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diff --git a/files/zh-cn/web/api/htmlelement/focus/index.html b/files/zh-cn/web/api/htmlelement/focus/index.html deleted file mode 100644 index eb47aff613..0000000000 --- a/files/zh-cn/web/api/htmlelement/focus/index.html +++ /dev/null @@ -1,158 +0,0 @@ ---- -title: HTMLElement.focus() -slug: Web/API/HTMLElement/focus -tags: - - API - - 参考 - - 方法 - - 焦点 -translation_of: Web/API/HTMLOrForeignElement/focus ---- -<div>{{ APIRef("HTML DOM") }}</div> - -<p><span class="seoSummary"><strong><code>HTMLElement.focus()</code></strong> 方法用于设置焦点，如果被指定的元素可以获取到焦点，焦点就会被设置到该元素上。得到焦点的元素会作为键盘导航时的当前元素/基准元素，也会接收到相应的键盘事件等事件。</span></p> - -<h2 id="语法">语法</h2> - -<pre class="syntaxbox"><var>element</var>.focus(<var>options</var>); // Object parameter</pre> - -<h3 id="参数">参数</h3> - -<dl> - <dt><code>options</code> {{optional_inline}}</dt> - <dd>An optional object providing options to control aspects of the focusing process. This object may contain the following property:</dd> - <dd> - <dl> - <dt><code>preventScroll</code> {{optional_inline}}</dt> - <dd>A Boolean value indicating whether or not the browser should scroll the document to bring the newly-focused element into view. A value of <code>false</code> for <code>preventScroll</code> (the default) means that the browser will scroll the element into view after focusing it. If <code>preventScroll</code> is set to <code>true</code>, no scrolling will occur.</dd> - </dl> - </dd> -</dl> - -<h2 id="示例">示例</h2> - -<h3 id="将焦点设置到文本框上">将焦点设置到文本框上</h3> - -<h4 id="JavaScript">JavaScript</h4> - -<pre class="brush: js">focusMethod = function getFocus() { - document.getElementById("myTextField").focus(); -}</pre> - -<h4 id="HTML">HTML</h4> - -<pre class="brush: html"><input type="text" id="myTextField" value="Text field."> -<p></p> -<button type="button" onclick="focusMethod()">点这里将焦点设置到文本框上！</button> -</pre> - -<h4 id="结果">结果</h4> - -<p>{{ EmbedLiveSample('Focus_on_a_text_field') }}</p> - -<h3 id="将焦点设置到按钮上">将焦点设置到按钮上</h3> - -<h4 id="JavaScript_2">JavaScript</h4> - -<pre>focusMethod = function getFocus() { - document.getElementById("myButton").focus(); -}</pre> - -<h4 id="HTML_2">HTML</h4> - -<pre><button type="button" id="myButton">Click Me!</button> -<p></p> -<button type="button" onclick="focusMethod()">点这里将焦点设置到按钮上！</button></pre> - -<h4 id="结果_2">结果</h4> - -<p>{{ EmbedLiveSample('Focus_on_a_button') }}</p> - -<h3 id="Focus_with_focusOption">Focus with focusOption</h3> - -<h4 id="JavaScript_3">JavaScript</h4> - -<pre class="brush: js">focusScrollMethod = function getFocus() { - document.getElementById("myButton").focus({preventScroll:false}); -} -focusNoScrollMethod = function getFocusWithoutScrolling() { - document.getElementById("myButton").focus({preventScroll:true}); -} - -</pre> - -<h4 id="HTML_3">HTML</h4> - -<pre class="brush: html"><button type="button" onclick="focusScrollMethod()">Click me to focus on the button!</button> -<button type="button" onclick="focusNoScrollMethod()">Click me to focus on the button without scrolling!</button> - -<div id="container" style="height: 1000px; width: 1000px;"> -<button type="button" id="myButton" style="margin-top: 500px;">Click Me!</button> -</div> - -</pre> - -<h4 id="结果_3">结果</h4> - -<p>{{ EmbedLiveSample('Focus_prevent_scroll') }}</p> - -<h2 id="规范">规范</h2> - -<table class="standard-table"> - <thead> - <tr> - <th scope="col">规范</th> - <th scope="col">状态</th> - <th scope="col">备注</th> - </tr> - </thead> - <tbody> - <tr> - <td>{{SpecName('HTML WHATWG', 'editing.html#dom-focus', 'focus')}}</td> - <td>{{Spec2('HTML WHATWG')}}</td> - <td></td> - </tr> - <tr> - <td>{{SpecName('HTML5.1', 'editing.html#focus()-0', 'focus')}}</td> - <td>{{Spec2('HTML5.1')}}</td> - <td></td> - </tr> - <tr> - <td>{{SpecName('HTML5 W3C', 'editing.html#dom-focus', 'focus')}}</td> - <td>{{Spec2('HTML5 W3C')}}</td> - <td></td> - </tr> - <tr> - <td>{{SpecName('DOM2 HTML', 'html.html#ID-32130014', 'focus')}}</td> - <td>{{Spec2('DOM2 HTML')}}</td> - <td></td> - </tr> - <tr> - <td>{{SpecName('DOM1', 'level-one-html.html#method-focus', 'focus')}}</td> - <td>{{Spec2('DOM1')}}</td> - <td></td> - </tr> - </tbody> -</table> - -<h2 id="备注">备注</h2> - -<ul> - <li>If you call <code>HTMLElement.focus()</code> from a mousedown event handler, you must call <code>event.preventDefault()</code> to keep the focus from leaving the <code>HTMLElement</code></li> - <li> - <p>Behaviour of the focus in relation to different HTML features like {{HTMLAttrxRef("tabindex")}} or {{Glossary("shadow tree","shadow dom", 1)}}, which previously remained under-specified, were recently updated (as October of 2019). Checkout <a href="https://blog.whatwg.org/focusing-on-focus">WHATWG blog</a> for more info.</p> - </li> -</ul> - -<h2 id="浏览器兼容性">浏览器兼容性</h2> - - - -<p>{{Compat("api.HTMLElement.focus")}}</p> - -<h2 id="参见">参见</h2> - -<ul> - <li>DOM method {{domxref("HTMLElement.blur()")}} to remove the focus from an element.</li> - <li>{{ domxref("document.activeElement") }} to know which is the currently focused element.</li> -</ul> |