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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 Camera.Branch : Sidebar.Branch {
internal static string? cameras_icon = Resources.ICON_CAMERAS;
private Gee.HashMap<DiscoveredCamera, Camera.SidebarEntry> camera_map = new Gee.HashMap<
DiscoveredCamera, Camera.SidebarEntry>();
public Branch() {
base (new Camera.Header(),
Sidebar.Branch.Options.HIDE_IF_EMPTY | Sidebar.Branch.Options.AUTO_OPEN_ON_NEW_CHILD,
camera_comparator);
foreach (DiscoveredCamera camera in CameraTable.get_instance().get_cameras())
add_camera(camera);
CameraTable.get_instance().camera_added.connect(on_camera_added);
CameraTable.get_instance().camera_removed.connect(on_camera_removed);
}
internal static void init() {
}
internal static void terminate() {
}
private static int camera_comparator(Sidebar.Entry a, Sidebar.Entry b) {
if (a == b)
return 0;
// Compare based on name.
int ret = a.get_sidebar_name().collate(b.get_sidebar_name());
if (ret == 0) {
// Cameras had same name! Fallback to URI comparison.
Camera.SidebarEntry? cam_a = a as Camera.SidebarEntry;
Camera.SidebarEntry? cam_b = b as Camera.SidebarEntry;
assert (cam_a != null && cam_b != null);
ret = cam_a.get_uri().collate(cam_b.get_uri());
}
return ret;
}
public Camera.SidebarEntry? get_entry_for_camera(DiscoveredCamera camera) {
return camera_map.get(camera);
}
private void on_camera_added(DiscoveredCamera camera) {
add_camera(camera);
}
private void on_camera_removed(DiscoveredCamera camera) {
remove_camera(camera);
}
private void add_camera(DiscoveredCamera camera) {
assert(!camera_map.has_key(camera));
Camera.SidebarEntry entry = new Camera.SidebarEntry(camera);
camera_map.set(camera, entry);
// want to show before adding page so the grouping is available to graft onto
graft(get_root(), entry);
}
private void remove_camera(DiscoveredCamera camera) {
assert(camera_map.has_key(camera));
Camera.SidebarEntry? entry = camera_map.get(camera);
assert(entry != null);
bool removed = camera_map.unset(camera);
assert(removed);
prune(entry);
}
}
public class Camera.Header : Sidebar.Header {
public Header() {
base (_("Cameras"), _("List of all discovered camera devices"));
}
}
public class Camera.SidebarEntry : Sidebar.SimplePageEntry {
private DiscoveredCamera camera;
private string uri;
public SidebarEntry(DiscoveredCamera camera) {
this.camera = camera;
this.uri = camera.uri;
}
public override string get_sidebar_name() {
return camera.display_name ?? _("Camera");
}
public override string? get_sidebar_icon() {
return camera.icon ?? Camera.Branch.cameras_icon;
}
protected override Page create_page() {
return new ImportPage(camera);
}
public string get_uri() {
return uri;
}
}
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