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tt-rss/tt-rss.js

619 lines
13 KiB
JavaScript

19 years ago
/*
This program is Copyright (c) 2003-2005 Andrew Dolgov <cthulhoo@gmail.com>
Licensed under GPL v.2 or (at your preference) any later version.
*/
var xmlhttp = false;
var xmlhttp_rpc = false;
var xmlhttp_view = false;
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var total_unread = 0;
var first_run = true;
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var active_post_id = false;
var active_feed_id = false;
var active_offset = false;
var total_feed_entries = false;
var _viewfeed_autoselect_first = false;
var _viewfeed_autoselect_last = false;
var _update_ids;
var _update_num_ids;
var search_query = "";
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/*@cc_on @*/
/*@if (@_jscript_version >= 5)
// JScript gives us Conditional compilation, we can cope with old IE versions.
// and security blocked creation of the objects.
try {
xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try {
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
xmlhttp_rpc = new ActiveXObject("Microsoft.XMLHTTP");
xmlhttp_view = new ActiveXObject("Microsoft.XMLHTTP");
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} catch (E) {
xmlhttp = false;
xmlhttp_rpc = false;
xmlhttp_view = false;
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}
}
@end @*/
if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
xmlhttp = new XMLHttpRequest();
xmlhttp_rpc = new XMLHttpRequest();
xmlhttp_view = new XMLHttpRequest();
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}
function feedlist_callback() {
var container = document.getElementById('feeds');
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if (xmlhttp.readyState == 4) {
container.innerHTML=xmlhttp.responseText;
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if (first_run) {
scheduleFeedUpdate(false);
first_run = false;
} else {
notify("");
}
}
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}
function feed_update_callback() {
if (xmlhttp_rpc.readyState == 4) {
var result = xmlhttp_rpc.responseText;
notify(_update_ids);
updateFeed(_update_ids.shift());
}
}
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function viewfeed_callback() {
var container = document.getElementById('headlines');
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if (xmlhttp.readyState == 4) {
container.innerHTML = xmlhttp.responseText;
var factive = document.getElementById("FACTIVE");
var funread = document.getElementById("FUNREAD");
var ftotal = document.getElementById("FTOTAL");
if (_viewfeed_autoselect_first == true) {
_viewfeed_autoselect_first = false;
view(getFirstVisibleHeadlineId(), active_feed_id);
}
if (_viewfeed_autoselect_last == true) {
_viewfeed_autoselect_last = false;
view(getLastVisibleHeadlineId(), active_feed_id);
}
if (ftotal && factive && funread) {
var feed_id = factive.innerHTML;
var feedr = document.getElementById("FEEDR-" + feed_id);
var feedt = document.getElementById("FEEDT-" + feed_id);
var feedu = document.getElementById("FEEDU-" + feed_id);
feedt.innerHTML = ftotal.innerHTML;
feedu.innerHTML = funread.innerHTML;
total_feed_entries = ftotal.innerHTML;
if (feedu.innerHTML > 0 && !feedr.className.match("Unread")) {
feedr.className = feedr.className + "Unread";
} else if (feedu.innerHTML <= 0) {
feedr.className = feedr.className.replace("Unread", "");
}
cleanSelected("feedsList");
feedr.className = feedr.className + "Selected";
}
var searchbox = document.getElementById("searchbox");
searchbox.value = search_query;
markHeadline(active_post_id);
notify("");
}
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}
function view_callback() {
var container = document.getElementById('content');
if (xmlhttp_view.readyState == 4) {
container.innerHTML=xmlhttp_view.responseText;
markHeadline(active_post_id);
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}
}
function refetch_callback() {
if (xmlhttp_rpc.readyState == 4) {
notify("All feeds updated");
var container = document.getElementById('feeds');
container.innerHTML = xmlhttp_rpc.responseText;
document.title = "Tiny Tiny RSS";
}
}
function updateFeed(feed_id) {
var query_str = "backend.php?op=rpc&subop=updateFeed&feed=" + feed_id;
if (xmlhttp_ready(xmlhttp_rpc)) {
xmlhttp_rpc.open("GET", query_str, true);
xmlhttp_rpc.onreadystatechange=feed_update_callback;
xmlhttp_rpc.send(null);
} else {
printLockingError();
}
}
function scheduleSepFeedUpdate(force) {
notify("Updating feeds in background (M2)...");
_update_ids = getFeedIds();
_update_num_ids = _update_ids.length;
updateFeed(_update_ids.pop());
}
function scheduleFeedUpdate(force) {
notify("Updating feeds in background...");
document.title = "Tiny Tiny RSS - Updating...";
var query_str = "backend.php?op=rpc&subop=";
if (force) {
query_str = query_str + "forceUpdateAllFeeds";
} else {
query_str = query_str + "updateAllFeeds";
}
if (xmlhttp_ready(xmlhttp_rpc)) {
xmlhttp_rpc.open("GET", query_str, true);
xmlhttp_rpc.onreadystatechange=refetch_callback;
xmlhttp_rpc.send(null);
} else {
printLockingError();
}
}
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function updateFeedList(silent, fetch) {
if (silent != true) {
notify("Loading feed list...");
}
var query_str = "backend.php?op=feeds";
if (fetch) query_str = query_str + "&fetch=yes";
if (xmlhttp_ready(xmlhttp)) {
xmlhttp.open("GET", query_str, true);
xmlhttp.onreadystatechange=feedlist_callback;
xmlhttp.send(null);
} else {
printLockingError();
}
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}
function catchupPage(feed) {
if (!xmlhttp_ready(xmlhttp)) {
printLockingError();
return
}
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) {
if (content.rows[i].className.match("Unread")) {
rows.push(row_id);
content.rows[i].className = content.rows[i].className.replace("Unread", "");
}
var upd_img_pic = document.getElementById("FUPDPIC-" + row_id);
if (upd_img_pic) {
upd_img_pic.innerHTML = "";
}
}
}
if (rows.length > 0) {
var feedr = document.getElementById("FEEDR-" + feed);
var feedu = document.getElementById("FEEDU-" + feed);
feedu.innerHTML = feedu.innerHTML - rows.length;
if (feedu.innerHTML > 0 && !feedr.className.match("Unread")) {
feedr.className = feedr.className + "Unread";
} else if (feedu.innerHTML <= 0) {
feedr.className = feedr.className.replace("Unread", "");
}
var query_str = "backend.php?op=rpc&subop=catchupPage&ids=" +
param_escape(rows.toString());
notify("Marking this page as read...");
var button = document.getElementById("btnCatchupPage");
if (button) {
button.className = "disabledButton";
button.href = "";
}
xmlhttp.open("GET", query_str, true);
xmlhttp.onreadystatechange=notify_callback;
xmlhttp.send(null);
} else {
notify("No unread items on this page.");
}
}
function catchupAllFeeds() {
if (!xmlhttp_ready(xmlhttp)) {
printLockingError();
return
}
var query_str = "backend.php?op=feeds&subop=catchupAll";
notify("Marking all feeds as read...");
xmlhttp.open("GET", query_str, true);
xmlhttp.onreadystatechange=feedlist_callback;
xmlhttp.send(null);
}
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function viewfeed(feed, skip, subop) {
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enableHotkeys();
var searchbox = document.getElementById("searchbox");
if (searchbox) {
search_query = searchbox.value;
} else {
search_query = "";
}
var viewbox = document.getElementById("viewbox");
var view_mode;
if (viewbox) {
view_mode = viewbox.value;
} else {
view_mode = "All Posts";
}
/* if (active_feed_id == feed && subop != "ForceUpdate") {
notify("This feed is currently selected.");
return;
} */
if (skip < 0 || skip > total_feed_entries) {
return;
}
if (!xmlhttp_ready(xmlhttp)) {
printLockingError();
return
}
if (active_feed_id != feed || skip != active_offset) {
active_post_id = false;
}
active_feed_id = feed;
active_offset = skip;
var query = "backend.php?op=viewfeed&feed=" + param_escape(feed) +
"&skip=" + param_escape(skip) + "&subop=" + param_escape(subop) +
"&view=" + param_escape(view_mode);
if (search_query != "") {
query = query + "&search=" + param_escape(search_query);
}
xmlhttp.open("GET", query, true);
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xmlhttp.onreadystatechange=viewfeed_callback;
xmlhttp.send(null);
notify("Loading headlines...");
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}
function markHeadline(id) {
var row = document.getElementById("RROW-" + id);
if (row) {
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 cleanSelected(element) {
var content = document.getElementById(element);
var rows = new Array();
for (i = 0; i < content.rows.length; i++) {
content.rows[i].className = content.rows[i].className.replace("Selected", "");
}
}
function view(id,feed_id) {
enableHotkeys();
if (!xmlhttp_ready(xmlhttp_view)) {
printLockingError();
return
}
var crow = document.getElementById("RROW-" + id);
if (crow.className.match("Unread")) {
var umark = document.getElementById("FEEDU-" + feed_id);
umark.innerHTML = umark.innerHTML - 1;
crow.className = crow.className.replace("Unread", "");
if (umark.innerHTML == "0") {
var feedr = document.getElementById("FEEDR-" + feed_id);
feedr.className = feedr.className.replace("Unread", "");
}
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total_unread--;
}
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cleanSelected("headlinesList");
// crow.className = crow.className + "Selected";
var upd_img_pic = document.getElementById("FUPDPIC-" + id);
if (upd_img_pic) {
upd_img_pic.innerHTML = "";
}
// document.getElementById('content').innerHTML='Loading, please wait...';
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var unread_rows = getVisibleUnreadHeadlines();
if (unread_rows.length == 0) {
var button = document.getElementById("btnCatchupPage");
if (button) {
button.className = "disabledButton";
button.href = "";
}
}
active_post_id = id;
xmlhttp_view.open("GET", "backend.php?op=view&id=" + param_escape(id), true);
xmlhttp_view.onreadystatechange=view_callback;
xmlhttp_view.send(null);
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}
function timeout() {
scheduleFeedUpdate(true);
setTimeout("timeout()", 1800*1000);
}
function resetSearch() {
document.getElementById("searchbox").value = "";
viewfeed(active_feed_id, 0, "");
}
function search(feed) {
viewfeed(feed, 0, "");
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}
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function localPiggieFunction(enable) {
if (enable) {
var query_str = "backend.php?op=feeds&subop=piggie";
if (xmlhttp_ready(xmlhttp)) {
xmlhttp.open("GET", query_str, true);
xmlhttp.onreadystatechange=feedlist_callback;
xmlhttp.send(null);
}
}
}
function relativeid_callback() {
if (xmlhttp_rpc.readyState == 4) {
notify(xmlhttp_rpc.responseText);
}
}
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 moveToPost(mode) {
var rows = getVisibleHeadlineIds();
var prev_id;
var next_id;
if (active_post_id == false) {
next_id = getFirstVisibleHeadlineId();
prev_id = getLastVisibleHeadlineId();
} else {
for (var i = 0; i < rows.length; i++) {
if (rows[i] == active_post_id) {
prev_id = rows[i-1];
next_id = rows[i+1];
}
}
}
if (mode == "next") {
if (next_id != undefined) {
view(next_id, active_feed_id);
} else {
_viewfeed_autoselect_first = true;
viewfeed(active_feed_id, active_offset+15);
}
}
if (mode == "prev") {
if ( prev_id != undefined) {
view(prev_id, active_feed_id);
} else {
_viewfeed_autoselect_last = true;
viewfeed(active_feed_id, active_offset-15);
}
}
}
function localHotkeyHandler(keycode) {
if (keycode == 78) {
return moveToPost('next');
}
if (keycode == 80) {
return moveToPost('prev');
}
if (keycode == 82) {
return scheduleFeedUpdate(true);
}
if (keycode == 85) {
return viewfeed(active_feed_id, active_offset, "ForceUpdate");
}
// notify("KC: " + keycode);
}
function toggleMark(id, toggle) {
// notify("Toggle mark: " + id + ", " + toggle);
if (!xmlhttp_ready(xmlhttp_rpc)) {
printLockingError();
return;
}
var mark_img = document.getElementById("FMARKPIC-" + id);
var query = "backend.php?op=rpc&id=" + id + "&subop=mark";
if (toggle == true) {
mark_img.src = "images/mark_set.png";
mark_img.alt = "Reset mark";
mark_img.setAttribute('onclick', 'javascript:toggleMark('+id+', false)');
query = query + "&mark=1";
} else {
mark_img.src = "images/mark_unset.png";
mark_img.alt = "Set mark";
mark_img.setAttribute('onclick', 'javascript:toggleMark('+id+', true)');
query = query + "&mark=0";
}
xmlhttp_rpc.open("GET", query, true);
xmlhttp_rpc.onreadystatechange=rpc_notify_callback;
xmlhttp_rpc.send(null);
}
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function init() {
// IE kludge
if (xmlhttp && !xmlhttp_rpc) {
xmlhttp_rpc = xmlhttp;
xmlhttp_view = xmlhttp;
}
if (!xmlhttp || !xmlhttp_rpc || !xmlhttp_view) {
document.getElementById("headlines").innerHTML =
"<b>Fatal error:</b> This program needs XmlHttpRequest " +
"to function properly. Your browser doesn't seem to support it.";
return;
}
updateFeedList(false, false);
document.onkeydown = hotkey_handler;
setTimeout("timeout()", 1800*1000);
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}