feat: add support for Brave wallet

src/utils/wallet/WalletDriver_Blade.ts

@@ -53,16 +53,16 @@ export class WalletDriver_Blade extends WalletDriver_Hedera {
         const hNetwork = WalletDriver_Blade.makeHederaNetwork(network)
         if (hNetwork !== null) {
             const {BladeConnector, ConnectorStrategy} = await import("@bladelabs/blade-web3.js")
-            newConnector = await BladeConnector.init(
-                ConnectorStrategy.EXTENSION,
-                {
-                    name: "HashScan",
-                    description: "A ledger explorer for Hedera network",
-                    url: "https://hashscan.io",
-                    icons: [ HederaLogo ]
-                }
-            )
             try {
+                newConnector = await BladeConnector.init(
+                    ConnectorStrategy.EXTENSION,
+                    {
+                        name: "HashScan",
+                        description: "A ledger explorer for Hedera network",
+                        url: "https://hashscan.io",
+                        icons: [ HederaLogo ]
+                    }
+                )
                 const params = {
                     network: hNetwork,
                     dAppCode: "HashScan"

src/utils/wallet/WalletDriver_Brave.ts

@@ -0,0 +1,82 @@
+/*-
+ *
+ * Hedera Mirror Node Explorer
+ *
+ * Copyright (C) 2021 - 2023 Hedera Hashgraph, LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+import {BaseProvider} from '@metamask/providers';
+import {WalletDriver_Ethereum} from "@/utils/wallet/WalletDriver_Ethereum";
+import {WalletDriverError} from "@/utils/wallet/WalletDriverError";
+
+export class WalletDriver_Brave extends WalletDriver_Ethereum {
+
+    private braveProvider: BaseProvider|null = null
+
+    //
+    // Public
+    //
+
+    public constructor() {
+        super("Brave Wallet",
+            "https://brave.com/static-assets/images/optimized/brave-branding-assets/images/brave-logo-color-RGB_reversed.png",
+            "https://brave.com/static-assets/images/brave-logo-no-shadow.png")
+    }
+
+    //
+    // WalletDriver_Ethereum
+    //
+
+    public async isExpectedProvider(provider: object): Promise<boolean> {
+        // https://wallet-docs.brave.com/ethereum/wallet-detection/
+        const clientVersion = await (provider as any).request({method: "web3_clientVersion"})
+        const isBraveWallet = clientVersion.split('/')[0] === 'BraveWallet'
+        this.braveProvider = isBraveWallet ? provider as BaseProvider : null
+        return this.braveProvider !== null
+    }
+
+    public async connect(network: string): Promise<string[]> {
+        const result = await super.connect(network)
+        this.braveProvider?.on('chainChanged', this.handleDisconnect)
+        return Promise.resolve(result)
+    }
+
+    public async disconnect(): Promise<void> {
+        this.braveProvider?.removeListener("chainChanged", this.handleDisconnect)
+        this.braveProvider = null
+        return super.disconnect()
+    }
+
+    //
+    // WalletDriver
+    //
+
+    public extensionNotFound(): WalletDriverError {
+        // Brave wallet is builtin to Brave browser => we adapt wording
+        const message = "Cannot access to " + this.name
+        const extra = "Make sure to use Brave browser and enable wallet in browser settings."
+        return new WalletDriverError(message, extra)
+    }
+
+
+    //
+    // Private
+    //
+
+    private readonly handleDisconnect = () => this.disconnect()
+
+
+}

src/utils/wallet/WalletManager.ts

@@ -28,16 +28,18 @@ import {WalletDriver_Hedera} from "@/utils/wallet/WalletDriver_Hedera";
 import {WalletDriver_Metamask} from "@/utils/wallet/WalletDriver_Metamask";
 import {WalletDriver_Ethereum} from "@/utils/wallet/WalletDriver_Ethereum";
 import {WalletDriver_Coinbase} from "@/utils/wallet/WalletDriver_Coinbase";
+import {WalletDriver_Brave} from '@/utils/wallet//WalletDriver_Brave';
 
 export class WalletManager {
 
     private readonly routeManager: RouteManager
     private readonly bladeDriver = new WalletDriver_Blade()
+    private readonly braveDriver = new WalletDriver_Brave()
     private readonly hashpackDriver = new WalletDriver_Hashpack()
     private readonly metamaskDriver = new WalletDriver_Metamask()
     private readonly coinbaseDriver = new WalletDriver_Coinbase()
     private readonly drivers: Array<WalletDriver> = [
-        this.bladeDriver, this.hashpackDriver, this.metamaskDriver, this.coinbaseDriver]
+        this.bladeDriver, this.hashpackDriver, this.metamaskDriver, this.coinbaseDriver, this.braveDriver]
     private readonly timeout = 30000; // milliseconds
 
 

tests/unit/App.spec.ts

@@ -105,19 +105,20 @@ describe("App.vue", () => {
         expect(cards[2].text()).toMatch(RegExp("^HCS Messages"))
 
         const logos = wrapper.findAll("img")
-        expect(logos.length).toBe(12)
+        expect(logos.length).toBe(13)
         expect(logos[0].attributes('alt')).toBe("")
         expect(logos[1].attributes('alt')).toBe("wallet logo")
         expect(logos[2].attributes('alt')).toBe("wallet logo")
         expect(logos[3].attributes('alt')).toBe("wallet logo")
         expect(logos[4].attributes('alt')).toBe("wallet logo")
-        expect(logos[5].attributes('alt')).toBe("Modal close icon")
-        expect(logos[6].attributes('alt')).toBe("Product Logo")
-        expect(logos[7].attributes('alt')).toBe("Modal close icon")
-        expect(logos[8].attributes('alt')).toBe("Trend Up")
+        expect(logos[5].attributes('alt')).toBe("wallet logo")
+        expect(logos[6].attributes('alt')).toBe("Modal close icon")
+        expect(logos[7].attributes('alt')).toBe("Product Logo")
+        expect(logos[8].attributes('alt')).toBe("Modal close icon")
         expect(logos[9].attributes('alt')).toBe("Trend Up")
-        expect(logos[10].attributes('alt')).toBe("Built On Hedera")
-        expect(logos[11].attributes('alt')).toBe("Sponsor Logo")
+        expect(logos[10].attributes('alt')).toBe("Trend Up")
+        expect(logos[11].attributes('alt')).toBe("Built On Hedera")
+        expect(logos[12].attributes('alt')).toBe("Sponsor Logo")
 
         mock.restore()
         wrapper.unmount()

tests/unit/TopNavBar.spec.ts

@@ -57,7 +57,7 @@ describe("TopNavBar.vue", () => {
             "Connect WalletCANCELCONNECT DisclaimerPlease don't show me this next timeCANCELAGREEFillerFillerCLOSEDashboardTransactionsTokensTopicsContractsAccountsNodesStakingBlocksMAINNETTESTNETPREVIEWNETCONNECT WALLET...")
 
         const links = wrapper.findAll("a")
-        expect(links.length).toBe(17)
+        expect(links.length).toBe(18)
 
         wrapper.unmount()
         await flushPromises()
@@ -83,29 +83,30 @@ describe("TopNavBar.vue", () => {
             "Connect WalletCANCELCONNECT DisclaimerPlease don't show me this next timeCANCELAGREEFillerFillerCLOSEDashboardTransactionsTokensTopicsContractsAccountsNodesStakingBlocksMAINNETTESTNETPREVIEWNETCONNECT WALLET...")
 
         const links = wrapper.findAll("a")
-        expect(links.length).toBe(17)
-
-        expect(links[8].text()).toBe("Dashboard")
-        expect(links[9].text()).toBe("Transactions")
-        expect(links[10].text()).toBe("Tokens")
-        expect(links[11].text()).toBe("Topics")
-        expect(links[12].text()).toBe("Contracts")
-        expect(links[13].text()).toBe("Accounts")
-        expect(links[14].text()).toBe("Nodes")
-        expect(links[15].text()).toBe("Staking")
-        expect(links[16].text()).toBe("Blocks")
+        expect(links.length).toBe(18)
+
+        expect(links[9].text()).toBe("Dashboard")
+        expect(links[10].text()).toBe("Transactions")
+        expect(links[11].text()).toBe("Tokens")
+        expect(links[12].text()).toBe("Topics")
+        expect(links[13].text()).toBe("Contracts")
+        expect(links[14].text()).toBe("Accounts")
+        expect(links[15].text()).toBe("Nodes")
+        expect(links[16].text()).toBe("Staking")
+        expect(links[17].text()).toBe("Blocks")
 
         expect(wrapper.findComponent(SearchBar).exists()).toBe(true)
 
         const logos = wrapper.findAll("img")
-        expect(logos.length).toBe(8)
+        expect(logos.length).toBe(9)
         expect(logos[1].attributes('alt')).toBe("wallet logo")
         expect(logos[2].attributes('alt')).toBe("wallet logo")
         expect(logos[3].attributes('alt')).toBe("wallet logo")
         expect(logos[4].attributes('alt')).toBe("wallet logo")
-        expect(logos[5].attributes('alt')).toBe("Modal close icon")
-        expect(logos[6].attributes('alt')).toBe("Product Logo")
-        expect(logos[7].attributes('alt')).toBe("Modal close icon")
+        expect(logos[5].attributes('alt')).toBe("wallet logo")
+        expect(logos[6].attributes('alt')).toBe("Modal close icon")
+        expect(logos[7].attributes('alt')).toBe("Product Logo")
+        expect(logos[8].attributes('alt')).toBe("Modal close icon")
 
         wrapper.unmount()
         await flushPromises()