implement dumb article downloader

modules/backend-rpc.php

@@ -516,6 +516,10 @@
 
 		if ($subop == "download") {
 			$stage = (int) $_REQUEST["stage"];
+			$amount = (int) $_REQUEST["amount"];
+			$unread_only = db_escape_string($_REQUEST["unread_only"]);
+
+			if (!$amount) $amount = 50;
 
 			print "<rpc-reply>";
 
@@ -537,6 +541,43 @@
 
 			}
 
+			if ($stage > 0) {
+
+				print "<articles>";
+
+				$limit = 50;
+				$skip = $limit*($stage-1);
+
+				if ($amount > 0) $amount -= $skip;
+
+				if ($amount > 0) {
+
+					$limit = min($limit, $amount);
+
+					if ($unread_only) {
+						$unread_qpart = "unread = true AND ";
+					}
+
+					$result = db_query($link,
+						"SELECT DISTINCT id,title,guid,link,
+								feed_id,content,updated,unread,marked FROM
+							ttrss_user_entries,ttrss_entries
+							WHERE $unread_qpart
+							ref_id = id AND owner_uid = ".$_SESSION["uid"]."
+							ORDER BY updated DESC LIMIT $limit OFFSET $skip");
+	
+					while ($line = db_fetch_assoc($result)) {
+						print "<article><![CDATA[";
+						print json_encode($line);
+						print "]]></article>";
+					}
+
+				}
+
+				print "</articles>";
+
+			}
+
 			print "</rpc-reply>";
 
 			return;

modules/popup-dialog.php

@@ -474,20 +474,22 @@
 			$amount = array(
 				50  => 50,
 				100 => 100,
-				0   => "All unread");
+				250 => 250);
 
 			print_select_hash("amount", 50, $amount);
 
 			print " " . __("newest articles for offline reading.");
 
+			print "<br/>";
+
+			print "<input checked='yes' type='checkbox' name='unread_only' id='unread_only'>";
+			print "<label for='unread_only'>".__('Only include unread articles')."</label>";
+
 			print "</div>";
 
 			print "</form>";
 
 			print "<div class=\"dlgButtons\">
-			<div id=\"d_progress_o\" style=\"display : none\">
-				<div id=\"d_progress_i\"></div>
-			</div>
 				<input class=\"button\"					
 					type=\"submit\" onclick=\"return initiate_offline_download()\" value=\"".__('Download')."\">
 				<input class=\"button\"