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 $pathtosection;
  25     var $visiblepathtosection;
  26
  27     // hack alert!
  28     // this function works around the inability to store the section name
  29     // in default block, maybe we should "improve" the blocks a bit?
  30     function init_extra($section) {
  31         global $CFG;
  32
  33         if($this->full_init_done) {
  34             return;
  35         }
  36
  37         $adminroot = admin_get_root();
  38
  39         // fetch the path parameter
  40         $this->section = $section;
  41
  42         $this->visiblepathtosection = array();
  43
  44         // this part is (potentially) processor-intensive... there's gotta be a better way
  45         // of handling this
  46         if ($this->pathtosection = $adminroot->path($this->section)) {
  47             foreach($this->pathtosection as $element) {
  48                 if ($pointer = $adminroot->locate($element)) {
  49                     array_push($this->visiblepathtosection, $pointer->visiblename);
  50                 }
  51             }
  52         }
  53
  54         // all done
  55         $this->full_init_done = true;
  56     }
  57
  58     function blocks_get_default() {
  59         return 'admin_tree,admin_bookmarks';
  60     }
  61
  62     // seems reasonable that the only people that can edit blocks on the admin pages
  63     // are the admins... but maybe we want a role for this?
  64     function user_allowed_editing() {
  65         return has_capability('moodle/site:manageblocks', get_context_instance(CONTEXT_SYSTEM, SITEID));
  66     }
  67
  68     // has to be fixed. i know there's a "proper" way to do this
  69     function user_is_editing() {
  70         global $USER;
  71         return $USER->adminediting;
  72     }
  73
  74     function url_get_path() {
  75         global $CFG;
  76
  77         $adminroot = admin_get_root();
  78
  79         $root = $adminroot->locate($this->section);
  80         if (is_a($root, 'admin_externalpage')) {
  81             return $root->url;
  82         } else {
  83             return ($CFG->wwwroot . '/' . $CFG->admin . '/settings.php');
  84         }
  85     }
  86
  87     function url_get_parameters() {  // only handles parameters relevant to the admin pagetype
  88         return array('section' => (isset($this->section) ? $this->section : ''));
  89     }
  90
  91     function blocks_get_positions() {
  92         return array(BLOCK_POS_LEFT, BLOCK_POS_RIGHT);
  93     }
  94
  95     function blocks_default_position() {
  96         return BLOCK_POS_LEFT;
  97     }
  98
  99     function blocks_move_position(&$instance, $move) {
 100         if($instance->position == BLOCK_POS_LEFT && $move == BLOCK_MOVE_RIGHT) {
 101             return BLOCK_POS_RIGHT;
 102         } else if ($instance->position == BLOCK_POS_RIGHT && $move == BLOCK_MOVE_LEFT) {
 103             return BLOCK_POS_LEFT;
 104         }
 105         return $instance->position;
 106     }
 107
 108     // does anything need to be done here?
 109     function init_quick($data) {
 110         parent::init_quick($data);
 111     }
 112
 113     function print_header($section = '') {
 114         global $USER, $CFG, $SITE;
 115
 116         $this->init_full($section); // we're trusting that init_full() has already been called by now; it should have.
 117                                     // if not, print_header() has to be called with a $section parameter
 118
 119         // The search page currently doesn't handle block editing
 120         if ($this->section != 'search' and $this->user_allowed_editing()) {
 121             $buttons = '<div><form '.$CFG->frametarget.' method="get" action="' . $this->url_get_path() . '">'.
 122                        '<div><input type="hidden" name="adminedit" value="'.($this->user_is_editing()?'off':'on').'" />'.
 123                        '<input type="hidden" name="section" value="'.$this->section.'" />'.
 124                        '<input type="submit" value="'.get_string($this->user_is_editing()?'blockseditoff':'blocksediton').'" /></div></form></div>';
 125         } else {
 126             $buttons = '&nbsp;';
 127         }
 128
 129         print_header("$SITE->shortname: " . implode(": ",$this->visiblepathtosection), $SITE->fullname,
 130                        implode(" -> ",$this->visiblepathtosection),'', '', true, $buttons, '');
 131     }
 132
 133     function get_type() {
 134         return PAGE_ADMIN;
 135     }
 136 }
 137
 138 ?>