ScrollIntoView also expands selection to entire paragraph

[David Pidcock]

Steps to reproduce

1. With the example page, select some text (anywhere seems to work).
2. Hit the button -- which runs the following code :

      function scroll() {
         var selection = editor.getSelection();
         selection.scrollIntoView();
       } 
   

Expected result

The selection is scrolled into view, but remains the same selected text.

Actual result

The selection expands to the enclosing paragraph.

Other details (browser, OS, CKEditor version, installed plugins)

Tested on Chrome

[David Pidcock]

Minimum test example

[David Pidcock]

One extra detail : the problem doesn't appear if the very first character in the paragraph is the start of the selection.

[David Pidcock]

Preliminary investigation shows that the range is expanding to the paragraph at this line:

​https://github.com/ckeditor/ckeditor-dev/blob/master/core/dom/range.js#L2744

I can work around this bug by restoring the selection manually.

function scroll() {
      var selection = editor.getSelection();
      var ranges = selection.getRanges();
      selection.scrollIntoView();
      selection.selectRanges(ranges);
    }

[Jakub Ś]

Problem can be reproduced from CKEditor 4.0 at least in all browsers.

Your workaround is currently the only solution:

function scroll() {
   var selection = editor.getSelection();
   var ranges = selection.getRanges();
   selection.scrollIntoView();
   selection.selectRanges(ranges);
}
//or
function scroll() {
   var selection = editor.getSelection();
   var range = selection.getRanges()[0];
   selection.scrollIntoView();
   range.select();
}