From 4a173e30dcfef3bd393946f7a64e3c8b262658b0 Mon Sep 17 00:00:00 2001
From: ansuz <ansuz@transitiontech.ca>
Date: Mon, 20 Mar 2017 17:51:56 +0100
Subject: [PATCH] set user's cursor to either the beginning or end of the
 document

---
 www/common/cursor.js | 54 +++++++++++++++++++++++++++++++++++++++++++-
 www/pad/main.js      | 10 +++++++-
 2 files changed, 62 insertions(+), 2 deletions(-)

diff --git a/www/common/cursor.js b/www/common/cursor.js
index 7614e44c4..07e705244 100644
--- a/www/common/cursor.js
+++ b/www/common/cursor.js
@@ -11,7 +11,7 @@ define([
     var verbose = function (x) { if (window.verboseMode) { console.log(x); } };
 
     /* accepts the document used by the editor */
-    return function (inner) {
+    var Cursor = function (inner) {
         var cursor = {};
 
         // there ought to only be one cursor at a time, so let's just
@@ -387,6 +387,58 @@ define([
             }
         };
 
+        cursor.lastTextNode = function () {
+            var lastEl = Tree.rightmostNode(inner);
+            if (lastEl && lastEl.nodeType === 3) { return lastEl; }
+
+            var firstEl = Tree.leftmostNode(inner);
+
+            while (lastEl !== firstEl) {
+                lastEl = Tree.previousNode(lastEl, inner);
+                if (lastEl && lastEl.nodeType === 3) { return lastEl; }
+            }
+
+            return lastEl;
+        };
+
+        cursor.firstTextNode = function () {
+            var firstEl = Tree.leftmostNode(inner);
+            if (firstEl && firstEl.nodeType === 3) { return firstEl; }
+
+            var lastEl = Tree.rightmostNode(inner);
+
+            while (firstEl !== lastEl) {
+                firstEl = Tree.nextNode(firstEl, inner);
+                if (firstEl && firstEl.nodeType === 3) { return firstEl; }
+            }
+            return firstEl;
+        };
+
+        cursor.setToStart = function () {
+            var el = cursor.firstTextNode();
+            if (!el) { return; }
+            fixStart(el, 0);
+            fixEnd(el, 0);
+            fixSelection(makeSelection(), makeRange());
+            return el;
+        };
+
+        cursor.setToEnd = function () {
+            var el = cursor.lastTextNode();
+            if (!el) { return; }
+
+            var offset = el.textContent.length;
+
+            fixStart(el, offset);
+            fixEnd(el, offset);
+            fixSelection(makeSelection(), makeRange());
+            return el;
+        };
+
         return cursor;
     };
+
+    Cursor.Tree = Tree;
+
+    return Cursor;
 });
diff --git a/www/pad/main.js b/www/pad/main.js
index df854fd04..9d997aa7d 100644
--- a/www/pad/main.js
+++ b/www/pad/main.js
@@ -64,6 +64,7 @@ define([
         logFights: true,
         fights: [],
         Cryptpad: Cryptpad,
+        Cursor: Cursor,
     };
 
     var emitResize = module.emitResize = function () {
@@ -131,7 +132,7 @@ define([
                 color: '#fff',
             });
 
-            var cursor = window.cursor = Cursor(inner);
+            var cursor = module.cursor = Cursor(inner);
 
             var setEditable = module.setEditable = function (bool) {
                 if (bool) {
@@ -718,6 +719,13 @@ define([
                         realtimeOptions.onLocal();
                         module.$userNameButton.click();
                     }
+
+                    editor.focus();
+                    if (newPad) {
+                        cursor.setToEnd();
+                    } else {
+                        cursor.setToFix();
+                    }
                 });
             };