[Libreoffice-bugs] [Bug 131280] New: Android Viewer chokes on document containing form controls

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=131280

            Bug ID: 131280
           Summary: Android Viewer chokes on document containing form
                    controls
           Product: LibreOffice
           Version: 7.0.0.0.alpha0+ Master
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Android Viewer
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: m.weghorn at posteo.de

Created attachment 158602
  --> https://bugs.documentfoundation.org/attachment.cgi?id=158602&action=edit
sample document to reproduce the issue

LibreOffice Android Viewer has issues with files containing form controls, like
checkboxes and radiobuttons.

Steps to reproduce:

1) open the attached sample document "form_elements.odt" (which is based on the
attachment to tdf#128308).
2) scroll down a bit (and maybe a bit more up and down)

Observed behaviour

At some point, the rendering no longer works properly, view remains "blurry"


A quick first analysis of issue B suggested that the radiobuttons were
triggering invalidation requests "without end", even if not interacting with
the document, with the app being unable to handle those properly. Sometimes,
rendering continued after waiting a few minutes...



Reproducible with current daily build,
master~2020-03-10_23.37.28_LibreOfficeViewer-strippedUIEditing-debug.apk:

Version: 7.0.0.alpha0+
Build ID: 036da95dc5d0

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