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authorJörg Frings-Fürst <debian@jff-webhosting.net>2018-05-01 14:34:32 +0200
committerJörg Frings-Fürst <debian@jff-webhosting.net>2018-05-01 14:34:32 +0200
commit49120f48474fc8fdc2448c75d961bc238213cfac (patch)
tree05bcdb95d65a807cf0f1ffffd066c09074b5cf56 /src/camera/CameraBranch.vala
parent2492891f112caac6076ce49721d9d5d78a152c3a (diff)
New upstream version 0.28.2upstream/0.28.2
Diffstat (limited to 'src/camera/CameraBranch.vala')
-rw-r--r--src/camera/CameraBranch.vala114
1 files changed, 114 insertions, 0 deletions
diff --git a/src/camera/CameraBranch.vala b/src/camera/CameraBranch.vala
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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.gcamera, uri, get_sidebar_name(), get_sidebar_icon());
+ }
+
+ public string get_uri() {
+ return uri;
+ }
+}
+