var active_post_id = false; var _catchup_callback_func = false; var last_article_view = false; var active_real_feed_id = false; var _tag_active_post_id = false; var _tag_active_feed_id = false; var _tag_active_cdm = false; // FIXME: kludge, to restore scrollTop after tag editor terminates var _tag_cdm_scroll = 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(); function catchup_callback() { if (xmlhttp_rpc.readyState == 4) { try { debug("catchup_callback"); if (_catchup_callback_func) { setTimeout(_catchup_callback_func, 100); } notify(""); all_counters_callback(); } catch (e) { exception_error("catchup_callback", e); } } } function headlines_callback() { if (xmlhttp.readyState == 4) { debug("headlines_callback"); var f = document.getElementById("headlines-frame"); try { f.scrollTop = 0; } catch (e) { }; if (xmlhttp.responseXML) { var headlines = xmlhttp.responseXML.getElementsByTagName("headlines")[0]; var counters = xmlhttp.responseXML.getElementsByTagName("counters")[0]; var articles = xmlhttp.responseXML.getElementsByTagName("article"); if (headlines) { f.innerHTML = headlines.firstChild.nodeValue; } else { debug("headlines_callback: returned no data"); f.innerHTML = "
" + __('Could not update headlines (missing XML data)') + "
"; } 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"); } } else { debug("headlines_callback: returned no XML object"); f.innerHTML = "
" + __('Could not update headlines (missing XML object)') + "
"; } if (typeof correctPNG != 'undefined') { correctPNG(); } if (_cdm_wd_timeout) window.clearTimeout(_cdm_wd_timeout); if (!document.getElementById("headlinesList") && 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"); } if (_tag_cdm_scroll) { try { document.getElementById("headlinesInnerContainer").scrollTop = _tag_cdm_scroll; _tag_cdm_scroll = false; } catch (e) { } } notify(""); } } function render_article(article) { try { var f = document.getElementById("content-frame"); try { f.scrollTop = 0; } catch (e) { }; f.innerHTML = article; } catch (e) { exception_error("render_article", e); } } function article_callback() { if (xmlhttp.readyState == 4) { debug("article_callback"); try { if (xmlhttp.responseXML) { var reply = xmlhttp.responseXML.firstChild.firstChild; var articles = xmlhttp.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); } } else { debug("article_callback: returned no XML object"); var f = document.getElementById("content-frame"); f.innerHTML = "
" + __('Could not display article (missing XML object)') + "
"; } } catch (e) { exception_error("article_callback", e); } 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 { var counters = xmlhttp.responseXML.getElementsByTagName("counters")[0]; if (counters) { debug("parsing piggybacked counters: " + counters); parse_counters(counters, false); } else { debug("counters container not found in reply"); } } notify(""); } } function view(id, feed_id, skip_history) { try { debug("loading article: " + id + "/" + feed_id); active_real_feed_id = feed_id; var cached_article = cache_find(id); debug("cache check result: " + (cached_article != false)); /* if (!skip_history) { history_push("ARTICLE:" + id + ":" + feed_id); } */ enableHotkeys(); //setActiveFeedId(feed_id); var query = "backend.php?op=view&id=" + param_escape(id) + "&feed=" + param_escape(feed_id); var date = new Date(); if (!xmlhttp_ready(xmlhttp) && last_article_view < date.getTime() / 1000 - 15) { debug("xmlhttp seems to be stuck at view, aborting"); xmlhttp.abort(); } if (xmlhttp_ready(xmlhttp)) { active_post_id = id; cleanSelected("headlinesList"); var crow = document.getElementById("RROW-" + active_post_id); var article_is_unread = crow.className.match("Unread"); debug("article is unread: " + article_is_unread); crow.className = crow.className.replace("Unread", ""); var upd_img_pic = document.getElementById("FUPDPIC-" + active_post_id); if (upd_img_pic) { upd_img_pic.src = "images/blank_icon.gif"; } selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false); markHeadline(active_post_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"; } var date = new Date(); var timestamp = Math.round(date.getTime() / 1000); query = query + "&ts=" + timestamp; query = query + "&cids=" + cids_to_request.toString(); if (!cached_article) { notify_progress("Loading, please wait..."); debug(query); xmlhttp.open("GET", query, true); xmlhttp.onreadystatechange=article_callback; xmlhttp.send(null); } else if (cached_article && article_is_unread) { query = query + "&mode=prefetch"; debug(query); xmlhttp.open("GET", query, true); xmlhttp.onreadystatechange=article_callback; xmlhttp.send(null); render_article(cached_article); } else if (cached_article) { query = query + "&mode=prefetch_old"; debug(query); xmlhttp.open("GET", query, true); xmlhttp.onreadystatechange=article_callback; xmlhttp.send(null); render_article(cached_article); } cache_expire(); } else { debug("xmlhttp busy (@view)"); printLockingError(); } } catch (e) { exception_error("view", e); } } function tMark(id) { return toggleMark(id); } function toggleMark(id) { if (!xmlhttp_ready(xmlhttp_rpc)) { printLockingError(); return; } var query = "backend.php?op=rpc&id=" + id + "&subop=mark"; var mark_img = document.getElementById("FMPIC-" + id); var vfeedu = document.getElementById("FEEDU--1"); var crow = document.getElementById("RROW-" + id); if (mark_img.alt != "Reset mark") { mark_img.src = "images/mark_set.png"; mark_img.alt = "Reset mark"; query = query + "&mark=1"; if (vfeedu && crow.className.match("Unread")) { vfeedu.innerHTML = (+vfeedu.innerHTML) + 1; } } else { mark_img.src = "images/mark_unset.png"; mark_img.alt = "Set mark"; query = query + "&mark=0"; if (vfeedu && crow.className.match("Unread")) { vfeedu.innerHTML = (+vfeedu.innerHTML) - 1; } } var vfeedctr = document.getElementById("FEEDCTR--1"); var vfeedr = document.getElementById("FEEDR--1"); if (vfeedu && vfeedctr) { if ((+vfeedu.innerHTML) > 0) { if (crow.className.match("Unread") && !vfeedr.className.match("Unread")) { vfeedr.className = vfeedr.className + "Unread"; vfeedctr.className = "odd"; } } else { vfeedctr.className = "invisible"; vfeedr.className = vfeedr.className.replace("Unread", ""); } } debug("toggle starred for aid " + id); new Ajax.Request(query); } function correctHeadlinesOffset(id) { try { var hlist = document.getElementById("headlinesList"); var container = document.getElementById("headlinesInnerContainer"); var row = document.getElementById("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) { // check for combined mode if (!document.getElementById("headlinesList")) return; var rows = getVisibleHeadlineIds(); var prev_id = false; var next_id = false; if (!document.getElementById('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) { correctHeadlinesOffset(next_id); view(next_id, getActiveFeedId()); } } if (mode == "prev") { if (prev_id) { correctHeadlinesOffset(prev_id); view(prev_id, getActiveFeedId()); } } } function toggleUnread(id, cmode) { try { if (!xmlhttp_ready(xmlhttp_rpc)) { printLockingError(); return; } var row = document.getElementById("RROW-" + id); if (row) { var nc = row.className; nc = nc.replace("Unread", ""); nc = nc.replace("Selected", ""); if (row.className.match("Unread")) { row.className = nc; } else { row.className = nc + "Unread"; } if (!cmode) cmode = 2; var query = "backend.php?op=rpc&subop=catchupSelected&ids=" + param_escape(id) + "&cmode=" + param_escape(cmode); notify_progress("Loading, please wait..."); xmlhttp_rpc.open("GET", query, true); xmlhttp_rpc.onreadystatechange=all_counters_callback; xmlhttp_rpc.send(null); } } catch (e) { exception_error("toggleUnread", e); } } function selectionToggleUnread(cdm_mode, set_state, callback_func, no_error) { try { if (!xmlhttp_ready(xmlhttp_rpc)) { printLockingError(); return; } var rows; if (cdm_mode) { rows = cdmGetSelectedArticles(); } else { rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK"); } if (rows.length == 0 && !no_error) { alert(__("No articles are selected.")); return; } for (i = 0; i < rows.length; i++) { var row = document.getElementById("RROW-" + rows[i]); if (row) { var nc = row.className; nc = nc.replace("Unread", ""); nc = nc.replace("Selected", ""); if (row.className.match("Unread")) { row.className = nc + "Selected"; } else { row.className = nc + "UnreadSelected"; } } } if (rows.length > 0) { var cmode = ""; if (set_state == undefined) { cmode = "2"; } else if (set_state == true) { cmode = "1"; } else if (set_state == false) { cmode = "0"; } var query = "backend.php?op=rpc&subop=catchupSelected&ids=" + param_escape(rows.toString()) + "&cmode=" + cmode; _catchup_callback_func = callback_func; notify_progress("Loading, please wait..."); xmlhttp_rpc.open("GET", query, true); xmlhttp_rpc.onreadystatechange=catchup_callback; xmlhttp_rpc.send(null); } } catch (e) { exception_error("selectionToggleUnread", e); } } function selectionToggleMarked(cdm_mode) { try { if (!xmlhttp_ready(xmlhttp_rpc)) { printLockingError(); return; } var rows; if (cdm_mode) { rows = cdmGetSelectedArticles(); } else { rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK"); } if (rows.length == 0) { alert(__("No articles are selected.")); return; } for (i = 0; i < rows.length; i++) { var row = document.getElementById("RROW-" + rows[i]); var mark_img = document.getElementById("FMARKPIC-" + rows[i]); if (row && mark_img) { if (mark_img.alt == "Set mark") { mark_img.src = "images/mark_set.png"; mark_img.alt = "Reset mark"; mark_img.setAttribute('onclick', 'javascript:toggleMark('+rows[i]+', false)'); } else { mark_img.src = "images/mark_unset.png"; mark_img.alt = "Set mark"; mark_img.setAttribute('onclick', 'javascript:toggleMark('+rows[i]+', true)'); } } } if (rows.length > 0) { var query = "backend.php?op=rpc&subop=markSelected&ids=" + param_escape(rows.toString()) + "&cmode=2"; xmlhttp_rpc.open("GET", query, true); xmlhttp_rpc.onreadystatechange=all_counters_callback; xmlhttp_rpc.send(null); } } catch (e) { exception_error("selectionToggleMarked", e); } } function cdmGetSelectedArticles() { var sel_articles = new Array(); var container = document.getElementById("headlinesInnerContainer"); for (i = 0; i < container.childNodes.length; i++) { var child = container.childNodes[i]; if (child.id.match("RROW-") && child.className.match("Selected")) { var c_id = child.id.replace("RROW-", ""); sel_articles.push(c_id); } } return sel_articles; } // mode = all,none,unread function cdmSelectArticles(mode) { var container = document.getElementById("headlinesInnerContainer"); for (i = 0; i < container.childNodes.length; i++) { var child = container.childNodes[i]; if (child.id.match("RROW-")) { var aid = child.id.replace("RROW-", ""); var cb = document.getElementById("RCHK-" + aid); if (mode == "all") { if (!child.className.match("Selected")) { child.className = child.className + "Selected"; cb.checked = true; } } else if (mode == "unread") { if (child.className.match("Unread") && !child.className.match("Selected")) { child.className = child.className + "Selected"; cb.checked = true; } } else { child.className = child.className.replace("Selected", ""); cb.checked = false; } } } } function catchupPage() { if (document.getElementById("headlinesList")) { selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true); selectionToggleUnread(false, false, 'viewCurrentFeed()', true); selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false); } else { cdmSelectArticles('all'); selectionToggleUnread(true, false, 'viewCurrentFeed()', true) cdmSelectArticles('none'); } } function labelFromSearch(search, search_mode, match_on, feed_id, is_cat) { if (!xmlhttp_ready(xmlhttp_rpc)) { printLockingError(); } var title = prompt("Please enter label title:", ""); if (title) { var query = "backend.php?op=labelFromSearch&search=" + param_escape(search) + "&smode=" + param_escape(search_mode) + "&match=" + param_escape(match_on) + "&feed=" + param_escape(feed_id) + "&is_cat=" + param_escape(is_cat) + "&title=" + param_escape(title); debug("LFS: " + query); xmlhttp_rpc.open("GET", query, true); xmlhttp_rpc.onreadystatechange=dlg_frefresh_callback; xmlhttp_rpc.send(null); } } function editArticleTags(id, feed_id, cdm_enabled) { _tag_active_post_id = id; _tag_active_feed_id = feed_id; _tag_active_cdm = cdm_enabled; cache_invalidate(id); try { _tag_cdm_scroll = document.getElementById("headlinesInnerContainer").scrollTop; } catch (e) { } displayDlg('editArticleTags', id); } function tag_saved_callback() { if (xmlhttp_rpc.readyState == 4) { try { debug("in tag_saved_callback"); closeInfoBox(); notify(""); if (tagsAreDisplayed()) { _reload_feedlist_after_view = true; } if (!_tag_active_cdm) { if (active_post_id == _tag_active_post_id) { debug("reloading current article"); view(_tag_active_post_id, _tag_active_feed_id); } } else { debug("reloading current feed"); viewCurrentFeed(); } } catch (e) { exception_error("catchup_callback", e); } } } function editTagsSave() { if (!xmlhttp_ready(xmlhttp_rpc)) { printLockingError(); } notify_progress("Saving article tags..."); var form = document.forms["tag_edit_form"]; var query = Form.serialize("tag_edit_form"); xmlhttp_rpc.open("GET", "backend.php?op=rpc&subop=setArticleTags&" + query, true); xmlhttp_rpc.onreadystatechange=tag_saved_callback; xmlhttp_rpc.send(null); } function editTagsInsert() { try { var form = document.forms["tag_edit_form"]; var found_tags = form.found_tags; var tags_str = form.tags_str; var tag = found_tags[found_tags.selectedIndex].value; if (tags_str.value.length > 0 && tags_str.value.lastIndexOf(", ") != tags_str.value.length - 2) { tags_str.value = tags_str.value + ", "; } tags_str.value = tags_str.value + tag + ", "; found_tags.selectedIndex = 0; } catch (e) { exception_error(e, "editTagsInsert"); } } function cdmWatchdog() { try { var ctr = document.getElementById("headlinesInnerContainer"); if (!ctr) return; var ids = new Array(); var e = ctr.firstChild; while (e) { if (e.className && e.className == "cdmArticleUnread" && e.id && e.id.match("RROW-")) { // article fits in viewport OR article is longer than viewport and // its bottom is visible if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) { // debug(e.id + " is visible " + e.offsetTop + "." + // (e.offsetTop + e.offsetHeight) + " vs " + ctr.scrollTop + "." + // (ctr.scrollTop + ctr.offsetHeight)); ids.push(e.id.replace("RROW-", "")); } else if (e.offsetHeight > ctr.offsetHeight && e.offsetTop + e.offsetHeight >= ctr.scrollTop && e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) { ids.push(e.id.replace("RROW-", "")); } // method 2: article bottom is visible and is in upper 1/2 of the viewport /* if (e.offsetTop + e.offsetHeight >= ctr.scrollTop && e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight/2) { ids.push(e.id.replace("RROW-", "")); } */ } e = e.nextSibling; } debug("cdmWatchdog, ids= " + ids.toString()); if (ids.length > 0 && xmlhttp_ready(xmlhttp_rpc)) { for (var i = 0; i < ids.length; i++) { var e = document.getElementById("RROW-" + ids[i]); if (e) { e.className = e.className.replace("Unread", ""); } } var query = "backend.php?op=rpc&subop=catchupSelected&ids=" + param_escape(ids.toString()) + "&cmode=0"; xmlhttp_rpc.open("GET", query, true); xmlhttp_rpc.onreadystatechange=all_counters_callback; xmlhttp_rpc.send(null); } _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 4000); } catch (e) { exception_error(e, "cdmWatchdog"); } } function cache_inject(id, article) { if (!cache_check(id)) { debug("cache_article: miss: " + id); var cache_obj = new Array(); cache_obj["id"] = id; cache_obj["data"] = article; article_cache.push(cache_obj); } else { debug("cache_article: hit: " + id); } } function cache_find(id) { for (var i = 0; i < article_cache.length; i++) { if (article_cache[i]["id"] == id) { return article_cache[i]["data"]; } } return false; } function cache_check(id) { for (var i = 0; i < article_cache.length; i++) { if (article_cache[i]["id"] == id) { return true; } } return false; } function cache_expire() { while (article_cache.length > 20) { article_cache.shift(); } } function cache_invalidate(id) { var i = 0 while (i < article_cache.length) { if (article_cache[i]["id"] == id) { article_cache.remove(i); return true; } i++; } return false; }