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author | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
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committer | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
commit | 33058f2b292b3a581333bdfb21b8f671898c5060 (patch) | |
tree | 51c3e392513ec574331b2d3f85c394445ea803c6 /files/zh-cn/web/api/datatransferitem/index.html | |
parent | 8b66d724f7caf0157093fb09cfec8fbd0c6ad50a (diff) | |
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diff --git a/files/zh-cn/web/api/datatransferitem/index.html b/files/zh-cn/web/api/datatransferitem/index.html new file mode 100644 index 0000000000..1f05ea0fb9 --- /dev/null +++ b/files/zh-cn/web/api/datatransferitem/index.html @@ -0,0 +1,121 @@ +--- +title: DataTransferItem +slug: Web/API/DataTransferItem +translation_of: Web/API/DataTransferItem +--- +<div>{{APIRef("HTML Drag and Drop API")}}</div> + +<p><code><strong>DataTransferItem</strong></code> 描述了一个拖拽项。在一个拖拽操作<em>中,</em>每一个 {{domxref("DragEvent","drag event")}} 都有一个{{domxref("DragEvent.dataTransfer","dataTransfer")}} 属性,它包含一个存有拖拽数据的 {{domxref("DataTransferItemList","list")}} ,其中每一项都是一个 <code>DataTransferItem</code> 。</p> + +<p>这个接口没有构造函数。</p> + +<h2 id="属性">属性</h2> + +<dl> + <dt>{{domxref("DataTransferItem.kind")}} {{readonlyInline}}</dt> + <dd>拖拽项的种类,<code>string</code> 或是 <code>file。</code></dd> + <dt>{{domxref("DataTransferItem.type")}} {{readonlyInline}}</dt> + <dd>拖拽项的类型,一般是一个MIME 类型.</dd> +</dl> + +<h2 id="方法">方法</h2> + +<dl> + <dt>{{domxref("DataTransferItem.getAsFile()")}}</dt> + <dd>返回一个关联拖拽项的 {{domxref("File")}} 对象 (当拖拽项不是一个文件时返回 null)。</dd> + <dt>{{domxref("DataTransferItem.getAsString()")}}</dt> + <dd>使用拖拽项的字符串作为参数执行指定回调函数。</dd> + <dt>{{domxref("DataTransferItem.webkitGetAsEntry()")}} {{Non-standard_inline}}</dt> + <dd>返回一个基于 {{domxref("FileSystemEntry")}} 的对象来表示文件系统中选中的项目。通常是返回一个{{domxref("FileSystemFileEntry")}} 或是 {{domxref("FileSystemDirectoryEntry")}} 对象.</dd> +</dl> + +<h2 id="例子">例子</h2> + +<p>这个接口所有的属性和方法都有自己的介绍页,请到各自的介绍页中查看示例用法。</p> + +<h2 id="规范">规范</h2> + +<table class="standard-table"> + <tbody> + <tr> + <th scope="col">Specification</th> + <th scope="col">Status</th> + <th scope="col">Comment</th> + </tr> + <tr> + <td>{{SpecName('HTML WHATWG', 'interaction.html#datatransferitem','DataTransferItem')}}</td> + <td>{{Spec2('HTML WHATWG')}}</td> + <td>初始定义</td> + </tr> + <tr> + <td>{{SpecName('HTML5.1', 'editing.html#datatransferitem','DataTransferItem')}}</td> + <td>{{Spec2('HTML5.1')}}</td> + <td>W3C snapshot of WHATWG</td> + </tr> + <tr> + <td>{{SpecName('File System API', '#dom-datatransferitem-webkitgetasentry', 'DataTransferItem.webkitGetAsEntry()')}}</td> + <td>{{Spec2('File System API')}}</td> + <td><a href="/en-US/docs/Web/API/File_and_Directory_Entries_API">File and Directory Entries API</a> 中定义了<code>webkitGetAsEntry()</code></td> + </tr> + </tbody> +</table> + +<h2 id="浏览器兼容性">浏览器兼容性</h2> + +<p>{{CompatibilityTable}}</p> + +<div id="compat-desktop"> +<table class="compat-table"> + <tbody> + <tr> + <th>Feature</th> + <th>Chrome</th> + <th>Edge</th> + <th>Firefox (Gecko)</th> + <th>Internet Explorer</th> + <th>Opera</th> + <th>Safari (WebKit)</th> + </tr> + <tr> + <td>Basic support</td> + <td>4</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatGeckoDesktop(50)}}</td> + <td>{{CompatNo}}</td> + <td>12</td> + <td>{{CompatNo}}</td> + </tr> + </tbody> +</table> +</div> + +<div id="compat-mobile"> +<table class="compat-table"> + <tbody> + <tr> + <th>Feature</th> + <th>Android</th> + <th>Android Webview</th> + <th>Chrome for Android</th> + <th>Edge</th> + <th>Firefox Mobile (Gecko)</th> + <th>Firefox OS</th> + <th>IE Mobile</th> + <th>Opera Mobile</th> + <th>Safari Mobile</th> + </tr> + <tr> + <td>Basic support</td> + <td>{{CompatNo}}</td> + <td>{{CompatNo}}</td> + <td>{{CompatNo}}</td> + <td>{{CompatUnknown}}</td> + <td>{{CompatGeckoMobile(50)}}</td> + <td>{{CompatNo}}</td> + <td>{{CompatNo}}</td> + <td>{{CompatNo}}</td> + <td>{{CompatNo}}</td> + </tr> + </tbody> +</table> +</div> |