1 files changed, 205 insertions, 0 deletions
diff --git a/src/citra_qt/configuration/configure_input.cpp b/src/citra_qt/configuration/configure_input.cpp
new file mode 100644
index 000000000..daac9b63a
--- /dev/null
+++ b/src/citra_qt/configuration/configure_input.cpp
@@ -0,0 +1,205 @@
+// Copyright 2016 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <algorithm>
+#include <memory>
+#include <utility>
+#include <QTimer>
+#include "citra_qt/configuration/config.h"
+#include "citra_qt/configuration/configure_input.h"
+#include "common/param_package.h"
+#include "input_common/main.h"
+
+const std::array<std::string, ConfigureInput::ANALOG_SUB_BUTTONS_NUM>
+    ConfigureInput::analog_sub_buttons{{
+        "up", "down", "left", "right", "modifier",
+    }};
+
+static QString getKeyName(int key_code) {
+    switch (key_code) {
+    case Qt::Key_Shift:
+        return QObject::tr("Shift");
+    case Qt::Key_Control:
+        return QObject::tr("Ctrl");
+    case Qt::Key_Alt:
+        return QObject::tr("Alt");
+    case Qt::Key_Meta:
+        return "";
+    default:
+        return QKeySequence(key_code).toString();
+    }
+}
+
+static void SetButtonKey(int key, Common::ParamPackage& button_param) {
+    button_param = Common::ParamPackage{InputCommon::GenerateKeyboardParam(key)};
+}
+
+static void SetAnalogKey(int key, Common::ParamPackage& analog_param,
+                         const std::string& button_name) {
+    if (analog_param.Get("engine", "") != "analog_from_button") {
+        analog_param = {
+            {"engine", "analog_from_button"}, {"modifier_scale", "0.5"},
+        };
+    }
+    analog_param.Set(button_name, InputCommon::GenerateKeyboardParam(key));
+}
+
+ConfigureInput::ConfigureInput(QWidget* parent)
+    : QWidget(parent), ui(std::make_unique<Ui::ConfigureInput>()),
+      timer(std::make_unique<QTimer>()) {
+
+    ui->setupUi(this);
+    setFocusPolicy(Qt::ClickFocus);
+
+    button_map = {
+        ui->buttonA,        ui->buttonB,        ui->buttonX,         ui->buttonY,  ui->buttonDpadUp,
+        ui->buttonDpadDown, ui->buttonDpadLeft, ui->buttonDpadRight, ui->buttonL,  ui->buttonR,
+        ui->buttonStart,    ui->buttonSelect,   ui->buttonZL,        ui->buttonZR, ui->buttonHome,
+    };
+
+    analog_map = {{
+        {
+            ui->buttonCircleUp, ui->buttonCircleDown, ui->buttonCircleLeft, ui->buttonCircleRight,
+            ui->buttonCircleMod,
+        },
+        {
+            ui->buttonCStickUp, ui->buttonCStickDown, ui->buttonCStickLeft, ui->buttonCStickRight,
+            nullptr,
+        },
+    }};
+
+    for (int button_id = 0; button_id < Settings::NativeButton::NumButtons; button_id++) {
+        if (button_map[button_id])
+            connect(button_map[button_id], &QPushButton::released, [=]() {
+                handleClick(button_map[button_id],
+                            [=](int key) { SetButtonKey(key, buttons_param[button_id]); });
+            });
+    }
+
+    for (int analog_id = 0; analog_id < Settings::NativeAnalog::NumAnalogs; analog_id++) {
+        for (int sub_button_id = 0; sub_button_id < ANALOG_SUB_BUTTONS_NUM; sub_button_id++) {
+            if (analog_map[analog_id][sub_button_id] != nullptr) {
+                connect(analog_map[analog_id][sub_button_id], &QPushButton::released, [=]() {
+                    handleClick(analog_map[analog_id][sub_button_id], [=](int key) {
+                        SetAnalogKey(key, analogs_param[analog_id],
+                                     analog_sub_buttons[sub_button_id]);
+                    });
+                });
+            }
+        }
+    }
+
+    connect(ui->buttonRestoreDefaults, &QPushButton::released, [this]() { restoreDefaults(); });
+
+    timer->setSingleShot(true);
+    connect(timer.get(), &QTimer::timeout, [this]() {
+        releaseKeyboard();
+        releaseMouse();
+        key_setter = boost::none;
+        updateButtonLabels();
+    });
+
+    this->loadConfiguration();
+
+    // TODO(wwylele): enable these when the input emulation for them is implemented
+    ui->buttonZL->setEnabled(false);
+    ui->buttonZR->setEnabled(false);
+    ui->buttonHome->setEnabled(false);
+    ui->buttonCStickUp->setEnabled(false);
+    ui->buttonCStickDown->setEnabled(false);
+    ui->buttonCStickLeft->setEnabled(false);
+    ui->buttonCStickRight->setEnabled(false);
+}
+
+void ConfigureInput::applyConfiguration() {
+    std::transform(buttons_param.begin(), buttons_param.end(), Settings::values.buttons.begin(),
+                   [](const Common::ParamPackage& param) { return param.Serialize(); });
+    std::transform(analogs_param.begin(), analogs_param.end(), Settings::values.analogs.begin(),
+                   [](const Common::ParamPackage& param) { return param.Serialize(); });
+
+    Settings::Apply();
+}
+
+void ConfigureInput::loadConfiguration() {
+    std::transform(Settings::values.buttons.begin(), Settings::values.buttons.end(),
+                   buttons_param.begin(),
+                   [](const std::string& str) { return Common::ParamPackage(str); });
+    std::transform(Settings::values.analogs.begin(), Settings::values.analogs.end(),
+                   analogs_param.begin(),
+                   [](const std::string& str) { return Common::ParamPackage(str); });
+    updateButtonLabels();
+}
+
+void ConfigureInput::restoreDefaults() {
+    for (int button_id = 0; button_id < Settings::NativeButton::NumButtons; button_id++) {
+        SetButtonKey(Config::default_buttons[button_id], buttons_param[button_id]);
+    }
+
+    for (int analog_id = 0; analog_id < Settings::NativeAnalog::NumAnalogs; analog_id++) {
+        for (int sub_button_id = 0; sub_button_id < ANALOG_SUB_BUTTONS_NUM; sub_button_id++) {
+            SetAnalogKey(Config::default_analogs[analog_id][sub_button_id],
+                         analogs_param[analog_id], analog_sub_buttons[sub_button_id]);
+        }
+    }
+    updateButtonLabels();
+    applyConfiguration();
+}
+
+void ConfigureInput::updateButtonLabels() {
+    QString non_keyboard(tr("[non-keyboard]"));
+
+    auto KeyToText = [&non_keyboard](const Common::ParamPackage& param) {
+        if (param.Get("engine", "") != "keyboard") {
+            return non_keyboard;
+        } else {
+            return getKeyName(param.Get("code", 0));
+        }
+    };
+
+    for (int button = 0; button < Settings::NativeButton::NumButtons; button++) {
+        button_map[button]->setText(KeyToText(buttons_param[button]));
+    }
+
+    for (int analog_id = 0; analog_id < Settings::NativeAnalog::NumAnalogs; analog_id++) {
+        if (analogs_param[analog_id].Get("engine", "") != "analog_from_button") {
+            for (QPushButton* button : analog_map[analog_id]) {
+                if (button)
+                    button->setText(non_keyboard);
+            }
+        } else {
+            for (int sub_button_id = 0; sub_button_id < ANALOG_SUB_BUTTONS_NUM; sub_button_id++) {
+                Common::ParamPackage param(
+                    analogs_param[analog_id].Get(analog_sub_buttons[sub_button_id], ""));
+                if (analog_map[analog_id][sub_button_id])
+                    analog_map[analog_id][sub_button_id]->setText(KeyToText(param));
+            }
+        }
+    }
+}
+
+void ConfigureInput::handleClick(QPushButton* button, std::function<void(int)> new_key_setter) {
+    button->setText(tr("[press key]"));
+    button->setFocus();
+
+    key_setter = new_key_setter;
+
+    grabKeyboard();
+    grabMouse();
+    timer->start(5000); // Cancel after 5 seconds
+}
+
+void ConfigureInput::keyPressEvent(QKeyEvent* event) {
+    releaseKeyboard();
+    releaseMouse();
+
+    if (!key_setter || !event)
+        return;
+
+    if (event->key() != Qt::Key_Escape)
+        (*key_setter)(event->key());
+
+    updateButtonLabels();
+    key_setter = boost::none;
+    timer->stop();
+}