Cannot add inline JS code to regions via hook_page_alter()

Could you give me an example, please? $closure does not only became $page_bottom - the logics also changed heavily. I do not have a form.

Awful, but seems to work and defines *twice* the scope with $page['footer'] and 'scope' => 'footer'.

function googleanalytics_page_alter(&$page) {
  ...

    // Add line code to scope.
    $page['footer']['googleanalytics']['#attached']['js'] = array(
      $script => array(
        'type' => 'inline',
        'scope' => 'footer',
      ),
    );
}

And this is what I need much more - but it doesn't work at all:

function googleanalytics_page_alter(&$page) {
  ...

    // Add line code to scope.
    $page['page_top']['googleanalytics']['#attached']['js'] = array(
      $script => array(
        'type' => 'inline',
        'scope' => 'page_top',
      ),
    );
}

Adding something to header this way doesn't work, too. Nevertheless the $page['header'] array looks 100% same like $page['footer']

function googleanalytics_page_alter(&$page) {
  ...

    // Add line code to scope.
    $page['header']['googleanalytics']['#attached']['js'] = array(
      $script => array(
        'type' => 'inline',
        'scope' => 'header',
      ),
    );
}

but this works

    $page['page_top']['googleanalytics']['#attached']['js'] = array(
      $script => array(
        'type' => 'inline',
        'scope' => 'header',
      ),
    );

    $page['page_bottom']['googleanalytics']['#attached']['js'] = array(
      $script => array(
        'type' => 'inline',
        'scope' => 'header',
      ),
    );

works... this is not really a clean API. Why the heck should I add something to $page['page_bottom'] with 'scope' => 'header'. This is such illogical! And I'm totally unable to add the JS code to 'page_top', but documented that I'm able to do apply JS to custom regions and not only to header and footer scope.

@Damien: This issue was opened for the reason that I wondered that drupal_add_js is not working inside hook_page_alter(). Ok - Gabor explained this is not the way it was designed. OK - I tried myself to understand the hard way as there seems not so much documenation yet and understanding is not that easy! I'm sorry that I have not followed D7 development for a very few months. We could change this into a support request until we figured out if there are bugs or not... This case is not a duplicate of the other.

Additionally I'm sorry to say you may theoretically be correct, but then I guess I've found a few bugs... see below:

This does NOT add the inline code to the scope footer. Now - is this a bug or is this broken by design?

    $page['#attached']['js'] = array(
      'alert("Hello!");' => array(
        'type' => 'inline',
        'scope' => 'footer',
      ),
    );

Attaching JS inline code to scope 'header' and 'footer' in the regions and scopes works if they use <?php print render($page[region]) ?> in page.tpl.php. Something seems to be different if it comes to <?php print $page_top ?> if they are inside html.tpl.php as this variables do not require to be surrounded by render() to attach the JS to the appropiate scope. But using $page['head']['googleanalytics']['#attached']['js'] is still not working for me in $head - with and without render() - there is nothing attached. If this is not confusing I do not know... don't get me wrong - I may not understand the deep insides as I'm only analyzing...

Overall I cannot say if all themes MUST use render() around all variables in page.tpl.php. If only one theme developer missed this, a module is not able to attach JS code. In past we only had variables and the theme upgrade page still does not tell developers to use render() in page.tpl.php. In many places it's stated I should use the old fashioned "variables", but they are not working anymore. It took me hours to figure out why my theme is not working and I only got the idea from Garland code.

@Gabor: You said in #1 hook_page_alter() dictates you add your stuff directly to the $page array. But why the heck is drupal_add_js working with "files" and "settings", but not inline JS? Only try the latest GA dev.

@effulgentsia: Can you say where this bug has been fixed? In my testing it was not possible to use drupal_add_js() inside hook_page_alter() and now it should work.