Ajout support WiFi 1-3, icônes officielles Wi-Fi Alliance et affichage par icône dans le panel

- Ajout des générations WiFi 1 (802.11b), 2 (802.11a) et 3 (802.11g) dans les types et la détection legacy (fréquence + débit)
- Remplacement des icônes SVG WiFi 4-7 par les PNG officiels Wi-Fi Alliance (reverse signature, blanc sur transparent)
- Conservation des icônes SVG custom pour WiFi 1-3 (non fournies par la Wi-Fi Alliance)
- Remplacement de St.Label par St.Icon dans le panel avec la classe system-status-icon pour un dimensionnement adaptatif
- Fallback sur St.Label texte quand aucune icône n'est disponible (génération inconnue)
- Mise à jour du build pour copier les icônes dans dist/

package.json

@@ -5,7 +5,7 @@
   "type": "module",
   "scripts": {
     "build": "tsc && npm run copy-assets",
-    "copy-assets": "cp metadata.json stylesheet.css dist/",
+    "copy-assets": "cp metadata.json stylesheet.css dist/ && cp -r src/icons dist/",
     "install-extension": "npm run build && rm -rf ~/.local/share/gnome-shell/extensions/wifi-signal-plus@music-music.music && cp -r dist ~/.local/share/gnome-shell/extensions/wifi-signal-plus@music-music.music",
     "nested": "npm run install-extension && MUTTER_DEBUG_DUMMY_MODE_SPECS=1920x1080 dbus-run-session gnome-shell --devkit --wayland",
     "watch": "tsc --watch",

src/extension.ts

@@ -5,6 +5,7 @@
  */
 
 import Clutter from 'gi://Clutter';
+import Gio from 'gi://Gio';
 import GLib from 'gi://GLib';
 import St from 'gi://St';
 import { Extension } from 'resource:///org/gnome/shell/extensions/extension.js';
@@ -24,6 +25,7 @@ import {
     GENERATION_CSS_CLASSES,
     getGenerationLabel,
     getGenerationDescription,
+    getGenerationIconFilename,
 } from './wifiGeneration.js';
 import type { GenerationCssClass, ChannelWidthMHz, SignalDbm } from './types.js';
 
@@ -69,6 +71,7 @@ const MENU_STRUCTURE: readonly MenuItemConfig[][] = [
 
 export default class WifiSignalPlusExtension extends Extension {
     private indicator: PanelMenu.Button | null = null;
+    private icon: St.Icon | null = null;
     private label: St.Label | null = null;
     private wifiService: WifiInfoService | null = null;
     private refreshTimeout: number | null = null;
@@ -95,6 +98,7 @@ export default class WifiSignalPlusExtension extends Extension {
 
         this.indicator = null;
         this.wifiService = null;
+        this.icon = null;
         this.label = null;
         this.menuItems.clear();
     }
@@ -103,12 +107,18 @@ export default class WifiSignalPlusExtension extends Extension {
         this.indicator = new PanelMenu.Button(0.0, this.metadata.name, false);
         this.indicator.add_style_class_name('wifi-signal-plus-indicator');
 
+        this.icon = new St.Icon({
+            style_class: 'system-status-icon',
+            y_align: Clutter.ActorAlign.CENTER,
+        });
+
         this.label = new St.Label({
             text: 'WiFi',
             y_align: Clutter.ActorAlign.CENTER,
             style_class: 'wifi-signal-plus-label',
         });
 
+        this.indicator.add_child(this.icon);
         this.indicator.add_child(this.label);
         this.buildMenu();
 
@@ -153,17 +163,31 @@ export default class WifiSignalPlusExtension extends Extension {
     }
 
     private updateIndicatorLabel(info: WifiConnectionInfo): void {
-        if (!this.label) return;
+        if (!this.icon || !this.label) return;
 
         this.clearGenerationStyles();
 
         if (!isConnected(info)) {
+            this.icon.visible = false;
+            this.label.visible = true;
             this.label.set_text('WiFi --');
             this.label.add_style_class_name(GENERATION_CSS_CLASSES[WIFI_GENERATIONS.UNKNOWN]);
             return;
         }
 
+        const iconFilename = getGenerationIconFilename(info.generation);
+        if (iconFilename) {
+            const iconPath = GLib.build_filenamev([this.path, 'icons', iconFilename]);
+            const file = Gio.File.new_for_path(iconPath);
+            this.icon.gicon = new Gio.FileIcon({ file });
+            this.icon.visible = true;
+            this.label.visible = false;
+        } else {
+            this.icon.visible = false;
+            this.label.visible = true;
             this.label.set_text(getGenerationLabel(info.generation));
+        }
+
         this.label.add_style_class_name(GENERATION_CSS_CLASSES[info.generation]);
     }
 

src/icons/wifi-1.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" shape-rendering="geometricPrecision" text-rendering="geometricPrecision" image-rendering="optimizeQuality" fill-rule="evenodd" clip-rule="evenodd" viewBox="0 0 512 351.257"><path fill="#2B2A29" d="M236.563 284.97c18.304 0 33.144 14.839 33.144 33.143 0 18.303-14.84 33.144-33.144 33.144-18.302 0-33.143-14.841-33.143-33.144 0-18.304 14.841-33.143 33.143-33.143zM29.48 117.684c-7.496 6.414-18.774 5.537-25.188-1.959-6.415-7.496-5.538-18.774 1.958-25.189C76.588 30.265 156.239-.682 236.97.012c78.728.675 157.969 31.439 230.049 94.426a17.777 17.777 0 014.839 6.842c-23.099-15.127-50.711-23.935-80.38-23.935-2.837 0-5.655.09-8.451.248-47.7-27.728-97.255-41.476-146.339-41.898-71.983-.617-143.514 27.41-207.208 81.989zm66.973 71.863c-7.379 6.53-18.66 5.841-25.189-1.538-6.53-7.38-5.841-18.66 1.538-25.189 52.587-46.528 108.414-70.31 165.08-69.359 22.193.374 44.361 4.531 66.356 12.588a147.915 147.915 0 00-28.978 28.332c-12.678-3.288-25.336-5.025-37.937-5.236-47.456-.797-95.11 19.913-140.87 60.402zm63.574 63.823c-7.652 6.221-18.898 5.062-25.12-2.59-6.221-7.651-5.062-18.898 2.59-25.119 31.156-25.297 64.978-38.468 99.403-38.57 4.086-.011 8.171.163 12.254.52-2.917 11.341-4.501 23.214-4.602 35.442a98.454 98.454 0 00-7.652-.278c-25.994.076-52.155 10.524-76.873 30.595z"/><path fill="#2B2A29" d="M391.477 103.761c66.558 0 120.523 53.965 120.523 120.525 0 66.558-53.965 120.522-120.523 120.522-66.56 0-120.524-53.964-120.524-120.522 0-66.56 53.964-120.525 120.524-120.525z"/><text x="391" y="232" font-family="Arial,Helvetica,sans-serif" font-size="235" font-weight="bold" fill="#fff" text-anchor="middle" dominant-baseline="central">1</text></svg>

src/icons/wifi-2.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" shape-rendering="geometricPrecision" text-rendering="geometricPrecision" image-rendering="optimizeQuality" fill-rule="evenodd" clip-rule="evenodd" viewBox="0 0 512 351.257"><path fill="#2B2A29" d="M236.563 284.97c18.304 0 33.144 14.839 33.144 33.143 0 18.303-14.84 33.144-33.144 33.144-18.302 0-33.143-14.841-33.143-33.144 0-18.304 14.841-33.143 33.143-33.143zM29.48 117.684c-7.496 6.414-18.774 5.537-25.188-1.959-6.415-7.496-5.538-18.774 1.958-25.189C76.588 30.265 156.239-.682 236.97.012c78.728.675 157.969 31.439 230.049 94.426a17.777 17.777 0 014.839 6.842c-23.099-15.127-50.711-23.935-80.38-23.935-2.837 0-5.655.09-8.451.248-47.7-27.728-97.255-41.476-146.339-41.898-71.983-.617-143.514 27.41-207.208 81.989zm66.973 71.863c-7.379 6.53-18.66 5.841-25.189-1.538-6.53-7.38-5.841-18.66 1.538-25.189 52.587-46.528 108.414-70.31 165.08-69.359 22.193.374 44.361 4.531 66.356 12.588a147.915 147.915 0 00-28.978 28.332c-12.678-3.288-25.336-5.025-37.937-5.236-47.456-.797-95.11 19.913-140.87 60.402zm63.574 63.823c-7.652 6.221-18.898 5.062-25.12-2.59-6.221-7.651-5.062-18.898 2.59-25.119 31.156-25.297 64.978-38.468 99.403-38.57 4.086-.011 8.171.163 12.254.52-2.917 11.341-4.501 23.214-4.602 35.442a98.454 98.454 0 00-7.652-.278c-25.994.076-52.155 10.524-76.873 30.595z"/><path fill="#2B2A29" d="M391.477 103.761c66.558 0 120.523 53.965 120.523 120.525 0 66.558-53.965 120.522-120.523 120.522-66.56 0-120.524-53.964-120.524-120.522 0-66.56 53.964-120.525 120.524-120.525z"/><text x="391" y="232" font-family="Arial,Helvetica,sans-serif" font-size="235" font-weight="bold" fill="#fff" text-anchor="middle" dominant-baseline="central">2</text></svg>

src/icons/wifi-3.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" shape-rendering="geometricPrecision" text-rendering="geometricPrecision" image-rendering="optimizeQuality" fill-rule="evenodd" clip-rule="evenodd" viewBox="0 0 512 351.257"><path fill="#2B2A29" d="M236.563 284.97c18.304 0 33.144 14.839 33.144 33.143 0 18.303-14.84 33.144-33.144 33.144-18.302 0-33.143-14.841-33.143-33.144 0-18.304 14.841-33.143 33.143-33.143zM29.48 117.684c-7.496 6.414-18.774 5.537-25.188-1.959-6.415-7.496-5.538-18.774 1.958-25.189C76.588 30.265 156.239-.682 236.97.012c78.728.675 157.969 31.439 230.049 94.426a17.777 17.777 0 014.839 6.842c-23.099-15.127-50.711-23.935-80.38-23.935-2.837 0-5.655.09-8.451.248-47.7-27.728-97.255-41.476-146.339-41.898-71.983-.617-143.514 27.41-207.208 81.989zm66.973 71.863c-7.379 6.53-18.66 5.841-25.189-1.538-6.53-7.38-5.841-18.66 1.538-25.189 52.587-46.528 108.414-70.31 165.08-69.359 22.193.374 44.361 4.531 66.356 12.588a147.915 147.915 0 00-28.978 28.332c-12.678-3.288-25.336-5.025-37.937-5.236-47.456-.797-95.11 19.913-140.87 60.402zm63.574 63.823c-7.652 6.221-18.898 5.062-25.12-2.59-6.221-7.651-5.062-18.898 2.59-25.119 31.156-25.297 64.978-38.468 99.403-38.57 4.086-.011 8.171.163 12.254.52-2.917 11.341-4.501 23.214-4.602 35.442a98.454 98.454 0 00-7.652-.278c-25.994.076-52.155 10.524-76.873 30.595z"/><path fill="#2B2A29" d="M391.477 103.761c66.558 0 120.523 53.965 120.523 120.525 0 66.558-53.965 120.522-120.523 120.522-66.56 0-120.524-53.964-120.524-120.522 0-66.56 53.964-120.525 120.524-120.525z"/><text x="391" y="232" font-family="Arial,Helvetica,sans-serif" font-size="235" font-weight="bold" fill="#fff" text-anchor="middle" dominant-baseline="central">3</text></svg>

src/types.ts

@@ -17,6 +17,9 @@ export type GuardIntervalUs = Brand<number, 'GuardIntervalUs'>;
 
 export const WIFI_GENERATIONS = {
     UNKNOWN: 0,
+    WIFI_1: 1,
+    WIFI_2: 2,
+    WIFI_3: 3,
     WIFI_4: 4,
     WIFI_5: 5,
     WIFI_6: 6,
@@ -25,11 +28,14 @@ export const WIFI_GENERATIONS = {
 
 export type WifiGeneration = (typeof WIFI_GENERATIONS)[keyof typeof WIFI_GENERATIONS];
 
-export function isKnownGeneration(gen: WifiGeneration): gen is 4 | 5 | 6 | 7 {
+export function isKnownGeneration(gen: WifiGeneration): gen is 1 | 2 | 3 | 4 | 5 | 6 | 7 {
-    return gen >= WIFI_GENERATIONS.WIFI_4 && gen <= WIFI_GENERATIONS.WIFI_7;
+    return gen >= WIFI_GENERATIONS.WIFI_1 && gen <= WIFI_GENERATIONS.WIFI_7;
 }
 
 export const IEEE_STANDARDS = {
+    [WIFI_GENERATIONS.WIFI_1]: '802.11b',
+    [WIFI_GENERATIONS.WIFI_2]: '802.11a',
+    [WIFI_GENERATIONS.WIFI_3]: '802.11g',
     [WIFI_GENERATIONS.WIFI_4]: '802.11n',
     [WIFI_GENERATIONS.WIFI_5]: '802.11ac',
     [WIFI_GENERATIONS.WIFI_6]: '802.11ax',
@@ -64,10 +70,13 @@ export const SECURITY_PROTOCOLS = [
 
 export type SecurityProtocol = (typeof SECURITY_PROTOCOLS)[number];
 
-export type GenerationCssClass = `wifi-gen-${4 | 5 | 6 | 7}` | 'wifi-disconnected';
+export type GenerationCssClass = `wifi-gen-${1 | 2 | 3 | 4 | 5 | 6 | 7}` | 'wifi-disconnected';
 export type SignalCssClass = `wifi-signal-${Lowercase<Exclude<SignalQuality, 'Unknown'>>}` | '';
 
 export const GENERATION_CSS_CLASSES = {
+    [WIFI_GENERATIONS.WIFI_1]: 'wifi-gen-1',
+    [WIFI_GENERATIONS.WIFI_2]: 'wifi-gen-2',
+    [WIFI_GENERATIONS.WIFI_3]: 'wifi-gen-3',
     [WIFI_GENERATIONS.WIFI_4]: 'wifi-gen-4',
     [WIFI_GENERATIONS.WIFI_5]: 'wifi-gen-5',
     [WIFI_GENERATIONS.WIFI_6]: 'wifi-gen-6',

src/wifiGeneration.test.ts

@@ -7,6 +7,7 @@ import {
     GENERATION_CSS_CLASSES,
     getGenerationLabel,
     getGenerationDescription,
+    getGenerationIconFilename,
     isKnownGeneration,
 } from './wifiGeneration';
 import { GUARD_INTERVALS } from './types';
@@ -37,6 +38,9 @@ describe('createEmptyIwLinkInfo', () => {
 
 describe('isKnownGeneration', () => {
     it('should return true for known generations', () => {
+        expect(isKnownGeneration(WIFI_GENERATIONS.WIFI_1)).toBe(true);
+        expect(isKnownGeneration(WIFI_GENERATIONS.WIFI_2)).toBe(true);
+        expect(isKnownGeneration(WIFI_GENERATIONS.WIFI_3)).toBe(true);
         expect(isKnownGeneration(WIFI_GENERATIONS.WIFI_4)).toBe(true);
         expect(isKnownGeneration(WIFI_GENERATIONS.WIFI_5)).toBe(true);
         expect(isKnownGeneration(WIFI_GENERATIONS.WIFI_6)).toBe(true);
@@ -226,8 +230,118 @@ describe('parseIwLinkOutput', () => {
     });
 });
 
+describe('legacy WiFi detection', () => {
+    describe('WiFi 2 (802.11a) - 5 GHz legacy', () => {
+        it('should detect WiFi 2 for 5 GHz without generation markers', () => {
+            const iwOutput = `Connected to aa:bb:cc:dd:ee:ff (on wlan0)
+	SSID: LegacyNetwork
+	freq: 5180
+	signal: -60 dBm
+	tx bitrate: 54.0 MBit/s
+	rx bitrate: 48.0 MBit/s`;
+
+            const result = parseIwLinkOutput(iwOutput);
+
+            expect(result.generation).toBe(WIFI_GENERATIONS.WIFI_2);
+            expect(result.standard).toBe('802.11a');
+        });
+    });
+
+    describe('WiFi 1 (802.11b) - 2.4 GHz low bitrate', () => {
+        it('should detect WiFi 1 for 2.4 GHz with bitrate <= 11 Mbps', () => {
+            const iwOutput = `Connected to aa:bb:cc:dd:ee:ff (on wlan0)
+	SSID: VeryOldNetwork
+	freq: 2437
+	signal: -70 dBm
+	tx bitrate: 11.0 MBit/s
+	rx bitrate: 5.5 MBit/s`;
+
+            const result = parseIwLinkOutput(iwOutput);
+
+            expect(result.generation).toBe(WIFI_GENERATIONS.WIFI_1);
+            expect(result.standard).toBe('802.11b');
+        });
+
+        it('should detect WiFi 1 for 2.4 GHz with 1 Mbps bitrate', () => {
+            const iwOutput = `Connected to aa:bb:cc:dd:ee:ff (on wlan0)
+	freq: 2412
+	signal: -80 dBm
+	tx bitrate: 1.0 MBit/s`;
+
+            const result = parseIwLinkOutput(iwOutput);
+
+            expect(result.generation).toBe(WIFI_GENERATIONS.WIFI_1);
+        });
+    });
+
+    describe('WiFi 3 (802.11g) - 2.4 GHz high bitrate', () => {
+        it('should detect WiFi 3 for 2.4 GHz with bitrate > 11 Mbps', () => {
+            const iwOutput = `Connected to aa:bb:cc:dd:ee:ff (on wlan0)
+	SSID: OlderNetwork
+	freq: 2437
+	signal: -55 dBm
+	tx bitrate: 54.0 MBit/s
+	rx bitrate: 36.0 MBit/s`;
+
+            const result = parseIwLinkOutput(iwOutput);
+
+            expect(result.generation).toBe(WIFI_GENERATIONS.WIFI_3);
+            expect(result.standard).toBe('802.11g');
+        });
+
+        it('should detect WiFi 3 for 2.4 GHz with 12 Mbps bitrate', () => {
+            const iwOutput = `Connected to aa:bb:cc:dd:ee:ff (on wlan0)
+	freq: 2462
+	signal: -65 dBm
+	tx bitrate: 12.0 MBit/s`;
+
+            const result = parseIwLinkOutput(iwOutput);
+
+            expect(result.generation).toBe(WIFI_GENERATIONS.WIFI_3);
+        });
+    });
+
+    describe('no legacy detection when generation already known', () => {
+        it('should not override WiFi 4 detection with legacy', () => {
+            const iwOutput = `Connected to aa:bb:cc:dd:ee:ff (on wlan0)
+	freq: 2437
+	signal: -65 dBm
+	tx bitrate: 72.2 MBit/s MCS 7 20MHz short GI`;
+
+            const result = parseIwLinkOutput(iwOutput);
+
+            expect(result.generation).toBe(WIFI_GENERATIONS.WIFI_4);
+        });
+    });
+
+    describe('no legacy detection without enough info', () => {
+        it('should remain UNKNOWN without frequency', () => {
+            const iwOutput = `Connected to aa:bb:cc:dd:ee:ff (on wlan0)
+	signal: -65 dBm
+	tx bitrate: 54.0 MBit/s`;
+
+            const result = parseIwLinkOutput(iwOutput);
+
+            expect(result.generation).toBe(WIFI_GENERATIONS.UNKNOWN);
+        });
+
+        it('should remain UNKNOWN without bitrate on 2.4 GHz', () => {
+            const iwOutput = `Connected to aa:bb:cc:dd:ee:ff (on wlan0)
+	freq: 2437
+	signal: -65 dBm`;
+
+            const result = parseIwLinkOutput(iwOutput);
+
+            expect(result.generation).toBe(WIFI_GENERATIONS.UNKNOWN);
+        });
+    });
+});
+
 describe('getGenerationLabel', () => {
     it('should return "WiFi X" for known generations', () => {
+        expect(getGenerationLabel(WIFI_GENERATIONS.WIFI_1)).toBe('WiFi 1');
+        expect(getGenerationLabel(WIFI_GENERATIONS.WIFI_2)).toBe('WiFi 2');
+        expect(getGenerationLabel(WIFI_GENERATIONS.WIFI_3)).toBe('WiFi 3');
         expect(getGenerationLabel(WIFI_GENERATIONS.WIFI_4)).toBe('WiFi 4');
         expect(getGenerationLabel(WIFI_GENERATIONS.WIFI_5)).toBe('WiFi 5');
         expect(getGenerationLabel(WIFI_GENERATIONS.WIFI_6)).toBe('WiFi 6');
@@ -241,6 +355,9 @@ describe('getGenerationLabel', () => {
 
 describe('getGenerationDescription', () => {
     it('should return full description with IEEE standard', () => {
+        expect(getGenerationDescription(WIFI_GENERATIONS.WIFI_1)).toBe('WiFi 1 (802.11b)');
+        expect(getGenerationDescription(WIFI_GENERATIONS.WIFI_2)).toBe('WiFi 2 (802.11a)');
+        expect(getGenerationDescription(WIFI_GENERATIONS.WIFI_3)).toBe('WiFi 3 (802.11g)');
         expect(getGenerationDescription(WIFI_GENERATIONS.WIFI_4)).toBe('WiFi 4 (802.11n)');
         expect(getGenerationDescription(WIFI_GENERATIONS.WIFI_5)).toBe('WiFi 5 (802.11ac)');
         expect(getGenerationDescription(WIFI_GENERATIONS.WIFI_6)).toBe('WiFi 6 (802.11ax)');
@@ -252,8 +369,30 @@ describe('getGenerationDescription', () => {
     });
 });
 
+describe('getGenerationIconFilename', () => {
+    it('should return PNG filename for WiFi 4-7', () => {
+        expect(getGenerationIconFilename(WIFI_GENERATIONS.WIFI_4)).toBe('wifi-4.png');
+        expect(getGenerationIconFilename(WIFI_GENERATIONS.WIFI_5)).toBe('wifi-5.png');
+        expect(getGenerationIconFilename(WIFI_GENERATIONS.WIFI_6)).toBe('wifi-6.png');
+        expect(getGenerationIconFilename(WIFI_GENERATIONS.WIFI_7)).toBe('wifi-7.png');
+    });
+
+    it('should return SVG filename for WiFi 1-3', () => {
+        expect(getGenerationIconFilename(WIFI_GENERATIONS.WIFI_1)).toBe('wifi-1.svg');
+        expect(getGenerationIconFilename(WIFI_GENERATIONS.WIFI_2)).toBe('wifi-2.svg');
+        expect(getGenerationIconFilename(WIFI_GENERATIONS.WIFI_3)).toBe('wifi-3.svg');
+    });
+
+    it('should return null for UNKNOWN', () => {
+        expect(getGenerationIconFilename(WIFI_GENERATIONS.UNKNOWN)).toBeNull();
+    });
+});
+
 describe('IEEE_STANDARDS', () => {
     it('should map all generations to their IEEE standards', () => {
+        expect(IEEE_STANDARDS[WIFI_GENERATIONS.WIFI_1]).toBe('802.11b');
+        expect(IEEE_STANDARDS[WIFI_GENERATIONS.WIFI_2]).toBe('802.11a');
+        expect(IEEE_STANDARDS[WIFI_GENERATIONS.WIFI_3]).toBe('802.11g');
         expect(IEEE_STANDARDS[WIFI_GENERATIONS.WIFI_4]).toBe('802.11n');
         expect(IEEE_STANDARDS[WIFI_GENERATIONS.WIFI_5]).toBe('802.11ac');
         expect(IEEE_STANDARDS[WIFI_GENERATIONS.WIFI_6]).toBe('802.11ax');
@@ -264,6 +403,9 @@ describe('IEEE_STANDARDS', () => {
 
 describe('GENERATION_CSS_CLASSES', () => {
     it('should map all generations to CSS classes', () => {
+        expect(GENERATION_CSS_CLASSES[WIFI_GENERATIONS.WIFI_1]).toBe('wifi-gen-1');
+        expect(GENERATION_CSS_CLASSES[WIFI_GENERATIONS.WIFI_2]).toBe('wifi-gen-2');
+        expect(GENERATION_CSS_CLASSES[WIFI_GENERATIONS.WIFI_3]).toBe('wifi-gen-3');
         expect(GENERATION_CSS_CLASSES[WIFI_GENERATIONS.WIFI_4]).toBe('wifi-gen-4');
         expect(GENERATION_CSS_CLASSES[WIFI_GENERATIONS.WIFI_5]).toBe('wifi-gen-5');
         expect(GENERATION_CSS_CLASSES[WIFI_GENERATIONS.WIFI_6]).toBe('wifi-gen-6');
@@ -272,8 +414,10 @@ describe('GENERATION_CSS_CLASSES', () => {
     });
 
     it('should use template literal type pattern', () => {
-        // Type check: all values should match the GenerationCssClass type
         const classes = Object.values(GENERATION_CSS_CLASSES);
+        expect(classes).toContain('wifi-gen-1');
+        expect(classes).toContain('wifi-gen-2');
+        expect(classes).toContain('wifi-gen-3');
         expect(classes).toContain('wifi-gen-4');
         expect(classes).toContain('wifi-gen-5');
         expect(classes).toContain('wifi-gen-6');

src/wifiGeneration.ts

@@ -81,6 +81,8 @@ export function parseIwLinkOutput(iwOutput: string): IwLinkInfo {
         parseLine(line.trim(), result);
     }
 
+    detectLegacyGeneration(result);
+
     return freezeResult(result);
 }
 
@@ -101,6 +103,28 @@ function createMutableResult(): MutableParseResult {
     };
 }
 
+const WIFI_1_MAX_BITRATE = 11;
+const FREQ_5GHZ_START = 5000;
+
+function detectLegacyGeneration(result: MutableParseResult): void {
+    if (result.generation !== WIFI_GENERATIONS.UNKNOWN) return;
+    if (result.frequency === null) return;
+
+    if (result.frequency >= FREQ_5GHZ_START) {
+        result.generation = WIFI_GENERATIONS.WIFI_2;
+        return;
+    }
+
+    const maxBitrate = Math.max(
+        (result.txBitrate as number | null) ?? 0,
+        (result.rxBitrate as number | null) ?? 0
+    );
+    if (maxBitrate === 0) return;
+
+    result.generation =
+        maxBitrate <= WIFI_1_MAX_BITRATE ? WIFI_GENERATIONS.WIFI_1 : WIFI_GENERATIONS.WIFI_3;
+}
+
 function freezeResult(result: MutableParseResult): IwLinkInfo {
     if (isKnownGeneration(result.generation)) {
         result.standard = IEEE_STANDARDS[result.generation];
@@ -285,3 +309,18 @@ export function getGenerationDescription(generation: WifiGeneration): string {
         ? `WiFi ${generation} (${IEEE_STANDARDS[generation]})`
         : 'WiFi';
 }
+
+const GENERATION_ICON_FILENAMES: Record<WifiGeneration, string | null> = {
+    [WIFI_GENERATIONS.WIFI_1]: 'wifi-1.svg',
+    [WIFI_GENERATIONS.WIFI_2]: 'wifi-2.svg',
+    [WIFI_GENERATIONS.WIFI_3]: 'wifi-3.svg',
+    [WIFI_GENERATIONS.WIFI_4]: 'wifi-4.png',
+    [WIFI_GENERATIONS.WIFI_5]: 'wifi-5.png',
+    [WIFI_GENERATIONS.WIFI_6]: 'wifi-6.png',
+    [WIFI_GENERATIONS.WIFI_7]: 'wifi-7.png',
+    [WIFI_GENERATIONS.UNKNOWN]: null,
+} as const;
+
+export function getGenerationIconFilename(generation: WifiGeneration): string | null {
+    return GENERATION_ICON_FILENAMES[generation];
+}