a95e14fb4c
Avoid firing multiple server requests if the user is navigating up/down the tree list with the keyboard. Instead, wait till the user has stopped navigating for at least 250ms.
509 行
11 KiB
JavaScript
509 行
11 KiB
JavaScript
var _infscroll_disable = 0;
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var _infscroll_request_sent = 0;
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var _search_query = false;
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var _viewfeed_last = 0;
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var _viewfeed_timeout = false;
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var counters_last_request = 0;
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function viewCategory(cat) {
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viewfeed(cat, '', true);
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return false;
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}
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function loadMoreHeadlines() {
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try {
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console.log("loadMoreHeadlines");
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var offset = 0;
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var view_mode = document.forms["main_toolbar_form"].view_mode.value;
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var unread_in_buffer = $$("#headlines-frame > div[id*=RROW][class*=Unread]").length;
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var num_all = $$("#headlines-frame > div[id*=RROW]").length;
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var num_unread = getFeedUnread(getActiveFeedId(), activeFeedIsCat());
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// TODO implement marked & published
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if (view_mode == "marked") {
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console.warn("loadMoreHeadlines: marked is not implemented, falling back.");
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offset = num_all;
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} else if (view_mode == "published") {
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console.warn("loadMoreHeadlines: published is not implemented, falling back.");
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offset = num_all;
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} else if (view_mode == "unread") {
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offset = unread_in_buffer;
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} else if (_search_query) {
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offset = num_all;
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} else if (view_mode == "adaptive") {
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if (num_unread > 0)
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offset = unread_in_buffer;
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else
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offset = num_all;
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} else {
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offset = num_all;
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}
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console.log("offset: " + offset);
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viewfeed(getActiveFeedId(), '', activeFeedIsCat(), offset, false, true);
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} catch (e) {
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exception_error("viewNextFeedPage", e);
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}
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}
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function viewfeed(feed, method, is_cat, offset, background, infscroll_req, can_wait) {
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try {
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if (is_cat == undefined)
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is_cat = false;
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else
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is_cat = !!is_cat;
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if (method == undefined) method = '';
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if (offset == undefined) offset = 0;
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if (background == undefined) background = false;
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if (infscroll_req == undefined) infscroll_req = false;
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last_requested_article = 0;
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if (feed != getActiveFeedId() || activeFeedIsCat() != is_cat) {
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if (!background && _search_query) _search_query = false;
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}
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if (!background) {
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_viewfeed_last = get_timestamp();
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if (getActiveFeedId() != feed || offset == 0) {
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setActiveArticleId(0);
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_infscroll_disable = 0;
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}
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if (offset != 0 && !method) {
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var timestamp = get_timestamp();
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if (_infscroll_request_sent && _infscroll_request_sent + 30 > timestamp) {
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//console.log("infscroll request in progress, aborting");
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return;
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}
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_infscroll_request_sent = timestamp;
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}
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}
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Form.enable("main_toolbar_form");
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var toolbar_query = Form.serialize("main_toolbar_form");
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var query = "?op=feeds&method=view&feed=" + feed + "&" +
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toolbar_query;
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if (method) {
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query = query + "&m=" + param_escape(method);
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}
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if (!background) {
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if (_search_query) {
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force_nocache = true;
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query = query + "&" + _search_query;
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//_search_query = false;
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}
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if (offset != 0) {
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query = query + "&skip=" + offset;
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// to prevent duplicate feed titles when showing grouped vfeeds
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if (vgroup_last_feed) {
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query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
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}
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} else {
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if (!method && !is_cat && feed == getActiveFeedId()) {
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query = query + "&m=ForceUpdate";
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}
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}
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Form.enable("main_toolbar_form");
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if (!setFeedExpandoIcon(feed, is_cat,
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(is_cat) ? 'images/indicator_tiny.gif' : 'images/indicator_white.gif'))
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notify_progress("Loading, please wait...", true);
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}
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query += "&cat=" + is_cat;
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console.log(query);
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if (can_wait && _viewfeed_timeout) {
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setFeedExpandoIcon(getActiveFeedId(), activeFeedIsCat(), 'images/blank_icon.gif');
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clearTimeout(_viewfeed_timeout);
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}
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setActiveFeedId(feed, is_cat);
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timeout_ms = can_wait ? 250 : 0;
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_viewfeed_timeout = setTimeout(function() {
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new Ajax.Request("backend.php", {
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parameters: query,
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onComplete: function(transport) {
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setFeedExpandoIcon(feed, is_cat, 'images/blank_icon.gif');
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headlines_callback2(transport, offset, background, infscroll_req);
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PluginHost.run(PluginHost.HOOK_FEED_LOADED, [feed, is_cat]);
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} });
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}, timeout_ms); // Wait 250ms
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} catch (e) {
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exception_error("viewfeed", e);
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}
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}
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function feedlist_init() {
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try {
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console.log("in feedlist init");
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loading_set_progress(50);
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document.onkeydown = hotkey_handler;
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setTimeout("hotkey_prefix_timeout()", 5*1000);
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if (!getActiveFeedId()) {
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viewfeed(-3);
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} else {
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viewfeed(getActiveFeedId(), '', activeFeedIsCat());
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}
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hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
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request_counters(true);
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timeout();
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} catch (e) {
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exception_error("feedlist/init", e);
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}
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}
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function request_counters(force) {
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try {
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var date = new Date();
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var timestamp = Math.round(date.getTime() / 1000);
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if (force || timestamp - counters_last_request > 5) {
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console.log("scheduling request of counters...");
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counters_last_request = timestamp;
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var query = "?op=rpc&method=getAllCounters&seq=" + next_seq();
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if (!force)
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query = query + "&last_article_id=" + getInitParam("last_article_id");
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console.log(query);
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new Ajax.Request("backend.php", {
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parameters: query,
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onComplete: function(transport) {
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try {
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handle_rpc_json(transport);
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} catch (e) {
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exception_error("request_counters", e);
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}
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} });
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} else {
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console.log("request_counters: rate limit reached: " + (timestamp - counters_last_request));
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}
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} catch (e) {
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exception_error("request_counters", e);
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}
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}
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function parse_counters(elems, scheduled_call) {
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try {
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for (var l = 0; l < elems.length; l++) {
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var id = elems[l].id;
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var kind = elems[l].kind;
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var ctr = parseInt(elems[l].counter);
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var error = elems[l].error;
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var has_img = elems[l].has_img;
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var updated = elems[l].updated;
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var auxctr = parseInt(elems[l].auxcounter);
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if (id == "global-unread") {
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global_unread = ctr;
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updateTitle();
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continue;
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}
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if (id == "subscribed-feeds") {
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feeds_found = ctr;
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continue;
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}
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if (getFeedUnread(id, (kind == "cat")) != ctr ||
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(kind == "cat")) {
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}
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setFeedUnread(id, (kind == "cat"), ctr);
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setFeedValue(id, (kind == "cat"), 'auxcounter', auxctr);
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if (kind != "cat") {
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setFeedValue(id, false, 'error', error);
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setFeedValue(id, false, 'updated', updated);
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if (id > 0) {
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if (has_img) {
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setFeedIcon(id, false,
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getInitParam("icons_url") + "/" + id + ".ico");
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} else {
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setFeedIcon(id, false, 'images/blank_icon.gif');
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}
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}
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}
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}
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hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
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} catch (e) {
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exception_error("parse_counters", e);
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}
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}
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function getFeedUnread(feed, is_cat) {
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try {
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var tree = dijit.byId("feedTree");
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if (tree && tree.model)
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return tree.model.getFeedUnread(feed, is_cat);
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} catch (e) {
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//
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}
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return -1;
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}
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function getFeedCategory(feed) {
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try {
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var tree = dijit.byId("feedTree");
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if (tree && tree.model)
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return tree.getFeedCategory(feed);
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} catch (e) {
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//
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}
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return false;
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}
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function hideOrShowFeeds(hide) {
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var tree = dijit.byId("feedTree");
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if (tree)
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return tree.hideRead(hide, getInitParam("hide_read_shows_special"));
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}
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function getFeedName(feed, is_cat) {
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var tree = dijit.byId("feedTree");
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if (tree && tree.model)
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return tree.model.getFeedValue(feed, is_cat, 'name');
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}
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function getFeedValue(feed, is_cat, key) {
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try {
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var tree = dijit.byId("feedTree");
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if (tree && tree.model)
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return tree.model.getFeedValue(feed, is_cat, key);
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} catch (e) {
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//
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}
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return '';
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}
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function setFeedUnread(feed, is_cat, unread) {
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try {
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var tree = dijit.byId("feedTree");
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if (tree && tree.model)
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return tree.model.setFeedUnread(feed, is_cat, unread);
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} catch (e) {
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exception_error("setFeedUnread", e);
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}
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}
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function setFeedValue(feed, is_cat, key, value) {
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try {
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var tree = dijit.byId("feedTree");
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if (tree && tree.model)
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return tree.model.setFeedValue(feed, is_cat, key, value);
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} catch (e) {
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//
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}
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}
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function selectFeed(feed, is_cat) {
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try {
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var tree = dijit.byId("feedTree");
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if (tree) return tree.selectFeed(feed, is_cat);
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} catch (e) {
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exception_error("selectFeed", e);
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}
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}
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function setFeedIcon(feed, is_cat, src) {
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try {
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var tree = dijit.byId("feedTree");
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if (tree) return tree.setFeedIcon(feed, is_cat, src);
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} catch (e) {
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exception_error("setFeedIcon", e);
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}
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}
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function setFeedExpandoIcon(feed, is_cat, src) {
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try {
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var tree = dijit.byId("feedTree");
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if (tree) return tree.setFeedExpandoIcon(feed, is_cat, src);
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} catch (e) {
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exception_error("setFeedIcon", e);
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}
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return false;
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}
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function getNextUnreadFeed(feed, is_cat) {
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try {
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var tree = dijit.byId("feedTree");
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var nuf = tree.model.getNextUnreadFeed(feed, is_cat);
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if (nuf)
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return tree.model.store.getValue(nuf, 'bare_id');
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} catch (e) {
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exception_error("getNextUnreadFeed", e);
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}
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}
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function catchupCurrentFeed(mode) {
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catchupFeed(getActiveFeedId(), activeFeedIsCat(), mode);
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}
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function catchupFeedInGroup(id) {
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try {
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var title = getFeedName(id);
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var str = __("Mark all articles in %s as read?").replace("%s", title);
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if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
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return viewCurrentFeed('MarkAllReadGR:' + id);
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}
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} catch (e) {
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exception_error("catchupFeedInGroup", e);
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}
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}
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function catchupFeed(feed, is_cat, mode) {
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try {
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if (is_cat == undefined) is_cat = false;
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var str = false;
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switch (mode) {
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case "1day":
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str = __("Mark all articles in %s older than 1 day as read?");
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break;
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case "1week":
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str = __("Mark all articles in %s older than 1 week as read?");
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break;
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case "2week":
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str = __("Mark all articles in %s older than 2 weeks as read?");
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break;
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default:
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str = __("Mark all articles in %s as read?");
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}
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var fn = getFeedName(feed, is_cat);
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str = str.replace("%s", fn);
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if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
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return;
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}
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var catchup_query = "?op=rpc&method=catchupFeed&feed_id=" +
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feed + "&is_cat=" + is_cat + "&mode=" + mode;
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console.log(catchup_query);
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notify_progress("Loading, please wait...", true);
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new Ajax.Request("backend.php", {
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parameters: catchup_query,
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onComplete: function(transport) {
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handle_rpc_json(transport);
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var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
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if (show_next_feed) {
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var nuf = getNextUnreadFeed(feed, is_cat);
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if (nuf) {
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viewfeed(nuf, '', is_cat);
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}
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} else {
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if (feed == getActiveFeedId() && is_cat == activeFeedIsCat()) {
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viewCurrentFeed();
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}
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}
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notify("");
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} });
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} catch (e) {
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exception_error("catchupFeed", e);
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}
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}
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function decrementFeedCounter(feed, is_cat) {
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try {
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var ctr = getFeedUnread(feed, is_cat);
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if (ctr > 0) {
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setFeedUnread(feed, is_cat, ctr - 1);
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global_unread = global_unread - 1;
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updateTitle();
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if (!is_cat) {
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var cat = parseInt(getFeedCategory(feed));
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if (!isNaN(cat)) {
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ctr = getFeedUnread(cat, true);
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if (ctr > 0) {
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setFeedUnread(cat, true, ctr - 1);
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}
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}
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}
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}
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} catch (e) {
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exception_error("decrement_feed_counter", e);
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}
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}
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