Marshall Schor created UIMA-3936:
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Summary: HTML Cas Viewer floods the history list unnecessarily
Key: UIMA-3936
URL: https://issues.apache.org/jira/browse/UIMA-3936
Project: UIMA
Issue Type: Improvement
Components: Core Java Framework
Affects Versions: 2.6.0SDK
Reporter: Marshall Schor
Priority: Minor
The html version of the CAS Viewer (as used by the Document Analyzer, if you
select html as the format) uses Javascript to display annotations in the
right-side pane on mouse-over, and resets this when the mouse moves out of the
item on the main pane.
The reset is done using the frame's document, via doc.close() and doc.open().
This clears the annotation pane OK, but the open() causes a History record to
be created.
This is compounded by the fact that a word may be covered by many annotations,
and there's one of these clear actions for each covered annotation. So if you
have 6, moving out causes 6 resets, and 6 additions to the History. This
rapidly make it appear that the "back" button is broken...
Use a different reset method to avoid overloading the history list.
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