Show blog invitation requests and responses in private conversation

briar-android/src/org/briarproject/android/contact/ConversationShareableInvitationInItem.java

@@ -0,0 +1,43 @@
+package org.briarproject.android.contact;
+
+import org.briarproject.api.blogs.BlogInvitationRequest;
+import org.briarproject.api.forum.ForumInvitationRequest;
+import org.briarproject.api.sharing.InvitationRequest;
+
+// This class is not thread-safe
+class ConversationShareableInvitationInItem
+		extends ConversationShareableInvitationItem
+		implements ConversationItem.IncomingItem {
+
+	private final int type;
+	private boolean read;
+
+	ConversationShareableInvitationInItem(InvitationRequest ir) {
+		super(ir);
+
+		if (ir instanceof ForumInvitationRequest) {
+			this.type = FORUM_INVITATION_IN;
+		} else if (ir instanceof BlogInvitationRequest) {
+			this.type = BLOG_INVITATION_IN;
+		} else {
+			throw new IllegalArgumentException("Unknown Invitation Type.");
+		}
+
+		this.read = ir.isRead();
+	}
+
+	@Override
+	int getType() {
+		return type;
+	}
+
+	@Override
+	public boolean isRead() {
+		return read;
+	}
+
+	@Override
+	public void setRead(boolean read) {
+		this.read = read;
+	}
+}