New upstream version 0.28.2upstream/0.28.2

1 files changed, 114 insertions, 0 deletions

diff --git a/src/camera/CameraBranch.vala b/src/camera/CameraBranch.vala
new file mode 100644
index 0000000..052f093
--- /dev/null
+++ b/src/camera/CameraBranch.vala
@@ -0,0 +1,114 @@
+/* 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;
+    }
+}
+