[Proposal] Add validation tooltip message to ALL fields

[GogoVega]

Hi team,

When an input is invalid, the field turns red but we can go further... Only certain entries have a tooltip that appears to show the error to the user which is more practical than "invalid field".

Unfortunately, as I said, there are only a few entries that use it and I want to fix it.

There are two ways to trigger a tooltip:

1. From node properties

Currently only inputs NOT builded with typedInput support tooltip.
I added support for inputs built with typedInput in #4449 and took the opportunity to add a tooltip to the field type (typeField) in #4450.

2. From jQuery

All that's left is built-in jQuery support to use the tooltip in a container like the inject node.

Are you interested?

@knolleary, regarding backwards compatibility, I just have to be careful to return a boolean for .typedInput("validate") method?

Thank you all for your feedback

[dceejay]

Do those messages get pulled from the message catalogue ? I.E. are they i18n translatable ?

[GogoVega]

Yes, the principle of validation does not change, it is entirely possible to use i18n in the validate function.

For the default validation functions (e.g. msg) the node-red catalog will be used

I use this kind of function for my nodes:

[GogoVega]

@knolleary, @dceejay,
To generate the tooltip there are two possibilities:

1. In typedInput validate and the returned value is a boolean
2. In validateNodeEditorProperty but the validate function (PR#4455) must return a string

The advantage of the second is that it's centralized, the disadvantage is for backward compatibility. What is the best approach?

[GogoVega]

Hi Team,
Made some progress on the tooltip validation message - Add tooltip input validation msg · GogoVega/node-red@ba08cf0 · GitHub

Last remaining is to translate the errors created by normalizePropertyExpression, how do we do it?