1 files changed, 147 insertions, 0 deletions
diff --git a/src/library/LibraryBranch.vala b/src/library/LibraryBranch.vala
new file mode 100644
index 0000000..f9113f5
--- /dev/null
+++ b/src/library/LibraryBranch.vala
@@ -0,0 +1,147 @@
+/* Copyright 2016 Software Freedom Conservancy Inc.
+ *
+ * This software is licensed under the GNU Lesser General Public License
+ * (version 2.1 or later).  See the COPYING file in this distribution.
+ */
+
+public class Library.Branch : Sidebar.Branch {
+    private const string POSITION_DATA = "x-photos-entry-position";
+
+    public Library.PhotosEntry photos_entry { get; private set; }
+    public Library.FlaggedSidebarEntry flagged_entry { get; private set; }
+    public Library.LastImportSidebarEntry last_imported_entry { get; private set; }
+    public Library.ImportQueueSidebarEntry import_queue_entry { get; private set; }
+    public Library.OfflineSidebarEntry offline_entry { get; private set; }
+    public Library.TrashSidebarEntry trash_entry { get; private set; }
+    
+    // This lists the order of the library items in the sidebar. To re-order, simply move
+    // the item in this list to a new position. These numbers should *not* persist anywhere
+    // outside the app.
+    private enum EntryPosition {
+        PHOTOS,
+        FLAGGED,
+        LAST_IMPORTED,
+        IMPORT_QUEUE,
+        OFFLINE,
+        TRASH
+    }
+    
+    public Branch() {
+        base(new Sidebar.Header(_("Library"), _("Organize and browse your photos")),
+            Sidebar.Branch.Options.STARTUP_OPEN_GROUPING, comparator);
+
+        photos_entry = new Library.PhotosEntry();
+        trash_entry = new Library.TrashSidebarEntry();
+        last_imported_entry = new Library.LastImportSidebarEntry();
+        flagged_entry = new Library.FlaggedSidebarEntry();
+        offline_entry = new Library.OfflineSidebarEntry();
+        import_queue_entry = new Library.ImportQueueSidebarEntry();
+
+        insert(photos_entry, EntryPosition.PHOTOS);
+        insert(trash_entry, EntryPosition.TRASH);
+
+        flagged_entry.visibility_changed.connect(on_flagged_visibility_changed);
+        on_flagged_visibility_changed();
+
+        last_imported_entry.visibility_changed.connect(on_last_imported_visibility_changed);
+        on_last_imported_visibility_changed();
+
+        import_queue_entry.visibility_changed.connect(on_import_queue_visibility_changed);
+        on_import_queue_visibility_changed();
+
+        offline_entry.visibility_changed.connect(on_offline_visibility_changed);
+        on_offline_visibility_changed();
+    }
+    
+    private void insert(Sidebar.Entry entry, int position) {
+        entry.set_data<int>(POSITION_DATA, position);
+        graft(get_root(), entry);
+    }
+
+    private void on_flagged_visibility_changed() {
+        update_entry_visibility(flagged_entry, EntryPosition.FLAGGED);
+    }
+
+    private void on_last_imported_visibility_changed() {
+        update_entry_visibility(last_imported_entry, EntryPosition.LAST_IMPORTED);
+    }
+
+    private void on_import_queue_visibility_changed() {
+        update_entry_visibility(import_queue_entry, EntryPosition.IMPORT_QUEUE);
+    }
+
+    private void on_offline_visibility_changed() {
+        update_entry_visibility(offline_entry, EntryPosition.OFFLINE);
+    }
+
+    private void update_entry_visibility(Library.HideablePageEntry entry, int position) {
+        if (entry.visible) {
+            if (!has_entry(entry))
+                insert(entry, position);
+        } else if (has_entry(entry)) {
+            prune(entry);
+        }
+    }
+
+    private static int comparator(Sidebar.Entry a, Sidebar.Entry b) {
+        return a.get_data<int>(POSITION_DATA) - b.get_data<int>(POSITION_DATA);
+    }
+}
+
+public class Library.PhotosEntry : Sidebar.SimplePageEntry {
+    
+    public PhotosEntry() {
+    }
+    
+    public override string get_sidebar_name() {
+        return _("Photos");
+    }
+    
+    public override string? get_sidebar_icon() {
+        return Resources.ICON_PHOTOS;
+    }
+    
+    protected override Page create_page() {
+        return new Library.MainPage();
+    }
+}
+
+public abstract class Library.HideablePageEntry : Sidebar.SimplePageEntry {
+    // container branch should listen to this signal
+    public signal void visibility_changed(bool visible);
+
+    private bool show_entry = false;
+    public bool visible {
+        get { return show_entry; }
+        set {
+            if (value == show_entry)
+                return;
+
+            show_entry = value;
+            visibility_changed(value);
+        }
+    }
+
+    public HideablePageEntry() {
+    }
+}
+
+public class Library.MainPage : CollectionPage {
+    public const string NAME = _("Library");
+    
+    public MainPage(ProgressMonitor? monitor = null) {
+        base (NAME);
+        
+        foreach (MediaSourceCollection sources in MediaCollectionRegistry.get_instance().get_all())
+            get_view().monitor_source_collection(sources, new CollectionViewManager(this), null, null, monitor);
+    }
+    
+    protected override void get_config_photos_sort(out bool sort_order, out int sort_by) {
+        Config.Facade.get_instance().get_library_photos_sort(out sort_order, out sort_by);
+    }
+
+    protected override void set_config_photos_sort(bool sort_order, int sort_by) {
+        Config.Facade.get_instance().set_library_photos_sort(sort_order, sort_by);
+    }
+}
+