From 4681834e66e46584684cb4d28feb50ab00237cf3 Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <fox@bah.org.ru>
Date: Wed, 4 Feb 2009 10:17:55 +0300
Subject: [PATCH] add offline.js

---
 offline.js | 492 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 492 insertions(+)
 create mode 100644 offline.js

diff --git a/offline.js b/offline.js
new file mode 100644
index 000000000..371aeecf0
--- /dev/null
+++ b/offline.js
@@ -0,0 +1,492 @@
+function view_offline(id, feed_id) {
+	try {
+
+		enableHotkeys();
+		showArticleInHeadlines(id);
+
+		if (db) {
+			db.execute("UPDATE articles SET unread = 0 WHERE id = ?", [id]);
+		}
+
+		render_article("FIXME");
+		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");
+
+		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);
+	}
+}