Background:
Adding "soft" validation to the following fields should help users filling in templates to catch errors earlier on.
Parameter warnings by type of parameter:
| Param type | Expected value | Text | Type of message | |
| [x] | Number | any combination of 0-9 | This parameter expects only numerical values, 0-9. | Warning |
| [x] | Date | ISO 8601 (YYYY-MM-DD, YYYY, YYYY-MM, --MM-DD) | This parameter expects dates formatted in ISO 8601. | Warning |
| [x] | Combobox | Suggested values as defined in TemplateData | [already implemented] This is not one of the suggested values and may not work with the template. | Notice |
| File | Filename without file: prefix | This template likely expects a filename without prefix. If you experience issues, try removing it. | Notice | |
Situation based warnings:
| Situation | Text | Type of Message | |
| [x] | Adding undefined parameters T117890: Alert the user when adding template parameter not defined by TemplateData | This user-added parameter may not be supported by the template. | Notice |
| [ ] | Required parameters | [Switch current pop-up warning to inline warning] | Warning |
Requirements:
- Validation should appear in real time, but not before the user has stopped typing and clicked out of the field.
- Validation should provide enough flexibility to the user to continue with the value filled in if desired (i.e. validation should not block the user from saving).
- Investigate: if there are any other "pop-up" warnings currently in place that should be changed to inline warnings.
Mocks:
Use OOUI FieldLayout with notice and FieldLayout with warning
