javascript - Onblur, what is the next control which will gain focus? - Stack Overflow

admin管理员组

文章数量:1399269

I am firing some code onblur() of a textbox. But I want to do something different if the user clicked on the cancel button to cause that onblur(). Is there a way within the onblur() event handler function to know what the control is that is about to receive focus and react acordingly?

-Joseph

I am firing some code onblur() of a textbox. But I want to do something different if the user clicked on the cancel button to cause that onblur(). Is there a way within the onblur() event handler function to know what the control is that is about to receive focus and react acordingly?

-Joseph

• javascript
• jquery

Share Improve this question Follow edited Jan 30, 2010 at 1:26 Justin Johnson 31.3k77 gold badges6666 silver badges8989 bronze badges asked Jan 29, 2010 at 23:43 BrokeMyLegBikingBrokeMyLegBiking 5,9881515 gold badges5252 silver badges6666 bronze badges

Add a ment  | 

2 Answers 2

Sorted by: Reset to default 6

Yes, you can get the target like this:

var target = event.explicitOriginalTarget || document.activeElement;

(I think I found this on StackOverflow somewhere).

I don't think there is a built in way, but you can hack together something by attaching focus events to all the form elements and setting some globally accessible variable about who received focus.

Something like this (you may want to fine-tune the time values):

var focusedElem = null;
var focusedTime = 0;

$("input", "#myForm").focus(function() {
    focusedElem = this;
    focusedTime = new Date();
})
.blur(function() {
    setTimeout(function() { //set a small timeout to wait for the other control to receive focus and set itself as focusedElem
        if (focusedElem && (new Date() - focusedTime) < 15) {
            //do Something with focusedElem;
        }
    }, 10);
});

本文标签： javascriptOnblurwhat is the next control which will gain focusStack Overflow