configure_input_player: Implement input exclusivity and persistence

With this, the "Input Devices" combobox should accurately reflect the input device being used and disallows inputs from other input devices unless the input device is set to "Any".

4 files changed, 205 insertions, 138 deletions

diff --git a/src/input_common/main.cpp b/src/input_common/main.cpp
index d32fd8b81..354c734fe 100644
--- a/src/input_common/main.cpp
+++ b/src/input_common/main.cpp
@@ -78,7 +78,7 @@ struct InputSubsystem::Impl {
     [[nodiscard]] std::vector<Common::ParamPackage> GetInputDevices() const {
         std::vector<Common::ParamPackage> devices = {
             Common::ParamPackage{{"display", "Any"}, {"class", "any"}},
-            Common::ParamPackage{{"display", "Keyboard/Mouse"}, {"class", "key"}},
+            Common::ParamPackage{{"display", "Keyboard/Mouse"}, {"class", "keyboard"}},
         };
 #ifdef HAVE_SDL2
         auto sdl_devices = sdl->GetInputDevices();
@@ -96,7 +96,7 @@ struct InputSubsystem::Impl {
         if (!params.Has("class") || params.Get("class", "") == "any") {
             return {};
         }
-        if (params.Get("class", "") == "key") {
+        if (params.Get("class", "") == "keyboard") {
             // TODO consider returning the SDL key codes for the default keybindings
             return {};
         }
@@ -116,7 +116,7 @@ struct InputSubsystem::Impl {
         if (!params.Has("class") || params.Get("class", "") == "any") {
             return {};
         }
-        if (params.Get("class", "") == "key") {
+        if (params.Get("class", "") == "keyboard") {
             // TODO consider returning the SDL key codes for the default keybindings
             return {};
         }
diff --git a/src/yuzu/configuration/configure_input.cpp b/src/yuzu/configuration/configure_input.cpp
index 2725fcb2b..f2932aa0b 100644
--- a/src/yuzu/configuration/configure_input.cpp
+++ b/src/yuzu/configuration/configure_input.cpp
@@ -242,6 +242,6 @@ void ConfigureInput::UpdateDockedState(bool is_handheld) {
 
 void ConfigureInput::UpdateAllInputDevices() {
     for (const auto& player : player_controllers) {
-        player->UpdateInputDevices();
+        player->UpdateInputDeviceCombobox();
     }
 }
diff --git a/src/yuzu/configuration/configure_input_player.cpp b/src/yuzu/configuration/configure_input_player.cpp
index f58ca29d7..0de0c6999 100644
--- a/src/yuzu/configuration/configure_input_player.cpp
+++ b/src/yuzu/configuration/configure_input_player.cpp
@@ -477,11 +477,12 @@ ConfigureInputPlayer::ConfigureInputPlayer(QWidget* parent, std::size_t player_i
         UpdateMotionButtons();
     });
 
-    connect(ui->comboDevices, qOverload<int>(&QComboBox::currentIndexChanged), this,
+    connect(ui->comboDevices, qOverload<int>(&QComboBox::activated), this,
             &ConfigureInputPlayer::UpdateMappingWithDefaults);
 
+    ui->comboDevices->setCurrentIndex(-1);
+
     ui->buttonRefreshDevices->setIcon(QIcon::fromTheme(QStringLiteral("view-refresh")));
-    UpdateInputDevices();
     connect(ui->buttonRefreshDevices, &QPushButton::clicked,
             [this] { emit RefreshInputDevices(); });
 
@@ -492,14 +493,14 @@ ConfigureInputPlayer::ConfigureInputPlayer(QWidget* parent, std::size_t player_i
         Common::ParamPackage params;
         if (input_subsystem->GetGCButtons()->IsPolling()) {
             params = input_subsystem->GetGCButtons()->GetNextInput();
-            if (params.Has("engine")) {
+            if (params.Has("engine") && IsInputAcceptable(params)) {
                 SetPollingResult(params, false);
                 return;
             }
         }
         if (input_subsystem->GetGCAnalogs()->IsPolling()) {
             params = input_subsystem->GetGCAnalogs()->GetNextInput();
-            if (params.Has("engine")) {
+            if (params.Has("engine") && IsInputAcceptable(params)) {
                 SetPollingResult(params, false);
                 return;
             }
@@ -513,7 +514,7 @@ ConfigureInputPlayer::ConfigureInputPlayer(QWidget* parent, std::size_t player_i
         }
         for (auto& poller : device_pollers) {
             params = poller->GetNextInput();
-            if (params.Has("engine")) {
+            if (params.Has("engine") && IsInputAcceptable(params)) {
                 SetPollingResult(params, false);
                 return;
             }
@@ -572,6 +573,14 @@ void ConfigureInputPlayer::ApplyConfiguration() {
     UpdateController(Settings::ControllerType::Handheld, HANDHELD_INDEX, handheld.connected);
 }
 
+void ConfigureInputPlayer::showEvent(QShowEvent* event) {
+    if (bottom_row == nullptr) {
+        return;
+    }
+    QWidget::showEvent(event);
+    ui->main->addWidget(bottom_row);
+}
+
 void ConfigureInputPlayer::changeEvent(QEvent* event) {
     if (event->type() == QEvent::LanguageChange) {
         RetranslateUI();
@@ -604,6 +613,7 @@ void ConfigureInputPlayer::LoadConfiguration() {
     }
 
     UpdateUI();
+    UpdateInputDeviceCombobox();
 
     if (debug) {
         return;
@@ -615,11 +625,56 @@ void ConfigureInputPlayer::LoadConfiguration() {
         (player_index == 0 && Settings::values.players[HANDHELD_INDEX].connected));
 }
 
-void ConfigureInputPlayer::UpdateInputDevices() {
-    input_devices = input_subsystem->GetInputDevices();
-    ui->comboDevices->clear();
-    for (auto device : input_devices) {
-        ui->comboDevices->addItem(QString::fromStdString(device.Get("display", "Unknown")), {});
+void ConfigureInputPlayer::ConnectPlayer(bool connected) {
+    ui->groupConnectedController->setChecked(connected);
+}
+
+void ConfigureInputPlayer::UpdateInputDeviceCombobox() {
+    // Skip input device persistence if "Input Devices" is set to "Any".
+    if (ui->comboDevices->currentIndex() == 0) {
+        UpdateInputDevices();
+        return;
+    }
+
+    // Find the first button that isn't empty.
+    const auto button_param =
+        std::find_if(buttons_param.begin(), buttons_param.end(),
+                     [](const Common::ParamPackage param) { return param.Has("engine"); });
+    const bool buttons_empty = button_param == buttons_param.end();
+
+    const auto current_engine = button_param->Get("engine", "");
+    const auto current_guid = button_param->Get("guid", "");
+    const auto current_port = button_param->Get("port", "");
+
+    UpdateInputDevices();
+
+    if (buttons_empty) {
+        return;
+    }
+
+    const bool all_one_device =
+        std::all_of(buttons_param.begin(), buttons_param.end(),
+                    [current_engine, current_guid, current_port](const Common::ParamPackage param) {
+                        return !param.Has("engine") || (param.Get("engine", "") == current_engine &&
+                                                        param.Get("guid", "") == current_guid &&
+                                                        param.Get("port", "") == current_port);
+                    });
+
+    if (all_one_device) {
+        const auto devices_it = std::find_if(
+            input_devices.begin(), input_devices.end(),
+            [current_engine, current_guid, current_port](const Common::ParamPackage param) {
+                return param.Get("class", "") == current_engine &&
+                       param.Get("guid", "") == current_guid &&
+                       param.Get("port", "") == current_port;
+            });
+        const int device_index =
+            devices_it != input_devices.end()
+                ? static_cast<int>(std::distance(input_devices.begin(), devices_it))
+                : 0;
+        ui->comboDevices->setCurrentIndex(device_index);
+    } else {
+        ui->comboDevices->setCurrentIndex(0);
     }
 }
 
@@ -648,7 +703,7 @@ void ConfigureInputPlayer::RestoreDefaults() {
     }
 
     UpdateUI();
-    UpdateInputDevices();
+    UpdateInputDeviceCombobox();
     ui->comboControllerType->setCurrentIndex(0);
 }
 
@@ -752,117 +807,12 @@ void ConfigureInputPlayer::UpdateUI() {
     }
 }
 
-void ConfigureInputPlayer::UpdateMappingWithDefaults() {
-    if (ui->comboDevices->currentIndex() < 2) {
-        return;
-    }
-    const auto& device = input_devices[ui->comboDevices->currentIndex()];
-    auto button_mapping = input_subsystem->GetButtonMappingForDevice(device);
-    auto analog_mapping = input_subsystem->GetAnalogMappingForDevice(device);
-    for (std::size_t i = 0; i < buttons_param.size(); ++i) {
-        buttons_param[i] = button_mapping[static_cast<Settings::NativeButton::Values>(i)];
-    }
-    for (std::size_t i = 0; i < analogs_param.size(); ++i) {
-        analogs_param[i] = analog_mapping[static_cast<Settings::NativeAnalog::Values>(i)];
-    }
-
-    UpdateUI();
-}
-
-void ConfigureInputPlayer::HandleClick(
-    QPushButton* button, std::function<void(const Common::ParamPackage&)> new_input_setter,
-    InputCommon::Polling::DeviceType type) {
-    if (button == ui->buttonMotionLeft || button == ui->buttonMotionRight) {
-        button->setText(tr("Shake!"));
-    } else {
-        button->setText(tr("[waiting]"));
-    }
-    button->setFocus();
-
-    // The first two input devices are always Any and Keyboard/Mouse. If the user filtered to a
-    // controller, then they don't want keyboard/mouse input
-    want_keyboard_mouse = ui->comboDevices->currentIndex() < 2;
-
-    input_setter = new_input_setter;
-
-    device_pollers = input_subsystem->GetPollers(type);
-
-    for (auto& poller : device_pollers) {
-        poller->Start();
-    }
-
-    QWidget::grabMouse();
-    QWidget::grabKeyboard();
-
-    if (type == InputCommon::Polling::DeviceType::Button) {
-        input_subsystem->GetGCButtons()->BeginConfiguration();
-    } else {
-        input_subsystem->GetGCAnalogs()->BeginConfiguration();
-    }
-
-    if (type == InputCommon::Polling::DeviceType::Motion) {
-        input_subsystem->GetUDPMotions()->BeginConfiguration();
-    }
-
-    timeout_timer->start(2500); // Cancel after 2.5 seconds
-    poll_timer->start(50);      // Check for new inputs every 50ms
-}
-
-void ConfigureInputPlayer::SetPollingResult(const Common::ParamPackage& params, bool abort) {
-    timeout_timer->stop();
-    poll_timer->stop();
-    for (auto& poller : device_pollers) {
-        poller->Stop();
-    }
-
-    QWidget::releaseMouse();
-    QWidget::releaseKeyboard();
-
-    input_subsystem->GetGCButtons()->EndConfiguration();
-    input_subsystem->GetGCAnalogs()->EndConfiguration();
-
-    input_subsystem->GetUDPMotions()->EndConfiguration();
-
-    if (!abort) {
-        (*input_setter)(params);
-    }
-
-    UpdateUI();
-    input_setter = std::nullopt;
-}
-
-void ConfigureInputPlayer::mousePressEvent(QMouseEvent* event) {
-    if (!input_setter || !event) {
-        return;
-    }
-
-    if (want_keyboard_mouse) {
-        SetPollingResult(Common::ParamPackage{InputCommon::GenerateKeyboardParam(event->button())},
-                         false);
-    } else {
-        // We don't want any mouse buttons, so don't stop polling
-        return;
-    }
-
-    SetPollingResult({}, true);
-}
-
-void ConfigureInputPlayer::keyPressEvent(QKeyEvent* event) {
-    if (!input_setter || !event) {
-        return;
-    }
-
-    if (event->key() != Qt::Key_Escape) {
-        if (want_keyboard_mouse) {
-            SetPollingResult(Common::ParamPackage{InputCommon::GenerateKeyboardParam(event->key())},
-                             false);
-        } else {
-            // Escape key wasn't pressed and we don't want any keyboard keys, so don't stop polling
-            return;
-        }
+void ConfigureInputPlayer::UpdateInputDevices() {
+    input_devices = input_subsystem->GetInputDevices();
+    ui->comboDevices->clear();
+    for (auto device : input_devices) {
+        ui->comboDevices->addItem(QString::fromStdString(device.Get("display", "Unknown")), {});
     }
-
-    SetPollingResult({}, true);
 }
 
 void ConfigureInputPlayer::UpdateControllerIcon() {
@@ -986,14 +936,128 @@ void ConfigureInputPlayer::UpdateMotionButtons() {
     }
 }
 
-void ConfigureInputPlayer::showEvent(QShowEvent* event) {
-    if (bottom_row == nullptr) {
+void ConfigureInputPlayer::UpdateMappingWithDefaults() {
+    if (ui->comboDevices->currentIndex() < 2) {
         return;
     }
-    QWidget::showEvent(event);
-    ui->main->addWidget(bottom_row);
+    const auto& device = input_devices[ui->comboDevices->currentIndex()];
+    auto button_mapping = input_subsystem->GetButtonMappingForDevice(device);
+    auto analog_mapping = input_subsystem->GetAnalogMappingForDevice(device);
+    for (std::size_t i = 0; i < buttons_param.size(); ++i) {
+        buttons_param[i] = button_mapping[static_cast<Settings::NativeButton::Values>(i)];
+    }
+    for (std::size_t i = 0; i < analogs_param.size(); ++i) {
+        analogs_param[i] = analog_mapping[static_cast<Settings::NativeAnalog::Values>(i)];
+    }
+
+    UpdateUI();
 }
 
-void ConfigureInputPlayer::ConnectPlayer(bool connected) {
-    ui->groupConnectedController->setChecked(connected);
+void ConfigureInputPlayer::HandleClick(
+    QPushButton* button, std::function<void(const Common::ParamPackage&)> new_input_setter,
+    InputCommon::Polling::DeviceType type) {
+    if (button == ui->buttonMotionLeft || button == ui->buttonMotionRight) {
+        button->setText(tr("Shake!"));
+    } else {
+        button->setText(tr("[waiting]"));
+    }
+    button->setFocus();
+
+    // The first two input devices are always Any and Keyboard/Mouse. If the user filtered to a
+    // controller, then they don't want keyboard/mouse input
+    want_keyboard_mouse = ui->comboDevices->currentIndex() < 2;
+
+    input_setter = new_input_setter;
+
+    device_pollers = input_subsystem->GetPollers(type);
+
+    for (auto& poller : device_pollers) {
+        poller->Start();
+    }
+
+    QWidget::grabMouse();
+    QWidget::grabKeyboard();
+
+    if (type == InputCommon::Polling::DeviceType::Button) {
+        input_subsystem->GetGCButtons()->BeginConfiguration();
+    } else {
+        input_subsystem->GetGCAnalogs()->BeginConfiguration();
+    }
+
+    if (type == InputCommon::Polling::DeviceType::Motion) {
+        input_subsystem->GetUDPMotions()->BeginConfiguration();
+    }
+
+    timeout_timer->start(2500); // Cancel after 2.5 seconds
+    poll_timer->start(50);      // Check for new inputs every 50ms
+}
+
+void ConfigureInputPlayer::SetPollingResult(const Common::ParamPackage& params, bool abort) {
+    timeout_timer->stop();
+    poll_timer->stop();
+    for (auto& poller : device_pollers) {
+        poller->Stop();
+    }
+
+    QWidget::releaseMouse();
+    QWidget::releaseKeyboard();
+
+    input_subsystem->GetGCButtons()->EndConfiguration();
+    input_subsystem->GetGCAnalogs()->EndConfiguration();
+
+    input_subsystem->GetUDPMotions()->EndConfiguration();
+
+    if (!abort) {
+        (*input_setter)(params);
+    }
+
+    UpdateUI();
+    UpdateInputDeviceCombobox();
+
+    input_setter = std::nullopt;
+}
+
+bool ConfigureInputPlayer::IsInputAcceptable(const Common::ParamPackage& params) const {
+    if (ui->comboDevices->currentIndex() == 0) {
+        return true;
+    }
+
+    const auto current_input_device = input_devices[ui->comboDevices->currentIndex()];
+    return params.Get("engine", "") == current_input_device.Get("class", "") &&
+           params.Get("guid", "") == current_input_device.Get("guid", "") &&
+           params.Get("port", "") == current_input_device.Get("port", "");
+}
+
+void ConfigureInputPlayer::mousePressEvent(QMouseEvent* event) {
+    if (!input_setter || !event) {
+        return;
+    }
+
+    if (want_keyboard_mouse) {
+        SetPollingResult(Common::ParamPackage{InputCommon::GenerateKeyboardParam(event->button())},
+                         false);
+    } else {
+        // We don't want any mouse buttons, so don't stop polling
+        return;
+    }
+
+    SetPollingResult({}, true);
+}
+
+void ConfigureInputPlayer::keyPressEvent(QKeyEvent* event) {
+    if (!input_setter || !event) {
+        return;
+    }
+
+    if (event->key() != Qt::Key_Escape) {
+        if (want_keyboard_mouse) {
+            SetPollingResult(Common::ParamPackage{InputCommon::GenerateKeyboardParam(event->key())},
+                             false);
+        } else {
+            // Escape key wasn't pressed and we don't want any keyboard keys, so don't stop polling
+            return;
+        }
+    }
+
+    SetPollingResult({}, true);
 }
diff --git a/src/yuzu/configuration/configure_input_player.h b/src/yuzu/configuration/configure_input_player.h
index c19aefffa..a5414e624 100644
--- a/src/yuzu/configuration/configure_input_player.h
+++ b/src/yuzu/configuration/configure_input_player.h
@@ -51,8 +51,11 @@ public:
     /// Save all button configurations to settings file.
     void ApplyConfiguration();
 
+    /// Set the connection state checkbox (used to sync state).
+    void ConnectPlayer(bool connected);
+
     /// Update the input devices combobox.
-    void UpdateInputDevices();
+    void UpdateInputDeviceCombobox();
 
     /// Restore all buttons to their default values.
     void RestoreDefaults();
@@ -60,9 +63,6 @@ public:
     /// Clear all input configuration.
     void ClearAll();
 
-    /// Set the connection state checkbox (used to sync state).
-    void ConnectPlayer(bool connected);
-
 signals:
     /// Emitted when this controller is connected by the user.
     void Connected(bool connected);
@@ -89,6 +89,9 @@ private:
     /// Finish polling and configure input using the input_setter.
     void SetPollingResult(const Common::ParamPackage& params, bool abort);
 
+    /// Checks whether a given input can be accepted.
+    bool IsInputAcceptable(const Common::ParamPackage& params) const;
+
     /// Handle mouse button press events.
     void mousePressEvent(QMouseEvent* event) override;
 
@@ -98,8 +101,8 @@ private:
     /// Update UI to reflect current configuration.
     void UpdateUI();
 
-    /// Update the controller selection combobox
-    void UpdateControllerCombobox();
+    /// Update the available input devices.
+    void UpdateInputDevices();
 
     /// Update the current controller icon.
     void UpdateControllerIcon();
@@ -164,7 +167,7 @@ private:
     bool want_keyboard_mouse = false;
 
     /// List of physical devices users can map with. If a SDL backed device is selected, then you
-    /// can usue this device to get a default mapping.
+    /// can use this device to get a default mapping.
     std::vector<Common::ParamPackage> input_devices;
 
     /// Bottom row is where console wide settings are held, and its "owned" by the parent