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viewfeed.js
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viewfeed.js
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var active_post_id = false;
var last_article_view = false;
var active_real_feed_id = false;
// FIXME: kludges, needs proper implementation
var _reload_feedlist_after_view = false;
var _cdm_wd_timeout = false;
var _cdm_wd_vishist = new Array();
var article_cache = new Array();
var vgroup_last_feed = false;
var post_under_pointer = false;
var last_requested_article = false;
function catchup_callback2(transport, callback) {
try {
debug("catchup_callback2 " + transport + ", " + callback);
notify("");
all_counters_callback2(transport);
if (callback) {
setTimeout(callback, 10);
}
} catch (e) {
exception_error("catchup_callback2", e, transport);
}
}
function clean_feed_selections() {
try {
var feeds = $("feedList").getElementsByTagName("LI");
for (var i = 0; i < feeds.length; i++) {
if (feeds[i].id && feeds[i].id.match("FEEDR-")) {
feeds[i].className = feeds[i].className.replace("Selected", "");
}
if (feeds[i].id && feeds[i].id.match("FCAT-")) {
feeds[i].className = feeds[i].className.replace("Selected", "");
}
}
} catch (e) {
exception_error("clean_feed_selections", e);
}
}
function headlines_callback2(transport, feed_cur_page) {
try {
if (!transport.responseText && db) {
offlineConfirmModeChange();
return;
}
loading_set_progress(100);
debug("headlines_callback2 [page=" + feed_cur_page + "]");
if (!transport_error_check(transport)) return;
clean_feed_selections();
var is_cat = false;
var feed_id = false;
if (transport.responseXML) {
var headlines = transport.responseXML.getElementsByTagName("headlines")[0];
if (headlines) {
is_cat = headlines.getAttribute("is_cat");
feed_id = headlines.getAttribute("id");
setActiveFeedId(feed_id, is_cat);
}
}
var ll = $('FLL-' + feed_id);
if (!is_cat) {
var feedr = $("FEEDR-" + feed_id);
if (feedr && !feedr.className.match("Selected")) {
feedr.className = feedr.className + "Selected";
}
if (feedr && ll) feedr.removeChild(ll);
} else {
var feedr = $("FCAT-" + feed_id);
if (feedr && !feedr.className.match("Selected")) {
feedr.className = feedr.className + "Selected";
}
var fcap = $("FCAP-" + feed_id);
if (fcap && ll) fcap.removeChild(ll);
}
var img = $('FIMG-' + feed_id);
if (img && !is_cat) {
img.src = img.alt;
}
var f = $("headlines-frame");
try {
if (feed_cur_page == 0) {
debug("resetting headlines scrollTop");
f.scrollTop = 0;
}
} catch (e) { };
if (transport.responseXML) {
var headlines = transport.responseXML.getElementsByTagName("headlines")[0];
var headlines_count_obj = transport.responseXML.getElementsByTagName("headlines-count")[0];
var headlines_unread_obj = transport.responseXML.getElementsByTagName("headlines-unread")[0];
var disable_cache_obj = transport.responseXML.getElementsByTagName("disable-cache")[0];
var vgroup_last_feed_obj = transport.responseXML.getElementsByTagName("vgroup-last-feed")[0];
var headlines_count = headlines_count_obj.getAttribute("value");
var headlines_unread = headlines_unread_obj.getAttribute("value");
var disable_cache = disable_cache_obj.getAttribute("value") != "0";
vgroup_last_feed = vgroup_last_feed_obj.getAttribute("value");
if (headlines_count == 0) {
_infscroll_disable = 1;
} else {
_infscroll_disable = 0;
}
var counters = transport.responseXML.getElementsByTagName("counters")[0];
var articles = transport.responseXML.getElementsByTagName("article");
var runtime_info = transport.responseXML.getElementsByTagName("runtime-info");
if (feed_cur_page == 0) {
if (headlines) {
f.innerHTML = headlines.firstChild.nodeValue;
var cache_prefix = "";
if (is_cat) {
cache_prefix = "C:";
} else {
cache_prefix = "F:";
}
cache_invalidate(cache_prefix + feed_id);
if (!disable_cache) {
cache_inject(cache_prefix + feed_id,
headlines.firstChild.nodeValue, headlines_unread);
}
} else {
debug("headlines_callback: returned no data");
f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML data)') + "</div>";
}
} else {
if (headlines) {
if (headlines_count > 0) {
debug("adding some more headlines...");
var c = $("headlinesList");
if (!c) {
c = $("headlinesInnerContainer");
}
var ids = getSelectedArticleIds2();
c.innerHTML = c.innerHTML + headlines.firstChild.nodeValue;
debug("restore selected ids: " + ids);
for (var i = 0; i < ids.length; i++) {
markHeadline(ids[i]);
}
} else {
debug("no new headlines received");
}
} else {
debug("headlines_callback: returned no data");
notify_error("Error while trying to load more headlines");
}
}
if (articles) {
for (var i = 0; i < articles.length; i++) {
var a_id = articles[i].getAttribute("id");
debug("found id: " + a_id);
cache_inject(a_id, articles[i].firstChild.nodeValue);
}
} else {
debug("no cached articles received");
}
if (counters) {
debug("parsing piggybacked counters: " + counters);
parse_counters(counters, false);
} else {
debug("counters container not found in reply, requesting...");
request_counters();
}
if (runtime_info) {
debug("parsing runtime info: " + runtime_info[0]);
parse_runtime_info(runtime_info[0]);
} else {
debug("counters container not found in reply");
}
} else {
debug("headlines_callback: returned no XML object");
f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML object)') + "</div>";
}
if (typeof correctPNG != 'undefined') {
correctPNG();
}
if (_cdm_wd_timeout) window.clearTimeout(_cdm_wd_timeout);
if (!$("headlinesList") &&
getActiveFeedId() != -3 &&
getInitParam("cdm_auto_catchup") == 1) {
debug("starting CDM watchdog");
_cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 5000);
_cdm_wd_vishist = new Array();
} else {
debug("not in CDM mode or watchdog disabled");
}
_feed_cur_page = feed_cur_page;
_infscroll_request_sent = 0;
notify("");
remove_splash();
} catch (e) {
exception_error("headlines_callback2", e, transport);
}
}
function render_article(article) {
try {
var f = $("content-frame");
try {
f.scrollTop = 0;
} catch (e) { };
var fi = $("content-insert");
try {
fi.scrollTop = 0;
} catch (e) { };
fi.innerHTML = article;
// article.evalScripts();
} catch (e) {
exception_error("render_article", e);
}
}
function showArticleInHeadlines(id) {
try {
cleanSelected("headlinesList");
var crow = $("RROW-" + id);
if (!crow) return;
var article_is_unread = crow.className.match("Unread");
crow.className = crow.className.replace("Unread", "");
selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
var upd_img_pic = $("FUPDPIC-" + id);
var cache_prefix = "";
if (activeFeedIsCat()) {
cache_prefix = "C:";
} else {
cache_prefix = "F:";
}
var view_mode = false;
try {
view_mode = document.forms['main_toolbar_form'].view_mode;
view_mode = view_mode[view_mode.selectedIndex].value;
} catch (e) {
//
}
if (upd_img_pic && (upd_img_pic.src.match("updated.png") ||
upd_img_pic.src.match("fresh_sign.png"))) {
upd_img_pic.src = "images/blank_icon.gif";
cache_invalidate(cache_prefix + getActiveFeedId());
cache_inject(cache_prefix + getActiveFeedId(),
$("headlines-frame").innerHTML,
get_feed_unread(getActiveFeedId()));
} else if (article_is_unread && view_mode == "all_articles") {
cache_invalidate(cache_prefix + getActiveFeedId());
cache_inject(cache_prefix + getActiveFeedId(),
$("headlines-frame").innerHTML,
get_feed_unread(getActiveFeedId())-1);
} else if (article_is_unread) {
cache_invalidate(cache_prefix + getActiveFeedId());
}
markHeadline(id);
} catch (e) {
exception_error("showArticleInHeadlines", e);
}
}
function article_callback2(transport, id) {
try {
debug("article_callback2 " + id);
if (!transport.responseText && db) {
offlineConfirmModeChange();
return;
}
if (transport.responseXML) {
if (!transport_error_check(transport)) return;
/* var ll = $('LL-' + id);
var content = $('HLC-' + id);
if (ll && content) content.removeChild(ll); */
var upic = $('FUPDPIC-' + id);
if (upic) {
upic.src = 'images/blank_icon.gif';
}
if (id != last_requested_article) {
debug("requested article id is out of sequence, aborting");
return;
}
active_post_id = id;
debug("looking for articles to cache...");
var articles = transport.responseXML.getElementsByTagName("article");
for (var i = 0; i < articles.length; i++) {
var a_id = articles[i].getAttribute("id");
debug("found id: " + a_id);
if (a_id == active_post_id) {
debug("active article, rendering...");
render_article(articles[i].firstChild.nodeValue);
}
cache_inject(a_id, articles[i].firstChild.nodeValue);
}
showArticleInHeadlines(id);
if (db) {
db.execute("UPDATE articles SET unread = 0 WHERE id = ?", [id]);
}
var reply = transport.responseXML.firstChild.firstChild;
} else {
debug("article_callback: returned no XML object");
//var f = $("content-frame");
//f.innerHTML = "<div class='whiteBox'>" + __('Could not display article (missing XML object)') + "</div>";
}
var date = new Date();
last_article_view = date.getTime() / 1000;
if (typeof correctPNG != 'undefined') {
correctPNG();
}
if (_reload_feedlist_after_view) {
setTimeout('updateFeedList(false, false)', 50);
_reload_feedlist_after_view = false;
} else {
if (transport.responseXML) {
var counters = transport.responseXML.getElementsByTagName("counters")[0];
if (counters) {
debug("parsing piggybacked counters: " + counters);
parse_counters(counters, false);
} else {
debug("counters container not found in reply, requesting...");
request_counters();
}
}
}
notify("");
} catch (e) {
exception_error("article_callback2", e, transport);
}
}
function view(id) {
try {
debug("loading article: " + id);
if (offline_mode) return view_offline(id);
var cached_article = cache_find(id);
debug("cache check result: " + (cached_article != false));
enableHotkeys();
hideAuxDlg();
var query = "?op=view&id=" + param_escape(id);
var neighbor_ids = getRelativePostIds(active_post_id);
/* only request uncached articles */
var cids_to_request = Array();
for (var i = 0; i < neighbor_ids.length; i++) {
if (!cache_check(neighbor_ids[i])) {
cids_to_request.push(neighbor_ids[i]);
}
}
debug("additional ids: " + cids_to_request.toString());
/* additional info for piggyback counters */
if (tagsAreDisplayed()) {
query = query + "&omode=lt";
} else {
query = query + "&omode=flc";
}
query = query + "&cids=" + cids_to_request.toString();
var crow = $("RROW-" + id);
var article_is_unread = crow.className.match("Unread");
if (!async_counters_work) {
query = query + "&csync=true";
}
showArticleInHeadlines(id);
if (!cached_article) {
var upic = $('FUPDPIC-' + id);
if (upic) {
upic.src = getInitParam("sign_progress");
}
} else if (cached_article && article_is_unread) {
query = query + "&mode=prefetch";
render_article(cached_article);
} else if (cached_article) {
query = query + "&mode=prefetch_old";
render_article(cached_article);
}
cache_expire();
last_requested_article = id;
new Ajax.Request("backend.php", {
parameters: query,
onComplete: function(transport) {
article_callback2(transport, id);
} });
return false;
} catch (e) {
exception_error("view", e);
}
}
function tMark(id) {
return toggleMark(id);
}
function tPub(id) {
return togglePub(id);
}
function tMark_afh_off(effect) {
try {
var elem = effect.effects[0].element;
debug("tMark_afh_off : " + elem.id);
if (elem) {
elem.src = elem.src.replace("mark_set", "mark_unset");
elem.alt = __("Star article");
Element.show(elem);
}
} catch (e) {
exception_error("tMark_afh_off", e);
}
}
function tPub_afh_off(effect) {
try {
var elem = effect.effects[0].element;
debug("tPub_afh_off : " + elem.id);
if (elem) {
elem.src = elem.src.replace("pub_set", "pub_unset");
elem.alt = __("Publish article");
Element.show(elem);
}
} catch (e) {
exception_error("tPub_afh_off", e);
}
}
function toggleMark(id, client_only, no_effects) {
try {
var query = "?op=rpc&id=" + id + "&subop=mark";
query = query + "&afid=" + getActiveFeedId();
if (tagsAreDisplayed()) {
query = query + "&omode=tl";
} else {
query = query + "&omode=flc";
}
var mark_img = $("FMPIC-" + id);
if (!mark_img) return;
var vfeedu = $("FEEDU--1");
var crow = $("RROW-" + id);
if (mark_img.src.match("mark_unset")) {
mark_img.src = mark_img.src.replace("mark_unset", "mark_set");
mark_img.alt = __("Unstar article");
query = query + "&mark=1";
if (db) {
db.execute("UPDATE articles SET marked = 1 WHERE id = ?", [id]);
}
} else {
mark_img.alt = __("Please wait...");
query = query + "&mark=0";
if ($("headlinesList") && !no_effects) {
Effect.Puff(mark_img, {duration : 0.25, afterFinish: tMark_afh_off});
} else {
mark_img.src = mark_img.src.replace("mark_set", "mark_unset");
mark_img.alt = __("Star article");
}
if (db) {
db.execute("UPDATE articles SET marked = 0 WHERE id = ?", [id]);
}
}
if (!no_effects) update_local_feedlist_counters();
if (!client_only) {
debug(query);
new Ajax.Request("backend.php", {
parameters: query,
onComplete: function(transport) {
all_counters_callback2(transport);
} });
}
} catch (e) {
exception_error("toggleMark", e);
}
}
function togglePub(id, client_only, no_effects, note) {
try {
var query = "?op=rpc&id=" + id + "&subop=publ";
query = query + "&afid=" + getActiveFeedId();
if (note != undefined) {
query = query + "¬e=" + param_escape(note);
} else {
query = query + "¬e=undefined";
}
if (tagsAreDisplayed()) {
query = query + "&omode=tl";
} else {
query = query + "&omode=flc";
}
var mark_img = $("FPPIC-" + id);
if (!mark_img) return;
var vfeedu = $("FEEDU--2");
var crow = $("RROW-" + id);
if (mark_img.src.match("pub_unset") || note != undefined) {
mark_img.src = mark_img.src.replace("pub_unset", "pub_set");
mark_img.alt = __("Unpublish article");
query = query + "&pub=1";
} else {
mark_img.alt = __("Please wait...");
query = query + "&pub=0";
if ($("headlinesList") && !no_effects) {
Effect.Puff(mark_img, {duration : 0.25, afterFinish: tPub_afh_off});
} else {
mark_img.src = mark_img.src.replace("pub_set", "pub_unset");
mark_img.alt = __("Publish article");
}
}
if (!client_only) {
new Ajax.Request("backend.php", {
parameters: query,
onComplete: function(transport) {
all_counters_callback2(transport);
var note = transport.responseXML.getElementsByTagName("note")[0];
if (note) {
var note_id = note.getAttribute("id");
var note_size = note.getAttribute("size");
var note_content = note.firstChild.nodeValue;
var container = $('POSTNOTE-' + note_id);
cache_invalidate(note_id);
if (container) {
if (note_size == "0") {
Element.hide(container);
} else {
container.innerHTML = note_content;
Element.show(container);
}
}
}
} });
}
} catch (e) {
exception_error("togglePub", e);
}
}
function correctHeadlinesOffset(id) {
try {
var hlist = $("headlinesList");
var container = $("headlinesInnerContainer");
var row = $("RROW-" + id);
var viewport = container.offsetHeight;
var rel_offset_top = row.offsetTop - container.scrollTop;
var rel_offset_bottom = row.offsetTop + row.offsetHeight - container.scrollTop;
debug("Rtop: " + rel_offset_top + " Rbtm: " + rel_offset_bottom);
debug("Vport: " + viewport);
if (rel_offset_top <= 0 || rel_offset_top > viewport) {
container.scrollTop = row.offsetTop;
} else if (rel_offset_bottom > viewport) {
/* doesn't properly work with Opera in some cases because
Opera fucks up element scrolling */
container.scrollTop = row.offsetTop + row.offsetHeight - viewport;
}
} catch (e) {
exception_error("correctHeadlinesOffset", e);
}
}
function moveToPost(mode) {
try {
var rows;
if (isCdmMode()) {
rows = cdmGetVisibleArticles();
} else {
rows = getVisibleHeadlineIds();
}
var prev_id = false;
var next_id = false;
if (!$('RROW-' + active_post_id)) {
active_post_id = false;
}
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) {
if (isCdmMode()) {
if (!cdmArticleIsActuallyVisible(next_id)) {
cdmScrollToArticleId(next_id);
}
cdmSelectArticles("none");
toggleUnread(next_id, 0, true);
toggleSelected(next_id);
} else {
correctHeadlinesOffset(next_id);
view(next_id, getActiveFeedId());
}
}
}
if (mode == "prev") {
if (prev_id) {
if (isCdmMode()) {
cdmScrollToArticleId(prev_id);
cdmSelectArticles("none");
toggleUnread(prev_id, 0, true);
toggleSelected(prev_id);
} else {
correctHeadlinesOffset(prev_id);
view(prev_id, getActiveFeedId());
}
}
}
} catch (e) {
exception_error("moveToPost", e);
}
}
function toggleSelected(id) {
try {
var cb = $("RCHK-" + id);
var row = $("RROW-" + id);
if (row) {
var nc = row.className;
if (!nc.match("Selected")) {
nc = nc + "Selected";
if (cb) {
cb.checked = true;
}
// In CDM basically last selected article == active article
if (isCdmMode()) active_post_id = id;
} else {
nc = nc.replace("Selected", "");
if (cb) {
cb.checked = false;
}
}
row.className = nc;
}
} catch (e) {
exception_error("toggleSelected", e);
}
}
function toggleUnread_afh(effect) {
try {
var elem = effect.element;
elem.style.backgroundColor = "";
} catch (e) {
exception_error("toggleUnread_afh", e);
}
}
function toggleUnread(id, cmode, effect) {
try {
var row = $("RROW-" + id);
if (row) {
var nc = row.className;
var is_selected = row.className.match("Selected");
nc = nc.replace("Unread", "");
nc = nc.replace("Selected", "");
// since we are removing selection from the object, uncheck
// corresponding checkbox
var cb = $("RCHK-" + id);
if (cb) {
cb.checked = false;
}
// NOTE: I'm not sure that resetting selection here is a feature -fox
if (cmode == undefined || cmode == 2) {
if (row.className.match("Unread")) {
row.className = nc;
if (effect) {
new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
afterFinish: toggleUnread_afh,
queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
}
} else {
row.className = nc + "Unread";
}
if (db) {
db.execute("UPDATE articles SET unread = not unread "+
"WHERE id = ?", [id]);
}
} else if (cmode == 0) {
row.className = nc;
if (effect) {
new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
afterFinish: toggleUnread_afh,
queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
}
if (db) {
db.execute("UPDATE articles SET unread = 0 "+
"WHERE id = ?", [id]);
}
} else if (cmode == 1) {
row.className = nc + "Unread";
if (db) {
db.execute("UPDATE articles SET unread = 1 "+
"WHERE id = ?", [id]);
}
}
update_local_feedlist_counters();
// Disable unmarking as selected for the time being (16.05.08) -fox
if (is_selected) row.className = row.className + "Selected";
if (cmode == undefined) cmode = 2;
var query = "?op=rpc&subop=catchupSelected" +
"&cmode=" + param_escape(cmode) + "&ids=" + param_escape(id);
// notify_progress("Loading, please wait...");
new Ajax.Request("backend.php", {
parameters: query,
onComplete: function(transport) {
all_counters_callback2(transport);
} });
}
} catch (e) {
exception_error("toggleUnread", e);
}
}
function selectionRemoveLabel(id) {
try {
var ids = getSelectedArticleIds2();
if (ids.length == 0) {
alert(__("No articles are selected."));
return;
}
// var ok = confirm(__("Remove selected articles from label?"));
// if (ok) {
var query = "?op=rpc&subop=removeFromLabel&ids=" +
param_escape(ids.toString()) + "&lid=" + param_escape(id);
// notify_progress("Loading, please wait...");
cache_invalidate("F:" + (-11 - id));
new Ajax.Request("backend.php", {
parameters: query,
onComplete: function(transport) {
show_labels_in_headlines(transport);
all_counters_callback2(transport);
} });
// }
} catch (e) {
exception_error("selectionAssignLabel", e);
}
}
function selectionAssignLabel(id) {
try {
var ids = getSelectedArticleIds2();
if (ids.length == 0) {
alert(__("No articles are selected."));
return;
}
// var ok = confirm(__("Assign selected articles to label?"));
// if (ok) {
cache_invalidate("F:" + (-11 - id));
var query = "?op=rpc&subop=assignToLabel&ids=" +
param_escape(ids.toString()) + "&lid=" + param_escape(id);
// notify_progress("Loading, please wait...");
new Ajax.Request("backend.php", {
parameters: query,
onComplete: function(transport) {
show_labels_in_headlines(transport);
all_counters_callback2(transport);
} });
// }
} catch (e) {
exception_error("selectionAssignLabel", e);
}
}