ttrss/digest.js

799 lines
17 KiB
JavaScript

var last_feeds = [];
var init_params = {};
var db = false;
var store = false;
var _active_feed_id = false;
var _active_feed_offset = false;
var _update_timeout = false;
var _view_update_timeout = false;
var _feedlist_expanded = false;
var _update_seq = 1;
function article_appear(article_id) {
try {
new Effect.Appear('A-' + article_id);
} catch (e) {
exception_error("article_appear", e);
}
}
function catchup_feed(feed_id, callback) {
try {
var fn = find_feed(last_feeds, feed_id).title;
if (confirm(__("Mark all articles in %s as read?").replace("%s", fn))) {
var is_cat = "";
if (feed_id < 0) is_cat = "true"; // KLUDGE
var query = "?op=rpc&subop=catchupFeed&feed_id=" +
feed_id + "&is_cat=" + is_cat;
new Ajax.Request("backend.php", {
parameters: query,
onComplete: function(transport) {
if (callback) callback(transport);
update();
} });
}
} catch (e) {
exception_error("catchup_article", e);
}
}
function get_visible_article_ids() {
try {
var elems = $("headlines-content").getElementsByTagName("LI");
var ids = [];
for (var i = 0; i < elems.length; i++) {
if (elems[i].id && elems[i].id.match("A-")) {
ids.push(elems[i].id.replace("A-", ""));
}
}
return ids;
} catch (e) {
exception_error("get_visible_article_ids", e);
}
}
function catchup_visible_articles(callback) {
try {
var ids = get_visible_article_ids();
if (confirm(__("Mark %d displayed articles as read?").replace("%d", ids.length))) {
var query = "?op=rpc&subop=catchupSelected" +
"&cmode=0&ids=" + param_escape(ids);
new Ajax.Request("backend.php", {
parameters: query,
onComplete: function(transport) {
if (callback) callback(transport);
viewfeed(_active_feed_id, 0);
} });
}
} catch (e) {
exception_error("catchup_visible_articles", e);
}
}
function catchup_article(article_id, callback) {
try {
var query = "?op=rpc&subop=catchupSelected" +
"&cmode=0&ids=" + article_id;
new Ajax.Request("backend.php", {
parameters: query,
onComplete: function(transport) {
if (callback) callback(transport);
} });
} catch (e) {
exception_error("catchup_article", e);
}
}
function set_selected_feed(feed_id) {
try {
var feeds = $("feeds-content").getElementsByTagName("LI");
for (var i = 0; i < feeds.length; i++) {
if (feeds[i].id == "F-" + feed_id)
feeds[i].className = "selected";
else
feeds[i].className = "";
}
_active_feed_id = feed_id;
} catch (e) {
exception_error("mark_selected_feed", e);
}
}
function zoom(elem, article_id) {
try {
//alert(elem + "/" + article_id);
elem.innerHTML = "<img src='images/indicator_tiny.gif'> " +
__("Loading, please wait...");
new Ajax.Request("backend.php", {
parameters: "?op=rpc&subop=digest-get-contents&article_id=" +
article_id,
onComplete: function(transport) {
fatal_error_check(transport);
if (transport.responseXML) {
var article = transport.responseXML.getElementsByTagName('article')[0];
elem.innerHTML = article.firstChild.nodeValue;
new Effect.BlindDown(elem, {duration : 0.5});
elem.onclick = false;
elem.style.cursor = "auto";
catchup_article(article_id,
function() {
window.clearTimeout(_view_update_timeout);
_view_update_timeout = window.setTimeout("view_update()", 500);
$("A-" + article_id).className = "read";
});
} else {
elem.innerHTML = __("Error: unable to load article.");
}
} });
} catch (e) {
exception_error("zoom", e);
}
}
function load_more() {
try {
var pr = $("H-LOADING-IMG");
if (pr) Element.show(pr);
viewfeed(_active_feed_id, _active_feed_offset + 10, false, false, true,
function() {
var pr = $("H-LOADING-IMG");
if (pr) Element.hide(pr);
});
} catch (e) {
exception_error("load_more", e);
}
}
function update(callback) {
try {
console.log('updating feeds...');
window.clearTimeout(_update_timeout);
new Ajax.Request("backend.php", {
parameters: "?op=rpc&subop=digest-init",
onComplete: function(transport) {
fatal_error_check(transport);
parse_feeds(transport);
set_selected_feed(_active_feed_id);
if (callback) callback(transport);
} });
_update_timeout = window.setTimeout('update()', 5*1000);
} catch (e) {
exception_error("update", e);
}
}
function remove_headline_entry(article_id) {
try {
var elem = $('A-' + article_id);
if (elem) {
elem.parentNode.removeChild(elem);
}
} catch (e) {
exception_error("remove_headline_entry", e);
}
}
function view_update() {
try {
viewfeed(_active_feed_id, _active_feed_offset, false, true, true);
update();
} catch (e) {
exception_error("view_update", e);
}
}
function view(article_id, dismiss_only) {
try {
remove_headline_entry(article_id);
catchup_article(article_id,
function() {
window.clearTimeout(_view_update_timeout);
_view_update_timeout = window.setTimeout("view_update()", 500);
});
return dismiss_only != true;
} catch (e) {
exception_error("view", e);
}
}
function viewfeed(feed_id, offset, replace, no_effects, no_indicator, callback) {
try {
if (!feed_id) feed_id = _active_feed_id;
if (!offset) {
offset = 0;
} else {
offset = _active_feed_offset + offset;
}
if (replace == undefined) replace = (offset == 0);
_update_seq = _update_seq + 1;
var query = "backend.php?op=rpc&subop=digest-update&feed_id=" +
param_escape(feed_id) + "&offset=" + offset +
"&seq=" + _update_seq;
console.log(query);
if ($("F-" + feed_id)) {
var img = $("F-" + feed_id).getElementsByTagName("IMG")[0];
if (img && !no_indicator) {
img.setAttribute("orig_src", img.src);
img.src = 'images/indicator_tiny.gif';
}
}
new Ajax.Request("backend.php", {
parameters: query,
onComplete: function(transport) {
Element.hide("overlay");
fatal_error_check(transport);
parse_headlines(transport, replace, no_effects);
set_selected_feed(feed_id);
_active_feed_offset = offset;
if (img && !no_indicator)
img.src = img.getAttribute("orig_src");
if (callback) callback(transport);
} });
} catch (e) {
exception_error("view", e);
}
}
function find_article(articles, article_id) {
try {
for (var i = 0; i < articles.length; i++) {
if (articles[i].id == article_id)
return articles[i];
}
return false;
} catch (e) {
exception_error("find_article", e);
}
}
function find_feed(feeds, feed_id) {
try {
for (var i = 0; i < feeds.length; i++) {
if (feeds[i].id == feed_id)
return feeds[i];
}
return false;
} catch (e) {
exception_error("find_feed", e);
}
}
function get_feed_icon(feed) {
try {
if (feed.has_icon)
return getInitParam('icons_url') + "/" + feed.id + '.ico';
if (feed.id == -1)
return 'images/mark_set.png';
if (feed.id == -2)
return 'images/pub_set.png';
if (feed.id == -3)
return 'images/fresh.png';
if (feed.id == -4)
return 'images/tag.png';
if (feed.id < -10)
return 'images/label.png';
return 'images/blank_icon.gif';
} catch (e) {
exception_error("get_feed_icon", e);
}
}
function add_feed_entry(feed) {
try {
var icon_part = "";
icon_part = "<img src='" + get_feed_icon(feed) + "'/>";
var tmp_html = "<li id=\"F-"+feed.id+"\" " +
"onmouseover=\"feed_mi(this)\" onmouseout=\"feed_mo(this)\">" +
icon_part +
"<a href=\"#\" onclick=\"viewfeed("+feed.id+")\">" + feed.title + "</a>" +
"<div class='unread-ctr'>" +
"<img onclick=\"catchup_feed("+feed.id+")\" title=\"" +
__("Mark as read") +
"\" class=\"dismiss\" style='display : none' src=\"images/digest_checkbox.png\">" +
"<span class=\"unread\">" + feed.unread + "</span>" +
"</div>" +
"</li>";
$("feeds-content").innerHTML += tmp_html;
} catch (e) {
exception_error("add_feed_entry", e);
}
}
function add_headline_entry(article, feed, no_effects) {
try {
var icon_part = "";
icon_part = "<img class='icon' src='" + get_feed_icon(feed) + "'/>";
var mark_part = "";
var publ_part = "";
var tags_part = "";
if (article.tags.length > 0) {
tags_part = " " + __("in") + " ";
for (var i = 0; i < Math.min(5, article.tags.length); i++) {
tags_part += "<a href=\"#\" onclick=\"viewfeed('" +
article.tags[i] + "')\">" +
article.tags[i] + "</a>, ";
}
tags_part = tags_part.replace(/, $/, "");
tags_part = "<span class=\"tags\">" + tags_part + "</span>";
}
if (article.marked)
mark_part = "<img title='"+ __("Unstar article")+"' onclick=\"toggle_mark(this, "+article.id+")\" src='images/mark_set.png'>";
else
mark_part = "<img title='"+__("Star article")+"' onclick=\"toggle_mark(this, "+article.id+")\" src='images/mark_unset.png'>";
if (article.published)
publ_part = "<img title='"+__("Unpublish article")+"' onclick=\"toggle_pub(this, "+article.id+")\" src='images/pub_set.png'>";
else
publ_part = "<img title='"+__("Publish article")+"' onclick=\"toggle_pub(this, "+article.id+")\" src='images/pub_unset.png'>";
var style = "";
if (!no_effects) style = "style=\"display : none\"";
if (article.excerpt.trim() == "")
article.excerpt = __("Click to expand article.");
var li_class = "unread";
var fresh_max = getInitParam("fresh_article_max_age") * 60 * 60;
var d = new Date();
if (d.getTime() / 1000 - article.updated < fresh_max)
li_class = "fresh";
var tmp_html = "<li id=\"A-"+article.id+"\" "+style+" class=\""+li_class+"\">" +
icon_part +
"<div class='digest-check'>" +
mark_part +
publ_part +
"<img title='" + __("Mark as read") + "' onclick=\"view("+article.id+", true)\" src='images/digest_checkbox.png'>" +
"</div>" +
"<a target=\"_blank\" href=\""+article.link+"\""+
"onclick=\"return view("+article.id+")\" class='title'>" +
article.title + "</a>" +
"<div class='body'>" +
"<div title=\""+__("Click to expand article")+"\" onclick=\"zoom(this, "+article.id+")\" class='excerpt'>" +
article.excerpt + "</div>" +
"<div class='info'><a href=\#\" onclick=\"viewfeed("+feed.id+")\">" +
feed.title + "</a> " + tags_part + " @ " +
new Date(article.updated * 1000) + "</div>" +
"</div></li>";
$("headlines-content").innerHTML += tmp_html;
if (!no_effects)
window.setTimeout('article_appear(' + article.id + ')', 100);
} catch (e) {
exception_error("add_headline_entry", e);
}
}
function expand_feeds() {
try {
_feedlist_expanded = true;
redraw_feedlist(last_feeds);
} catch (e) {
exception_error("expand_feeds", e);
}
}
function redraw_feedlist(feeds) {
try {
$('feeds-content').innerHTML = "";
var limit = 10;
if (_feedlist_expanded) limit = feeds.length;
for (var i = 0; i < Math.min(limit, feeds.length); i++) {
add_feed_entry(feeds[i]);
}
if (feeds.length > limit) {
$('feeds-content').innerHTML += "<li id='F-MORE-PROMPT'>" +
"<img src='images/blank_icon.gif'>" +
"<a href=\"#\" onclick=\"expand_feeds()\">" +
__("%d more...").replace("%d", feeds.length-10) +
"</a>" + "</li>";
}
} catch (e) {
exception_error("redraw_feedlist", e);
}
}
function parse_feeds(transport) {
try {
if (!transport.responseXML) return;
var feeds = transport.responseXML.getElementsByTagName('feeds')[0];
if (feeds) {
feeds = eval("(" + feeds.firstChild.nodeValue + ")");
feeds.sort( function (a,b)
{
if (b.unread != a.unread)
return (b.unread - a.unread)
else
if (a.title > b.title)
return 1;
else if (a.title < b.title)
return -1;
else
return 0;
});
var all_articles = find_feed(feeds, -4);
update_title(all_articles.unread);
last_feeds = feeds;
redraw_feedlist(feeds);
}
} catch (e) {
exception_error("parse_feeds", e);
}
}
function parse_headlines(transport, replace, no_effects) {
try {
if (!transport.responseXML) return;
var seq = transport.responseXML.getElementsByTagName('seq')[0];
if (seq) {
seq = seq.firstChild.nodeValue;
if (seq != _update_seq) {
console.log("parse_headlines: wrong sequence received.");
return;
}
} else {
return;
}
var headlines = transport.responseXML.getElementsByTagName('headlines')[0];
var headlines_title = transport.responseXML.getElementsByTagName('headlines-title')[0];
if (headlines && headlines_title) {
headlines = eval("(" + headlines.firstChild.nodeValue + ")");
var title = headlines_title.firstChild.nodeValue;
$("headlines-title").innerHTML = title;
if (replace) {
$('headlines-content').innerHTML = '';
Element.hide('headlines-content');
}
var pr = $('H-MORE-PROMPT');
if (pr) pr.parentNode.removeChild(pr);
var inserted = false;
for (var i = 0; i < headlines.length; i++) {
if (!$('A-' + headlines[i].id)) {
add_headline_entry(headlines[i],
find_feed(last_feeds, headlines[i].feed_id), !no_effects);
inserted = $("A-" + headlines[i].id);
}
}
var ids = get_visible_article_ids();
if (ids.length > 0) {
if (pr) {
$('headlines-content').appendChild(pr);
if (!no_effects) new Effect.ScrollTo(inserted);
} else {
$('headlines-content').innerHTML += "<li id='H-MORE-PROMPT'>" +
"<div class='body'>" +
"<a href=\"javascript:catchup_visible_articles()\">" +
__("Mark as read") + "</a> | " +
"<a href=\"javascript:load_more()\">" +
__("Load more...") + "</a>" +
"<img style=\"display : none\" "+
"id=\"H-LOADING-IMG\" src='images/indicator_tiny.gif'>" +
"</div></li>";
}
} else {
// FIXME : display some kind of "nothing to see here" prompt here
}
if (replace && !no_effects)
new Effect.Appear('headlines-content', {duration : 0.3});
//new Effect.Appear('headlines-content');
}
} catch (e) {
exception_error("parse_headlines", e);
}
}
function init_second_stage() {
try {
new Ajax.Request("backend.php", {
parameters: "backend.php?op=rpc&subop=digest-init",
onComplete: function(transport) {
parse_feeds(transport);
window.setTimeout('viewfeed(-4)', 100);
_update_timeout = window.setTimeout('update()', 5*1000);
} });
} catch (e) {
exception_error("init_second_stage", e);
}
}
function init() {
try {
new Ajax.Request("backend.php", {
parameters: "?op=rpc&subop=sanityCheck",
onComplete: function(transport) {
backend_sanity_check_callback(transport);
} });
} catch (e) {
exception_error("digest_init", e);
}
}
function toggle_mark(img, id) {
try {
var query = "?op=rpc&id=" + id + "&subop=mark";
if (!img) return;
if (img.src.match("mark_unset")) {
img.src = img.src.replace("mark_unset", "mark_set");
img.alt = __("Unstar article");
query = query + "&mark=1";
} else {
img.src = img.src.replace("mark_set", "mark_unset");
img.alt = __("Star article");
query = query + "&mark=0";
}
new Ajax.Request("backend.php", {
parameters: query,
onComplete: function(transport) {
update();
} });
} catch (e) {
exception_error("toggle_mark", e);
}
}
function toggle_pub(img, id, note) {
try {
var query = "?op=rpc&id=" + id + "&subop=publ";
if (note != undefined) {
query = query + "&note=" + param_escape(note);
} else {
query = query + "&note=undefined";
}
if (!img) return;
if (img.src.match("pub_unset") || note != undefined) {
img.src = img.src.replace("pub_unset", "pub_set");
img.alt = __("Unpublish article");
query = query + "&pub=1";
} else {
img.src = img.src.replace("pub_set", "pub_unset");
img.alt = __("Publish article");
query = query + "&pub=0";
}
new Ajax.Request("backend.php", {
parameters: query,
onComplete: function(transport) {
update();
} });
} catch (e) {
exception_error("toggle_pub", e);
}
}
function fatal_error(code, msg) {
try {
if (code == 6) {
window.location.href = "digest.php";
} else if (code == 5) {
window.location.href = "db-updater.php";
} else {
if (msg == "") msg = "Unknown error";
console.error("Fatal error: " + code + "\n" +
msg);
}
} catch (e) {
exception_error("fatalError", e);
}
}
function fatal_error_check(transport) {
try {
if (transport.responseXML) {
var error = transport.responseXML.getElementsByTagName("error")[0];
if (error) {
var code = error.getAttribute("error-code");
var msg = error.getAttribute("error-msg");
if (code != 0) {
fatal_error(code, msg);
return false;
}
}
}
} catch (e) {
exception_error("fatal_error_check", e);
}
return true;
}
function feed_mi(elem) {
try {
var imgs = elem.getElementsByTagName('IMG');
var spans = elem.getElementsByTagName('SPAN');
for (var i = 0; i < imgs.length; i++) {
if (imgs[i].className == "dismiss")
Element.show(imgs[i]);
}
for (var i = 0; i < spans.length; i++) {
if (spans[i].className == "unread")
Element.hide(spans[i]);
}
} catch (e) {
exception_error("feed_mi", e);
}
}
function feed_mo(elem) {
try {
var imgs = elem.getElementsByTagName('IMG');
var spans = elem.getElementsByTagName('SPAN');
for (var i = 0; i < imgs.length; i++) {
if (imgs[i].className == "dismiss")
Element.hide(imgs[i]);
}
for (var i = 0; i < spans.length; i++) {
if (spans[i].className == "unread")
Element.show(spans[i]);
}
} catch (e) {
exception_error("feed_mo", e);
}
}
function update_title(unread) {
try {
document.title = "Tiny Tiny RSS";
if (unread > 0)
document.title += " (" + unread + ")";
} catch (e) {
exception_error("update_title", e);
}
}