Implement Recent files list and menu

1 files changed, 54 insertions, 0 deletions

diff --git a/src/recent_files.h b/src/recent_files.h
new file mode 100644
index 0000000..7edfb3d
--- /dev/null
+++ b/src/recent_files.h
@@ -0,0 +1,54 @@
+#pragma once
+#include "src/settings_interface.h"
+#include <QStringList>
+#include <QMenu>
+#include <memory>
+
+class RecentFiles {
+public:
+    // QAction extension to signal file path
+    class Action;
+
+    // size: length of the list before removing older files
+    // force_empty: work from an empty list
+    RecentFiles(unsigned int size = 10, bool force_empty = false);
+    // Note: recent files list is committed on destruction
+    ~RecentFiles();
+
+    // Submit a file to the recent files list
+    // It will not be added if it's already in the list
+    void add_file(const QString& path);
+
+    // Get the list of recent files
+    const QStringList& get_files();
+
+    // Clear the list of recent files
+    void clear();
+
+    // Create a QMenu with the list of recent files
+    // The caller is responsable of managing the pointer's lifetime. It works like any other QMnenu, but is already populated.
+    // title: the text shown
+    // parent: the QMenu's parent
+    typedef std::shared_ptr<QMenu> QMenuPtr;
+    QMenuPtr create_menu(const QString& title, QWidget* parent = nullptr);
+
+private:
+    SettingsInterface settings_interface;
+    QStringList list;
+    unsigned int size;
+    bool has_list_changed = false;
+
+    QMenuPtr menu;
+
+    void generate_menu_actions();
+};
+
+class RecentFiles::Action : public QAction {
+    Q_OBJECT
+public:
+    Action(const QString &text, QObject *parent = nullptr);
+    QString file_path;
+
+signals:
+    void chosen_file(const QString& file_path);
+};