]> git.wh0rd.org - tt-rss.git/blobdiff - functions.js
tag editor: autocomplete
[tt-rss.git] / functions.js
index 2f7774b902e68a919dc6846dbbd7c626ee3a5ddc..c6ef5fba99f9829c3a2d90fd2e43a6645f9e5317 100644 (file)
@@ -1,16 +1,36 @@
 var hotkeys_enabled = true;
-
+var debug_mode_enabled = false;
 var xmlhttp_rpc = Ajax.getTransport();
 
+/* add method to remove element from array */
+
+Array.prototype.remove = function(s) {
+       for (var i=0; i < this.length; i++) {
+               if (s == this[i]) this.splice(i, 1);
+       }
+}
+
 function browser_has_opacity() {
        return navigator.userAgent.match("Gecko") != null || 
                navigator.userAgent.match("Opera") != null;
 }
 
+function is_msie() {
+       return navigator.userAgent.match("MSIE");
+}
+
 function is_opera() {
        return navigator.userAgent.match("Opera");
 }
 
+function is_khtml() {
+       return navigator.userAgent.match("KHTML");
+}
+
+function is_safari() {
+       return navigator.userAgent.match("Safari");
+}
+
 function exception_error(location, e, silent) {
        var msg;
 
@@ -44,6 +64,45 @@ function xmlhttp_ready(obj) {
        return obj.readyState == 4 || obj.readyState == 0 || !obj.readyState;
 }
 
+function open_article_callback() {
+       if (xmlhttp_rpc.readyState == 4) {
+               try {
+
+                       if (xmlhttp_rpc.responseXML) {
+                               var link = xmlhttp_rpc.responseXML.getElementsByTagName("link")[0];
+                               var id = xmlhttp_rpc.responseXML.getElementsByTagName("id")[0];
+
+                               if (link) {
+                                       window.open(link.firstChild.nodeValue, "_blank");
+
+                                       if (id) {
+                                               id = id.firstChild.nodeValue;
+                                               if (!document.getElementById("headlinesList")) {
+                                                       window.setTimeout("toggleUnread(" + id + ", 0)", 100);
+                                               }
+                                       }
+                               }
+                       }
+
+               } catch (e) {
+                       exception_error("open_article_callback", e);
+               }
+       }
+}
+
+function logout_callback() {
+       var container = document.getElementById('notify');
+       if (xmlhttp.readyState == 4) {
+               try {
+                       var date = new Date();
+                       var timestamp = Math.round(date.getTime() / 1000);
+                       window.location.href = "tt-rss.php";
+               } catch (e) {
+                       exception_error("logout_callback", e);
+               }
+       }
+}
+
 function notify_callback() {
        var container = document.getElementById('notify');
        if (xmlhttp.readyState == 4) {
@@ -82,32 +141,18 @@ function delay(gap) {
 }
 
 var notify_hide_timerid = false;
-var notify_last_doc = false;
-
-var notify_effect = false;
 
 function hide_notify() {
-       if (notify_last_doc) {
-               var n = notify_last_doc.getElementById("notify");               
-               if (browser_has_opacity()) {
-                       if (notify_opacity >= 0) {
-                               notify_opacity = notify_opacity - 0.1;
-                               n.style.opacity = notify_opacity;
-                               notify_hide_timerid = window.setTimeout("hide_notify()", 20);   
-                       } else {
-                               n.style.display = "none";
-                               n.style.opacity = 1;
-                       }
-               } else {
-                       n.style.display = "none";
-               }
+       var n = document.getElementById("notify");
+       if (n) {
+               n.style.display = "none";
        }
-}
+} 
 
-function notify_real(msg, doc, no_hide, is_err) {
+function notify_real(msg, no_hide, n_type) {
 
-       var n = doc.getElementById("notify");
-       var nb = doc.getElementById("notify_body");
+       var n = document.getElementById("notify");
+       var nb = document.getElementById("notify_body");
 
        if (!n || !nb) return;
 
@@ -115,9 +160,6 @@ function notify_real(msg, doc, no_hide, is_err) {
                window.clearTimeout(notify_hide_timerid);
        }
 
-       notify_last_doc = doc;
-       notify_opacity = 1;
-
        if (msg == "") {
                if (n.style.display == "block") {
                        notify_hide_timerid = window.setTimeout("hide_notify()", 0);
@@ -127,16 +169,34 @@ function notify_real(msg, doc, no_hide, is_err) {
                n.style.display = "block";
        }
 
-       if (is_err) {
-               n.style.backgroundColor = "#ffcccc";
-               n.style.color = "black";
-               n.style.borderColor = "#ff0000";
-       } else {
-               n.style.backgroundColor = "#fff7d5";
-               n.style.borderColor = "#d7c47a";
-               n.style.color = "black";
+       /* types:
+
+               1 - generic
+               2 - progress
+               3 - error
+               4 - info
+
+       */
+
+       if (typeof __ != 'undefined') {
+               msg = __(msg);
+       }
+
+       if (n_type == 1) {
+               n.className = "notify";
+       } else if (n_type == 2) {
+               n.className = "notifyProgress";
+               msg = "<img src='images/indicator_white.gif'> " + msg;
+       } else if (n_type == 3) {
+               n.className = "notifyError";
+               msg = "<img src='images/sign_excl.png'> " + msg;
+       } else if (n_type == 4) {
+               n.className = "notifyInfo";
+               msg = "<img src='images/sign_info.png'> " + msg;
        }
 
+//     msg = "<img src='images/live_com_loading.gif'> " + msg;
+
        nb.innerHTML = msg;
 
        if (!no_hide) {
@@ -144,22 +204,39 @@ function notify_real(msg, doc, no_hide, is_err) {
        }
 }
 
-function p_notify(msg, no_hide, is_err) {
-       notify_real(msg, document, no_hide, is_err);
+function notify(msg, no_hide) {
+       notify_real(msg, no_hide, 1);
+}
+
+function notify_progress(msg, no_hide) {
+       notify_real(msg, no_hide, 2);
 }
 
-function notify(msg, no_hide, is_err) {
-       notify_real(msg, document, no_hide, is_err);
+function notify_error(msg, no_hide) {
+       notify_real(msg, no_hide, 3);
+
+}
+
+function notify_info(msg, no_hide) {
+       notify_real(msg, no_hide, 4);
 }
 
 function printLockingError() {
-       notify("Please wait until operation finishes");}
+       notify_info("Please wait until operation finishes.");
+}
 
 function hotkey_handler(e) {
 
        try {
 
                var keycode;
+               var shift_key = false;
+
+               try {
+                       shift_key = e.shiftKey;
+               } catch (e) {
+
+               }
        
                if (!hotkeys_enabled) return;
        
@@ -169,30 +246,25 @@ function hotkey_handler(e) {
                        keycode = e.which;
                }
 
-               var m_ctx = getMainContext();
-               var f_ctx = getFeedsContext();
-               var h_ctx = getHeadlinesContext();
-
                if (keycode == 82) { // r
-                       return m_ctx.scheduleFeedUpdate(true);
+                       return scheduleFeedUpdate(true);
                }
 
-               if (keycode == 83) { // r
-                       return m_ctx.displayDlg("search", getActiveFeedId());
+               if (keycode == 83) { // s
+                       return displayDlg("search", getActiveFeedId());
                }
 
                if (keycode == 85) { // u
                        if (getActiveFeedId()) {
-                               return f_ctx.viewfeed(getActiveFeedId(), "ForceUpdate");
+                               return viewfeed(getActiveFeedId(), "ForceUpdate");
                        }
                }
        
                if (keycode == 65) { // a
-                       return m_ctx.toggleDispRead();
+                       return toggleDispRead();
                }
        
-               var f_doc = document;
-               var feedlist = f_doc.getElementById('feedList');
+               var feedlist = document.getElementById('feedList');
        
                if (keycode == 74) { // j
                        var feed = getActiveFeedId();
@@ -207,24 +279,94 @@ function hotkey_handler(e) {
                }
 
                if (keycode == 78 || keycode == 40) { // n, down
-                       if (typeof h_ctx.moveToPost != 'undefined') {
-                               return h_ctx.moveToPost('next');
+                       if (typeof moveToPost != 'undefined') {
+                               return moveToPost('next');
                        }
                }
        
                if (keycode == 80 || keycode == 38) { // p, up
-                       if (typeof h_ctx.moveToPost != 'undefined') {
-                               return h_ctx.moveToPost('prev');
+                       if (typeof moveToPost != 'undefined') {
+                               return moveToPost('prev');
+                       }
+               }
+               
+               if (keycode == 68 && shift_key) { // d
+                       if (!debug_mode_enabled) {
+                               document.getElementById('debug_output').style.display = 'block';
+                               debug('debug mode activated');
+                       } else {
+                               document.getElementById('debug_output').style.display = 'none';
                        }
+
+                       debug_mode_enabled = !debug_mode_enabled;
+               }
+
+               if (keycode == 190 && shift_key) { // >
+                       viewFeedGoPage(1);
                }
                
+               if (keycode == 188 && shift_key) { // <
+                       viewFeedGoPage(-1);
+               }
+
+               if (keycode == 191 && shift_key) { // ?
+                       viewFeedGoPage(0);
+               }
+
+               if (keycode == 69 && shift_key) { // e
+                       return editFeedDlg(getActiveFeedId());
+               }
+
+               if (keycode == 70 && shift_key) { // f
+                       if (getActiveFeedId()) {
+                               return catchupCurrentFeed();
+                       }
+               }
+
+               if (keycode == 80 && shift_key) { // p 
+                       if (getActiveFeedId()) {
+                               return catchupPage();
+                       }
+               }
+
+               if (keycode == 86) { // v
+                       if (getActiveArticleId()) {
+                               openArticleInNewWindow(getActiveArticleId());
+                       }
+               }
+
+               if (keycode == 84) { // t
+
+                       var id = getActiveArticleId();
+
+                       if (id) {                               
+
+                               var cb = document.getElementById("RCHK-" + id);
+
+                               if (cb) {
+                                       cb.checked = !cb.checked;
+                                       toggleSelectRowById(cb, "RROW-" + id);
+                               }
+                       }
+               }
+
+               if (keycode == 67) { // c
+                       var id = getActiveArticleId();
+
+                       if (id) {                               
+                               toggleUnread(id, 0);
+                       }
+               }
+
                if (typeof localHotkeyHandler != 'undefined') {
                        try {
-                               localHotkeyHandler(keycode);
+                               return localHotkeyHandler(e);
                        } catch (e) {
                                exception_error("hotkey_handler, local:", e);
                        }
                }
+
+               debug("KP=" + keycode);
        } catch (e) {
                exception_error("hotkey_handler", e);
        }
@@ -353,8 +495,10 @@ function setCookie(name, value, lifetime, path, domain, secure) {
        
        if (lifetime) {
                d = new Date();
-               d.setTime(lifetime * 1000);
+               d.setTime(d.getTime() + (lifetime * 1000));
        }
+
+       debug("setCookie: " + name + " => " + value + ": " + d);
        
        int_setCookie(name, value, d, path, domain, secure);
 
@@ -445,22 +589,22 @@ function gotoExportOpml() {
 function getActiveFeedId() {
 //     return getCookie("ttrss_vf_actfeed");
        try {
-               debug("gAFID: " + getMainContext().active_feed_id);
-               return getMainContext().active_feed_id;
+               debug("gAFID: " + active_feed_id);
+               return active_feed_id;
        } catch (e) {
                exception_error("getActiveFeedId", e);
        }
 }
 
 function activeFeedIsCat() {
-       return getMainContext().active_feed_is_cat;
+       return active_feed_is_cat;
 }
 
 function setActiveFeedId(id) {
 //     return setCookie("ttrss_vf_actfeed", id);
        try {
                debug("sAFID(" + id + ")");
-               getMainContext().active_feed_id = id;
+               active_feed_id = id;
        } catch (e) {
                exception_error("setActiveFeedId", e);
        }
@@ -468,8 +612,6 @@ function setActiveFeedId(id) {
 
 function parse_counters(reply, scheduled_call) {
        try {
-               var f_document = document;
-               var title_obj = this.window;
 
                var feeds_found = 0;
 
@@ -478,8 +620,6 @@ function parse_counters(reply, scheduled_call) {
                        reply = reply.firstChild;
                }
 
-               debug("F_DOC: " + f_document + ", T_OBJ: " + title_obj);
-
                for (var l = 0; l < reply.childNodes.length; l++) {
                        if (!reply.childNodes[l] ||
                                typeof(reply.childNodes[l].getAttribute) == "undefined") {
@@ -495,8 +635,8 @@ function parse_counters(reply, scheduled_call) {
                        var updated = reply.childNodes[l].getAttribute("updated");
        
                        if (id == "global-unread") {
-                               title_obj.global_unread = ctr;
-                               title_obj.updateTitle();
+                               global_unread = ctr;
+                               updateTitle();
                                continue;
                        }
 
@@ -506,19 +646,24 @@ function parse_counters(reply, scheduled_call) {
                        }
        
                        if (t == "category") {
-                               var catctr = f_document.getElementById("FCATCTR-" + id);
+                               var catctr = document.getElementById("FCATCTR-" + id);
                                if (catctr) {
-                                       catctr.innerHTML = "(" + ctr + " unread)";
+                                       catctr.innerHTML = "(" + ctr + ")";
+                                       if (ctr > 0) {
+                                               catctr.className = "catCtrHasUnread";
+                                       } else {
+                                               catctr.className = "catCtrNoUnread";
+                                       }
                                }
                                continue;
                        }
                
-                       var feedctr = f_document.getElementById("FEEDCTR-" + id);
-                       var feedu = f_document.getElementById("FEEDU-" + id);
-                       var feedr = f_document.getElementById("FEEDR-" + id);
-                       var feed_img = f_document.getElementById("FIMG-" + id);
-                       var feedlink = f_document.getElementById("FEEDL-" + id);
-                       var feedupd = f_document.getElementById("FLUPD-" + id);
+                       var feedctr = document.getElementById("FEEDCTR-" + id);
+                       var feedu = document.getElementById("FEEDU-" + id);
+                       var feedr = document.getElementById("FEEDR-" + id);
+                       var feed_img = document.getElementById("FIMG-" + id);
+                       var feedlink = document.getElementById("FEEDL-" + id);
+                       var feedupd = document.getElementById("FLUPD-" + id);
 
                        if (updated && feedlink) {
                                if (error) {
@@ -572,15 +717,14 @@ function parse_counters(reply, scheduled_call) {
                        }
                }
 
-               hideOrShowFeeds(getFeedsContext().document, 
-                       getInitParam("hide_read_feeds") == 1);
+               hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
 
-               var feeds_stored = getMainContext().number_of_feeds;
+               var feeds_stored = number_of_feeds;
 
                debug("Feed counters, C: " + feeds_found + ", S:" + feeds_stored);
 
                if (feeds_stored != feeds_found) {
-                       getMainContext().number_of_feeds = feeds_found;
+                       number_of_feeds = feeds_found;
 
                        if (feeds_stored != 0) {
                                debug("Subscribed feed number changed, refreshing feedlist");
@@ -593,10 +737,59 @@ function parse_counters(reply, scheduled_call) {
        }
 }
 
+function parse_counters_reply(xmlhttp, scheduled_call) {
+
+       if (!xmlhttp.responseXML) {
+               notify_error("Backend did not return valid XML", true);
+               return;
+       }
+
+       var reply = xmlhttp.responseXML.firstChild;
+       
+       if (!reply) {
+               notify_error("Backend did not return expected XML object", true);
+               updateTitle("");
+               return;
+       } 
+       
+       var error_code = false;
+       var error_msg = false;
+
+       if (reply.firstChild) {
+               error_code = reply.firstChild.getAttribute("error-code");
+               error_msg = reply.firstChild.getAttribute("error-msg");
+       }
+
+       if (!error_code) {      
+               error_code = reply.getAttribute("error-code");
+               error_msg = reply.getAttribute("error-msg");
+       }
+       
+       if (error_code && error_code != 0) {
+               debug("refetch_callback: got error code " + error_code);
+               return fatalError(error_code, error_msg);
+       }
+
+       var counters = reply.firstChild;
+       
+       parse_counters(counters, scheduled_call);
+
+       var runtime_info = counters.nextSibling;
+
+       parse_runtime_info(runtime_info);
+
+       if (getInitParam("feeds_sort_by_unread") == 1) {
+                       resort_feedlist();              
+       }       
+
+       hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
+
+}
+
 function all_counters_callback() {
        if (xmlhttp_rpc.readyState == 4) {
                try {
-                       if (!xmlhttp_rpc.responseXML || !xmlhttp_rpc.responseXML.firstChild) {
+/*                     if (!xmlhttp_rpc.responseXML || !xmlhttp_rpc.responseXML.firstChild) {
                                debug("[all_counters_callback] backend did not return valid XML");
                                return;
                        }
@@ -612,14 +805,18 @@ function all_counters_callback() {
                        var runtime = counters.nextSibling;
 
                        if (runtime) {
-                               getMainContext().parse_runtime_info(runtime);
+                               parse_runtime_info(runtime);
                        }
 
                        if (getInitParam("feeds_sort_by_unread") == 1) {
                                resort_feedlist();              
                        }       
 
-                       hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
+                       hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1); */
+                       
+                       debug("in all_counters_callback");
+
+                       parse_counters_reply(xmlhttp_rpc);
 
                } catch (e) {
                        exception_error("all_counters_callback", e);
@@ -675,7 +872,7 @@ function resort_category(doc, node) {
 function resort_feedlist() {
        debug("resort_feedlist");
 
-       var fd = getFeedsContext().document;
+       var fd = document;
 
        if (fd.getElementById("feedCatHolder")) {
 
@@ -704,6 +901,18 @@ function update_all_counters(feed) {
                        query = query + "&aid=" + feed;
                }
 
+               if (tagsAreDisplayed()) {
+                       query = query + "&omode=lt";
+               } else {
+                       query = query + "&omode=flc";
+               }
+
+               debug("update_all_counters QUERY: " + query);
+
+               var date = new Date();
+               var timestamp = Math.round(date.getTime() / 1000);
+               query = query + "&ts=" + timestamp
+
                xmlhttp_rpc.open("GET", query, true);
                xmlhttp_rpc.onreadystatechange=all_counters_callback;
                xmlhttp_rpc.send(null);
@@ -754,7 +963,7 @@ function hideOrShowFeeds(doc, hide) {
 
        debug("hideOrShowFeeds: " + doc + ", " + hide);
 
-       var fd = getFeedsContext().document;
+       var fd = document;
 
        var list = fd.getElementById("feedList");
 
@@ -783,13 +992,19 @@ function hideOrShowFeedsCategory(doc, node, hide, cat_node) {
 
        var cat_unread = 0;
 
+       if (!node) {
+               debug("hideOrShowFeeds: passed node is null, aborting");
+               return;
+       }
+
        if (node.hasChildNodes() && node.firstChild.nextSibling != false) {  
                for (i = 0; i < node.childNodes.length; i++) {
                        if (node.childNodes[i].nodeName != "LI") { continue; }
 
                        if (node.childNodes[i].style != undefined) {
 
-                               var has_unread = (node.childNodes[i].className != "feed");
+                               var has_unread = (node.childNodes[i].className != "feed" &&
+                                       node.childNodes[i].className != "tag");
        
        //                      debug(node.childNodes[i].id + " --> " + has_unread);
        
@@ -958,6 +1173,9 @@ function toggleSelectListRow(sender) {
        }
 }
 
+function tSR(sender) {
+       return toggleSelectRow(sender);
+}
 
 function toggleSelectRow(sender) {
        var parent_row = sender.parentNode.parentNode;
@@ -984,7 +1202,7 @@ function getRelativeFeedId(list, id, direction, unread_only) {
                                var child = list.childNodes[i];
                                if (child.id && child.id == "feedCatHolder") {
                                        if (child.lastChild) {
-                                               var cr = getRelativeFeedId(child.firstChild, id, direction);
+                                               var cr = getRelativeFeedId(child.firstChild, id, direction, unread_only);
                                                if (cr) return cr;                                      
                                        }
                                } else if (child.id && child.id.match("FEEDR-")) {
@@ -998,7 +1216,7 @@ function getRelativeFeedId(list, id, direction, unread_only) {
                if (direction == "prev") {
                        for (i = list.childNodes.length-1; i >= 0; i--) {
                                var child = list.childNodes[i];                         
-                               if (child.id == "feedCatHolder") {
+                               if (child.id == "feedCatHolder" && child.className != "invisible") {
                                        if (child.firstChild) {
                                                var cr = getRelativeFeedId(child.firstChild, id, direction);
                                                if (cr) return cr;                                      
@@ -1007,7 +1225,7 @@ function getRelativeFeedId(list, id, direction, unread_only) {
                                
                                        if (getInitParam("hide_read_feeds") == 1) {
                                                if (child.className != "feed") {
-                                                       alert(child.className);
+//                                                     alert(child.className);
                                                        return child.id.replace('FEEDR-', '');                                          
                                                }                                                       
                                        } else {
@@ -1018,7 +1236,7 @@ function getRelativeFeedId(list, id, direction, unread_only) {
                }
        } else {
        
-               var feed = list.ownerDocument.getElementById("FEEDR-" + getActiveFeedId());
+               var feed = list.ownerDocument.getElementById("FEEDR-" + id);
                
                if (getInitParam("hide_read_feeds") == 1) {
                        unread_only = true;
@@ -1054,9 +1272,12 @@ function getRelativeFeedId(list, id, direction, unread_only) {
                           }
 
                                if (e) {
-                                       if (!unread_only || (unread_only && e.className != "feed" && 
-                                                       e.className != "error"))        {
-                                               return e.id.replace("FEEDR-", "");
+                                       if (!unread_only || (unread_only && e.className != "feed" &&
+                                                       e.className.match("feed")))     {
+                                               if (e.parentNode.parentNode && e.parentNode.parentNode.className 
+                                                       != "invisible") {
+                                                       return e.id.replace("FEEDR-", "");
+                                               }
                                        }
                                }
                        }
@@ -1092,8 +1313,11 @@ function getRelativeFeedId(list, id, direction, unread_only) {
 
                                if (e) {
                                        if (!unread_only || (unread_only && e.className != "feed" && 
-                                                       e.className != "error"))        {
-                                               return e.id.replace("FEEDR-", "");
+                                                       e.className.match("feed")))     {
+                                               if (e.parentNode.parentNode && e.parentNode.parentNode.className 
+                                                       != "invisible") {
+                                                       return e.id.replace("FEEDR-", "");
+                                               }
                                        }
                                }
                        }
@@ -1101,11 +1325,18 @@ function getRelativeFeedId(list, id, direction, unread_only) {
        }
 }
 
-function showBlockElement(id) {
+function showBlockElement(id, h_id) {
        var elem = document.getElementById(id);
 
        if (elem) {
                elem.style.display = "block";
+
+               if (h_id) {
+                       elem = document.getElementById(h_id);
+                       if (elem) {
+                               elem.style.display = "none";
+                       }
+               }
        } else {
                alert("[showBlockElement] can't find element with id " + id);
        } 
@@ -1155,6 +1386,14 @@ function leading_zero(p) {
 }
 
 function closeInfoBox(cleanup) {
+
+       if (!is_msie() && !getInitParam("infobox_disable_overlay")) {
+               var overlay = document.getElementById("dialog_overlay");
+               if (overlay) {
+                       overlay.style.display = "none";
+               }
+       }
+
        var box = document.getElementById('infoBox');
        var shadow = document.getElementById('infoBoxShadow');
 
@@ -1179,7 +1418,7 @@ function displayDlg(id, param) {
                return
        }
 
-       notify("");
+       notify_progress("Loading, please wait...", true);
 
        xmlhttp.open("GET", "backend.php?op=dlg&id=" +
                param_escape(id) + "&param=" + param_escape(param), true);
@@ -1195,20 +1434,62 @@ function infobox_submit_callback() {
        if (xmlhttp.readyState == 4) {
                closeInfoBox();
 
-               // called from prefs, reload tab
-               if (active_tab) {
-                       selectTab(active_tab, false);
-               }
+               try {
+                       // called from prefs, reload tab
+                       if (active_tab) {
+                               selectTab(active_tab, false);
+                       }
+               } catch (e) { }
 
-               notify(xmlhttp.responseText);
+               if (xmlhttp.responseText) {
+                       notify_info(xmlhttp.responseText);
+               }
 
        } 
 }
 
 function infobox_callback() {
        if (xmlhttp.readyState == 4) {
-               var box = document.getElementById('infoBox');
-               var shadow = document.getElementById('infoBoxShadow');
+
+               try {
+
+                       if (!is_msie() && !getInitParam("infobox_disable_overlay")) {
+                               var overlay = document.getElementById("dialog_overlay");
+                               if (overlay) {
+                                       overlay.style.display = "block";
+                               }
+                       }
+       
+                       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";                            
+                               }
+                       }
+
+                       /* FIXME this needs to be moved out somewhere */
+
+                       if (document.getElementById("tags_choices")) {
+                               new Ajax.Autocompleter('tags_str', 'tags_choices',
+                                       "backend.php?op=rpc&subop=completeTags",
+                                       { tokens: ',', paramName: "search" });
+                       }
+
+                       notify("");
+               } catch (e) {
+                       exception_error("infobox_callback", e);
+               }
+       }
+}
+
+function helpbox_callback() {
+       if (xmlhttp.readyState == 4) {
+               var box = document.getElementById('helpBox');
+               var shadow = document.getElementById('helpBoxShadow');
                if (box) {                      
                        box.innerHTML=xmlhttp.responseText;                     
                        if (shadow) {
@@ -1217,16 +1498,25 @@ function infobox_callback() {
                                box.style.display = "block";                            
                        }
                }
+               notify("");
        }
 }
 
-function qaddFilter() {
+function addFilter() {
 
        if (!xmlhttp_ready(xmlhttp)) {
                printLockingError();
                return
        }
 
+       var form = document.forms['filter_add_form'];
+       var reg_exp = form.reg_exp.value;
+
+       if (reg_exp == "") {
+               alert("Can't add filter: nothing to match on.");
+               return false;
+       }
+
        var query = Form.serialize("filter_add_form");
 
        xmlhttp.open("GET", "backend.php?" + query, true);
@@ -1245,34 +1535,49 @@ function toggleSubmitNotEmpty(e, submit_id) {
 }
 
 function isValidURL(s) {
-       return s.match("http://") != null || s.match("https://") != null;
+       return s.match("http://") != null || s.match("https://") != null || s.match("feed://") != null;
 }
 
-function qafAdd() {
+function qaddFeed() {
 
        if (!xmlhttp_ready(xmlhttp)) {
                printLockingError();
                return
        }
 
-       notify("Adding feed...");
+       var form = document.forms['feed_add_form'];
+       var feed_url = form.feed_url.value;
+
+       if (feed_url == "") {
+               alert("Can't subscribe: no feed URL given.");
+               return false;
+       }
+
+       notify_progress(__("Subscribing to feed..."), true);
 
        closeInfoBox();
 
-       var feeds_doc = getFeedsContext().document;
+       var feeds_doc = document;
 
 //     feeds_doc.location.href = "backend.php?op=error&msg=Loading,%20please wait...";
        
        var query = Form.serialize("feed_add_form");
        
-       xmlhttp.open("GET", "backend.php?" + query, true);
+       debug("subscribe q: " + query);
+
+/*     xmlhttp.open("GET", "backend.php?" + query, true);
        xmlhttp.onreadystatechange=dlg_frefresh_callback;
-       xmlhttp.send(null);
+       xmlhttp.send(null); */
+
+       xmlhttp.open("POST", "backend.php", true);
+       xmlhttp.onreadystatechange=dlg_frefresh_callback;
+       xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
+       xmlhttp.send(query);
 
        return false;
 }
 
-function filterCR(e)
+function filterCR(e, f)
 {
      var key;
 
@@ -1281,10 +1586,16 @@ function filterCR(e)
      else
           key = e.which;     //firefox
 
-     if(key == 13)
-          return false;
-     else
-          return true;
+       if (key == 13) {
+               if (typeof f != 'undefined') {
+                       f();
+                       return false;
+               } else {
+                       return false;
+               }
+       } else {
+               return true;
+       }
 }
 
 function getMainContext() {
@@ -1299,7 +1610,6 @@ function getContentContext() {
        return this.window;
 }
 
-
 function getHeadlinesContext() {
        return this.window;
 }
@@ -1307,15 +1617,14 @@ function getHeadlinesContext() {
 var debug_last_class = "even";
 
 function debug(msg) {
-       var ctx = getMainContext();
 
-       if (ctx.debug_last_class == "even") {
-               ctx.debug_last_class = "odd";
+       if (debug_last_class == "even") {
+               debug_last_class = "odd";
        } else {
-               ctx.debug_last_class = "even";
+               debug_last_class = "even";
        }
 
-       var c = ctx.document.getElementById('debug_output');
+       var c = document.getElementById('debug_output');
        if (c && c.style.display == "block") {
                while (c.lastChild != 'undefined' && c.childNodes.length > 100) {
                        c.removeChild(c.lastChild);
@@ -1324,63 +1633,37 @@ function debug(msg) {
                var d = new Date();
                var ts = leading_zero(d.getHours()) + ":" + leading_zero(d.getMinutes()) +
                        ":" + leading_zero(d.getSeconds());
-               c.innerHTML = "<li class=\"" + ctx.debug_last_class + "\"><span class=\"debugTS\">[" + ts + "]</span> " + 
+               c.innerHTML = "<li class=\"" + debug_last_class + "\"><span class=\"debugTS\">[" + ts + "]</span> " + 
                        msg + "</li>" + c.innerHTML;
        }
 }
 
 function getInitParam(key) {
-       return getMainContext().init_params[key];
+       return init_params[key];
 }
 
-function storeInitParam(key, value, is_client) {
-       try {
-               if (!is_client) {
-                       if (getMainContext().init_params[key] != value) {
-                               debug("storeInitParam: " + key + " => " + value);
-                               //new Ajax.Request("backend.php?op=rpc&subop=storeParam&key=" + 
-                               //      param_escape(key) + "&value=" + param_escape(value));   
-                               var f = getMainContext().document.getElementById("backReqBox");
-                               f.src = "backend.php?op=rpc&subop=storeParam&key=" + 
-                                       param_escape(key) + "&value=" + param_escape(value);
-                       }
-               }
-               getMainContext().init_params[key] = value;
-       } catch (e) {
-               exception_error("storeInitParam", e);
-       }
+function storeInitParam(key, value) {
+       debug("<b>storeInitParam is OBSOLETE: " + key + " => " + value + "</b>");
+       init_params[key] = value;
 }
 
-/*
-function storeInitParams(params, is_client) {
-       try {
-               var s = "";
-
-               for (k in params) {
-                       if (getMainContext().init_params[k] != params[k]) {
-                               s += k + "=" + params[k] + ";";
-                               getMainContext().init_params[k] = params[k];
-                       }
-               } 
-
-               debug("storeInitParams: " + s);
-       
-               if (!is_client) {
-                       new Ajax.Request("backend.php?op=rpc&subop=storeParams&str=" + s);
-               }
-       } catch (e) {
-               exception_error("storeInitParams", e);
-       }
-}*/
-
 function fatalError(code, message) {
        try {   
-               var fe = document.getElementById("fatal_error");
-               var fc = document.getElementById("fatal_error_msg");
 
-               fc.innerHTML = "Code " + code + ": " + message;
+               if (code == 6) {
+                       window.location.href = "tt-rss.php";                    
+               } else if (code == 5) {
+                       window.location.href = "update.php";
+               } else {
+                       var fe = document.getElementById("fatal_error");
+                       var fc = document.getElementById("fatal_error_msg");
+       
+                       if (message == "") message = "Unknown error";
 
-               fe.style.display = "block";
+                       fc.innerHTML = "<img src='images/sign_excl.png'> " + message + " (Code " + code + ")";
+       
+                       fe.style.display = "block";
+               }
 
        } catch (e) {
                exception_error("fatalError", e);
@@ -1407,3 +1690,116 @@ function getFeedName(id, is_cat) {
 function viewContentUrl(url) {
        getContentContext().location = url;
 }
+
+function filterDlgCheckAction(sender) {
+
+       try {
+
+               var action = sender[sender.selectedIndex].value;
+
+               var form = document.forms["filter_add_form"];
+       
+               if (!form) {
+                       form = document.forms["filter_edit_form"];
+               }
+
+               if (!form) {
+                       debug("filterDlgCheckAction: can't find form!");
+                       return;
+               }
+
+               var action_param = form.action_param;
+
+               if (!action_param) {
+                       debug("filterDlgCheckAction: can't find action param!");
+                       return;
+               }
+
+               // if selected action supports parameters, enable params field
+               if (action == 4) {
+                       action_param.disabled = false;
+               } else {
+                       action_param.disabled = true;
+               }
+
+       } catch (e) {
+               exception_error(e, "filterDlgCheckAction");
+       }
+
+}
+
+function explainError(code) {
+       return displayDlg("explainError", code);
+}
+
+function logoutUser() {
+       try {
+               if (xmlhttp_ready(xmlhttp_rpc)) {
+
+                       notify_progress("Logging out, please wait...", true);
+
+                       xmlhttp_rpc.open("GET", "backend.php?op=rpc&subop=logout", true);
+                       xmlhttp_rpc.onreadystatechange=logout_callback;
+                       xmlhttp_rpc.send(null);
+               } else {
+                       printLockingError();
+               }
+       } catch (e) {
+               exception_error("logoutUser", e);
+       }
+}
+
+// this only searches loaded headlines list, not in CDM
+function getRelativePostIds(id) {
+
+       debug("getRelativePostIds: " + id);
+
+       var ids = new Array();
+       var container = document.getElementById("headlinesList");
+
+       if (container) {
+               var rows = container.rows;
+
+               for (var i = 0; i < rows.length; i++) {
+                       var r_id = rows[i].id.replace("RROW-", "");
+
+                       if (r_id == id) {
+                               if (i > 0) ids.push(rows[i-1].id.replace("RROW-", ""));
+                               if (i > 1) ids.push(rows[i-2].id.replace("RROW-", ""));
+                               if (i > 2) ids.push(rows[i-3].id.replace("RROW-", ""));
+
+                               if (i < rows.length-1) ids.push(rows[i+1].id.replace("RROW-", ""));
+                               if (i < rows.length-2) ids.push(rows[i+2].id.replace("RROW-", ""));
+                               if (i < rows.length-3) ids.push(rows[i+3].id.replace("RROW-", ""));
+
+                               return ids;
+                       }
+               }
+       }
+
+       return false;
+}
+
+function openArticleInNewWindow(id) {
+       try {
+
+               if (!xmlhttp_ready(xmlhttp_rpc)) {
+                       printLockingError();
+                       return
+               }
+
+               debug("openArticleInNewWindow: " + id);
+
+               var query = "backend.php?op=rpc&subop=getArticleLink&id=" + id;
+
+               debug(query);
+
+               xmlhttp_rpc.open("GET", query, true);
+               xmlhttp_rpc.onreadystatechange=open_article_callback;
+               xmlhttp_rpc.send(null);
+
+       } catch (e) {
+               exception_error("openArticleInNewWindow", e);
+       }
+}
+