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<title>[22849] trunk/wp-includes/class-wp-image-editor-imagick.php: More feature detection in WP_Image_Editor_Imagick::test().</title>
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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://core.trac.wordpress.org/changeset/22849">22849</a></dd>
<dt>Author</dt> <dd>ryan</dd>
<dt>Date</dt> <dd>2012-11-26 22:40:34 +0000 (Mon, 26 Nov 2012)</dd>
</dl>
<h3>Log Message</h3>
<pre>More feature detection in WP_Image_Editor_Imagick::test().
Check existence of setIteratorIndex().
Props DH-Shredder, markoheijnen
see <a href="http://core.trac.wordpress.org/ticket/22543">#22543</a></pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkwpincludesclasswpimageeditorimagickphp">trunk/wp-includes/class-wp-image-editor-imagick.php</a></li>
</ul>
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<h3>Diff</h3>
<a id="trunkwpincludesclasswpimageeditorimagickphp"></a>
<div class="modfile"><h4>Modified: trunk/wp-includes/class-wp-image-editor-imagick.php (22848 => 22849)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/wp-includes/class-wp-image-editor-imagick.php 2012-11-26 22:32:35 UTC (rev 22848)
+++ trunk/wp-includes/class-wp-image-editor-imagick.php 2012-11-26 22:40:34 UTC (rev 22849)
</span><span class="lines">@@ -38,9 +38,49 @@
</span><span class="cx"> * @return boolean
</span><span class="cx"> */
</span><span class="cx"> public static function test( $args = array() ) {
</span><del>- if ( ! extension_loaded( 'imagick' ) || ! is_callable( 'Imagick', 'queryFormats' ) )
</del><ins>+
+ $required_methods = array(
+ 'clear',
+ 'destroy',
+ 'valid',
+ 'getimage',
+ 'writeimage',
+ 'getimageblob',
+ 'getimagegeometry',
+ 'getimageformat',
+ 'setimageformat',
+ 'setimagecompression',
+ 'setimagecompressionquality',
+ 'setimagepage',
+ 'scaleimage',
+ 'cropimage',
+ 'rotateimage',
+ 'flipimage',
+ 'flopimage',
+ );
+
+ // Check for requirements
+ if ( ! extension_loaded( 'imagick' ) ||
+ ! class_exists( 'Imagick' ) ||
+ ! is_callable( 'Imagick', 'queryFormats' ) ||
+ ! class_exists( 'ImagickPixel' ) ||
+ ! defined( 'imagick::COMPRESSION_JPEG' ) ||
+ array_diff( $required_methods, get_class_methods( 'Imagick' ) ) ) {
+
</ins><span class="cx"> return false;
</span><ins>+ }
</ins><span class="cx">
</span><ins>+ /**
+ * setIteratorIndex is optional unless mime is an animated format.
+ * Here, we just say no if a user is attempting to
+ * edit a GIF and setIteratorIndex isn't available.
+ */
+ if ( ( ! isset( $args['mime_type'] ) || $args['mime_type'] == 'image/gif' ) &&
+ ! method_exists( 'Imagick', 'setIteratorIndex' ) ) {
+
+ return false;
+ }
+
</ins><span class="cx"> return true;
</span><span class="cx"> }
</span><span class="cx">
</span><span class="lines">@@ -88,8 +128,10 @@
</span><span class="cx"> if( ! $this->image->valid() )
</span><span class="cx"> return new WP_Error( 'invalid_image', __('File is not an image.'), $this->file);
</span><span class="cx">
</span><del>- // Select the first frame to handle animated GIFs properly
- $this->image->setIteratorIndex(0);
</del><ins>+ // Select the first frame to handle animated images properly
+ if ( is_callable( array( $this->image, 'setIteratorIndex' ) ) )
+ $this->image->setIteratorIndex(0);
+
</ins><span class="cx"> $this->mime_type = $this->get_mime_type( $this->image->getImageFormat() );
</span><span class="cx"> }
</span><span class="cx"> catch ( Exception $e ) {
</span></span></pre>
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