Add a controller for contact selection lists

briar-android/src/org/briarproject/android/sharing/ShareForumControllerImpl.java

@@ -0,0 +1,74 @@
+package org.briarproject.android.sharing;
+
+import org.briarproject.android.contactselection.ContactSelectorControllerImpl;
+import org.briarproject.android.contactselection.SelectableContactItem;
+import org.briarproject.android.controller.handler.ResultExceptionHandler;
+import org.briarproject.api.contact.Contact;
+import org.briarproject.api.contact.ContactId;
+import org.briarproject.api.contact.ContactManager;
+import org.briarproject.api.db.DatabaseExecutor;
+import org.briarproject.api.db.DbException;
+import org.briarproject.api.forum.ForumSharingManager;
+import org.briarproject.api.lifecycle.LifecycleManager;
+import org.briarproject.api.sync.GroupId;
+
+import java.util.Collection;
+import java.util.concurrent.Executor;
+
+import javax.inject.Inject;
+
+import static java.util.logging.Level.WARNING;
+
+public class ShareForumControllerImpl
+		extends ContactSelectorControllerImpl<SelectableContactItem>
+		implements ShareForumController {
+
+	private final ForumSharingManager forumSharingManager;
+
+	@Inject
+	public ShareForumControllerImpl(
+			@DatabaseExecutor Executor dbExecutor,
+			LifecycleManager lifecycleManager,
+			ContactManager contactManager,
+			ForumSharingManager forumSharingManager) {
+		super(dbExecutor, lifecycleManager, contactManager);
+		this.forumSharingManager = forumSharingManager;
+	}
+
+	@Override
+	protected boolean isSelected(Contact c, boolean wasSelected) {
+		return wasSelected;
+	}
+
+	@Override
+	protected boolean isDisabled(GroupId g, Contact c) throws DbException {
+		return !forumSharingManager.canBeShared(g, c);
+	}
+
+	@Override
+	protected SelectableContactItem getItem(Contact c, boolean selected,
+			boolean disabled) {
+		return new SelectableContactItem(c, selected, disabled);
+	}
+
+	@Override
+	public void share(final GroupId g, final Collection<ContactId> contacts,
+			final String msg,
+			final ResultExceptionHandler<Void, DbException> handler) {
+		runOnDbThread(new Runnable() {
+			@Override
+			public void run() {
+				try {
+					for (ContactId c : contacts) {
+						forumSharingManager.sendInvitation(g, c, msg);
+					}
+				} catch (DbException e) {
+					if (LOG.isLoggable(WARNING))
+						LOG.log(WARNING, e.toString(), e);
+					handler.onException(e);
+				}
+			}
+		});
+	}
+
+}