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// 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/>.
/**
* Drag and drop reorder via HTML5.
*
* @module tool_lp/dragdrop-reorder
* @package tool_lp
* @copyright 2015 Damyon Wiese <damyon@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
define(['core/str', 'core/yui'], function(str, Y) {
// Private variables and functions.
/**
* Store the current instance of the core drag drop.
*
* @property dragDropInstance M.tool_lp.dragdrop_reorder
*/
var dragDropInstance = null;
/**
* Translate the drophit event from YUI
* into simple drag and drop nodes.
* @param {Y.Event} e The yui drop event.
*/
var proxyCallback = function(e) {
var dragNode = e.drag.get('node');
var dropNode = e.drop.get('node');
this.callback(dragNode.getDOMNode(), dropNode.getDOMNode());
};
return /** @alias module:tool_lp/dragdrop-reorder */ {
// Public variables and functions.
/**
* Create an instance of M.tool_lp.dragdrop
*
* @param {String} group Unique string to identify this interaction.
* @param {String} dragHandleText Alt text for the drag handle.
* @param {String} sameNodeText Used in keyboard drag drop for the list of items target.
* @param {String} parentNodeText Used in keyboard drag drop for the parent target.
* @param {String} sameNodeClass class used to find the each of the list of items.
* @param {String} parentNodeClass class used to find the container for the list of items.
* @param {String} dragHandleInsertClass class used to find the location to insert the drag handles.
* @param {function} callback Drop hit handler.
*/
dragdrop: function(group,
dragHandleText,
sameNodeText,
parentNodeText,
sameNodeClass,
parentNodeClass,
dragHandleInsertClass,
callback) {
// Here we are wrapping YUI. This allows us to start transitioning, but
// wait for a good alternative without having inconsistent UIs.
str.get_strings([
{key: 'emptydragdropregion', component: 'moodle'},
{key: 'movecontent', component: 'moodle'},
{key: 'tocontent', component: 'moodle'},
]).done(function() {
Y.use('moodle-tool_lp-dragdrop-reorder', function() {
var context = {
callback: callback
};
if (dragDropInstance) {
dragDropInstance.destroy();
}
dragDropInstance = M.tool_lp.dragdrop_reorder({
group: group,
dragHandleText: dragHandleText,
sameNodeText: sameNodeText,
parentNodeText: parentNodeText,
sameNodeClass: sameNodeClass,
parentNodeClass: parentNodeClass,
dragHandleInsertClass: dragHandleInsertClass,
callback: Y.bind(proxyCallback, context)
});
});
});
}
};
});