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plugins last modifications + events are triggered now from picture.php

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git-svn-id: http://piwigo.org/svn/trunk@1590 68402e56-0260-453c-a942-63ccdbb3a9ee
This commit is contained in:
rvelices 2006-11-01 05:54:35 +00:00
parent 525c9bc40a
commit bce8b9f680
14 changed files with 372 additions and 220 deletions
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125
include/functions_plugins.inc.php
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@ -35,17 +35,22 @@ string.
define('PHPWG_PLUGINS_PATH',PHPWG_ROOT_PATH.'plugins/');
define('EVENT_HANDLER_PRIORITY_NEUTRAL', 50);
/* Register a event handler.
* @param string $event the name of the event to listen to
* @param mixed $func the function that will handle the event
* @param int $priority optional priority (greater priority will
* be executed at last)
*/
function add_event_handler($event, $func, $priority=50, $accepted_args=1)
function add_event_handler($event, $func,
$priority=EVENT_HANDLER_PRIORITY_NEUTRAL, $accepted_args=1)
{
global $pwg_event_handlers;
if ( isset($pwg_event_handlers[$event]["$priority"]) )
if ( isset($pwg_event_handlers[$event][$priority]) )
{
foreach($pwg_event_handlers[$event]["$priority"] as $handler)
foreach($pwg_event_handlers[$event][$priority] as $handler)
{
if ( $handler['function'] == $func )
{
@ -54,18 +59,50 @@ function add_event_handler($event, $func, $priority=50, $accepted_args=1)
}
}
trigger_event('add_event_handler',
array('event'=>$event, 'function'=>$func)
);
$pwg_event_handlers[$event]["$priority"][] =
$pwg_event_handlers[$event][$priority][] =
array(
'function'=>$func,
'accepted_args'=>$accepted_args);
ksort( $pwg_event_handlers[$event] );
return true;
}
/* Register a event handler.
* @param string $event the name of the event to listen to
* @param mixed $func the function that needs removal
* @param int $priority optional priority (greater priority will
* be executed at last)
*/
function remove_event_handler($event, $func,
$priority=EVENT_HANDLER_PRIORITY_NEUTRAL)
{
global $pwg_event_handlers;
if (!isset( $pwg_event_handlers[$event][$priority] ) )
{
return false;
}
for ($i=0; $i<count($pwg_event_handlers[$event][$priority]); $i++)
{
if ($pwg_event_handlers[$event][$priority][$i]['function']==$func)
{
unset($pwg_event_handlers[$event][$priority][$i]);
$pwg_event_handlers[$event][$priority] =
array_values($pwg_event_handlers[$event][$priority]);
if ( empty($pwg_event_handlers[$event][$priority]) )
{
unset( $pwg_event_handlers[$event][$priority] );
if (empty( $pwg_event_handlers[$event] ) )
{
unset( $pwg_event_handlers[$event] );
}
}
return true;
}
}
return false;
}
/* Triggers an event and calls all registered event handlers
* @param string $event name of the event
@ -74,19 +111,15 @@ function add_event_handler($event, $func, $priority=50, $accepted_args=1)
function trigger_event($event, $data=null)
{
global $pwg_event_handlers;
if ($event!='pre_trigger_event' and $event!='post_trigger_event')
{// special case
trigger_event('pre_trigger_event',
// just for debugging
trigger_action('pre_trigger_event',
array('event'=>$event, 'data'=>$data) );
if ( !isset($pwg_event_handlers[$event]) )
{
trigger_event('post_trigger_event',
array('event'=>$event, 'data'=>$data) );
}
}
if ( !isset($pwg_event_handlers[$event]) )
{
trigger_action('post_trigger_event',
array('event'=>$event, 'data'=>$data) );
return $data;
}
$args = array_slice(func_get_args(), 2);
@ -114,17 +147,53 @@ function trigger_event($event, $data=null)
}
}
}
if ($event!='pre_trigger_event' and $event!='post_trigger_event')
{
trigger_event('post_trigger_event',
trigger_action('post_trigger_event',
array('event'=>$event, 'data'=>$data) );
}
return $data;
}
function trigger_action($event, $data=null)
{
global $pwg_event_handlers;
if ($event!='pre_trigger_event'
and $event!='post_trigger_event'
and $event!='trigger_action')
{// special case for debugging - avoid recursive calls
trigger_action('trigger_action',
array('event'=>$event, 'data'=>$data) );
}
if ( !isset($pwg_event_handlers[$event]) )
{
return;
}
$args = array_slice(func_get_args(), 2);
foreach ($pwg_event_handlers[$event] as $priority => $handlers)
{
if ( !is_null($handlers) )
{
foreach($handlers as $handler)
{
$all_args = array_merge( array($data), $args);
$function_name = $handler['function'];
$accepted_args = $handler['accepted_args'];
if ( $accepted_args == 1 )
$the_args = array($data);
elseif ( $accepted_args > 1 )
$the_args = array_slice($all_args, 0, $accepted_args);
elseif ( $accepted_args == 0 )
$the_args = NULL;
else
$the_args = $all_args;
call_user_func_array($function_name, $the_args);
}
}
}
}
/* Returns an array of plugins defined in the database
@ -173,8 +242,12 @@ function load_plugins()
$plugins = get_db_plugins('active');
foreach( $plugins as $plugin)
{
@include_once( PHPWG_PLUGINS_PATH.$plugin['id'].'/index.php' );
$file_name = PHPWG_PLUGINS_PATH.$plugin['id'].'/main.inc.php';
if ( file_exists($file_name) )
{
include_once( $file_name );
}
}
trigger_event('plugins_loaded');
trigger_action('plugins_loaded');
}
?>