]> git.wh0rd.org - tt-rss.git/blobdiff - prefs.js
add sanity check & debug mode to prefs; misc code cleanups
[tt-rss.git] / prefs.js
index 8d15d5c22439f4efda902880f204ed50130169ba..eed755d5afd830d48a2fe8645bb8c22569738311 100644 (file)
--- a/prefs.js
+++ b/prefs.js
@@ -1,34 +1,16 @@
 var xmlhttp = false;
 
-var active_feed = false;
 var active_feed_cat = false;
-var active_filter = false;
 var active_label = false;
-var active_user = false;
 var active_tab = false;
 var feed_to_expand = false;
 
 var piggie_top = -400;
 var piggie_fwd = true;
 
-/*@cc_on @*/
-/*@if (@_jscript_version >= 5)
-// JScript gives us Conditional compilation, we can cope with old IE versions.
-// and security blocked creation of the objects.
-try {
-       xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
-} catch (e) {
-       try {
-               xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
-       } catch (E) {
-               xmlhttp = false;
-       }
-}
-@end @*/
+var xmlhttp = Ajax.getTransport();
 
-if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
-       xmlhttp = new XMLHttpRequest();
-}
+var init_params = new Array();
 
 function expand_feed_callback() {
        if (xmlhttp.readyState == 4) {
@@ -36,7 +18,7 @@ function expand_feed_callback() {
                        var container = document.getElementById("BRDET-" + feed_to_expand);     
                        container.innerHTML=xmlhttp.responseText;
                        container.style.display = "block";
-                       p_notify("");
+//                     p_notify("");
                } catch (e) {
                        exception_error("expand_feed_callback", e);
                }
@@ -50,19 +32,20 @@ function feedlist_callback() {
                        container.innerHTML=xmlhttp.responseText;
                        selectTab("feedConfig", true);
 
-                       if (active_feed) {
-                               var row = document.getElementById("FEEDR-" + active_feed);
+                       if (active_feed_cat) {
+                               var row = document.getElementById("FCATR-" + active_feed_cat);
                                if (row) {
                                        if (!row.className.match("Selected")) {
                                                row.className = row.className + "Selected";
                                        }               
                                }
-                               var checkbox = document.getElementById("FRCHK-" + active_feed);
+                               var checkbox = document.getElementById("FCCHK-" + active_feed_cat);
                                if (checkbox) {
                                        checkbox.checked = true;
                                }
                        }
-                       p_notify("");
+
+                       notify("");
                } catch (e) {
                        exception_error("feedlist_callback", e);
                }
@@ -72,23 +55,8 @@ function feedlist_callback() {
 function filterlist_callback() {
        var container = document.getElementById('prefContent');
        if (xmlhttp.readyState == 4) {
-
                container.innerHTML=xmlhttp.responseText;
-
-               if (active_filter) {
-                       var row = document.getElementById("FILRR-" + active_filter);
-                       if (row) {
-                               if (!row.className.match("Selected")) {
-                                       row.className = row.className + "Selected";
-                               }               
-                       }
-                       var checkbox = document.getElementById("FICHK-" + active_filter);
-                       
-                       if (checkbox) {
-                               checkbox.checked = true;
-                       }
-               }
-               p_notify("");
+               notify("");
        }
 }
 
@@ -110,7 +78,7 @@ function labellist_callback() {
                                checkbox.checked = true;
                        }
                }
-               p_notify("");
+               notify("");
        }
 }
 
@@ -118,7 +86,7 @@ function feed_browser_callback() {
        var container = document.getElementById('prefContent');
        if (xmlhttp.readyState == 4) {
                container.innerHTML=xmlhttp.responseText;
-               p_notify("");
+               notify("");
        }
 }
 
@@ -126,48 +94,17 @@ function userlist_callback() {
        var container = document.getElementById('prefContent');
        if (xmlhttp.readyState == 4) {
                container.innerHTML=xmlhttp.responseText;
-
-               if (active_user) {
-                       var row = document.getElementById("UMRR-" + active_user);
-                       if (row) {
-                               if (!row.className.match("Selected")) {
-                                       row.className = row.className + "Selected";
-                               }               
-                       }
-                       var checkbox = document.getElementById("UMCHK-" + active_user);
-                       
-                       if (checkbox) {
-                               checkbox.checked = true;
-                       }
-               } 
-
-               p_notify("");
-       }
-}
-
-function infobox_callback() {
-       if (xmlhttp.readyState == 4) {
-               var box = document.getElementById('infoBox');
-               var shadow = document.getElementById('infoBoxShadow');
-               if (box) {                      
-                       box.innerHTML=xmlhttp.responseText;                     
-                       if (shadow) {
-                               shadow.style.display = "block";
-                       } else {
-                               box.style.display = "block";                            
-                       }
-               }
+               notify("");
        }
 }
 
-
 function prefslist_callback() {
        var container = document.getElementById('prefContent');
        if (xmlhttp.readyState == 4) {
 
                container.innerHTML=xmlhttp.responseText;
-
-               p_notify("");
+               
+               notify("");
        }
 }
 
@@ -198,7 +135,7 @@ function updateFeedList(sort_key) {
 
 //     document.getElementById("prefContent").innerHTML = "Loading feeds, please wait...";
 
-       p_notify("Loading, please wait...");
+//     p_notify("Loading, please wait...");
 
        var feed_search = document.getElementById("feed_search");
        var search = "";
@@ -221,7 +158,7 @@ function updateUsersList() {
 
 //     document.getElementById("prefContent").innerHTML = "Loading feeds, please wait...";
 
-       p_notify("Loading, please wait...");
+//     p_notify("Loading, please wait...");
 
        xmlhttp.open("GET", "backend.php?op=pref-users", true);
        xmlhttp.onreadystatechange=userlist_callback;
@@ -239,7 +176,7 @@ function addLabel() {
        var sqlexp = document.getElementById("ladd_expr");
 
        if (sqlexp.value.length == 0) {
-               notify("Missing SQL expression.");
+               alert("Can't add label: missing SQL expression.");
        } else {
                notify("Adding label...");
 
@@ -267,7 +204,7 @@ function addFilter() {
        var action = document.getElementById("fadd_action");
 
        if (regexp.value.length == 0) {
-               notify("Missing filter expression.");
+               alert("Can't add filter: missing filter expression.");
        } else {
                notify("Adding filter...");
 
@@ -297,11 +234,13 @@ function addFeed() {
        var link = document.getElementById("fadd_link");
 
        if (link.value.length == 0) {
-               notify("Missing feed URL.");
+               alert("Error: No feed URL given.");
+       } else if (!isValidURL(link.value)) {
+               alert("Error: Invalid feed URL.");
        } else {
                notify("Adding feed...");
 
-               xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=add&link=" +
+               xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=add&feed_url=" +
                        param_escape(link.value), true);
                xmlhttp.onreadystatechange=feedlist_callback;
                xmlhttp.send(null);
@@ -322,7 +261,7 @@ function addFeedCat() {
        var cat = document.getElementById("fadd_cat");
 
        if (cat.value.length == 0) {
-               notify("Missing feed category.");
+               alert("Can't add category: no name specified.");
        } else {
                notify("Adding feed category...");
 
@@ -346,7 +285,7 @@ function addUser() {
        var sqlexp = document.getElementById("uadd_box");
 
        if (sqlexp.value.length == 0) {
-               notify("Missing user login.");
+               alert("Can't add user: no login specified.");
        } else {
                notify("Adding user...");
 
@@ -384,11 +323,12 @@ function editUser(id) {
                return
        }
 
-       active_user = id;
+       selectTableRowsByIdPrefix('prefUserList', 'UMRR-', 'UMCHK-', false);
+       selectTableRowById('UMRR-'+id, 'UMCHK-'+id, true);
 
        xmlhttp.open("GET", "backend.php?op=pref-users&subop=edit&id=" +
                param_escape(id), true);
-       xmlhttp.onreadystatechange=userlist_callback;
+       xmlhttp.onreadystatechange=infobox_callback;
        xmlhttp.send(null);
 
 }
@@ -400,13 +340,14 @@ function editFilter(id) {
                return
        }
 
-       active_filter = id;
+       document.getElementById("create_filter_btn").disabled = true;
 
-       xmlhttp.open("GET", "backend.php?op=pref-filters&subop=edit&id=" +
-               param_escape(id), true);
-       xmlhttp.onreadystatechange=filterlist_callback;
-       xmlhttp.send(null);
+       selectTableRowsByIdPrefix('prefFilterList', 'FILRR-', 'FICHK-', false);
+       selectTableRowById('FILRR-'+id, 'FICHK-'+id, true);
 
+       xmlhttp.open("GET", "backend.php?op=pref-filters&subop=edit&id=" + param_escape(id), true);
+       xmlhttp.onreadystatechange=infobox_callback;
+       xmlhttp.send(null);
 }
 
 function editFeed(feed) {
@@ -418,21 +359,12 @@ function editFeed(feed) {
                return
        }
 
-       active_feed = feed;
-
-/*     xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=edit&id=" +
-               param_escape(feed), true);
-       xmlhttp.onreadystatechange=feedlist_callback;
-       xmlhttp.send(null); */
-
+       // clean selection from all rows & select row being edited
        selectTableRowsByIdPrefix('prefFeedList', 'FEEDR-', 'FRCHK-', false);
-//     selectTableRowsByIdPrefix('prefFeedList', 'FEEDR-'+feed, 'FRCHK-'+feed, 
-//             true, false);
-
        selectTableRowById('FEEDR-'+feed, 'FRCHK-'+feed, true);
 
        xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=editfeed&id=" +
-               param_escape(active_feed), true);
+               param_escape(feed), true);
 
        xmlhttp.onreadystatechange=infobox_callback;
        xmlhttp.send(null);
@@ -475,36 +407,27 @@ function getSelectedFeedCats() {
        return getSelectedTableRowIds("prefFeedCatList", "FCATR");
 }
 
+function getSelectedFeedsFromBrowser() {
 
-function readSelectedFeeds(read) {
-
-       if (!xmlhttp_ready(xmlhttp)) {
-               printLockingError();
-               return
-       }
-
-       var sel_rows = getSelectedFeeds();
+       var list = document.getElementById("browseFeedList");
+       if (!list) list = document.getElementById("browseBigFeedList");
 
-       if (sel_rows.length > 0) {
+       var selected = new Array();
+       
+       for (i = 0; i < list.childNodes.length; i++) {
+               var child = list.childNodes[i];
+               if (child.id && child.id.match("FBROW-")) {
+                       var id = child.id.replace("FBROW-", "");
+                       
+                       var cb = document.getElementById("FBCHK-" + id);
 
-               if (!read) {
-                       op = "unread";
-               } else {
-                       op = "read";
+                       if (cb.checked) {
+                               selected.push(id);
+                       }
                }
-
-               notify("Marking selected feeds as " + op + "...");
-
-               xmlhttp.open("GET", "backend.php?op=pref-rpc&subop=" + op + "&ids="+
-                       param_escape(sel_rows.toString()), true);
-               xmlhttp.onreadystatechange=notify_callback;
-               xmlhttp.send(null);
-
-       } else {
-
-               notify("Please select some feeds first.");
-
        }
+
+       return selected;
 }
 
 function removeSelectedLabels() {
@@ -529,7 +452,7 @@ function removeSelectedLabels() {
                        xmlhttp.send(null);
                }
        } else {
-               notify("Please select some labels first.");
+               alert("No labels are selected.");
        }
 }
 
@@ -556,7 +479,7 @@ function removeSelectedUsers() {
                }
 
        } else {
-               notify("Please select some labels first.");
+               alert("No users are selected.");
        }
 }
 
@@ -582,7 +505,7 @@ function removeSelectedFilters() {
                        xmlhttp.send(null);
                }
        } else {
-               notify("Please select some filters first.");
+               alert("No filters are selected.");
        }
 }
 
@@ -598,11 +521,11 @@ function removeSelectedFeeds() {
 
        if (sel_rows.length > 0) {
 
-               var ok = confirm("Remove selected feeds?");
+               var ok = confirm("Unsubscribe from selected feeds?");
 
                if (ok) {
 
-                       notify("Removing selected feeds...");
+                       notify("Unsubscribing from selected feeds...");
        
                        xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=remove&ids="+
                                param_escape(sel_rows.toString()), true);
@@ -612,7 +535,7 @@ function removeSelectedFeeds() {
 
        } else {
 
-               notify("Please select some feeds first.");
+               alert("No feeds are selected.");
 
        }
 
@@ -642,7 +565,7 @@ function removeSelectedFeedCats() {
 
        } else {
 
-               notify("Please select some feeds first.");
+               alert("No categories are selected.");
 
        }
 
@@ -657,13 +580,7 @@ function feedEditCancel() {
 
        closeInfoBox();
 
-       active_feed = false;
-
-       notify("Operation cancelled.");
-
-/*     xmlhttp.open("GET", "backend.php?op=pref-feeds", true);
-       xmlhttp.onreadystatechange=feedlist_callback;
-       xmlhttp.send(null); */
+       selectPrefRows('feed', false); // cleanup feed selection
 
 }
 
@@ -676,7 +593,7 @@ function feedCatEditCancel() {
 
        active_feed_cat = false;
 
-       notify("Operation cancelled.");
+//     notify("Operation cancelled.");
 
        xmlhttp.open("GET", "backend.php?op=pref-feeds", true);
        xmlhttp.onreadystatechange=feedlist_callback;
@@ -687,69 +604,27 @@ function feedCatEditCancel() {
 function feedEditSave() {
 
        try {
-
-               var feed = active_feed;
        
                if (!xmlhttp_ready(xmlhttp)) {
                        printLockingError();
                        return
                }
-       
-               var link = document.getElementById("iedit_link").value;
-               var title = document.getElementById("iedit_title").value;
-               var upd_intl = document.getElementById("iedit_updintl").value;
-               var purge_intl = document.getElementById("iedit_purgintl").value;
-               var fcat = document.getElementById("iedit_fcat");
 
-               var is_pvt = document.getElementById("iedit_private");
-               var is_rtl = document.getElementById("iedit_rtl");
+               // FIXME: add parameter validation
 
-               if (is_pvt) {
-                       is_pvt = is_pvt.checked;
-               }
+               var query = Form.serialize("edit_feed_form");
 
-               if (is_rtl) {
-                       is_rtl = is_rtl.checked;
-               }
-       
-               var fcat_id = 0;
-       
-               if (fcat) {     
-                       fcat_id = fcat[fcat.selectedIndex].id;
-               }
-
-               var pfeed = document.getElementById("iedit_parent_feed");
-               var parent_feed_id = pfeed[pfeed.selectedIndex].id;
-       
-               if (link.length == 0) {
-                       notify("Feed link cannot be blank.");
-                       return;
-               }
-       
-               if (title.length == 0) {
-                       notify("Feed title cannot be blank.");
-                       return;
-               }
-       
-               var auth_login = document.getElementById("iedit_login").value;
-               var auth_pass = document.getElementById("iedit_pass").value;
-       
-               active_feed = false;
-       
                notify("Saving feed...");
 
-               var query = "op=pref-feeds&subop=editSave&id=" +
-                       feed + "&l=" + param_escape(link) + "&t=" + param_escape(title) +
-                       "&ui=" + param_escape(upd_intl) + "&pi=" + param_escape(purge_intl) +
-                       "&catid=" + param_escape(fcat_id) + "&login=" + param_escape(auth_login) +                      
-                       "&pfeed=" + param_escape(parent_feed_id) + "&pass=" + param_escape(auth_pass) +
-                       "&is_pvt=" + param_escape(is_pvt) + "&is_rtl=" + param_escape(is_rtl);
-
                xmlhttp.open("POST", "backend.php", true);
                xmlhttp.onreadystatechange=feedlist_callback;
                xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
-               xmlhttp.send(query); 
-       
+               xmlhttp.send(query);
+
+               closeInfoBox();
+
+               return false;
+
        } catch (e) {
                exception_error("feedEditSave", e);
        } 
@@ -764,11 +639,9 @@ function feedCatEditSave() {
 
        notify("Saving category...");
 
-       var cat_title = document.getElementById("iedit_title").value;
+       var query = Form.serialize("feed_cat_edit_form");
 
-       xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=saveCat&id=" +
-               param_escape(active_feed_cat) + "&title=" + param_escape(cat_title), 
-               true);
+       xmlhttp.open("GET", "backend.php?" + query, true);
        xmlhttp.onreadystatechange=feedlist_callback;
        xmlhttp.send(null);
 
@@ -779,11 +652,13 @@ function feedCatEditSave() {
 
 function labelTest() {
 
-       var sqlexp = document.getElementById("iedit_expr").value;
-       var descr = document.getElementById("iedit_descr").value;
+       var form = document.forms['label_edit_form'];
+
+       var sql_exp = form.sql_exp.value;
+       var description = form.description.value;
 
        xmlhttp.open("GET", "backend.php?op=pref-labels&subop=test&expr=" +
-               param_escape(sqlexp) + "&descr=" + param_escape(descr), true);
+               param_escape(sql_exp) + "&descr=" + param_escape(description), true);
 
        xmlhttp.onreadystatechange=infobox_callback;
        xmlhttp.send(null);
@@ -809,7 +684,9 @@ function labelEditCancel() {
 
        active_label = false;
 
-       notify("Operation cancelled.");
+//     notify("Operation cancelled.");
+
+       closeInfoBox();
 
        xmlhttp.open("GET", "backend.php?op=pref-labels", true);
        xmlhttp.onreadystatechange=labellist_callback;
@@ -824,14 +701,8 @@ function userEditCancel() {
                return
        }
 
-       active_user = false;
-
-       notify("Operation cancelled.");
-
-       xmlhttp.open("GET", "backend.php?op=pref-users", true);
-       xmlhttp.onreadystatechange=userlist_callback;
-       xmlhttp.send(null);
-
+       selectPrefRows('user', false); // cleanup feed selection
+       closeInfoBox();
 }
 
 function filterEditCancel() {
@@ -841,14 +712,10 @@ function filterEditCancel() {
                return
        }
 
-       active_filter = false;
-
-       notify("Operation cancelled.");
-
-       xmlhttp.open("GET", "backend.php?op=pref-filters", true);
-       xmlhttp.onreadystatechange=filterlist_callback;
-       xmlhttp.send(null);
-
+       document.getElementById("create_filter_btn").disabled = false;
+       
+       selectPrefRows('filter', false); // cleanup feed selection
+       closeInfoBox();
 }
 
 function labelEditSave() {
@@ -860,29 +727,28 @@ function labelEditSave() {
                return
        }
 
-       var sqlexp = document.getElementById("iedit_expr").value;
-       var descr = document.getElementById("iedit_descr").value;
-
-//     notify("Saving label " + sqlexp + ": " + descr);
+       var sql_exp = document.forms["label_edit_form"].sql_exp.value;
+       var description = document.forms["label_edit_form"].description.value;
 
-       if (sqlexp.length == 0) {
-               notify("SQL expression cannot be blank.");
+       if (sql_exp.length == 0) {
+               alert("SQL Expression cannot be blank.");
                return;
        }
 
-       if (descr.length == 0) {
-               notify("Caption cannot be blank.");
+       if (description.length == 0) {
+               alert("Caption field cannot be blank.");
                return;
        }
 
+       closeInfoBox();
+
        notify("Saving label...");
 
        active_label = false;
 
-       xmlhttp.open("GET", "backend.php?op=pref-labels&subop=editSave&id=" +
-               label + "&s=" + param_escape(sqlexp) + "&d=" + param_escape(descr),
-               true);
-               
+       query = Form.serialize("label_edit_form");
+
+       xmlhttp.open("GET", "backend.php?" + query, true);              
        xmlhttp.onreadystatechange=labellist_callback;
        xmlhttp.send(null);
 
@@ -890,83 +756,55 @@ function labelEditSave() {
 
 function userEditSave() {
 
-       var user = active_user;
-
        if (!xmlhttp_ready(xmlhttp)) {
                printLockingError();
                return
        }
 
-       var login = document.getElementById("iedit_ulogin").value;
-       var level = document.getElementById("iedit_ulevel");
-
-       level = level[level.selectedIndex].id;
-       
-       var email = document.getElementById("iedit_email").value;
+       var login = document.forms["user_edit_form"].login.value;
 
        if (login.length == 0) {
-               notify("Login cannot be blank.");
-               return;
-       }
-
-       if (level.length == 0) {
-               notify("User level cannot be blank.");
+               alert("Login field cannot be blank.");
                return;
        }
-
-       active_user = false;
-
+       
        notify("Saving user...");
 
-       xmlhttp.open("GET", "backend.php?op=pref-users&subop=editSave&id=" +
-               user + "&l=" + param_escape(login) + "&al=" + param_escape(level) +
-               "&e=" + param_escape(email), true);
-               
+       closeInfoBox();
+
+       var query = Form.serialize("user_edit_form");
+       
+       xmlhttp.open("GET", "backend.php?" + query, true);                      
        xmlhttp.onreadystatechange=userlist_callback;
        xmlhttp.send(null);
-
 }
 
 
 function filterEditSave() {
 
-       var filter = active_filter;
-
        if (!xmlhttp_ready(xmlhttp)) {
                printLockingError();
                return
        }
 
-       var regexp = document.getElementById("iedit_regexp").value;
-       var descr = document.getElementById("iedit_descr").value;
-       var match = document.getElementById("iedit_match");
-
-       var v_match = match[match.selectedIndex].text;
-
-       var feed = document.getElementById("iedit_feed");
-       var feed_id = feed[feed.selectedIndex].id;
+       var reg_exp = document.forms["filter_edit_form"].reg_exp.value;
 
-       var action = document.getElementById("iedit_filter_action");
-       var action_id = action[action.selectedIndex].id;
-
-//     notify("Saving filter " + filter + ": " + regexp + ", " + descr + ", " + match);
-
-       if (regexp.length == 0) {
-               notify("Filter expression cannot be blank.");
+       if (reg_exp.length == 0) {
+               alert("Filter expression field cannot be blank.");
                return;
        }
 
-       active_filter = false;
+       notify("Saving filter...");
 
-       xmlhttp.open("GET", "backend.php?op=pref-filters&subop=editSave&id=" +
-               filter + "&r=" + param_escape(regexp) + "&d=" + param_escape(descr) +
-               "&m=" + param_escape(v_match) + "&fid=" + param_escape(feed_id) + 
-               "&aid=" + param_escape(action_id), true);
+       var query = Form.serialize("filter_edit_form");
 
-       notify("Saving filter...");
+       closeInfoBox();
+
+       document.getElementById("create_filter_btn").disabled = false;
 
+       xmlhttp.open("GET", "backend.php?" + query, true);
        xmlhttp.onreadystatechange=filterlist_callback;
-       xmlhttp.send(null); 
+       xmlhttp.send(null);
 
 }
 
@@ -974,12 +812,12 @@ function editSelectedLabel() {
        var rows = getSelectedLabels();
 
        if (rows.length == 0) {
-               notify("No labels are selected.");
+               alert("No labels are selected.");
                return;
        }
 
        if (rows.length > 1) {
-               notify("Please select one label.");
+               alert("Please select only one label.");
                return;
        }
 
@@ -993,12 +831,12 @@ function editSelectedUser() {
        var rows = getSelectedUsers();
 
        if (rows.length == 0) {
-               notify("No users are selected.");
+               alert("No users are selected.");
                return;
        }
 
        if (rows.length > 1) {
-               notify("Please select one user.");
+               alert("Please select only one user.");
                return;
        }
 
@@ -1011,12 +849,12 @@ function resetSelectedUserPass() {
        var rows = getSelectedUsers();
 
        if (rows.length == 0) {
-               notify("No users are selected.");
+               alert("No users are selected.");
                return;
        }
 
        if (rows.length > 1) {
-               notify("Please select one user.");
+               alert("Please select only one user.");
                return;
        }
 
@@ -1044,12 +882,12 @@ function selectedUserDetails() {
        var rows = getSelectedUsers();
 
        if (rows.length == 0) {
-               notify("No users are selected.");
+               alert("No users are selected.");
                return;
        }
 
        if (rows.length > 1) {
-               notify("Please select one user.");
+               alert("Please select only one user.");
                return;
        }
 
@@ -1073,14 +911,14 @@ function selectedFeedDetails() {
        var rows = getSelectedFeeds();
 
        if (rows.length == 0) {
-               notify("No feeds are selected.");
+               alert("No feeds are selected.");
                return;
        }
 
-//     if (rows.length > 1) {
-//             notify("Please select one feed.");
-//             return;
-//     }
+       if (rows.length > 1) {
+               notify("Please select only one feed.");
+               return;
+       }
 
 //     var id = rows[0];
 
@@ -1097,12 +935,12 @@ function editSelectedFilter() {
        var rows = getSelectedFilters();
 
        if (rows.length == 0) {
-               notify("No filters are selected.");
+               alert("No filters are selected.");
                return;
        }
 
        if (rows.length > 1) {
-               notify("Please select one filter.");
+               alert("Please select only one filter.");
                return;
        }
 
@@ -1136,12 +974,12 @@ function editSelectedFeedCat() {
        var rows = getSelectedFeedCats();
 
        if (rows.length == 0) {
-               notify("No categories are selected.");
+               alert("No categories are selected.");
                return;
        }
 
        if (rows.length > 1) {
-               notify("Please select one category.");
+               alert("Please select only one category.");
                return;
        }
 
@@ -1202,7 +1040,7 @@ function localPiggieFunction(enable) {
                var piggie = document.getElementById("piggie");
                piggie.style.display = "block";
 
-               if (navigator.userAgent.match("Firefox") && Math.random(1) > 0.5) {     
+               if (navigator.userAgent.match("Gecko") && Math.random(1) > 0.5) {       
                        piggie2_callback();
                } else {
                        piggie_callback();
@@ -1215,7 +1053,7 @@ function validateOpmlImport() {
        var opml_file = document.getElementById("opml_file");
 
        if (opml_file.value.length == 0) {
-               notify("Please select OPML file to upload.");
+               alert("No OPML file to upload.");
                return false;
        } else {
                return true;
@@ -1231,7 +1069,7 @@ function updateFilterList() {
 
 //     document.getElementById("prefContent").innerHTML = "Loading filters, please wait...";
 
-       p_notify("Loading, please wait...");
+//     p_notify("Loading, please wait...");
 
        xmlhttp.open("GET", "backend.php?op=pref-filters", true);
        xmlhttp.onreadystatechange=filterlist_callback;
@@ -1246,7 +1084,7 @@ function updateLabelList() {
                return
        }
 
-       p_notify("Loading, please wait...");
+//     p_notify("Loading, please wait...");
 
 //     document.getElementById("prefContent").innerHTML = "Loading labels, please wait...";
 
@@ -1262,7 +1100,7 @@ function updatePrefsList() {
                return
        }
 
-       p_notify("Loading, please wait...");
+//     p_notify("Loading, please wait...");
 
        xmlhttp.open("GET", "backend.php?op=pref-prefs", true);
        xmlhttp.onreadystatechange=prefslist_callback;
@@ -1281,6 +1119,15 @@ function selectTab(id, noupdate) {
 
        if (!noupdate) {
 
+               notify("Loading, please wait...", true);
+
+               // close active infobox if needed
+               closeInfoBox();
+
+               // clean up all current selections, just in case
+               active_feed_cat = false;
+               active_label = false;
+
                if (id == "feedConfig") {
                        updateFeedList();
                } else if (id == "filterConfig") {
@@ -1312,9 +1159,69 @@ function selectTab(id, noupdate) {
                }
        }
 
+       if (active_tab != id) {
+               storeInitParam("prefs_active_tab", id);
+       }
+
        active_tab = id;
+}
+
+function backend_sanity_check_callback() {
+
+       if (xmlhttp.readyState == 4) {
+
+               try {
+               
+                       if (!xmlhttp.responseXML) {
+                               fatalError(3, "[D001, Received reply is not XML]: " + xmlhttp.responseText);
+                               return;
+                       }
+       
+                       var reply = xmlhttp.responseXML.firstChild.firstChild;
+       
+                       if (!reply) {
+                               fatalError(3, "[D002, Invalid RPC reply]: " + xmlhttp.responseText);
+                               return;
+                       }
+       
+                       var error_code = reply.getAttribute("error-code");
+               
+                       if (error_code && error_code != 0) {
+                               return fatalError(error_code, reply.getAttribute("error-msg"));
+                       }
+       
+                       debug("sanity check ok");
+
+                       var params = reply.nextSibling;
+
+                       if (params) {
+                               debug('reading init-params...');
+                               var param = params.firstChild;
+
+                               while (param) {
+                                       var k = param.getAttribute("key");
+                                       var v = param.getAttribute("value");
+                                       debug(k + " => " + v);
+                                       init_params[k] = v;                                     
+                                       param = param.nextSibling;
+                               }
+                       }
+
+                       init_second_stage();
 
-       setCookie('ttrss_pref_acttab', active_tab);
+               } catch (e) {
+                       exception_error("backend_sanity_check_callback", e);
+               }
+       } 
+}
+
+function init_second_stage() {
+
+       active_tab = getInitParam("prefs_active_tab");
+       if (!active_tab) active_tab = "genConfig";
+       selectTab(active_tab);
+       
+       notify("");
 
 }
 
@@ -1325,6 +1232,11 @@ function init() {
                if (arguments.callee.done) return;
                arguments.callee.done = true;           
 
+               if (getURLParam('debug')) {
+                       document.getElementById('debug_output').style.display = 'block';
+                       debug('debug mode activated');
+               }
+
                // IE kludge
                if (!xmlhttp) {
                        document.getElementById("prefContent").innerHTML = 
@@ -1333,28 +1245,15 @@ function init() {
                        return;
                }
 
-               active_tab = getCookie("ttrss_pref_acttab");
-               if (!active_tab) active_tab = "genConfig";
-               selectTab(active_tab);
-       
-               document.onkeydown = hotkey_handler;
-               notify("");
+               xmlhttp.open("GET", "backend.php?op=rpc&subop=sanityCheck", true);
+               xmlhttp.onreadystatechange=backend_sanity_check_callback;
+               xmlhttp.send(null);
+
        } catch (e) {
                exception_error("init", e);
        }
 }
 
-function closeInfoBox() {
-       var box = document.getElementById('infoBox');
-       var shadow = document.getElementById('infoBoxShadow');
-
-       if (shadow) {
-               shadow.style.display = "none";
-       } else if (box) {
-               box.style.display = "none";
-       }
-}
-
 function categorizeSelectedFeeds() {
 
        if (!xmlhttp_ready(xmlhttp)) {
@@ -1365,7 +1264,7 @@ function categorizeSelectedFeeds() {
        var sel_rows = getSelectedFeeds();
 
        var cat_sel = document.getElementById("sfeed_set_fcat");
-       var cat_id = cat_sel[cat_sel.selectedIndex].id;
+       var cat_id = cat_sel[cat_sel.selectedIndex].value;
 
        if (sel_rows.length > 0) {
 
@@ -1378,7 +1277,7 @@ function categorizeSelectedFeeds() {
 
        } else {
 
-               notify("Please select some feeds first.");
+               alert("No feeds are selected.");
 
        }
 
@@ -1388,7 +1287,7 @@ function validatePrefsReset() {
        return confirm("Reset to defaults?");
 }
 
-function browseFeeds() {
+function browseFeeds(limit) {
 
        xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=browse", true);
        xmlhttp.onreadystatechange=infobox_callback;
@@ -1398,24 +1297,8 @@ function browseFeeds() {
 
 function feedBrowserSubscribe() {
        try {
-               var list = document.getElementById("browseFeedList");
-
-               if (!list) list = document.getElementById("browseBigFeedList");
 
-               var selected = new Array();
-
-               for (i = 0; i < list.childNodes.length; i++) {
-                       var child = list.childNodes[i];
-                       if (child.id && child.id.match("FBROW-")) {
-                               var id = child.id.replace("FBROW-", "");
-                               
-                               var cb = document.getElementById("FBCHK-" + id);
-
-                               if (cb.checked) {
-                                       selected.push(id);
-                               }
-                       }
-               }
+               var selected = getSelectedFeedsFromBrowser();
 
                if (selected.length > 0) {
                        closeInfoBox();
@@ -1432,19 +1315,27 @@ function feedBrowserSubscribe() {
        }
 }
 
-function updateBigFeedBrowser() {
+function updateBigFeedBrowser(limit) {
 
        if (!xmlhttp_ready(xmlhttp)) {
                printLockingError();
                return
        }
 
-       p_notify("Loading, please wait...");
+//     p_notify("Loading, please wait...");
+
+       var query = "backend.php?op=pref-feed-browser";
 
-       xmlhttp.open("GET", "backend.php?op=pref-feed-browser", true);
+       var limit_sel = document.getElementById("feedBrowserLimit");
+
+       if (limit_sel) {
+               var limit = limit_sel[limit_sel.selectedIndex].value;
+               query = query + "&limit=" + param_escape(limit);
+       }
+
+       xmlhttp.open("GET", query, true);
        xmlhttp.onreadystatechange=feed_browser_callback;
        xmlhttp.send(null);
-
 }
 
 function browserToggleExpand(id) {
@@ -1454,6 +1345,11 @@ function browserToggleExpand(id) {
                        d.style.display = "none";
                } */
 
+               if (!xmlhttp_ready(xmlhttp)) {
+                       printLockingError();
+                       return
+               }
+
                var d = document.getElementById("BRDET-" + id);
 
                if (d.style.display == "block") {               
@@ -1463,6 +1359,9 @@ function browserToggleExpand(id) {
        
                        feed_to_expand = id;
 
+                       d.style.display = "block";
+                       d.innerHTML = "Loading, please wait...";
+
                        xmlhttp.open("GET", "backend.php?op=pref-feed-browser&subop=details&id="
                                + param_escape(id), true);
                        xmlhttp.onreadystatechange=expand_feed_callback;
@@ -1473,3 +1372,96 @@ function browserToggleExpand(id) {
                exception_error("browserExpand", e);
        }
 }
+
+function validateNewPassword(form) {
+       if (form.OLD_PASSWORD.value == "") {
+               alert("Old password cannot be blank");
+               return false;
+       }
+       if (form.NEW_PASSWORD.value == "") {
+               alert("New password cannot be blank");
+               return false;
+       }
+       return true;
+}
+
+function selectPrefRows(kind, select) {
+
+       if (kind) {
+               var opbarid = false;    
+               var nchk = false;
+               var nrow = false;
+               var lname = false;
+
+               if (kind == "feed") {
+                       opbarid = "feedOpToolbar";
+                       nrow = "FEEDR-";
+                       nchk = "FRCHK-";                        
+                       lname = "prefFeedList";
+               } else if (kind == "fcat") {
+                       opbarid = "catOpToolbar";
+                       nrow = "FCATR-";
+                       nchk = "FCHK-";
+                       lname = "prefFeedCatList";
+               } else if (kind == "filter") {
+                       opbarid = "filterOpToolbar";
+                       nrow = "FILRR-";
+                       nchk = "FICHK-";
+                       lname = "prefFilterList";
+               } else if (kind == "label") {
+                       opbarid = "labelOpToolbar";
+                       nrow = "LILRR-";
+                       nchk = "LCHK-";
+                       lname = "prefLabelList";
+               } else if (kind == "user") {
+                       opbarid = "userOpToolbar";
+                       nrow = "UMRR-";
+                       nchk = "UMCHK-";
+                       lname = "prefUserList";
+               }
+
+               if (opbarid) {
+                       selectTableRowsByIdPrefix(lname, nrow, nchk, select);
+                       disableContainerChildren(opbarid, !select);
+               }
+
+       } 
+}
+
+
+function toggleSelectPrefRow(sender, kind) {
+
+       toggleSelectRow(sender);
+
+       if (kind) {
+               var opbarid = false;    
+               var nsel = -1;
+               
+               if (kind == "feed") {
+                       opbarid = "feedOpToolbar";
+                       nsel = getSelectedFeeds();
+               } else if (kind == "fcat") {
+                       opbarid = "catOpToolbar";
+                       nsel = getSelectedFeedCats();
+               } else if (kind == "filter") {
+                       opbarid = "filterOpToolbar";
+                       nsel = getSelectedFilters();
+               } else if (kind == "label") {
+                       opbarid = "labelOpToolbar";
+                       nsel = getSelectedLabels();
+               } else if (kind == "user") {
+                       opbarid = "userOpToolbar";
+                       nsel = getSelectedUsers();
+               }
+
+               if (opbarid && nsel != -1) {
+                       disableContainerChildren(opbarid, nsel == false);
+               }
+
+       } 
+}
+
+function toggleSelectFBListRow(sender) {
+       toggleSelectListRow(sender);
+       disableContainerChildren("fbrOpToolbar", getSelectedFeedsFromBrowser() == 0);
+}