Components: shouldPlaceholderFloat doesn't work

[dwasyluk]

Bug, feature request, or proposal:

Bug

What is the expected behavior?

Place holder should not float on focus.

What is the current behavior?

Placeholder floats on focus.

What are the steps to reproduce?

using master latest, this does not work to stop floating placeholder and it should based on docs:
```

[Wykks]

Try with [shouldPlaceholderFloat]="false"
Without [] you pass false as a string.
Also, you should use floatPlaceholder from mat-form-field instead
https://material.angular.io/components/form-field/overview#floating-placeholder

[josephperrott]

Closing as this should be managed through mat-form-field

[finalxcode]

https://material.angular.io/components/form-field/overview#floating-placeholder

[lifan0127]

@Wykks I don't think [shouldPlaceholderFloat]="false" works. Not sure why it is still in the documentation: https://material.angular.io/components/input/api

[cstodor]

shouldPlaceholderFloat: boolean is deprecated. Not sure if there are any other alternatives..

[dadasign]

You can use floatLabel: FloatLabelType now.

[trsh]

What are the possible values of FloatLabelType ?

[dadasign]

@trsh
'always' | 'never' | 'auto'
https://github.com/angular/material2/blob/d6fec3573cbc854d5bf67d920c5b0f8a6eef0c86/src/lib/core/label/label-options.ts#L16

[trsh]

Should be added to docs properly

[gotwig]

For anyone curios, if you actualy dont want floating placeholder OR floating label, use this:
<mat-form-field floatLabel="never"> <input placeholder="My Placeholder" matInput> </mat-form-field>

Very badly described in the docs, sadly!

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