[Webkit-unassigned] [Bug 147553] New: Web Inspector: REGRESSION (r187708): Breakpoint dialog script action editing broken

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=147553

            Bug ID: 147553
           Summary: Web Inspector: REGRESSION (r187708): Breakpoint dialog
                    script action editing broken
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P1
         Component: Web Inspector
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mattbaker at apple.com
                CC: drousso at apple.com, graouts at webkit.org,
                    joepeck at webkit.org, jonowells at me.com,
                    mattbaker at apple.com, nvasilyev at apple.com,
                    timothy at apple.com, webkit-bug-importer at group.apple.com

Created attachment 258049
  --> https://bugs.webkit.org/attachment.cgi?id=258049&action=review
[Video] Broken dialog

* SUMMARY
Breakpoint dialog script action editing broken. It is currently impossible to create breakpoint script actions.

* STEPS TO REPRODUCE
1. Edit breakpoint
2. Add Evaluate Script action
3. Start typing
  => Dialog jumps around on screen, focus leaves CodeMirror field while typing

* NOTES
Inspector^2 console log shows:

[Error] NotFoundError: DOM Exception 8: An attempt was made to reference a Node in a context where it does not exist. replaceWithPopover.js:282
   replaceWith Popover.js:282
   _update Popover.js:282
   update Popover.js:99
   breakpointActionViewResized Breakpoint.js:522
   _codeMirrorViewportChanged BreakpointActionView.js:199
   ...

Regressed in: http://trac.webkit.org/changeset/187708

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