allow adding cats from feed editor

functions.js

@@ -2169,3 +2169,50 @@ function has_local_storage() {
 		return false;
 	}
 }
+
+function catSelectOnChange(elem) {
+	try {
+		var value = elem[elem.selectedIndex].value;
+		var def = elem.getAttribute('default');
+
+		if (value == "ADD_CAT") {
+
+			if (def)
+				dropboxSelect(elem, def);
+			else
+				elem.selectedIndex = 0;
+
+			quickAddCat(elem);
+		}
+
+	} catch (e) {
+		exception_error("catSelectOnChange", e);
+	}
+}
+
+function quickAddCat(select) {
+	try {
+		var cat = prompt(__("Please enter category title:"));
+
+		if (cat) {
+
+			var query = "?op=rpc&subop=quickAddCat&cat=" + param_escape(cat);
+
+			new Ajax.Request("backend.php", {
+				parameters: query,
+				onComplete: function (transport) {
+					var response = transport.responseXML;
+
+					var payload = response.getElementsByTagName("payload")[0];
+
+					if (payload)
+						select.innerHTML = payload.firstChild.nodeValue;
+
+			} });
+
+		}
+
+	} catch (e) {
+		exception_error("quickAddCat", e);
+	}
+}

functions.php

@@ -3018,7 +3018,7 @@
 	function print_feed_cat_select($link, $id, $default_id = "", 
 		$attributes = "", $include_all_cats = true) {
 		
-		print "<select id=\"$id\" name=\"$id\" $attributes>";
+		print "<select id=\"$id\" name=\"$id\" default=\"$default_id\" onchange=\"catSelectOnChange(this)\" $attributes>";
 
 		if ($include_all_cats) {
 			print "<option value=\"0\">".__('Uncategorized')."</option>";
@@ -3041,6 +3041,8 @@
 				$line["id"], htmlspecialchars($line["title"]));
 		}
 
+		print "<option value=\"ADD_CAT\">" .__("Add category...") . "</option>";
+
 		print "</select>";
 	}
 	
@@ -6577,6 +6579,27 @@
 		}
 	}
 
+	function add_feed_category($link, $feed_cat) {
+		db_query($link, "BEGIN");
+
+		$result = db_query($link,
+			"SELECT id FROM ttrss_feed_categories
+			WHERE title = '$feed_cat' AND owner_uid = ".$_SESSION["uid"]);
+
+		if (db_num_rows($result) == 0) {
+			
+			$result = db_query($link,
+				"INSERT INTO ttrss_feed_categories (owner_uid,title) 
+				VALUES ('".$_SESSION["uid"]."', '$feed_cat')");
+
+			db_query($link, "COMMIT");
+
+			return true;
+		}
+
+		return false;
+	}			
+
 	function remove_feed_category($link, $id, $owner_uid) {
 
 		db_query($link, "DELETE FROM ttrss_feed_categories

modules/backend-rpc.php

@@ -1094,6 +1094,31 @@
 			return;
 		}
 
+		if ($subop == "quickAddCat") {
+			print "<rpc-reply>";	
+
+			$cat = db_escape_string($_REQUEST["cat"]);
+
+			add_feed_category($link, $cat);
+
+			$result = db_query($link, "SELECT id FROM ttrss_feed_categories WHERE
+				title = '$cat' AND owner_uid = " . $_SESSION["uid"]);
+
+			if (db_num_rows($result) == 1) {
+				$id = db_fetch_result($result, 0, "id");
+			} else {
+				$id = 0;
+			}
+
+			print "<payload><![CDATA[";
+			print_feed_cat_select($link, "cat_id", $id);
+			print "]]></payload>";
+
+			print "</rpc-reply>";
+
+			return;
+		}
+
 		print "<rpc-reply><error>Unknown method: $subop</error></rpc-reply>";
 	}
 ?>

modules/pref-feeds.php

@@ -1031,24 +1031,10 @@
 
 			if ($action == "add") {
 
-	
 				$feed_cat = db_escape_string(trim($_REQUEST["cat"]));
 
-				$result = db_query($link,
-					"SELECT id FROM ttrss_feed_categories
-					WHERE title = '$feed_cat' AND owner_uid = ".$_SESSION["uid"]);
-
-				if (db_num_rows($result) == 0) {
-					
-					$result = db_query($link,
-						"INSERT INTO ttrss_feed_categories (owner_uid,title) 
-						VALUES ('".$_SESSION["uid"]."', '$feed_cat')");
-
-				} else {
-
-					print_warning(T_sprintf("Category <b>$%s</b> already exists in the database.", 
-						$feed_cat));
-				}
+				if (!add_feed_category($link, $feed_cat))
+					print_warning(T_sprintf("Category <b>$%s</b> already exists in the database.", $feed_cat));
 
 			}