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<?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/>.
/**
* This file contains classes used to manage the navigation structures in Moodle
* and was introduced as part of the changes occuring in Moodle 2.0
*
* @since 2.0
* @package blocks
* @copyright 2009 Sam Hemelryk
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
/**
* The settings navigation tree block class
*
* Used to produce the settings navigation block new to Moodle 2.0
*
* @package blocks
* @copyright 2009 Sam Hemelryk
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class block_settings extends block_base {
/** @var string */
public static $navcount;
public $blockname = null;
/** @var bool */
protected $contentgenerated = false;
/** @var bool|null */
protected $docked = null;
/**
* Set the initial properties for the block
*/
function init() {
$this->blockname = get_class($this);
$this->title = get_string('pluginname', $this->blockname);
}
/**
* All multiple instances of this block
* @return bool Returns true
*/
function instance_allow_multiple() {
return false;
}
/**
* The settings block cannot be hidden by default as it is integral to
* the navigation of Moodle.
*
* @return false
*/
function instance_can_be_hidden() {
return false;
}
/**
* Set the applicable formats for this block to all
* @return array
*/
function applicable_formats() {
return array('all' => true);
}
/**
* Allow the user to configure a block instance
* @return bool Returns true
*/
function instance_allow_config() {
return true;
}
function instance_can_be_docked() {
return (parent::instance_can_be_docked() && (empty($this->config->enabledock) || $this->config->enabledock=='yes'));
}
function get_required_javascript() {
global $CFG;
$arguments = array('id'=>$this->instance->id, 'instance'=>$this->instance->id, 'candock'=>$this->instance_can_be_docked());
$this->page->requires->yui_module(array('core_dock', 'moodle-block_navigation-navigation'), 'M.block_navigation.init_add_tree', array($arguments));
user_preference_allow_ajax_update('docked_block_instance_'.$this->instance->id, PARAM_INT);
}
/**
* Gets the content for this block by grabbing it from $this->page
*/
function get_content() {
global $CFG, $OUTPUT;
// First check if we have already generated, don't waste cycles
if ($this->contentgenerated === true) {
return true;
}
// JS for navigation moved to the standard theme, the code will probably have to depend on the actual page structure
// $this->page->requires->js('/lib/javascript-navigation.js');
block_settings::$navcount++;
// Check if this block has been docked
if ($this->docked === null) {
$this->docked = get_user_preferences('nav_in_tab_panel_settingsnav'.block_settings::$navcount, 0);
}
// Check if there is a param to change the docked state
if ($this->docked && optional_param('undock', null, PARAM_INT)==$this->instance->id) {
unset_user_preference('nav_in_tab_panel_settingsnav'.block_settings::$navcount, 0);
$url = $this->page->url;
$url->remove_params(array('undock'));
redirect($url);
} else if (!$this->docked && optional_param('dock', null, PARAM_INT)==$this->instance->id) {
set_user_preferences(array('nav_in_tab_panel_settingsnav'.block_settings::$navcount=>1));
$url = $this->page->url;
$url->remove_params(array('dock'));
redirect($url);
}
$renderer = $this->page->get_renderer('block_settings');
$this->content->text = $renderer->settings_tree($this->page->settingsnav);
// only do search if you have moodle/site:config
if (!empty($this->content->text)) {
if (has_capability('moodle/site:config',get_context_instance(CONTEXT_SYSTEM)) ) {
$this->content->footer = $renderer->search_form(new moodle_url("$CFG->wwwroot/$CFG->admin/search.php"), optional_param('query', '', PARAM_RAW));
} else {
$this->content->footer = '';
}
if (!empty($this->config->enabledock) && $this->config->enabledock == 'yes') {
user_preference_allow_ajax_update('nav_in_tab_panel_settingsnav'.block_settings::$navcount, PARAM_INT);
}
}
$this->contentgenerated = true;
return true;
}
}
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