add experimental floating title when scrolling long articles in combined mode

classes/feeds.php

@@ -593,7 +593,7 @@ class Feeds extends Handler_Protected {
 					$reply['content'] .= "<span class='updated' title='$date_entered_fmt'>
 						$updated_fmt</span>";
 
-					$reply['content'] .= "<div style=\"vertical-align : middle\">";
+					$reply['content'] .= "<div class='scoreWrap' style=\"vertical-align : middle\">";
 					$reply['content'] .= "$score_pic";
 
 					if (!get_pref("VFEED_GROUP_BY_FEED") && $line["feed_title"]) {

css/cdm.css

@@ -215,3 +215,35 @@ div.cdmHeader span.author {
 }
 
 
+div#floatingTitle {
+	position : absolute;
+	z-index : 5;
+	top : 30px;
+	right : 20px;
+	border : 1px solid #ccc;
+	background : white;
+	border-radius : 3px;
+	box-shadow : 0px 0px 3px 0px rgba(0,0,0,0.1);
+	color : #555;
+	font-size : 10px;
+	padding : 3px;
+}
+
+div#floatingTitle > * {
+	display : table-cell;
+	white-space : nowrap;
+	vertical-align : middle;
+}
+
+div#floatingTitle img {
+	padding-right : 3px;
+}
+
+div#floatingTitle .dijit, 
+div#floatingTitle span.updated, 
+div#floatingTitle div.scoreWrap,
+div#floatingTitle div.hlFeed, 
+div#floatingTitle span.author, 
+div#floatingTitle img.tinyFeedIcon {
+	display : none;
+}

css/tt-rss.css

@@ -1109,3 +1109,4 @@ body#ttrssPrefs hr {
 .dijitTreeRowSelected .dijitTreeLabel {
 	text-shadow : 1px 1px 2px #fff;
 }
+

index.php

@@ -260,6 +260,8 @@
 		<div id="headlines-toolbar" dojoType="dijit.layout.ContentPane" region="top">
 		</div>
 
+		<div id="floatingTitle" style="display : none"></div>
+
 		<div id="headlines-frame" dojoType="dijit.layout.ContentPane"
 				onscroll="headlines_scroll_handler(this)" region="center">
 			<div id="headlinesInnerContainer">

js/viewfeed.js

@@ -444,7 +444,21 @@ function toggleMark(id, client_only) {
 		var row = $("RROW-" + id);
 		if (!row) return;
 
-		var imgs = row.getElementsByClassName("markedPic");
+		var imgs = [];
+
+		var row_imgs = row.getElementsByClassName("markedPic");
+
+		for (var i = 0; i < row_imgs.length; i++)
+			imgs.push(row_imgs[i]);
+
+		var ft = $("floatingTitle");
+
+		if (ft && ft.getAttribute("rowid") == "RROW-" + id) {
+			var fte = ft.getElementsByClassName("markedPic");
+
+			for (var i = 0; i < fte.length; i++)
+				imgs.push(fte[i]);
+		}
 
 		for (i = 0; i < imgs.length; i++) {
 			var img = imgs[i];
@@ -488,7 +502,21 @@ function togglePub(id, client_only, no_effects, note) {
 		var row = $("RROW-" + id);
 		if (!row) return;
 
-		var imgs = row.getElementsByClassName("pubPic");
+		var imgs = [];
+
+		var row_imgs = row.getElementsByClassName("pubPic");
+
+		for (var i = 0; i < row_imgs.length; i++)
+			imgs.push(row_imgs[i]);
+
+		var ft = $("floatingTitle");
+
+		if (ft && ft.getAttribute("rowid") == "RROW-" + id) {
+			var fte = ft.getElementsByClassName("pubPic");
+
+			for (var i = 0; i < fte.length; i++)
+				imgs.push(fte[i]);
+		}
 
 		for (i = 0; i < imgs.length; i++) {
 			var img = imgs[i];
@@ -1280,6 +1308,10 @@ function headlines_scroll_handler(e) {
 			if (hsp) hsp.innerHTML = "";
 		}
 
+		if (getInitParam("cdm_expanded") && isCdmMode()) {
+			updateFloatingTitle();
+		}
+
 		if (getInitParam("cdm_auto_catchup") == 1) {
 
 			// let's get DOM some time to settle down
@@ -2157,3 +2189,34 @@ function openSelectedAttachment(elem) {
 		exception_error("openSelectedAttachment", e);
 	}
 }
+
+function updateFloatingTitle() {
+	try {
+		var hf = $("headlines-frame");
+
+		var elems = $$("#headlines-frame > div[id*=RROW]");
+
+		for (var i = 0; i < elems.length; i++) {
+			var child = elems[i];
+
+			if (child.offsetTop + child.offsetHeight > hf.scrollTop) {
+
+				var header = child.getElementsByClassName("cdmHeader")[0];
+
+				$("floatingTitle").setAttribute("rowid", child.id);
+				$("floatingTitle").innerHTML =
+					header.innerHTML;
+
+				if (child.offsetTop < hf.scrollTop - header.offsetHeight - 100 &&
+						child.offsetTop + child.offsetHeight - hf.scrollTop > 100)
+					Element.show("floatingTitle");
+				else
+					Element.hide("floatingTitle");
+
+				break;
+			}
+		}
+	} catch (e) {
+		exception_error("updateFloatingTitle", e);
+	}
+}