switch view() to async
This commit is contained in:
Andrew Dolgov
parent
1c9df66e41
commit
71d277deec
208
viewfeed.js
208
viewfeed.js
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@ -196,36 +196,58 @@ function render_article(article) {
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}
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}
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function article_callback() {
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if (xmlhttp.readyState == 4) {
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debug("article_callback");
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function showArticleInHeadlines(id) {
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try {
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if (xmlhttp.responseXML) {
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var reply = xmlhttp.responseXML.firstChild.firstChild;
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cleanSelected("headlinesList");
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var articles = xmlhttp.responseXML.getElementsByTagName("article");
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var crow = document.getElementById("RROW-" + id);
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var article_is_unread = crow.className.match("Unread");
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for (var i = 0; i < articles.length; i++) {
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var a_id = articles[i].getAttribute("id");
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crow.className = crow.className.replace("Unread", "");
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debug("found id: " + a_id);
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var upd_img_pic = document.getElementById("FUPDPIC-" + id);
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if (a_id == active_post_id) {
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debug("active article, rendering...");
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render_article(articles[i].firstChild.nodeValue);
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}
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if (upd_img_pic) {
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upd_img_pic.src = "images/blank_icon.gif";
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}
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cache_inject(a_id, articles[i].firstChild.nodeValue);
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selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
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markHeadline(id);
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}
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function article_callback2(transport, id, feed_id) {
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try {
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debug("article_callback2 " + id);
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if (transport.responseXML) {
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active_real_feed_id = feed_id;
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active_post_id = id;
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showArticleInHeadlines(id);
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var reply = transport.responseXML.firstChild.firstChild;
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var articles = transport.responseXML.getElementsByTagName("article");
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for (var i = 0; i < articles.length; i++) {
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var a_id = articles[i].getAttribute("id");
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debug("found id: " + a_id);
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if (a_id == active_post_id) {
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debug("active article, rendering...");
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render_article(articles[i].firstChild.nodeValue);
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}
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} else {
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debug("article_callback: returned no XML object");
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var f = document.getElementById("content-frame");
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f.innerHTML = "<div class='whiteBox'>" + __('Could not display article (missing XML object)') + "</div>";
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cache_inject(a_id, articles[i].firstChild.nodeValue);
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}
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} catch (e) {
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exception_error("article_callback", e);
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} else {
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debug("article_callback: returned no XML object");
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var f = document.getElementById("content-frame");
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f.innerHTML = "<div class='whiteBox'>" + __('Could not display article (missing XML object)') + "</div>";
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}
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var date = new Date();
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@ -239,7 +261,7 @@ function article_callback() {
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setTimeout('updateFeedList(false, false)', 50);
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_reload_feedlist_after_view = false;
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} else {
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var counters = xmlhttp.responseXML.getElementsByTagName("counters")[0];
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var counters = transport.responseXML.getElementsByTagName("counters")[0];
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if (counters) {
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debug("parsing piggybacked counters: " + counters);
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@ -250,6 +272,8 @@ function article_callback() {
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}
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notify("");
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} catch (e) {
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exception_error("article_callback2", e);
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}
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}
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@ -258,8 +282,6 @@ function view(id, feed_id, skip_history) {
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try {
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debug("loading article: " + id + "/" + feed_id);
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active_real_feed_id = feed_id;
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var cached_article = cache_find(id);
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debug("cache check result: " + (cached_article != false));
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@ -273,7 +295,7 @@ function view(id, feed_id, skip_history) {
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var date = new Date();
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if (!xmlhttp_ready(xmlhttp) && last_article_view < date.getTime() / 1000 - 15) {
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/* if (!xmlhttp_ready(xmlhttp) && last_article_view < date.getTime() / 1000 - 15) {
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debug("<b>xmlhttp seems to be stuck at view, aborting</b>");
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xmlhttp.abort();
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if (is_safari()) {
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@ -282,98 +304,64 @@ function view(id, feed_id, skip_history) {
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}
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}
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if (xmlhttp_ready(xmlhttp)) {
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if (xmlhttp_ready(xmlhttp)) { */
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active_post_id = id;
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var neighbor_ids = getRelativePostIds(active_post_id);
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cleanSelected("headlinesList");
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/* only request uncached articles */
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var crow = document.getElementById("RROW-" + active_post_id);
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var cids_to_request = Array();
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var article_is_unread = crow.className.match("Unread");
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debug("article is unread: " + article_is_unread);
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crow.className = crow.className.replace("Unread", "");
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var upd_img_pic = document.getElementById("FUPDPIC-" + active_post_id);
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if (upd_img_pic) {
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upd_img_pic.src = "images/blank_icon.gif";
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for (var i = 0; i < neighbor_ids.length; i++) {
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if (!cache_check(neighbor_ids[i])) {
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cids_to_request.push(neighbor_ids[i]);
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}
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selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
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markHeadline(active_post_id);
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var neighbor_ids = getRelativePostIds(active_post_id);
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/* only request uncached articles */
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var cids_to_request = Array();
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for (var i = 0; i < neighbor_ids.length; i++) {
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if (!cache_check(neighbor_ids[i])) {
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cids_to_request.push(neighbor_ids[i]);
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}
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}
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debug("additional ids: " + cids_to_request.toString());
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/* additional info for piggyback counters */
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if (tagsAreDisplayed()) {
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query = query + "&omode=lt";
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} else {
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query = query + "&omode=flc";
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}
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var date = new Date();
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var timestamp = Math.round(date.getTime() / 1000);
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query = query + "&ts=" + timestamp;
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query = query + "&cids=" + cids_to_request.toString();
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if (!cached_article) {
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notify_progress("Loading, please wait...");
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debug(query);
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xmlhttp.open("GET", query, true);
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xmlhttp.onreadystatechange=article_callback;
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xmlhttp.send(null);
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} else if (cached_article && article_is_unread) {
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query = query + "&mode=prefetch";
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debug(query);
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xmlhttp.open("GET", query, true);
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xmlhttp.onreadystatechange=article_callback;
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xmlhttp.send(null);
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render_article(cached_article);
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} else if (cached_article) {
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query = query + "&mode=prefetch_old";
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debug(query);
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xmlhttp.open("GET", query, true);
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xmlhttp.onreadystatechange=article_callback;
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xmlhttp.send(null);
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render_article(cached_article);
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}
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cache_expire();
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} else {
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debug("xmlhttp busy (@view)");
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printLockingError();
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}
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debug("additional ids: " + cids_to_request.toString());
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/* additional info for piggyback counters */
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if (tagsAreDisplayed()) {
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query = query + "&omode=lt";
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} else {
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query = query + "&omode=flc";
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}
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var date = new Date();
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var timestamp = Math.round(date.getTime() / 1000);
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query = query + "&ts=" + timestamp;
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query = query + "&cids=" + cids_to_request.toString();
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var crow = document.getElementById("RROW-" + id);
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var article_is_unread = crow.className.match("Unread");
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showArticleInHeadlines(id);
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if (!cached_article) {
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notify_progress("Loading, please wait...");
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} else if (cached_article && article_is_unread) {
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query = query + "&mode=prefetch";
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render_article(cached_article);
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} else if (cached_article) {
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query = query + "&mode=prefetch_old";
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render_article(cached_article);
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}
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cache_expire();
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new Ajax.Request(query, {
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onComplete: function(transport) {
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article_callback2(transport, id, feed_id);
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} });
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} catch (e) {
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exception_error("view", e);
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}
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