store active feed id in url hash and restore on reload

js/feedlist.js

@@ -204,11 +204,11 @@ function feedlist_init() {
 		document.onkeydown = hotkey_handler;
 		setTimeout("hotkey_prefix_timeout()", 5*1000);
 
-		 if (!getActiveFeedId())
-			 viewfeed(-3);
-
-		console.log("T:" +
-				getInitParam("cdm_auto_catchup") + " " + getFeedUnread(-3));
+		if (!getActiveFeedId()) {
+			viewfeed(-3);
+		} else {
+ 			viewfeed(getActiveFeedId(), '', activeFeedIsCat());
+		}
 
 		hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 

js/tt-rss.js

@@ -1,6 +1,4 @@
 var global_unread = -1;
-var _active_feed_id = undefined;
-var _active_feed_is_cat = false;
 var hotkey_prefix = false;
 var hotkey_prefix_pressed = false;
 var _widescreen_mode = false;
@@ -16,13 +14,12 @@ function get_seq() {
 }
 
 function activeFeedIsCat() {
-	return _active_feed_is_cat;
+	return hash_get('c') == "1";
 }
 
 function getActiveFeedId() {
 	try {
-		//console.log("gAFID: " + _active_feed_id);
-		return _active_feed_id;
+		return hash_get('f');
 	} catch (e) {
 		exception_error("getActiveFeedId", e);
 	}
@@ -30,11 +27,8 @@ function getActiveFeedId() {
 
 function setActiveFeedId(id, is_cat) {
 	try {
-		_active_feed_id = id;
-
-		if (is_cat != undefined) {
-			_active_feed_is_cat = is_cat;
-		}
+		hash_set('f', id);
+		hash_set('c', is_cat ? 1 : 0);
 
 		selectFeed(id, is_cat);
 	} catch (e) {
@@ -948,3 +942,21 @@ function update_random_feed() {
 		exception_error("update_random_feed", e);
 	}
 }
+
+function hash_get(key) {
+	try {
+		kv = window.location.hash.substring(1).toQueryParams();
+		return kv[key];
+	} catch (e) {
+		exception_error("hash_set", e);
+	}
+}
+function hash_set(key, value) {
+	try {
+		kv = window.location.hash.substring(1).toQueryParams();
+		kv[key] = value;
+		window.location.hash = $H(kv).toQueryString();
+	} catch (e) {
+		exception_error("hash_set", e);
+	}
+}

js/viewfeed.js

@@ -59,7 +59,7 @@ function headlines_callback2(transport, offset, background, infscroll_req) {
 					is_cat || feed_id <= 0);
 
 			try {
-				if (offset == 0 && infscroll_req == false) {
+				if (infscroll_req == false) {
 					$("headlines-frame").scrollTop = 0;
 				}
 			} catch (e) { };
@@ -78,7 +78,7 @@ function headlines_callback2(transport, offset, background, infscroll_req) {
 			var articles = reply['articles'];
 			//var runtime_info = reply['runtime-info'];
 
-			if (offset == 0 && infscroll_req == false) {
+			if (infscroll_req == false) {
 				loaded_article_ids = [];
 
 				dijit.byId("headlines-frame").attr('content',