From a17b76ac75f506f5da6fe8adf9c36632b60d4226 Mon Sep 17 00:00:00 2001
From: Jules Laplace <julescarbon@gmail.com>
Date: Sat, 26 Sep 2020 14:56:02 +0200
Subject: refactor to use app-rooted js imports

---
 frontend/app/common/slider.component.js | 120 ++++++++++++++++++++++++++++++++
 1 file changed, 120 insertions(+)
 create mode 100644 frontend/app/common/slider.component.js

(limited to 'frontend/app/common/slider.component.js')

diff --git a/frontend/app/common/slider.component.js b/frontend/app/common/slider.component.js
new file mode 100644
index 0000000..9d96b1e
--- /dev/null
+++ b/frontend/app/common/slider.component.js
@@ -0,0 +1,120 @@
+import React, { Component } from 'react'
+import { default as throttle } from 'lodash.throttle'
+
+const SLIDER_THROTTLE_TIME = 1000 / 30
+
+export default class Slider extends Component {
+  state = {
+    value: 0
+  }
+
+  constructor(props){
+    super(props)
+    this.timeout = 0
+    this.handleInput = this.handleInput.bind(this)
+    this.handleRange = this.handleRange.bind(this)
+    this.handleKeyDown = this.handleKeyDown.bind(this)
+    this.onChange = throttle(props.onChange, SLIDER_THROTTLE_TIME)
+  }
+  componentDidMount() {
+    let { value } = this.props
+    if (this.props.type === 'int') {
+      value = parseInt(value)
+    }
+    this.setState({ value })
+  }
+  componentDidUpdate(prevProps) {
+    let { value } = this.props
+    if (prevProps.value !== value) {
+      if (this.props.type === 'int') {
+        value = parseInt(value)
+      }
+      this.setState({ value })
+    }
+  }
+  handleInput(e){
+    let { name } = this.props
+    let new_value = e.target.value
+    if (new_value === '') {
+      new_value = this.props.defaultValue || (this.props.max - this.props.min) / 2
+    }
+    else if (this.props.type === 'int') {
+      new_value = parseInt(new_value)
+    }
+    else if (this.props.type === 'odd') {
+      new_value = parseInt(Math.floor(new_value / 2) * 2 + 1)
+    }
+    else {
+      new_value = parseFloat(new_value)
+    }
+    if (this.state.value !== new_value) {
+      this.setState({ value: new_value })
+      this.props.onChange(this.props.name, new_value)
+    }
+  }
+  handleKeyDown(e) {
+    console.log(e.keyCode)
+  }
+  handleRange(e){
+    let { value: new_value } = e.target
+    if (this.props.type === 'int') {
+      new_value = parseInt(new_value)
+    }
+    else if (this.props.type === 'odd') {
+      new_value = parseInt(Math.floor(new_value / 2) * 2 + 1)
+    }
+    else if (this.props.type === 'list') {
+      new_value = this.props.options[new_value] || this.props.options[0]
+    }
+    else {
+      new_value = parseFloat(new_value)
+    }
+    this.setState({ value: new_value })
+    this.onChange(this.props.name, new_value)
+  }
+  render(){
+    let { name, title } = this.props
+    let value = this.state.value
+    if (typeof value === 'undefined') {
+      value = this.props.min
+    }
+    let text_value = value
+    let step;
+    let min = this.props.min || 0
+    let max = this.props.max || 0
+    if (this.props.type === 'int') {
+      step = 1
+    } else if (this.props.type === 'list') {
+      min = 0
+      max = this.props.options.length - 1
+      step = 1
+      value = this.props.options.indexOf(value)
+    } else {
+      step = (this.props.max - this.props.min) / 100
+      text_value = parseFloat(value).toFixed(2)
+    }
+    return (
+      <label className={this.props.error ? 'slider error' : 'slider'}>
+        <span>{title}</span>
+        <input
+          type='number'
+          min={min}
+          max={max}
+          step={step}
+          value={text_value}
+          onKeyDown={this.handleKeyDown}
+          onChange={this.handleInput}
+          onBlur={this.handleInput}
+        />
+        <input
+          type='range'
+          min={min}
+          max={max}
+          step={step}
+          value={value}
+          onChange={this.handleRange}
+        />
+      </label>
+    )
+  }
+}
-- 
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