Show Blog Invitations

This refactors the forum invitation code,
so it can be used by both: forums and blogs.

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

@@ -0,0 +1,37 @@
+package org.briarproject.android.sharing;
+
+import android.content.Context;
+
+import org.briarproject.R;
+import org.briarproject.api.blogs.Blog;
+
+class BlogInvitationAdapter extends InvitationAdapter {
+
+	BlogInvitationAdapter(Context ctx, AvailableForumClickListener listener) {
+		super(ctx, listener);
+	}
+
+	@Override
+	public void onBindViewHolder(InvitationsViewHolder ui, int position) {
+		super.onBindViewHolder(ui, position);
+		InvitationItem item = getItem(position);
+		Blog blog = (Blog) item.getShareable();
+
+		ui.avatar.setAuthorAvatar(blog.getAuthor());
+
+		ui.name.setText(ctx.getString(R.string.blogs_personal_blog,
+				blog.getAuthor().getName()));
+
+		if (item.isSubscribed()) {
+			ui.subscribed.setText(ctx.getString(R.string.blogs_sharing_exists,
+					blog.getAuthor().getName()));
+		}
+	}
+
+	int compareInvitations(InvitationItem o1, InvitationItem o2) {
+		return String.CASE_INSENSITIVE_ORDER
+				.compare(((Blog) o1.getShareable()).getAuthor().getName(),
+						((Blog) o2.getShareable()).getAuthor().getName());
+	}
+
+}