qt/hotkey: Get rid of global hotkey map instance

Instead, we make a proper registry class and house it within the main
window, then pass it to whatever needs access to the loaded hotkeys.

This way, we avoid a global variable, and don't need to initialize a
std::map instance before the program can do anything.

1 files changed, 66 insertions, 41 deletions

diff --git a/src/yuzu/hotkeys.h b/src/yuzu/hotkeys.h
index a4ccc193b..f38e6c002 100644
--- a/src/yuzu/hotkeys.h
+++ b/src/yuzu/hotkeys.h
@@ -4,6 +4,7 @@
 
 #pragma once
 
+#include <map>
 #include "ui_hotkeys.h"
 
 class QDialog;
@@ -11,47 +12,69 @@ class QKeySequence;
 class QSettings;
 class QShortcut;
 
-/**
- * Register a hotkey.
- *
- * @param group General group this hotkey belongs to (e.g. "Main Window", "Debugger")
- * @param action Name of the action (e.g. "Start Emulation", "Load Image")
- * @param default_keyseq Default key sequence to assign if the hotkey wasn't present in the settings
- * file before
- * @param default_context Default context to assign if the hotkey wasn't present in the settings
- * file before
- * @warning Both the group and action strings will be displayed in the hotkey settings dialog
- */
-void RegisterHotkey(const QString& group, const QString& action,
-                    const QKeySequence& default_keyseq = QKeySequence(),
-                    Qt::ShortcutContext default_context = Qt::WindowShortcut);
-
-/**
- * Returns a QShortcut object whose activated() signal can be connected to other QObjects' slots.
- *
- * @param group  General group this hotkey belongs to (e.g. "Main Window", "Debugger").
- * @param action Name of the action (e.g. "Start Emulation", "Load Image").
- * @param widget Parent widget of the returned QShortcut.
- * @warning If multiple QWidgets' call this function for the same action, the returned QShortcut
- * will be the same. Thus, you shouldn't rely on the caller really being the QShortcut's parent.
- */
-QShortcut* GetHotkey(const QString& group, const QString& action, QWidget* widget);
-
-/**
- * Saves all registered hotkeys to the settings file.
- *
- * @note Each hotkey group will be stored a settings group; For each hotkey inside that group, a
- * settings group will be created to store the key sequence and the hotkey context.
- */
-void SaveHotkeys();
-
-/**
- * Loads hotkeys from the settings file.
- *
- * @note Yet unregistered hotkeys which are present in the settings will automatically be
- * registered.
- */
-void LoadHotkeys();
+class HotkeyRegistry final {
+public:
+    friend class GHotkeysDialog;
+
+    explicit HotkeyRegistry();
+    ~HotkeyRegistry();
+
+    /**
+     * Loads hotkeys from the settings file.
+     *
+     * @note Yet unregistered hotkeys which are present in the settings will automatically be
+     *       registered.
+     */
+    void LoadHotkeys();
+
+    /**
+     * Saves all registered hotkeys to the settings file.
+     *
+     * @note Each hotkey group will be stored a settings group; For each hotkey inside that group, a
+     *       settings group will be created to store the key sequence and the hotkey context.
+     */
+    void SaveHotkeys();
+
+    /**
+     * Returns a QShortcut object whose activated() signal can be connected to other QObjects'
+     * slots.
+     *
+     * @param group  General group this hotkey belongs to (e.g. "Main Window", "Debugger").
+     * @param action Name of the action (e.g. "Start Emulation", "Load Image").
+     * @param widget Parent widget of the returned QShortcut.
+     * @warning If multiple QWidgets' call this function for the same action, the returned QShortcut
+     *          will be the same. Thus, you shouldn't rely on the caller really being the
+     *          QShortcut's parent.
+     */
+    QShortcut* GetHotkey(const QString& group, const QString& action, QWidget* widget);
+
+    /**
+     * Register a hotkey.
+     *
+     * @param group General group this hotkey belongs to (e.g. "Main Window", "Debugger")
+     * @param action Name of the action (e.g. "Start Emulation", "Load Image")
+     * @param default_keyseq Default key sequence to assign if the hotkey wasn't present in the
+     *                       settings file before
+     * @param default_context Default context to assign if the hotkey wasn't present in the settings
+     *                        file before
+     * @warning Both the group and action strings will be displayed in the hotkey settings dialog
+     */
+    void RegisterHotkey(const QString& group, const QString& action,
+                        const QKeySequence& default_keyseq = {},
+                        Qt::ShortcutContext default_context = Qt::WindowShortcut);
+
+private:
+    struct Hotkey {
+        QKeySequence keyseq;
+        QShortcut* shortcut = nullptr;
+        Qt::ShortcutContext context = Qt::WindowShortcut;
+    };
+
+    using HotkeyMap = std::map<QString, Hotkey>;
+    using HotkeyGroupMap = std::map<QString, HotkeyMap>;
+
+    HotkeyGroupMap hotkey_groups;
+};
 
 class GHotkeysDialog : public QWidget {
     Q_OBJECT
@@ -59,6 +82,8 @@ class GHotkeysDialog : public QWidget {
 public:
     explicit GHotkeysDialog(QWidget* parent = nullptr);
 
+    void Populate(const HotkeyRegistry& registry);
+
 private:
     Ui::hotkeys ui;
 };