CODEWITHSUNDEEP
javascripthtmlonmouseover
frank billy
frank billy

Reputation: 365

Get Element Mouse is over JavaScript

I am trying to get the element that the mouse is currently over and return it. From what I've gathered thus far from research, this is the code to do it:

    document.getElementById('theTable').onmouseover = function () {

    var x = event.ClientX, y = event.ClientY,
        elementMouseIsOver = document.elementFromPoint(x, y);

    alert(elementMouseIsOver);
}

However, all the elements I created have ID's but I always get a constant return of "[object HTMLDivElement]" I'm expecting it to tell me what the ID of that element is...am I misusing the code? This will become a navigation bar on a web part within SharePoint.

Thanks in advance for any helpful input.

All Code:

var siteUrl = '/sites/dev/';
var theCounter = 0;
ExecuteOrDelayUntilScriptLoaded(retrieveListItems, "sp.js");

function retrieveListItems() {
var clientContext = new SP.ClientContext(siteUrl);
var oList = clientContext.get_web().get_lists().getByTitle('myList');
var camlQuery = new SP.CamlQuery();
camlQuery.set_viewXml("<Where><And><IsNotNull><FieldRef Name='Title' /></IsNotNull> <IsNotNull><FieldRef Name='TitleLink' /></IsNotNull></And></Where>");
this.collListItem = oList.getItems(camlQuery);
clientContext.load(collListItem);
clientContext.executeQueryAsync(Function.createDelegate(this, this.onQuerySucceeded),  Function.createDelegate(this, this.onQueryFailed));
}

function onQuerySucceeded(sender, args) 
{
var listItemEnumerator = collListItem.getEnumerator();
    while (listItemEnumerator.moveNext()) 
    {
    var oListItem = listItemEnumerator.get_current();

    //Each column in in the SharePoint List will essentially become an array.
    //So make an array for each column that will be returned!

    var theHeaders = new Array();
    var HeaderLinks = new Array();
    theCounter += 1;
    theHeaders[theCounter - 1] = oListItem.get_item('Title');
    HeaderLinks[theCounter - 1] = oListItem.get_item('TitleLink');

    //Get the Table Element created in HTML
    var getTheTableTag = document.getElementById('theTable');

    //Create the headers (top level links)
    var createTheHeaderElements = document.createElement('td');
    createTheHeaderElements.id = 'headerTag';

    var link = document.createElement('a');
    link.id = 'headerLinksTag';

    var theHeaderText = document.createTextNode(theHeaders[theCounter - 1]);
    link.setAttribute("href", HeaderLinks[theCounter - 1]);


    link.appendChild(theHeaderText);
    createTheHeaderElements.appendChild(link);
    getTheTableTag.appendChild(createTheHeaderElements);


//        var createA = document.createElement('a');
//        var createAText = document.createTextNode(theCounter);
//        createA.setAttribute('href', "http://google.com");
//        createA.appendChild(createAText);
//        getTheTableTag.appendChild(createA);


};

////////////////////////////HERE IS THE PROBLEM CHILD//////////////////////


document.getElementById('theTable').onmouseover = function () {

    var x = event.ClientX, y = event.ClientY,
        elementMouseIsOver = document.elementFromPoint(x, y);

    alert(elementMouseIsOver);
}

///////////////////////////////////////////////////////////////////////////
}
function onQueryFailed(sender, args) {
alert('Request failed. ' + args.get_message() + '\n' + args.get_stackTrace());
}

Upvotes: 1

Views: 3960

Answers (2)

user2676843
user2676843

Reputation: 59

document.getElementById('theTable').onmouseover = function (e) {
    console.log(e.target)
    alert("mouse is over " + e.target.id);
}

Upvotes: 1

Sudipta Chatterjee
Sudipta Chatterjee

Reputation: 4670

Two things come to mind.

  1. Try passing function(event) instead of simply function() for the onmouseover function.

  2. event.target.id usually gets the id - try that.

Upvotes: 3

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