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using System.Collections.Generic;
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public delegate void TasksChangedHandler (TaskManager manager, Task task);
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public class TaskManager
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#region Private Members
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Dictionary<string, Gtk.TreeIter> task_iters;
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#endregion // Private Members
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public TaskManager (string directory) :
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this (directory, Path.Combine (directory, "Archive"))
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public TaskManager (string directory, string archive_directory)
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Logger.Log ("TaskManager created with path \"{0}\".", directory);
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tasks_dir = directory;
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archive_dir = archive_directory;
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tasks = new Gtk.ListStore (typeof (Task));
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task_iters = new Dictionary<string,Gtk.TreeIter> ();
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bool first_run = FirstRun ();
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// First run. Create "Learn About Tomboy" task.
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#endregion // Constructors
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#region Public Properties
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public Gtk.ListStore Tasks
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#endregion // Public Properties
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#region Public Methods
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/// Delete the specified task from the system.
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public void Delete (Task task)
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if (File.Exists (task.FilePath)) {
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if (archive_dir != null) {
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// FIXME: Instead of moving deleted tasks into the archive dir, move them into a backup dir
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if (!Directory.Exists (archive_dir))
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Directory.CreateDirectory (archive_dir);
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Path.Combine (archive_dir,
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Path.GetFileName (task.FilePath));
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if (File.Exists (archive_path))
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File.Delete (archive_path);
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File.Move (task.FilePath, archive_path);
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File.Delete (task.FilePath);
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string uri = task.Uri;
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if (task_iters.ContainsKey (uri)) {
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Gtk.TreeIter iter = task_iters [uri];
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tasks.Remove (ref iter);
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task_iters.Remove (uri);
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Logger.Log ("Deleting task '{0}'.", task.Summary);
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if (TaskDeleted != null)
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TaskDeleted (this, task);
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/// Create a new Task with the specified summary.
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/// <param name="summary">The summary of the new task. This may be an
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/// empty string but should not be null.</param>
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public Task Create (string summary)
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throw new ArgumentNullException ("summary", "You cannot create the a new task with a null summary. Use String.Empty instead.");
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// if (summary.Length > 0 && Find (summary) != null)
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// throw new Exception ("A task with this summary already exists");
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string filename = MakeNewFileName ();
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Task new_task = Task.CreateNewTask (summary, filename, this);
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new_task.Renamed += OnTaskRenamed;
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new_task.Saved += OnTaskSaved;
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new_task.StatusChanged += OnTaskStatusChanged;
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Gtk.TreeIter iter = tasks.Append ();
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tasks.SetValue (iter, 0, new_task);
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task_iters [new_task.Uri] = iter;
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if (TaskAdded != null)
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TaskAdded (this, new_task);
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new_task.QueueSave (true);
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/// Find an existing task with the specified summary.
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/// <param name="summary">The summary string to search for.</param>
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public Task Find (string summary)
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if (tasks.GetIterFirst (out iter)) {
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Task task = tasks.GetValue (iter, 0) as Task;
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if (task.Summary.ToLower () == summary.ToLower ())
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} while (tasks.IterNext (ref iter));
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public Task FindByUri (string uri)
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if (task_iters.ContainsKey (uri)) {
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Gtk.TreeIter iter = task_iters [uri];
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Task task = tasks.GetValue (iter, 0) as Task;
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/// Save any task that hasn't been saved already.
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/// This should only be called by TasksApplicationAddin.Shutdown ().
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public void Shutdown ()
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Logger.Log ("Saving unsaved tasks...");
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if (tasks.GetIterFirst (out iter)) {
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Task task = tasks.GetValue (iter, 0) as Task;
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} while (tasks.IterNext (ref iter));
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/// Return a list of tasks whose origin note is the note specified.
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public List<Task> GetTasksForNote (Note note)
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List<Task> list = new List<Task> ();
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if (tasks.GetIterFirst (out iter)) {
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Task task = tasks.GetValue (iter, 0) as Task;
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if (task.OriginNoteUri != null &&
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task.OriginNoteUri.CompareTo (note.Uri) == 0)
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} while (tasks.IterNext (ref iter));
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#endregion // Public Methods
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public static event TasksChangedHandler TaskDeleted;
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public static event TasksChangedHandler TaskAdded;
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public static event TaskRenamedHandler TaskRenamed;
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public static event TaskSavedHandler TaskSaved;
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public static event TaskStatusChangedHandler TaskStatusChanged;
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#region Private Methods
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/// Create the notes directory if it doesn't exist yet.
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void CreateTasksDir ()
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if (!DirectoryExists (tasks_dir)) {
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// First run. Create storage directory.
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CreateDirectory (tasks_dir);
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// For overriding in test methods.
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protected virtual bool DirectoryExists (string directory)
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return Directory.Exists (directory);
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// For overriding in test methods.
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protected virtual DirectoryInfo CreateDirectory (string directory)
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return Directory.CreateDirectory (directory);
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protected virtual bool FirstRun ()
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return !DirectoryExists (tasks_dir);
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/// Create a "Learn About Tomboy" task
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protected virtual void CreateStartTasks ()
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Task first_task = Create (Catalog.GetString ("Learn About Tomboy"));
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"Click on the Tomboy icon in your panel and select " +
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"\"Start Here\". You'll see more instructions on how " +
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"to use Tomboy inside the \"Start Here\" note.\n\n" +
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"When you've opened the \"Start Here\" note, mark this " +
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"task as being complete.");
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first_task.QueueSave (true);
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} catch (Exception e) {
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Logger.Warn ("Error creating the \"Learn About Tomboy\" task: {0}\n{1}",
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e.Message, e.StackTrace);
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protected virtual void LoadTasks ()
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string [] files = Directory.GetFiles (tasks_dir, "*.task");
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foreach (string file_path in files) {
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Task task = Task.Load (file_path, this);
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task.Renamed += OnTaskRenamed;
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task.Saved += OnTaskSaved;
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task.StatusChanged += OnTaskStatusChanged;
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Gtk.TreeIter iter = tasks.Append ();
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tasks.SetValue (iter, 0, task);
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task_iters [task.Uri] = iter;
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} catch (System.Xml.XmlException e) {
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Logger.Log ("Error parsing task XML, skipping \"{0}\": {1}",
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Logger.Debug ("{0} tasks loaded", task_iters.Count);
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string MakeNewFileName ()
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Guid guid = Guid.NewGuid ();
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return Path.Combine (tasks_dir, guid.ToString () + ".task");
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void EmitRowChangedForTask (Task task)
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if (task_iters.ContainsKey (task.Uri)) {
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Gtk.TreeIter iter = task_iters [task.Uri];
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tasks.EmitRowChanged (tasks.GetPath (iter), iter);
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#endregion // Private Methods
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#region Event Handlers
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void OnTaskRenamed (Task task, string old_summary)
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EmitRowChangedForTask (task);
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if (TaskRenamed != null)
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TaskRenamed (task, old_summary);
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void OnTaskSaved (Task task)
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EmitRowChangedForTask (task);
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if (TaskSaved != null)
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void OnTaskStatusChanged (Task task)
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EmitRowChangedForTask (task);
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if (TaskStatusChanged != null)
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TaskStatusChanged (task);
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#endregion // Event Handlers
added
removed
Tomboy/Addins/Tasks/TaskManager.cs
