add action to reset category order

backend.php

@@ -180,6 +180,31 @@
 						$_SESSION["uid"]);
 					return;
 				break;
+
+				case "catsortreset":
+					db_query($link, "UPDATE ttrss_feed_categories 
+							SET order_id = 0 WHERE owner_uid = " . $_SESSION["uid"]);
+					return;
+				break;
+
+				case "catsort":
+					$corder = db_escape_string($_GET["corder"]);
+
+					$cats = split(",", $corder);
+
+					for ($i = 0; $i < count($cats); $i++) {
+						$cat_id = $cats[$i];
+
+						if ($cat_id > 0) {
+							db_query($link, "UPDATE ttrss_feed_categories 
+								SET order_id = '$i' WHERE id = '$cat_id' AND
+								owner_uid = " . $_SESSION["uid"]);
+						}
+					}
+
+					return;
+				break;
+
 			}
 
 			outputFeedList($link, $tags);

feedlist.js

@@ -316,6 +316,34 @@ function toggleCollapseCat(cat) {
 	}
 }
 
+function feedlist_dragsorted(ctr) {
+	try {
+		var elem = document.getElementById("feedList");
+
+		var cats = elem.getElementsByTagName("LI");
+		var ordered_cats = new Array();
+
+		for (var i = 0; i < cats.length; i++) {
+			if (cats[i].id && cats[i].id.match("FCAT-")) {
+				ordered_cats.push(cats[i].id.replace("FCAT-", ""));
+			}
+		}
+
+		if (ordered_cats.length > 0) {
+
+			var query = "backend.php?op=feeds&subop=catsort&corder=" + 
+				param_escape(ordered_cats.toString());
+
+			debug(query);
+
+			new Ajax.Request(query);
+		}
+
+	} catch (e) {
+		exception_error("feedlist_init", e);
+	}
+}
+
 function feedlist_init() {
 	try {
 //		if (arguments.callee.done) return;
@@ -354,7 +382,7 @@ function feedlist_init() {
 
 		init_collapsable_feedlist(getInitParam("theme"));
 
-		Sortable.create('feedList');
+		Sortable.create('feedList', {onChange: feedlist_dragsorted});
 
 	} catch (e) {
 		exception_error("feedlist/init", e);

functions.php

@@ -4234,9 +4234,9 @@
 
 			if (get_pref($link, 'ENABLE_FEED_CATS')) {
 				if (get_pref($link, "FEEDS_SORT_BY_UNREAD")) {
-					$order_by_qpart = "category,unread DESC,title";
+					$order_by_qpart = "order_id,category,unread DESC,title";
 				} else {
-					$order_by_qpart = "category,title";
+					$order_by_qpart = "order_id,category,title";
 				}
 			} else {
 				if (get_pref($link, "FEEDS_SORT_BY_UNREAD")) {

localized_js.php

@@ -138,7 +138,7 @@ print T_js_decl("Rescoring feeds...");
 print T_js_decl("You can't rescore this kind of feed.");
 print T_js_decl("Rescore articles in %s?");
 print T_js_decl("Rescoring articles...");
-#print T_js_decl(
+print T_js_decl("Reset category order?");
 #print T_js_decl(
 #print T_js_decl(
 #print T_js_decl(

tt-rss.js

@@ -601,6 +601,21 @@ function quickMenuGo(opid) {
 			resize_headlines();
 		}
 
+		if (opid == "qmcResetCats") {
+
+			if (confirm(__("Reset category order?"))) {
+
+				var query = "backend.php?op=feeds&subop=catsortreset";
+
+				notify_progress("Loading, please wait...", true);
+
+				new Ajax.Request(query, {
+					onComplete: function(transport) { 
+						window.setTimeout('updateFeedList(false, false)', 50);
+					} });
+			}
+		}
+
 	} catch (e) {
 		exception_error("quickMenuGo", e);
 	}

tt-rss.php

@@ -157,6 +157,7 @@ window.onload = init;
 					<option style="color : #5050aa" disabled><?php echo __('Other actions:') ?></option>				
 					<option value="qmcAddFilter"><?php echo __('&nbsp;&nbsp;Create filter') ?></option>
 					<option value="qmcResetUI"><?php echo __('&nbsp;&nbsp;Reset UI layout') ?></option>
+					<option value="qmcResetCats"><?php echo __('&nbsp;&nbsp;Reset category order') ?></option>
 
 					<option value="qmcHKhelp"><?php echo __('&nbsp;&nbsp;Keyboard shortcuts') ?></option>
 			</select>