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	<title>Ordo Ab Chao - Il blog di Rocco Agostino &#187; Sviluppo WEB</title>
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	<link>http://blog.roccoagostino.eu</link>
	<description>Il mio blog personale in cui si discute di libri,musica,scrittura,poesia,video,foto,news,attualità,informatica e tecnologia. Un &#34;corner&#34; da condividere con voi che commentate,criticate o apprezzate.</description>
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		<title>Thumbnails per WordPress.com Popular Posts</title>
		<link>http://blog.roccoagostino.eu/2011/10/23/thumbnails-per-wordpress-com-popular-posts/</link>
		<comments>http://blog.roccoagostino.eu/2011/10/23/thumbnails-per-wordpress-com-popular-posts/#comments</comments>
		<pubDate>Sun, 23 Oct 2011 17:49:58 +0000</pubDate>
		<dc:creator>Rocky</dc:creator>
				<category><![CDATA[In evidenza]]></category>
		<category><![CDATA[Informatica]]></category>
		<category><![CDATA[Sviluppo WEB]]></category>
		<category><![CDATA[WordPress]]></category>
		<category><![CDATA[blog]]></category>
		<category><![CDATA[funzioni]]></category>
		<category><![CDATA[how-to]]></category>
		<category><![CDATA[PHP]]></category>
		<category><![CDATA[plugin]]></category>
		<category><![CDATA[programmazione]]></category>
		<category><![CDATA[thumbnail]]></category>
		<category><![CDATA[web 2.0]]></category>
		<category><![CDATA[wordpress]]></category>
		<category><![CDATA[WordPress.com Popular Posts]]></category>

		<guid isPermaLink="false">http://blog.roccoagostino.eu/?p=829</guid>
		<description><![CDATA[<img src="http://www.roccoagostino.eu/wp/wp-content/uploads/css_ico.JPG" width="32" height="32" alt="" title="Sviluppo WEB" /><img src="http://www.roccoagostino.eu/wp/wp-content/uploads/wordpress_ico.jpg" width="33" height="33" alt="" title="WordPress" /><br/>Modifica del plugin WordPress.com Popular Posts per inserire nella lista degli articoli più popolari, la thumbnail associata al post.]]></description>
			<content:encoded><![CDATA[<img src="http://www.roccoagostino.eu/wp/wp-content/uploads/css_ico.JPG" width="32" height="32" alt="" title="Sviluppo WEB" /><img src="http://www.roccoagostino.eu/wp/wp-content/uploads/wordpress_ico.jpg" width="33" height="33" alt="" title="WordPress" /><br/><p>Per la visualizazione degli articoli più popolari uso il plugin <a href="http://wordpress.org/extend/plugins/wordpress-popular-posts/" target="_blank">WordPress.com Popular Post</a>. Tale plugin permette molte personalizzazioni, ma manca la possibilità di poter visualizzare le immagini riferite ai post. L&#8217;idea di fondo parte da <a href="http://www.geoffblog.com/2010/07/thumbnails-for-wordpresscom-popular.html" target="_blank">questo articolo</a> che spiega come aggiungere delle immagini all&#8217;elenco dei post con l&#8217;ausilio di uno script esterno. Senza utilizzare script esterni, possiamo, invece, sfruttare le <a href="http://blog.roccoagostino.eu/2011/10/06/modificare-il-tema-di-wordpress-parte-1-la-funzione-post-thumbnail/" target="_blank">nuove features</a> di WordPress 3.x.<br />
<span id="more-829"></span><br />
Nel momento in cui vogliamo il percorso dell&#8217;immagine associata al post il programma procederà in questo modo:</p>
<ul>
<li>cerca la thumbnail associata al post;</li>
<li>nel caso in cui il tema non supporti tale funzione o non si è inserita in fase di creazione del post, cerca la prima immagine nel post;</li>
<li>nel caso in cui il post non abbia neanche una immagine, me associa una di default.</li>
</ul>
<p>&nbsp;</p>
<p>Vediamo come:</p>
<p>&nbsp;</p>
<h1>1) Modifica del plugin</h1>
<p>&nbsp;</p>
<p>Andando in Plugin-&gt;Editor selezioniamo il plugin WPPP e quindi il file <em>wppp.php</em>.</p>
<p>&nbsp;</p>
<p>Per prima cosa troviamo il codice:</p>
<p>&nbsp;</p>

<div class="wp_syntax"><table><tr><td class="line_numbers"><pre>1
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</pre></td><td class="code"><pre class="php" style="font-family:monospace;"><span style="color: #666666; font-style: italic;">// Replace format with data</span>
<span style="color: #000088;">$replace</span> <span style="color: #339933;">=</span> <span style="color: #990000;">array</span><span style="color: #009900;">&#40;</span>
<span style="color: #0000ff;">'%post_permalink%'</span> <span style="color: #339933;">=&amp;</span>gt<span style="color: #339933;">;</span> get_permalink<span style="color: #009900;">&#40;</span> <span style="color: #000088;">$post</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'post_id'</span><span style="color: #009900;">&#93;</span> <span style="color: #009900;">&#41;</span><span style="color: #339933;">,</span>
<span style="color: #0000ff;">'%post_title%'</span> <span style="color: #339933;">=&amp;</span>gt<span style="color: #339933;">;</span> esc_html<span style="color: #009900;">&#40;</span> <span style="color: #000088;">$this</span><span style="color: #339933;">-&amp;</span>gt<span style="color: #339933;">;</span>truncateText<span style="color: #009900;">&#40;</span> <span style="color: #000088;">$post</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'post_title'</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">,</span> <span style="color: #000088;">$instance</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'title_length'</span><span style="color: #009900;">&#93;</span> <span style="color: #009900;">&#41;</span> <span style="color: #009900;">&#41;</span><span style="color: #339933;">,</span>
<span style="color: #0000ff;">'%post_title_attribute%'</span> <span style="color: #339933;">=&amp;</span>gt<span style="color: #339933;">;</span> esc_attr<span style="color: #009900;">&#40;</span> <span style="color: #000088;">$post</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'post_title'</span><span style="color: #009900;">&#93;</span> <span style="color: #009900;">&#41;</span><span style="color: #339933;">,</span>
<span style="color: #0000ff;">'%post_views%'</span> <span style="color: #339933;">=&amp;</span>gt<span style="color: #339933;">;</span> number_format_i18n<span style="color: #009900;">&#40;</span> <span style="color: #000088;">$post</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'views'</span><span style="color: #009900;">&#93;</span> <span style="color: #009900;">&#41;</span>
<span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span></pre></td></tr></table></div>

<p>&nbsp;</p>
<p>e aggiungiamo la seguente riga:</p>
<p>&nbsp;</p>

<div class="wp_syntax"><table><tr><td class="line_numbers"><pre>1
</pre></td><td class="code"><pre class="php" style="font-family:monospace;"><span style="color: #000088;">$replace</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'%post_thumb%'</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">=</span>return_post_image<span style="color: #009900;">&#40;</span><span style="color: #000088;">$post</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'post_id'</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span></pre></td></tr></table></div>

<p>&nbsp;</p>
<p>A questo punto dobbiamo inserire la funzione <em>return_post_image</em>.</p>
<p>&nbsp;</p>
<h1>2) Modifica del file function.php</h1>
<p>&nbsp;</p>
<p>Nel file <em>function.php</em> aggiungiamo:</p>
<p>&nbsp;</p>

<div class="wp_syntax"><table><tr><td class="line_numbers"><pre>1
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</pre></td><td class="code"><pre class="php" style="font-family:monospace;"><span style="color: #009933; font-style: italic;">/**
* Capture the first image from the post.
* @global object $post
* @global object $posts
* @return string
*/</span>
<span style="color: #000000; font-weight: bold;">function</span> theme_function_capture_first_image<span style="color: #009900;">&#40;</span><span style="color: #000088;">$p</span><span style="color: #339933;">=</span><span style="color: #009900; font-weight: bold;">null</span><span style="color: #009900;">&#41;</span> <span style="color: #009900;">&#123;</span>
<span style="color: #000088;">$firstImg</span> <span style="color: #339933;">=</span> <span style="color: #0000ff;">''</span><span style="color: #339933;">;</span>
<span style="color: #b1b100;">if</span> <span style="color: #009900;">&#40;</span><span style="color: #990000;">empty</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$p</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span> <span style="color: #009900;">&#123;</span>
<span style="color: #000000; font-weight: bold;">global</span> <span style="color: #000088;">$post</span><span style="color: #339933;">,</span> <span style="color: #000088;">$posts</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$firstImg</span> <span style="color: #339933;">=</span> <span style="color: #0000ff;">''</span><span style="color: #339933;">;</span>
<span style="color: #990000;">ob_start</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span> <span style="color: #990000;">ob_end_clean</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$output</span> <span style="color: #339933;">=</span> <span style="color: #990000;">preg_match_all</span><span style="color: #009900;">&#40;</span><span style="color: #0000ff;">'//i'</span><span style="color: #339933;">,</span> <span style="color: #000088;">$post</span><span style="color: #339933;">-&amp;</span>gt<span style="color: #339933;">;</span>post_content<span style="color: #339933;">,</span> <span style="color: #000088;">$matches</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$firstImg</span> <span style="color: #339933;">=</span> <span style="color: #000088;">$matches</span><span style="color: #009900;">&#91;</span><span style="color: #cc66cc;">1</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#91;</span><span style="color: #cc66cc;">0</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">;</span>
<span style="color: #009900;">&#125;</span> <span style="color: #b1b100;">else</span> <span style="color: #009900;">&#123;</span>
<span style="color: #000088;">$output</span> <span style="color: #339933;">=</span> <span style="color: #990000;">preg_match_all</span><span style="color: #009900;">&#40;</span><span style="color: #0000ff;">'//i'</span><span style="color: #339933;">,</span> <span style="color: #000088;">$p</span><span style="color: #339933;">-&amp;</span>gt<span style="color: #339933;">;</span>post_content<span style="color: #339933;">,</span> <span style="color: #000088;">$matches</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$firstImg</span> <span style="color: #339933;">=</span> <span style="color: #000088;">$matches</span><span style="color: #009900;">&#91;</span><span style="color: #cc66cc;">1</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#91;</span><span style="color: #cc66cc;">0</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">;</span>
<span style="color: #009900;">&#125;</span>
<span style="color: #b1b100;">return</span> <span style="color: #000088;">$firstImg</span><span style="color: #339933;">;</span>
<span style="color: #009900;">&#125;</span>
&nbsp;
<span style="color: #666666; font-style: italic;">// ritorna una immagine associata al post: thumb, prima immagine del post, default</span>
&nbsp;
<span style="color: #000000; font-weight: bold;">function</span> return_post_image<span style="color: #009900;">&#40;</span><span style="color: #000088;">$post</span><span style="color: #339933;">,</span><span style="color: #000088;">$dim</span><span style="color: #009900;">&#41;</span> <span style="color: #009900;">&#123;</span>
<span style="color: #000088;">$imgpath</span> <span style="color: #339933;">=</span> <span style="color: #0000ff;">''</span><span style="color: #339933;">;</span>
<span style="color: #b1b100;">if</span> <span style="color: #009900;">&#40;</span><span style="color: #990000;">empty</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$dim</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span> <span style="color: #000088;">$dim</span> <span style="color: #339933;">=</span> <span style="color: #990000;">array</span><span style="color: #009900;">&#40;</span><span style="color: #cc66cc;">60</span><span style="color: #339933;">,</span><span style="color: #cc66cc;">60</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$imgpath</span><span style="color: #339933;">=</span>get_the_post_thumbnail<span style="color: #009900;">&#40;</span><span style="color: #000088;">$post</span><span style="color: #339933;">,</span> <span style="color: #000088;">$dim</span> <span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #b1b100;">if</span> <span style="color: #009900;">&#40;</span><span style="color: #990000;">empty</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$imgpath</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span> <span style="color: #009900;">&#123;</span>
<span style="color: #000088;">$imgpath</span> <span style="color: #339933;">=</span> theme_function_capture_first_image<span style="color: #009900;">&#40;</span>get_post<span style="color: #009900;">&#40;</span><span style="color: #000088;">$post</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #b1b100;">if</span> <span style="color: #009900;">&#40;</span><span style="color: #990000;">empty</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$imgpath</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span> <span style="color: #000088;">$imgpath</span> <span style="color: #339933;">=</span> get_bloginfo<span style="color: #009900;">&#40;</span><span style="color: #0000ff;">'template_directory'</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">.</span><span style="color: #0000ff;">'/images/default_pp.gif'</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$imgpath</span> <span style="color: #339933;">=</span> <span style="color: #0000ff;">'&lt;img src=&quot;'</span> <span style="color: #339933;">.</span> <span style="color: #000088;">$imgpath</span> <span style="color: #339933;">.</span> <span style="color: #0000ff;">'&quot; alt=&quot;'</span><span style="color: #339933;">.</span> <span style="color: #000088;">$title</span> <span style="color: #339933;">.</span><span style="color: #0000ff;">'&quot; /&gt;'</span><span style="color: #339933;">;</span>
<span style="color: #009900;">&#125;</span>
<span style="color: #b1b100;">return</span> <span style="color: #000088;">$imgpath</span><span style="color: #339933;">;</span>
<span style="color: #009900;">&#125;</span></pre></td></tr></table></div>

<p>&nbsp;</p>
<p>N.B.: Di default la dimensione dell&#8217;imamgine è di 60&#215;60. Nel caso in cui noi volessimo una immagine di dimensione diversa, per esempio 32&#215;32, basta modificare la chiamata alla funzione nel file <em>wppp.php</em> in questo modo:</p>
<p>&nbsp;</p>

<div class="wp_syntax"><table><tr><td class="line_numbers"><pre>1
</pre></td><td class="code"><pre class="php" style="font-family:monospace;">replace<span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'%post_thumb%'</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">=</span>return_post_image<span style="color: #009900;">&#40;</span><span style="color: #000088;">$post</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'post_id'</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">,</span> <span style="color: #990000;">array</span><span style="color: #009900;">&#40;</span><span style="color: #cc66cc;">32</span><span style="color: #339933;">,</span><span style="color: #cc66cc;">32</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span></pre></td></tr></table></div>

<p>&nbsp;</p>
<p>Un&#8217;altra modifica, in futuro, potrebbe essere fare in modo di passare la dimensione dei thumbs nel momento in cui viene richiamato il plugin.</p>
<p>&nbsp;</p>
<p>A questo punto quando richiamiamo il plugin avremo a possibilità di inserire il tag %post_thumb% che ci darà l&#8217;&lt;img&gt; riferita all&#8217;immagine associata al post.</p>
<p>&nbsp;</p>
<h1>3) il CSS per lo stile</h1>
<p>&nbsp;</p>
<p>Concludiamo con il css per lo stile dell&#8217;elenco dei post, che nel mio caso è:</p>
<p>&nbsp;</p>

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</pre></td><td class="code"><pre class="css" style="font-family:monospace;"><span style="color: #808080; font-style: italic;">/*Popular Posts*/</span>
&nbsp;
ul<span style="color: #6666ff;">.wppp_list</span> li <span style="color: #00AA00;">&#123;</span>
<span style="color: #000000; font-weight: bold;">min-height</span><span style="color: #00AA00;">:</span><span style="color: #933;">65px</span><span style="color: #00AA00;">;</span>
<span style="color: #000000; font-weight: bold;">display</span><span style="color: #00AA00;">:</span><span style="color: #993333;">block</span><span style="color: #00AA00;">;</span>
<span style="color: #000000; font-weight: bold;">list-style</span><span style="color: #00AA00;">:</span><span style="color: #993333;">none</span> <span style="color: #993333;">outside</span> <span style="color: #993333;">none</span><span style="color: #00AA00;">;</span>
<span style="color: #00AA00;">&#125;</span>
&nbsp;
ul<span style="color: #6666ff;">.wppp_list</span> img <span style="color: #00AA00;">&#123;</span>
<span style="color: #000000; font-weight: bold;">float</span><span style="color: #00AA00;">:</span><span style="color: #000000; font-weight: bold;">left</span><span style="color: #00AA00;">;</span>
<span style="color: #000000; font-weight: bold;">margin-right</span><span style="color: #00AA00;">:</span><span style="color: #933;">4px</span><span style="color: #00AA00;">;</span>
<span style="color: #000000; font-weight: bold;">border</span><span style="color: #00AA00;">:</span><span style="color: #933;">2px</span> <span style="color: #993333;">solid</span> <span style="color: #cc00cc;">#ECEFF5</span><span style="color: #00AA00;">;</span>
<span style="color: #00AA00;">&#125;</span></pre></td></tr></table></div>

<p>&nbsp;</p>
<p>Ed ecco il risultato finale:<br />
<a href="http://www.roccoagostino.eu/wp/wp-content/uploads/2011/10/ppp.png"><img class="aligncenter size-full wp-image-831" title="ppp" src="http://www.roccoagostino.eu/wp/wp-content/uploads/2011/10/ppp.png" alt="" width="378" height="473" /></a></p>
<p>&nbsp;</p>
<p><strong>Enjoy it!</strong></p>
<p>&nbsp;</p>
]]></content:encoded>
			<wfw:commentRss>http://blog.roccoagostino.eu/2011/10/23/thumbnails-per-wordpress-com-popular-posts/feed/</wfw:commentRss>
		<slash:comments>3</slash:comments>
		</item>
		<item>
		<title>Firebug estensione per Mozilla Firefox &#8211; modificare una pagina web on the fly</title>
		<link>http://blog.roccoagostino.eu/2009/09/10/firebug_estensione_mozilla_firefox_come_ti_modifico_una_pagina_web/</link>
		<comments>http://blog.roccoagostino.eu/2009/09/10/firebug_estensione_mozilla_firefox_come_ti_modifico_una_pagina_web/#comments</comments>
		<pubDate>Thu, 10 Sep 2009 17:17:01 +0000</pubDate>
		<dc:creator>Rocky</dc:creator>
				<category><![CDATA[Informatica]]></category>
		<category><![CDATA[Sviluppo WEB]]></category>
		<category><![CDATA[css]]></category>
		<category><![CDATA[estensione]]></category>
		<category><![CDATA[firefox]]></category>
		<category><![CDATA[html]]></category>
		<category><![CDATA[programmazione]]></category>
		<category><![CDATA[sviluppo siti web]]></category>
		<category><![CDATA[web]]></category>

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		<description><![CDATA[<img src="http://www.roccoagostino.eu/wp/wp-content/uploads/css_ico.JPG" width="32" height="32" alt="" title="Sviluppo WEB" /><br/>Per chi sviluppa siti web o anche per gli smanettoni dei temi di wordpress, cercando di migliorare il layout, il codice HTML o il CSS, uno strumento che senza dubbio non deve mancare è il programma Firebug. Firebug è un&#8217;estensione di Mozilla Firefox che permette il debug, la modifica e il monitoraggio di tutti gli [...]]]></description>
			<content:encoded><![CDATA[<img src="http://www.roccoagostino.eu/wp/wp-content/uploads/css_ico.JPG" width="32" height="32" alt="" title="Sviluppo WEB" /><br/><p>Per chi sviluppa siti web o anche per gli smanettoni dei temi di wordpress, cercando di migliorare il layout, il codice HTML o il CSS, uno strumento che senza dubbio non deve mancare è il programma Firebug. </p>
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<p>Firebug è un&#8217;estensione di Mozilla Firefox che permette il debug, la modifica e il monitoraggio di tutti gli aspetti di una pagina web, come i fogli di stile, il codice HTML, la struttura DOM e il codice JavaScript. Firebug fornisce anche altri strumenti per lo sviluppo web come una console JavaScript e una funzione chiamata &#8220;Net&#8221; che permette di monitorare il tempo di caricamento in millisecondi di immagini e script. Oltre che per il debug, Firebug è uno strumento indispensabile per testare la sicurezza e la performance dei siti web.<br />
Firebug è stato creato da Joe Hewitt, uno dei creatori di Firefox, ed è attualmente sviluppato e mantenuto dal <a href="http://getfirebug.com/workingGroup/" target="_blank">Firebug Working Group</a>.<br />
Addirittura FireBug è estendibile con add-on che aggiungono nuove funzionalità o migliorano quelle esistenti. Una selezione  la trovate in questo <a href="http://sixrevisions.com/web-development/10-useful-firefox-extensions-to-supercharge-firebug/" target="_blank">post</a> di SixRevisions.<br />
Una volta <a href="http://download.html.it/howto/leggi/11/installare-le-estensioni-per-firefox/" target="_blank">installato</a> come estensione di firefox, l&#8217;uso è semplicissimo.<br />
Il video seguente spiega chiaramente le potenzialità di Firebug (per una migliore visualizazione visualizzare il video a schermo interno).</p>
<p><center><iframe title="YouTube video player" class="youtube-player" type="text/html" width="425" height="344" src="http://www.youtube.com/embed/DcD4eGm4Oiw" frameborder="0" allowFullScreen="true"> </iframe></center></p>
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