From d8cb62601431a8dfb5e5cc8e6d0e03a3784a1f60 Mon Sep 17 00:00:00 2001
From: jfgiraud <jfgiraud@giraud-finance.com>
Date: Fri, 21 Aug 2026 11:42:22 +0200
Subject: [PATCH] calculatrice js V1.0

---
 README.md       |   0
 calculatrice.js | 146 ++++++++++++++++++++++++++++++++++++++++++++++++
 index.html      |  26 +++++++++
 3 files changed, 172 insertions(+)
 create mode 100644 README.md

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..e69de29
diff --git a/calculatrice.js b/calculatrice.js
index e69de29..38ea3d4 100644
--- a/calculatrice.js
+++ b/calculatrice.js
@@ -0,0 +1,146 @@
+class SimpleCalculator {
+  constructor(containerId) {
+    this.container = document.getElementById(containerId);
+    if (!this.container) return;
+    this.currentInput = "0";
+    this.previousInput = "";
+    this.operation = null;
+    this.init();
+  }
+
+  init() {
+    this.container.innerHTML = `
+      <div class="w-72 bg-slate-800 p-4 rounded-2xl shadow-xl select-none text-slate-100">
+        <!-- Écran avec une hauteur fixe (min-h) pour éviter qu'il ne rétrécisse -->
+        <div id="calc-screen" class="bg-slate-900 text-right p-4 rounded-xl mb-4 text-2xl font-mono tracking-wider overflow-hidden min-h-[4rem] flex flex-col justify-center">
+          <div id="calc-prev" class="text-xs text-slate-400 h-4"></div>
+          <div id="calc-current">0</div>
+        </div>
+        <!-- Clavier -->
+        <div class="grid grid-cols-4 gap-2">
+          <button data-action="clear" class="col-span-2 bg-red-600 hover:bg-red-500 p-3 rounded-xl font-bold transition">AC</button>
+          <button data-action="delete" class="bg-slate-700 hover:bg-slate-600 p-3 rounded-xl font-bold transition">⌫</button>
+          <button data-action="operator" data-value="/" class="bg-amber-600 hover:bg-amber-500 p-3 rounded-xl font-bold transition">÷</button>
+          
+          <button data-action="number" data-value="7" class="bg-slate-700 hover:bg-slate-600 p-3 rounded-xl font-bold transition">7</button>
+          <button data-action="number" data-value="8" class="bg-slate-700 hover:bg-slate-600 p-3 rounded-xl font-bold transition">8</button>
+          <button data-action="number" data-value="9" class="bg-slate-700 hover:bg-slate-600 p-3 rounded-xl font-bold transition">9</button>
+          <button data-action="operator" data-value="*" class="bg-amber-600 hover:bg-amber-500 p-3 rounded-xl font-bold transition">×</button>
+          
+          <button data-action="number" data-value="4" class="bg-slate-700 hover:bg-slate-600 p-3 rounded-xl font-bold transition">4</button>
+          <button data-action="number" data-value="5" class="bg-slate-700 hover:bg-slate-600 p-3 rounded-xl font-bold transition">5</button>
+          <button data-action="number" data-value="6" class="bg-slate-700 hover:bg-slate-600 p-3 rounded-xl font-bold transition">6</button>
+          <button data-action="operator" data-value="-" class="bg-amber-600 hover:bg-amber-500 p-3 rounded-xl font-bold transition">-</button>
+          
+          <button data-action="number" data-value="1" class="bg-slate-700 hover:bg-slate-600 p-3 rounded-xl font-bold transition">1</button>
+          <button data-action="number" data-value="2" class="bg-slate-700 hover:bg-slate-600 p-3 rounded-xl font-bold transition">2</button>
+          <button data-action="number" data-value="3" class="bg-slate-700 hover:bg-slate-600 p-3 rounded-xl font-bold transition">3</button>
+          <button data-action="operator" data-value="+" class="bg-amber-600 hover:bg-amber-500 p-3 rounded-xl font-bold transition">+</button>
+          
+          <button data-action="number" data-value="0" class="col-span-2 bg-slate-700 hover:bg-slate-600 p-3 rounded-xl font-bold transition">0</button>
+          <button data-action="number" data-value="." class="bg-slate-700 hover:bg-slate-600 p-3 rounded-xl font-bold transition">.</button>
+          <button data-action="calculate" class="bg-emerald-600 hover:bg-emerald-500 p-3 rounded-xl font-bold transition">=</button>
+        </div>
+      </div>
+    `;
+
+    this.prevScreen = this.container.querySelector("#calc-prev");
+    this.currentScreen = this.container.querySelector("#calc-current");
+    this.addListeners();
+  }
+
+  addListeners() {
+    this.container.addEventListener("click", (e) => {
+      const button = e.target.closest("button");
+      if (!button) return;
+
+      const action = button.getAttribute("data-action");
+      const value = button.getAttribute("data-value");
+
+      if (action === "number") {
+        this.appendNumber(value);
+      } else if (action === "operator") {
+        this.chooseOperation(value);
+      } else if (action === "calculate") {
+        this.compute();
+      } else if (action === "clear") {
+        this.clear();
+      } else if (action === "delete") {
+        this.deleteDigit();
+      }
+
+      this.updateScreen();
+    });
+  }
+
+  appendNumber(number) {
+    if (number === "." && this.currentInput.includes(".")) return;
+    if (this.currentInput === "0" && number !== ".") {
+      this.currentInput = number;
+    } else {
+      this.currentInput += number;
+    }
+  }
+
+  chooseOperation(op) {
+    if (this.currentInput === "") return;
+    if (this.previousInput !== "") {
+      this.compute();
+    }
+    this.operation = op;
+    this.previousInput = this.currentInput;
+    this.currentInput = "";
+  }
+
+  compute() {
+    let computation;
+    const prev = parseFloat(this.previousInput);
+    const current = parseFloat(this.currentInput);
+    if (isNaN(prev) || isNaN(current)) return;
+
+    switch (this.operation) {
+      case "+":
+        computation = prev + current;
+        break;
+      case "-":
+        computation = prev - current;
+        break;
+      case "*":
+        computation = prev * current;
+        break;
+      case "/":
+        computation = current === 0 ? "Erreur" : prev / current;
+        break;
+      default:
+        return;
+    }
+
+    this.currentInput = computation.toString();
+    this.operation = null;
+    this.previousInput = "";
+  }
+
+  clear() {
+    this.currentInput = "0";
+    this.previousInput = "";
+    this.operation = null;
+  }
+
+  deleteDigit() {
+    if (this.currentInput.length === 1) {
+      this.currentInput = "0";
+    } else {
+      this.currentInput = this.currentInput.slice(0, -1);
+    }
+  }
+
+  updateScreen() {
+    this.currentScreen.innerText =
+      this.currentInput === "" ? "0" : this.currentInput;
+    if (this.operation != null) {
+      this.prevScreen.innerText = `${this.previousInput} ${this.operation}`;
+    } else {
+      this.prevScreen.innerText = "";
+    }
+  }
+}
diff --git a/index.html b/index.html
index e69de29..813edaf 100644
--- a/index.html
+++ b/index.html
@@ -0,0 +1,26 @@
+<!doctype html>
+<html lang="fr">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Calculatrice Autonome</title>
+    <!-- Tailwind CSS requis pour le style -->
+    <script src="https://cdn.tailwindcss.com"></script>
+  </head>
+  <body
+    class="bg-slate-900 text-slate-100 p-10 flex flex-col items-center justify-center min-h-screen"
+  >
+    <!-- Conteneur de la calculatrice -->
+    <div id="maCalculatrice"></div>
+
+    <!-- Chargement du script -->
+    <script src="./calculatrice.js"></script>
+
+    <!-- Initialisation -->
+    <script>
+      document.addEventListener("DOMContentLoaded", function () {
+        new SimpleCalculator("maCalculatrice");
+      });
+    </script>
+  </body>
+</html>