if they resolve your issue:

This snippet, which disables the old scrolling behavior:

elementYouWantToScroll.ontouchmove = function(e) {
    e.stopPropagation();
}; 

Or this one, from the same:

document.ontouchmove = function(e) {
    var target = e.currentTarget;
    while(target) {
        if(checkIfElementShouldScroll(target))
            return;
        target = target.parentNode;
    }

    e.preventDefault();
};

Then, drop in the code on Posterous:

function touchHandler(event)
{
    var touches = event.changedTouches,
        first = touches[0],
        type = "";
         switch(event.type)
    {
        case "touchstart": type = "mousedown"; break;
        case "touchmove":  type="mousemove"; break;        
        case "touchend":   type="mouseup"; break;
        default: return;
    }

             //initMouseEvent(type, canBubble, cancelable, view, clickCount, 
    //           screenX, screenY, clientX, clientY, ctrlKey, 
    //           altKey, shiftKey, metaKey, button, relatedTarget);

    var simulatedEvent = document.createEvent("MouseEvent");
    simulatedEvent.initMouseEvent(type, true, true, window, 1, 
                              first.screenX, first.screenY, 
                              first.clientX, first.clientY, false, 
                              false, false, false, 0/*left*/, null);

                                                                                 first.target.dispatchEvent(simulatedEvent);
    event.preventDefault();
}

And that should do it for you. If it doesn't, something else isn't working with Mobile Safari.