private void sendFeedbackButtonClick(object sender, EventArgs e)
{
string feedback = feedbackTextBox.Text;
int score = -1;
if (!Int32.TryParse(scoreTextBox.Text, out score))
{
MessageBox.Show("Score must be an integer.");
return;
}
if (score > assignment.maxScore)
{
MessageBox.Show("You cannot have a score higher than the maximum score.");
return;
}
if (feedback.Length > 511)
{
MessageBox.Show("Your feedback must be shorter. Please shorten it and try again.");
return;
}
APIHandler.GiveFeedback(currentStudent, assignment, score, feedback);
MessageBox.Show("Feedback provided!");
}
async private void OnRefreshButtonClick(object sender, EventArgs e)
{
refreshButton.Enabled = false; // Disable refresh button and show loading
loadingLabel.Show();
loadingLabel.Text = "Loading your homework, please wait...";
progressBar.Show();
label3.Show();
tabController.Hide();
Homework[] tasks = await APIHandler.GetHomework(student : user, groupHardRefresh : true);
tabController.UpdateTabs(disposeCurrentTabs: true, newTasks: tasks); // Provide new data to the tab controller
this.user = await APIHandler.GetStudent(id : this.user.id); // Update student
DecorateForm(); // Update the form accordingly (e.g. new ALPs grade, username)
// TODO: Show error to re-sign-in if a teacher changes username whilst student using the program
refreshButton.Enabled = true;
loadingLabel.Hide();
progressBar.Hide();
label3.Hide();
tabController.Show();
}
private void editLinkLabel_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
EditTask edit = new EditTask(assignment);
DialogResult dialog = edit.ShowDialog();
if (dialog != DialogResult.OK)
{
return;
}
// Make these local vars to prevent "marshal-by-reference" classes - https://stackoverflow.com/questions/4178576/accessing-a-member-on-form-may-cause-a-runtime-exception-because-it-is-a-field-o
int newScore = edit.newScore;
DateTime newDueDate = edit.newDueDate;
Dictionary <string, string> formData = new Dictionary <string, string> {
{ "title", edit.newTitle },
{ "description", edit.newDescription },
{ "max_score", newScore.ToString() },
{ "date_due", newDueDate.ToString("dd/MM/yyyy|HH:mm") }
};
APIHandler.EditAssignment(assignment, formData);
ParentRefreshList();
MessageBox.Show("Edited task successfully!");
}
async private void studentSignInClick(object sender, EventArgs e)
{
/// <summary>
/// Subroutine that is executed when a student wants to sign into the program.
/// It sends a GET request to the API to try and obtain student details.
/// </summary>
string username = usernameTextBox.Text;
string password = passwordTextBox.Text;
flushTextBoxes();
if (checkBox1.Checked)
{
if (username == "")
{
MessageBox.Show("Username cannot be left blank!");
return;
}
StudentGetPassword passwordForm = new StudentGetPassword();
var dialog = passwordForm.ShowDialog();
if (dialog == DialogResult.OK)
{
password = passwordForm.passwordResult;
}
else
{
MessageBox.Show("An error has occurred, please try again.");
return;
}
// Send request to API to change password of `username` to `password`
try {
await APIHandler.ResetPassword(username, password);
string newCredentials = WebRequestHandler.ConvertToBase64(username + ":" + password);
WebRequestHandler.SetAuthorizationHeader(newCredentials);
Student student = await APIHandler.GetStudent(username : username); // Get the student with username `username` from the API
closedByProgram = true; // Set boolean to prevent Application.Exit() call
this.Close(); // Close current form
FormController.studentMain = new StudentMainForm(student); // Open the new form
} catch (HttpStatusUnauthorized) {
MessageBox.Show("Your account already has a password - please ask a teacher to reset your password.");
return;
}
}
else
{
if (username == "" || password == "")
{
MessageBox.Show("Username or password cannot be left blank!"); //TODO: Does this need a messagebox? Nicer way of showing error?
return; // Do not execute more of the subroutine
}
string credentials = WebRequestHandler.ConvertToBase64(username + ":" + password);
APIHandler.SetAuthorizationHeader(credentials);
if (await APIHandler.IsUserValid(UserType.Student, username, password))
{
Student student = await APIHandler.GetStudent(username : username); // Get the student with username `username` from the API
closedByProgram = true; // Set boolean to prevent Application.Exit() call
this.Close(); // Close current form
FormController.studentMain = new StudentMainForm(student); // Open the new form
}
else
{
MessageBox.Show("Your account doesn't exist.");
}
}
}
async private void submitChangedClick(object sender, EventArgs e)
{
string password = passwordTextbox1.Text;
string confirmedPassword = passwordTextbox2.Text;
string username = usernameTextbox.Text;
string title = titleTextBox.Text;
string forename = forenameTextBox.Text;
string surname = surnameTextBox.Text;
//passwordTextbox1.Text = "";
//passwordTextbox2.Text = "";
// Username checks
if (usernameCheckBox.Checked)
{
if (username == "")
{
MessageBox.Show("Username field needs filling!");
return;
}
else if (username.Contains(":"))
{
MessageBox.Show("Username cannot contain a colon. Please remove it.");
}
else
{
bool usernameTaken = await APIHandler.IsUsernameTaken(this.userType, username);
if (usernameTaken)
{
MessageBox.Show("Username has already been taken, please try another!");
return;
}
else
{
this.newUsername = username;
}
}
}
// Password checks
if (passwordCheckBox.Checked)
{
// Passwords need to be included
if (password == "" || confirmedPassword == "")
{
MessageBox.Show("Password fields need filling!");
return;
}
if (password != confirmedPassword)
{
MessageBox.Show("Passwords do not match!"); // TODO: Better way of showing this error
return;
}
if (!User.IsPasswordValid(password))
{
MessageBox.Show("Password is not of sufficient complexity!");
return;
}
// Password is valid at this point
this.newPassword = password;
}
// New name checks
if (nameCheckBox.Checked)
{
if (title == "" || forename == "" || surname == "")
{
MessageBox.Show("You must not leave any fields blank!");
return;
}
this.newTitle = title;
this.newForename = forename;
this.newSurname = surname;
}
this.DialogResult = DialogResult.OK;
this.Close();
}