Flex RichTextEditor - Discard Ctrl+Y

Question

I'm using RichTextEditor in my AIR desktop application, built with flex 3.6.

Since there's no undo/redo management, I'm trying to extend the component functionality.

I got a function I got a problem everytime CTRL+Y are pressed.

This what I actually do when a key is pressed.

<mx:RichTextEditor 
    id="myRTE"
    keyDown="onKeyDown(event);"
/>

....

public function onKeyDown(event:KeyboardEvent):void
{
    if (event.ctrlKey && event.charCode == 122)
    {
        // ctrl + z pressed!
        undo();
    }

    if (event.ctrlKey && event.charCode == 121)
    {
        // ctrl + y pressed!
        redo();
    }
}

My problem is that CTRL + Y output also a weird char in my RichTextEditor but i would like to discard it.

I tried to put a event.stopImmediatePropagation(); just after the redo(); but the weird char is appended to my RichTextEditor anyway.

I really don't know how get rid of that.

Any idea?

Answer 1

You can use this code:

protected function application1_creationCompleteHandler(event:FlexEvent):void {
    myRTE.textArea.addEventListener(TextEvent.TEXT_INPUT, textInput);
}

private function textInput(event:TextEvent):void {
    // <CTRL+V pressed
    if (event.text.length > 1)
        event.preventDefault();
}

RichTextEditor encapsulate and using TextArea. You can add event for TextEvent.TEXT_INPUT to prevent CTRL+V event.