Question

我有一个 jquery 函数，它允许元素可拖动和调整大小，并且工作正常。我想添加的是设置一个位置，在该位置元素可以拖动和调整大小。更具体地说，我想让我的元素在我的代码中的 2 行（v1 和 vh）的空间之间拖动。有没有办法实现这一目标？任何帮助表示赞赏。提前致谢。

    $(".box").mouseup(function () {
        $(this).find('iframe').fadeIn('slow');
    }).mousedown(function () {
        $(this).find('iframe').hide();
    });

    $(function () {
        $(".box")
            .resizable()
            .draggable();
    });

.box {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 32%;
    height: 30%;
    background-color: #2b2d2f;
    color: black;
    position: absolute;
    top: 1%;    
}

.box h4{
    color: white;
    font-size: 20px;
    text-align:center;   
}

.vl {
    height: 100%;
    position: absolute;
    right: 5%;
    top: 0;
    background-color: red;
    width: 2.5px;
    height: 100%;
    overflow: hidden;
}

.vh {
    width: 100%;
    position: absolute;
    top: 75%;
    background-color: red;
    height: 2.5px;
    width: 100%;
    overflow: hidden;
}

<html>
<head>
<script src="https://code.jquery.com/jquery-3.6.0.min.js"
        integrity="sha256-/xUj+3OJU5yExlq6GSYGSHk7tPXikynS7ogEvDej/m4=" crossorigin="anonymous"></script>
    <script src="https://code.jquery.com/ui/1.12.1/jquery-ui.min.js"
        integrity="sha256-VazP97ZCwtekAsvgPBSUwPFKdrwD3unUfSGVYrahUqU=" crossorigin="anonymous"></script>
    <link rel="stylesheet" type="text/css" href="http://code.jquery.com/ui/1.9.2/themes/base/jquery-ui.css" />
 
</head>
<body>

<div class="box">
<h4>box</h4>
</div>

    <div class="vl">
    </div>
    <div class="vh">
    </div>

</body>
</html>

Answer 1

draggable() jQueryUI 组件有一个 containment 参数。它的一个签名允许您提供 4 个坐标，这些坐标等于可拖动元素应限制到的边界框。

要计算此值，您可以分别检索垂直线和水平线的 left 和 top，减去 .box 的宽度/高度。试试这个：

jQuery($ => {
  let $box = $('.box');
  let $vl = $('.vl');
  let $vh = $('.vh');

  $box
    .resizable()
    .draggable({
      containment: [
        8, // default body padding, amend as necessary
        8, // default body padding, amend as necessary
        Math.ceil(parseFloat($vl.css('left'))) - Math.floor(parseFloat($box.width())),
        Math.ceil(parseFloat($vh.css('top'))) - Math.floor(parseFloat($box.height()))
      ]
    });
});

.box {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 32%;
  height: 30%;
  background-color: #2b2d2f;
  color: black;
  position: absolute;
  top: 1%;
}

.box h4 {
  color: white;
  font-size: 20px;
  text-align: center;
}

.vl {
  height: 100%;
  position: absolute;
  right: 5%;
  top: 0;
  background-color: red;
  width: 2.5px;
  height: 90%;
  overflow: hidden;
}

.vh {
  position: absolute;
  top: 75%;
  background-color: red;
  height: 2.5px;
  width: 95%;
  overflow: hidden;
}

<script src="https://code.jquery.com/jquery-3.6.0.min.js" integrity="sha256-/xUj+3OJU5yExlq6GSYGSHk7tPXikynS7ogEvDej/m4=" crossorigin="anonymous"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.min.js" integrity="sha256-VazP97ZCwtekAsvgPBSUwPFKdrwD3unUfSGVYrahUqU=" crossorigin="anonymous"></script>
<link rel="stylesheet" type="text/css" href="http://code.jquery.com/ui/1.9.2/themes/base/jquery-ui.css" />
<div class="box">
  <h4>box</h4>
</div>
<div class="vl"></div>
<div class="vh"></div>

Answer 2

一种方法是将盒子包裹在适合您所需区域的容器中并使用 <?php namespace App\Http\Controllers; use Illuminate\Http\Request; use Illuminate\Support\Facades\Http; use \GuzzleHttp\Client; use Illuminate\Http\Client\Response; use ArrayAccess; class ApiController extends Controller { function api() { $barcode = 8710496976575; $response = Http::get('https://api.barcodespider.com/v1/lookup?token=YOUT_TOKEN&upc=' . $barcode;); dd($response->json()); }}

array:3 [▼
  "item_response" => array:3 [▼
    "code" => 200
    "status" => "OK"
    "message" => "Data returned"
  ]
  "item_attributes" => array:16 [▼
    "title" => "De Ruijter Fruit Sprinkles (Vruchten Hagel), 400 Gr (14.1 Oz), 1 Box"
    "upc" => "8710496976575"
    "ean" => "08710496976575"
    "parent_category" => "Grocery"
    "category" => "Grocery"
    "brand" => "De Ruijter"
    "model" => ""
    "mpn" => "RUI_HAGEL_FRUIT_400"
    "manufacturer" => "De Ruijter"
    "publisher" => "De Ruijter"
    "asin" => "B0044KJN1O"
    "color" => ""
    "size" => "12.8 Ounce"
    "weight" => "1 Pounds"
    "image" => "https://images.barcodespider.com/upcimage/8710496976575.jpg"
    "description" => ""
  ]
  "Stores" => array:1 [▼
    0 => array:7 [▶]
  ]
]

dd($response->json("item_attributes[0]"));

containment: "parent"

设置元素可以拖动的位置

2 个答案: