Ticket #1484736: rcube_caret_position.patch

program/js/app.js

@@ -1833 +1833 @@
       input_message.value = message;
 
     this.env.identity = id;
+
+    // Setting caret to start of message box, after writing signatures
+    this.set_caret2pos(input_message);
+
     return true;
     };
 
@@ -3547 +3551 @@
     obj.focus();
     };
 
+  this.set_caret2pos = function(obj)
+    {
+    if (!obj.caretPos)
+        obj.caretPos = 0;
+    if (obj.createTextRange)
+      {
+      this.set_caret2start(obj);
+      }
+    else if (obj.setSelectionRange)
+      obj.setSelectionRange(obj.caretPos,obj.caretPos);
+    };
+
+  this.save_caret_pos = function(obj)
+    {
+    if (obj.createTextRange)
+      {
+      var range = document.selection.createRange();
+      var isCollapsed = range.compareEndPoints("StartToEnd", range) == 0;
+      if (!isCollapsed)
+        range.collapse(true);
+      var b = range.getBookmark()
+      obj.caretPos = b.charCodeAt(2) - 481;
+      }
+    else if (obj.selectionStart)
+      obj.caretPos = obj.selectionStart;
+    };
 
   // set all fields of a form disabled
   this.lock_form = function(form, lock)

program/steps/mail/compose.inc

@@ -431 +431 @@
   // If desired, set this text area to be editable by TinyMCE
   if ($isHtml)
     $attrib['mce_editable'] = "true";
+  $attrib['onmouseup'] = "rcmail.save_caret_pos(this);";
+  $attrib['onkeyup'] = "rcmail.save_caret_pos(this);";
+  $attrib['onfocus'] = "rcmail.set_caret2pos(this);";
   $textarea = new textarea($attrib);
   $out .= $textarea->show($body);
   $out .= $form_end ? "\n$form_end" : '';