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+---
+title: 'Element: DOMActivate イベント'
+slug: Web/API/Element/DOMActivate_event
+tags:
+  - API
+  - DOM
+  - Deprecated
+  - Element
+  - Event
+  - Input
+  - Mouse Events
+  - MouseEvent
+  - Reference
+  - activate event
+  - onactivate
+translation_of: Web/API/Element/DOMActivate_event
+---
+<p>{{APIRef}}</p>
+
+<div>{{Deprecated_Header}}</div>
+
+<p><code><strong>DOMActivate</strong></code> イベントは、要素がアクティブになったとき、例えば、マウスを使ったりキーを押したりしてそこに移動したときに発行されます。</p>
+
+<table class="properties">
+ <tbody>
+  <tr>
+   <th scope="row">バブリング</th>
+   <td>あり</td>
+  </tr>
+  <tr>
+   <th scope="row">キャンセル</th>
+   <td>可</td>
+  </tr>
+  <tr>
+   <th scope="row">インターフェイス</th>
+   <td>{{domxref("MouseEvent")}}</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Examples" name="Examples">例</h2>
+
+<pre class="brush: html notranslate">&lt;svg xmlns="http://www.w3.org/2000/svg" version="1.2" baseProfile="tiny"
+     xmlns:ev="http://www.w3.org/2001/xml-events"
+     width="6cm" height="5cm" viewBox="0 0 600 500"&gt;
+
+  &lt;desc&gt;Example: invoke an ECMAScript function from a DOMActivate event&lt;/desc&gt;
+
+  &lt;!-- ECMAScript to change the radius --&gt;
+  &lt;script type="application/ecmascript"&gt;&lt;![CDATA[
+    function change(evt) {
+      var circle = evt.target;
+      var currentRadius = circle.getFloatTrait("r");
+      if (currentRadius == 100)
+        circle.setFloatTrait("r", currentRadius * 2);
+      else
+        circle.setFloatTrait("r", currentRadius * 0.5);
+    }
+  ]]&gt;&lt;/script&gt;
+
+  &lt;!-- Act on each DOMActivate event --&gt;
+  &lt;circle cx="300" cy="225" r="100" fill="red"&gt;
+    &lt;handler type="application/ecmascript" ev:event="DOMActivate"&gt; change(evt); &lt;/handler&gt;
+  &lt;/circle&gt;
+
+  &lt;text x="300" y="480" font-family="Verdana" font-size="35" text-anchor="middle"&gt;
+    Activate the circle to change its size
+  &lt;/text&gt;
+&lt;/svg&gt;
+</pre>
+
+<p>{{EmbedLiveSample("Examples", 640, 200)}}</p>
+
+<h2 id="Specifications" name="Specifications">仕様書</h2>
+
+<table class="standard-table">
+ <thead>
+  <tr>
+   <th scope="col">仕様書</th>
+   <th scope="col">状態</th>
+  </tr>
+ </thead>
+ <tbody>
+  <tr>
+   <td>{{SpecName('UI Events', '#event-type-DOMActivate', 'DOMActivate')}}</td>
+   <td>{{Spec2('UI Events')}}</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Browser_compatibility" name="Browser_compatibility">ブラウザーの互換性</h2>
+
+<p>{{Compat("api.Element.DOMActivate_event")}}</p>
+
+<h2 id="See_also" name="See_also">関連情報</h2>
+
+<ul>
+ <li>{{domxref("MouseEvent")}}</li>
+ <li>{{domxref("Element/mousedown_event", "mousedown")}}</li>
+ <li>{{domxref("Element/mouseup_event", "mouseup")}}</li>
+ <li>{{domxref("Element/mousemove_event", "mousemove")}}</li>
+</ul>