SnapshotListBox.vala

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using Gtk;
using Gee;
 
using TeeJee.Logging;
using TeeJee.FileSystem;
using TeeJee.JsonHelper;
using TeeJee.ProcessHelper;
using TeeJee.GtkHelper;
using TeeJee.System;
using TeeJee.Misc;
 
class SnapshotRow : Gtk.ListBoxRow {
    public Snapshot snapshot;
    public Gtk.CheckButton check;
    private Gtk.Entry desc_entry;
 
    public SnapshotRow(Snapshot bak) {
        snapshot = bak;
        build_ui();
    }
 
    private void build_ui() {
        var outer = new Gtk.Box(Gtk.Orientation.VERTICAL, 2);
        outer.margin_top = 5;
        outer.margin_bottom = 5;
        outer.margin_start = 8;
        outer.margin_end = 8;
        set_child(outer);
 
        var top = new Gtk.Box(Gtk.Orientation.HORIZONTAL, 8);
        outer.append(top);
 
        check = new Gtk.CheckButton();
        check.valign = Gtk.Align.START;
        top.append(check);
 
        var info = new Gtk.Box(Gtk.Orientation.VERTICAL, 2);
        info.hexpand = true;
        top.append(info);
 
        var title = new Gtk.Label(null);
        title.use_markup = true;
        title.wrap = true;
        title.xalign = 0.0f;
        string line1 = GLib.Markup.escape_text(snapshot.date_formatted);
        if (snapshot.live) {
            line1 = "<b>%s</b>".printf(line1);
        }
        title.label = line1;
        info.append(title);
 
        var meta = new Gtk.Label(build_meta_text());
        meta.wrap = true;
        meta.xalign = 0.0f;
        meta.add_css_class("dim-label");
        info.append(meta);
 
        desc_entry = new Gtk.Entry();
        desc_entry.placeholder_text = _("Comments");
        desc_entry.text = snapshot.description ?? "";
        desc_entry.sensitive = !snapshot.marked_for_deletion;
        // Mostra il campo commento solo se ha contenuto o se esplicitamente visibile
        desc_entry.visible = (snapshot.description != null && snapshot.description.length > 0);
        desc_entry.changed.connect(() => {
            if (snapshot.description != desc_entry.text) {
                snapshot.description = desc_entry.text;
                snapshot.update_control_file();
            }
        });
        info.append(desc_entry);
 
        // Mostra campo commento al click del checkbox
        check.toggled.connect(() => {
            if (check.active) {
                desc_entry.visible = true;
            } else if (snapshot.description == null || snapshot.description.length == 0) {
                desc_entry.visible = false;
            }
        });
 
        if (snapshot.marked_for_deletion) {
            add_css_class("error");
        }
    }
 
    private string build_meta_text() {
        var parts = new Gee.ArrayList<string>();
        if ((snapshot.sys_distro ?? "").length > 0) {
            parts.add(snapshot.sys_distro.replace("LinuxMint", "Linux Mint"));
        }
        if ((snapshot.taglist_short ?? "").length > 0) {
            parts.add(_("Tags") + ": " + snapshot.taglist_short);
        }
        if (snapshot.btrfs_mode) {
            int64 size = 0;
            int64 unshared = 0;
            if (snapshot.subvolumes.has_key("@")) {
                size += snapshot.subvolumes["@"].total_bytes;
                unshared += snapshot.subvolumes["@"].unshared_bytes;
            }
            if (snapshot.subvolumes.has_key("@home")) {
                size += snapshot.subvolumes["@home"].total_bytes;
                unshared += snapshot.subvolumes["@home"].unshared_bytes;
            }
            parts.add(_("Size") + ": " + format_file_size(size));
            if (App.btrfs_qgroups_enabled) {
                parts.add(_("Unshared") + ": " + format_file_size(unshared));
            }
        }
        return string.joinv("  •  ", parts.to_array());
    }
}
 
class SnapshotListBox : Gtk.Box {
    public Gtk.ListBox treeview;
    private Gtk.Window parent_window;
    private Gtk.ListBox listbox;
    private Gtk.ScrolledWindow scrolled;
    private Gtk.Box header_actions;
    private int sort_column_index = 0;
    private bool sort_desc = true;
 
    public signal void delete_selected();
    public signal void mark_selected();
    public signal void browse_selected();
    public signal void view_snapshot_log(bool show_restore_log);
 
    public SnapshotListBox(Gtk.Window _parent_window) {
        GLib.Object(orientation: Gtk.Orientation.VERTICAL, spacing: 6);
        parent_window = _parent_window;
        margin_top = 6;
        margin_bottom = 6;
        margin_start = 6;
        margin_end = 6;
        build_ui();
        refresh();
    }
 
    private void build_ui() {
        header_actions = new Gtk.Box(Gtk.Orientation.HORIZONTAL, 6);
        header_actions.halign = Gtk.Align.END;
        append(header_actions);
 
        add_sort_button(_("Newest"), 0, true);
        add_sort_button(_("System"), 1, false);
        add_sort_button(_("Tags"), 2, false);
 
        listbox = new Gtk.ListBox();
        listbox.selection_mode = Gtk.SelectionMode.NONE;
        listbox.add_css_class("boxed-list");
        listbox.row_activated.connect((row) => {
            var snap_row = row as SnapshotRow;
            if (snap_row != null) {
                snap_row.check.active = !snap_row.check.active;
            }
        });
        treeview = listbox;
 
        scrolled = new Gtk.ScrolledWindow();
        scrolled.set_child(listbox);
        scrolled.vexpand = false;
        scrolled.hexpand = true;
        scrolled.set_min_content_height(100);
        scrolled.set_max_content_height(160);
        scrolled.set_propagate_natural_height(true);
        append(scrolled);
 
        var footer = new Gtk.Box(Gtk.Orientation.HORIZONTAL, 6);
        footer.halign = Gtk.Align.END;
        append(footer);
 
        var btn_browse = new Gtk.Button.with_label(_("Browse Files"));
        btn_browse.add_css_class("btn-info");
        btn_browse.clicked.connect(() => { browse_selected(); });
        footer.append(btn_browse);
 
        var btn_log_create = new Gtk.Button.with_label(_("Rsync Log (Create)"));
        btn_log_create.sensitive = !App.btrfs_mode;
        btn_log_create.add_css_class("btn-primary");
        btn_log_create.clicked.connect(() => { view_snapshot_log(false); });
        footer.append(btn_log_create);
 
        var btn_log_restore = new Gtk.Button.with_label(_("Rsync Log (Restore)"));
        btn_log_restore.sensitive = !App.btrfs_mode;
        btn_log_restore.add_css_class("btn-primary");
        btn_log_restore.clicked.connect(() => { view_snapshot_log(true); });
        footer.append(btn_log_restore);
 
        var btn_mark = new Gtk.Button.with_label(_("Mark/Unmark"));
        btn_mark.add_css_class("btn-warning");
        btn_mark.clicked.connect(() => { mark_selected(); });
        footer.append(btn_mark);
 
        var btn_delete = new Gtk.Button.with_label(_("Delete"));
        btn_delete.add_css_class("btn-danger");
        btn_delete.clicked.connect(() => { delete_selected(); });
        footer.append(btn_delete);
    }
 
    private void add_sort_button(string label, int column, bool default_desc) {
        var btn = new Gtk.Button.with_label(label);
        btn.clicked.connect(() => {
            if (sort_column_index == column) {
                sort_desc = !sort_desc;
            } else {
                sort_column_index = column;
                sort_desc = default_desc;
            }
            refresh();
        });
        header_actions.append(btn);
    }
 
    public void hide_context_menu() {
        // no-op in GTK4 list implementation
    }
 
    private void clear_rows() {
        Gtk.Widget? child = listbox.get_first_child();
        while (child != null) {
            Gtk.Widget? next = child.get_next_sibling();
            listbox.remove(child);
            child = next;
        }
    }
 
    public void refresh() {
        clear_rows();
        if ((App.repo == null) || !App.repo.available()) {
            return;
        }
 
        App.repo.load_snapshots();
        var list = App.repo.snapshots;
 
        if (sort_column_index == 0) {
            if (sort_desc) {
                list.sort((a,b) => ((Snapshot)a).date.compare(((Snapshot)b).date));
            } else {
                list.sort((a,b) => -1 * (((Snapshot)a).date.compare(((Snapshot)b).date)));
            }
        } else if (sort_column_index == 1) {
            if (sort_desc) {
                list.sort((a,b) => strcmp(((Snapshot)b).sys_distro, ((Snapshot)a).sys_distro));
            } else {
                list.sort((a,b) => strcmp(((Snapshot)a).sys_distro, ((Snapshot)b).sys_distro));
            }
        } else {
            if (sort_desc) {
                list.sort((a,b) => strcmp(((Snapshot)b).taglist, ((Snapshot)a).taglist));
            } else {
                list.sort((a,b) => strcmp(((Snapshot)a).taglist, ((Snapshot)b).taglist));
            }
        }
 
        foreach (Snapshot bak in list) {
            listbox.append(new SnapshotRow(bak));
        }
    }
 
    public Gee.ArrayList<Snapshot> selected_snapshots() {
        var list = new Gee.ArrayList<Snapshot>();
        Gtk.Widget? child = listbox.get_first_child();
        while (child != null) {
            var row = child as SnapshotRow;
            if ((row != null) && row.check.active) {
                list.add(row.snapshot);
            }
            child = child.get_next_sibling();
        }
        return list;
    }
}