moodle/blocks/edit_form.php

197 lines
8.0 KiB
PHP

<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Defines the base class form used by blocks/edit.php to edit block instance configuration.
*
* It works with the {@link block_edit_form} class, or rather the particular
* subclass defined by this block, to do the editing.
*
* @package moodlecore
* @copyright 2009 Tim Hunt
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once($CFG->libdir . '/formslib.php');
/**
* The base class form used by blocks/edit.php to edit block instance configuration.
*
* @copyright 2009 Tim Hunt
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class block_edit_form extends moodleform {
/**
* The block instance we are editing.
* @var block_base
*/
public $block;
/**
* The page we are editing this block in association with.
* @var moodle_page
*/
public $page;
function __construct($actionurl, $block, $page) {
global $CFG;
$this->block = $block;
$this->page = $page;
parent::moodleform($actionurl);
}
function definition() {
$mform =& $this->_form;
// First show fields specific to this type of block.
$this->specific_definition($mform);
// Then show the fields about where this block appears.
$mform->addElement('header', 'whereheader', get_string('wherethisblockappears', 'block'));
// If the current weight of the block is out-of-range, add that option in.
$blockweight = $this->block->instance->weight;
$weightoptions = array();
if ($blockweight < -block_manager::MAX_WEIGHT) {
$weightoptions[$blockweight] = $blockweight;
}
for ($i = -block_manager::MAX_WEIGHT; $i <= block_manager::MAX_WEIGHT; $i++) {
$weightoptions[$i] = $i;
}
if ($blockweight > block_manager::MAX_WEIGHT) {
$weightoptions[$blockweight] = $blockweight;
}
$first = reset($weightoptions);
$weightoptions[$first] = get_string('bracketfirst', 'block', $first);
$last = end($weightoptions);
$weightoptions[$last] = get_string('bracketlast', 'block', $last);
$regionoptions = $this->page->theme->get_all_block_regions();
$parentcontext = get_context_instance_by_id($this->block->instance->parentcontextid);
$mform->addElement('hidden', 'bui_parentcontextid', $parentcontext->id);
$contextoptions = array();
if ( ($parentcontext->contextlevel == CONTEXT_COURSE && $parentcontext->instanceid == SITEID) ||
($parentcontext->contextlevel == CONTEXT_SYSTEM)) { // Home page
$contextoptions[0] = get_string('showonfrontpageonly', 'block');
$contextoptions[1] = get_string('showonfrontpageandsubs', 'block');
$contextoptions[2] = get_string('showonentiresite', 'block');
} else {
$parentcontextname = print_context_name($parentcontext);
$contextoptions[0] = get_string('showoncontextonly', 'block', $parentcontextname);
$contextoptions[1] = get_string('showoncontextandsubs', 'block', $parentcontextname);
}
$mform->addElement('select', 'bui_contexts', get_string('contexts', 'block'), $contextoptions);
if ($this->page->pagetype == 'site-index') { // No need for pagetype list on home page
$pagetypelist = array('*');
} else {
$pagetypelist = matching_page_type_patterns($this->page->pagetype);
}
$pagetypeoptions = array();
foreach ($pagetypelist as $pagetype) { // Find human-readable names for the pagetypes
$pagetypeoptions[$pagetype] = $pagetype;
$pagetypestringname = 'page-'.str_replace('*', 'x',$pagetype); // Better names MDL-21375
$pagetypestring = get_string($pagetypestringname, 'pagetype');
if (substr($pagetypestring, 0, 1) != '[') {
$pagetypeoptions[$pagetype] .= ' ('.$pagetypestring.')';
}
}
$mform->addElement('select', 'bui_pagetypepattern', get_string('restrictpagetypes', 'block'), $pagetypeoptions);
if ($this->page->subpage) {
$subpageoptions = array(
'%@NULL@%' => get_string('anypagematchingtheabove', 'block'),
$this->page->subpage => get_string('thisspecificpage', 'block', $this->page->subpage),
);
$mform->addElement('select', 'bui_subpagepattern', get_string('subpages', 'block'), $subpageoptions);
}
$defaultregionoptions = $regionoptions;
$defaultregion = $this->block->instance->defaultregion;
if (!array_key_exists($defaultregion, $defaultregionoptions)) {
$defaultregionoptions[$defaultregion] = $defaultregion;
}
$mform->addElement('select', 'bui_defaultregion', get_string('defaultregion', 'block'), $defaultregionoptions);
$mform->addElement('select', 'bui_defaultweight', get_string('defaultweight', 'block'), $weightoptions);
// Where this block is positioned on this page.
$mform->addElement('header', 'whereheader', get_string('onthispage', 'block'));
$mform->addElement('selectyesno', 'bui_visible', get_string('visible', 'block'));
$blockregion = $this->block->instance->region;
if (!array_key_exists($blockregion, $regionoptions)) {
$regionoptions[$blockregion] = $blockregion;
}
$mform->addElement('select', 'bui_region', get_string('region', 'block'), $regionoptions);
$mform->addElement('select', 'bui_weight', get_string('weight', 'block'), $weightoptions);
$pagefields = array('bui_visible', 'bui_region', 'bui_weight');
if (!$this->block->user_can_edit()) {
$mform->hardFreezeAllVisibleExcept($pagefields);
}
if (!$this->page->user_can_edit_blocks()) {
$mform->hardFreeze($pagefields);
}
$this->add_action_buttons();
}
function set_data($defaults) {
// Prefix bui_ on all the core field names.
$blockfields = array('showinsubcontexts', 'pagetypepattern', 'subpagepattern', 'parentcontextid',
'defaultregion', 'defaultweight', 'visible', 'region', 'weight');
foreach ($blockfields as $field) {
$newname = 'bui_' . $field;
$defaults->$newname = $defaults->$field;
}
// Copy block config into config_ fields.
if (!empty($this->block->config)) {
foreach ($this->block->config as $field => $value) {
$configfield = 'config_' . $field;
$defaults->$configfield = $value;
}
}
// Munge ->subpagepattern becuase HTML selects don't play nicely with NULLs.
if (empty($defaults->bui_subpagepattern)) {
$defaults->bui_subpagepattern = '%@NULL@%';
}
$systemcontext = get_context_instance(CONTEXT_SYSTEM);
if ($defaults->parentcontextid == $systemcontext->id) {
$defaults->bui_contexts = 2; // System-wide and sticky
} else {
$defaults->bui_contexts = $defaults->bui_showinsubcontexts;
}
parent::set_data($defaults);
}
/**
* Override this to create any form fields specific to this type of block.
* @param object $mform the form being built.
*/
protected function specific_definition($mform) {
// By default, do nothing.
}
}