var hotkeys_enabled = true;
-
+var debug_mode_enabled = false;
var xmlhttp_rpc = Ajax.getTransport();
function browser_has_opacity() {
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;
return obj.readyState == 4 || obj.readyState == 0 || !obj.readyState;
}
+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) {
}
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;
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);
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) {
}
}
-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_error(msg, no_hide) {
+ notify_real(msg, no_hide, 3);
+
}
-function notify(msg, no_hide, is_err) {
- notify_real(msg, document, no_hide, is_err);
+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;
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();
if (new_feed) viewfeed(new_feed, '');
}
- if (keycode == 78 || keycode == 40) { // n, down
- if (typeof h_ctx.moveToPost != 'undefined') {
- return h_ctx.moveToPost('next');
+ if (!is_safari() && (keycode == 78 || keycode == 40)) { // n, down
+ 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 (!is_safari() && (keycode == 80 || keycode == 38)) { // p, up
+ 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 (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);
}
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);
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);
}
function parse_counters(reply, scheduled_call) {
try {
- var f_document = document;
- var title_obj = this.window;
var feeds_found = 0;
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") {
var updated = reply.childNodes[l].getAttribute("updated");
if (id == "global-unread") {
- title_obj.global_unread = ctr;
- title_obj.updateTitle();
+ global_unread = ctr;
+ updateTitle();
continue;
}
}
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) {
}
}
- 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");
}
}
+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;
}
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);
function resort_feedlist() {
debug("resort_feedlist");
- var fd = getFeedsContext().document;
+ var fd = document;
if (fd.getElementById("feedCatHolder")) {
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);
debug("hideOrShowFeeds: " + doc + ", " + hide);
- var fd = getFeedsContext().document;
+ var fd = document;
var list = fd.getElementById("feedList");
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; }
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-")) {
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;
if (getInitParam("hide_read_feeds") == 1) {
if (child.className != "feed") {
- alert(child.className);
+// alert(child.className);
return child.id.replace('FEEDR-', '');
}
} else {
}
} else {
- var feed = list.ownerDocument.getElementById("FEEDR-" + getActiveFeedId());
+ var feed = list.ownerDocument.getElementById("FEEDR-" + id);
if (getInitParam("hide_read_feeds") == 1) {
unread_only = true;
}
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-", "");
+ }
}
}
}
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-", "");
+ }
}
}
}
}
}
-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);
}
return
}
- notify("");
+ notify_progress("Loading, please wait...");
xmlhttp.open("GET", "backend.php?op=dlg&id=" +
param_escape(id) + "¶m=" + param_escape(param), true);
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);
+ }
}
}
box.style.display = "block";
}
}
+ notify("");
}
}
-function qaddFilter() {
+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) {
+ shadow.style.display = "block";
+ } else {
+ box.style.display = "block";
+ }
+ }
+ notify("");
+ }
+}
+
+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);
}
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("Adding feed...");
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;
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() {
return this.window;
}
-
function getHeadlinesContext() {
return this.window;
}
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);
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);
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);
+ }
+}
git.wh0rd.org / tt-rss.git / blobdiff