X-Git-Url: https://git.wh0rd.org/?a=blobdiff_plain;f=js%2Fprefs.js;h=965e12fa6ee42fb35a5b2be79e2f0793bba7a823;hb=da1a3c2cc5621bccdb844cfbd03e377ada079fa9;hp=26501bec90ae61ae590f91f116c4cdac1eabf62d;hpb=d880b5da9d145af8761b045389b7226e3b2806bf;p=tt-rss.git

diff --git a/js/prefs.js b/js/prefs.js
old mode 100644
new mode 100755
index 26501bec..965e12fa
--- a/js/prefs.js
+++ b/js/prefs.js
@@ -1,224 +1,197 @@
-var init_params = new Array();
+/* global dijit, __ */
 
-var hotkey_prefix = false;
-var hotkey_prefix_pressed = false;
-
-var seq = "";
+let seq = "";
 
 function notify_callback2(transport, sticky) {
 	notify_info(transport.responseText, sticky);
 }
 
-function updateFeedList(sort_key) {
+function updateFeedList() {
 
-	var user_search = $("feed_search");
-	var search = "";
+	const user_search = $("feed_search");
+	let search = "";
 	if (user_search) { search = user_search.value; }
 
-	new Ajax.Request("backend.php", {
-		parameters: "?op=pref-feeds&search=" + param_escape(search),
-		onComplete: function(transport) {
-			dijit.byId('feedConfigTab').attr('content', transport.responseText);
-			selectTab("feedConfig", true);
-			notify("");
-		} });
+	xhrPost("backend.php", { op: "pref-feeds", search: search }, (transport) => {
+		dijit.byId('feedConfigTab').attr('content', transport.responseText);
+		selectTab("feedConfig", true);
+		notify("");
+	});
 }
 
-
-function updateUsersList(sort_key) {
-	try {
-		var user_search = $("user_search");
-		var search = "";
-		if (user_search) { search = user_search.value; }
-
-		var query = "?op=pref-users&sort="
-			+ param_escape(sort_key) +
-			"&search=" + param_escape(search);
-
-		new Ajax.Request("backend.php", {
-			parameters: query,
-			onComplete: function(transport) {
-				dijit.byId('userConfigTab').attr('content', transport.responseText);
-				selectTab("userConfig", true)
-				notify("");
-			} });
-
-	} catch (e) {
-		exception_error("updateUsersList", e);
-	}
+function checkInactiveFeeds() {
+	xhrPost("backend.php", { op: "pref-feeds", method: "getinactivefeeds" }, (transport) => {
+		if (parseInt(transport.responseText) > 0) {
+			Element.show(dijit.byId("pref_feeds_inactive_btn").domNode);
+		}
+	});
 }
 
-function addUser() {
+function updateUsersList(sort_key) {
+	const user_search = $("user_search");
+	const search = user_search ? user_search.value : "";
 
-	try {
+	const query = { op: "pref-users", sort:  sort_key, search: search };
 
-		var login = prompt(__("Please enter login:"), "");
+	xhrPost("backend.php", query, (transport) => {
+		dijit.byId('userConfigTab').attr('content', transport.responseText);
+		selectTab("userConfig", true)
+		notify("");
+	});
+}
 
-		if (login == null) {
-			return false;
-		}
+function addUser() {
+	const login = prompt(__("Please enter login:"), "");
 
-		if (login == "") {
-			alert(__("Can't create user: no login specified."));
-			return false;
-		}
+	if (login == null) {
+		return false;
+	}
 
-		notify_progress("Adding user...");
+	if (login == "") {
+		alert(__("Can't create user: no login specified."));
+		return false;
+	}
 
-		var query = "?op=pref-users&method=add&login=" +
-			param_escape(login);
+	notify_progress("Adding user...");
 
-		new Ajax.Request("backend.php", {
-			parameters: query,
-			onComplete: function(transport) {
-				notify_callback2(transport);
-				updateUsersList();
-			} });
+	xhrPost("backend.php", { op: "pref-users", method: "add", login: login }, (transport) => {
+        notify_callback2(transport);
+        updateUsersList();
+    });
 
-	} catch (e) {
-		exception_error("addUser", e);
-	}
 }
 
-function editUser(id, event) {
+function editUser(id) {
 
-	try {
-		notify_progress("Loading, please wait...");
+	const query = "backend.php?op=pref-users&method=edit&id=" +
+		param_escape(id);
 
-		var query = "?op=pref-users&method=edit&id=" +
-			param_escape(id);
+	if (dijit.byId("userEditDlg"))
+		dijit.byId("userEditDlg").destroyRecursive();
 
-		new Ajax.Request("backend.php",	{
-			parameters: query,
-			onComplete: function(transport) {
-					infobox_callback2(transport);
-					document.forms['user_edit_form'].login.focus();
-				} });
+	const dialog = new dijit.Dialog({
+		id: "userEditDlg",
+		title: __("User Editor"),
+		style: "width: 600px",
+		execute: function () {
+			if (this.validate()) {
+				notify_progress("Saving data...", true);
 
-	} catch (e) {
-		exception_error("editUser", e);
-	}
+				xhrPost("backend.php", dojo.formToObject("user_edit_form"), (transport) => {
+                    dialog.hide();
+                    updateUsersList();
+                });
+			}
+		},
+		href: query
+	});
 
+	dialog.show();
 }
 
 function editFilter(id) {
-	try {
-
-		var query = "backend.php?op=pref-filters&method=edit&id=" + param_escape(id);
-
-		if (dijit.byId("feedEditDlg"))
-			dijit.byId("feedEditDlg").destroyRecursive();
 
-		if (dijit.byId("filterEditDlg"))
-			dijit.byId("filterEditDlg").destroyRecursive();
-
-		dialog = new dijit.Dialog({
-			id: "filterEditDlg",
-			title: __("Edit Filter"),
-			style: "width: 600px",
-			test: function() {
-				var query = "backend.php?" + dojo.formToQuery("filter_edit_form") + "&savemode=test";
+	const query = "backend.php?op=pref-filters&method=edit&id=" + param_escape(id);
+
+	if (dijit.byId("feedEditDlg"))
+		dijit.byId("feedEditDlg").destroyRecursive();
+
+	if (dijit.byId("filterEditDlg"))
+		dijit.byId("filterEditDlg").destroyRecursive();
+
+	const dialog = new dijit.Dialog({
+		id: "filterEditDlg",
+		title: __("Edit Filter"),
+		style: "width: 600px",
+
+		test: function () {
+			const query = "backend.php?" + dojo.formToQuery("filter_edit_form") + "&savemode=test";
+
+			editFilterTest(query);
+		},
+		selectRules: function (select) {
+			$$("#filterDlg_Matches input[type=checkbox]").each(function (e) {
+				e.checked = select;
+				if (select)
+					e.parentNode.addClassName("Selected");
+				else
+					e.parentNode.removeClassName("Selected");
+			});
+		},
+		selectActions: function (select) {
+			$$("#filterDlg_Actions input[type=checkbox]").each(function (e) {
+				e.checked = select;
+
+				if (select)
+					e.parentNode.addClassName("Selected");
+				else
+					e.parentNode.removeClassName("Selected");
+
+			});
+		},
+		editRule: function (e) {
+			const li = e.parentNode;
+			const rule = li.getElementsByTagName("INPUT")[1].value;
+			addFilterRule(li, rule);
+		},
+		editAction: function (e) {
+			const li = e.parentNode;
+			const action = li.getElementsByTagName("INPUT")[1].value;
+			addFilterAction(li, action);
+		},
+		removeFilter: function () {
+			const msg = __("Remove filter?");
+
+			if (confirm(msg)) {
+				this.hide();
 
-				if (dijit.byId("filterTestDlg"))
-					dijit.byId("filterTestDlg").destroyRecursive();
+				notify_progress("Removing filter...");
 
-				var test_dlg = new dijit.Dialog({
-					id: "filterTestDlg",
-					title: "Test Filter",
-					style: "width: 600px",
-					href: query});
+				const query = { op: "pref-filters", method: "remove", ids: this.attr('value').id };
 
-				test_dlg.show();
-			},
-			selectRules: function(select) {
-				$$("#filterDlg_Matches input[type=checkbox]").each(function(e) {
-					e.checked = select;
-					if (select)
-						e.parentNode.addClassName("Selected");
-					else
-						e.parentNode.removeClassName("Selected");
+				xhrPost("backend.php", query, () => {
+					updateFilterList();
 				});
-			},
-			selectActions: function(select) {
-				$$("#filterDlg_Actions input[type=checkbox]").each(function(e) {
-					e.checked = select;
-
-					if (select)
-						e.parentNode.addClassName("Selected");
-					else
-						e.parentNode.removeClassName("Selected");
-
+			}
+		},
+		addAction: function () {
+			addFilterAction();
+		},
+		addRule: function () {
+			addFilterRule();
+		},
+		deleteAction: function () {
+			$$("#filterDlg_Actions li[class*=Selected]").each(function (e) {
+				e.parentNode.removeChild(e)
+			});
+		},
+		deleteRule: function () {
+			$$("#filterDlg_Matches li[class*=Selected]").each(function (e) {
+				e.parentNode.removeChild(e)
+			});
+		},
+		execute: function () {
+			if (this.validate()) {
+
+				notify_progress("Saving data...", true);
+
+				xhrPost("backend.php", dojo.formToObject("filter_edit_form"), () => {
+					dialog.hide();
+					updateFilterList();
 				});
-			},
-			editRule: function(e) {
-				var li = e.parentNode;
-				var rule = li.getElementsByTagName("INPUT")[1].value;
-				addFilterRule(li, rule);
-			},
-			editAction: function(e) {
-				var li = e.parentNode;
-				var action = li.getElementsByTagName("INPUT")[1].value;
-				addFilterAction(li, action);
-			},
-			removeFilter: function() {
-				var msg = __("Remove filter?");
-
-				if (confirm(msg)) {
-					this.hide();
-
-					notify_progress("Removing filter...");
-
-					var id = this.attr('value').id;
-
-					var query = "?op=pref-filters&method=remove&ids="+
-						param_escape(id);
-
-					new Ajax.Request("backend.php",	{
-						parameters: query,
-						onComplete: function(transport) {
-							updateFilterList();
-						} });
-				}
-			},
-			addAction: function() { addFilterAction(); },
-			addRule: function() { addFilterRule(); },
-			deleteAction: function() {
-				$$("#filterDlg_Actions li.[class*=Selected]").each(function(e) { e.parentNode.removeChild(e) });
-			},
-			deleteRule: function() {
-				$$("#filterDlg_Matches li.[class*=Selected]").each(function(e) { e.parentNode.removeChild(e) });
-			},
-			execute: function() {
-				if (this.validate()) {
-
-					notify_progress("Saving data...", true);
-
-					var query = dojo.formToQuery("filter_edit_form");
-
-					console.log(query);
-
-					new Ajax.Request("backend.php", {
-						parameters: query,
-						onComplete: function(transport) {
-							dialog.hide();
-							updateFilterList();
-						}});
-				}
-			},
-			href: query});
-
-		dialog.show();
-
+			}
+		},
+		href: query
+	});
 
-	} catch (e) {
-		exception_error("editFilter", e);
-	}
+	dialog.show();
 }
 
+
 function getSelectedLabels() {
-	var tree = dijit.byId("labelTree");
-	var items = tree.model.getCheckedItems();
-	var rv = [];
+	const tree = dijit.byId("labelTree");
+	const items = tree.model.getCheckedItems();
+	const rv = [];
 
 	items.each(function(item) {
 		rv.push(tree.model.store.getValue(item, 'bare_id'));
@@ -232,9 +205,9 @@ function getSelectedUsers() {
 }
 
 function getSelectedFeeds() {
-	var tree = dijit.byId("feedTree");
-	var items = tree.model.getCheckedItems();
-	var rv = [];
+	const tree = dijit.byId("feedTree");
+	const items = tree.model.getCheckedItems();
+	const rv = [];
 
 	items.each(function(item) {
 		if (item.id[0].match("FEED:"))
@@ -245,9 +218,9 @@ function getSelectedFeeds() {
 }
 
 function getSelectedCategories() {
-	var tree = dijit.byId("feedTree");
-	var items = tree.model.getCheckedItems();
-	var rv = [];
+	const tree = dijit.byId("feedTree");
+	const items = tree.model.getCheckedItems();
+	const rv = [];
 
 	items.each(function(item) {
 		if (item.id[0].match("CAT:"))
@@ -258,9 +231,9 @@ function getSelectedCategories() {
 }
 
 function getSelectedFilters() {
-	var tree = dijit.byId("filterTree");
-	var items = tree.model.getCheckedItems();
-	var rv = [];
+	const tree = dijit.byId("filterTree");
+	const items = tree.model.getCheckedItems();
+	const rv = [];
 
 	items.each(function(item) {
 		rv.push(tree.model.store.getValue(item, 'bare_id'));
@@ -272,24 +245,18 @@ function getSelectedFilters() {
 
 function removeSelectedLabels() {
 
-	var sel_rows = getSelectedLabels();
+	const sel_rows = getSelectedLabels();
 
 	if (sel_rows.length > 0) {
-
-		var ok = confirm(__("Remove selected labels?"));
-
-		if (ok) {
+		if (confirm(__("Remove selected labels?"))) {
 			notify_progress("Removing selected labels...");
 
-			var query = "?op=pref-labels&method=remove&ids="+
-				param_escape(sel_rows.toString());
-
-			new Ajax.Request("backend.php",	{
-				parameters: query,
-				onComplete: function(transport) {
-						updateLabelList();
-					} });
+			const query = { op: "pref-labels", method: "remove",
+				ids: sel_rows.toString() };
 
+			xhrPost("backend.php",	query, () => {
+				updateLabelList();
+			});
 		}
 	} else {
 		alert(__("No labels are selected."));
@@ -300,34 +267,23 @@ function removeSelectedLabels() {
 
 function removeSelectedUsers() {
 
-	try {
-
-		var sel_rows = getSelectedUsers();
+	const sel_rows = getSelectedUsers();
 
-		if (sel_rows.length > 0) {
-
-			var ok = confirm(__("Remove selected users? Neither default admin nor your account will be removed."));
-
-			if (ok) {
-				notify_progress("Removing selected users...");
-
-				var query = "?op=pref-users&method=remove&ids="+
-					param_escape(sel_rows.toString());
+	if (sel_rows.length > 0) {
 
-				new Ajax.Request("backend.php", {
-					parameters: query,
-					onComplete: function(transport) {
-						updateUsersList();
-					} });
+		if (confirm(__("Remove selected users? Neither default admin nor your account will be removed."))) {
+			notify_progress("Removing selected users...");
 
-			}
+			const query = { op: "pref-users", method: "remove",
+				ids: sel_rows.toString() };
 
-		} else {
-			alert(__("No users are selected."));
+			xhrPost("backend.php", query, () => {
+				updateUsersList();
+			});
 		}
 
-	} catch (e) {
-		exception_error("removeSelectedUsers", e);
+	} else {
+		alert(__("No users are selected."));
 	}
 
 	return false;
@@ -335,173 +291,52 @@ function removeSelectedUsers() {
 
 function removeSelectedFilters() {
 
-	try {
-
-		var sel_rows = getSelectedFilters();
-
-		if (sel_rows.length > 0) {
-
-			var ok = confirm(__("Remove selected filters?"));
-
-			if (ok) {
-				notify_progress("Removing selected filters...");
-
-				var query = "?op=pref-filters&method=remove&ids="+
-					param_escape(sel_rows.toString());
-
-				new Ajax.Request("backend.php",	{
-						parameters: query,
-						onComplete: function(transport) {
-							updateFilterList();
-						} });
-			}
-		} else {
-			alert(__("No filters are selected."));
-		}
-
-	} catch (e) {
-		exception_error("removeSelectedFilters", e);
-	}
-
-	return false;
-}
-
-
-function removeSelectedFeeds() {
-
-	try {
-
-		var sel_rows = getSelectedFeeds();
-
-		if (sel_rows.length > 0) {
-
-			var ok = confirm(__("Unsubscribe from selected feeds?"));
-
-			if (ok) {
-
-				notify_progress("Unsubscribing from selected feeds...", true);
-
-				var query = "?op=pref-feeds&method=remove&ids="+
-					param_escape(sel_rows.toString());
-
-				console.log(query);
-
-				new Ajax.Request("backend.php",	{
-					parameters: query,
-					onComplete: function(transport) {
-						updateFeedList();
-						} });
-			}
-
-		} else {
-			alert(__("No feeds are selected."));
-		}
-
-	} catch (e) {
-		exception_error("removeSelectedFeeds", e);
-	}
-
-	return false;
-}
-
-function clearSelectedFeeds() {
-
-	var sel_rows = getSelectedFeeds();
-
-	if (sel_rows.length > 1) {
-		alert(__("Please select only one feed."));
-		return;
-	}
+	const sel_rows = getSelectedFilters();
 
 	if (sel_rows.length > 0) {
+		if (confirm(__("Remove selected filters?"))) {
+			notify_progress("Removing selected filters...");
 
-		var ok = confirm(__("Erase all non-starred articles in selected feed?"));
+			const query = { op: "pref-filters", method: "remove",
+				ids:  sel_rows.toString() };
 
-		if (ok) {
-			notify_progress("Clearing selected feed...");
-			clearFeedArticles(sel_rows[0]);
+			xhrPost("backend.php", query, () => {
+				updateFilterList();
+			});
 		}
-
 	} else {
-
-		alert(__("No feeds are selected."));
-
+		alert(__("No filters are selected."));
 	}
 
 	return false;
 }
 
-function purgeSelectedFeeds() {
+function removeSelectedFeeds() {
 
-	var sel_rows = getSelectedFeeds();
+	const sel_rows = getSelectedFeeds();
 
 	if (sel_rows.length > 0) {
+		if (confirm(__("Unsubscribe from selected feeds?"))) {
 
-		var pr = prompt(__("How many days of articles to keep (0 - use default)?"), "0");
+			notify_progress("Unsubscribing from selected feeds...", true);
 
-		if (pr != undefined) {
-			notify_progress("Purging selected feed...");
+			const query = { op: "pref-feeds", method: "remove",
+				ids: sel_rows.toString() };
 
-			var query = "?op=rpc&method=purge&ids="+
-				param_escape(sel_rows.toString()) + "&days=" + pr;
-
-			console.log(query);
-
-			new Ajax.Request("prefs.php",	{
-				parameters: query,
-				onComplete: function(transport) {
-					notify('');
-				} });
+			xhrPost("backend.php", query, () => {
+				updateFeedList();
+			});
 		}
 
 	} else {
-
 		alert(__("No feeds are selected."));
-
-	}
-
-	return false;
-}
-
-function userEditCancel() {
-	closeInfoBox();
-	return false;
-}
-
-function userEditSave() {
-
-	try {
-
-		var login = document.forms["user_edit_form"].login.value;
-
-		if (login.length == 0) {
-			alert(__("Login field cannot be blank."));
-			return;
-		}
-
-		notify_progress("Saving user...");
-
-		closeInfoBox();
-
-		var query = Form.serialize("user_edit_form");
-
-		new Ajax.Request("backend.php", {
-			parameters: query,
-			onComplete: function(transport) {
-				updateUsersList();
-			} });
-
-	} catch (e) {
-		exception_error("userEditSave", e);
 	}
 
 	return false;
-
 }
 
-
 function editSelectedUser() {
-	var rows = getSelectedUsers();
+	const rows = getSelectedUsers();
 
 	if (rows.length == 0) {
 		alert(__("No users are selected."));
@@ -520,78 +355,65 @@ function editSelectedUser() {
 
 function resetSelectedUserPass() {
 
-	try {
-
-		var rows = getSelectedUsers();
-
-		if (rows.length == 0) {
-			alert(__("No users are selected."));
-			return;
-		}
-
-		if (rows.length > 1) {
-			alert(__("Please select only one user."));
-			return;
-		}
-
-		var ok = confirm(__("Reset password of selected user?"));
+	const rows = getSelectedUsers();
 
-		if (ok) {
-			notify_progress("Resetting password for selected user...");
+	if (rows.length == 0) {
+		alert(__("No users are selected."));
+		return;
+	}
 
-			var id = rows[0];
+	if (rows.length > 1) {
+		alert(__("Please select only one user."));
+		return;
+	}
 
-			var query = "?op=pref-users&method=resetPass&id=" +
-				param_escape(id);
+	if (confirm(__("Reset password of selected user?"))) {
+		notify_progress("Resetting password for selected user...");
 
-			new Ajax.Request("backend.php", {
-				parameters: query,
-				onComplete: function(transport) {
-					notify_info(transport.responseText, true);
-				} });
+		const id = rows[0];
 
-		}
+		xhrPost("backend.php", { op: "pref-users", method: "resetPass", id: id }, (transport) => {
+			notify_info(transport.responseText, true);
+		});
 
-	} catch (e) {
-		exception_error("resetSelectedUserPass", e);
 	}
 }
 
 function selectedUserDetails() {
 
-	try {
-
-		var rows = getSelectedUsers();
+	const rows = getSelectedUsers();
 
-		if (rows.length == 0) {
-			alert(__("No users are selected."));
-			return;
-		}
+	if (rows.length == 0) {
+		alert(__("No users are selected."));
+		return;
+	}
 
-		if (rows.length > 1) {
-			alert(__("Please select only one user."));
-			return;
-		}
+	if (rows.length > 1) {
+		alert(__("Please select only one user."));
+		return;
+	}
 
-		notify_progress("Loading, please wait...");
+	const query = "backend.php?op=pref-users&method=userdetails&id=" + param_escape(rows[0]);
 
-		var id = rows[0];
+	if (dijit.byId("userDetailsDlg"))
+		dijit.byId("userDetailsDlg").destroyRecursive();
 
-		var query = "?op=pref-users&method=userdetails&id=" + id;
+	const dialog = new dijit.Dialog({
+		id: "userDetailsDlg",
+		title: __("User details"),
+		style: "width: 600px",
+		execute: function () {
+			dialog.hide();
+		},
+		href: query
+	});
 
-		new Ajax.Request("backend.php",	{
-			parameters: query,
-			onComplete: function(transport) {
-					infobox_callback2(transport);
-				} });
-	} catch (e) {
-		exception_error("selectedUserDetails", e);
-	}
+	dialog.show();
 }
 
 
 function editSelectedFilter() {
-	var rows = getSelectedFilters();
+	const rows = getSelectedFilters();
 
 	if (rows.length == 0) {
 		alert(__("No filters are selected."));
@@ -610,33 +432,24 @@ function editSelectedFilter() {
 }
 
 function joinSelectedFilters() {
-	var rows = getSelectedFilters();
+	const rows = getSelectedFilters();
 
 	if (rows.length == 0) {
 		alert(__("No filters are selected."));
 		return;
 	}
 
-	var ok = confirm(__("Combine selected filters?"));
-
-	if (ok) {
+	if (confirm(__("Combine selected filters?"))) {
 		notify_progress("Joining filters...");
 
-		var query = "?op=pref-filters&method=join&ids="+
-			param_escape(rows.toString());
-
-		console.log(query);
-
-		new Ajax.Request("backend.php",	{
-			parameters: query,
-			onComplete: function(transport) {
-					updateFilterList();
-			} });
+		xhrPost("backend.php", { op: "pref-filters", method: "join", ids: rows.toString() }, () => {
+			updateFilterList();
+		});
 	}
 }
 
 function editSelectedFeed() {
-	var rows = getSelectedFeeds();
+	const rows = getSelectedFeeds();
 
 	if (rows.length == 0) {
 		alert(__("No feeds are selected."));
@@ -654,159 +467,105 @@ function editSelectedFeed() {
 }
 
 function editSelectedFeeds() {
+	const rows = getSelectedFeeds();
 
-	try {
-		var rows = getSelectedFeeds();
+	if (rows.length == 0) {
+		alert(__("No feeds are selected."));
+		return;
+	}
 
-		if (rows.length == 0) {
-			alert(__("No feeds are selected."));
-			return;
-		}
+	notify_progress("Loading, please wait...");
 
-		notify_progress("Loading, please wait...");
+	if (dijit.byId("feedEditDlg"))
+		dijit.byId("feedEditDlg").destroyRecursive();
 
-		var query = "backend.php?op=pref-feeds&method=editfeeds&ids=" +
-			param_escape(rows.toString());
-
-		console.log(query);
-
-		if (dijit.byId("feedEditDlg"))
-			dijit.byId("feedEditDlg").destroyRecursive();
-
-		new Ajax.Request("backend.php", {
-			parameters: query,
-			onComplete: function(transport) {
-
-				notify("");
-
-				var dialog = new dijit.Dialog({
-					id: "feedEditDlg",
-					title: __("Edit Multiple Feeds"),
-					style: "width: 600px",
-					getChildByName: function (name) {
-						var rv = null;
-						this.getChildren().each(
-							function(child) {
-								if (child.name == name) {
-									rv = child;
-									return;
-								}
-							});
-						return rv;
-					},
-					toggleField: function (checkbox, elem, label) {
-						this.getChildByName(elem).attr('disabled', !checkbox.checked);
-
-						if ($(label))
-							if (checkbox.checked)
-								$(label).removeClassName('insensitive');
-							else
-								$(label).addClassName('insensitive');
-
-					},
-					execute: function() {
-						if (this.validate() && confirm(__("Save changes to selected feeds?"))) {
-							var query = dojo.objectToQuery(this.attr('value'));
-
-							/* Form.serialize ignores unchecked checkboxes */
-
-							if (!query.match("&private=") &&
-									this.getChildByName('private').attr('disabled') == false) {
-								query = query + "&private=false";
-							}
-
-							try {
-								if (!query.match("&cache_images=") &&
-										this.getChildByName('cache_images').attr('disabled') == false) {
-									query = query + "&cache_images=false";
-								}
-							} catch (e) { }
-
-							try {
-								if (!query.match("&hide_images=") &&
-										this.getChildByName('hide_images').attr('disabled') == false) {
-									query = query + "&hide_images=false";
-								}
-							} catch (e) { }
-
-							if (!query.match("&include_in_digest=") &&
-									this.getChildByName('include_in_digest').attr('disabled') == false) {
-								query = query + "&include_in_digest=false";
-							}
-
-							if (!query.match("&always_display_enclosures=") &&
-									this.getChildByName('always_display_enclosures').attr('disabled') == false) {
-								query = query + "&always_display_enclosures=false";
-							}
-
-							if (!query.match("&mark_unread_on_update=") &&
-									this.getChildByName('mark_unread_on_update').attr('disabled') == false) {
-								query = query + "&mark_unread_on_update=false";
-							}
-
-							console.log(query);
-
-							notify_progress("Saving data...", true);
-
-							new Ajax.Request("backend.php", {
-								parameters: query,
-								onComplete: function(transport) {
-									dialog.hide();
-									updateFeedList();
-							}});
+	xhrPost("backend.php", { op: "pref-feeds", method: "editfeeds", ids: rows.toString() }, (transport) => {
+		notify("");
+
+		const dialog = new dijit.Dialog({
+			id: "feedEditDlg",
+			title: __("Edit Multiple Feeds"),
+			style: "width: 600px",
+			getChildByName: function (name) {
+				let rv = null;
+				this.getChildren().each(
+					function (child) {
+						if (child.name == name) {
+							rv = child;
+							return;
 						}
-					},
-					content: transport.responseText});
+					});
+				return rv;
+			},
+			toggleField: function (checkbox, elem, label) {
+				this.getChildByName(elem).attr('disabled', !checkbox.checked);
 
-					dialog.show();
+				if ($(label))
+					if (checkbox.checked)
+						$(label).removeClassName('insensitive');
+					else
+						$(label).addClassName('insensitive');
+
+			},
+			execute: function () {
+				if (this.validate() && confirm(__("Save changes to selected feeds?"))) {
+					const query = this.attr('value');
 
-			} });
+					/* normalize unchecked checkboxes because [] is not serialized */
 
-	} catch (e) {
-		exception_error("editSelectedFeeds", e);
-	}
+					Object.keys(query).each((key) => {
+						let val = query[key];
+
+						if (typeof val == "object" && val.length == 0)
+							query[key] = ["off"];
+					});
+
+					notify_progress("Saving data...", true);
+
+					xhrPost("backend.php", query, () => {
+						dialog.hide();
+						updateFeedList();
+					});
+				}
+			},
+			content: transport.responseText
+		});
+
+		dialog.show();
+	});
 }
 
 function opmlImportComplete(iframe) {
-	try {
-		if (!iframe.contentDocument.body.innerHTML) return false;
+	if (!iframe.contentDocument.body.innerHTML) return false;
 
-		Element.show(iframe);
+	Element.show(iframe);
 
-		notify('');
+	notify('');
 
-		if (dijit.byId('opmlImportDlg'))
-			dijit.byId('opmlImportDlg').destroyRecursive();
+	if (dijit.byId('opmlImportDlg'))
+		dijit.byId('opmlImportDlg').destroyRecursive();
 
-		var content = iframe.contentDocument.body.innerHTML;
+	const content = iframe.contentDocument.body.innerHTML;
 
-		dialog = new dijit.Dialog({
-			id: "opmlImportDlg",
-			title: __("OPML Import"),
-			style: "width: 600px",
-			onCancel: function() {
-				updateFeedList();
-				updateFilterList();
-				updateLabelList();
-			},
-			execute: function() {
-				updateFeedList();
-				updateFilterList();
-				updateLabelList();
-				this.hide();
-			},
-			content: content});
-
-		dialog.show();
+	const dialog = new dijit.Dialog({
+		id: "opmlImportDlg",
+		title: __("OPML Import"),
+		style: "width: 600px",
+		onCancel: function () {
+            window.location.reload();
+		},
+		execute: function () {
+			window.location.reload();
+		},
+		content: content
+	});
 
-	} catch (e) {
-		exception_error("opmlImportComplete", e);
-	}
+	dialog.show();
 }
 
 function opmlImport() {
 
-	var opml_file = $("opml_file");
+	const opml_file = $("opml_file");
 
 	if (opml_file.value.length == 0) {
 		alert(__("Please choose an OPML file first."));
@@ -822,309 +581,225 @@ function opmlImport() {
 
 
 function updateFilterList() {
-	var user_search = $("filter_search");
-	var search = "";
+	const user_search = $("filter_search");
+	let search = "";
 	if (user_search) { search = user_search.value; }
 
-	new Ajax.Request("backend.php",	{
-		parameters: "?op=pref-filters&search=" + param_escape(search),
-		onComplete: function(transport) {
-			dijit.byId('filterConfigTab').attr('content', transport.responseText);
-			notify("");
-		} });
+	xhrPost("backend.php", { op: "pref-filters", search: search }, (transport) => {
+        dijit.byId('filterConfigTab').attr('content', transport.responseText);
+        notify("");
+    });
 }
 
 function updateLabelList() {
-	new Ajax.Request("backend.php",	{
-		parameters: "?op=pref-labels",
-		onComplete: function(transport) {
-			dijit.byId('labelConfigTab').attr('content', transport.responseText);
-			notify("");
-		} });
+	xhrPost("backend.php", { op: "pref-labels" }, (transport) => {
+        dijit.byId('labelConfigTab').attr('content', transport.responseText);
+        notify("");
+    });
 }
 
 function updatePrefsList() {
-	new Ajax.Request("backend.php", {
-		parameters: "?op=pref-prefs",
-		onComplete: function(transport) {
-			dijit.byId('genConfigTab').attr('content', transport.responseText);
-			notify("");
-		} });
+    xhrPost("backend.php", { op: "pref-prefs" }, (transport) => {
+        dijit.byId('genConfigTab').attr('content', transport.responseText);
+        notify("");
+    });
 }
 
-function selectTab(id, noupdate, method) {
-	try {
-		if (!noupdate) {
-			notify_progress("Loading, please wait...");
-
-			if (id == "feedConfig") {
-				updateFeedList();
-			} else if (id == "filterConfig") {
-				updateFilterList();
-			} else if (id == "labelConfig") {
-				updateLabelList();
-			} else if (id == "genConfig") {
-				updatePrefsList();
-			} else if (id == "userConfig") {
-				updateUsersList();
-			}
+function updateSystemList() {
+    xhrPost("backend.php", { op: "pref-system" }, (transport) => {
+        dijit.byId('systemConfigTab').attr('content', transport.responseText);
+        notify("");
+    });
+}
 
-			var tab = dijit.byId(id + "Tab");
-			dijit.byId("pref-tabs").selectChild(tab);
+function selectTab(id, noupdate) {
+	if (!noupdate) {
+		notify_progress("Loading, please wait...");
 
+		switch (id) {
+			case "feedConfig":
+                updateFeedList();
+				break;
+			case "filterConfig":
+                updateFilterList();
+				break;
+			case "labelConfig":
+                updateLabelList();
+				break;
+			case "genConfig":
+                updatePrefsList();
+				break;
+			case "userConfig":
+                updateUsersList();
+				break;
+			case "systemConfig":
+                updateSystemList();
+				break;
+			default:
+				console.warn("unknown tab", id);
 		}
 
-	} catch (e) {
-		exception_error("selectTab", e);
+		const tab = dijit.byId(id + "Tab");
+		dijit.byId("pref-tabs").selectChild(tab);
+
 	}
 }
 
 function init_second_stage() {
-	try {
-
-		document.onkeydown = pref_hotkey_handler;
-		loading_set_progress(50);
-		notify("");
-
-		dojo.addOnLoad(function() {
-			var tab = getURLParam('tab');
+	document.onkeydown = pref_hotkey_handler;
+	loading_set_progress(50);
+	notify("");
 
-			if (tab) {
-			  	tab = dijit.byId(tab + "Tab");
-				if (tab) dijit.byId("pref-tabs").selectChild(tab);
-			}
+	let tab = getURLParam('tab');
 
-			var method = getURLParam('method');
+	if (tab) {
+		tab = dijit.byId(tab + "Tab");
+		if (tab) dijit.byId("pref-tabs").selectChild(tab);
+	}
 
-			if (method == 'editFeed') {
-				var param = getURLParam('methodparam');
+	const method = getURLParam('method');
 
-				window.setTimeout('editFeed(' + param + ')', 100);
-			}
-		});
-
-		setTimeout("hotkey_prefix_timeout()", 5*1000);
+	if (method == 'editFeed') {
+		const param = getURLParam('methodparam');
 
-	} catch (e) {
-		exception_error("init_second_stage", e);
+		window.setTimeout(function() { editFeed(param) }, 100);
 	}
+
+	setInterval(hotkey_prefix_timeout, 5*1000);
 }
 
 function init() {
-
-	try {
-		dojo.registerModulePath("lib", "..");
-		dojo.registerModulePath("fox", "../../js/");
-
-		dojo.require("dijit.ColorPalette");
-		dojo.require("dijit.Dialog");
-		dojo.require("dijit.form.Button");
-		dojo.require("dijit.form.CheckBox");
-		dojo.require("dijit.form.DropDownButton");
-		dojo.require("dijit.form.FilteringSelect");
-		dojo.require("dijit.form.Form");
-		dojo.require("dijit.form.RadioButton");
-		dojo.require("dijit.form.Select");
-		dojo.require("dijit.form.SimpleTextarea");
-		dojo.require("dijit.form.TextBox");
-		dojo.require("dijit.form.ValidationTextBox");
-		dojo.require("dijit.InlineEditBox");
-		dojo.require("dijit.layout.AccordionContainer");
-		dojo.require("dijit.layout.BorderContainer");
-		dojo.require("dijit.layout.ContentPane");
-		dojo.require("dijit.layout.TabContainer");
-		dojo.require("dijit.Menu");
-		dojo.require("dijit.ProgressBar");
-		dojo.require("dijit.ProgressBar");
-		dojo.require("dijit.Toolbar");
-		dojo.require("dijit.Tree");
-		dojo.require("dijit.tree.dndSource");
-		dojo.require("dojo.data.ItemFileWriteStore");
-
-		dojo.require("lib.CheckBoxTree");
-		dojo.require("fox.PrefFeedTree");
-		dojo.require("fox.PrefFilterTree");
-		dojo.require("fox.PrefLabelTree");
-
-		dojo.parser.parse();
-
-		dojo.addOnLoad(function() {
-			loading_set_progress(50);
-
-			new Ajax.Request("backend.php", {
-				parameters: {op: "rpc", method: "sanityCheck"},
-					onComplete: function(transport) {
+	window.onerror = function (message, filename, lineno, colno, error) {
+		report_error(message, filename, lineno, colno, error);
+	};
+
+	require(["dojo/_base/kernel",
+		"dojo/ready",
+		"dojo/parser",
+		"dojo/_base/loader",
+		"dojo/_base/html",
+		"dijit/ColorPalette",
+		"dijit/Dialog",
+		"dijit/form/Button",
+		"dijit/form/CheckBox",
+		"dijit/form/DropDownButton",
+		"dijit/form/FilteringSelect",
+        "dijit/form/MultiSelect",
+		"dijit/form/Form",
+		"dijit/form/RadioButton",
+		"dijit/form/ComboButton",
+		"dijit/form/Select",
+		"dijit/form/SimpleTextarea",
+		"dijit/form/TextBox",
+		"dijit/form/ValidationTextBox",
+		"dijit/InlineEditBox",
+		"dijit/layout/AccordionContainer",
+		"dijit/layout/AccordionPane",
+		"dijit/layout/BorderContainer",
+		"dijit/layout/ContentPane",
+		"dijit/layout/TabContainer",
+		"dijit/Menu",
+		"dijit/ProgressBar",
+		"dijit/Toolbar",
+		"dijit/Tree",
+		"dijit/tree/dndSource",
+		"dojo/data/ItemFileWriteStore",
+		"lib/CheckBoxStoreModel",
+		"lib/CheckBoxTree",
+		"fox/PrefFeedStore",
+		"fox/PrefFilterStore",
+		"fox/PrefFeedTree",
+		"fox/PrefFilterTree",
+		"fox/PrefLabelTree"], function (dojo, ready, parser) {
+
+		ready(function () {
+			try {
+				parser.parse();
+
+				loading_set_progress(50);
+
+				const clientTzOffset = new Date().getTimezoneOffset() * 60;
+				const params = { op: "rpc", method: "sanityCheck", clientTzOffset: clientTzOffset };
+
+				xhrPost("backend.php", params, (transport) => {
 					backend_sanity_check_callback(transport);
-				} });
-		});
+				});
 
-	} catch (e) {
-		exception_error("init", e);
-	}
+			} catch (e) {
+				exception_error(e);
+			}
+		});
+	});
 }
 
-function validatePrefsReset() {
-	try {
-		var ok = confirm(__("Reset to defaults?"));
-
-		if (ok) {
 
-			query = "?op=pref-prefs&method=resetconfig";
-			console.log(query);
-
-			new Ajax.Request("backend.php", {
-				parameters: query,
-				onComplete: function(transport) {
-					var msg = transport.responseText;
-					if (msg.match("PREFS_THEME_CHANGED")) {
-						window.location.reload();
-					} else {
-						notify_info(msg);
-						selectTab();
-					}
-				} });
+function validatePrefsReset() {
+	if (confirm(__("Reset to defaults?"))) {
 
-		}
+		const query = "?op=pref-prefs&method=resetconfig";
 
-	} catch (e) {
-		exception_error("validatePrefsReset", e);
+		xhrPost("backend.php", { op: "pref-prefs", method: "resetconfig" }, (transport) => {
+            updatePrefsList();
+            notify_info(transport.responseText);
+        });
 	}
 
 	return false;
-
 }
 
 function pref_hotkey_handler(e) {
-	try {
-
-		if (e.target.nodeName == "INPUT" || e.target.nodeName == "TEXTAREA") return;
-
-		var keycode = false;
-		var shift_key = false;
-
-		var cmdline = $('cmdline');
-
-		try {
-			shift_key = e.shiftKey;
-		} catch (e) {
-
-		}
-
-		if (window.event) {
-			keycode = window.event.keyCode;
-		} else if (e) {
-			keycode = e.which;
-		}
-
-		var keychar = String.fromCharCode(keycode);
-
-		if (keycode == 27) { // escape
-			hotkey_prefix = false;
-		}
-
-		if (keycode == 16) return; // ignore lone shift
-		if (keycode == 17) return; // ignore lone ctrl
-
-		if (!shift_key) keychar = keychar.toLowerCase();
-
-		var hotkeys = getInitParam("hotkeys");
-
-		if (!hotkey_prefix && hotkeys[0].indexOf(keychar) != -1) {
-
-			var date = new Date();
-			var ts = Math.round(date.getTime() / 1000);
-
-			hotkey_prefix = keychar;
-			hotkey_prefix_pressed = ts;
-
-			cmdline.innerHTML = keychar;
-			Element.show(cmdline);
-
-			return true;
-		}
-
-		Element.hide(cmdline);
-
-		var hotkey = keychar.search(/[a-zA-Z0-9]/) != -1 ? keychar : "(" + keycode + ")";
-		hotkey = hotkey_prefix ? hotkey_prefix + " " + hotkey : hotkey;
-		hotkey_prefix = false;
-
-		var hotkey_action = false;
-		var hotkeys = getInitParam("hotkeys");
-
-		for (sequence in hotkeys[1]) {
-			if (sequence == hotkey) {
-				hotkey_action = hotkeys[1][sequence];
-				break;
-			}
-		}
-
-		switch (hotkey_action) {
-		case "feed_subscribe":
-			quickAddFeed();
-			return false;
-		case "create_label":
-			addLabel();
-			return false;
-		case "create_filter":
-			quickAddFilter();
-			return false;
-		case "help_dialog":
-			//helpDialog("prefs");
-			return false;
-		default:
-			console.log("unhandled action: " + hotkey_action + "; hotkey: " + hotkey);
-		}
-
-	} catch (e) {
-		exception_error("hotkey_handler", e);
+    if (e.target.nodeName == "INPUT" || e.target.nodeName == "TEXTAREA") return;
+
+    const action_name = keyevent_to_action(e);
+
+    if (action_name) {
+        switch (action_name) {
+            case "feed_subscribe":
+                quickAddFeed();
+                return false;
+            case "create_label":
+                addLabel();
+                return false;
+            case "create_filter":
+                quickAddFilter();
+                return false;
+            case "help_dialog":
+                helpDialog("main");
+                return false;
+            default:
+                console.log("unhandled action: " + action_name + "; keycode: " + e.which);
+        }
 	}
 }
 
 function removeCategory(id, item) {
-	try {
-
-		var ok = confirm(__("Remove category %s? Any nested feeds would be placed into Uncategorized.").replace("%s", item.name));
 
-		if (ok) {
-			var query = "?op=pref-feeds&method=removeCat&ids="+
-				param_escape(id);
-
-			notify_progress("Removing category...");
+	if (confirm(__("Remove category %s? Any nested feeds would be placed into Uncategorized.").replace("%s", item.name))) {
+		notify_progress("Removing category...");
 
-			new Ajax.Request("backend.php",	{
-				parameters: query,
-				onComplete: function(transport) {
-					notify('');
-					updateFeedList();
-				} });
-			}
+        const query = { op: "pref-feeds", method: "removeCat",
+            ids: id };
 
-	} catch (e) {
-		exception_error("removeCategory", e);
+		xhrPost("backend.php", query, () => {
+            notify('');
+            updateFeedList();
+        });
 	}
 }
 
 function removeSelectedCategories() {
-
-	var sel_rows = getSelectedCategories();
+	const sel_rows = getSelectedCategories();
 
 	if (sel_rows.length > 0) {
-
-		var ok = confirm(__("Remove selected categories?"));
-
-		if (ok) {
+		if (confirm(__("Remove selected categories?"))) {
 			notify_progress("Removing selected categories...");
 
-			var query = "?op=pref-feeds&method=removeCat&ids="+
-				param_escape(sel_rows.toString());
-
-			new Ajax.Request("backend.php",	{
-				parameters: query,
-				onComplete: function(transport) {
-						updateFeedList();
-					} });
+			const query = { op: "pref-feeds", method: "removeCat",
+				ids: sel_rows.toString() };
 
+			xhrPost("backend.php", query, () => {
+                updateFeedList();
+            });
 		}
 	} else {
 		alert(__("No categories are selected."));
@@ -1134,377 +809,199 @@ function removeSelectedCategories() {
 }
 
 function createCategory() {
-	try {
-		var title = prompt(__("Category title:"));
-
-		if (title) {
+	const title = prompt(__("Category title:"));
 
-			notify_progress("Creating category...");
+	if (title) {
+		notify_progress("Creating category...");
 
-			var query = "?op=pref-feeds&method=addCat&cat=" +
-				param_escape(title);
-
-			new Ajax.Request("backend.php",	{
-				parameters: query,
-				onComplete: function(transport) {
-					notify('');
-					updateFeedList();
-				} });
-		}
-
-	} catch (e) {
-		exception_error("createCategory", e);
+		xhrPost("backend.php", { op: "pref-feeds", method: "addCat", cat: title }, () => {
+            notify('');
+            updateFeedList();
+        });
 	}
 }
 
 function showInactiveFeeds() {
-	try {
-		var query = "backend.php?op=pref-feeds&method=inactiveFeeds";
-
-		if (dijit.byId("inactiveFeedsDlg"))
-			dijit.byId("inactiveFeedsDlg").destroyRecursive();
-
-		dialog = new dijit.Dialog({
-			id: "inactiveFeedsDlg",
-			title: __("Feeds without recent updates"),
-			style: "width: 600px",
-			getSelectedFeeds: function() {
-				return getSelectedTableRowIds("prefInactiveFeedList");
-			},
-			removeSelected: function() {
-				var sel_rows = this.getSelectedFeeds();
-
-				console.log(sel_rows);
-
-				if (sel_rows.length > 0) {
-					var ok = confirm(__("Remove selected feeds?"));
-
-					if (ok) {
-						notify_progress("Removing selected feeds...", true);
-
-						var query = "?op=pref-feeds&method=remove&ids="+
-							param_escape(sel_rows.toString());
-
-						new Ajax.Request("backend.php",	{
-							parameters: query,
-							onComplete: function(transport) {
-								notify('');
-								dialog.hide();
-								updateFeedList();
-							} });
-					}
-
-				} else {
-					alert(__("No feeds are selected."));
-				}
-			},
-			execute: function() {
-				if (this.validate()) {
+	const query = "backend.php?op=pref-feeds&method=inactiveFeeds";
+
+	if (dijit.byId("inactiveFeedsDlg"))
+		dijit.byId("inactiveFeedsDlg").destroyRecursive();
+
+	const dialog = new dijit.Dialog({
+		id: "inactiveFeedsDlg",
+		title: __("Feeds without recent updates"),
+		style: "width: 600px",
+		getSelectedFeeds: function () {
+			return getSelectedTableRowIds("prefInactiveFeedList");
+		},
+		removeSelected: function () {
+			const sel_rows = this.getSelectedFeeds();
+
+			if (sel_rows.length > 0) {
+				if (confirm(__("Remove selected feeds?"))) {
+					notify_progress("Removing selected feeds...", true);
+
+					const query = { op: "pref-feeds", method: "remove",
+						ids: sel_rows.toString() };
+
+					xhrPost("backend.php", query, () => {
+                        notify('');
+                        dialog.hide();
+                        updateFeedList();
+                    });
 				}
-			},
-			href: query});
-
-		dialog.show();
-
-	} catch (e) {
-		exception_error("showInactiveFeeds", e);
-	}
-
-}
 
-function opmlRegenKey() {
-
-	try {
-		var ok = confirm(__("Replace current OPML publishing address with a new one?"));
-
-		if (ok) {
-
-			notify_progress("Trying to change address...", true);
-
-			var query = "?op=rpc&method=regenOPMLKey";
-
-			new Ajax.Request("backend.php", {
-				parameters: query,
-				onComplete: function(transport) {
-						var reply = JSON.parse(transport.responseText);
-
-						var new_link = reply.link;
-
-						var e = $('pub_opml_url');
-
-						if (new_link) {
-							e.href = new_link;
-							e.innerHTML = new_link;
-
-							new Effect.Highlight(e);
-
-							notify('');
-
-						} else {
-							notify_error("Could not change feed URL.");
-						}
-				} });
-		}
-	} catch (e) {
-		exception_error("opmlRegenKey", e);
-	}
-	return false;
-}
-
-function feedActionChange() {
-	try {
-		var chooser = $("feedActionChooser");
-		var opid = chooser[chooser.selectedIndex].value;
-
-		chooser.selectedIndex = 0;
-		feedActionGo(opid);
-	} catch (e) {
-		exception_error("feedActionChange", e);
-	}
-}
-
-function feedActionGo(op) {
-	try {
-		if (op == "facEdit") {
-
-			var rows = getSelectedFeeds();
-
-			if (rows.length > 1) {
-				editSelectedFeeds();
 			} else {
-				editSelectedFeed();
+				alert(__("No feeds are selected."));
 			}
-		}
-
-		if (op == "facClear") {
-			clearSelectedFeeds();
-		}
-
-		if (op == "facPurge") {
-			purgeSelectedFeeds();
-		}
-
-		if (op == "facEditCats") {
-			editFeedCats();
-		}
-
-		if (op == "facRescore") {
-			rescoreSelectedFeeds();
-		}
-
-		if (op == "facUnsubscribe") {
-			removeSelectedFeeds();
-		}
-
-	} catch (e) {
-		exception_error("feedActionGo", e);
-
-	}
-}
-
-function clearFeedArticles(feed_id) {
-
-	notify_progress("Clearing feed...");
-
-	var query = "?op=pref-feeds&quiet=1&method=clear&id=" + feed_id;
-
-	new Ajax.Request("backend.php",	{
-		parameters: query,
-		onComplete: function(transport) {
-				notify('');
-			} });
+		},
+		execute: function () {
+			if (this.validate()) {
+			}
+		},
+		href: query
+	});
 
-	return false;
+	dialog.show();
 }
 
-function rescoreSelectedFeeds() {
-
-	var sel_rows = getSelectedFeeds();
-
-	if (sel_rows.length > 0) {
+function opmlRegenKey() {
+	if (confirm(__("Replace current OPML publishing address with a new one?"))) {
+		notify_progress("Trying to change address...", true);
 
-		//var ok = confirm(__("Rescore last 100 articles in selected feeds?"));
-		var ok = confirm(__("Rescore articles in selected feeds?"));
+		xhrJson("backend.php", { op: "pref-feeds", method: "regenOPMLKey" }, (reply) => {
+            if (reply) {
+                const new_link = reply.link;
+                const e = $('pub_opml_url');
 
-		if (ok) {
-			notify_progress("Rescoring selected feeds...", true);
+                if (new_link) {
+                    e.href = new_link;
+                    e.innerHTML = new_link;
 
-			var query = "?op=pref-feeds&method=rescore&quiet=1&ids="+
-				param_escape(sel_rows.toString());
+                    new Effect.Highlight(e);
 
-			new Ajax.Request("backend.php",	{
-				parameters: query,
-				onComplete: function(transport) {
-						notify_callback2(transport);
-			} });
+                    notify('');
 
-		}
-	} else {
-		alert(__("No feeds are selected."));
+                } else {
+                    notify_error("Could not change feed URL.");
+                }
+            }
+        });
 	}
-
 	return false;
 }
 
-function rescore_all_feeds() {
-	var ok = confirm(__("Rescore all articles? This operation may take a lot of time."));
-
-	if (ok) {
-		notify_progress("Rescoring feeds...", true);
-
-		var query = "?op=pref-feeds&method=rescoreAll&quiet=1";
-
-		new Ajax.Request("backend.php",	{
-			parameters: query,
-			onComplete: function(transport) {
-					notify_callback2(transport);
-		} });
-	}
-}
-
 function labelColorReset() {
-	try {
-		var labels = getSelectedLabels();
-
-		if (labels.length > 0) {
-			var ok = confirm(__("Reset selected labels to default colors?"));
+	const labels = getSelectedLabels();
 
-			if (ok) {
-				var query = "?op=pref-labels&method=colorreset&ids="+
-					param_escape(labels.toString());
+	if (labels.length > 0) {
+		if (confirm(__("Reset selected labels to default colors?"))) {
 
-				new Ajax.Request("backend.php", {
-					parameters: query,
-					onComplete: function(transport) {
-						updateLabelList();
-					} });
-			}
+			const query = { op: "pref-labels", method: "colorreset",
+				ids: labels.toString() };
 
-		} else {
-			alert(__("No labels are selected."));
+			xhrPost("backend.php", query, () => {
+                updateLabelList();
+            });
 		}
 
-	} catch (e) {
-		exception_error("labelColorReset", e);
+	} else {
+		alert(__("No labels are selected."));
 	}
 }
 
-
 function inPreferences() {
 	return true;
 }
 
 function editProfiles() {
-	try {
-
-		if (dijit.byId("profileEditDlg"))
-			dijit.byId("profileEditDlg").destroyRecursive();
-
-		var query = "backend.php?op=dlg&method=editPrefProfiles";
-
-		dialog = new dijit.Dialog({
-			id: "profileEditDlg",
-			title: __("Settings Profiles"),
-			style: "width: 600px",
-			getSelectedProfiles: function() {
-				return getSelectedTableRowIds("prefFeedProfileList");
-			},
-			removeSelected: function() {
-				var sel_rows = this.getSelectedProfiles();
 
-				if (sel_rows.length > 0) {
-					var ok = confirm(__("Remove selected profiles? Active and default profiles will not be removed."));
+	if (dijit.byId("profileEditDlg"))
+		dijit.byId("profileEditDlg").destroyRecursive();
 
-					if (ok) {
-						notify_progress("Removing selected profiles...", true);
+	const query = "backend.php?op=pref-prefs&method=editPrefProfiles";
 
-						var query = "?op=rpc&method=remprofiles&ids="+
-							param_escape(sel_rows.toString());
+	const dialog = new dijit.Dialog({
+		id: "profileEditDlg",
+		title: __("Settings Profiles"),
+		style: "width: 600px",
+		getSelectedProfiles: function () {
+			return getSelectedTableRowIds("prefFeedProfileList");
+		},
+		removeSelected: function () {
+			const sel_rows = this.getSelectedProfiles();
 
-						new Ajax.Request("backend.php",	{
-							parameters: query,
-							onComplete: function(transport) {
-								notify('');
-								editProfiles();
-							} });
+			if (sel_rows.length > 0) {
+				if (confirm(__("Remove selected profiles? Active and default profiles will not be removed."))) {
+					notify_progress("Removing selected profiles...", true);
 
-					}
+					const query = { op: "rpc", method: "remprofiles",
+						ids: sel_rows.toString() };
 
-				} else {
-					alert(__("No profiles are selected."));
+					xhrPost("backend.php", query, () => {
+						notify('');
+						editProfiles();
+					});
 				}
-			},
-			activateProfile: function() {
-				var sel_rows = this.getSelectedProfiles();
-
-				if (sel_rows.length == 1) {
 
-					var ok = confirm(__("Activate selected profile?"));
-
-					if (ok) {
-						notify_progress("Loading, please wait...");
-
-						var query = "?op=rpc&method=setprofile&id="+
-							param_escape(sel_rows.toString());
+			} else {
+				alert(__("No profiles are selected."));
+			}
+		},
+		activateProfile: function () {
+			const sel_rows = this.getSelectedProfiles();
 
-						new Ajax.Request("backend.php",	{
-							parameters: query,
-							onComplete: function(transport) {
-								window.location.reload();
-							} });
-					}
+			if (sel_rows.length == 1) {
+				if (confirm(__("Activate selected profile?"))) {
+					notify_progress("Loading, please wait...");
 
-				} else {
-					alert(__("Please choose a profile to activate."));
+                    xhrPost("backend.php", { op: "rpc", method: "setprofile", id: sel_rows.toString() },  () => {
+                        window.location.reload();
+                    });
 				}
-			},
-			addProfile: function() {
-				if (this.validate()) {
-					notify_progress("Creating profile...", true);
 
-					var query = "?op=rpc&method=addprofile&title=" +
-						param_escape(dialog.attr('value').newprofile);
+			} else {
+				alert(__("Please choose a profile to activate."));
+			}
+		},
+		addProfile: function () {
+			if (this.validate()) {
+				notify_progress("Creating profile...", true);
 
-					new Ajax.Request("backend.php",	{
-						parameters: query,
-						onComplete: function(transport) {
-							notify('');
-							editProfiles();
-						} });
+				const query = { op: "rpc", method: "addprofile", title: dialog.attr('value').newprofile };
 
-				}
-			},
-			execute: function() {
-				if (this.validate()) {
-				}
-			},
-			href: query});
+				xhrPost("backend.php", query, () => {
+					notify('');
+					editProfiles();
+				});
 
-		dialog.show();
-	} catch (e) {
-		exception_error("editProfiles", e);
-	}
+			}
+		},
+		execute: function () {
+			if (this.validate()) {
+			}
+		},
+		href: query
+	});
+
+	dialog.show();
 }
 
+/*
 function activatePrefProfile() {
 
-	var sel_rows = getSelectedFeedCats();
+	const sel_rows = getSelectedFeedCats();
 
 	if (sel_rows.length == 1) {
 
-		var ok = confirm(__("Activate selected profile?"));
+		const ok = confirm(__("Activate selected profile?"));
 
 		if (ok) {
 			notify_progress("Loading, please wait...");
 
-			var query = "?op=rpc&method=setprofile&id="+
-				param_escape(sel_rows.toString());
-
-			new Ajax.Request("backend.php",	{
-				parameters: query,
-				onComplete: function(transport) {
-					window.location.reload();
-				} });
+			xhrPost("backend.php", { op: "rpc", method: "setprofile", id: sel_rows.toString() },  () => {
+				window.location.reload();
+			});
 		}
 
 	} else {
@@ -1512,315 +1009,209 @@ function activatePrefProfile() {
 	}
 
 	return false;
-}
+} */
 
 function clearFeedAccessKeys() {
 
-	var ok = confirm(__("This will invalidate all previously generated feed URLs. Continue?"));
-
-	if (ok) {
+	if (confirm(__("This will invalidate all previously generated feed URLs. Continue?"))) {
 		notify_progress("Clearing URLs...");
 
-		var query = "?op=rpc&method=clearKeys";
-
-		new Ajax.Request("backend.php", {
-			parameters: query,
-			onComplete: function(transport) {
-				notify_info("Generated URLs cleared.");
-			} });
-	}
-
-	return false;
-}
-
-function clearArticleAccessKeys() {
-
-	var ok = confirm(__("This will invalidate all previously shared article URLs. Continue?"));
-
-	if (ok) {
-		notify_progress("Clearing URLs...");
-
-		var query = "?op=rpc&method=clearArticleKeys";
-
-		new Ajax.Request("backend.php", {
-			parameters: query,
-			onComplete: function(transport) {
-				notify_info("Shared URLs cleared.");
-			} });
+		xhrPost("backend.php", { op: "pref-feeds", method: "clearKeys" }, () => {
+            notify_info("Generated URLs cleared.");
+        });
 	}
 
 	return false;
 }
 
 function resetFilterOrder() {
-	try {
-		notify_progress("Loading, please wait...");
-
-		new Ajax.Request("backend.php", {
-			parameters: "?op=pref-filters&method=filtersortreset",
-			onComplete: function(transport) {
-		  		updateFilterList();
-			} });
+	notify_progress("Loading, please wait...");
 
-
-	} catch (e) {
-		exception_error("resetFilterOrder");
-	}
+    xhrPost("backend.php", { op: "pref-filters", method: "filtersortreset" }, () => {
+        updateFilterList();
+    });
 }
 
 
 function resetFeedOrder() {
-	try {
-		notify_progress("Loading, please wait...");
-
-		new Ajax.Request("backend.php", {
-			parameters: "?op=pref-feeds&method=feedsortreset",
-			onComplete: function(transport) {
-		  		updateFeedList();
-			} });
+	notify_progress("Loading, please wait...");
 
-
-	} catch (e) {
-		exception_error("resetFeedOrder");
-	}
+    xhrPost("backend.php", { op: "pref-feeds", method: "feedsortreset" }, () => {
+        updateFeedList();
+    });
 }
 
 function resetCatOrder() {
-	try {
-		notify_progress("Loading, please wait...");
+	notify_progress("Loading, please wait...");
 
-		new Ajax.Request("backend.php", {
-			parameters: "?op=pref-feeds&method=catsortreset",
-			onComplete: function(transport) {
-		  		updateFeedList();
-			} });
+	xhrPost("backend.php", { op: "pref-feeds", method: "catsortreset" }, () => {
+		updateFeedList();
+	});
+}
 
+function editCat(id, item) {
+	const new_name = prompt(__('Rename category to:'), item.name);
 
-	} catch (e) {
-		exception_error("resetCatOrder");
-	}
-}
+	if (new_name && new_name != item.name) {
 
-function toggleHiddenFeedCats() {
-	try {
 		notify_progress("Loading, please wait...");
 
-		new Ajax.Request("backend.php", {
-			parameters: "?op=pref-feeds&method=togglehiddenfeedcats",
-			onComplete: function(transport) {
-		  		updateFeedList();
-			} });
-
-	} catch (e) {
-		exception_error("toggleHiddenFeedCats");
+		xhrPost("backend.php", { op: 'pref-feeds', method: 'renamecat', id: id, title: new_name }, () => {
+			updateFeedList();
+		});
 	}
 }
 
-function editCat(id, item, event) {
-	try {
-		var new_name = prompt(__('Rename category to:'), item.name);
-
-		if (new_name && new_name != item.name) {
-
-			notify_progress("Loading, please wait...");
-
-			new Ajax.Request("backend.php", {
-			parameters: {
-				op: 'pref-feeds',
-				method: 'renamecat',
-				id: id,
-				title: new_name,
-			},
-			onComplete: function(transport) {
-		  		updateFeedList();
-			} });
-		}
+function editLabel(id) {
+	const query = "backend.php?op=pref-labels&method=edit&id=" +
+		param_escape(id);
 
-	} catch (e) {
-		exception_error("editCat", e);
-	}
-}
+	if (dijit.byId("labelEditDlg"))
+		dijit.byId("labelEditDlg").destroyRecursive();
 
-function editLabel(id, event) {
-	try {
-		var query = "backend.php?op=pref-labels&method=edit&id=" +
-			param_escape(id);
+	const dialog = new dijit.Dialog({
+		id: "labelEditDlg",
+		title: __("Label Editor"),
+		style: "width: 600px",
+		setLabelColor: function (id, fg, bg) {
 
-		if (dijit.byId("labelEditDlg"))
-			dijit.byId("labelEditDlg").destroyRecursive();
+			let kind = '';
+			let color = '';
 
-		dialog = new dijit.Dialog({
-			id: "labelEditDlg",
-			title: __("Label Editor"),
-			style: "width: 600px",
-			setLabelColor: function(id, fg, bg) {
-
-				var kind = '';
-				var color = '';
-
-				if (fg && bg) {
-					kind = 'both';
-				} else if (fg) {
-					kind = 'fg';
-					color = fg;
-				} else if (bg) {
-					kind = 'bg';
-					color = bg;
-				}
+			if (fg && bg) {
+				kind = 'both';
+			} else if (fg) {
+				kind = 'fg';
+				color = fg;
+			} else if (bg) {
+				kind = 'bg';
+				color = bg;
+			}
 
-				var query = "?op=pref-labels&method=colorset&kind="+kind+
-					"&ids=" + param_escape(id) + "&fg=" + param_escape(fg) +
-					"&bg=" + param_escape(bg) + "&color=" + param_escape(color);
+			const e = $("LICID-" + id);
 
-		//		console.log(query);
+			if (e) {
+				if (fg) e.style.color = fg;
+				if (bg) e.style.backgroundColor = bg;
+			}
 
-				var e = $("LICID-" + id);
+            const query = { op: "pref-labels", method: "colorset", kind: kind,
+                ids: id, fg: fg, bg: bg, color: color };
 
-				if (e) {
-					if (fg) e.style.color = fg;
-					if (bg) e.style.backgroundColor = bg;
-				}
+            xhrPost("backend.php", query, () => {
+                updateFilterList(); // maybe there's labels in there
+			});
 
-				new Ajax.Request("backend.php", { parameters: query });
+		},
+		execute: function () {
+			if (this.validate()) {
+				const caption = this.attr('value').caption;
+				const fg_color = this.attr('value').fg_color;
+				const bg_color = this.attr('value').bg_color;
 
-				updateFilterList();
-			},
-			execute: function() {
-				if (this.validate()) {
-					var caption = this.attr('value').caption;
-					var fg_color = this.attr('value').fg_color;
-					var bg_color = this.attr('value').bg_color;
-					var query = dojo.objectToQuery(this.attr('value'));
-
-					dijit.byId('labelTree').setNameById(id, caption);
-					this.setLabelColor(id, fg_color, bg_color);
-					this.hide();
-
-					new Ajax.Request("backend.php", {
-						parameters: query,
-						onComplete: function(transport) {
-					  		updateFilterList();
-					} });
-				}
-			},
-			href: query});
+				dijit.byId('labelTree').setNameById(id, caption);
+				this.setLabelColor(id, fg_color, bg_color);
+				this.hide();
 
-		dialog.show();
+				xhrPost("backend.php", this.attr('value'), () => {
+                    updateFilterList(); // maybe there's labels in there
+				});
+			}
+		},
+		href: query
+	});
 
-	} catch (e) {
-		exception_error("editLabel", e);
-	}
+	dialog.show();
 }
 
 
 function customizeCSS() {
-	try {
-		var query = "backend.php?op=dlg&method=customizeCSS";
+	const query = "backend.php?op=pref-prefs&method=customizeCSS";
 
-		if (dijit.byId("cssEditDlg"))
-			dijit.byId("cssEditDlg").destroyRecursive();
+	if (dijit.byId("cssEditDlg"))
+		dijit.byId("cssEditDlg").destroyRecursive();
 
-		dialog = new dijit.Dialog({
-			id: "cssEditDlg",
-			title: __("Customize stylesheet"),
-			style: "width: 600px",
-			execute: function() {
-				notify_progress('Saving data...', true);
-				new Ajax.Request("backend.php", {
-					parameters: dojo.objectToQuery(this.attr('value')),
-					onComplete: function(transport) {
-						notify('');
-						window.location.reload();
-				} });
+	const dialog = new dijit.Dialog({
+		id: "cssEditDlg",
+		title: __("Customize stylesheet"),
+		style: "width: 600px",
+		execute: function () {
+			notify_progress('Saving data...', true);
 
-			},
-			href: query});
+			xhrPost("backend.php", this.attr('value'), () => {
+				window.location.reload();
+			});
 
-		dialog.show();
+		},
+		href: query
+	});
 
-	} catch (e) {
-		exception_error("customizeCSS", e);
-	}
+	dialog.show();
 }
 
 function insertSSLserial(value) {
-	try {
-		dijit.byId("SSL_CERT_SERIAL").attr('value', value);
-	} catch (e) {
-		exception_error("insertSSLcerial", e);
-	}
+	dijit.byId("SSL_CERT_SERIAL").attr('value', value);
 }
 
 function gotoExportOpml(filename, settings) {
-	tmp = settings ? 1 : 0;
+	const tmp = settings ? 1 : 0;
 	document.location.href = "backend.php?op=opml&method=export&filename=" + filename + "&settings=" + tmp;
 }
 
 
 function batchSubscribe() {
-	try {
-		var query = "backend.php?op=dlg&method=batchSubscribe";
+	const query = "backend.php?op=pref-feeds&method=batchSubscribe";
+
+	// overlapping widgets
+	if (dijit.byId("batchSubDlg")) dijit.byId("batchSubDlg").destroyRecursive();
+	if (dijit.byId("feedAddDlg"))    dijit.byId("feedAddDlg").destroyRecursive();
+
+	const dialog = new dijit.Dialog({
+		id: "batchSubDlg",
+		title: __("Batch subscribe"),
+		style: "width: 600px",
+		execute: function () {
+			if (this.validate()) {
+				notify_progress(__("Subscribing to feeds..."), true);
+
+				xhrPost("backend.php", this.attr('value'), () => {
+					notify("");
+					updateFeedList();
+					dialog.hide();
+				});
+			}
+		},
+		href: query
+	});
 
-		// overlapping widgets
-		if (dijit.byId("batchSubDlg")) dijit.byId("batchSubDlg").destroyRecursive();
-		if (dijit.byId("feedAddDlg"))	dijit.byId("feedAddDlg").destroyRecursive();
+	dialog.show();
+}
 
-		var dialog = new dijit.Dialog({
-			id: "batchSubDlg",
-			title: __("Batch subscribe"),
-			style: "width: 600px",
-			execute: function() {
-				if (this.validate()) {
-					console.log(dojo.objectToQuery(this.attr('value')));
-
-					notify_progress(__("Subscribing to feeds..."), true);
-
-					new Ajax.Request("backend.php", {
-						parameters: dojo.objectToQuery(this.attr('value')),
-						onComplete: function(transport) {
-							notify("");
-							updateFeedList();
-							dialog.hide();
-						} });
-					}
-			},
-			href: query});
+function clearPluginData(name) {
+	if (confirm(__("Clear stored data for this plugin?"))) {
+		notify_progress("Loading, please wait...");
 
-		dialog.show();
-	} catch (e) {
-		exception_error("batchSubscribe", e);
+		xhrPost("backend.php", { op: "pref-prefs", method: "clearplugindata", name: name }, () => {
+			notify('');
+			updatePrefsList();
+		});
 	}
 }
 
+function clearSqlLog() {
+
+	if (confirm(__("Clear all messages in the error log?"))) {
 
-function toggleAdvancedPrefs() {
-	try {
 		notify_progress("Loading, please wait...");
 
-		new Ajax.Request("backend.php", {
-			parameters: "?op=pref-prefs&method=toggleadvanced",
-			onComplete: function(transport) {
-				updatePrefsList();
-			} });
+		xhrPost("backend.php",	{ op: "pref-system", method: "clearLog" }, () => {
+			updateSystemList();
+		});
 
-	} catch (e) {
-		exception_error("toggleAdvancedPrefs", e);
 	}
 }
 
-function clearPluginData(name) {
-	try {
-		if (confirm(__("Clear stored data for this plugin?"))) {
-			notify_progress("Loading, please wait...");
-
-			new Ajax.Request("backend.php", {
-				parameters: "?op=pref-prefs&method=clearplugindata&name=" + param_escape(name),
-				onComplete: function(transport) {
-					notify('');
-					updatePrefsList();
-				} });
-		}
-	} catch (e) {
-		exception_error("clearPluginData", e);
-	}
+function updateSelectedPrompt() {
+	// no-op shim for toggleSelectedRow()
 }
+