implement session save/restore for page meta data

README.md

@@ -28,10 +28,13 @@ GTK 4 / Libadwaita client written in Rust
     * [x] Tabs
       * [x] Pin
       * [x] Page
+        * [ ] Content (cache)
+        * [x] Meta
+          * [x] Title
         * [ ] Navigation
           * [x] Request
           * [ ] History
-        * [ ] Content (cache)
+
 * [ ] User settings
 
 ### Protocols

src/app/browser/window/tab/item/page.rs

@@ -301,6 +301,7 @@ impl Page {
                     match Database::delete(transaction, &record.id) {
                         Ok(_) => {
                             // Delegate clean action to the item childs
+                            self.meta.clean(transaction, &record.id)?;
                             self.navigation.clean(transaction, &record.id)?;
                         }
                         Err(e) => return Err(e.to_string()),
@@ -322,6 +323,7 @@ impl Page {
             Ok(records) => {
                 for record in records {
                     // Delegate restore action to the item childs
+                    self.meta.restore(transaction, &record.id)?;
                     self.navigation.restore(transaction, &record.id)?;
                 }
             }
@@ -341,6 +343,7 @@ impl Page {
                 let id = Database::last_insert_id(transaction);
 
                 // Delegate save action to childs
+                self.meta.save(transaction, &id)?;
                 self.navigation.save(transaction, &id)?;
             }
             Err(e) => return Err(e.to_string()),
@@ -396,6 +399,7 @@ impl Page {
         }
 
         // Delegate migration to childs
+        Meta::migrate(tx)?;
         Navigation::migrate(tx)?;
 
         // Success

src/app/browser/window/tab/item/page/meta.rs

@@ -1,7 +1,11 @@
+mod database;
 mod redirect;
+
+use database::Database;
 use redirect::Redirect;
 
 use gtk::glib::GString;
+use sqlite::Transaction;
 use std::{cell::RefCell, sync::Arc};
 
 #[derive(Debug, Clone)]
@@ -98,4 +102,94 @@ impl Meta {
     pub fn take_redirect(&self) -> Option<Redirect> {
         self.redirect.take()
     }
+
+    // Actions
+
+    pub fn clean(
+        &self,
+        transaction: &Transaction,
+        app_browser_window_tab_page_id: &i64,
+    ) -> Result<(), String> {
+        match Database::records(transaction, app_browser_window_tab_page_id) {
+            Ok(records) => {
+                for record in records {
+                    match Database::delete(transaction, &record.id) {
+                        Ok(_) => {
+                            // Delegate clean action to the item childs
+                            // nothing yet..
+                        }
+                        Err(e) => return Err(e.to_string()),
+                    }
+                }
+            }
+            Err(e) => return Err(e.to_string()),
+        }
+
+        Ok(())
+    }
+
+    pub fn restore(
+        &self,
+        transaction: &Transaction,
+        app_browser_window_tab_page_id: &i64,
+    ) -> Result<(), String> {
+        match Database::records(transaction, app_browser_window_tab_page_id) {
+            Ok(records) => {
+                for record in records {
+                    // Record value can be stored as NULL
+                    if let Some(title) = record.title {
+                        self.set_title(title.as_str());
+                    }
+
+                    // Delegate restore action to the item childs
+                    // nothing yet..
+                }
+            }
+            Err(e) => return Err(e.to_string()),
+        }
+
+        Ok(())
+    }
+
+    pub fn save(
+        &self,
+        transaction: &Transaction,
+        app_browser_window_tab_page_id: &i64,
+    ) -> Result<(), String> {
+        // Keep value in memory until operation complete
+        let title = self.title();
+
+        match Database::add(
+            transaction,
+            app_browser_window_tab_page_id,
+            match title.is_empty() {
+                true => None,
+                false => Some(title.as_str()),
+            },
+        ) {
+            Ok(_) => {
+                // let id = Database::last_insert_id(transaction);
+
+                // Delegate save action to childs
+                // nothing yet..
+            }
+            Err(e) => return Err(e.to_string()),
+        }
+
+        Ok(())
+    }
+
+    // Tools
+    pub fn migrate(tx: &Transaction) -> Result<(), String> {
+        // Migrate self components
+        if let Err(e) = Database::init(&tx) {
+            return Err(e.to_string());
+        }
+
+        // Delegate migration to childs
+        // nothing yet..
+
+        // Success
+        Ok(())
+    }
 }

src/app/browser/window/tab/item/page/meta/database.rs

@@ -0,0 +1,81 @@
+use sqlite::{Error, Transaction};
+
+pub struct Table {
+    pub id: i64,
+    // pub app_browser_window_tab_item_page_id: i64, not in use
+    pub title: Option<String>, // can be stored as NULL
+}
+
+pub struct Database {
+    // nothing yet..
+}
+
+impl Database {
+    pub fn init(tx: &Transaction) -> Result<usize, Error> {
+        tx.execute(
+            "CREATE TABLE IF NOT EXISTS `app_browser_window_tab_item_page_meta`
+            (
+                `id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
+                `app_browser_window_tab_item_page_id` INTEGER NOT NULL,
+                `title` VARCHAR(1024)
+            )",
+            [],
+        )
+    }
+
+    pub fn add(
+        tx: &Transaction,
+        app_browser_window_tab_item_page_id: &i64,
+        title: Option<&str>,
+    ) -> Result<usize, Error> {
+        tx.execute(
+            "INSERT INTO `app_browser_window_tab_item_page_meta` (
+                `app_browser_window_tab_item_page_id`,
+                `title`
+            ) VALUES (?, ?)",
+            (app_browser_window_tab_item_page_id, title),
+        )
+    }
+
+    pub fn records(
+        tx: &Transaction,
+        app_browser_window_tab_item_page_id: &i64,
+    ) -> Result<Vec<Table>, Error> {
+        let mut stmt = tx.prepare(
+            "SELECT `id`,
+                    `app_browser_window_tab_item_page_id`,
+                    `title`
+                    FROM `app_browser_window_tab_item_page_meta`
+                    WHERE `app_browser_window_tab_item_page_id` = ?",
+        )?;
+
+        let result = stmt.query_map([app_browser_window_tab_item_page_id], |row| {
+            Ok(Table {
+                id: row.get(0)?,
+                // app_browser_window_tab_item_page_id: row.get(1)?, not in use
+                title: row.get(2)?,
+            })
+        })?;
+
+        let mut records = Vec::new();
+
+        for record in result {
+            let table = record?;
+            records.push(table);
+        }
+
+        Ok(records)
+    }
+
+    pub fn delete(tx: &Transaction, id: &i64) -> Result<usize, Error> {
+        tx.execute(
+            "DELETE FROM `app_browser_window_tab_item_page_meta` WHERE `id` = ?",
+            [id],
+        )
+    }
+
+    /* not in use
+    pub fn last_insert_id(tx: &Transaction) -> i64 {
+        tx.last_insert_rowid()
+    } */
+}