"Sidebar",
"version" => "0.3.2",
"author" => "Starbeamrainbowlabs",
"description" => "Adds a sidebar to the left hand side of every page. Add '\$settings->sidebar_show = true;' to your configuration, or append '&sidebar=yes' to the url to enable. Adding to the url sets a cookie to remember your setting.",
"id" => "extra-sidebar",
"code" => function() {
global $settings;
$show_sidebar = false;
// Show the sidebar if it is enabled in the settings
if(isset($settings->sidebar_show) && $settings->sidebar_show === true)
$show_sidebar = true;
// Also show and persist the sidebar if the special GET parameter
// sidebar is seet
if(!$show_sidebar && isset($_GET["sidebar"]))
{
$show_sidebar = true;
// Set a cookie to persist the display of the sidebar
send_cookie("sidebar_show", "true", time() + (60 * 60 * 24 * 30));
}
// Show the sidebar if the cookie is set
if(!$show_sidebar && isset($_COOKIE["sidebar_show"]))
$show_sidebar = true;
// Delete the cookie and hide the sidebar if the special GET paramter
// nosidebar is set
if(isset($_GET["nosidebar"]))
{
$show_sidebar = false;
unset($_COOKIE["sidebar_show"]);
send_cookie("sidebar_show", null, time() - 3600);
}
page_renderer::register_part_preprocessor(function(&$parts) use ($show_sidebar) {
global $settings, $pageindex, $env;
// Don't render a sidebar if the user is logging in and a login is
// required in order to view pages.
if($settings->require_login_view && in_array($env->action, [ "login", "checklogin" ]))
return false;
if($show_sidebar && !isset($_GET["printable"]))
{
// Show the sidebar
$exec_start = microtime(true);
// Sort the pageindex
$sorted_pageindex = get_object_vars($pageindex);
$sorter = new Collator("");
uksort($sorted_pageindex, function($a, $b) use($sorter) : int {
return $sorter->compare($a, $b);
});
$sidebar_contents = "";
$sidebar_contents .= render_sidebar($sorted_pageindex);
$parts["{body}"] = "
" . $parts["{body}"] . "
";
}
});
add_help_section("50-sidebar", "Sidebar", "$settings->sitename has an optional sidebar which displays a list of all the current pages (but not subpages) that it is currently hosting. It may or may not be enabled.
If it isn't enabled, it can be enabled for your current browser only by appending sidebar=yes to the current page's query string.
If it is enabled, it can be disabled for your current browser only by appending nosidebar to the current page's query string.
");
}
]);
/**
* Renders the sidebar for a given pageindex.
* @package extra-sidebar
* @param array $pageindex The pageindex to render the sidebar for
* @param string $root_pagename The pagename that should be considered the root of the rendering. You don't usually need to use this, it is used by the algorithm itself since it is recursive.
* @return string A HTML rendering of the sidebar for the given pageindex.
*/
function render_sidebar($pageindex, $root_pagename = "")
{
global $settings;
$result = " $details)
{
// If we have a valid root pagename, and it isn't present at the
// beginning of the current pagename, skip it
if($root_pagename !== "" && strpos($pagename, $root_pagename) !== 0)
continue;
// The current page is the same as the root page, skip it
if($pagename == $root_pagename)
continue;
// If the page already appears on the sidebar, skip it
if(preg_match("/>$pagename<\a>/m", $result) === 1)
continue;
// If the part of the current pagename that comes after the root
// pagename has a slash in it, skip it as it is a sub-sub page.
if(strpos(substr($pagename, strlen($root_pagename)), "/") !== false)
continue;
$result .= "$pagename\n";
$result .= render_sidebar($pageindex, $pagename);
$result .= "\n";
}
$result .= "\n";
return $result == "\n" ? "" : $result;
}
?>