admin/pagelib.php

   1 <?php // $Id$
   2
   3 require_once($CFG->libdir.'/pagelib.php');
   4
   5 define('PAGE_ADMIN', 'admin');
   6
   7 // Bounds for block widths
   8 // more flexible for theme designers taken from theme config.php
   9 $lmin = (empty($THEME->block_l_min_width)) ? 0 :   $THEME->block_l_min_width;
  10 $lmax = (empty($THEME->block_l_max_width)) ? 210 : $THEME->block_l_max_width;
  11 $rmin = (empty($THEME->block_r_min_width)) ? 0 :   $THEME->block_r_min_width;
  12 $rmax = (empty($THEME->block_r_max_width)) ? 210 : $THEME->block_r_max_width;
  13
  14 define('BLOCK_L_MIN_WIDTH', $lmin);
  15 define('BLOCK_L_MAX_WIDTH', $lmax);
  16 define('BLOCK_R_MIN_WIDTH', $rmin);
  17 define('BLOCK_R_MAX_WIDTH', $rmax);
  18
  19 page_map_class(PAGE_ADMIN, 'page_admin');
  20
  21 class page_admin extends page_base {
  22
  23     var $section;
  24     var $visiblepathtosection;
  25
  26     // hack alert!
  27     // this function works around the inability to store the section name
  28     // in default block, maybe we should "improve" the blocks a bit?
  29     function init_extra($section) {
  30         global $CFG;
  31
  32         if($this->full_init_done) {
  33             return;
  34         }
  35
  36         $adminroot =& admin_get_root(false, false); //settings not required - only pages
  37
  38         // fetch the path parameter
  39         $this->section = $section;
  40         $current =& $adminroot->locate($section, true);
  41         $this->visiblepathtosection = array_reverse($current->visiblepath);
  42
  43         // all done
  44         $this->full_init_done = true;
  45     }
  46
  47     function blocks_get_default() {
  48         return 'admin_tree,admin_bookmarks';
  49     }
  50
  51     // seems reasonable that the only people that can edit blocks on the admin pages
  52     // are the admins... but maybe we want a role for this?
  53     function user_allowed_editing() {
  54         return has_capability('moodle/site:manageblocks', get_context_instance(CONTEXT_SYSTEM));
  55     }
  56
  57     // has to be fixed. i know there's a "proper" way to do this
  58     function user_is_editing() {
  59         global $USER;
  60         return $USER->adminediting;
  61     }
  62
  63     function url_get_path() {
  64         global $CFG;
  65
  66         $adminroot =& admin_get_root(false, false); //settings not required - only pages
  67
  68         $root =& $adminroot->locate($this->section);
  69         if (is_a($root, 'admin_externalpage')) {
  70             return $root->url;
  71         } else {
  72             return ($CFG->wwwroot . '/' . $CFG->admin . '/settings.php');
  73         }
  74     }
  75
  76     function url_get_parameters() {  // only handles parameters relevant to the admin pagetype
  77         return array('section' => (isset($this->section) ? $this->section : ''));
  78     }
  79
  80     function blocks_get_positions() {
  81         return array(BLOCK_POS_LEFT, BLOCK_POS_RIGHT);
  82     }
  83
  84     function blocks_default_position() {
  85         return BLOCK_POS_LEFT;
  86     }
  87
  88     function blocks_move_position(&$instance, $move) {
  89         if($instance->position == BLOCK_POS_LEFT && $move == BLOCK_MOVE_RIGHT) {
  90             return BLOCK_POS_RIGHT;
  91         } else if ($instance->position == BLOCK_POS_RIGHT && $move == BLOCK_MOVE_LEFT) {
  92             return BLOCK_POS_LEFT;
  93         }
  94         return $instance->position;
  95     }
  96
  97     // does anything need to be done here?
  98     function init_quick($data) {
  99         parent::init_quick($data);
 100     }
 101
 102     function print_header($section = '', $focus='') {
 103         global $USER, $CFG, $SITE;
 104
 105         $this->init_full($section); // we're trusting that init_full() has already been called by now; it should have.
 106                                     // if not, print_header() has to be called with a $section parameter
 107
 108         // The search page currently doesn't handle block editing
 109         if ($this->section != 'search' and $this->user_allowed_editing()) {
 110             $buttons = '<div><form '.$CFG->frametarget.' method="get" action="' . $this->url_get_path() . '">'.
 111                 '<div><input type="hidden" name="adminedit" value="'.($this->user_is_editing()?'off':'on').'" />'.
 112                 '<input type="hidden" name="section" value="'.$this->section.'" />'.
 113                 '<input type="submit" value="'.get_string($this->user_is_editing()?'blockseditoff':'blocksediton').'" /></div></form></div>';
 114         } else {
 115             $buttons = '&nbsp;';
 116         }
 117
 118         $navlinks = array();
 119         foreach ($this->visiblepathtosection as $element) {
 120             $navlinks[] = array('name' => $element, 'link' => null, 'type' => 'misc');
 121         }
 122         $navigation = build_navigation($navlinks);
 123
 124         print_header("$SITE->shortname: " . implode(": ",$this->visiblepathtosection), $SITE->fullname, $navigation, $focus, '', true, $buttons, '');
 125     }
 126
 127     function get_type() {
 128         return PAGE_ADMIN;
 129     }
 130 }
 131
 132 ?>