Adobe LiveCycle JavaScript if-else函数？

Question

I am attempting to do VERY simple code to have a text field have default hints that when moused over, they disappear, and when the mouse leaves, they reeappear. I know I can accomplish this with

this.rawValue = "  "
this.rawValue = "Address"

with the "Value" section set at default "Address". MY PROBLEM, is that when I type something, if I accidently mouse over the section again, it reverts back to the default value.

What am I missing? I need it to only return to the default value if new text isn't entered.

Answer 1

Just change it so it does not edit the text if the user has entered anything.

in mouseover event:

//if the text is the default text, hide it on mouseover.
if (this.rawValue == "Address") this.rawValue = "";

in mouseExit event:

//if the text is empty, replace it with the default when the user exits the field.
if (this.rawValue == "" || this.rawValue == null) this.rawValue = "Address";

I'd consider putting this in normal enter/exit events instead of the mouse-specific ones, because some users may use the tab key to navigate the form.

Also, don't use spaces to signify empty, just use "".