From Aikiframework wiki

Actions are ways to intercept events and do some act.

1) In aiki code you must put

$aiki->plugins->do_action( ACTION, VAR);

action is literal (unique for each action)
var is php variable (by reference). No constant is permitted.

Examples:

$aiki->plugins->do_action("output_body_begin", $bodybegin);
$aiki->plugins->do_action("output_head", $header);

2) Document, please, new actions on this page:

3) Recommendations

Keep a clear and consistent names for action. For example all output action begins with "output".
we can add so many "action points" that we need. Wordpress, for example have this: http://codex.wordpress.org/Plugin_API/Action_Reference.

Output Actions

Rule

A action named like element (favicon,body,head) is called with the entire element as parameters. A action ending with "begin" or "end" is called only with the starting o ending tag of elements. Examples

   output favicon : parameter <link rel="icon"...
   output_head_end:  parameter </head>
   output_head:  parameter the entire <head>...</head>

output_begin

Action fired at the very very beginning of the document (before doctype tag). Plugin receives a empty string.

output_head_begin

Action triggered after the setting of the <head> tag. Use it for inserting information at the starting of head tag.

output_doctype

Action fired after doctype and html tag is set.

output_meta

Is fired when aiki generated their meta tag (only encoding and generator). Use it for adding meta (dublin core for example, SEO metas)

output_title

Is called when aiki generated the title tag. The plugin receives the complete tag. Use it for changing the title.

output_favicon

Called when aiki sets favicon (link rel="icon" in html head). You can override this to set a new favicon.

output_head_end

Action triggered after the setting of the </head> tag. Use is for inserting information at the ending of head tag. Note that this action is fired before output_head who need the entire element.

output_head

Is activated after aiki generated the head tag. The plugin receives the complete head. Use it, when you need process the entire head.

output_body_begin

It fired when aiki write the starting body tag. The plugins receives only "<body>". Use it when you want customize body tag adding ids, or class, or want add a initial html element.

output_body_end

it called when aiki write the ending body tag. The plugins receives pnly "</body>". Use it for writing a special footer, o adding final javascrip.

output_body

Action triggered when body element is complete (after output_body_end). Use it, when you want process the entire body.

output_custom

When page is rendered using custom layout (widget_custom_output) or without headers (noheaders) the only action to process content are output_begin, output_custom and output_end

output_end

Called when output has ended. Receive a empty string because, output has no tag.

Actions