app: Fonctionnalisation composant TermInput

app/App.js

@@ -1,12 +1,17 @@
-import React from 'react';
+import React, {useState} from 'react';
 import TermInput from './TermInput.js';
 import ResultsGraph from './ResultsGraph.js';
 
-const App = () => (
+const App = () =>
+{
+    const [terms, setTerms] = useState([]);
+
+    return (
         <div className="App">
-        <TermInput />
+            <TermInput terms={terms} setTerms={setTerms} />
             <ResultsGraph />
         </div>
     );
+};
 
 export default App;

app/TermInput.js

@@ -1,32 +1,53 @@
-import React from 'react';
+import React, {useState} from 'react';
 
-class TermInput extends React.Component
+const enterKey = 13;
+
+const TermInput = ({terms, setTerms}) =>
 {
-    constructor(props)
+    const [value, setValue] = useState('');
+
+    const handleKeyDown = ev =>
     {
-        super(props);
-        this.state = { input: '' };
-        this.handleInputChange = this.handleInputChange.bind(this);
+        if (ev.keyCode === enterKey)
+        {
+            ev.preventDefault();
+
+            if (!terms.includes(value))
+            {
+                setTerms(terms.concat([value]));
             }
 
-    handleInputChange(ev)
-    {
-        this.setState({
-            input: ev.target.value
-        });
+            setValue('');
         }
+    };
 
-    render()
+    const handleChange = ev =>
     {
+        setValue(ev.target.value);
+    };
+
+    const handleRemove = removedTerm =>
+    {
+        console.log(removedTerm);
+        console.log(terms);
+        setTerms(terms.filter(term => term !== removedTerm));
+    };
+
     return (
         <div className="TermInput">
-                <input type="text"
-                    className="TermInput_input"
-                    value={this.state.input}
-                    onChange={this.handleInputChange} />
+            {terms.map(term => 
+                <span
+                    className="TermInput_term"
+                    onClick={handleRemove.bind(null, term)}
+                >{term}</span>
+            )}
+            <input
+                autofocus="true" type="text" className="TermInput_input"
+                placeholder="Rechercher un symptôme, un signe ou une maladie…"
+                value={value}
+                onChange={handleChange} onKeyDown={handleKeyDown} />
         </div>
     );
 }
-}
 
 export default TermInput;

app/style/style.css

@@ -1,7 +1,18 @@
 :root
 {
+    --color-accent: #D80C49;
+    --color-secondary: #AE1246;
+    --color-light: #EEEEEE;
+    --color-dark: #1D1D1D;
+
     --font-family: 'Source Sans Pro';
     --font-size: 18px;
+    --font-color: var(--color-dark);
+
+    --base-size: 25px;
+
+    --animation-ease-out: cubic-bezier(0.075, 0.82, 0.165, 1);
+    --animation-short: .3s;
 }
 
 body, html
@@ -11,8 +22,12 @@ body, html
     outline: 0;
     height: 100%;
 
+    background-color: var(--color-light);
+
     font-family: var(--font-family);
     font-size: var(--font-size);
+    line-height: var(--base-size);
+    color: var(--font-color);
 }
 
 body, html, #root
@@ -25,6 +40,9 @@ input
 {
     font-family: var(--font-family);
     font-size: var(--font-size);
+
+    padding: 0 calc(.6 * var(--base-size));
+    height: calc(2 * var(--base-size));
 }
 
 *, *::before, *::after
@@ -32,48 +50,89 @@ input
     box-sizing: border-box;
 }
 
+/**
+ * App
+ */
+
 .App
 {
     width: 100%;
     height: 100%;
 }
 
-.TermInput
+.App .TermInput
 {
     position: absolute;
     z-index: 2;
 
-    top: 32px;
+    width: 600px;
+
+    top: calc(2 * var(--base-size));
     left: 50%;
     transform: translateX(-50%);
+}
 
-    border: 2px solid #333333;
+/**
+ * TermInput
+ */
+
+.TermInput
+{
     display: flex;
+    align-items: center;
+
+    border: 2px solid var(--color-dark);
+    border-radius: 2px;
+    background: white;
+
+    transition: box-shadow var(--animation-short) var(--animation-ease-out);
 }
 
 .TermInput:focus-within
 {
-    outline: 2px solid #333333;
+    box-shadow:
+        -1px -1px 0px var(--color-dark),
+        1px -1px 0px var(--color-dark),
+        1px 1px 0px var(--color-dark),
+        -1px 1px 0px var(--color-dark);
+}
+
+.TermInput_term
+{
+    display: inline-block;
+    background: var(--color-secondary);
+    color: var(--color-light);
+
+    border-radius: 2px;
+    padding: calc(.2 * var(--base-size));
+    margin-left: calc(.3 * var(--base-size));
+    cursor: pointer;
+
+    transition: background var(--animation-short) var(--animation-ease-out);
+}
+
+.TermInput_term:hover
+{
+    background: var(--color-accent);
 }
 
 .TermInput_input
 {
     flex: 1;
-    padding: 6px 12px;
     border: none;
-    width: 600px;
 }
 
-.ResultsGraph, .ResultsGraph div, .ResultsGraph svg
-{
-    width: 100%;
-    height: 100%;
-}
+/**
+ * Graph
+ */
 
 .Graph
 {
     position: relative;
     display: block;
+    width: 100%;
+    height: 100%;
+
     overflow: hidden;
     user-select: none;
 }
@@ -91,7 +150,7 @@ input
 
 .Graph_edgesContainer line
 {
-    stroke: black;
+    stroke: var(--color-dark);
 }
 
 .Graph_node