mirror of https://github.com/status-im/reagent.git
66 lines
2.4 KiB
Markdown
66 lines
2.4 KiB
Markdown
# Material-UI
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[Example project](../../examples/material-ui/)
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Material-UI [TextField](https://material-ui.com/api/text-field/) has for long
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time caused problems for Reagent users. The problem is that `TextField` wraps the
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`input` element inside a component so that Reagent is not able to enable
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input cursor fixes, which are required due to [async rendering](http://reagent-project.github.io/news/reagent-is-async.html).
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Good news is that Material-UI v1 has a property that can be used to provide
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the input component to `TextField`:
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```cljs
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(ns example.material-ui
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(:require ["material-ui" :as mui]
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[reagent.core :as r]))
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(def text-field (r/adapt-react-class mui/TextField))
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(def value (r/atom ""))
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(def input-component
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(r/reactify-component
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(fn [props]
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[:input (-> props
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(assoc :ref (:inputRef props))
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(dissoc :inputRef))])))
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(def example []
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[text-field
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{:value @value
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:on-change #(reset! value (.. e -target -value))
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:InputProps {:inputComponent input-component}}])
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```
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`reactify-component` can be used to convert Reagent component into React component,
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which can then be passed into Material-UI. The component should be created once
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(i.e. on top level) to ensure it is not unnecessarily redefined, causing the
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component to be re-mounted.
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For some reason Material-UI uses different name for `ref`, so the `inputRef` property
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should be renamed by the input component.
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## Wrapping for easy use
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Instead of providing `:InputProps :inputComponent` option to every `TextField`,
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it is useful to wrap the `TextField` component in a way that the option is added always:
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```cljs
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(defn text-field [props & children]
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(let [props (-> props
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(assoc-in [:InputProps :inputComponent] input-component)
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rtpl/convert-prop-value)]
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(apply r/create-element mui/TextField props (map r/as-element children))))
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```
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Here `r/create-element` and `reagent.impl.template/convert-prop-value` achieve
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the same as what `adapt-react-class` does, but allows modifying the props.
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**Check the example project for complete code.** Some additional logic is
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required to ensure option like `:multiline` and `:select` work correctly,
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as they affect how the `inputComponent` should work.
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TODO: `:multiline` `TextField` without `:rows` (i.e. automatic height) doesn't
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work, because that requires Material-UI `Input/Textarea`, which doesn't work
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with Reagent cursor fix.
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