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tt-rss/functions.js

1064 lines
24 KiB
JavaScript

var hotkeys_enabled = true;
function browser_has_opacity() {
return navigator.userAgent.match("Gecko") != null ||
navigator.userAgent.match("Opera") != null;
}
function exception_error(location, e) {
var msg;
if (e.fileName) {
var base_fname = e.fileName.substring(e.fileName.lastIndexOf("/") + 1);
msg = "Exception: " + e.name + ", " + e.message +
"\nFunction: " + location + "()" +
"\nLocation: " + base_fname + ":" + e.lineNumber;
} else {
msg = "Exception: " + e + "\nFunction: " + location + "()";
}
alert(msg);
}
function disableHotkeys() {
hotkeys_enabled = false;
}
function enableHotkeys() {
hotkeys_enabled = true;
}
function xmlhttp_ready(obj) {
return obj.readyState == 4 || obj.readyState == 0 || !obj.readyState;
}
function notify_callback() {
var container = document.getElementById('notify');
if (xmlhttp.readyState == 4) {
container.innerHTML=xmlhttp.responseText;
}
}
function rpc_notify_callback() {
var container = document.getElementById('notify');
if (xmlhttp_rpc.readyState == 4) {
container.innerHTML=xmlhttp_rpc.responseText;
}
}
function rpc_pnotify_callback() {
var container = parent.document.getElementById('notify');
if (xmlhttp_rpc.readyState == 4) {
container.innerHTML=xmlhttp_rpc.responseText;
}
}
function param_escape(arg) {
if (typeof encodeURIComponent != 'undefined')
return encodeURIComponent(arg);
else
return escape(arg);
}
function param_unescape(arg) {
if (typeof decodeURIComponent != 'undefined')
return decodeURIComponent(arg);
else
return unescape(arg);
}
function delay(gap) {
var then,now;
then=new Date().getTime();
now=then;
while((now-then)<gap) {
now=new Date().getTime();
}
}
var notify_hide_timerid = false;
var notify_last_doc = 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";
}
}
}
function notify_real(msg, doc, no_hide, is_err) {
var n = doc.getElementById("notify");
var nb = doc.getElementById("notify_body");
if (!n || !nb) return;
if (notify_hide_timerid) {
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);
}
return;
} else {
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";
}
nb.innerHTML = msg;
if (!no_hide) {
notify_hide_timerid = window.setTimeout("hide_notify()", 3000);
}
}
function p_notify(msg, no_hide, is_err) {
notify_real(msg, parent.document, no_hide, is_err);
}
function notify(msg, no_hide, is_err) {
notify_real(msg, document, no_hide, is_err);
}
function printLockingError() {
notify("Please wait until operation finishes");}
var seq = "";
function hotkey_handler(e) {
var keycode;
if (!hotkeys_enabled) return;
if (window.event) {
keycode = window.event.keyCode;
} else if (e) {
keycode = e.which;
}
if (keycode == 13 || keycode == 27) {
seq = "";
} else {
seq = seq + "" + keycode;
}
if (document.getElementById("piggie")) {
if (seq.match("807371717369")) {
seq = "";
localPiggieFunction(true);
} else {
localPiggieFunction(false);
}
}
if (typeof localHotkeyHandler != 'undefined') {
try {
localHotkeyHandler(keycode);
} catch (e) {
exception_error("hotkey_handler", e);
}
}
}
function cleanSelectedList(element) {
var content = document.getElementById(element);
if (!document.getElementById("feedCatHolder")) {
for (i = 0; i < content.childNodes.length; i++) {
var child = content.childNodes[i];
try {
child.className = child.className.replace("Selected", "");
} catch (e) {
//
}
}
} else {
for (i = 0; i < content.childNodes.length; i++) {
var child = content.childNodes[i];
if (child.id == "feedCatHolder") {
parent.debug(child.id);
var fcat = child.lastChild;
for (j = 0; j < fcat.childNodes.length; j++) {
var feed = fcat.childNodes[j];
feed.className = feed.className.replace("Selected", "");
}
}
}
}
}
function cleanSelected(element) {
var content = document.getElementById(element);
for (i = 0; i < content.rows.length; i++) {
content.rows[i].className = content.rows[i].className.replace("Selected", "");
}
}
function getVisibleUnreadHeadlines() {
var content = document.getElementById("headlinesList");
var rows = new Array();
for (i = 0; i < content.rows.length; i++) {
var row_id = content.rows[i].id.replace("RROW-", "");
if (row_id.length > 0 && content.rows[i].className.match("Unread")) {
rows.push(row_id);
}
}
return rows;
}
function getVisibleHeadlineIds() {
var content = document.getElementById("headlinesList");
var rows = new Array();
for (i = 0; i < content.rows.length; i++) {
var row_id = content.rows[i].id.replace("RROW-", "");
if (row_id.length > 0) {
rows.push(row_id);
}
}
return rows;
}
function getFirstVisibleHeadlineId() {
var rows = getVisibleHeadlineIds();
return rows[0];
}
function getLastVisibleHeadlineId() {
var rows = getVisibleHeadlineIds();
return rows[rows.length-1];
}
function markHeadline(id) {
var row = document.getElementById("RROW-" + id);
if (row) {
var is_active = false;
if (row.className.match("Active")) {
is_active = true;
}
row.className = row.className.replace("Selected", "");
row.className = row.className.replace("Active", "");
row.className = row.className.replace("Insensitive", "");
if (is_active) {
row.className = row.className = "Active";
}
var check = document.getElementById("RCHK-" + id);
if (check) {
check.checked = true;
}
row.className = row.className + "Selected";
}
}
function getFeedIds() {
var content = document.getElementById("feedsList");
var rows = new Array();
for (i = 0; i < content.rows.length; i++) {
var id = content.rows[i].id.replace("FEEDR-", "");
if (id.length > 0) {
rows.push(id);
}
}
return rows;
}
function setCookie(name, value, lifetime, path, domain, secure) {
var d = false;
if (lifetime) {
d = new Date();
d.setTime(lifetime * 1000);
}
int_setCookie(name, value, d, path, domain, secure);
}
function int_setCookie(name, value, expires, path, domain, secure) {
document.cookie= name + "=" + escape(value) +
((expires) ? "; expires=" + expires.toGMTString() : "") +
((path) ? "; path=" + path : "") +
((domain) ? "; domain=" + domain : "") +
((secure) ? "; secure" : "");
}
function delCookie(name, path, domain) {
if (getCookie(name)) {
document.cookie = name + "=" +
((path) ? ";path=" + path : "") +
((domain) ? ";domain=" + domain : "" ) +
";expires=Thu, 01-Jan-1970 00:00:01 GMT";
}
}
function getCookie(name) {
var dc = document.cookie;
var prefix = name + "=";
var begin = dc.indexOf("; " + prefix);
if (begin == -1) {
begin = dc.indexOf(prefix);
if (begin != 0) return null;
}
else {
begin += 2;
}
var end = document.cookie.indexOf(";", begin);
if (end == -1) {
end = dc.length;
}
return unescape(dc.substring(begin + prefix.length, end));
}
function disableContainerChildren(id, disable, doc) {
if (!doc) doc = document;
var container = doc.getElementById(id);
for (var i = 0; i < container.childNodes.length; i++) {
var child = container.childNodes[i];
try {
child.disabled = disable;
} catch (E) {
}
if (disable) {
if (child.className && child.className.match("button")) {
child.className = "disabledButton";
}
} else {
if (child.className && child.className.match("disabledButton")) {
child.className = "button";
}
}
}
}
function gotoPreferences() {
document.location.href = "prefs.php";
}
function gotoMain() {
document.location.href = "tt-rss.php";
}
function gotoExportOpml() {
document.location.href = "opml.php?op=Export";
}
function getActiveFeedId() {
return getCookie("ttrss_vf_actfeed");
}
function setActiveFeedId(id) {
return setCookie("ttrss_vf_actfeed", id);
}
var xmlhttp_rpc = false;
/*@cc_on @*/
/*@if (@_jscript_version >= 5)
// JScript gives us Conditional compilation, we can cope with old IE versions.
// and security blocked creation of the objects.
try {
xmlhttp_rpc = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try {
xmlhttp_rpc = new ActiveXObject("Microsoft.XMLHTTP");
} catch (E) {
xmlhttp_rpc = false;
}
}
@end @*/
if (!xmlhttp_rpc && typeof XMLHttpRequest!='undefined') {
xmlhttp_rpc = new XMLHttpRequest();
}
function parse_counters(reply, f_document, title_obj, scheduled_call) {
try {
for (var l = 0; l < reply.childNodes.length; l++) {
if (!reply.childNodes[l] ||
typeof(reply.childNodes[l].getAttribute) == "undefined") {
// where did this come from?
continue;
}
var id = reply.childNodes[l].getAttribute("id");
var t = reply.childNodes[l].getAttribute("type");
var ctr = reply.childNodes[l].getAttribute("counter");
var error = reply.childNodes[l].getAttribute("error");
var has_img = reply.childNodes[l].getAttribute("hi");
var updated = reply.childNodes[l].getAttribute("updated");
if (id == "global-unread") {
title_obj.global_unread = ctr;
title_obj.updateTitle();
continue;
}
if (t == "category") {
var catctr = f_document.getElementById("FCATCTR-" + id);
if (catctr) {
catctr.innerHTML = "(" + ctr + " unread)";
}
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);
if (updated && feedlink) {
if (error) {
feedlink.title = "Error: " + error + " (" + updated + ")";
} else {
feedlink.title = "Updated: " + updated;
}
}
if (feedctr && feedu && feedr) {
if (feedu.innerHTML != ctr && id == getActiveFeedId() && scheduled_call) {
var hf = title_obj.parent.frames["headlines-frame"];
hf.location.reload(true);
}
feedu.innerHTML = ctr;
if (error) {
feedr.className = feedr.className.replace("feed", "error");
} else if (id > 0) {
feedr.className = feedr.className.replace("error", "feed");
}
if (ctr > 0) {
feedctr.className = "odd";
if (!feedr.className.match("Unread")) {
var is_selected = feedr.className.match("Selected");
feedr.className = feedr.className.replace("Selected", "");
feedr.className = feedr.className.replace("Unread", "");
feedr.className = feedr.className + "Unread";
if (is_selected) {
feedr.className = feedr.className + "Selected";
}
}
} else {
feedctr.className = "invisible";
feedr.className = feedr.className.replace("Unread", "");
}
}
}
} catch (e) {
exception_error("parse_counters", e);
}
}
// this one is called from feedlist context
// thus title_obj passed to parse_counters is parent (e.g. main ttrss window)
function all_counters_callback() {
if (xmlhttp_rpc.readyState == 4) {
try {
if (!xmlhttp_rpc.responseXML || !xmlhttp_rpc.responseXML.firstChild) {
notify("[all_counters_callback] backend did not return valid XML");
return;
}
if (!parent.frames["feeds-frame"]) {
notify("[all_counters_callback] no parent feeds-frame");
return;
}
var reply = xmlhttp_rpc.responseXML.firstChild;
var f_document = parent.frames["feeds-frame"].document;
parse_counters(reply, f_document, parent);
} catch (e) {
exception_error("all_counters_callback", e);
}
}
}
function update_all_counters(feed) {
if (xmlhttp_ready(xmlhttp_rpc)) {
var query = "backend.php?op=rpc&subop=getAllCounters";
if (feed > 0) {
query = query + "&aid=" + feed;
}
xmlhttp_rpc.open("GET", query, true);
xmlhttp_rpc.onreadystatechange=all_counters_callback;
xmlhttp_rpc.send(null);
}
}
function popupHelp(tid) {
var w = window.open("backend.php?op=help&tid=" + tid,
"Popup Help",
"menubar=no,location=no,resizable=yes,scrollbars=yes,status=no");
}
/** * @(#)isNumeric.js * * Copyright (c) 2000 by Sundar Dorai-Raj
* * @author Sundar Dorai-Raj
* * Email: sdoraira@vt.edu
* * This program is free software; you can redistribute it and/or
* * modify it under the terms of the GNU General Public License
* * as published by the Free Software Foundation; either version 2
* * of the License, or (at your option) any later version,
* * provided that any use properly credits the author.
* * This program is distributed in the hope that it will be useful,
* * but WITHOUT ANY WARRANTY; without even the implied warranty of
* * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* * GNU General Public License for more details at http://www.gnu.org * * */
var numbers=".0123456789";
function isNumeric(x) {
// is x a String or a character?
if(x.length>1) {
// remove negative sign
x=Math.abs(x)+"";
for(j=0;j<x.length;j++) {
// call isNumeric recursively for each character
number=isNumeric(x.substring(j,j+1));
if(!number) return number;
}
return number;
}
else {
// if x is number return true
if(numbers.indexOf(x)>=0) return true;
return false;
}
}
function hideOrShowFeeds(doc, hide) {
if (!doc.styleSheets) return;
var css_rules = doc.styleSheets[0].cssRules;
if (!css_rules || !css_rules.length) return;
for (i = 0; i < css_rules.length; i++) {
var rule = css_rules[i];
if (rule.selectorText == "ul.feedList li.feed") {
if (!hide) {
rule.style.display = "block";
} else {
rule.style.display = "none";
}
}
}
}
function selectTableRow(r, do_select) {
r.className = r.className.replace("Selected", "");
if (do_select) {
r.className = r.className + "Selected";
}
}
function selectTableRowById(elem_id, check_id, do_select) {
try {
var row = document.getElementById(elem_id);
if (row) {
selectTableRow(row, do_select);
}
var check = document.getElementById(check_id);
if (check) {
check.checked = do_select;
}
} catch (e) {
exception_error("selectTableRowById", e);
}
}
function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select,
classcheck, reset_others) {
var content = document.getElementById(content_id);
if (!content) {
alert("[selectTableRows] Element " + content_id + " not found.");
return;
}
for (i = 0; i < content.rows.length; i++) {
if (!classcheck || content.rows[i].className.match(classcheck)) {
if (content.rows[i].id.match(prefix)) {
selectTableRow(content.rows[i], do_select);
var row_id = content.rows[i].id.replace(prefix, "");
var check = document.getElementById(check_prefix + row_id);
if (check) {
check.checked = do_select;
}
} else if (reset_others) {
selectTableRow(content.rows[i], false);
var row_id = content.rows[i].id.replace(prefix, "");
var check = document.getElementById(check_prefix + row_id);
if (check) {
check.checked = false;
}
}
} else if (reset_others) {
selectTableRow(content.rows[i], false);
var row_id = content.rows[i].id.replace(prefix, "");
var check = document.getElementById(check_prefix + row_id);
if (check) {
check.checked = false;
}
}
}
}
function getSelectedTableRowIds(content_id, prefix) {
var content = document.getElementById(content_id);
if (!content) {
alert("[getSelectedTableRowIds] Element " + content_id + " not found.");
return;
}
var sel_rows = new Array();
for (i = 0; i < content.rows.length; i++) {
if (content.rows[i].id.match(prefix) &&
content.rows[i].className.match("Selected")) {
var row_id = content.rows[i].id.replace(prefix + "-", "");
sel_rows.push(row_id);
}
}
return sel_rows;
}
function toggleSelectRowById(sender, id) {
var row = document.getElementById(id);
if (sender.checked) {
if (!row.className.match("Selected")) {
row.className = row.className + "Selected";
}
} else {
if (row.className.match("Selected")) {
row.className = row.className.replace("Selected", "");
}
}
}
function toggleSelectListRow(sender) {
var parent_row = sender.parentNode;
if (sender.checked) {
if (!parent_row.className.match("Selected")) {
parent_row.className = parent_row.className + "Selected";
}
} else {
if (parent_row.className.match("Selected")) {
parent_row.className = parent_row.className.replace("Selected", "");
}
}
}
function toggleSelectRow(sender) {
var parent_row = sender.parentNode.parentNode;
if (sender.checked) {
if (!parent_row.className.match("Selected")) {
parent_row.className = parent_row.className + "Selected";
}
} else {
if (parent_row.className.match("Selected")) {
parent_row.className = parent_row.className.replace("Selected", "");
}
}
}
function openExternalUrl(url) {
var w = window.open(url);
}
function getRelativeFeedId(list, id, direction, unread_only) {
if (!id) {
if (direction == "next") {
for (i = 0; i < list.childNodes.length; i++) {
var child = list.childNodes[i];
if (child.id && child.id == "feedCatHolder") {
if (child.lastChild) {
var cr = getRelativeFeedId(child.firstChild, id, direction);
if (cr) return cr;
}
} else if (child.id && child.id.match("FEEDR-")) {
return child.id.replace('FEEDR-', '');
}
}
}
// FIXME select last feed doesn't work when only unread feeds are visible
if (direction == "prev") {
for (i = list.childNodes.length-1; i >= 0; i--) {
var child = list.childNodes[i];
if (child.id == "feedCatHolder") {
if (child.firstChild) {
var cr = getRelativeFeedId(child.firstChild, id, direction);
if (cr) return cr;
}
} else if (child.id.match("FEEDR-")) {
if (getCookie("ttrss_vf_hreadf") == 1) {
if (child.className != "feed") {
alert(child.className);
return child.id.replace('FEEDR-', '');
}
} else {
return child.id.replace('FEEDR-', '');
}
}
}
}
} else {
var feed = list.ownerDocument.getElementById("FEEDR-" + getActiveFeedId());
if (getCookie("ttrss_vf_hreadf") == 1) {
unread_only = true;
}
if (direction == "next") {
var e = feed;
while (e) {
if (e.nextSibling) {
e = e.nextSibling;
} else if (e.parentNode.parentNode.nextSibling) {
var this_cat = e.parentNode.parentNode;
e = false;
if (this_cat && this_cat.nextSibling) {
while (!e && this_cat.nextSibling) {
this_cat = this_cat.nextSibling;
if (this_cat.id == "feedCatHolder") {
e = this_cat.firstChild.firstChild;
}
}
}
} else {
e = false;
}
if (e) {
if (!unread_only || (unread_only && e.className != "feed" &&
e.className != "error")) {
return e.id.replace("FEEDR-", "");
}
}
}
} else if (direction == "prev") {
var e = feed;
while (e) {
if (e.previousSibling) {
e = e.previousSibling;
} else if (e.parentNode.parentNode.previousSibling) {
var this_cat = e.parentNode.parentNode;
e = false;
if (this_cat && this_cat.previousSibling) {
while (!e && this_cat.previousSibling) {
this_cat = this_cat.previousSibling;
if (this_cat.id == "feedCatHolder") {
e = this_cat.firstChild.lastChild;
}
}
}
} else {
e = false;
}
if (e) {
if (!unread_only || (unread_only && e.className != "feed" &&
e.className != "error")) {
return e.id.replace("FEEDR-", "");
}
}
}
}
}
}
function showBlockElement(id) {
var elem = document.getElementById(id);
if (elem) {
elem.style.display = "block";
} else {
alert("[showBlockElement] can't find element with id " + id);
}
}
function hideParentElement(e) {
e.parentNode.style.display = "none";
}
function dropboxSelect(e, v) {
for (i = 0; i < e.length; i++) {
if (e[i].value == v) {
e.selectedIndex = i;
break;
}
}
}
// originally stolen from http://www.11tmr.com/11tmr.nsf/d6plinks/MWHE-695L9Z
// bugfixed just a little bit :-)
function getURLParam(strParamName){
var strReturn = "";
var strHref = window.location.href;
if (strHref.indexOf("#") == strHref.length-1) {
strHref = strHref.substring(0, strHref.length-1);
}
if ( strHref.indexOf("?") > -1 ){
var strQueryString = strHref.substr(strHref.indexOf("?"));
var aQueryString = strQueryString.split("&");
for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
if (aQueryString[iParam].indexOf(strParamName + "=") > -1 ){
var aParam = aQueryString[iParam].split("=");
strReturn = aParam[1];
break;
}
}
}
return strReturn;
}
function leading_zero(p) {
var s = String(p);
if (s.length == 1) s = "0" + s;
return s;
}
function center_element(e) {
try {
var c_width = document.body.clientWidth;
var c_height = document.body.clientHeight;
var c_scroll = document.body.scrollTop;
var e_width = e.clientWidth;
var e_height = e.clientHeight;
var set_y = (c_height / 2) + c_scroll - (e_height / 2);
var set_x = (c_width / 2) - (e_width / 2);
e.style.top = set_y + "px";
e.style.left = set_x + "px";
} catch (e) {
exception_error("center_element", e);
}
}
function closeInfoBox() {
var box = document.getElementById('infoBox');
var shadow = document.getElementById('infoBoxShadow');
if (shadow) {
shadow.style.display = "none";
} else if (box) {
box.style.display = "none";
}
enableHotkeys();
}
function displayDlg(id, param) {
if (!xmlhttp_ready(xmlhttp)) {
printLockingError();
return
}
notify("");
xmlhttp.open("GET", "backend.php?op=dlg&id=" +
param_escape(id) + "&param=" + param_escape(param), true);
xmlhttp.onreadystatechange=infobox_callback;
xmlhttp.send(null);
disableHotkeys();
}
function infobox_submit_callback() {
if (xmlhttp.readyState == 4) {
notify(xmlhttp.responseText);
closeInfoBox();
// called from prefs, reload tab
if (active_tab) {
selectTab(active_tab, false);
}
}
}
function infobox_callback() {
if (xmlhttp.readyState == 4) {
var box = document.getElementById('infoBox');
var shadow = document.getElementById('infoBoxShadow');
if (box) {
box.innerHTML=xmlhttp.responseText;
if (shadow) {
shadow.style.display = "block";
} else {
box.style.display = "block";
}
}
}
}
function qaddFilter() {
if (!xmlhttp_ready(xmlhttp)) {
printLockingError();
return
}
var regexp = document.getElementById("fadd_regexp");
var match = document.getElementById("fadd_match");
var feed = document.getElementById("fadd_feed");
var action = document.getElementById("fadd_action");
if (regexp.value.length == 0) {
alert("Missing filter expression.");
} else {
notify("Adding filter...");
var v_match = match[match.selectedIndex].text;
var feed_id = feed[feed.selectedIndex].id;
var action_id = action[action.selectedIndex].id;
xmlhttp.open("GET", "backend.php?op=pref-filters&quiet=1&subop=add&regexp=" +
param_escape(regexp.value) + "&match=" + v_match +
"&fid=" + param_escape(feed_id) + "&aid=" + param_escape(action_id), true);
xmlhttp.onreadystatechange=infobox_submit_callback;
xmlhttp.send(null);
regexp.value = "";
}
}
function toggleSubmitNotEmpty(e, submit_id) {
try {
document.getElementById(submit_id).disabled = (e.value == "")
} catch (e) {
exception_error("toggleSubmitNotEmpty", e);
}
}
function isValidURL(s) {
return s.match("http://") != null || s.match("https://") != null;
}