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/* IVLE - Informatics Virtual Learning Environment
* Copyright (C) 2007-2008 The University of Melbourne
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Module: Group management system (client)
* Author: Matt Giuca
* Date: 21/7/2008
*/
serviceapp = 'userservice';
/* Creates a group */
function create_new_group(projectsetid)
{
groupnm = window.prompt('Please enter a name for the group','');
/* If the provided name is empty, or the prompt is cancelled, stop. */
if (groupnm)
{
args = {
'projectsetid': projectsetid,
'groupnm':groupnm,
'nick': groupnm
};
response = ajax_call(null, serviceapp, 'create_group', args, 'POST');
if (response.status == 200)
{
/* pass */
}
else
{
alert("Error: Could not add group. Does it already exist?");
}
/* Reload the display */
window.location.href = window.location.href;
}
}
function manage_group(offeringid, groupid, namespace)
{
var elem = document.getElementById(namespace);
var button = document.getElementById(namespace+"_button");
var manage_div = document.createElement("div")
manage_div.id = namespace + "_contents";
elem.insertBefore(manage_div, button);
/* Refresh contents */
list_projectgroup_contents(offeringid, groupid, manage_div.id);
/* Remove the button element */
elem.removeChild(button);
}
/* Lists the information about a particular project group identified by groupid
* in an offering identified by offeringid in the element with id elemnm. May
* be called multiple times safely to refresh the displayed information.
*/
function list_projectgroup_contents(offeringid, groupid, elemnm)
{
var contents = document.getElementById(elemnm);
dom_removechildren(contents);
var callback = function(xhr)
{
var members = JSON.parse(xhr.responseText);
var available = members.available;
var groupmembers = members.groupmembers;
/* Existing members */
var ul = document.createElement("ul");
for (var i=0; i<groupmembers.length; i++)
{
var member = groupmembers[i];
var li = dom_make_text_elem("li", member.fullname + " (" +
member.login + ")");
var rmbutton = document.createElement("input");
rmbutton.value = "Remove";
rmbutton.type = "image";
/* XXX: There must be a better way to do this! */
rmbutton.src = "/+media/ivle.webapp.groups/cross.png";
$(rmbutton).click(function(offeringid, login, groupid, elemnm)
{
return function() {
if (!confirm("Are you sure want to revoke this user's membership?"))
return;
this.disabled = true;
var args = {'login': login, 'groupid': groupid};
ajax_call(null, serviceapp, 'unassign_group', args, 'POST');
list_projectgroup_contents(offeringid, groupid, elemnm);
};
}(offeringid, member.login, groupid, elemnm));
li.appendChild(rmbutton);
ul.appendChild(li);
}
/* Add member box */
var add_li = document.createElement("li");
var select = document.createElement("select");
for (var i=0; i<available.length; i++)
{
var option = dom_make_text_elem("option", available[i].login);
option.value = available[i].login;
select.appendChild(option);
}
var button = document.createElement("input");
button.value = "Add";
button.type = 'button';
$(button).click(function()
{
this.disabled = true;
args = {'login': select.value, 'groupid': groupid};
ajax_call(null, serviceapp, 'assign_group', args, 'POST');
list_projectgroup_contents(offeringid, groupid, elemnm);
});
add_li.appendChild(select);
add_li.appendChild(button);
ul.appendChild(add_li);
contents.appendChild(ul);
}
var args = {'offeringid': offeringid, 'groupid': groupid};
ajax_call(callback, serviceapp, 'get_group_membership', args, 'GET');
}
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