Added index listing to browse panel

sublime/ui/browse.py

@@ -3,8 +3,13 @@ import gi
 gi.require_version('Gtk', '3.0')
 from gi.repository import Gtk, GObject, Pango, GLib, Gio
 
+from sublime.state_manager import ApplicationState
+from sublime.cache_manager import CacheManager
+from sublime.ui import util
+from sublime.ui.common import IconButton
 
-class BrowsePanel(Gtk.Label):
+
+class BrowsePanel(Gtk.ScrolledWindow):
     """Defines the arist panel."""
 
     __gsignals__ = {
@@ -21,4 +26,151 @@ class BrowsePanel(Gtk.Label):
     }
 
     def __init__(self):
-        super().__init__(label='ohea')
+        super().__init__()
+
+        self.root_directory_listing = DirectoryListAndDrilldown(is_root=True)
+
+        self.add(self.root_directory_listing)
+
+    def update(self, state: ApplicationState, force=False):
+        self.root_directory_listing.update(state=state, force=force)
+
+
+class DirectoryListAndDrilldown(Gtk.Paned):
+    __gsignals__ = {
+        'song-clicked': (
+            GObject.SignalFlags.RUN_FIRST,
+            GObject.TYPE_NONE,
+            (int, object, object),
+        ),
+        'refresh-window': (
+            GObject.SignalFlags.RUN_FIRST,
+            GObject.TYPE_NONE,
+            (object, bool),
+        ),
+    }
+
+    def __init__(self, is_root=False):
+        Gtk.Paned.__init__(self, orientation=Gtk.Orientation.HORIZONTAL)
+
+        self.directory_listing = DirectoryList()
+        self.pack1(self.directory_listing, False, False)
+
+        self.listing_drilldown_panel = Gtk.Box()
+        self.pack2(self.listing_drilldown_panel, True, False)
+
+    def update(self, state: ApplicationState, force=False):
+        print('directory list and drilldown update')
+        if self.is_root:
+            self.directory_listing.update_root(state=state, force=force)
+        else:
+            self.directory_listing.update_not_root(state=state, force=force)
+
+
+class DirectoryList(Gtk.Box):
+    class SubelementModel(GObject.GObject):
+        id = GObject.Property(type=str)
+        name = GObject.Property(type=str)
+
+        def __init__(self, id, name):
+            GObject.GObject.__init__(self)
+            self.id = id
+            self.name = name
+
+    def __init__(self):
+        Gtk.Box.__init__(self, orientation=Gtk.Orientation.VERTICAL)
+
+        list_actions = Gtk.ActionBar()
+
+        refresh = IconButton('view-refresh-symbolic')
+        refresh.connect('clicked', lambda *a: self.update(force=True))
+        list_actions.pack_end(refresh)
+
+        self.add(list_actions)
+
+        self.loading_indicator = Gtk.ListBox()
+        spinner_row = Gtk.ListBoxRow()
+        spinner = Gtk.Spinner(
+            name='directory-list-spinner',
+            active=True,
+        )
+        spinner_row.add(spinner)
+        self.loading_indicator.add(spinner_row)
+        self.pack_start(self.loading_indicator, False, False, 0)
+
+        list_scroll_window = Gtk.ScrolledWindow(min_content_width=250)
+
+        def create_row(model: DirectoryList.SubelementModel):
+            return Gtk.Label(
+                label=f'<b>{util.esc(model.name)}</b>',
+                use_markup=True,
+                margin=8,
+                halign=Gtk.Align.START,
+                ellipsize=Pango.EllipsizeMode.END,
+                max_width_chars=30,
+            )
+
+        self.directory_list_store = Gio.ListStore()
+        self.list = Gtk.ListBox(name='directory-list')
+        self.list.bind_model(self.directory_list_store, create_row)
+        list_scroll_window.add(self.list)
+
+        self.pack_start(list_scroll_window, True, True, 0)
+
+    @util.async_callback(
+        lambda *a, **k: CacheManager.get_indexes(*a, **k),
+        before_download=lambda self: self.loading_indicator.show_all(),
+        on_failure=lambda self, e: self.loading_indicator.hide(),
+    )
+    def update_root(
+        self,
+        artists,
+        state: ApplicationState = None,
+        force=False,
+    ):
+        new_store = []
+        selected_idx = None
+        for i, artist in enumerate(artists):
+            # if state and state.selected_artist_id == artist.id:
+            #     selected_idx = i
+
+            new_store.append(
+                DirectoryList.SubelementModel(artist.id, artist.name))
+
+        util.diff_model_store(self.directory_list_store, new_store)
+
+        # Preserve selection
+        if selected_idx is not None:
+            row = self.list.get_row_at_index(selected_idx)
+            self.list.select_row(row)
+
+        self.loading_indicator.hide()
+
+    @util.async_callback(
+        lambda *a, **k: CacheManager.get_music_directory(*a, **k),
+        before_download=lambda self: self.loading_indicator.show_all(),
+        on_failure=lambda self, e: self.loading_indicator.hide(),
+    )
+    def update_not_root(
+        self,
+        artists,
+        state: ApplicationState = None,
+        force=False,
+    ):
+        new_store = []
+        selected_idx = None
+        for i, artist in enumerate(artists):
+            # if state and state.selected_artist_id == artist.id:
+            #     selected_idx = i
+
+            new_store.append(
+                DirectoryList.SubelementModel(artist.id, artist.name))
+
+        util.diff_model_store(self.directory_list_store, new_store)
+
+        # Preserve selection
+        if selected_idx is not None:
+            row = self.list.get_row_at_index(selected_idx)
+            self.list.select_row(row)
+
+        self.loading_indicator.hide()