JavaScript: how can I make a tooltip by following the cursor * and * flip the collision?

Question

I am new to JavaScript, so I feel this is an easily resolved issue; bear with me please.

For my website, I have included a jQuery-based tooltip that follows the cursor. But since his tool, which I found on the Internet for starters, is having trouble finding and troubleshooting. I want the tooltip to follow the cursor until the tooltip collides with the edges of the page; when it collides, I would like it to do something like collision: "flip" . I pretty much understand why my attempts fail. I only know how to do this only with the cursor or use only .position () . I don’t understand how to include both in one script without messing up the rest.

Here's the script, as stated on the developer's site:

<script type="text/javascript">
$(document).ready(function() {
// Tooltip only Text
$('.masterTooltip').hover(function(){
    // Hover over code
    var title = $(this).attr('title');
    $(this).data('tipText', title).removeAttr('title');
    $('<p class="tooltip"></p>')
    .text(title)
    .appendTo('body')
    .fadeIn('slow');
}, function() {
    // Hover out code
    $(this).attr('title', $(this).data('tipText'));
    $('.tooltip').remove();
}).mousemove(function(e) {
    var mousex = e.pageX + 20; //Get X coordinates
    var mousey = e.pageY + 10; //Get Y coordinates
    $('.tooltip')
    .css({ top: mousey, left: mousex })
});
});
</script>

CSS. , , , , .

.tooltip {
display:none;
position:absolute;
border:1px solid #333;
background-color:#161616;
border-radius:5px;
padding:10px;
color: #fff;
font-size:12px;
width: 200px;
}

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Answer 1

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$(document).ready(function() {
    // Tooltip only Text
    $('.masterTooltip').hover(function() {
        // Hover over code
        var title = $(this).attr('title');
        $(this).data('tipText', title).removeAttr('title');
        $('<p class="tooltip"></p>')
            .text(title)
            .appendTo('body')
            .fadeIn('slow');
    }, function() {
        // Hover out code
        $(this).attr('title', $(this).data('tipText'));
        $('.tooltip').remove();
    }).mousemove(function(e) {
        var mouseXPadding = 20,
            mouseYPadding = 10;
            $('.tooltip').position({
                my: "left+" + mouseXPadding + " top+" + mouseYPadding,
                of: e,
                // within: $('.masterTooltip') // optional to contain tooltip
            });
    });
});

, , , (, ):

$(document).ready(function() {
    var padding = {
            x = 20,
            y = 10
        },
        $tip = $('<p class="tooltip"></p>');

    // Our helper function that moves tip to the mouse
    function moveTipToMouse(event) {
        $tip.position({
            my: "left+" + padding.x+ " top+" + padding.y,
            of: event,
        });
    }

    // Moves tooltip out of the way if the mouse accidentally goes over it
    $tip.mousemove(moveTipToMouse);

    // Tooltip only Text
    $('.masterTooltip').hover(function() {
        // Hover over code
        var title = $(this).attr('title');
        $(this).data('tipText', title).removeAttr('title');
        $tip.text(title);
        if (!$.contains(document, $tip[0])) {
            $tip.appendTo('body').fadeIn("slow");
        }
    }, function(event) {
        // Hover out code
        // if the mouse exists to the tooltip, no need to hide it
        if ($tip.is(':hover')) {
            return;
        }
        $('.tooltip').remove();
    }).mousemove(moveTipToMouse);
});

: https://jsfiddle.net/g6wmkzr2/