# HG changeset patch
# User Atul Varma <varmaa@toolness.com>
# Date 1233534822 28800
# Node ID c0edd32443a79eb9a1f4518e49d7a6c8731d44f6
# Parent  0158bed7e0c6330b05aca761d7932e46f962d012
Cursor position is now preserved when moving from editing a part to editing the whole document.

diff -r 0158bed7e0c6 -r c0edd32443a7 wiki.js
--- a/wiki.js	Sun Feb 01 16:24:38 2009 -0800
+++ b/wiki.js	Sun Feb 01 16:33:42 2009 -0800
@@ -1,4 +1,5 @@
 var App = {
+  PART_SEPARATOR: "\n\n",
   eventHandlers: {}
 };
 
@@ -17,10 +18,10 @@
     function(i) { partsMarkup.push($(this).text()); }
   );
 
-  return partsMarkup.join("\n\n");
+  return partsMarkup.join(App.PART_SEPARATOR);
 };
 
-App.enterEditMode = function enterEditMode(parts, level) {
+App.enterEditMode = function enterEditMode(parts, level, cursorPos) {
   var editablePart = $('<textarea class="wiki-edit"></textarea>').get(0);
   $(editablePart).attr("value", App.getMarkup(parts));
 
@@ -39,10 +40,14 @@
 
     aEvt.preventDefault();
 
+    var prevMarkup = App.getMarkup($(this).prevAll());
+    var cursorPos = (prevMarkup.length + App.PART_SEPARATOR.length +
+                     this.selectionStart);
+
     var allSiblings = this.parentNode.childNodes;
     exitEditMode.apply(this);
 
-    App.enterEditMode(allSiblings, level-1);
+    App.enterEditMode(allSiblings, level-1, cursorPos);
   }
 
   $(editablePart).blur(exitEditMode);
@@ -52,6 +57,10 @@
   $(parts).replaceWith(editablePart);
   setScrollHeight.apply(editablePart);
 
+  if (typeof(cursorPos) != "undefined") {
+    editablePart.selectionStart = cursorPos;
+    editablePart.selectionEnd = cursorPos;
+  }
   $(editablePart).focus();
 };
 
@@ -68,7 +77,7 @@
 App.createParts = function createParts(text) {
   var parts = [];
 
-  var partsMarkup = text.split("\n\n");
+  var partsMarkup = text.split(App.PART_SEPARATOR);
   jQuery.each(
     partsMarkup,
     function(i) {