Selection at the beginning of paragraphs is broken on IE9 and IE8

[j.swiderski]

I have found it when checking #9093

To reproduce:

1. Insert below code and switch to WYSIWYG

   <p>aaa</p>
   <p>bbb</p>
   <p>ccc</p>
   

2. Try to select 'bbb' but start your selection a little bit to the left of 'bbb' like shown in picture.
3. Once bbb is selected press Enter key

Result: new line is inserted above 'aaa'

Alternative step 3:

3. Once bbb is selected, press Link button and insert a link. Note that the link is inserted in the wrong place (at the end of contents).
   

The same thing happens with inline styles - they are added at the end of content. You can inspect it only with developer tools.

This issue has only been reproducible in IE8 and IE9 from CKEditor 3.6.3

[j.swiderski]

Reproducible from rev. [7374]

[garry.yao]

It's caused by the revert of one of our ​previous wysiwygarea hack, considering that [7374] cannot coexist with it, we'd rather leave this one right now, which is relatively an small case.

[satya]

adding myself to cc

[j.swiderski]

#8961 is a duplicate of this one.

[j.swiderski]

Next to #9175 this is another issue caused by this revision.

Please also note that fix presented in [7374] is not complete - please see #8919

[tmonahan]

Ticket #8964 was also closed as a duplicate of this one.

[garry.yao]

The patch unifies the behavior in all IEs, to allow selection start from all body margins.

[fredck]

With IE8 at least:

• Create 3 lines of text.

• Start dragging from the bottom-right whitespace part of the editor to make a selection up to the top-left.

It will work well for the first line only. As soon as the above lines get reached, the selection gets lost and we have a strange behaviour.

I didn't test it with other IE versions.

[garry.yao]

New patch addressed the above described issue, in IE > 8, the patch also has some indentation changes, that would be ignored when comparing a diff.

[garry.yao]

Fixed with [7600].