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Code Issues Releases Wiki Activity

add experimental headline caching

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This commit is contained in:
Andrew Dolgov
2007-11-21 09:23:34 +01:00
parent 1a9b5b84a7
commit e19c1824e9
3 changed files with 104 additions and 18 deletions
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53
viewfeed.js
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@@ -45,11 +45,8 @@ function catchup_callback2(transport, callback) {
}
}
function headlines_callback2(transport, active_feed_id, is_cat, feed_cur_page) {
function clean_feed_selections() {
try {
debug("headlines_callback2 [page=" + feed_cur_page + "]");
var feeds = document.getElementById("feedList").getElementsByTagName("LI");
for (var i = 0; i < feeds.length; i++) {
@@ -57,6 +54,17 @@ function headlines_callback2(transport, active_feed_id, is_cat, feed_cur_page) {
feeds[i].className = feeds[i].className.replace("Selected", "");
}
}
} catch (e) {
exception_error("clean_feed_selections", e);
}
}
function headlines_callback2(transport, active_feed_id, is_cat, feed_cur_page) {
try {
debug("headlines_callback2 [page=" + feed_cur_page + "]");
clean_feed_selections();
setActiveFeedId(active_feed_id);
@@ -82,9 +90,11 @@ function headlines_callback2(transport, active_feed_id, is_cat, feed_cur_page) {
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 headlines_count = headlines_count_obj.getAttribute("value");
var headlines_unread = headlines_unread_obj.getAttribute("value");
if (headlines_count == 0) _infscroll_disable = 1;
var counters = transport.responseXML.getElementsByTagName("counters")[0];
@@ -94,6 +104,10 @@ function headlines_callback2(transport, active_feed_id, is_cat, feed_cur_page) {
if (feed_cur_page == 0) {
if (headlines) {
f.innerHTML = headlines.firstChild.nodeValue;
cache_inject("F:" + active_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>";
@@ -1181,19 +1195,20 @@ function cdmWatchdog() {
}
function cache_inject(id, article) {
if (!cache_check(id)) {
debug("cache_article: miss: " + id);
function cache_inject(id, article, param) {
if (!cache_check(id, param)) {
debug("cache_article: miss: " + id + " [p=" + param + "]");
var cache_obj = new Array();
cache_obj["id"] = id;
cache_obj["data"] = article;
cache_obj["param"] = param;
article_cache.push(cache_obj);
} else {
debug("cache_article: hit: " + id);
debug("cache_article: hit: " + id + " [p=" + param + "]");
}
}
@@ -1206,6 +1221,15 @@ function cache_find(id) {
return false;
}
function cache_get_param(id) {
for (var i = 0; i < article_cache.length; i++) {
if (article_cache[i]["id"] == id) {
return article_cache[i]["param"];
}
}
return false;
}
function cache_check(id) {
for (var i = 0; i < article_cache.length; i++) {
if (article_cache[i]["id"] == id) {
@@ -1215,6 +1239,15 @@ function cache_check(id) {
return false;
}
function cache_check_param(id, param) {
for (var i = 0; i < article_cache.length; i++) {
if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
return true;
}
}
return false;
}
function cache_expire() {
while (article_cache.length > 20) {
article_cache.shift();