feat(MatDatePicker): DateRange should implement min/max duration
- Dominant language
- TypeScript
- Stars
- 25k
- Forks
- 6.8k
- Avg merge
- 1d 8h
- Merged PRs (30d)
- 91
Description
#### Feature Description
I would like to use date picker to allow a user to pick any number of days from 1-7, but no more than 7.
This could be implemented by adding a minimum (default: 1) and maximum (default: unlimited) duration values to the DateRange type.
If the minimum duration is not default:
- create greyed-out preview overlay of end values less than the minimum duration but not before the start value. Selecting a value within the minimum duration or before the start date should reset the start date to new date.
If the maximum duration is not default:
- create a preview up to the maximum duration. Selecting value beyond the maximum duration becomes new start date.
Example with (min 3 days, max 7 days) might look like something this:

(this is only to illustrate, I'm not a UI designer or anything)
#### Use Case
Currently, I must have the user use a dropdown to pick their duration first (which informs a MatDateRangeSelectionStrategy), and then use the date picker to select a start date.

Would very much like to get rid of the dropdown.
Contributor guide
Research direction
Start by reading the MatDatePicker date-range behavior and MatDateRangeSelectionStrategy described in the issue. Define and verify minimum and maximum duration behavior, including the preview overlays and resetting the start date when a selection falls outside the allowed range.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- angular, typescript
- Domain
- frontend
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 25/100