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[ZEPPELIN-2448] Fix paragraph navigation issue #2290

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sravan-s
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What is this PR for?

  • Keyboard events are broadcasted to components in lower tree
  • Focus was getting transferred to the lower paragraphs, causing a chaining effect
  • Making emit synchronous fixes the problem

What type of PR is it?

[Bug Fix]

What is the Jira issue?

How should this be tested?

  • Open a notebook with three or more paragraphs (A, B, C, D) one below the other
  • Hide editor in B and C
  • Try to navigate A to D
  • The focus is passed through all four paragraphs

Screenshots (if appropriate)

Questions:

  • Does the licenses files need update? No
  • Is there breaking changes for older versions? No
  • Does this needs documentation? No

* Keyboard events are broadcasted to components in lower tree
* Focus was getting transffered to the lower paragraphs, cauing a chaining effect
* Making emit synchronous fixes the problem
@Leemoonsoo
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Tested and LGTM
Merge to master and branch-0.7 if no further comments

@asfgit asfgit closed this in d82f42d Apr 28, 2017
asfgit pushed a commit that referenced this pull request Apr 28, 2017
* Keyboard events are broadcasted to components in lower tree
* Focus was getting transferred to the lower paragraphs, causing a chaining effect
* Making emit synchronous fixes the problem

[Bug Fix]

* https://issues.apache.org/jira/browse/ZEPPELIN-2448

* Open a notebook with three or more paragraphs (A, B, C, D) one below the other
* Hide editor in B and C
* Try to navigate A to D
* The focus is passed through all four paragraphs

* Does the licenses files need update? No
* Is there breaking changes for older versions? No
* Does this needs documentation? No

Author: sravan <sravans2011@gmail.com>

Closes #2290 from sravan-s/ZEPPELIN-2448 and squashes the following commits:

a01ba7c [sravan] Fix paragraph navigation issue

(cherry picked from commit d82f42d)
Signed-off-by: Lee moon soo <moon@apache.org>
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