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/* 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 Faces.Branch : Sidebar.Branch {
private Gee.HashMap<Face, Faces.SidebarEntry> entry_map = new Gee.HashMap<Face, Faces.SidebarEntry>();
public Branch() {
base (new Faces.Grouping(),
Sidebar.Branch.Options.HIDE_IF_EMPTY
| Sidebar.Branch.Options.AUTO_OPEN_ON_NEW_CHILD
| Sidebar.Branch.Options.STARTUP_EXPAND_TO_FIRST_CHILD,
comparator);
// seed the branch with existing faces
on_faces_added_removed(Face.global.get_all(), null);
// monitor collection for future events
Face.global.contents_altered.connect(on_faces_added_removed);
Face.global.items_altered.connect(on_faces_altered);
}
~Branch() {
Face.global.contents_altered.disconnect(on_faces_added_removed);
Face.global.items_altered.disconnect(on_faces_altered);
}
public Faces.SidebarEntry? get_entry_for_face(Face face) {
return entry_map.get(face);
}
private static int comparator(Sidebar.Entry a, Sidebar.Entry b) {
if (a == b)
return 0;
return Face.compare_names(((Faces.SidebarEntry) a).for_face(),
((Faces.SidebarEntry) b).for_face());
}
private void on_faces_added_removed(Gee.Iterable<DataObject>? added, Gee.Iterable<DataObject>? removed) {
if (added != null) {
foreach (DataObject object in added) {
Face face = (Face) object;
Faces.SidebarEntry entry = new Faces.SidebarEntry(face);
entry_map.set(face, entry);
graft(get_root(), entry);
}
}
if (removed != null) {
foreach (DataObject object in removed) {
Face face = (Face) object;
Faces.SidebarEntry? entry = entry_map.get(face);
assert(entry != null);
bool is_removed = entry_map.unset(face);
assert(is_removed);
prune(entry);
}
}
}
private void on_faces_altered(Gee.Map<DataObject, Alteration> altered) {
foreach (DataObject object in altered.keys) {
if (!altered.get(object).has_detail("metadata", "name"))
continue;
Face face = (Face) object;
Faces.SidebarEntry? entry = entry_map.get(face);
assert(entry != null);
entry.sidebar_name_changed(face.get_name());
entry.sidebar_tooltip_changed(face.get_name());
reorder(entry);
}
}
}
public class Faces.Grouping : Sidebar.Header {
public Grouping() {
base (_("Faces"));
}
}
public class Faces.SidebarEntry : Sidebar.SimplePageEntry, Sidebar.RenameableEntry,
Sidebar.DestroyableEntry {
private static string single_face_icon = Resources.ICON_ONE_FACE;
private Face face;
public SidebarEntry(Face face) {
this.face = face;
}
internal static void init() {
}
internal static void terminate() {
}
public Face for_face() {
return face;
}
public bool is_user_renameable() {
return true;
}
public override string get_sidebar_name() {
return face.get_name();
}
public override string? get_sidebar_icon() {
return single_face_icon;
}
protected override Page create_page() {
return new FacePage(face);
}
public void rename(string new_name) {
string? prepped = Face.prep_face_name(new_name);
if (prepped == null)
return;
if (!Face.global.exists(prepped))
AppWindow.get_command_manager().execute(new RenameFaceCommand(face, prepped));
else if (prepped != face.get_name())
AppWindow.error_message(Resources.rename_face_exists_message(prepped));
}
public void destroy_source() {
if (Dialogs.confirm_delete_face(face))
AppWindow.get_command_manager().execute(new DeleteFaceCommand(face));
}
}
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