Add option to prevent triggering onChange event after onSelect

[lgordey]

• ref How to prevent Autocomplete change value onSelect ant-design/ant-design#5610
• onChange is always triggering after onSelect, cannot set/clear values by setState
• add triggerOnchange which will be true by default, so you can prevent firing input onChange after option selection

[coveralls]

Coverage remained the same at 95.734% when pulling 42c9446 on lgordey:master into f74811e on react-component:master.

[RaoHai]

@yesmeck

[yesmeck]

The name triggerOnChange is a bit confusing too, <Select triggerOnChange={false} /> makes me think that onChange will never be fired. I think setting flag in onSelect is a acceptable workaround.

[lgordey]

@yesmeck in issue there was an option to call it selectTriggersOnChange.
No problem to rename it.

And it will be true by default. So developers will need to redefine it only if necessary.
Most will not even notice, but the mechanics will become more flexible

Setting flag looks like a hack.

[yesmeck]

@RaoHai Can we expose onSearch in AutoComplete? onSearch doesn't fire after onSelect.

[yesmeck]

Oh, onSearch can be used in AutoComplete directly, the only thing need to do is document it in AutoComplete's page.

@lgordey Could you try onSearch to see if it's satisfy your need?

[yesmeck]

Use onSearch instead of onChange.