Merge bitcoin-core/gui-qml#465: Show "Select Wallet" or "Add Wallet" in the Wallet selector if a wallet isn't loaded

1d9ed9c122636634a3875c02bd20a37bcf8b0701 qml: Add Context to CreateWalletWizard (johnny9)
1c910c9e7f3492eaff13426b09d964d7cf0368db qml: Show Add Wallet in WalletBadge if none are found (johnny9)
f204d62e631773ee708754f85199d21f68693e85 qml: Hide tabs and show Select Wallet if no wallet is loaded (johnny9)

Pull request description:

  In addition to changing the component in the top left corner, the navigation tabs will be hidden if no wallet is loaded until a wallet is created/selected.

  ![Screenshot from 2025-06-05 00-05-47](https://github.com/user-attachments/assets/6d7b7990-7472-45b7-ac65-9d334be2d9a5)
  ![Screenshot from 2025-06-05 00-08-48](https://github.com/user-attachments/assets/3c23e764-2650-4193-8067-6d04ed46c694)
  ![Screenshot from 2025-06-05 00-06-08](https://github.com/user-attachments/assets/526903d5-6fb6-4b44-b243-3109c8a69755)

ACKs for top commit:
  GBKS:
    ACK 1d9ed9c

Tree-SHA512: 33c6621af2b0d83a16b115369a10a094c395e4b252c3ab58f47384772654621a11084384bbdc0b245a28270ef46d09387c91d0c1b0f1d48ef0c78ad15941a381

Author: tx-signer450

qml/models/walletqmlmodel.h

@@ -29,6 +29,7 @@ class WalletQmlModel : public QObject
     Q_PROPERTY(SendRecipient* sendRecipient READ sendRecipient CONSTANT)
     Q_PROPERTY(WalletQmlModelTransaction* currentTransaction READ currentTransaction NOTIFY currentTransactionChanged)
     Q_PROPERTY(unsigned int targetBlocks READ feeTargetBlocks WRITE setFeeTargetBlocks NOTIFY feeTargetBlocksChanged)
+    Q_PROPERTY(bool isWalletLoaded READ isWalletLoaded NOTIFY walletIsLoadedChanged)
 
 public:
     WalletQmlModel(std::unique_ptr<interfaces::Wallet> wallet, QObject* parent = nullptr);
@@ -67,11 +68,15 @@ class WalletQmlModel : public QObject
     unsigned int feeTargetBlocks() const;
     void setFeeTargetBlocks(unsigned int target_blocks);
 
+    bool isWalletLoaded() const { return m_is_wallet_loaded; }
+    void setWalletLoaded(bool loaded);
+
 Q_SIGNALS:
     void nameChanged();
     void balanceChanged();
     void currentTransactionChanged();
     void feeTargetBlocksChanged();
+    void walletIsLoadedChanged();
 
 private:
     std::unique_ptr<interfaces::Wallet> m_wallet;
@@ -80,6 +85,7 @@ class WalletQmlModel : public QObject
     SendRecipient* m_current_recipient{nullptr};
     WalletQmlModelTransaction* m_current_transaction{nullptr};
     wallet::CCoinControl m_coin_control;
+    bool m_is_wallet_loaded{false};
 };
 
 #endif // BITCOIN_QML_MODELS_WALLETQMLMODEL_H

qml/pages/main.qml

@@ -69,8 +69,10 @@ ApplicationWindow {
             onFinished: {
                 optionsModel.onboard()
                 if (AppMode.walletEnabled && AppMode.isDesktop) {
-                    main.push(desktopWallets)
-                    main.push(createWalletWizard)
+                    main.push([
+                        desktopWallets, {},
+                        createWalletWizard, { "launchContext": CreateWalletWizard.Context.Onboarding }
+                    ])
                 } else {
                     main.push(node)
                 }
@@ -82,7 +84,7 @@ ApplicationWindow {
         id: desktopWallets
         DesktopWallets {
             onAddWallet: {
-                main.push(createWalletWizard)
+                main.push(createWalletWizard, { "launchContext": CreateWalletWizard.Context.Main })
             }
             onSendTransaction: {
                 main.push(sendReviewPage)

qml/pages/wallet/CreateWalletWizard.qml

@@ -13,16 +13,27 @@ import "../wallet"
 PageStack {
     id: root
 
+    enum Context { Onboarding, Main }
+
     signal finished()
     property string walletName: ""
+    property int launchContext: CreateWalletWizard.Context.Onboarding
 
     initialItem: Page {
         background: null
 
         header: NavigationBar2 {
             id: navbar
             rightItem: NavButton {
-                text: qsTr("Skip")
+                text: {
+                    switch (root.launchContext) {
+                        case CreateWalletWizard.Context.Main:
+                            return qsTr("Cancel");
+                        case CreateWalletWizard.Context.Onboarding:
+                        default:
+                            return qsTr("Skip");
+                    }
+                }
                 onClicked: {
                     root.finished()
                 }

qml/pages/wallet/DesktopWallets.qml

@@ -30,12 +30,20 @@ Page {
             text: walletController.selectedWallet.name
             balance: walletController.selectedWallet.balance
             loading: !walletController.initialized
+            noWalletLoaded: !walletController.isWalletLoaded
+            noWalletsFound: walletController.noWalletsFound
 
             MouseArea {
                 anchors.fill: parent
                 onClicked: {
-                    walletListModel.listWalletDir()
-                    walletSelect.opened ? walletSelect.close() : walletSelect.open()
+                    if (walletController.initialized) {
+                        walletListModel.listWalletDir()
+                        if (walletController.noWalletsFound) {
+                            root.addWallet()
+                        } else {
+                            walletSelect.opened ? walletSelect.close() : walletSelect.open()
+                        }
+                    }
                 }
             }
 
@@ -52,9 +60,9 @@ Page {
             }
         }
         centerItem: RowLayout {
+            visible: walletController.isWalletLoaded
             NavigationTab {
                 id: activityTabButton
-                checked: true
                 text: qsTr("Activity")
                 property int index: 0
                 ButtonGroup.group: navigationTabs
@@ -79,6 +87,7 @@ Page {
             }
             NavigationTab {
                 id: blockClockTabButton
+                checked: true
                 Layout.preferredWidth: 30
                 Layout.rightMargin: 10
                 property int index: 3

qml/pages/wallet/WalletBadge.qml

@@ -23,6 +23,8 @@ Button {
     property bool showIcon: true
     property string balance: "0.0 000 000"
     property bool loading: false
+    property bool noWalletLoaded: false
+    property bool noWalletsFound: false
 
     checkable: true
     hoverEnabled: AppMode.isDesktop
@@ -32,6 +34,10 @@ Button {
     topPadding: 0
     clip: true
 
+    HoverHandler{
+        cursorShape: Qt.PointingHandCursor
+    }
+
     contentItem: Item {
         RowLayout {
             visible: root.loading
@@ -65,7 +71,40 @@ Button {
         }
 
         RowLayout {
-            visible: !root.loading
+            visible: !root.loading && root.noWalletLoaded
+
+            opacity: visible ? 1 : 0
+
+            Behavior on opacity {
+                NumberAnimation { duration: 400 }
+            }
+
+            anchors.leftMargin: 5
+            anchors.rightMargin: 5
+            anchors.centerIn: parent
+            clip: true
+            spacing: 5
+            Icon {
+                visible: root.showIcon
+                source: root.noWalletsFound ? "image://images/plus" : "image://images/caret-down-medium-filled"
+                color: Theme.color.neutral8
+                size: 30
+                Layout.minimumWidth: 25
+                Layout.preferredWidth: 25
+                Layout.maximumWidth: 25
+            }
+            CoreText {
+                horizontalAlignment: Text.AlignLeft
+                Layout.fillWidth: true
+                wrap: false
+                font.pixelSize: 15
+                text: root.noWalletsFound ? qsTr("Add Wallet") : qsTr("Select Wallet")
+                color: root.textColor
+            }
+        }
+
+        RowLayout {
+            visible: !root.loading && !root.noWalletLoaded
 
             opacity: visible ? 1 : 0
 

qml/walletqmlcontroller.cpp

@@ -79,6 +79,7 @@ void WalletQmlController::createSingleSigWallet(const QString &name, const QStri
     if (wallet) {
         m_selected_wallet = new WalletQmlModel(std::move(*wallet));
         m_wallets.push_back(m_selected_wallet);
+        setNoWalletsFound(false);
         Q_EMIT selectedWalletChanged();
     } else {
         m_error_message = util::ErrorString(wallet);
@@ -94,6 +95,7 @@ void WalletQmlController::handleLoadWallet(std::unique_ptr<interfaces::Wallet> w
             if (wallet_model->name() == name) {
                 m_selected_wallet = wallet_model;
                 Q_EMIT selectedWalletChanged();
+                setWalletLoaded(true);
                 return;
             }
         }
@@ -104,6 +106,7 @@ void WalletQmlController::handleLoadWallet(std::unique_ptr<interfaces::Wallet> w
     m_selected_wallet = wallet_model;
     m_wallets.push_back(m_selected_wallet);
     Q_EMIT selectedWalletChanged();
+    setWalletLoaded(true);
 }
 
 void WalletQmlController::initialize()
@@ -118,9 +121,32 @@ void WalletQmlController::initialize()
     }
     if (!m_wallets.empty()) {
         m_selected_wallet = m_wallets.front();
+        setWalletLoaded(true);
         Q_EMIT selectedWalletChanged();
     }
 
+    if (m_node.walletLoader().listWalletDir().size() == 0) {
+        setNoWalletsFound(true);
+    } else {
+        setNoWalletsFound(false);
+    }
+
     m_initialized = true;
     Q_EMIT initializedChanged();
 }
+
+void WalletQmlController::setWalletLoaded(bool loaded)
+{
+    if (m_is_wallet_loaded != loaded) {
+        m_is_wallet_loaded = loaded;
+        Q_EMIT isWalletLoadedChanged();
+    }
+}
+
+void WalletQmlController::setNoWalletsFound(bool no_wallets_found)
+{
+    if (m_no_wallets_found != no_wallets_found) {
+        m_no_wallets_found = no_wallets_found;
+        Q_EMIT noWalletsFoundChanged();
+    }
+}

qml/walletqmlcontroller.h

@@ -22,6 +22,8 @@ class WalletQmlController : public QObject
     Q_OBJECT
     Q_PROPERTY(WalletQmlModel* selectedWallet READ selectedWallet NOTIFY selectedWalletChanged)
     Q_PROPERTY(bool initialized READ initialized NOTIFY initializedChanged)
+    Q_PROPERTY(bool isWalletLoaded READ isWalletLoaded NOTIFY isWalletLoadedChanged)
+    Q_PROPERTY(bool noWalletsFound READ noWalletsFound NOTIFY noWalletsFoundChanged)
 
 public:
     explicit WalletQmlController(interfaces::Node& node, QObject *parent = nullptr);
@@ -33,10 +35,16 @@ class WalletQmlController : public QObject
     WalletQmlModel* selectedWallet() const;
     void unloadWallets();
     bool initialized() const { return m_initialized; }
+    bool isWalletLoaded() const { return m_is_wallet_loaded; }
+    void setWalletLoaded(bool loaded);
+    bool noWalletsFound() const { return m_no_wallets_found; }
+    void setNoWalletsFound(bool no_wallets_found);
 
 Q_SIGNALS:
     void selectedWalletChanged();
     void initializedChanged();
+    void isWalletLoadedChanged();
+    void noWalletsFoundChanged();
 
 public Q_SLOTS:
     void initialize();
@@ -52,6 +60,8 @@ public Q_SLOTS:
     QMutex m_wallets_mutex;
     std::vector<WalletQmlModel*> m_wallets;
     std::unique_ptr<interfaces::Handler> m_handler_load_wallet;
+    bool m_is_wallet_loaded{false};
+    bool m_no_wallets_found{false};
 
     bilingual_str m_error_message;
     std::vector<bilingual_str> m_warning_messages;