/// <summary>
/// The event called when a login has been submitted. The event will
/// default the user interface of the form and deactivate the
/// buttons. Updates will take place on another thread.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnSubmit_Click(object sender, EventArgs e)
{
// Ignore the click if we have an empty user name or password
if (0 == txtUsername.TextLength)
{
txtUsername.Focus();
return;
}
if (0 == txtPassword.TextLength)
{
txtPassword.Focus();
return;
}
//reset error text box and size of the form
txtErrors.Text = "";
txtErrors.Visible = false;
this.Size = new System.Drawing.Size(300, 194);
// Disable the buttons while we're processing
btnSubmit.Enabled = false;
btnCancel.Enabled = false;
// Also show the progress bar
pbLogin.Visible = true;
m_state = new OSBLEState(txtUsername.Text, txtPassword.Text);
m_state.RefreshAsync(this.LoginAttemptCompleted_CT);
}
/// <summary>
/// The function called when the login button is clicked. The event will show the
/// login form and update mState with its return value. The value of mState will
/// then be used to update the ribbon user interface.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnLogin_Click(object sender, RibbonControlEventArgs e)
{
//display login form and retrieve OSBLE state
frmOSBLELogin loginForm = new frmOSBLELogin();
mState = loginForm.DoPrompt();
}
/// <summary>
/// Logs out a user and updates the ribbon user interface to prevent
/// the option of submitting documents to courses. The drop down menu
/// is emptied.
/// </summary>
private void logoutActions()
{
//set state to null
mState = null;
//hide OSBLE options and switch login and logout visibility
grpOSBLEOptions.Visible = false;
btnLogin.Visible = true;;
btnLogout.Visible = false;
//reset last save label
lblLastSave.Label = "Last Save: ";
//clear drop down course menu
dropDownCourse.Items.Clear();
RibbonDropDownItem item = Globals.Factory.GetRibbonFactory().CreateRibbonDropDownItem();
item.Label = "No Courses Found";
item.Tag = null;
dropDownCourse.Items.Add(item);
//clear drop down assignment menu
dropDownAssignment.Items.Clear();
item.Label = "No Assignments Found";
item.Tag = null;
dropDownAssignment.Items.Add(item);
}
/// <summary>
/// Saves the active word document and zips the file in the local directory.
/// </summary>
/// <param name="state"></param>
/// <param name="course"></param>
/// <param name="assignment"></param>
/// <param name="doc"></param>
/// <returns></returns>
public static SaveResult Save(OSBLEState state, int courseId, int assignmentId, Document doc)
{
//if the document doesn't exist or contains changes then request the user to save
if (!File.Exists(doc.FullName) || !doc.Saved)
{
return(new SaveResult(false, "Please save the current document before submitting."));
}
string zipPath = null;
byte[] zipData = null;
//zip document
try
{
zipPath = SaveFileToZip(state.FullName, doc);
zipData = File.ReadAllBytes(zipPath);
}
catch (Exception e)
{
return(new SaveResult(true, "Failed to package document before sending to the server."));
}
//package assignment information
var submitevent = new SubmitEvent();
submitevent.AssignmentId = assignmentId;
submitevent.CourseId = courseId;
submitevent.SolutionData = zipData;
HttpResponseMessage response = null;
//call asynchronous web api helper function
try
{
response = AsyncServiceClient.SubmitAssignment(submitevent, state.AuthToken).Result;
}
catch (Exception e)
{
return(new SaveResult(false, "Failed to submit document to the server."));
}
if (response.IsSuccessStatusCode)
{
return(new SaveResult(true, null));
}
else
{
return(new SaveResult(false, "The server failed to process the submission."));
}
}
public OSBLEStateEventArgs(bool success, string message, OSBLEState state)
{
m_message = message;
m_success = success;
m_state = state;
}