implement browser, main widget db session

src/app/browser.cpp

@@ -8,6 +8,11 @@ Browser::Browser(
     sqlite3 * db,
     const Glib::RefPtr<Gtk::Application> & APP
 ) {
+    // Init database
+    DB::SESSION::init(
+        this->db = db
+    );
+
     // Init window actions
     const auto ACTION__UPDATE = add_action(
         "update",
@@ -26,7 +31,7 @@ Browser::Browser(
         "clean",
         [this]
         {
-            browserMain->clean();
+            clean();
         }
     );
 
@@ -34,7 +39,7 @@ Browser::Browser(
         "restore",
         [this]
         {
-            browserMain->restore();
+            restore();
         }
     );
 
@@ -42,7 +47,7 @@ Browser::Browser(
         "save",
         [this]
         {
-            browserMain->save();
+            save();
         }
     );
 
@@ -232,10 +237,17 @@ Browser::Browser(
         );
 
     // Connect signals
+    signal_realize().connect(
+        [this]
+        {
+            restore(); // last session from DB
+        }
+    );
+
     signal_close_request().connect(
         [this]
         {
-            browserMain->save();
+            save();
 
             // @TODO sqlite3_close(db);
 
@@ -243,4 +255,197 @@ Browser::Browser(
         },
         true
     );
+}
+
+// Actions
+int Browser::restore()
+{
+    sqlite3_stmt* statement; // @TODO move to the DB model namespace
+
+    const int PREPARE_STATUS = sqlite3_prepare_v3(
+        db,
+        R"SQL(
+            SELECT * FROM `app_browser__session` ORDER BY `page_number` ASC
+        )SQL",
+        -1,
+        SQLITE_PREPARE_NORMALIZE,
+        &statement,
+        nullptr
+    );
+
+    if (PREPARE_STATUS == SQLITE_OK)
+    {
+        while (sqlite3_step(statement) == SQLITE_ROW)
+        {
+            // Restore widget settings
+            set_default_size( // @TODO actualize
+                sqlite3_column_int(
+                    statement,
+                    DB::SESSION::WIDTH
+                ),
+                sqlite3_column_int(
+                    statement,
+                    DB::SESSION::HEIGHT
+                )
+            );
+
+            // Restore children components
+            browserMain->restore(
+                sqlite3_column_int(
+                    statement,
+                    DB::SESSION::ID
+                )
+            );
+        }
+    }
+
+    return sqlite3_finalize(
+        statement
+    );
+}
+
+void Browser::clean()
+{
+    DB::SESSION::clean(
+        db
+    );
+}
+
+void Browser::save()
+{
+    char * error; // @TODO
+
+    // Delete previous data
+    DB::SESSION::clean(
+        db
+    ); // @TODO run on background
+
+    // Create new session
+    const sqlite3_int64 APP_BROWSER__SESSION__ID = DB::SESSION::add(
+        db,
+        get_width(),
+        get_height(),
+        false // @TODO full screen status
+    );
+
+    // Delegate save actions to children components
+    browserMain->save(
+        APP_BROWSER__SESSION__ID
+    );
+}
+
+// Database
+int Browser::DB::SESSION::init(
+    sqlite3 * db
+) {
+    char * error;
+
+    return sqlite3_exec(
+        db,
+        R"SQL(
+            CREATE TABLE IF NOT EXISTS `app_browser__session`
+            (
+                `id`             INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
+                `time`           INTEGER NOT NULL DEFAULT CURRENT_TIMESTAMP,
+                `width`          INTEGER NOT NULL,
+                `height`         INTEGER NOT NULL,
+                `is_full_screen` INTEGER NOT NULL
+            )
+        )SQL",
+        nullptr,
+        nullptr,
+        &error
+    );
+}
+
+int Browser::DB::SESSION::clean(
+    sqlite3 * db
+) {
+    char * error; // @TODO
+    sqlite3_stmt * statement;
+
+    const int PREPARE_STATUS = sqlite3_prepare_v3(
+        db,
+        R"SQL(
+            SELECT * FROM `app_browser__session`
+        )SQL",
+        -1,
+        SQLITE_PREPARE_NORMALIZE,
+        &statement,
+        nullptr
+    );
+
+    if (PREPARE_STATUS == SQLITE_OK)
+    {
+        while (sqlite3_step(statement) == SQLITE_ROW)
+        {
+            const sqlite3_int64 APP_BROWSER__SESSION__ID = sqlite3_column_int64(
+                statement,
+                DB::SESSION::ID
+            );
+
+            // Delete record
+            const int EXEC_STATUS = sqlite3_exec(
+                db,
+                Glib::ustring::sprintf(
+                    R"SQL(
+                        DELETE FROM `app_browser__session` WHERE `id` = %d
+                    )SQL",
+                    APP_BROWSER__SESSION__ID
+                ).c_str(),
+                nullptr,
+                nullptr,
+                &error
+            );
+
+            // Delegate children dependencies cleanup
+            if (EXEC_STATUS == SQLITE_OK)
+            {
+                browser::Main::DB::SESSION::clean(
+                    db,
+                    APP_BROWSER__SESSION__ID
+                );
+            }
+        }
+    }
+
+    return sqlite3_finalize(
+        statement
+    );
+}
+
+sqlite3_int64 Browser::DB::SESSION::add(
+    sqlite3 * db,
+    const int & WIDTH,
+    const int & HEIGHT,
+    const bool & IS_FULL_SCREEN
+) {
+    char * error; // @TODO
+
+    sqlite3_exec(
+        db,
+        Glib::ustring::sprintf(
+            R"SQL(
+                INSERT INTO `app_browser__session` (
+                    `width`,
+                    `height`,
+                    `is_full_screen`
+                ) VALUES (
+                    %d,
+                    %d,
+                    %d
+                )
+            )SQL",
+            WIDTH,
+            HEIGHT,
+            IS_FULL_SCREEN ? 1 : 0
+        ).c_str(),
+        nullptr,
+        nullptr,
+        &error
+    );
+
+    return sqlite3_last_insert_rowid(
+        db
+    );
 }

src/app/browser.hpp

@@ -24,20 +24,76 @@ namespace app
 
     class Browser : public Gtk::ApplicationWindow
     {
-        // Components
-        app::browser::Header * browserHeader;
-        app::browser::Main * browserMain;
+        public:
+
+            /*
+             * Tab class database
+             *
+             * Allowed parental access to enums and relationship methods
+             */
+            struct DB
+            {
+                // APP_BROWSER_MAIN_TAB__*
+                struct SESSION
+                {
+                    enum
+                    {
+                        ID,
+                        TIME,
+                        WIDTH,
+                        HEIGHT,
+                        IS_FULL_SCREEN
+                    }; // table fields index
+
+                    static int init(
+                        sqlite3 * db
+                    ); // return sqlite3_exec status code
+
+                    static int clean(
+                        sqlite3 * db
+                    ); // return sqlite3_finalize status code
+
+                    static sqlite3_int64 add(
+                        sqlite3 * db,
+                        const int & WIDTH,
+                        const int & HEIGHT,
+                        const bool & IS_FULL_SCREEN
+                    ); // return sqlite3_last_insert_rowid
+                };
+            };
+
+        /*
+         * Internal members
+         */
+        private:
 
-        // Defaults
-        const int WIDTH = 640;
-        const int HEIGHT = 480;
+            // Database
+            sqlite3 * db;
 
+            // Components
+            app::browser::Header * browserHeader;
+            app::browser::Main * browserMain;
+
+            // Defaults
+            const int WIDTH = 640;
+            const int HEIGHT = 480;
+
+        /*
+         * Browser class API
+         */
         public:
 
             Browser(
                 sqlite3 * db,
                 const Glib::RefPtr<Gtk::Application> & APP
             );
+
+            // Actions
+            int restore(); // return sqlite3_finalize status code
+
+            void clean();
+
+            void save();
     };
 }
 

src/app/browser/main.cpp

@@ -12,6 +12,11 @@ Main::Main(
     const Glib::RefPtr<Gio::SimpleAction> & ACTION__MAIN_TAB_PAGE_NAVIGATION_HISTORY_FORWARD,
     const Glib::RefPtr<Gio::SimpleAction> & ACTION__MAIN_TAB_PAGE_NAVIGATION_RELOAD
 ) {
+    // Init database
+    DB::SESSION::init(
+        this->db = db
+    );
+
     // Init widget
     set_orientation(
         Gtk::Orientation::VERTICAL
@@ -40,19 +45,73 @@ Main::Main(
 // Actions
 
 /// Session
-void Main::clean()
-{
-    mainTab->clean();
+void Main::clean(
+    const sqlite3_int64 & APP_BROWSER__SESSION__ID
+) {
+    DB::SESSION::clean(
+        db,
+        APP_BROWSER__SESSION__ID
+    );
+
+    mainTab->close_all();
 };
 
-void Main::restore()
-{
-    mainTab->restore();
+int Main::restore(
+    const sqlite3_int64 & APP_BROWSER__SESSION__ID
+) {
+    sqlite3_stmt* statement; // @TODO move to the DB model namespace
+
+    const int PREPARE_STATUS = sqlite3_prepare_v3(
+        db,
+        Glib::ustring::sprintf(
+            R"SQL(
+                SELECT * FROM `app_browser_main__session`
+                        WHERE `app_browser__session_id` = %d
+            )SQL",
+            APP_BROWSER__SESSION__ID
+        ).c_str(),
+        -1,
+        SQLITE_PREPARE_NORMALIZE,
+        &statement,
+        nullptr
+    );
+
+    if (PREPARE_STATUS == SQLITE_OK)
+    {
+        while (sqlite3_step(statement) == SQLITE_ROW)
+        {
+            mainTab->restore(
+                DB::SESSION::ID
+            );
+        }
+    }
+
+    return sqlite3_finalize(
+        statement
+    );
 };
 
-void Main::save()
-{
-    mainTab->save();
+void Main::save(
+    const sqlite3_int64 & APP_BROWSER__SESSION__ID
+) {
+    char * error; // @TODO
+
+    // Delete previous data
+    DB::SESSION::clean(
+        db,
+        APP_BROWSER__SESSION__ID
+    ); // @TODO run on background
+
+    // Create new session
+    const sqlite3_int64 APP_BROWSER_MAIN__SESSION__ID = DB::SESSION::add(
+        db,
+        APP_BROWSER__SESSION__ID
+    );
+
+    // Delegate save actions to children components
+    mainTab->save(
+        APP_BROWSER_MAIN__SESSION__ID
+    );
 };
 
 /// Tab actions
@@ -130,4 +189,116 @@ Glib::ustring Main::get_tab_page_description()
     return mainTab->get_page_description(
         mainTab->get_current_page()
     );
-};
+};
+
+
+// Database
+int Main::DB::SESSION::init(
+    sqlite3 * db
+) {
+    char * error;
+
+    return sqlite3_exec(
+        db,
+        R"SQL(
+            CREATE TABLE IF NOT EXISTS `app_browser_main__session`
+            (
+                `id`                       INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
+                `time`                     INTEGER NOT NULL DEFAULT CURRENT_TIMESTAMP,
+                `app_browser__session__id` INTEGER NOT NULL
+            )
+        )SQL",
+        nullptr,
+        nullptr,
+        &error
+    );
+}
+
+int Main::DB::SESSION::clean(
+    sqlite3 * db,
+    const sqlite3_int64 & APP_BROWSER__SESSION__ID
+) {
+    char * error; // @TODO
+    sqlite3_stmt * statement;
+
+    const int PREPARE_STATUS = sqlite3_prepare_v3(
+        db,
+        Glib::ustring::sprintf(
+            R"SQL(
+                SELECT * FROM `app_browser_main__session`
+                        WHERE `app_browser__session__id` = %d
+            )SQL",
+            APP_BROWSER__SESSION__ID
+        ).c_str(),
+        -1,
+        SQLITE_PREPARE_NORMALIZE,
+        &statement,
+        nullptr
+    );
+
+    if (PREPARE_STATUS == SQLITE_OK)
+    {
+        while (sqlite3_step(statement) == SQLITE_ROW)
+        {
+            const sqlite3_int64 APP_BROWSER_MAIN__SESSION__ID = sqlite3_column_int64(
+                statement,
+                DB::SESSION::ID
+            );
+
+            // Delete record
+            const int EXEC_STATUS = sqlite3_exec(
+                db,
+                Glib::ustring::sprintf(
+                    R"SQL(
+                        DELETE FROM `app_browser_main__session` WHERE `id` = %d
+                    )SQL",
+                    APP_BROWSER_MAIN__SESSION__ID
+                ).c_str(),
+                nullptr,
+                nullptr,
+                &error
+            );
+
+            // Delegate children dependencies cleanup
+            if (EXEC_STATUS == SQLITE_OK)
+            {
+                main::Tab::DB::SESSION::clean(
+                    db,
+                    APP_BROWSER_MAIN__SESSION__ID
+                );
+            }
+        }
+    }
+
+    return sqlite3_finalize(
+        statement
+    );
+}
+
+sqlite3_int64 Main::DB::SESSION::add(
+    sqlite3 * db,
+    const sqlite3_int64 & APP_BROWSER__SESSION__ID
+) {
+    char * error; // @TODO
+
+    sqlite3_exec(
+        db,
+        Glib::ustring::sprintf(
+            R"SQL(
+                INSERT INTO `app_browser_main__session` (
+                    `app_browser_main__session__id`
+                ) VALUES (
+                    %d
+                )
+            )SQL",
+            APP_BROWSER__SESSION__ID
+        ).c_str(),
+        nullptr,
+        nullptr,
+        &error
+    );
+
+    return sqlite3_last_insert_rowid(
+        db
+    );
+}

src/app/browser/main.hpp

@@ -18,12 +18,58 @@ namespace app::browser
 
     class Main : public Gtk::Box
     {
-        // Components
-        main::Tab * mainTab;
+        public:
+
+            /*
+             * Tab class database
+             *
+             * Allowed parental access to enums and relationship methods
+             */
+            struct DB
+            {
+                // APP_BROWSER_MAIN__*
+                struct SESSION
+                {
+                    enum
+                    {
+                        ID,
+                        TIME
+                    }; // table fields index
+
+                    static int init(
+                        sqlite3 * db
+                    ); // return sqlite3_exec status code
+
+                    static int clean(
+                        sqlite3 * db,
+                        const sqlite3_int64 & APP_BROWSER__SESSION__ID
+                    ); // return sqlite3_finalize status code
+
+                    static sqlite3_int64 add(
+                        sqlite3 * db,
+                        const sqlite3_int64 & APP_BROWSER__SESSION__ID
+                    ); // return sqlite3_last_insert_rowid
+
+                };
+            };
+
+        /*
+         * Internal members
+         */
+        private:
+
+            // Database
+            sqlite3 * db;
 
-        // Defaults
-        const bool HOMOGENEOUS = true;
+            // Components
+            main::Tab * mainTab;
 
+            // Defaults
+            const bool HOMOGENEOUS = true;
+
+        /*
+         * Main class API
+         */
         public:
 
             Main(
@@ -37,10 +83,6 @@ namespace app::browser
             );
 
             // Actions
-            void clean();
-            void restore();
-            void save();
-
             void tab_append();
 
             void tab_close_all();
@@ -52,6 +94,18 @@ namespace app::browser
                 void tab_page_navigation_history_back();
                 void tab_page_navigation_history_forward();
 
+            int restore(
+                const sqlite3_int64 & APP_BROWSER__SESSION__ID
+            ); // return sqlite3_finalize status code
+
+            void clean(
+                const sqlite3_int64 & APP_BROWSER__SESSION__ID
+            );
+
+            void save(
+                const sqlite3_int64 & APP_BROWSER__SESSION__ID
+            );
+
             void update();
 
             // Getters

src/app/browser/main/tab.cpp

@@ -31,14 +31,6 @@ Tab::Tab(
         SCROLLABLE
     );
 
-    // Init events
-    signal_realize().connect(
-        [this]
-        {
-            restore(); // last session from DB
-        }
-    );
-
     signal_switch_page().connect(
         [this](Gtk::Widget*, guint)
         {
@@ -48,15 +40,20 @@ Tab::Tab(
     );
 }
 
-int Tab::restore()
-{
+int Tab::restore(
+    const sqlite3_int64 & APP_BROWSER_MAIN__SESSION__ID
+) {
     sqlite3_stmt* statement; // @TODO move to the DB model namespace
 
     const int PREPARE_STATUS = sqlite3_prepare_v3(
         db,
-        R"SQL(
-            SELECT * FROM `app_browser_main_tab__session` ORDER BY `page_number` ASC
-        )SQL",
+        Glib::ustring::sprintf(
+            R"SQL(
+                SELECT * FROM `app_browser_main_tab__session`
+                        WHERE `app_browser_main__session_id` = %d ORDER BY `page_number` ASC
+            )SQL",
+            APP_BROWSER_MAIN__SESSION__ID
+        ).c_str(),
         -1,
         SQLITE_PREPARE_NORMALIZE,
         &statement,
@@ -103,22 +100,15 @@ int Tab::restore()
     );
 }
 
-void Tab::clean() // @TODO menu action?
-{
-    DB::SESSION::clean(
-        db
-    );
-
-    close_all();
-}
-
-void Tab::save()
-{
+void Tab::save(
+    const sqlite3_int64 & APP_BROWSER_MAIN__SESSION__ID
+) {
     char * error; // @TODO
 
     // Delete previous data
     DB::SESSION::clean(
-        db
+        db,
+        APP_BROWSER_MAIN__SESSION__ID
     ); // @TODO run on background
 
     // Save current tab session
@@ -127,6 +117,7 @@ void Tab::save()
         // Create new session
         const sqlite3_int64 APP_BROWSER_MAIN_TAB__SESSION__ID = DB::SESSION::add(
             db,
+            APP_BROWSER_MAIN__SESSION__ID,
             page_number,
             page_number == get_current_page() ? 1 : 0
         );
@@ -377,16 +368,21 @@ int Tab::DB::SESSION::init(
 }
 
 int Tab::DB::SESSION::clean(
-    sqlite3 * db
+    sqlite3 * db,
+    const sqlite3_int64 & APP_BROWSER_MAIN__SESSION__ID
 ) {
     char * error; // @TODO
     sqlite3_stmt * statement;
 
     const int PREPARE_STATUS = sqlite3_prepare_v3(
         db,
-        R"SQL(
-            SELECT * FROM `app_browser_main_tab__session`
-        )SQL",
+        Glib::ustring::sprintf(
+            R"SQL(
+                SELECT * FROM `app_browser_main_tab__session`
+                        WHERE `app_browser_main_tab__session_id` = %d
+            )SQL",
+            APP_BROWSER_MAIN__SESSION__ID
+        ).c_str(),
         -1,
         SQLITE_PREPARE_NORMALIZE,
         &statement,
@@ -439,6 +435,7 @@ int Tab::DB::SESSION::clean(
 
 sqlite3_int64 Tab::DB::SESSION::add(
     sqlite3 * db,
+    const sqlite3_int64 & APP_BROWSER_MAIN__SESSION__ID,
     const int & PAGE_NUMBER,
     const bool & IS_CURRENT
 ) {
@@ -449,13 +446,16 @@ sqlite3_int64 Tab::DB::SESSION::add(
         Glib::ustring::sprintf(
             R"SQL(
                 INSERT INTO `app_browser_main_tab__session` (
+                    `app_browser_main__session_id`,
                     `page_number`,
                     `is_current`
                 ) VALUES (
+                    %d,
                     %d,
                     %d
                 )
             )SQL",
+            APP_BROWSER_MAIN__SESSION__ID,
             PAGE_NUMBER,
             IS_CURRENT
         ).c_str(),

src/app/browser/main/tab.hpp

@@ -43,11 +43,13 @@ namespace app::browser::main
                     ); // return sqlite3_exec status code
 
                     static int clean(
-                        sqlite3 * db
+                        sqlite3 * db,
+                        const sqlite3_int64 & APP_BROWSER_MAIN__SESSION__ID
                     ); // return sqlite3_finalize status code
 
                     static sqlite3_int64 add(
                         sqlite3 * db,
+                        const sqlite3_int64 & APP_BROWSER_MAIN__SESSION__ID,
                         const int & PAGE_NUMBER,
                         const bool & IS_CURRENT
                     ); // return sqlite3_last_insert_rowid
@@ -121,11 +123,13 @@ namespace app::browser::main
                 const int & PAGE_NUMBER
             );
 
-            int restore(); // return sqlite3_finalize status code
+            int restore(
+                const sqlite3_int64 & APP_BROWSER_MAIN__SESSION__ID
+            ); // return sqlite3_finalize status code
 
-            void clean();
-
-            void save();
+            void save(
+                const sqlite3_int64 & APP_BROWSER_MAIN__SESSION__ID
+            );
 
             // Getters
             Glib::ustring get_page_title(