mirror of
https://github.com/moodle/moodle.git
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100 lines
3.6 KiB
PHP
100 lines
3.6 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Provide interface for blocks AJAX actions
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*
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* @copyright 2011 Lancaster University Network Services Limited
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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* @package core
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*/
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define('AJAX_SCRIPT', true);
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require_once(dirname(__FILE__) . '/../../config.php');
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// Initialise ALL common incoming parameters here, up front.
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$courseid = required_param('courseid', PARAM_INT);
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$pagelayout = required_param('pagelayout', PARAM_ALPHAEXT);
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$pagetype = required_param('pagetype', PARAM_ALPHAEXT);
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$cmid = optional_param('cmid', null, PARAM_INT);
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$action = optional_param('action', '', PARAM_ALPHA);
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// Params for blocks-move actions
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$bui_moveid = optional_param('bui_moveid', 0, PARAM_INT);
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$bui_newregion = optional_param('bui_newregion', '', PARAM_ALPHAEXT);
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$bui_beforeid = optional_param('bui_beforeid', 0, PARAM_INT);
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// Setting pagetype and URL
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$PAGE->set_pagetype($pagetype);
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$PAGE->set_url('/lib/ajax/blocks.php', array('courseid' => $courseid, 'pagelayout' => $pagelayout, 'pagetype' => $pagetype));
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// Verifying login and session
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$cm = null;
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if (!is_null($cmid)) {
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$cm = get_coursemodule_from_id(null, $cmid, $courseid, false, MUST_EXIST);
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}
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require_login($courseid, false, $cm);
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require_sesskey();
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// Setting layout to replicate blocks configuration for the page we edit
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$PAGE->set_pagelayout($pagelayout);
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echo $OUTPUT->header(); // send headers
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switch ($action) {
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case 'move':
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// Loading blocks and instances for the region
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$PAGE->blocks->load_blocks();
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$instances = $PAGE->blocks->get_blocks_for_region($bui_newregion);
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$bui_newweight = null;
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if ($bui_beforeid == 0) {
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// Moving to very bottom
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$last = end($instances);
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$bui_newweight = $last->instance->weight + 1;
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} else {
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// Moving somewhere
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$lastweight = 0;
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$lastblock = 0;
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$first = reset($instances);
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if ($first) {
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$lastweight = $first->instance->weight - 2;
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}
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foreach ($instances as $instance) {
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if ($instance->instance->id == $bui_beforeid) {
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// Location found, just calculate weight like in
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// block_manager->create_block_contents() and quit the loop.
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if ($lastblock == $bui_moveid) {
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// same block, same place - nothing to move
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break;
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}
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$bui_newweight = ($lastweight + $instance->instance->weight) / 2;
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break;
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}
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$lastweight = $instance->instance->weight;
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$lastblock = $instance->instance->id;
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}
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}
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// Move block if we need
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if (isset($bui_newweight)) {
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// Nasty hack
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$_POST['bui_newweight'] = $bui_newweight;
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$PAGE->blocks->process_url_move();
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}
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break;
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}
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