/// <summary>
/// If the deleted task is included inside this note, this
/// handler removes the TextTag surrounding the task.
/// </summary>
private void OnTaskDeleted(TaskManager manager, Task task)
{
if (task.OriginNoteUri == null || task.OriginNoteUri != Note.Uri)
{
return;
}
// Search through the note looking for the TaskTag so that it can
// be renamed
// Iterate through the lines looking for tasks
Gtk.TextIter iter = Buffer.StartIter;
iter.ForwardLine(); // Move past the note's title
do
{
TaskTag task_tag = (TaskTag)
Buffer.GetDynamicTag("task", iter);
if (task_tag != null)
{
if (task_tag.Uri != task.Uri)
{
continue;
}
RemoveTaskFromLine(ref iter);
break;
}
} while (iter.ForwardLine());
}
/// <summary>
/// If the specified task is included inside this note, this
/// handler will update the task's status representation.
/// </summary>
private void OnTaskStatusChanged(Task task)
{
if (task.OriginNoteUri == null || task.OriginNoteUri != Note.Uri)
{
return;
}
// Search through the note looking for the TaskTag so that it can
// be updated
// Iterate through the lines looking for tasks
Gtk.TextIter iter = Buffer.StartIter;
iter.ForwardLine(); // Move past the note's title
do
{
TaskTag task_tag = (TaskTag)
Buffer.GetDynamicTag("task", iter);
if (task_tag != null)
{
if (task_tag.Uri != task.Uri)
{
continue;
}
task_tag.CompletionDate = task.CompletionDate;
break;
}
} while (iter.ForwardLine());
}
/// <summary>
/// Remove the task tag on the line specified by the TextIter. This
/// will not remove the "todo:" text (i.e., it will not modify the
/// actual characters of the TextBuffer.
/// <param name="iter">The TextIter specifying the line where the
/// TaskTag should be removed.</param>
/// <returns>True if a TaskTag was removed, otherwise False.</returns>
/// </summary>
bool RemoveTaskTagFromLine(Gtk.TextIter iter)
{
Gtk.TextIter start = iter;
Gtk.TextIter end = iter;
TaskTag task_tag = GetTaskTagFromLineIter(ref start);
if (task_tag == null)
{
return(false);
}
while (start.StartsLine() == false)
{
start.BackwardChar();
}
while (end.EndsLine() == false)
{
end.ForwardChar();
}
// end.ForwardToLineEnd ();
last_removed_tag = null;
Buffer.RemoveTag(task_tag, start, end);
return(true);
}
void OnTagRemoved(object sender, Gtk.TagRemovedArgs args)
{
TaskTag task_tag = args.Tag as TaskTag;
if (task_tag == null)
{
return;
}
last_removed_tag = task_tag;
}
/// <summary>
/// If the renamed task is included inside this note, this
/// handler will update the task summary in the note buffer.
/// </summary>
private void OnTaskRenamed(Task task, string old_title)
{
if (task.OriginNoteUri == null || task.OriginNoteUri != Note.Uri)
{
return;
}
// Search through the note looking for the TaskTag so that it can
// be renamed
if (!ContainsText(old_title))
{
return;
}
// Iterate through the lines looking for tasks
Gtk.TextIter iter = Buffer.StartIter;
iter.ForwardLine(); // Move past the note's title
do
{
TaskTag task_tag = (TaskTag)
Buffer.GetDynamicTag("task", iter);
if (task_tag != null)
{
if (task_tag.Uri != task.Uri)
{
continue;
}
Gtk.TextIter line_start = iter;
while (line_start.StartsLine() == false)
{
line_start.BackwardChar();
}
Gtk.TextIter line_end = iter;
while (line_end.EndsLine() == false)
{
line_end.ForwardChar();
}
// line_end.ForwardToLineEnd ();
Buffer.Delete(ref line_start, ref line_end);
last_removed_tag = task_tag;
Buffer.Insert(ref line_start,
string.Format("{0}: {1}",
Catalog.GetString("todo"),
task.Summary));
task_tag.fillByData(task.Data);
break;
}
} while (iter.ForwardLine());
}
TaskTag GetTaskTagFromLineIter(ref Gtk.TextIter line_iter)
{
TaskTag task_tag = null;
while (line_iter.StartsLine() == false)
{
line_iter.BackwardChar();
}
task_tag = (TaskTag)Buffer.GetDynamicTag("task", line_iter);
return(task_tag);
}
/// <summary>
/// Each time the user enters a newline (presses enter),
/// evaluate the previous line to see if a new task should
/// be created or the previous one removed...
/// </summary>
bool ProcessNewline()
{
Gtk.TextIter iter = Buffer.GetIterAtMark(Buffer.InsertMark);
Gtk.TextIter prev_line = iter;
if (prev_line.BackwardLine() == false)
{
return(false);
}
TaskTag task_tag = GetTaskTagFromLineIter(ref prev_line);
if (task_tag == null)
{
return(false); // nothing to do with tasks here!
}
Task task =
TasksApplicationAddin.DefaultTaskManager.FindByUri(task_tag.Uri);
if (task == null)
{
// This shouldn't happen, but just in case we have a left-over
// TaskTag without a real task, go ahead and remove the TaskTag
// FIXME: Remove TaskTag from the line
return(false);
}
if (task.Summary == string.Empty)
{
// If the previous line's task summary is empty, delete the task
Logger.Debug("Previous line's task summary is empty, deleting it...");
TasksApplicationAddin.DefaultTaskManager.Delete(task);
}
else
{
// If the previous line's task summary is not empty, create a new
// task on the current line.
// I'm disabling the following code for now. It automatically
// starts up a new task on the newline. But since this modifies
// the buffer, it sometimes causes problems.
// TODO: Make the auto-newline work
// Buffer.InsertAtCursor (
// string.Format ("{0}: ",
// Catalog.GetString ("todo")));
}
return(true); // The buffer was modified
}
void UpdateTaskTagStatuses()
{
// FIXME: Should really just create an enumerator class for
// enumerating a Buffer's TaskTags instead of doing it this
// way in almost every method.
Gtk.TextIter iter = Buffer.StartIter;
iter.ForwardLine(); // Move past the note's title
do
{
TaskTag task_tag = (TaskTag)
Buffer.GetDynamicTag("task", iter);
if (task_tag == null)
{
continue;
}
task_tag.UpdateStatus();
} while (iter.ForwardLine());
}
void OnPopulatePopup(object sender, Gtk.PopulatePopupArgs args)
{
Gtk.TextIter click_iter = Buffer.GetIterAtMark(click_mark);
TaskTag task_tag = (TaskTag)
Buffer.GetDynamicTag("task", click_iter);
if (task_tag == null)
{
return;
}
Gtk.MenuItem item;
item = new Gtk.SeparatorMenuItem();
item.Show();
args.Menu.Prepend(item);
item = new Gtk.MenuItem(Catalog.GetString("Open To Do List"));
item.Activated += OnOpenTaskListWindow;
item.Show();
args.Menu.Prepend(item);
item = new TaskMenuItem(task_tag.Uri, Catalog.GetString("To Do Options"));
item.Activated += OnOpenTaskOptions;
item.ShowAll();
args.Menu.Prepend(item);
item = new TaskMenuItem(
task_tag.Uri,
task_tag.CompletionDate == DateTime.MinValue ?
Catalog.GetString("Mark Complete") :
Catalog.GetString("Mark Undone"));
item.Activated += OnToggleCompletionStatus;
item.ShowAll();
args.Menu.Prepend(item);
}
void OnTagRemoved (object sender, Gtk.TagRemovedArgs args)
{
TaskTag task_tag = args.Tag as TaskTag;
if (task_tag == null)
return;
last_removed_tag = task_tag;
}
void OnInsertText (object sender, Gtk.InsertTextArgs args)
{
Gtk.TextIter start = args.Pos;
//Logger.Debug ("TaskNoteAddin.OnInsertText:\n" +
// "\tLength: {0}\n" +
// "\tText: {1}\n" +
// "\tLine: {2}",
// args.Length,
// args.Text,
// args.Pos.Line);
if (args.Length == 1 && args.Text == "\n") {
Gtk.TextIter curr_line = args.Pos;
TaskTag task_tag = GetTaskTagFromLineIter (ref curr_line);
Gtk.TextIter prev_line = args.Pos;
prev_line.BackwardLine ();
/*TaskTag*/
task_tag = GetTaskTagFromLineIter (ref prev_line);
if (task_tag != null) {
// If the user just entered a newline and the previous
// line was a task, do some special processing...but
// we have to do it on idle since there are other
// Buffer.InsertText handlers that we'll screw up if
// we modify anything here.
args.RetVal = ProcessNewline ();
} else {
// Check to see if the previous line is a todo: line
while (prev_line.StartsLine () == false) {
prev_line.BackwardChar ();
}
Gtk.TextIter prev_line_end = prev_line;
while (prev_line_end.EndsLine () == false) {
prev_line_end.ForwardChar ();
}
string prev_line_text = prev_line.GetText (prev_line_end);
Match match = regex.Match (prev_line_text);
if (match.Success && last_removed_tag != null) {
TaskManager task_mgr = TasksApplicationAddin.DefaultTaskManager;
Task task;
task = task_mgr.FindByUri (last_removed_tag.Uri);
if (task != null) {
// Update the task's summary and make sure that
// the previous line is appropriately tagged.
string summary = GetTaskSummaryFromLine (prev_line_text);
task.Summary = summary;
Buffer.ApplyTag (last_removed_tag, prev_line, prev_line_end);
} else {
Logger.Debug ("Shouldn't ever hit this code (hopefully)");
}
}
last_removed_tag = null;
}
} else {
ApplyTaskTagToBlock (ref start, args.Pos);
}
}
/// <summary>
/// If the renamed task is included inside this note, this
/// handler will update the task summary in the note buffer.
/// </summary>
private void OnTaskRenamed (Task task, string old_title)
{
if (task.OriginNoteUri == null || task.OriginNoteUri != Note.Uri)
return;
// Search through the note looking for the TaskTag so that it can
// be renamed
if (!ContainsText (old_title))
return;
// Iterate through the lines looking for tasks
Gtk.TextIter iter = Buffer.StartIter;
iter.ForwardLine (); // Move past the note's title
do {
TaskTag task_tag = (TaskTag)
Buffer.GetDynamicTag ("task", iter);
if (task_tag != null) {
if (task_tag.Uri != task.Uri)
continue;
Gtk.TextIter line_start = iter;
while (line_start.StartsLine () == false)
line_start.BackwardChar ();
Gtk.TextIter line_end = iter;
while (line_end.EndsLine () == false) {
line_end.ForwardChar ();
}
// line_end.ForwardToLineEnd ();
Buffer.Delete (ref line_start, ref line_end);
last_removed_tag = task_tag;
Buffer.Insert (ref line_start,
string.Format ("{0}: {1}",
Catalog.GetString ("todo"),
task.Summary));
break;
}
} while (iter.ForwardLine());
}
/// <summary>
/// Remove the task tag on the line specified by the TextIter. This
/// will not remove the "todo:" text (i.e., it will not modify the
/// actual characters of the TextBuffer.
/// <param name="iter">The TextIter specifying the line where the
/// TaskTag should be removed.</param>
/// <returns>True if a TaskTag was removed, otherwise False.</returns>
/// </summary>
bool RemoveTaskTagFromLine (Gtk.TextIter iter)
{
Gtk.TextIter start = iter;
Gtk.TextIter end = iter;
TaskTag task_tag = GetTaskTagFromLineIter (ref start);
if (task_tag == null)
return false;
while (start.StartsLine () == false) {
start.BackwardChar ();
}
while (end.EndsLine () == false) {
end.ForwardChar ();
}
// end.ForwardToLineEnd ();
last_removed_tag = null;
Buffer.RemoveTag (task_tag, start, end);
return true;
}
void ApplyTaskTagToBlock (ref Gtk.TextIter start, Gtk.TextIter end)
{
Gtk.TextIter line_end = start;
while (line_end.EndsLine () == false) {
line_end.ForwardChar ();
}
// For some reason, the above code behaves like it should (i.e.,
// without advancing to the next line). The line below that's
// commented out doesn't work. It ends up advancing the iter to
// the end of the next line. Very strange!
// line_end.ForwardToLineEnd ();
TaskTag task_tag = GetTaskTagFromLineIter (ref start);
if (task_tag != null) {
Buffer.RemoveTag (task_tag, start, line_end);
} else {
task_tag = last_removed_tag;
}
string text = start.GetText (line_end);
// Logger.Debug ("Evaluating with regex: {0}", text);
TaskManager task_mgr = TasksApplicationAddin.DefaultTaskManager;
Task task;
Match match = regex.Match (text);
if (match.Success) {
string summary = GetTaskSummaryFromLine (text);
if (task_tag == null) {
task = task_mgr.Create (summary);
task.QueueSave (true);
task.OriginNoteUri = Note.Uri;
task_tag = (TaskTag)
Note.TagTable.CreateDynamicTag ("task");
task_tag.Uri = task.Uri;
} else {
task = task_mgr.FindByUri (task_tag.Uri);
if (task != null) {
task.Summary = summary;
} else {
Logger.Debug ("FIXME: Add code to remove the task tag if this case is hit");
}
}
Buffer.ApplyTag (task_tag, start, line_end);
last_removed_tag = null;
} else if (task_tag != null) {
// This task should be deleted
task = task_mgr.FindByUri (task_tag.Uri);
if (task != null) {
task_mgr.Delete (task);
}
last_removed_tag = null;
}
}
void OnInsertText(object sender, Gtk.InsertTextArgs args)
{
Gtk.TextIter start = args.Pos;
//Logger.Debug ("TaskNoteAddin.OnInsertText:\n" +
// "\tLength: {0}\n" +
// "\tText: {1}\n" +
// "\tLine: {2}",
// args.Length,
// args.Text,
// args.Pos.Line);
if (args.Length == 1 && args.Text == "\n")
{
Gtk.TextIter curr_line = args.Pos;
TaskTag task_tag = GetTaskTagFromLineIter(ref curr_line);
Gtk.TextIter prev_line = args.Pos;
prev_line.BackwardLine();
/*TaskTag*/
task_tag = GetTaskTagFromLineIter(ref prev_line);
if (task_tag != null)
{
// If the user just entered a newline and the previous
// line was a task, do some special processing...but
// we have to do it on idle since there are other
// Buffer.InsertText handlers that we'll screw up if
// we modify anything here.
args.RetVal = ProcessNewline();
}
else
{
// Check to see if the previous line is a todo: line
while (prev_line.StartsLine() == false)
{
prev_line.BackwardChar();
}
Gtk.TextIter prev_line_end = prev_line;
while (prev_line_end.EndsLine() == false)
{
prev_line_end.ForwardChar();
}
string prev_line_text = prev_line.GetText(prev_line_end);
Match match = regex.Match(prev_line_text);
if (match.Success && last_removed_tag != null)
{
TaskManager task_mgr = TasksApplicationAddin.DefaultTaskManager;
Task task;
task = task_mgr.FindByUri(last_removed_tag.Uri);
if (task != null)
{
// Update the task's summary and make sure that
// the previous line is appropriately tagged.
string summary = GetTaskSummaryFromLine(prev_line_text);
task.Summary = summary;
Buffer.ApplyTag(last_removed_tag, prev_line, prev_line_end);
}
else
{
Logger.Debug("Shouldn't ever hit this code (hopefully)");
}
}
last_removed_tag = null;
}
}
else
{
ApplyTaskTagToBlock(ref start, args.Pos);
}
}
void ApplyTaskTagToBlock(ref Gtk.TextIter start, Gtk.TextIter end)
{
Gtk.TextIter line_end = start;
while (line_end.EndsLine() == false)
{
line_end.ForwardChar();
}
// For some reason, the above code behaves like it should (i.e.,
// without advancing to the next line). The line below that's
// commented out doesn't work. It ends up advancing the iter to
// the end of the next line. Very strange!
// line_end.ForwardToLineEnd ();
TaskTag task_tag = GetTaskTagFromLineIter(ref start);
if (task_tag != null)
{
Buffer.RemoveTag(task_tag, start, line_end);
}
else
{
task_tag = last_removed_tag;
}
string text = start.GetText(line_end);
// Logger.Debug ("Evaluating with regex: {0}", text);
TaskManager task_mgr = TasksApplicationAddin.DefaultTaskManager;
Task task;
Match match = regex.Match(text);
if (match.Success)
{
string summary = GetTaskSummaryFromLine(text);
if (task_tag == null)
{
task = task_mgr.Create(summary);
task.QueueSave(true);
task.OriginNoteUri = Note.Uri;
task_tag = (TaskTag)
Note.TagTable.CreateDynamicTag("task");
task_tag.Uri = task.Uri;
}
else
{
task = task_mgr.FindByUri(task_tag.Uri);
if (task != null)
{
task.Summary = summary;
}
else
{
Logger.Debug("FIXME: Add code to remove the task tag if this case is hit");
}
}
Buffer.ApplyTag(task_tag, start, line_end);
last_removed_tag = null;
}
else if (task_tag != null)
{
// This task should be deleted
task = task_mgr.FindByUri(task_tag.Uri);
if (task != null)
{
task_mgr.Delete(task);
}
last_removed_tag = null;
}
}
