Comment 93 for bug 307680

Created an attachment (id=386860)
Proposed Patch for bug 350174 v1

Proposed Patch v1

1) Modifies the getItems function in calMemoryCalendar.js to allow returning of expanded occurrence sets of repeating tasks when the start date is not specified. Only the end date of a date range is necessary to determine a finite occurrence set, as the start date can be determined by the DTSTART property of the parent item.
2) Adds a new style for non-expanded parent items of repeating tasks, to distinguish between parent items and occurrences. This style will only appear in non-datebound lists. Repeating tasks are shown with blue text, as well as a "greyed out" check box to prevent inadvertantly marking the entire series as complete.
3) Disables toggling of completed status via clicking the check box for repeating parent items to resolve bug 373775.
4) Creates a new non-datebound filter option "Repeating Tasks" to show only parent items of repeating tasks .
5) Creates a new date-bound filter option "Current" to show expanded occurrences of all tasks through the selected date of the current view (the current date by default).
6) Modifies the other filter options besides "All" and "Repeating Tasks" show expanded occurrences of all tasks through the selected date of the current view.
7) Reorders the filter options to show "Current Tasks" as the default first option, as occurrences of repeating tasks are most likely what the user expects to see by default. The non-datebound "All" tasks option moved to the bottom of the list.
8) Sets the date filter of the task list in the today pane to show expanded occurrences of tasks through the current date.