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react-inline-predict

v2.0.1

Published

A simple and customizable React component to show inline predictive text based on user input and a dictionary.

Downloads

48

Readme

react-inline-predict

A simple and customizable React component to show inline predictive text based on user input and a dictionary.

Example

  • Start writing to see suggestions
  • Use Tab or Enter to autocomplete
  • Use Up and Down arrows to navigate suggestions

Installation

To install, you can use npm:

$ npm install --save react-inline-predict

Usage

The component is inserted in place of your normal [Input] field, passing all the props that you would normally pass.

  • type
  • name
  • placeholder
  • onChange
  • onKeyPress
  • ...

Example:

<InputPredict
  type="text"
  name="name"
  placeholder="colorname"
  onValueChange={this.handleNameInputChange} />

When the user input changes, the function passed as onValueChange prop is called, with the arguments being value and match, match is true when the user value matches one of the values in the dictionary.

<InputPredict
  type="text"
  name="name"
  placeholder="colorname"
  onValueChange={this.handleChange} />
...
handleChange(value, match) {
  // value: holds the user input value
  // match: whether the value matches one the values in the dictionary/suggestion
  if (match) {
    fetchSomething(value);
  }
}

To Enable the prediction, you'll have to pass one of two additional props; dictionary or suggestion.

Using an Array

If you pass an array to the component through the prop dictionary, the component will search through the array to find the best matches starting with the user's input.

<InputPredict
  type="text"
  name="name"
  placeholder="colorname"
  onValueChange={this.handleChange}
  dictionary={["kiwi", "oranges", "watermelon", "pineapple"]} />

Manually

If you want to handle the prediction in any other way, via an API, or in a particular way, you can process the user's input using the onChange hook, and then pass the prediction through the prop suggestion

handleChange(value, match) {
  if (!match) {
    const prediction = getPredicitionByAnyMeansNecessary(value);
    this.setState({prediction: prediction});
  }
}
...
<InputPredict
  type="text"
  name="name"
  placeholder="colorname"
  onValueChange={this.handleChange}
  suggestion={this.state.prediction} />

Styles

Styles can be passed inline through the two props inputStyle and suggestionStyle.

<InputPredict
  type="text"
  name="name"
  placeholder="colorname"
  onValueChange={this.handleChange}
  suggestion={this.state.prediction}
  inputStyle={{ color: "darkgrey" /* Style for the text input field*/ }}
  suggestionStyle={{ color: "lightgrey" /*Style for the suggestion text field*/ }} />

Alternatively, you can add css properties to the classes used internally by the component;

.input-predict-container {
  font-family: "Raleway";
}

.input-predict-input {
  color: black;
}

.input-predict-suggestion {
  color: lightgrey;
}

Keep in mind that there are default styles that are important for the functionality of the component, and passing the styles inline via props overrides that.

// Default Styles
inputStyle = {
  background: "transparent",
  zIndex: "0"
},
suggestionStyle = {
  position: "absolute",
  top: "0",
  background: "transparent",
  zIndex: "-1"
}

Notes

This component is completely isomorphic; it's perfectly safe to use with server-side rendering.

API Change

For users up to version 1.1.2, you'll now have to use prop onValueChange to hook into user input changes, as onChange will no longer register value changes when the user presses Tab or Enter.

Websites Using This

  • https://colorpicky.com/