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tt-rss/offline.js

603 lines
15 KiB
JavaScript

var SCHEMA_VERSION = 2;
var offline_mode = false;
var store = false;
var localServer = false;
var db = false;
function view_offline(id, feed_id) {
try {
enableHotkeys();
showArticleInHeadlines(id);
db.execute("UPDATE articles SET unread = 0 WHERE id = ?", [id]);
var rs = db.execute("SELECT * FROM articles WHERE id = ?", [id]);
if (rs.isValidRow()) {
var tmp = "<div class=\"postReply\">";
tmp += "<div class=\"postHeader\" onmouseover=\"enable_resize(true)\" "+
"onmouseout=\"enable_resize(false)\">";
tmp += "<div class=\"postDate\">"+rs.fieldByName("updated")+"</div>";
if (rs.fieldByName("link") != "") {
tmp += "<div clear='both'><a target=\"_blank\" "+
"href=\"" + rs.fieldByName("link") + "\">" +
rs.fieldByName("title") + "</a></div>";
} else {
tmp += "<div clear='both'>" + rs.fieldByName("title") + "</div>";
}
tmp += "<div style='float : right'> "+
"<img src='images/tag.png' class='tagsPic' alt='Tags' title='Tags'>";
tmp += rs.fieldByName("tags");
tmp += "</div>";
tmp += "<div clear='both'>fixme-comments</div>";
tmp += "</div>";
tmp += "<div class=\"postContent\">"
tmp += rs.fieldByName("content");
tmp += "</div>";
tmp += "</div>";
render_article(tmp);
update_local_feedlist_counters();
}
return false;
} catch (e) {
exception_error("view_offline", e);
}
}
function viewfeed_offline(feed_id, subop, is_cat, subop_param, skip_history, offset) {
try {
notify('');
if (!offset) offset = 0;
loading_set_progress(100);
clean_feed_selections();
setActiveFeedId(feed_id, is_cat);
if (!is_cat) {
var feedr = document.getElementById("FEEDR-" + feed_id);
if (feedr && !feedr.className.match("Selected")) {
feedr.className = feedr.className + "Selected";
}
} else {
var feedr = document.getElementById("FCAT-" + feed_id);
if (feedr && !feedr.className.match("Selected")) {
feedr.className = feedr.className + "Selected";
}
}
disableContainerChildren("headlinesToolbar", false);
Form.enable("main_toolbar_form");
var f = document.getElementById("headlines-frame");
try {
if (reply.offset == 0) {
debug("resetting headlines scrollTop");
f.scrollTop = 0;
}
} catch (e) { };
var container = document.getElementById("headlines-frame");
var tmp = "";
rs = db.execute("SELECT title FROM feeds WHERE id = ?", [feed_id]);
if (rs.isValidRow() || feed_id == -1 || feed_id == -4) {
feed_title = rs.field(0);
if (feed_id == -1) {
feed_title = __("Starred articles");
}
if (feed_id == -4) {
feed_title = __("All articles");
}
if (offset == 0) {
tmp += "<div id=\"headlinesContainer\">";
tmp += "<div class=\"headlinesSubToolbar\">";
tmp += "<div id=\"subtoolbar_ftitle\">";
tmp += feed_title;
tmp += "</div>";
var sel_all_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, '', true)";
var sel_unread_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true)";
var sel_none_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false)";
var sel_inv_link = "javascript:invertHeadlineSelection()";
tmp += __('Select:')+
" <a href=\""+sel_all_link+"\">"+__('All')+"</a>, "+
"<a href=\""+sel_unread_link+"\">"+__('Unread')+"</a>, "+
"<a href=\""+sel_inv_link+"\">"+__('Invert')+"</a>, "+
"<a href=\""+sel_none_link+"\">"+__('None')+"</a>";
tmp += "&nbsp;&nbsp;";
tmp += "</div>";
tmp += "<div id=\"headlinesInnerContainer\" onscroll=\"headlines_scroll_handler()\">";
tmp += "<table class=\"headlinesList\" id=\"headlinesList\" cellspacing=\"0\">";
}
var rs;
var limit = 30;
var toolbar_form = document.forms["main_toolbar_form"];
var limit = toolbar_form.limit[toolbar_form.limit.selectedIndex].value;
var view_mode = toolbar_form.view_mode[toolbar_form.view_mode.selectedIndex].value;
var limit_qpart = "";
var strategy_qpart = "";
var mode_qpart = "";
if (limit != 0) {
limit_qpart = "LIMIT " + limit;
}
if (view_mode == "all_articles") {
mode_qpart = "1";
} else if (view_mode == "adaptive") {
if (get_local_feed_unread(feed_id) > 0) {
mode_qpart = "unread = 1";
} else {
mode_qpart = "1";
}
} else if (view_mode == "marked") {
mode_qpart = "marked = 1";
} else if (view_mode == "unread") {
mode_qpart = "unread = 1";
} else {
mode_qpart = "1";
}
if (feed_id > 0) {
strategy_qpart = "feed_id = " + feed_id;
} else if (feed_id == -1) {
strategy_qpart = "marked = 1";
} else if (feed_id == -4) {
strategy_qpart = "1";
}
var query = "SELECT * FROM articles WHERE " +
strategy_qpart +
" AND " + mode_qpart +
" ORDER BY updated DESC "+
limit_qpart;
var rs = db.execute(query);
var line_num = 0;
while (rs.isValidRow()) {
var id = rs.fieldByName("id");
var feed_id = rs.fieldByName("feed_id");
var marked_pic;
var row_class = (line_num % 2) ? "even" : "odd";
if (rs.fieldByName("unread") == "1") {
row_class += "Unread";
}
if (rs.fieldByName("marked") == "1") {
marked_pic = "<img id=\"FMPIC-"+id+"\" "+
"src=\"images/mark_set.png\" class=\"markedPic\""+
"alt=\"Unstar article\" onclick='javascript:tMark("+id+")'>";
} else {
marked_pic = "<img id=\"FMPIC-"+id+"\" "+
"src=\"images/mark_unset.png\" class=\"markedPic\""+
"alt=\"Star article\" onclick='javascript:tMark("+id+")'>";
}
var mouseover_attrs = "onmouseover='postMouseIn($id)' "+
"onmouseout='postMouseOut($id)'";
tmp += "<tr class='"+row_class+"' id='RROW-"+id+"' "+mouseover_attrs+">";
tmp += "<td class='hlUpdPic'> </td>";
tmp += "<td class='hlSelectRow'>"+
"<input type=\"checkbox\" onclick=\"tSR(this)\" id=\"RCHK-"+id+"\"></td>";
tmp += "<td class='hlMarkedPic'>"+marked_pic+"</td>";
tmp += "<td onclick='view("+id+","+feed_id+")' "+
"class='hlContent' valign='middle'>";
tmp += "<a target=\"_blank\" id=\"RTITLE-$id\" href=\"" +
rs.fieldByName("link") + "\"" +
"onclick=\"return view("+id+","+feed_id+");\">"+
rs.fieldByName("title");
var content_preview = truncate_string(strip_tags(rs.fieldByName("content")),
100);
tmp += "<span class=\"contentPreview\"> - "+content_preview+"</span>";
tmp += "</a>";
tmp += "</td>";
tmp += "<td class=\"hlUpdated\" onclick='view("+id+","+feed_id+")'>"+
"<nobr>"+rs.fieldByName("updated").substring(0,16)+"</nobr></td>";
tmp += "</tr>";
rs.next();
line_num++;
}
if (offset == 0) {
tmp += "</table>";
tmp += "</div></div>";
}
if (offset == 0) {
container.innerHTML = tmp;
} else {
var ids = getSelectedArticleIds2();
//container.innerHTML = container.innerHTML + tmp;
for (var i = 0; i < ids.length; i++) {
markHeadline(ids[i]);
}
}
}
remove_splash();
} catch (e) {
exception_error("viewfeed_offline", e);
}
}
function render_offline_feedlist() {
try {
var tmp = "<ul class=\"feedList\" id=\"feedList\">";
var unread = get_local_feed_unread(-4);
global_unread = unread;
updateTitle();
tmp += printFeedEntry(-4, __("All articles"), "feed", unread,
"images/tag.png");
var unread = get_local_feed_unread(-1);
tmp += printFeedEntry(-1, __("Starred articles"), "feed", unread,
"images/mark_set.png");
tmp += "<li><hr/></li>";
var rs = db.execute("SELECT feeds.id,feeds.title,has_icon,COUNT(articles.id) "+
"FROM feeds LEFT JOIN articles ON (feed_id = feeds.id) "+
"WHERE unread = 1 OR unread IS NULL GROUP BY feeds.id "+
"ORDER BY feeds.title");
while (rs.isValidRow()) {
var id = rs.field(0);
var title = rs.field(1);
var has_icon = rs.field(2);
var unread = rs.field(3);
var icon = "";
if (has_icon) {
icon = "icons/" + id + ".ico";
}
var feed_icon = "";
var row_class = "feed";
if (unread > 0) {
row_class += "Unread";
fctr_class = "feedCtrHasUnread";
} else {
fctr_class = "feedCtrNoUnread";
}
tmp += printFeedEntry(id, title, "feed", unread, icon);
rs.next();
}
tmp += "</ul>";
render_feedlist(tmp);
} catch (e) {
exception_error("render_offline_feedlist", e);
}
}
function init_offline() {
try {
offline_mode = true;
Element.hide("dispSwitchPrompt");
Element.hide("feedBrowserPrompt");
Element.hide("quickMenuChooser");
var tb_form = document.getElementById("main_toolbar_form");
Element.hide(tb_form.update);
init_params["theme"] = "";
render_offline_feedlist();
remove_splash();
} catch (e) {
exception_error("init_offline", e);
}
}
function offline_download_parse(stage, transport) {
try {
if (transport.responseXML) {
if (stage == 0) {
var feeds = transport.responseXML.getElementsByTagName("feed");
if (feeds.length > 0) {
db.execute("DELETE FROM feeds");
}
for (var i = 0; i < feeds.length; i++) {
var id = feeds[i].getAttribute("id");
var has_icon = feeds[i].getAttribute("has_icon");
var title = feeds[i].firstChild.nodeValue;
db.execute("INSERT INTO feeds (id,title,has_icon)"+
"VALUES (?,?,?)",
[id, title, has_icon]);
}
window.setTimeout("update_offline_data("+(stage+1)+")", 60*1000);
} else {
var articles = transport.responseXML.getElementsByTagName("article");
var articles_found = 0;
for (var i = 0; i < articles.length; i++) {
var a = eval("("+articles[i].firstChild.nodeValue+")");
articles_found++;
if (a) {
var date = new Date();
var ts = Math.round(date.getTime() / 1000);
db.execute("DELETE FROM articles WHERE id = ?", [a.id]);
db.execute("INSERT INTO articles "+
"(id, feed_id, title, link, guid, updated, content, "+
"unread, marked, tags, added) "+
"VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
[a.id, a.feed_id, a.title, a.link, a.guid, a.updated,
a.content, a.unread, a.marked, a.tags, ts]);
}
}
if (articles_found > 0) {
window.setTimeout("update_offline_data("+(stage+1)+")", 60*1000);
} else {
window.setTimeout("update_offline_data(0)", 1800*1000);
var date = new Date();
var ts = Math.round(date.getTime() / 1000);
db.execute("DELETE FROM articles WHERE added < ? - 2592000", [ts]);
}
}
}
} catch (e) {
exception_error("offline_download_parse", e);
}
}
function update_offline_data(stage) {
try {
if (!stage) stage = 0;
debug("update_offline_data: stage " + stage);
// notify_progress("Loading, please wait... (" + stage +")", true);
var query = "backend.php?op=rpc&subop=download&stage=" + stage;
var rs = db.execute("SELECT MAX(id), MIN(id) FROM articles");
if (rs.isValidRow() && rs.field(0)) {
var offline_dl_max_id = rs.field(0);
var offline_dl_min_id = rs.field(1);
query = query + "&cidt=" + offline_dl_max_id;
query = query + "&cidb=" + offline_dl_min_id;
}
new Ajax.Request(query, {
onComplete: function(transport) {
offline_download_parse(stage, transport);
debug("update_offline_data: done " + stage);
} });
} catch (e) {
exception_error("initiate_offline_download", e);
}
}
function set_feedlist_counter(id, ctr) {
try {
var feedctr = document.getElementById("FEEDCTR-" + id);
var feedu = document.getElementById("FEEDU-" + id);
var feedr = document.getElementById("FEEDR-" + id);
if (feedctr && feedu && feedr) {
var row_needs_hl = (ctr > 0 && ctr > parseInt(feedu.innerHTML));
feedu.innerHTML = ctr;
if (ctr > 0) {
feedctr.className = "feedCtrHasUnread";
if (!feedr.className.match("Unread")) {
var is_selected = feedr.className.match("Selected");
feedr.className = feedr.className.replace("Selected", "");
feedr.className = feedr.className.replace("Unread", "");
feedr.className = feedr.className + "Unread";
if (is_selected) {
feedr.className = feedr.className + "Selected";
}
}
if (row_needs_hl) {
new Effect.Highlight(feedr, {duration: 1, startcolor: "#fff7d5",
queue: { position:'end', scope: 'EFQ-' + id, limit: 1 } } );
}
} else {
feedctr.className = "feedCtrNoUnread";
feedr.className = feedr.className.replace("Unread", "");
}
}
} catch (e) {
exception_error("set_feedlist_counter", e);
}
}
function update_local_feedlist_counters() {
try {
if (!db) return;
var rs = db.execute("SELECT feeds.id,COUNT(articles.id) "+
"FROM feeds LEFT JOIN articles ON (feed_id = feeds.id) "+
"WHERE unread = 1 OR unread IS NULL GROUP BY feeds.id "+
"ORDER BY feeds.title");
while (rs.isValidRow()) {
var id = rs.field(0);
var ctr = rs.field(1);
set_feedlist_counter(id, ctr);
rs.next();
}
set_feedlist_counter(-4, get_local_feed_unread(-4));
set_feedlist_counter(-1, get_local_feed_unread(-1));
hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
global_unread = get_local_feed_unread(-4);
updateTitle();
} catch (e) {
exception_error("update_local_feedlist_counters", e);
}
}
function get_local_feed_unread(id) {
try {
var rs;
if (id == -4) {
rs = db.execute("SELECT SUM(unread) FROM articles");
} else if (id == -1) {
rs = db.execute("SELECT SUM(unread) FROM articles WHERE marked = 1");
} else {
rs = db.execute("SELECT SUM(unread) FROM articles WHERE feed_id = ?", [id]);
}
if (rs.isValidRow()) {
return rs.field(0);
} else {
return 0;
}
} catch (e) {
exception_error("get_local_feed_unread", e);
}
}
function init_gears() {
try {
if (window.google && google.gears) {
localServer = google.gears.factory.create("beta.localserver");
store = localServer.createManagedStore("tt-rss");
db = google.gears.factory.create('beta.database');
db.open('tt-rss');
db.execute("CREATE TABLE IF NOT EXISTS version (schema_version text)");
var rs = db.execute("SELECT schema_version FROM version");
var version = "";
if (rs.isValidRow()) {
version = rs.field(0);
}
if (version != SCHEMA_VERSION) {
db.execute("DROP TABLE IF EXISTS cache");
db.execute("DROP TABLE IF EXISTS feeds");
db.execute("DROP TABLE IF EXISTS articles");
db.execute("INSERT INTO version (schema_version) VALUES (?)",
[SCHEMA_VERSION]);
}
db.execute("CREATE TABLE IF NOT EXISTS cache (id text, article text, param text, added text)");
db.execute("CREATE TABLE IF NOT EXISTS feeds (id integer, title text, has_icon integer)");
db.execute("CREATE TABLE IF NOT EXISTS articles (id integer, feed_id integer, title text, link text, guid text, updated text, content text, tags text, unread text, marked text, added text, comments text)");
window.setTimeout("update_offline_data(0)", 100);
}
cache_expire();
} catch (e) {
exception_error("init_gears", e);
}
}