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\"

tt-rss.css

@@ -1976,20 +1976,6 @@ div#l_progress_i {
 	height : 10px;
 }
 
-div#d_progress_o {
-	width : 100px;
-	border : 1px solid black;
-	background-color : white;
-	float : left;
-	margin-left : 10px;
-}
-
-div#d_progress_i {
-	width : 10px;
-	background-color : #88b0f0;
-	height : 10px;
-}
-
 #content-insert {
 	background-color : white;
 	overflow : auto;

tt-rss.js

@@ -1505,7 +1505,7 @@ function init_gears() {
 
 			db.execute("CREATE TABLE if not exists offline_feeds (id integer, title text)");
 
-			db.execute("CREATE TABLE if not exists offline_data (id integer, feed_id integer, title text, updated text, content text, tags text)");
+			db.execute("CREATE TABLE if not exists offline_data (id integer, feed_id integer, title text, link text, guid text, updated text, content text, tags text)");
 
 			var qmcDownload = document.getElementById("qmcDownload");
 			if (qmcDownload) Element.show(qmcDownload);
@@ -1552,6 +1552,28 @@ function offline_download_parse(stage, transport) {
 				}
 		
 				window.setTimeout("initiate_offline_download("+(stage+1)+")", 50);
+			} else {
+
+				var articles = transport.responseXML.getElementsByTagName("article");
+
+				var articles_found = 0;
+
+				for (var i = 0; i < articles.length; i++) {					
+					var a = eval("("+articles[i].firstChild.nodeValue+")");
+					articles_found++;
+					if (a) {
+						db.execute("DELETE FROM offline_data WHERE id = ?", [a.id]);
+						db.execute("INSERT INTO offline_data "+
+							"(id, feed_id, title, link, guid, updated, content) "+
+							"VALUES (?, ?, ?, ?, ?, ?, ?)", 
+							[a.id, a.feed_id, a.title, a.link, a.guid, a.updated, a.content]);
+
+					}
+				}
+
+				if (articles_found > 0) {
+					window.setTimeout("initiate_offline_download("+(stage+1)+")", 50);
+				}
 			}
 
 			notify_info("All done.");
@@ -1562,33 +1584,12 @@ function offline_download_parse(stage, transport) {
 	}
 }
 
-function download_set_progress(p) {
-	try {
-		var o = document.getElementById("d_progress_i");
-
-		if (!o) return;
-
-		Element.show(o);
-
-		new Effect.Scale(o, p, { 
-			scaleY : false,
-			scaleFrom : download_progress_last,
-			scaleMode: { originalWidth : 100 },
-			queue: { position: 'end', scope: 'LSP-Q', limit: 3 } }); 
-
-		download_progress_last = p;
-	} catch (e) {
-		exception_error("download_progress", e);
-	}
-}
-
 function initiate_offline_download(stage) {
 	try {
 
 		if (!stage) stage = 0;
 
-		notify_progress("Loading, please wait... S" + stage, true);
-		download_set_progress(20);
+		notify_progress("Loading, please wait... (" + stage +")", true);
 
 		var query = "backend.php?op=rpc&subop=download&stage=" + stage;