function overlay_overlay_child_initialize

Implements hook_overlay_child_initialize().

File

modules/overlay/overlay.module, line 699

Code

function overlay_overlay_child_initialize() {
    // Check if the parent window needs to refresh any page regions on this page
    // request.
    overlay_trigger_refresh();
    // If this is a POST request, or a GET request with a token parameter, we
    // have an indication that something in the supplemental regions of the
    // overlay might change during the current page request. We therefore store
    // the initial rendered content of those regions here, so that we can compare
    // it to the same content rendered in overlay_exit(), at the end of the page
    // request. This allows us to check if anything actually did change, and, if
    // so, trigger an immediate Ajax refresh of the parent window.
    if (!empty($_POST) || isset($_GET['token'])) {
        foreach (overlay_supplemental_regions() as $region) {
            overlay_store_rendered_content($region, overlay_render_region($region));
        }
        // In addition, notify the parent window that when the overlay closes,
        // the entire parent window should be refreshed.
        overlay_request_page_refresh();
    }
    // Indicate that when the main page rendering occurs later in the page
    // request, only the regions that appear within the overlay should be
    // rendered.
    overlay_set_regions_to_render(overlay_regions());
}