使用jQuery拖放后如何获取坐标位置?

时间:2009-05-11 16:57:30

标签: jquery drag-and-drop save position

使用jQuery拖放后如何获取坐标位置?我想将坐标保存到数据库中,以便下次访问时,该项目将处于该位置。例如,x:520px,y:300px?

编辑:

我是PHP和mysql程序员:)

那里有没有教程?

9 个答案:

答案 0 :(得分:38)

我刚刚做了类似的事情(如果我理解正确的话)。

我在jQuery 1.3.2中使用了函数position()include。

只是做了一个复制粘贴和一个快速调整...但应该给你的想法。

// Make images draggable.
$(".item").draggable({

    // Find original position of dragged image.
    start: function(event, ui) {

        // Show start dragged position of image.
        var Startpos = $(this).position();
        $("div#start").text("START: \nLeft: "+ Startpos.left + "\nTop: " + Startpos.top);
    },

    // Find position where image is dropped.
    stop: function(event, ui) {

        // Show dropped position.
        var Stoppos = $(this).position();
        $("div#stop").text("STOP: \nLeft: "+ Stoppos.left + "\nTop: " + Stoppos.top);
    }
});

<div id="container">
    <img id="productid_1" src="images/pic1.jpg" class="item" alt="" title="" />
    <img id="productid_2" src="images/pic2.jpg" class="item" alt="" title="" />
    <img id="productid_3" src="images/pic3.jpg" class="item" alt="" title="" />
</div>

<div id="start">Waiting for dragging the image get started...</div>
<div id="stop">Waiting image getting dropped...</div>

答案 1 :(得分:15)

有同样的问题。我的解决方案是下一个:

$("#element").droppable({
    drop: function( event, ui ) {

        // position of the draggable minus position of the droppable
        // relative to the document
        var $newPosX = ui.offset.left - $(this).offset().left;
        var $newPosY = ui.offset.top - $(this).offset().top;

    }
});

答案 2 :(得分:8)

这对我有用:

$("#element1").droppable(
{
    drop: function(event, ui)
    {
        var currentPos = ui.helper.position();
            alert("left="+parseInt(currentPos.left)+" top="+parseInt(currentPos.top));
    }
});

答案 3 :(得分:8)

以上都不适合我。

这是我的解决方案 - 效果很好:

$dropTarget.droppable({
    drop: function( event, ui ) {

    // Get mouse position relative to drop target: 
    var dropPositionX = event.pageX - $(this).offset().left;
    var dropPositionY = event.pageY - $(this).offset().top;
    // Get mouse offset relative to dragged item:
    var dragItemOffsetX = event.offsetX;
    var dragItemOffsetY = event.offsetY;
    // Get position of dragged item relative to drop target:
    var dragItemPositionX = dropPositionX-dragItemOffsetX;
    var dragItemPositionY = dropPositionY-dragItemOffsetY;

    alert('DROPPED IT AT ' + dragItemPositionX + ', ' + dragItemPositionY);

(部分取决于此处给出的解决方案:https://stackoverflow.com/a/10429969/165673

答案 4 :(得分:2)

我会从this开始。 然后更新它以使用position plugin 那应该可以让你到达目的地。

答案 5 :(得分:2)

如果您正在收听拖尾或其他事件,原始位置应为ui参数:

dragstop: function(event, ui) {
    var originalPosition = ui.originalPosition;
}

否则,我认为获得它的唯一方法是:

draggable.data("draggable").originalPosition

可拖动的是您要拖动的对象。第二个版本不保证可以在将来的jQuery版本中使用。

答案 6 :(得分:2)

&#13;
&#13;
$(function() 
  {
    $( "#element" ).draggable({ snap: ".ui-widget-header",grid: [ 1, 1 ]});
  });
    $(document).ready(function() {
        $("#element").draggable({ 
                containment: '#snaptarget', 
                scroll: false
         }).mousemove(function(){
                var coord = $(this).position();
                var width = $(this).width();
               var height = $(this).height();
                $("p.position").text( "(" + coord.left + "," + coord.top + ")" );
                $("p.size").text( "(" + width + "," + height + ")" );
         }).mouseup(function(){
                var coord = $(this).position();
                var width = $(this).width();
                var height = $(this).height();
                $.post('/test/layout_view.php', {x: coord.left, y: coord.top, w: width, h: height});
               
                });
        });
&#13;
#element {background:#666;border:1px #000 solid;cursor:move;height:110px;width:110px;padding:10px 10px 10px 10px;}
#snaptarget { height:610px; width:1000px;}
.draggable { width: 90px; height: 80px; float: left; margin: 0 0 0 0; font-size: .9em; }
.wrapper
{ 
background-image:linear-gradient(0deg, transparent 24%, rgba(255, 255, 255, .05) 25%, rgba(255, 255, 255, .05) 26%, transparent 27%, transparent 74%, rgba(255, 255, 255, .05) 75%, rgba(255, 255, 255, .05) 76%, transparent 77%, transparent), linear-gradient(90deg, transparent 24%, rgba(255, 255, 255, .05) 25%, rgba(255, 255, 255, .05) 26%, transparent 27%, transparent 74%, rgba(255, 255, 255, .05) 75%, rgba(255, 255, 255, .05) 76%, transparent 77%, transparent);
height:100%;
background-size:45px 45px;
border: 1px solid black;
background-color: #434343;
margin: 20px 0px 0px 20px;
}
&#13;
<!doctype html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <title>Layout</title>
    <link rel="stylesheet" href="//code.jquery.com/ui/1.11.4/themes/smoothness/jquery-ui.css">
    <script src="//code.jquery.com/jquery-1.10.2.js"></script>
    <script src="//code.jquery.com/ui/1.11.4/jquery-ui.js"></script>
    <link rel="stylesheet" href="../themes/default/css/test4.css" type="text/css" charset="utf-8"/>
    <script src="../themes/default/js/layout.js"></script>
  </head>
<body>
    <div id="snaptarget" class="wrapper">
        <div id="element" class="draggable ui-widget-content">
          <p class="position"></p>
          <p class="size"></p>
        </div>
    </div> 
    <div></div>
</body>
</html>
&#13;
&#13;
&#13;

答案 7 :(得分:1)

Cudos接受的答案很棒。但是,Draggable模块还有一个“拖动”事件,可以在拖动时告诉您位置。因此,除了'start'和'stop'之外,您还可以在Draggable对象中添加以下事件:

    // Drag current position of dragged image.
    drag: function(event, ui) {

        // Show the current dragged position of image
        var currentPos = $(this).position();
        $("div#xpos").text("CURRENT: \nLeft: " + currentPos.left + "\nTop: " + currentPos.top);

    }

答案 8 :(得分:1)

我需要保存开始位置和结束位置。 这项工作对我来说:

    $('.object').draggable({
        stop: function(ev, ui){
            var position = ui.position;
            var originalPosition = ui.originalPosition;
        }
    });