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	<title>Play hard, study hard! &#187; flash</title>
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		<title>ExternalInterface</title>
		<link>http://blog.pakpak.jp/2009/09/12/external-interface-call/</link>
		<comments>http://blog.pakpak.jp/2009/09/12/external-interface-call/#comments</comments>
		<pubDate>Sat, 12 Sep 2009 12:37:29 +0000</pubDate>
		<dc:creator>pakpak</dc:creator>
				<category><![CDATA[未分類]]></category>
		<category><![CDATA[flash]]></category>
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		<category><![CDATA[プログラム]]></category>

		<guid isPermaLink="false">http://blog.pakpak.jp/?p=158</guid>
		<description><![CDATA[一つ前のエントリで取り上げたlog.asの実装のこの部分。

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        try &#123;       
          Exte [...]]]></description>
			<content:encoded><![CDATA[<p>一つ前のエントリで取り上げたlog.asの実装のこの部分。</p>

<div class="wp_syntax"><table><tr><td class="line_numbers"><pre>25
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</pre></td><td class="code"><pre class="actionscript" style="font-family:monospace;">        <span style="color: #0066CC;">try</span> <span style="color: #66cc66;">&#123;</span>       
          ExternalInterface.<span style="color: #0066CC;">call</span><span style="color: #66cc66;">&#40;</span><span style="color: #66cc66;">&lt;&gt;&lt;!</span><span style="color: #66cc66;">&#91;</span>CDATA<span style="color: #66cc66;">&#91;</span>
              <span style="color: #66cc66;">&#40;</span><span style="color: #000000; font-weight: bold;">function</span><span style="color: #66cc66;">&#40;</span>obj, klassName<span style="color: #66cc66;">&#41;</span> <span style="color: #66cc66;">&#123;</span>
               obj.<span style="color: #0066CC;">toString</span> = <span style="color: #000000; font-weight: bold;">function</span><span style="color: #66cc66;">&#40;</span><span style="color: #66cc66;">&#41;</span> <span style="color: #66cc66;">&#123;</span> <span style="color: #b1b100;">return</span> klassName <span style="color: #66cc66;">&#125;</span>;
               console.<span style="color: #0066CC;">log</span><span style="color: #66cc66;">&#40;</span>obj<span style="color: #66cc66;">&#41;</span>;
               ;<span style="color: #66cc66;">&#125;</span><span style="color: #66cc66;">&#41;</span>  
              <span style="color: #66cc66;">&#93;</span><span style="color: #66cc66;">&#93;</span><span style="color: #66cc66;">&gt;&lt;/&gt;</span>.<span style="color: #0066CC;">toString</span><span style="color: #66cc66;">&#40;</span><span style="color: #66cc66;">&#41;</span>,
              ObjectUtil.<span style="color: #006600;">clone</span><span style="color: #66cc66;">&#40;</span>arg<span style="color: #66cc66;">&#41;</span>,
              getQualifiedClassName<span style="color: #66cc66;">&#40;</span>arg<span style="color: #66cc66;">&#41;</span>
              <span style="color: #66cc66;">&#41;</span>;    
        <span style="color: #66cc66;">&#125;</span> <span style="color: #0066CC;">catch</span><span style="color: #66cc66;">&#40;</span><span style="color: #0066CC;">e</span>:<span style="color: #0066CC;">Error</span><span style="color: #66cc66;">&#41;</span> <span style="color: #66cc66;">&#123;</span>
          ExternalInterface.<span style="color: #0066CC;">call</span><span style="color: #66cc66;">&#40;</span><span style="color: #ff0000;">'console.log'</span>, r<span style="color: #66cc66;">&#41;</span>;
        <span style="color: #66cc66;">&#125;</span></pre></td></tr></table></div>

<p>ExternalInterface.callの第一引数がなんか見慣れない書式。<br />
なんかオブジェクトつくってtoStringしてる？<br />
調べてみた。</p>

<div class="wp_syntax"><div class="code"><pre class="actionscript" style="font-family:monospace;">package <span style="color: #66cc66;">&#123;</span>
  <span style="color: #0066CC;">import</span> flash.<span style="color: #006600;">display</span>.<span style="color: #66cc66;">*</span>;
  <span style="color: #0066CC;">public</span> <span style="color: #000000; font-weight: bold;">class</span> Hello <span style="color: #0066CC;">extends</span> Sprite <span style="color: #66cc66;">&#123;</span>
    <span style="color: #0066CC;">public</span> <span style="color: #000000; font-weight: bold;">function</span> Hello<span style="color: #66cc66;">&#40;</span><span style="color: #66cc66;">&#41;</span><span style="color: #66cc66;">&#123;</span>
      <span style="color: #000000; font-weight: bold;">var</span> hoge:<span style="color: #0066CC;">Object</span> = <span style="color: #66cc66;">&lt;&gt;&lt;!</span><span style="color: #66cc66;">&#91;</span>CDATA<span style="color: #66cc66;">&#91;</span>
        <span style="color: #66cc66;">&#40;</span><span style="color: #000000; font-weight: bold;">function</span><span style="color: #66cc66;">&#40;</span>obj, klassName<span style="color: #66cc66;">&#41;</span> <span style="color: #66cc66;">&#123;</span>
         obj.<span style="color: #0066CC;">toString</span> = <span style="color: #000000; font-weight: bold;">function</span><span style="color: #66cc66;">&#40;</span><span style="color: #66cc66;">&#41;</span> <span style="color: #66cc66;">&#123;</span> <span style="color: #b1b100;">return</span> klassName <span style="color: #66cc66;">&#125;</span>;
         console.<span style="color: #0066CC;">log</span><span style="color: #66cc66;">&#40;</span>obj<span style="color: #66cc66;">&#41;</span>;
         ;<span style="color: #66cc66;">&#125;</span><span style="color: #66cc66;">&#41;</span>
        <span style="color: #66cc66;">&#93;</span><span style="color: #66cc66;">&#93;</span><span style="color: #66cc66;">&gt;&lt;/&gt;</span>;
      <span style="color: #0066CC;">log</span><span style="color: #66cc66;">&#40;</span>hoge<span style="color: #66cc66;">&#41;</span>;
      <span style="color: #0066CC;">log</span><span style="color: #66cc66;">&#40;</span>hoge.<span style="color: #0066CC;">toString</span><span style="color: #66cc66;">&#40;</span><span style="color: #66cc66;">&#41;</span><span style="color: #66cc66;">&#41;</span>; 
    <span style="color: #66cc66;">&#125;</span> 
  <span style="color: #66cc66;">&#125;</span>
<span style="color: #66cc66;">&#125;</span></pre></div></div>

<p><a href="http://blog.pakpak.jp/wp-content/uploads/2009/09/d8eddf5329882d76f0b5323c6fd8e79a1.png"><img src="http://blog.pakpak.jp/wp-content/uploads/2009/09/d8eddf5329882d76f0b5323c6fd8e79a1.png" alt="ピクチャ 3" title="ピクチャ 3" width="831" height="180" class="alignleft size-full wp-image-163" /></a><br />
なるほどー。CDATAセクションのみのXMLListオブジェクトつくってtoStringしてるんですね。それにしても変わった書式。</p>
<p>というか、<a href=" http://livedocs.adobe.com/flex/2_jp/langref/flash/external/ExternalInterface.html">ExternalInterface.call</a>の第一引数、evalしたときに関数になってたら何でもokなんすね。<br />
これならjs,flashの連携が楽にできそ。</p>
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