[wp-trac] [WordPress Trac] #27416: Tinymce wpviews cause a undo loop of sorts that inhibits the user from undoing changes

[WordPress Trac]

#27416: Tinymce wpviews cause a undo loop of sorts that inhibits the user from
undoing changes
--------------------------+-------------------------
 Reporter:  gcorne        |       Owner:
     Type:  defect (bug)  |      Status:  new
 Priority:  high          |   Milestone:  3.9
Component:  Editor        |     Version:  trunk
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:  javascript
--------------------------+-------------------------
Description changed by gcorne:

Old description:

> When a post has one or more wpviews, it is possible to get the editor in
> a state where previous changes cannot be undone via ctrl+z / command+z.
>
> To reproduce,
>
> 1, Create and save a post with at least one gallery and a block of text
> before and after.
> 2. Cut some of the text and paste it somewhere.
> 3. Try to undo twice.
>
> Expected:
> The pasted text to be removed and the cut text to be restored.
>
> Actual:
> The pasted text is removed, but the cut text is not restored.
>
> This occurs when wp.mce.views.render() is called and updates the DOM.
>
> See [https://core.trac.wordpress.org/browser/trunk/src/wp-
> includes/js/tinymce/plugins/wpview/plugin.js?rev=27408#L143 line 143] in
> the wpview plugin.
>
> The first undo correctly removes the pasted text

New description:

 When a post has one or more wpviews, it is possible to get the editor in a
 state where previous changes cannot be undone via ctrl+z / command+z.

 To reproduce,

 1. Create and save a post with at least one gallery and a block of text
 before and after.
 2. Cut some of the text and paste it somewhere.
 3. Try to undo twice.

 Expected:
 The pasted text to be removed and the cut text to be restored.

 Actual:
 The pasted text is removed, but the cut text is not restored.

 This occurs when wp.mce.views.render() is called and updates the DOM.  See
 [https://core.trac.wordpress.org/browser/trunk/src/wp-
 includes/js/tinymce/plugins/wpview/plugin.js?rev=27408#L143 line 143] in
 the wpview plugin.

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Ticket URL: <https://core.trac.wordpress.org/ticket/27416#comment:1>
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