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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/event/composed | |
parent | 8b66d724f7caf0157093fb09cfec8fbd0c6ad50a (diff) | |
download | translated-content-33058f2b292b3a581333bdfb21b8f671898c5060.tar.gz translated-content-33058f2b292b3a581333bdfb21b8f671898c5060.tar.bz2 translated-content-33058f2b292b3a581333bdfb21b8f671898c5060.zip |
initial commit
Diffstat (limited to 'files/zh-cn/web/api/event/composed')
-rw-r--r-- | files/zh-cn/web/api/event/composed/index.html | 97 |
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diff --git a/files/zh-cn/web/api/event/composed/index.html b/files/zh-cn/web/api/event/composed/index.html new file mode 100644 index 0000000000..afc72ea0be --- /dev/null +++ b/files/zh-cn/web/api/event/composed/index.html @@ -0,0 +1,97 @@ +--- +title: Event.composed +slug: Web/API/Event/composed +translation_of: Web/API/Event/composed +--- +<p>{{SeeCompatTable}}{{APIRef("Shadow DOM")}}</p> + +<p>{{domxref("Event")}} 接口的只读属性 <strong><code>composed</code></strong> 返回一个 {{jsxref("Boolean")}} 值,用来指示该事件是否可以从 Shadow DOM 传递到一般的 DOM。</p> + +<div class="note"> +<p>注意:此属性以前命名为<code>scoped</code>。</p> +</div> + +<h2 id="语法">语法</h2> + +<pre class="syntaxbox notranslate">var <em>composed</em> = <em>Event</em>.composed;</pre> + +<h3 id="值">值</h3> + +<p>如果返回的 {{jsxref("Boolean")}} 值为 <code>true</code>,表明当事件到达 shadow DOM 的根节点(也就是 shadow DOM 中事件开始传播的第一个节点)时,事件可以从 shadow DOM 传递到一般 DOM。当然,事件要具有可传播性,即该事件的 {{domxref("Event.bubbles", "bubbles")}} 属性必须为 <code>true</code>。你也可以通过调用 {{domxref("Event.composedPath", "composedPath()")}} 来查看事件从 shadow DOM 传播到普通 DOM 的路径。</p> + +<p>如果属性值为 <code>false</code>,那么事件将不会跨越 shadow DOM 的边界传播。</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('DOM WHATWG', '#dom-event-composed', 'composed')}}</td> + <td>{{Spec2('DOM WHATWG')}}</td> + <td></td> + </tr> + </tbody> +</table> + +<h2 id="浏览器兼容性">浏览器兼容性</h2> + +<div>{{CompatibilityTable}}</div> + +<div id="compat-desktop"> +<table class="compat-table"> + <tbody> + <tr> + <th>特点</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>基本支持</td> + <td>{{CompatChrome(53.0)}}</td> + <td>{{CompatUnknown}}</td> + <td>{{CompatGeckoDesktop(52)}}</td> + <td>{{CompatUnknown}}</td> + <td>{{CompatUnknown}}</td> + <td>{{CompatUnknown}}</td> + </tr> + </tbody> +</table> +</div> + +<div id="compat-mobile"> +<table class="compat-table"> + <tbody> + <tr> + <th>特点</th> + <th>Android</th> + <th>Android Webview</th> + <th>Firefox Mobile (Gecko)</th> + <th>Firefox OS</th> + <th>IE Mobile</th> + <th>Opera Mobile</th> + <th>Safari Mobile</th> + <th>Chrome for Android</th> + </tr> + <tr> + <td>基本支持</td> + <td>{{CompatNo}}</td> + <td>{{CompatChrome(53.0)}}</td> + <td>{{CompatGeckoMobile(52)}}</td> + <td>{{CompatUnknown}}</td> + <td>{{CompatUnknown}}</td> + <td>{{CompatUnknown}}</td> + <td>{{CompatUnknown}}</td> + <td>{{CompatChrome(53.0)}}</td> + </tr> + </tbody> +</table> +</div> |