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namespace hji\ResponsiveIDX\utils;
/* Source : http://ottopress.com/2012/themeplugin-dependencies/
Simple class to let themes add dependencies on plugins in ways they might find useful
Example usage:
$test = new Theme_Plugin_Dependency( 'simple-facebook-connect', 'http://ottopress.com/wordpress-plugins/simple-facebook-connect/' );
if ( $test->check_active() )
echo 'SFC is installed and activated!';
else if ( $test->check() )
echo 'SFC is installed, but not activated. <a href="'.$test->activate_link().'">Click here to activate the plugin.</a>';
else if ( $install_link = $test->install_link() )
echo 'SFC is not installed. <a href="'.$install_link.'">Click here to install the plugin.</a>';
else
echo 'SFC is not installed and could not be found in the Plugin Directory. Please install this plugin manually.';
*/
class PluginDependency
{
// input information from the theme
// Plugin slug - most of the time part of the folder name
var $slug;
// Plugin file name - most of the time doesn't change
var $fileName;
// installed plugins and uris of them
private $plugins; // holds the list of plugins and their info
private $uris; // holds just the URIs for quick and easy searching
private $file; // full path to the file
// both slug and PluginURI are required for checking things
function __construct($slug, $fileName)
{
$this->slug = $slug;
$this->fileName = $fileName;
if (empty($this->plugins))
{
$this->plugins = get_plugins();
}
if (empty($this->uris))
{
$this->uris = wp_list_pluck($this->plugins, 'PluginURI');
}
}
/**
* @codeCoverageIgnore
* return true if installed, false if not
*/
function check()
{
_deprecated_function(__FUNCTION__, '3.0.6', 'PluginDependency::isInstalled');
return $this->isInstalled();
}
/**
* @codeCoverageIgnore
* return true if installed and activated, false if not
*/
function check_active()
{
_deprecated_function(__FUNCTION__, '3.0.6', 'PluginDependency::isActive');
return $this->isActive();
}
/**
* @codeCoverageIgnore
* gives a link to activate the plugin
*/
function activate_link()
{
_deprecated_function(__FUNCTION__, '3.0.6', 'PluginDependency::getActivateLink');
return $this->getActivateLink();
}
/**
* @codeCoverageIgnore
* return a nonced installation link for the plugin. checks wordpress.org to make sure it's there first.
*/
function install_link()
{
_deprecated_function(__FUNCTION__, '3.0.6', 'PluginDependency::getInstallLink');
return $this->getInstallLink();
}
/**
* return array key of plugin if installed, false if not, private because this isn't needed for themes, generally
*/
private function get_plugin_file()
{
if (!$this->file)
{
foreach ($this->uris as $k => $v)
{
if (stristr($k, $this->slug) && stristr($k, '/' . $this->fileName))
{
$this->file = $k;
break;
}
}
}
return $this->file;
}
/**
* Returns path to the plugin file relative to plugins directory
*
* @return int|string
*/
function getFile()
{
return $this->get_plugin_file();
}
/**
* Determines if plugin is active
*
* @return bool
*/
function isActive()
{
if ($this->getFile())
{
include_once( ABSPATH . 'wp-admin/includes/plugin.php' );
return is_plugin_active($this->getFile());
}
return false;
}
/**
* Determines if plugin is installed
*
* @return bool
*/
function isInstalled()
{
return ($this->getFile()) ? true : false;
}
/**
* Returns plugin installation link
*
* @return bool|string
*/
function getInstallLink()
{
include_once ABSPATH . 'wp-admin/includes/plugin-install.php';
$info = plugins_api('plugin_information', array('slug' => $this->slug));
if (is_wp_error($info))
{
return false;
} // plugin not available from wordpress.org
return wp_nonce_url(self_admin_url('update.php?action=install-plugin&plugin=' . $this->slug), 'install-plugin_' . $this->slug);
}
/**
* Returns plugin activation link
*
* @return bool|string
*/
function getActivateLink()
{
$plugin_file = $this->getFile();
if ($plugin_file) return wp_nonce_url(self_admin_url('plugins.php?action=activate&plugin=' . $plugin_file), 'activate-plugin_' . $plugin_file);
return false;
}
}