Merge branch 'digest-experimental'

1 files changed, 809 insertions, 0 deletions

diff --git a/digest.js b/digest.js
new file mode 100644
index 000000000..98ae14d8c
--- /dev/null
+++ b/digest.js
@@ -0,0 +1,809 @@
+var last_feeds = [];
+var init_params = {};
+
+var db = false;
+var store = false;
+
+var _active_feed_id = false;
+var _active_feed_offset = false;
+var _update_timeout = false;
+var _view_update_timeout = false;
+var _feedlist_expanded = false;
+var _update_seq = 1;
+
+function article_appear(article_id) {
+	try {
+		new Effect.Appear('A-' + article_id);
+	} catch (e) {
+		exception_error("article_appear", e);
+	}
+}
+
+function catchup_feed(feed_id, callback) {
+	try {
+
+		var fn = find_feed(last_feeds, feed_id).title;
+
+		if (confirm(__("Mark all articles in %s as read?").replace("%s", fn))) {
+
+			var is_cat = "";
+
+			if (feed_id < 0) is_cat = "true"; // KLUDGE
+
+			var query = "?op=rpc&subop=catchupFeed&feed_id=" + 
+				feed_id + "&is_cat=" + is_cat;
+
+			new Ajax.Request("backend.php",	{
+				parameters: query, 
+				onComplete: function(transport) {
+					if (callback) callback(transport);
+	
+					update();
+				} });
+		}
+
+	} catch (e) {
+		exception_error("catchup_article", e);
+	}
+}
+
+function get_visible_article_ids() {
+	try {
+		var elems = $("headlines-content").getElementsByTagName("LI");
+		var ids = [];
+			
+		for (var i = 0; i < elems.length; i++) {
+			if (elems[i].id && elems[i].id.match("A-")) {
+			ids.push(elems[i].id.replace("A-", ""));
+			}
+		}
+
+		return ids;
+
+	} catch (e) {
+		exception_error("get_visible_article_ids", e);
+	}
+}
+
+function catchup_visible_articles(callback) {
+	try {
+
+		var ids = get_visible_article_ids();
+
+		if (confirm(__("Mark %d displayed articles as read?").replace("%d", ids.length))) {
+
+			var query = "?op=rpc&subop=catchupSelected" +
+				"&cmode=0&ids=" + param_escape(ids);
+	
+			new Ajax.Request("backend.php",	{
+				parameters: query, 
+				onComplete: function(transport) {
+					if (callback) callback(transport);
+	
+					viewfeed(_active_feed_id, 0);
+				} });
+	
+			}
+
+	} catch (e) {
+		exception_error("catchup_visible_articles", e);
+	}
+}
+
+function catchup_article(article_id, callback) {
+	try {
+		var query = "?op=rpc&subop=catchupSelected" +
+			"&cmode=0&ids=" + article_id;
+
+		new Ajax.Request("backend.php",	{
+			parameters: query, 
+			onComplete: function(transport) {
+				if (callback) callback(transport);
+			} });
+
+	} catch (e) {
+		exception_error("catchup_article", e);
+	}
+}
+
+function set_selected_feed(feed_id) {
+	try {
+		var feeds = $("feeds-content").getElementsByTagName("LI");
+
+		for (var i = 0; i < feeds.length; i++) {
+			if (feeds[i].id == "F-" + feed_id)
+				feeds[i].className = "selected";
+			else
+				feeds[i].className = "";
+		}
+
+		_active_feed_id = feed_id;
+
+	} catch (e) {
+		exception_error("mark_selected_feed", e);
+	}
+}
+
+function zoom(elem, article_id) {
+	try {
+		//alert(elem + "/" + article_id);
+
+		elem.innerHTML = "<img src='images/indicator_tiny.gif'> " +
+			__("Loading, please wait...");
+
+		new Ajax.Request("backend.php",	{
+			parameters: "?op=rpc&subop=digest-get-contents&article_id=" +
+				article_id,
+			onComplete: function(transport) {
+				fatal_error_check(transport);
+
+				if (transport.responseXML) {
+					var article = transport.responseXML.getElementsByTagName('article')[0];
+					elem.innerHTML = article.firstChild.nodeValue;
+
+					new Effect.BlindDown(elem, {duration : 0.5});
+
+					elem.onclick = false;
+					elem.style.cursor = "auto";
+
+					catchup_article(article_id, 
+						function() { 							
+							window.clearTimeout(_view_update_timeout);
+							_view_update_timeout = window.setTimeout("view_update()", 500);
+							$("A-" + article_id).className = "read";
+					});
+
+
+				} else {
+					elem.innerHTML = __("Error: unable to load article.");
+				}
+				
+				} });
+
+
+	} catch (e) {
+		exception_error("zoom", e);
+	}
+}
+
+function load_more() {
+	try {
+		var pr = $("H-LOADING-IMG");
+
+		if (pr) Element.show(pr);
+
+		viewfeed(_active_feed_id, _active_feed_offset + 10, false, false, true,
+			function() { 
+				var pr = $("H-LOADING-IMG");
+
+				if (pr) Element.hide(pr);	
+			});
+	} catch (e) {
+		exception_error("load_more", e);
+	}
+}
+
+function update(callback) {
+	try {
+		console.log('updating feeds...');
+
+		window.clearTimeout(_update_timeout);
+
+		new Ajax.Request("backend.php",	{
+			parameters: "?op=rpc&subop=digest-init",
+			onComplete: function(transport) {
+				fatal_error_check(transport);
+				parse_feeds(transport);
+				set_selected_feed(_active_feed_id);
+
+				if (callback) callback(transport);
+				} });
+
+		_update_timeout = window.setTimeout('update()', 5*1000);
+	} catch (e) {
+		exception_error("update", e);
+	}
+}
+
+function remove_headline_entry(article_id) {
+	try {
+		var elem = $('A-' + article_id);
+
+		if (elem) {
+			elem.parentNode.removeChild(elem);
+		}
+
+	} catch (e) {
+		exception_error("remove_headline_entry", e);
+	}
+}
+
+function view_update() {
+	try {
+		viewfeed(_active_feed_id, _active_feed_offset, false, true, true);
+		update();
+	} catch (e) {
+		exception_error("view_update", e);
+	}
+}
+
+function view(article_id, dismiss_only) {
+	try {
+		remove_headline_entry(article_id);
+
+		catchup_article(article_id, 
+			function() { 
+				window.clearTimeout(_view_update_timeout);
+				_view_update_timeout = window.setTimeout("view_update()", 500);
+			});
+
+		return dismiss_only != true;
+	} catch (e) {
+		exception_error("view", e);
+	}
+}
+
+function viewfeed(feed_id, offset, replace, no_effects, no_indicator, callback) {
+	try {
+
+		if (!feed_id) feed_id = _active_feed_id;
+
+		if (!offset) {
+			offset = 0;
+		} else {
+			offset = _active_feed_offset + offset;
+		}
+
+		if (replace == undefined) replace = (offset == 0);
+
+		_update_seq = _update_seq + 1;
+
+		var query = "backend.php?op=rpc&subop=digest-update&feed_id=" + 
+				param_escape(feed_id) +	"&offset=" + offset +
+				"&seq=" + _update_seq;
+
+		console.log(query);
+
+		if ($("F-" + feed_id)) {
+			var img = $("F-" + feed_id).getElementsByTagName("IMG")[0];
+
+			if (img && !no_indicator) {
+				img.setAttribute("orig_src", img.src);
+				img.src = 'images/indicator_tiny.gif';
+			}
+		}
+
+		new Ajax.Request("backend.php",	{
+			parameters: query, 
+			onComplete: function(transport) {
+				Element.hide("overlay");
+
+				fatal_error_check(transport);
+				parse_headlines(transport, replace, no_effects);
+				set_selected_feed(feed_id);				
+				_active_feed_offset = offset;
+
+				if (img && !no_indicator)
+					img.src = img.getAttribute("orig_src");
+
+				if (callback) callback(transport);
+
+			} });
+
+	} catch (e) {
+		exception_error("view", e);
+	}
+}
+
+function find_article(articles, article_id) {
+	try {
+		for (var i = 0; i < articles.length; i++) {
+			if (articles[i].id == article_id)
+				return articles[i];
+		}
+
+		return false;
+
+	} catch (e) {
+		exception_error("find_article", e);
+	}
+}
+
+function find_feed(feeds, feed_id) {
+	try {
+		for (var i = 0; i < feeds.length; i++) {
+			if (feeds[i].id == feed_id)
+				return feeds[i];
+		}
+
+		return false;
+
+	} catch (e) {
+		exception_error("find_feed", e);
+	}
+}
+
+function get_feed_icon(feed) {
+	try {
+		if (feed.has_icon)
+			return getInitParam('icons_location') + "/" + feed.id + '.ico';
+
+		if (feed.id == -1)
+			return 'images/mark_set.png';
+
+		if (feed.id == -2)
+			return 'images/pub_set.png';
+
+		if (feed.id == -3)
+			return 'images/fresh.png';
+
+		if (feed.id == -4) 
+			return 'images/tag.png';
+
+		if (feed.id < -10) 
+			return 'images/label.png';
+
+		return 'images/blank_icon.gif';
+
+	} catch (e) {
+		exception_error("get_feed_icon", e);
+	}
+}
+
+function add_feed_entry(feed) {
+	try {
+		var icon_part = "";
+
+		icon_part = "<img src='" + get_feed_icon(feed) + "'/>";
+
+		var tmp_html = "<li id=\"F-"+feed.id+"\" " +
+				"onmouseover=\"feed_mi(this)\" onmouseout=\"feed_mo(this)\">" + 
+			icon_part +
+			"<a href=\"#\" onclick=\"viewfeed("+feed.id+")\">" + feed.title + "</a>" +
+			"<div class='unread-ctr'>" + 
+				"<img onclick=\"catchup_feed("+feed.id+")\" title=\"" + 
+					__("Mark as read") + 
+					"\" class=\"dismiss\" style='display : none' src=\"images/digest_checkbox.png\">" +
+				"<span class=\"unread\">" + feed.unread + "</span>" + 
+			"</div>" +	
+			"</li>";
+
+		$("feeds-content").innerHTML += tmp_html;
+
+	} catch (e) {
+		exception_error("add_feed_entry", e);
+	}
+}
+
+function add_headline_entry(article, feed, no_effects) {
+	try {
+
+		var icon_part = "";
+
+		icon_part = "<img class='icon' src='" + get_feed_icon(feed) + "'/>";
+
+		var mark_part = "";
+		var publ_part = "";
+
+		var tags_part = "";
+
+		if (article.tags.length > 0) {
+
+			tags_part = " " + __("in") + " ";
+
+			for (var i = 0; i < Math.min(5, article.tags.length); i++) {
+				tags_part += "<a href=\"#\" onclick=\"viewfeed('" + 
+						article.tags[i] + "')\">" + 
+					article.tags[i] + "</a>, ";
+			}
+
+			tags_part = tags_part.replace(/, $/, "");
+			tags_part = "<span class=\"tags\">" + tags_part + "</span>";
+		}
+
+		if (article.marked)
+			mark_part = "<img title='"+ __("Unstar article")+"' onclick=\"toggle_mark(this, "+article.id+")\" src='images/mark_set.png'>";
+		else
+			mark_part =	"<img title='"+__("Star article")+"' onclick=\"toggle_mark(this, "+article.id+")\" src='images/mark_unset.png'>";
+
+		if (article.published)
+			publ_part = "<img title='"+__("Unpublish article")+"' onclick=\"toggle_pub(this, "+article.id+")\" src='images/pub_set.png'>";
+		else
+			publ_part =	"<img title='"+__("Publish article")+"' onclick=\"toggle_pub(this, "+article.id+")\" src='images/pub_unset.png'>";
+
+		var style = "";
+
+		if (!no_effects) style = "style=\"display : none\"";
+
+		if (article.excerpt.trim() == "")
+			article.excerpt = __("Click to expand article.");
+
+		var li_class = "unread";
+
+		var fresh_max = getInitParam("fresh_article_max_age") * 60 * 60;
+		var d = new Date();
+
+		if (d.getTime() / 1000 - article.updated < fresh_max)
+			li_class = "fresh";
+
+		var tmp_html = "<li id=\"A-"+article.id+"\" "+style+" class=\""+li_class+"\">" + 
+			icon_part +
+
+			"<div class='digest-check'>" +
+				mark_part +
+				publ_part +
+				"<img title='" + __("Mark as read") + "' onclick=\"view("+article.id+", true)\" src='images/digest_checkbox.png'>" +
+			"</div>" + 
+			"<a target=\"_blank\" href=\""+article.link+"\""+
+		  		"onclick=\"return view("+article.id+")\" class='title'>" + 
+				article.title + "</a>" +
+			"<div class='body'>" + 
+			"<div title=\""+__("Click to expand article")+"\" onclick=\"zoom(this, "+article.id+")\" class='excerpt'>" + 
+				article.excerpt + "</div>" +
+			"<div class='info'><a href=\#\" onclick=\"viewfeed("+feed.id+")\">" + 
+				feed.title + "</a> " + tags_part + " @ " + 
+				new Date(article.updated * 1000) + "</div>" +
+			"</div></li>";
+
+		$("headlines-content").innerHTML += tmp_html;
+
+		if (!no_effects)
+			window.setTimeout('article_appear(' + article.id + ')', 100);
+
+	} catch (e) {
+		exception_error("add_headline_entry", e);
+	}
+}
+
+function expand_feeds() {
+	try {
+		_feedlist_expanded = true;
+
+		redraw_feedlist(last_feeds);
+
+	} catch (e) {
+		exception_error("expand_feeds", e);
+	}
+}
+
+function redraw_feedlist(feeds) {
+	try {
+
+		$('feeds-content').innerHTML = "";
+
+		var limit = 10;
+
+		if (_feedlist_expanded) limit = feeds.length;
+
+		for (var i = 0; i < Math.min(limit, feeds.length); i++) {
+			add_feed_entry(feeds[i]);
+		}
+
+		if (feeds.length > limit) {
+			$('feeds-content').innerHTML += "<li id='F-MORE-PROMPT'>" +
+				"<img src='images/blank_icon.gif'>" + 
+				"<a href=\"#\" onclick=\"expand_feeds()\">" +
+				__("%d more...").replace("%d", feeds.length-10) + 
+				"</a>" + "</li>";
+		}
+
+	} catch (e) {
+		exception_error("redraw_feedlist", e);
+	}
+}
+
+function parse_feeds(transport) {
+	try {
+
+		if (!transport.responseXML) return;
+
+		var feeds = transport.responseXML.getElementsByTagName('feeds')[0];
+
+		if (feeds) {
+			feeds = eval("(" + feeds.firstChild.nodeValue + ")");
+
+			feeds.sort( function (a,b) 
+				{ 
+					if (b.unread != a.unread)
+						return (b.unread - a.unread) 
+					else
+						if (a.title > b.title)
+							return 1;
+						else if (a.title < b.title)
+							return -1;
+						else
+							return 0;					
+				});
+
+			var all_articles = find_feed(feeds, -4);
+
+			update_title(all_articles.unread);
+
+			last_feeds = feeds;
+
+			redraw_feedlist(feeds);
+		}
+
+	} catch (e) {
+		exception_error("parse_feeds", e);
+	}
+}
+
+function parse_headlines(transport, replace, no_effects) {
+	try {
+		if (!transport.responseXML) return;
+
+		var seq = transport.responseXML.getElementsByTagName('seq')[0];
+
+		if (seq) {
+			seq = seq.firstChild.nodeValue;
+			if (seq != _update_seq) {
+				console.log("parse_headlines: wrong sequence received.");
+				return;
+			}
+		} else {
+			return;
+		}
+
+		var headlines = transport.responseXML.getElementsByTagName('headlines')[0];
+		var headlines_title = transport.responseXML.getElementsByTagName('headlines-title')[0];
+
+		if (headlines && headlines_title) {
+			headlines = eval("(" + headlines.firstChild.nodeValue + ")");
+
+			var title = headlines_title.firstChild.nodeValue;
+
+			$("headlines-title").innerHTML = title;
+
+			if (replace) {
+				$('headlines-content').innerHTML = '';
+				Element.hide('headlines-content');
+			}
+
+			var pr = $('H-MORE-PROMPT');
+
+			if (pr) pr.parentNode.removeChild(pr);
+
+			var inserted = false;
+
+			for (var i = 0; i < headlines.length; i++) {
+				
+				if (!$('A-' + headlines[i].id)) {
+					add_headline_entry(headlines[i], 
+							find_feed(last_feeds, headlines[i].feed_id), !no_effects);
+
+					inserted = $("A-" + headlines[i].id);
+				}
+			}
+
+			var ids = get_visible_article_ids();
+
+			if (ids.length > 0) {
+				if (pr) {
+					$('headlines-content').appendChild(pr);
+					if (!no_effects) new Effect.ScrollTo(inserted);
+				} else {
+					$('headlines-content').innerHTML += "<li id='H-MORE-PROMPT'>" +
+						"<div class='body'>" +
+						"<a href=\"javascript:catchup_visible_articles()\">" +
+					  	__("Mark as read") + "</a> | " + 
+						"<a href=\"javascript:load_more()\">" +
+					  	__("Load more...") + "</a>" + 
+						"<img style=\"display : none\" "+
+						"id=\"H-LOADING-IMG\" src='images/indicator_tiny.gif'>" +
+						"</div></li>";
+				}
+			} else {
+				// FIXME : display some kind of "nothing to see here" prompt here
+			}
+
+			if (replace && !no_effects) 
+				new Effect.Appear('headlines-content', {duration : 0.3});
+
+			//new Effect.Appear('headlines-content');
+		}
+
+	} catch (e) {
+		exception_error("parse_headlines", e);
+	}
+}
+
+function init_second_stage() {
+	try {
+		new Ajax.Request("backend.php",	{
+			parameters: "backend.php?op=rpc&subop=digest-init",
+			onComplete: function(transport) {
+				parse_feeds(transport);
+				window.setTimeout('viewfeed(-4)', 100);
+				_update_timeout = window.setTimeout('update()', 5*1000);
+				} });
+
+	} catch (e) {
+		exception_error("init_second_stage", e);
+	}
+}
+
+function init() {
+	try {
+
+		new Ajax.Request("backend.php", {
+			parameters: "?op=rpc&subop=sanityCheck",
+			onComplete: function(transport) { 
+				backend_sanity_check_callback(transport);
+			} });
+
+	} catch (e) {
+		exception_error("digest_init", e);
+	}
+}
+
+function toggle_mark(mark_img, id) {
+
+	try {
+
+		var query = "?op=rpc&id=" + id + "&subop=mark";
+	
+		query = query + "&afid=" + _active_feed_id;
+		query = query + "&omode=c";
+
+		if (!mark_img) return;
+
+		if (mark_img.src.match("mark_unset")) {
+			mark_img.src = mark_img.src.replace("mark_unset", "mark_set");
+			mark_img.alt = __("Unstar article");
+			query = query + "&mark=1";
+		} else {
+			mark_img.alt = __("Please wait...");
+			query = query + "&mark=0";
+	
+			mark_img.src = mark_img.src.replace("mark_set", "mark_unset");
+			mark_img.alt = __("Star article");
+		}
+
+		new Ajax.Request("backend.php", {
+			parameters: query,
+			onComplete: function(transport) { 
+				update();
+			} });
+
+	} catch (e) {
+		exception_error("toggle_mark", e);
+	}
+}
+
+function toggle_pub(mark_img, id, note) {
+
+	try {
+
+		var query = "?op=rpc&id=" + id + "&subop=publ";
+	
+		query = query + "&afid=" + _active_feed_id;
+
+		if (note != undefined) {
+			query = query + "&note=" + param_escape(note);
+		} else {
+			query = query + "&note=undefined";
+		}
+
+		query = query + "&omode=c";
+
+		if (!mark_img) return;
+
+		if (mark_img.src.match("pub_unset") || note != undefined) {
+			mark_img.src = mark_img.src.replace("pub_unset", "pub_set");
+			mark_img.alt = __("Unpublish article");
+			query = query + "&pub=1";
+
+		} else {
+			mark_img.alt = __("Please wait...");
+			query = query + "&pub=0";
+	
+			mark_img.src = mark_img.src.replace("pub_set", "pub_unset");
+			mark_img.alt = __("Publish article");
+		}
+
+		new Ajax.Request("backend.php", {
+			parameters: query,
+			onComplete: function(transport) { 
+				update();
+			} });
+
+	} catch (e) {
+		exception_error("toggle_pub", e);
+	}
+}
+
+function fatal_error(code, msg) {
+	try {	
+
+		if (code == 6) {
+			window.location.href = "digest.php";
+		} else if (code == 5) {
+			window.location.href = "update.php";
+		} else {
+	
+			if (msg == "") msg = "Unknown error";
+
+			console.error("Fatal error: " + code + "\n" + 
+				msg);
+			
+		}
+
+	} catch (e) {
+		exception_error("fatalError", e);
+	}
+}
+
+function fatal_error_check(transport) {
+	try {
+		if (transport.responseXML) {
+			var error = transport.responseXML.getElementsByTagName("error")[0];
+
+			if (error) {
+				var code = error.getAttribute("error-code");
+				var msg = error.getAttribute("error-msg");
+				if (code != 0) {
+					fatal_error(code, msg);
+					return false;
+				}
+			}
+		}
+	} catch (e) {
+		exception_error("fatal_error_check", e);
+	}
+	return true;
+}
+
+function feed_mi(elem) {
+	try {
+		var imgs = elem.getElementsByTagName('IMG');
+		var spans = elem.getElementsByTagName('SPAN');
+
+		for (var i = 0; i < imgs.length; i++) {
+			if (imgs[i].className == "dismiss")
+				Element.show(imgs[i]);
+		}
+
+		for (var i = 0; i < spans.length; i++) {
+			if (spans[i].className == "unread")
+				Element.hide(spans[i]);
+		}
+
+
+	} catch (e) {
+		exception_error("feed_mi", e);
+	}
+}
+
+function feed_mo(elem) {
+	try {
+		var imgs = elem.getElementsByTagName('IMG');
+		var spans = elem.getElementsByTagName('SPAN');
+
+		for (var i = 0; i < imgs.length; i++) {
+			if (imgs[i].className == "dismiss")
+				Element.hide(imgs[i]);
+		}
+
+		for (var i = 0; i < spans.length; i++) {
+			if (spans[i].className == "unread")
+				Element.show(spans[i]);
+		}
+
+	} catch (e) {
+		exception_error("feed_mo", e);
+	}
+}
+
+function update_title(unread) {
+	try {
+		document.title = "Tiny Tiny RSS";
+
+		if (unread > 0)
+			document.title += " (" + unread + ")";
+
+	} catch (e) {
+		exception_error("update_title", e);
+	}
+}
+