ttrss/offline.js

1737 lines
42 KiB
JavaScript

var SCHEMA_VERSION = 10;
var offline_mode = false;
var store = false;
var localServer = false;
var db = false;
var articles_synced = 0;
var sync_in_progress = false;
var sync_timer = 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'>"+
"<a target=\"_blank\" "+
"href=\"" + rs.fieldByName("comments") + "\">" +
__("comments") + "</a></div>"; */
tmp += "</div>";
tmp += "<div class=\"postContent\">"
tmp += rs.fieldByName("content");
tmp += "</div>";
tmp += "</div>";
render_article(tmp);
update_local_feedlist_counters();
}
rs.close();
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;
if (offset > 0) {
_feed_cur_page = parseInt(offset);
if (_infscroll_request_sent) {
return;
}
} else {
_feed_cur_page = 0;
_infscroll_disable = 0;
}
if (getActiveFeedId() != feed_id) {
_feed_cur_page = 0;
active_post_id = 0;
_infscroll_disable = 0;
}
loading_set_progress(100);
clean_feed_selections();
setActiveFeedId(feed_id, is_cat);
if (!is_cat) {
var feedr = $("FEEDR-" + feed_id);
if (feedr && !feedr.className.match("Selected")) {
feedr.className = feedr.className + "Selected";
}
} else {
var feedr = $("FCAT-" + feed_id);
if (feedr && !feedr.className.match("Selected")) {
feedr.className = feedr.className + "Selected";
}
}
if (subop == "MarkAllRead") {
catchup_local_feed(feed_id, is_cat);
}
disableContainerChildren("headlinesToolbar", false);
Form.enable("main_toolbar_form");
var f = $("headlines-frame");
try {
if (reply.offset == 0) {
debug("resetting headlines scrollTop");
f.scrollTop = 0;
}
} catch (e) { };
var tmp = "";
var feed_title = "";
if (is_cat) {
feed_title = get_local_category_title(feed_id);
} else {
feed_title = get_local_feed_title(feed_id);
}
if (feed_title) {
if (offset == 0) {
tmp += "<div id=\"headlinesContainer\">";
tmp += "<div class=\"headlinesSubToolbar\">";
tmp += "<div id=\"subtoolbar_ftitle\">";
tmp += feed_title;
tmp += "</div>";
var sel_all_link;
var sel_unread_link;
var sel_none_link;
var sel_inv_link;
if ($("content-frame")) {
sel_all_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, '', true)";
sel_unread_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true)";
sel_none_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false)";
sel_inv_link = "javascript:invertHeadlineSelection()";
} else {
sel_all_link = "javascript:cdmSelectArticles('all')";
sel_unread_link = "javascript:cdmSelectArticles('unread')";
sel_none_link = "javascript:cdmSelectArticles('none')";
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 += "<span onmouseover=\"enable_selection(false)\" "+
"onmouseout=\"enable_selection(true) \"" +
"onclick=\"toggleHeadlineActions()\" id=\"headlineActionsDrop\">" +
__("Actions...") + "&nbsp;&nbsp;<img src=\"images/down_arrow.png\">" +
"</span>";
tmp += "<ul id=\"headlineActionsBody\" style=\"display : none\">";
var tog_unread_link = "";
var tog_marked_link = "";
var catchup_sel_link = "";
var catchup_feed_link = "";
tmp += "<li class=\"insensitive\">"+__('Selection toggle:')+"</li>"+
"<li onclick=\""+tog_unread_link+"\">&nbsp;&nbsp;"+__('Unread')+"</li>"+
"<li onclick=\""+tog_marked_link+"\">&nbsp;&nbsp;"+__('Starred')+"</li>"+
"<li class=\"insensitive\">"+__('Mark as read:')+"</li>"+
"<li onclick=\""+catchup_sel_link+"\">&nbsp;&nbsp;"+__('Selection')+"</li>";
tmp += "<li onclick=\""+catchup_feed_link+"\">&nbsp;&nbsp;"+__('Entire feed')+
"</li>";
tmp += "</ul>";
tmp += "</div>";
tmp += "<div id=\"headlinesInnerContainer\" onscroll=\"headlines_scroll_handler()\">";
if ($("content-frame")) {
tmp += "<table class=\"headlinesList\" id=\"headlinesList\" cellspacing=\"0\">";
}
}
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 = "";
var offset_qpart = "";
if (limit != 0) {
limit_qpart = "LIMIT " + limit;
}
if (view_mode == "all_articles") {
mode_qpart = "1";
} else if (view_mode == "adaptive") {
if (is_cat && get_local_category_unread(feed_id) ||
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";
}
var ext_tables_qpart = "";
if (is_cat) {
if (feed_id >= 0) {
strategy_qpart = "cat_id = " + feed_id;
} else if (feed_id == -2) {
strategy_qpart = "article_labels.id = articles.id";
ext_tables_qpart = ",article_labels";
}
} else 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";
} else if (feed_id < -10) {
var label_id = -11 - feed_id;
strategy_qpart = "article_labels.id = articles.id AND label_id = " + label_id;
ext_tables_qpart = ",article_labels";
}
if (offset > 0) {
offset_qpart = "OFFSET " + (offset*30);
} else {
offset_qpart = "";
}
var query = "SELECT *,feeds.title AS feed_title "+
"FROM articles,feeds,categories"+ext_tables_qpart+" "+
"WHERE " +
"cat_id = categories.id AND " +
"feed_id = feeds.id AND " +
strategy_qpart +
" AND " + mode_qpart +
" ORDER BY updated DESC "+
limit_qpart + " " +
offset_qpart;
var rs = db.execute(query);
var line_num = offset*30;
var real_feed_id = feed_id;
while (rs.isValidRow()) {
var id = rs.fieldByName("id");
var feed_id = rs.fieldByName("feed_id");
var entry_feed_title = false;
if (real_feed_id < 0 || is_cat) {
entry_feed_title = rs.fieldByName("feed_title");
}
var marked_pic;
var row_class = (line_num % 2) ? "even" : "odd";
if (rs.fieldByName("unread") == "1") {
row_class += "Unread";
}
var labels = get_local_article_labels(id);
var labels_str = "<span id=\"HLLCTR-"+id+"\">";
labels_str += format_article_labels(labels, id);
labels_str += "</span>";
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($id)'";
var content_preview = truncate_string(strip_tags(rs.fieldByName("content")),
100);
if ($("content-frame")) {
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");
tmp += "<span class=\"contentPreview\"> - "+content_preview+"</span>";
tmp += "</a>";
tmp += labels_str;
if (entry_feed_title) {
tmp += " <span class=\"hlFeed\">"+
"(<a href='javascript:viewfeed("+feed_id+
")'>"+entry_feed_title+"</a>)</span>";
}
tmp += "</td>";
tmp += "<td class=\"hlUpdated\" onclick='view("+id+","+feed_id+")'>"+
"<nobr>"+rs.fieldByName("updated").substring(0,16)+
"</nobr></td>";
tmp += "</tr>";
} else {
var add_class = "";
if (rs.fieldByName("unread") == "1") {
add_class = "Unread";
}
tmp += "<div class=\"cdmArticle"+add_class+"\" id=\"RROW-"+id+"\" "+
mouseover_attrs+"'>";
feed_icon_img = "<img class=\"tinyFeedIcon\" src=\""+
getInitParam("icons_url")+"/"+feed_id+".ico\" alt=\"\">";
cdm_feed_icon = "<span style=\"cursor : pointer\" "+
"onclick=\"viewfeed("+feed_id+")\">"+feed_icon_img+"</span>";
tmp += "<div class=\"cdmHeader\">";
tmp += "<div class=\"articleUpdated\">"+
rs.fieldByName("updated").substring(0,16)+
" "+cdm_feed_icon+"</div>";
tmp += "<span id=\"RTITLE-"+id+"\" class=\"titleWrap\">"+
"<a class=\"title\" onclick=\"javascript:toggleUnread("+id+", 0)\""+
"target=\"_blank\" href=\""+rs.fieldByName("link")+
"\">"+rs.fieldByName("title")+"</a>";
tmp += labels_str;
if (entry_feed_title) {
tmp += "&nbsp;(<a href='javascript:viewfeed("+feed_id+
")'>"+entry_feed_title+"</a>)";
}
tmp += "</span></div>";
tmp += "<div class=\"cdmContent\" onclick=\"cdmClicked("+id+")\""+
"id=\"CICD-"+id+"\">";
tmp += rs.fieldByName("content");
tmp += "<br clear='both'>"
tmp += "</div>";
tmp += "<div class=\"cdmFooter\"><span class='s0'>";
tmp += __("Select:")+
" <input type=\"checkbox\" "+
"onclick=\"toggleSelectRowById(this, 'RROW-"+id+"')\" "+
"class=\"feedCheckBox\" id=\"RCHK-"+id+"\">";
tmp += "</span><span class='s1'>"+marked_pic+"</span> ";
/* tmp += "<span class='s1'>"+
"<img class='tagsPic' src='images/tag.png' alt='Tags' title='Tags'>"+
"<span id=\"ATSTR-"+id+"\">"+rs.fieldByName("tags")+"</span>"+
"</span>"; */
tmp += "<span class='s2'>Toggle: <a class=\"cdmToggleLink\""+
"href=\"javascript:toggleUnread("+id+")\">"+
"Unread</a></span>";
tmp += "</div>";
tmp += "</div>";
}
rs.next();
line_num++;
}
if (line_num - offset*30 < 30) {
_infscroll_disable = 1;
}
rs.close();
if (offset == 0) {
tmp += "</table>";
if (line_num - offset*30 == 0) {
tmp += "<div class='whiteBox'>" +
__("No articles found to display.") +
"</div>";
}
tmp += "</div></div>";
}
if (offset == 0) {
var container = $("headlines-frame");
container.innerHTML = tmp;
} else {
var ids = getSelectedArticleIds2();
var container = $("headlinesList");
container.innerHTML = container.innerHTML + tmp;
for (var i = 0; i < ids.length; i++) {
markHeadline(ids[i]);
}
}
}
remove_splash();
_infscroll_request_sent = 0;
} catch (e) {
exception_error("viewfeed_offline", e);
}
}
function render_offline_feedlist() {
try {
var cats_enabled = getInitParam("enable_feed_cats") == "1";
var tmp = "<ul class=\"feedList\" id=\"feedList\">";
var unread = get_local_feed_unread(-4);
global_unread = unread;
updateTitle();
if (cats_enabled) {
tmp += printCategoryHeader(-1, is_local_cat_collapsed(-1), false);
}
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");
if (cats_enabled) {
tmp += "</ul></li>";
} else {
tmp += "<li><hr/></li>";
}
if (cats_enabled) {
tmp += printCategoryHeader(-2, is_local_cat_collapsed(-2), false);
}
var rs = db.execute("SELECT id,caption "+
"FROM labels "+
"ORDER BY caption");
while (rs.isValidRow()) {
var id = -11 - parseInt(rs.field(0));
var caption = rs.field(1);
var unread = get_local_feed_unread(id);
tmp += printFeedEntry(id, caption, "feed", unread,
"images/label.png");
rs.next();
}
rs.close();
if (cats_enabled) {
tmp += "</ul></li>";
} else {
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"); */
var order_by = "feeds.title";
if (cats_enabled) order_by = "categories.title," + order_by;
var rs = db.execute("SELECT "+
"feeds.id,feeds.title,has_icon,cat_id,collapsed "+
"FROM feeds,categories WHERE cat_id = categories.id "+
"ORDER BY "+order_by);
var tmp_cat_id = -1;
while (rs.isValidRow()) {
var id = rs.field(0);
var title = rs.field(1);
var has_icon = rs.field(2);
var unread = get_local_feed_unread(id);
var cat_id = rs.field(3);
var cat_hidden = rs.field(4);
if (cat_id != tmp_cat_id && cats_enabled) {
if (tmp_cat_id != -1) {
tmp += "</ul></li>";
}
tmp += printCategoryHeader(cat_id, cat_hidden, true);
tmp_cat_id = cat_id;
}
var icon = "";
if (has_icon) {
icon = getInitParam("icons_url") + "/" + 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();
}
rs.close();
if (cats_enabled) {
tmp += "</ul>";
}
tmp += "</ul>";
render_feedlist(tmp);
} catch (e) {
exception_error("render_offline_feedlist", e);
}
}
function init_offline() {
try {
offline_mode = true;
store.enabled = true;
Element.hide("dispSwitchPrompt");
Element.hide("feedBrowserPrompt");
Element.hide("topLinksOnline");
Element.show("topLinksOffline");
var tb_form = $("main_toolbar_form");
Element.hide(tb_form.update);
var chooser = $("quickMenuChooser");
chooser.disabled = true;
var rs = db.execute("SELECT key, value FROM init_params");
while (rs.isValidRow()) {
init_params[rs.field(0)] = rs.field(1);
rs.next();
}
rs.close();
var rs = db.execute("SELECT COUNT(*) FROM feeds");
var num_feeds = 0;
if (rs.isValidRow()) {
num_feeds = rs.field(0);
}
rs.close();
if (num_feeds == 0) {
remove_splash();
return fatalError(0,
__("Data for offline browsing has not been downloaded yet."));
}
render_offline_feedlist();
init_second_stage();
window.setTimeout("viewfeed(-4)", 50);
} catch (e) {
exception_error("init_offline", e);
}
}
function offline_download_parse(stage, transport) {
try {
if (transport.responseXML) {
if (!sync_in_progress) return;
var sync_ok = transport.responseXML.getElementsByTagName("sync-ok");
if (sync_ok.length > 0) {
for (var i = 0; i < sync_ok.length; i++) {
var id = sync_ok[i].getAttribute("id");
if (id) {
debug("synced offline info for id " + id);
db.execute("UPDATE articles SET modified = '' WHERE id = ?", [id]);
}
}
}
if (stage == 0) {
$("offlineModeSyncMsg").innerHTML = __("Synchronizing feeds...");
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;
var cat_id = feeds[i].getAttribute("cat_id");
db.execute("INSERT INTO feeds (id,title,has_icon,cat_id)"+
"VALUES (?,?,?,?)",
[id, title, has_icon, cat_id]);
}
$("offlineModeSyncMsg").innerHTML = __("Synchronizing categories...");
var cats = transport.responseXML.getElementsByTagName("category");
if (feeds.length > 0) {
db.execute("DELETE FROM categories");
}
for (var i = 0; i < cats.length; i++) {
var id = cats[i].getAttribute("id");
var collapsed = cats[i].getAttribute("collapsed");
var title = cats[i].firstChild.nodeValue;
db.execute("INSERT INTO categories (id,title,collapsed)"+
"VALUES (?,?,?)",
[id, title, collapsed]);
}
$("offlineModeSyncMsg").innerHTML = __("Synchronizing labels...");
var labels = transport.responseXML.getElementsByTagName("label");
if (labels.length > 0) {
db.execute("DELETE FROM labels");
}
for (var i = 0; i < labels.length; i++) {
var id = labels[i].getAttribute("id");
var fg_color = labels[i].getAttribute("fg_color");
var bg_color = labels[i].getAttribute("bg_color");
var caption = labels[i].firstChild.nodeValue;
db.execute("INSERT INTO labels (id,caption,fg_color,bg_color)"+
"VALUES (?,?,?,?)",
[id, caption, fg_color, bg_color]);
}
$("offlineModeSyncMsg").innerHTML = __("Synchronizing articles...");
sync_timer = window.setTimeout("update_offline_data("+(stage+1)+")", 2*1000);
} else {
var articles = transport.responseXML.getElementsByTagName("article");
var limit = transport.responseXML.getElementsByTagName("limit")[0];
if (limit) {
limit = limit.getAttribute("value");
} else {
limit = 0;
}
var articles_found = 0;
for (var i = 0; i < articles.length; i++) {
var a = eval("("+articles[i].firstChild.nodeValue+")");
articles_found++;
if (a) {
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, comments) "+
"VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
[a.id, a.feed_id, a.title, a.link, a.guid, a.updated,
a.content, a.unread, a.marked, a.tags,
a.comments]);
if (a.labels.length > 0) {
for (var j = 0; j < a.labels.length; j++) {
label_local_add_article(a.id, a.labels[j][0]);
}
}
}
}
debug("downloaded articles: " + articles_found + " limit: " + limit);
articles_synced += articles_found;
var msg =__("Synchronizing articles (%d)...").replace("%d", articles_synced);
$("offlineModeSyncMsg").innerHTML = msg;
var has_sync_data = has_local_sync_data();
if (articles_found >= limit || has_sync_data) {
sync_timer = window.setTimeout("update_offline_data("+(stage+1)+")",
3*1000);
debug("<b>update_offline_data: done " + stage + " HSD: " +
has_sync_data + "</b>");
} else {
window.setTimeout("offlineDownloadStart()", 180*1000);
debug("update_offline_data: finished");
var pic = $("offlineModePic");
if (pic) {
pic.src = "images/offline.png";
var rs = db.execute("SELECT value FROM syncdata WHERE key = 'last_online'");
var last_sync = "";
if (rs.isValidRow()) {
last_sync = rs.field(0).substring(0,16);
}
rs.close();
var msg = __("Last sync: %s").replace("%s", last_sync);
articles_synced = 0;
$("offlineModeSyncMsg").innerHTML = msg;
}
offlineSyncShowHideElems(false);
sync_in_progress = false;
db.execute("DELETE FROM articles WHERE "+
"updated < DATETIME('NOW', 'localtime', '-31 days')");
}
}
update_local_sync_data();
// notify('');
} else {
sync_in_progress = false;
var pic = $("offlineModePic");
if (pic) {
pic.src = "images/offline.png";
var msg = __("Last sync: Error receiving data.");
articles_synced = 0;
$("offlineModeSyncMsg").innerHTML = msg;
}
offlineSyncShowHideElems(false);
}
} catch (e) {
exception_error("offline_download_parse", e);
}
}
function update_offline_data(stage) {
try {
if (!stage) stage = 0;
if (!db || offline_mode || getInitParam("offline_enabled") != "1") return;
// notify_progress("Updating offline data... (" + stage +")", true);
var query = "backend.php?op=rpc&subop=download";
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;
stage = 1;
}
rs.close();
debug("update_offline_data: stage " + stage);
query = query + "&stage=" + stage;
var to_sync = prepare_local_sync_data();
if (to_sync != "") {
to_sync = "?sync=" + param_escape(to_sync);
}
debug(query + "/" + to_sync);
var pic = $("offlineModePic");
if (pic) {
pic.src = "images/offline-sync.gif";
if (articles_synced == 0) {
$("offlineModeSyncMsg").innerHTML = __("Synchronizing...");
}
}
offlineSyncShowHideElems(true);
offlineUpdateStore();
sync_in_progress = true;
new Ajax.Request(query, {
parameters: to_sync,
onComplete: function(transport) {
offline_download_parse(stage, transport);
} });
} catch (e) {
exception_error("initiate_offline_download", e);
}
}
function set_feedlist_counter(id, ctr, is_cat) {
try {
var feedctr = $("FEEDCTR-" + id);
var feedu = $("FEEDU-" + id);
var feedr = $("FEEDR-" + id);
if (is_cat) {
var catctr = $("FCATCTR-" + id);
if (catctr) {
catctr.innerHTML = "(" + ctr + ")";
if (ctr > 0) {
catctr.className = "catCtrHasUnread";
} else {
catctr.className = "catCtrNoUnread";
}
}
} else 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 (!offline_mode || !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"); */
var rs = db.execute("SELECT id FROM feeds "+
"ORDER BY title");
while (rs.isValidRow()) {
var id = rs.field(0);
var ctr = get_local_feed_unread(id);
set_feedlist_counter(id, ctr, false);
rs.next();
}
rs.close();
var rs = db.execute("SELECT cat_id,SUM(unread) "+
"FROM articles, feeds WHERE feeds.id = feed_id GROUP BY cat_id");
while (rs.isValidRow()) {
var id = rs.field(0);
var ctr = rs.field(1);
set_feedlist_counter(id, ctr, true);
rs.next();
}
rs.close();
set_feedlist_counter(-2, get_local_category_unread(-2), true);
set_feedlist_counter(-4, get_local_feed_unread(-4));
set_feedlist_counter(-1, get_local_feed_unread(-1));
var rs = db.execute("SELECT id FROM labels");
while (rs.isValidRow()) {
var id = -11 - rs.field(0);
var ctr = get_local_feed_unread(id);
set_feedlist_counter(id, ctr, false);
rs.next();
}
rs.close();
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 if (id > 0) {
rs = db.execute("SELECT SUM(unread) FROM articles WHERE feed_id = ?", [id]);
} else if (id < -10) {
var label_id = -11 - id;
rs = db.execute("SELECT SUM(unread) FROM articles,article_labels "+
"WHERE article_labels.id = articles.id AND label_id = ?", [label_id]);
}
var a = false;
if (rs.isValidRow()) {
a = rs.field(0);
} else {
a = 0;
}
rs.close();
return a;
} catch (e) {
exception_error("get_local_feed_unread", e);
}
}
function enable_offline_reading() {
try {
if (db && getInitParam("offline_enabled") == "1") {
init_local_sync_data();
Element.show("offlineModePic");
offlineDownloadStart();
}
} catch (e) {
exception_error("enable_offline_reading", e);
}
}
function init_gears() {
try {
if (window.google && google.gears) {
try {
localServer = google.gears.factory.create("beta.localserver");
} catch (e) {
return;
}
store = localServer.createManagedStore("tt-rss");
store.manifestUrl = "manifest.json.php";
store.enabled = false;
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);
}
rs.close();
if (version != SCHEMA_VERSION) {
db.execute("DROP TABLE IF EXISTS init_params");
db.execute("DROP TABLE IF EXISTS cache");
db.execute("DROP TABLE IF EXISTS feeds");
db.execute("DROP TABLE IF EXISTS categories");
db.execute("DROP TABLE IF EXISTS labels");
db.execute("DROP TABLE IF EXISTS article_labels");
db.execute("DROP TABLE IF EXISTS articles");
db.execute("DROP INDEX IF EXISTS article_labels_label_id_idx");
db.execute("DROP INDEX IF EXISTS articles_unread_idx");
db.execute("DROP INDEX IF EXISTS articles_feed_id_idx");
db.execute("DROP INDEX IF EXISTS articles_id_idx");
db.execute("DROP INDEX IF EXISTS article_labels_id_idx");
db.execute("DROP TABLE IF EXISTS version");
db.execute("DROP TRIGGER IF EXISTS articles_update_unread");
db.execute("DROP TRIGGER IF EXISTS articles_update_marked");
db.execute("DROP TRIGGER IF EXISTS articles_remove_labelrefs");
db.execute("CREATE TABLE IF NOT EXISTS version (schema_version text)");
db.execute("DROP TABLE IF EXISTS syncdata");
db.execute("INSERT INTO version (schema_version) VALUES (?)",
[SCHEMA_VERSION]);
}
db.execute("CREATE TABLE IF NOT EXISTS init_params (key text, value text)");
db.execute("CREATE TABLE IF NOT EXISTS cache (id integer, article text, param text, added text)");
db.execute("CREATE TABLE IF NOT EXISTS feeds (id integer, title text, has_icon integer, cat_id integer)");
db.execute("CREATE TABLE IF NOT EXISTS categories (id integer, title text, collapsed integer)");
db.execute("CREATE TABLE IF NOT EXISTS labels (id integer, caption text, fg_color text, bg_color text)");
db.execute("CREATE TABLE IF NOT EXISTS article_labels (id integer, label_id integer)");
db.execute("CREATE TABLE IF NOT EXISTS articles (id integer, feed_id integer, title text, link text, guid text, updated timestamp, content text, tags text, unread integer, marked integer, added text, modified timestamp, comments text)");
db.execute("CREATE INDEX IF NOT EXISTS articles_unread_idx ON articles(unread)");
db.execute("CREATE INDEX IF NOT EXISTS article_labels_label_id_idx ON article_labels(label_id)");
db.execute("CREATE INDEX IF NOT EXISTS articles_feed_id_idx ON articles(feed_id)");
db.execute("CREATE INDEX IF NOT EXISTS articles_id_idx ON articles(id)");
db.execute("CREATE INDEX IF NOT EXISTS article_labels_id_idx ON article_labels(id)");
db.execute("CREATE TABLE IF NOT EXISTS syncdata (key integer, value text)");
db.execute("DELETE FROM cache WHERE id LIKE 'F:%' OR id LIKE 'C:%'");
db.execute("CREATE TRIGGER IF NOT EXISTS articles_update_unread "+
"UPDATE OF unread ON articles "+
"BEGIN "+
"UPDATE articles SET modified = DATETIME('NOW', 'localtime') "+
"WHERE id = OLD.id AND "+
"OLD.unread != NEW.unread;"+
"END;");
db.execute("CREATE TRIGGER IF NOT EXISTS articles_update_marked "+
"UPDATE OF marked ON articles "+
"BEGIN "+
"UPDATE articles SET modified = DATETIME('NOW', 'localtime') "+
"WHERE id = OLD.id;"+
"END;");
db.execute("CREATE TRIGGER IF NOT EXISTS articles_remove_labelrefs "+
"DELETE ON articles "+
"BEGIN "+
"DELETE FROM article_labels WHERE id = OLD.id; "+
"END; ");
}
cache_expire();
} catch (e) {
exception_error("init_gears", e);
}
}
function offlineArticlesStored() {
var rs = db.execute("SELECT COUNT(*) FROM articles");
var count = 0;
if (rs.isValidRow()) {
count = rs.field(0);
}
rs.close();
return count;
}
function gotoOffline() {
// debug("[Local store] currentVersion = " + store.currentVersion);
if (offlineArticlesStored() == 0) {
notify_error("You have to synchronize some articles before going into offline mode.");
return;
}
if (confirm(__("Switch Tiny Tiny RSS into offline mode?"))) {
store.enabled = true;
store.checkForUpdate();
notify_progress("Preparing offline mode...", true);
var timerId = window.setInterval(function() {
if (store.currentVersion) {
window.clearInterval(timerId);
debug("[Local store] sync complete: " + store.currentVersion);
//window.location.href = "tt-rss.php";
offlineDownloadStop();
init_offline();
notify_info("Tiny Tiny RSS is in offline mode.");
} else if (store.updateStatus == 3) {
debug("[Local store] sync error: " + store.lastErrorMessage);
notify_error(store.lastErrorMessage, true);
} }, 500);
}
}
function gotoOnline() {
// if (confirm(__("You won't be able to access offline version of Tiny Tiny RSS until you switch it into offline mode again. Go online?"))) {
if (confirm(__("Tiny Tiny RSS will reload. Go online?"))) {
//localServer.removeManagedStore("tt-rss");
window.location.href = "tt-rss.php";
}
}
function local_collapse_cat(id) {
try {
if (db) {
db.execute("UPDATE categories SET collapsed = NOT collapsed WHERE id = ?",
[id]);
}
} catch (e) {
exception_error("local_collapse_cat", e);
}
}
function get_local_category_title(id) {
try {
var rs = db.execute("SELECT title FROM categories WHERE id = ?", [id]);
var tmp = "";
if (rs.isValidRow()) {
tmp = rs.field(0);
}
rs.close();
return tmp;
} catch (e) {
exception_error("get_local_category_title", e);
}
}
function get_local_category_unread(id) {
try {
var rs = false;
if (id >= 0) {
rs = db.execute("SELECT SUM(unread) FROM articles, feeds "+
"WHERE feeds.id = feed_id AND cat_id = ?", [id]);
} else if (id == -2) {
rs = db.execute("SELECT SUM(unread) FROM article_labels, articles "+
"where article_labels.id = articles.id");
} else {
return 0;
}
var tmp = 0;
if (rs.isValidRow()) {
tmp = rs.field(0);
}
rs.close();
return tmp;
} catch (e) {
exception_error("get_local_category_unread", e);
}
}
function printCategoryHeader(cat_id, hidden, can_browse) {
try {
if (hidden == undefined) hidden = false;
if (can_browse == undefined) can_browse = false;
var tmp_category = get_local_category_title(cat_id);
var tmp = "";
var cat_unread = get_local_category_unread(cat_id);
var holder_style = "";
var ellipsis = "";
if (hidden) {
holder_style = "display:none;";
ellipsis = "…";
}
var catctr_class = (cat_unread > 0) ? "catCtrHasUnread" : "catCtrNoUnread";
var browse_cat_link = "";
var inner_title_class = "catTitleNL";
if (can_browse) {
browse_cat_link = "onclick=\"javascript:viewCategory("+cat_id+")\"";
inner_title_class = "catTitle";
}
var cat_class = "feedCat";
tmp += "<li class=\""+cat_class+"\" id=\"FCAT-"+cat_id+"\">"+
"<img onclick=\"toggleCollapseCat("+cat_id+")\" class=\"catCollapse\""+
" title=\""+__('Click to collapse category')+"\""+
" src=\"images/cat-collapse.png\"><span class=\""+inner_title_class+"\" "+
" id=\"FCATN-"+cat_id+"\" "+browse_cat_link+
"\">"+tmp_category+"</span>";
tmp += "<span id=\"FCAP-"+cat_id+"\">";
tmp += " <span id=\"FCATCTR-"+cat_id+"\" "+
"class=\""+catctr_class+"\">("+cat_unread+")</span> "+ellipsis;
tmp += "</span>";
tmp += "<ul class=\"feedCatList\" id=\"FCATLIST-"+cat_id+"\" "+
"style='"+holder_style+"'>";
return tmp;
} catch (e) {
exception_error("printCategoryHeader", e);
}
}
function is_local_cat_collapsed(id) {
try {
var rs = db.execute("SELECT collapsed FROM categories WHERE id = ?", [id]);
var cat_hidden = 0;
if (rs.isValidRow()) {
cat_hidden = rs.field(0);
}
rs.close();
return cat_hidden == "1";
} catch (e) {
exception_error("is_local_cat_collapsed", e);
}
}
function get_local_article_labels(id) {
try {
var rs = db.execute("SELECT DISTINCT label_id,caption,fg_color,bg_color "+
"FROM labels, article_labels "+
"WHERE labels.id = label_id AND article_labels.id = ?", [id]);
var tmp = new Array();
while (rs.isValidRow()) {
var e = new Array();
e[0] = rs.field(0);
e[1] = rs.field(1);
e[2] = rs.field(2);
e[3] = rs.field(3);
tmp.push(e);
rs.next();
}
return tmp;
} catch (e) {
exception_error("get_local_article_labels", e);
}
}
function label_local_add_article(id, label_id) {
try {
//debug("label_local_add_article " + id + " => " + label_id);
var rs = db.execute("SELECT COUNT(id) FROM article_labels WHERE "+
"id = ? AND label_id = ?", [id, label_id]);
var check = rs.field(0);
if (rs.isValidRow()) {
var check = rs.field(0);
}
rs.close();
if (check == 0) {
db.execute("INSERT INTO article_labels (id, label_id) VALUES "+
"(?,?)", [id, label_id]);
}
} catch (e) {
exception_error("label_local_add_article", e);
}
}
function get_local_feed_title(id) {
try {
var feed_title = "Unknown feed: " + id;
if (id > 0) {
var rs = db.execute("SELECT title FROM feeds WHERE id = ?", [id]);
if (rs.isValidRow()) {
feed_title = rs.field(0);
}
rs.close();
} else if (id == -1) {
feed_title = __("Starred articles");
} else if (id == -4) {
feed_title = __("All articles");
} else if (id < -10) {
var label_id = -11 - id;
var rs = db.execute("SELECT caption FROM labels WHERE id = ?", [label_id]);
if (rs.isValidRow()) {
feed_title = rs.field(0);
}
rs.close();
}
return feed_title;
} catch (e) {
exception_error("get_local_feed_title", e);
}
}
function format_article_labels(labels, id) {
try {
var labels_str = "";
if (!labels) return "";
for (var i = 0; i < labels.length; i++) {
var l = labels[i];
labels_str += "<span class='hlLabelRef' "+
"style='color : "+l[2]+"; background-color : "+l[3]+"'>"+l[1]+"</span>";
}
return labels_str;
} catch (e) {
exception_error("format_article_labels", e);
}
}
function init_local_sync_data() {
try {
if (!db) return;
var rs = db.execute("SELECT COUNT(*) FROM syncdata WHERE key = 'last_online'");
var has_last_online = 0;
if (rs.isValidRow()) {
has_last_online = rs.field(0);
}
rs.close();
if (!has_last_online) {
db.execute("INSERT INTO syncdata (key, value) VALUES ('last_online', '')");
}
} catch (e) {
exception_error("init_local_sync_data", e);
}
}
function has_local_sync_data() {
try {
var rs = db.execute("SELECT id FROM articles "+
"WHERE modified > (SELECT value FROM syncdata WHERE key = 'last_online') "+
"LIMIT 1");
var tmp = 0;
if (rs.isValidRow()) {
tmp = rs.field(0);
}
rs.close();
return tmp != 0;
} catch (e) {
exception_error("has_local_sync_data", e);
}
}
function prepare_local_sync_data() {
try {
var rs = db.execute("SELECT value FROM syncdata WHERE key = 'last_online'");
var last_online = "";
if (rs.isValidRow()) {
last_online = rs.field(0);
}
rs.close();
var rs = db.execute("SELECT id,unread,marked FROM articles "+
"WHERE modified > ? LIMIT 200", [last_online]);
var tmp = last_online + ";";
var entries = 0;
while (rs.isValidRow()) {
var e = new Array();
tmp = tmp + rs.field(0) + "," + rs.field(1) + "," + rs.field(2) + ";";
entries++;
rs.next();
}
rs.close();
if (entries > 0) {
return tmp;
} else {
return '';
}
} catch (e) {
exception_error("prepare_local_sync_data", e);
}
}
function update_local_sync_data() {
try {
if (db && !offline_mode) {
var rs = db.execute("SELECT id FROM articles "+
"WHERE modified > (SELECT value FROM syncdata WHERE "+
"key = 'last_online') LIMIT 1")
var f_id = 0;
if (rs.isValidRow()) {
f_id = rs.field(0);
}
rs.close();
/* no pending articles to sync */
if (f_id == 0) {
db.execute("UPDATE syncdata SET value = DATETIME('NOW', 'localtime') "+
"WHERE key = 'last_online'");
}
}
} catch (e) {
exception_error("update_local_sync_data", e);
}
}
function catchup_local_feed(id, is_cat) {
try {
if (!db) return;
if (!is_cat) {
if (id >= 0) {
db.execute("UPDATE articles SET unread = 0 WHERE feed_id = ?", [id]);
} else if (id == -1) {
db.execute("UPDATE articles SET unread = 0 WHERE marked = 1");
} else if (id == -4) {
db.execute("UPDATE articles SET unread = 0");
} else if (id < -10) {
var label_id = -11-id;
db.execute("UPDATE articles SET unread = 0 WHERE "+
"(SELECT COUNT(*) FROM article_labels WHERE "+
"article_labels.id = articles.id AND label_id = ?) > 0", [label_id]);
}
}
update_local_feedlist_counters();
} catch (e) {
exception_error("catchup_local_feed", e);
}
}
function toggleOfflineModeInfo() {
try {
var e = $('offlineModeDrop');
var p = $('offlineModePic');
if (Element.visible(e)) {
Element.hide(e);
} else {
Element.show(e);
}
} catch (e) {
exception_error("toggleOfflineModeInfo", e);
}
}
function offlineDownloadStart() {
try {
if (db && !sync_in_progress && getInitParam("offline_enabled") == "1") {
window.setTimeout("update_offline_data(0)", 100);
}
} catch (e) {
exception_error("offlineDownloadStart", e);
}
}
function offlineDownloadStop() {
try {
if (db && sync_in_progress && getInitParam("offline_enabled") == "1") {
sync_in_progress = false;
if (sync_timer) {
window.clearTimeout(sync_timer);
sync_timer = false;
}
var pic = $("offlineModePic");
if (pic) {
pic.src = "images/offline.png";
var msg = __("Last sync: Cancelled.");
articles_synced = 0;
$("offlineModeSyncMsg").innerHTML = msg;
}
offlineSyncShowHideElems(false);
}
} catch (e) {
exception_error("offlineDownloadStart", e);
}
}
function offlineClearData() {
try {
if (db) {
if (confirm(__("This will remove all offline data stored by Tiny Tiny RSS on this computer. Continue?"))) {
notify_progress("Removing offline data...");
localServer.removeManagedStore("tt-rss");
db.execute("DELETE FROM articles");
db.execute("DELETE FROM article_labels");
db.execute("DELETE FROM labels");
db.execute("DELETE FROM feeds");
db.execute("DELETE FROM cache");
notify_info("Local data removed.");
}
}
} catch (e) {
exception_error("offlineClearData", e);
}
}
function offlineUpdateStore() {
try {
if (offline_mode || !store) return;
store.checkForUpdate();
var timerId = window.setInterval(function() {
if (store.currentVersion) {
window.clearInterval(timerId);
debug("[Local store] sync complete: " + store.currentVersion);
} else if (store.updateStatus == 3) {
debug("[Local store] sync error: " + store.lastErrorMessage);
} }, 500);
} catch (e) {
exception_error("offlineUpdateStore", e);
}
}
function offlineSyncShowHideElems(syncing) {
try {
var elems = $$("div.hideWhenSyncing");
for (var j = 0; j < elems.length; j++) {
if (syncing) {
Element.hide(elems[j]);
} else {
Element.show(elems[j]);
}
}
var elems = $$("div.showWhenSyncing");
for (var j = 0; j < elems.length; j++) {
if (syncing) {
Element.show(elems[j]);
} else {
Element.hide(elems[j]);
}
}
} catch (e) {
exception_error("offlineSyncShowHideElems", e);
}
}
function offlineConfirmModeChange() {
try {
if (db && getInitParam("offline_enabled") == "1" && offlineArticlesStored() > 0) {
var ok = confirm(__("Tiny Tiny RSS has trouble accessing its server. Would you like to go offline?"));
if (ok) {
init_offline();
}
}
} catch (e) {
exception_error("offlineConfirmModeChange", e);
}
}