[Tooltip] disableHoverListener shows title

[DostoevskyMF]

The uncontrolled tooltip with disableHoverListener set on true.

Expected Behavior

The setup disableHoverListener property affects the visibility of the standard html title property

Current Behavior

When the disableHoverListener prop is true and open prop is't present then standart html title is appear on wrapped elemen by on hover event.

Examples

  <Tooltip 
      disableHoverListener
      title="text" 
      <TextField />
  </Tooltip>

[eps1lon]

Isn't that what it's supposed to do? Don't prevent the default behavior and fallback to native tooltip behavior?

What is to use case for this? Why would you use the Tooltip component if you never want to display a tooltip?

I guess you issue is that you're passing undefined to open while you consider that Tooltip controlled? Have you considered casting to a boolean e.g.

 <Tooltip 
      open={Boolean(possiblyUndefinedControlledOpen)}
      title="text" 
      <TextField />
  </Tooltip>

[oliviertassinari]

@eps1lon I believe it's a bug. We shouldn't be displaying the native title even when people are using disableHoverListener: https://codesandbox.io/s/ooqx0oz555.

We need to change the handler a bit. It shouldn't be too hard to fix, but it's not very important either.

[DostoevskyMF]

@eps1lon I mean a behavior that @oliviertassinari showed. In the docs in trigger sections same case https://material-ui.com/demos/tooltips/
In this case we can't to disable showing standard tooltip and the prop disableHoverListener becomes useless