From: Michael M Slusarz <slusarz@curecanti.org>
Date: Fri, 20 Nov 2009 22:22:49 +0000 (-0700)
Subject: Add ViewPort.currentViewableRange()
X-Git-Url: https://git.internetallee.de/?a=commitdiff_plain;h=8472b7a832695bde935f9663a0dc8ecdb2a96c02;p=horde.git

Add ViewPort.currentViewableRange()
---

diff --git a/imp/js/DimpBase.js b/imp/js/DimpBase.js
index 3cb4214a5..5a45a6e2b 100644
--- a/imp/js/DimpBase.js
+++ b/imp/js/DimpBase.js
@@ -1301,12 +1301,12 @@ var DimpBase = {
 
     setMessageListTitle: function()
     {
-        var offset,
+        var range,
             rows = this.viewport.getMetaData('total_rows');
 
-        if (rows > 0) {
-            offset = this.viewport.currentOffset();
-            $('msgHeader').update(DIMP.text.messages + ' ' + (offset + 1) + ' - ' + (Math.min(offset + this.viewport.getPageSize(), rows)) + ' ' + DIMP.text.of + ' ' + rows);
+        if (rows) {
+            range = this.viewport.currentViewableRange();
+            $('msgHeader').update(DIMP.text.messages + ' ' + range.first + ' - ' + range.last + ' ' + DIMP.text.of + ' ' + rows);
         } else {
             $('msgHeader').update(DIMP.text.nomessages);
         }
diff --git a/imp/js/ViewPort.js b/imp/js/ViewPort.js
index 52812199b..517b49f83 100644
--- a/imp/js/ViewPort.js
+++ b/imp/js/ViewPort.js
@@ -911,6 +911,18 @@ var ViewPort = Class.create({
         return this.scroller.currentOffset();
     },
 
+    // return: (object) The current viewable range of the viewport.
+    //         first: Top-most row offset
+    //         last: Bottom-most row offset
+    currentViewableRange: function()
+    {
+        var offset = this.currentOffset();
+        return {
+            first: offset + 1,
+            last: Math.min(offset + this.getPageSize(), this.getMetaData('total_rows'))
+        };
+    },
+
     _getLineHeight: function()
     {
         var mode = this.pane_mode || 'horiz';