web/lib/Zend/View/Helper/Gravatar.php
changeset 64 162c1de6545a
parent 19 1c2f13fd785c
child 68 ecaf28ffe26e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/Zend/View/Helper/Gravatar.php	Fri Mar 11 15:05:35 2011 +0100
@@ -0,0 +1,363 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_View
+ * @subpackage Helper
+ * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
+ * @version    $Id: Doctype.php 16971 2009-07-22 18:05:45Z mikaelkael $
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+
+/** Zend_View_Helper_HtmlElement */
+require_once 'Zend/View/Helper/HtmlElement.php';
+
+/**
+ * Helper for retrieving avatars from gravatar.com
+ *
+ * @package    Zend_View
+ * @subpackage Helper
+ * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @link http://pl.gravatar.com/site/implement/url
+ */
+class Zend_View_Helper_Gravatar extends Zend_View_Helper_HtmlElement
+{
+
+    /**
+     * URL to gravatar service
+     */
+    const GRAVATAR_URL = 'http://www.gravatar.com/avatar';
+    /**
+     * Secure URL to gravatar service
+     */
+    const GRAVATAR_URL_SECURE = 'https://secure.gravatar.com/avatar';
+
+    /**
+     * Gravatar rating
+     */
+    const RATING_G  = 'g';
+    const RATING_PG = 'pg';
+    const RATING_R  = 'r';
+    const RATING_X  = 'x';
+
+    /**
+     * Default gravatar image value constants
+     */
+    const DEFAULT_404       = '404';
+    const DEFAULT_MM        = 'mm';
+    const DEFAULT_IDENTICON = 'identicon';
+    const DEFAULT_MONSTERID = 'monsterid';
+    const DEFAULT_WAVATAR   = 'wavatar';
+
+    /**
+     * Options
+     *
+     * @var array
+     */
+    protected $_options = array(
+        'img_size'    => 80, 
+        'default_img' => self::DEFAULT_MM, 
+        'rating'      => self::RATING_G, 
+        'secure'      => null,
+    );
+
+    /**
+     * Email Adress
+     *
+     * @var string
+     */
+    protected $_email;
+
+    /**
+     * Attributes for HTML image tag
+     *
+     * @var array
+     */
+    protected $_attribs;
+
+    /**
+     * Returns an avatar from gravatar's service.
+     *
+     * $options may include the following:
+     * - 'img_size' int height of img to return
+     * - 'default_img' string img to return if email adress has not found
+     * - 'rating' string rating parameter for avatar
+     * - 'secure' bool load from the SSL or Non-SSL location
+     *
+     * @see    http://pl.gravatar.com/site/implement/url
+     * @see    http://pl.gravatar.com/site/implement/url More information about gravatar's service.
+     * @param  string|null $email Email adress.
+     * @param  null|array $options Options
+     * @param  array $attribs Attributes for image tag (title, alt etc.)
+     * @return Zend_View_Helper_Gravatar
+     */
+    public function gravatar($email = "", $options = array(), $attribs = array())
+    {
+        $this->setEmail($email);
+        $this->setOptions($options);
+        $this->setAttribs($attribs);
+        return $this;
+    }
+
+    /**
+     * Configure state
+     * 
+     * @param  array $options 
+     * @return Zend_View_Helper_Gravatar
+     */
+    public function setOptions(array $options)
+    {
+        foreach ($options as $key => $value) {
+            $method = 'set' . str_replace(' ', '', ucwords(str_replace('_', ' ', $key)));
+            if (method_exists($this, $method)) {
+                $this->{$method}($value);
+            }
+        }
+        return $this;
+    }
+
+    /**
+     * Get img size
+     *
+     * @return int The img size
+     */
+    public function getImgSize()
+    {
+        return $this->_options['img_size'];
+    }
+
+    /**
+     * Set img size in pixels
+     *
+     * @param int $imgSize Size of img must be between 1 and 512
+     * @return Zend_View_Helper_Gravatar
+     */
+    public function setImgSize($imgSize)
+    {
+        $this->_options['img_size'] = (int) $imgSize;
+        return $this;
+    }
+
+    /**
+     * Get default img
+     *
+     * @return string
+     */
+    public function getDefaultImg()
+    {
+        return $this->_options['default_img'];
+    }
+
+    /**
+     * Set default img
+     *
+     * Can be either an absolute URL to an image, or one of the DEFAULT_* constants
+     *
+     * @param string $defaultImg
+     * @link http://pl.gravatar.com/site/implement/url More information about default image.
+     * @return Zend_View_Helper_Gravatar
+     */
+    public function setDefaultImg($defaultImg)
+    {
+        $this->_options['default_img'] = urlencode($defaultImg);
+        return $this;
+    }
+
+    /**
+     *  Set rating value
+     *
+     * Must be one of the RATING_* constants
+     *
+     * @param string $rating Value for rating. Allowed values are: g, px, r,x
+     * @link http://pl.gravatar.com/site/implement/url More information about rating.
+     * @throws Zend_View_Exception
+     */
+    public function setRating($rating)
+    {
+        switch ($rating) {
+            case self::RATING_G:
+            case self::RATING_PG: 
+            case self::RATING_R: 
+            case self::RATING_X:
+                $this->_options['rating'] = $rating;
+                break;
+            default:
+                require_once 'Zend/View/Exception.php';
+                throw new Zend_View_Exception(sprintf(
+                    'The rating value "%s" is not allowed',
+                    $rating
+                ));
+        }
+        return $this;
+    }
+
+    /**
+     * Get rating value
+     *
+     * @return string
+     */
+    public function getRating()
+    {
+        return $this->_options['rating'];
+    }
+
+    /**
+     * Set email adress
+     *
+     * @param string $email
+     * @return Zend_View_Helper_Gravatar
+     */
+    public function setEmail( $email )
+    {
+        $this->_email = $email;
+        return $this;
+    }
+
+    /**
+     * Get email adress
+     *
+     * @return string
+     */
+    public function getEmail()
+    {
+        return $this->_email;
+    }
+
+    /**
+     * Load from an SSL or No-SSL location?
+     *
+     * @param bool $flag
+     * @return Zend_View_Helper_Gravatar
+     */
+    public function setSecure($flag)
+    {
+        $this->_options['secure'] = ($flag === null) ? null : (bool) $flag;
+        return $this;  
+    }
+
+    /**
+     * Get an SSL or a No-SSL location
+     *
+     * @return bool
+     */
+    public function getSecure()
+    {
+        if ($this->_options['secure'] === null) {
+            return (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off');
+        }
+        return $this->_options['secure'];
+    }
+
+    /**
+     * Get attribs of image
+     *
+     * Warning!
+     * If you set src attrib, you get it, but this value will be overwritten in 
+     * protected method _setSrcAttribForImg(). And finally your get other src 
+     * value!
+     *
+     * @return array
+     */
+    public function getAttribs()
+    {
+        return $this->_attribs;
+    }
+
+    /**
+     * Set attribs for image tag
+     *
+     * Warning! You shouldn't set src attrib for image tag.
+     * This attrib is overwritten in protected method _setSrcAttribForImg().
+     * This method(_setSrcAttribForImg) is called in public method getImgTag().
+
+     * @param array $attribs
+     * @return Zend_View_Helper_Gravatar
+     */
+    public function setAttribs(array $attribs)
+    {
+        $this->_attribs = $attribs;
+        return $this;
+    }
+
+    /**
+     * Get URL to gravatar's service.
+     *
+     * @return string URL
+     */
+    protected function _getGravatarUrl()
+    {
+        return ($this->getSecure() === false) ? self::GRAVATAR_URL : self::GRAVATAR_URL_SECURE;
+    }
+
+    /**
+     * Get avatar url (including size, rating and default image oprions)
+     * 
+     * @return string
+     */
+    protected function _getAvatarUrl()
+    {
+        $src = $this->_getGravatarUrl()
+             . '/'
+             . md5($this->getEmail())
+             . '?s='
+             . $this->getImgSize()
+             . '&d='
+             . $this->getDefaultImg()
+             . '&r='
+             . $this->getRating();
+        return $src;
+    }
+
+    /**
+     * Set src attrib for image.
+     *
+     * You shouldn't set a own url value!
+     * It sets value, uses protected method _getAvatarUrl.
+     *
+     * If already exsist overwritten.
+     */
+    protected function _setSrcAttribForImg()
+    {
+        $attribs        = $this->getAttribs();
+        $attribs['src'] = $this->_getAvatarUrl();
+        $this->setAttribs($attribs);
+    }
+
+    /**
+     * Return valid image tag 
+     *
+     * @return string 
+     */
+    public function getImgTag()
+    {
+        $this->_setSrcAttribForImg();
+        $html = '<img'
+              . $this->_htmlAttribs($this->getAttribs())
+              . $this->getClosingBracket();
+
+        return $html;
+    }
+    
+    /**
+     * Return valid image tag
+     *
+     * @return string
+     */
+    public function  __toString()
+    {
+        return $this->getImgTag();
+
+    }
+}