From aa9ce640c9bf454e58d5b4a7c723c95c96c083d3 Mon Sep 17 00:00:00 2001
From: Nikolaj Olsson <nikse.dk@gmail.com>
Date: Sun, 22 Nov 2020 16:19:55 +0100
Subject: [PATCH] First mildly working WebTextBox... no syntax coloring yet

---
 .../Controls/WebBrowser/WebBrowserEditBox.cs  | 26 +++++++++++++++----
 .../WebBrowser/WebBrowserEditBox.html         |  3 ++-
 2 files changed, 23 insertions(+), 6 deletions(-)

diff --git a/src/ui/Controls/WebBrowser/WebBrowserEditBox.cs b/src/ui/Controls/WebBrowser/WebBrowserEditBox.cs
index 407b05018..d0bb11a47 100644
--- a/src/ui/Controls/WebBrowser/WebBrowserEditBox.cs
+++ b/src/ui/Controls/WebBrowser/WebBrowserEditBox.cs
@@ -81,11 +81,10 @@ namespace Nikse.SubtitleEdit.Controls.WebBrowser
                     var ch = text[i];
                     if (ch == '\r')
                     {
-                       //continue
+                        //continue
                     }
                     else if (ch == '\n')
                     {
-                        i++;
                         if (!isNewLine)
                         {
                             sb.Append(Environment.NewLine);
@@ -205,7 +204,15 @@ namespace Nikse.SubtitleEdit.Controls.WebBrowser
             }
         }
 
-        public int SelectionLength { get; set; }
+        public int SelectionLength
+        {
+            get => SelectedText.Length;
+            set
+            {
+                //TODO: fix
+            }
+        }
+
         public bool HideSelection { get; set; }
 
         public void SelectAll()
@@ -299,13 +306,15 @@ namespace Nikse.SubtitleEdit.Controls.WebBrowser
 
         public void ClientClick()
         {
-            MouseClick?.Invoke(this, new MouseEventArgs(MouseButtons.Left, 1, 1, 1, 1));
+            var mp = PointToClient(MousePosition);
+            MouseClick?.Invoke(this, new MouseEventArgs(MouseButtons.Left, 1, mp.X, mp.Y, 1));
             TextChanged?.Invoke(this, new KeyEventArgs(0));
         }
 
         public void ClientMouseMove()
         {
-            MouseMove?.Invoke(this, new MouseEventArgs(MouseButtons.Left, 1, 1, 1, 1));
+            var mp = PointToClient(MousePosition);
+            MouseMove?.Invoke(this, new MouseEventArgs(MouseButtons.None, 0, mp.X, mp.Y, 0));
         }
 
         internal int GetCharIndexFromPosition(Point pt)
@@ -315,10 +324,17 @@ namespace Nikse.SubtitleEdit.Controls.WebBrowser
 
         public void Clear()
         {
+            Text = string.Empty;
         }
 
         public void Undo()
         {
+            if (Document == null)
+            {
+                return;
+            }
+
+            Document.ExecCommand("undo", false, null);
         }
 
         public void ClearUndo()
diff --git a/src/ui/Controls/WebBrowser/WebBrowserEditBox.html b/src/ui/Controls/WebBrowser/WebBrowserEditBox.html
index a68e72771..9fb205cb6 100644
--- a/src/ui/Controls/WebBrowser/WebBrowserEditBox.html
+++ b/src/ui/Controls/WebBrowser/WebBrowserEditBox.html
@@ -109,7 +109,7 @@
                         if (node.parentNode.parentNode.id === "myContent" && !node.parentNode.previousSibling) {
                             // skip first P
                         } else {
-                            extraChar = 1;
+                            extraChar = 2;
                         }
                     }
 
@@ -130,6 +130,7 @@
 
             if (node.nodeName === "P" && node.previousSibling) {
                 idx++;
+                idx++;
             }
 
             var res = getPreviousOrParentLastChild(node);