[Users] [Bug 4247] New: Keyboard navigation doesn't work when viewing HTML part

[noreply at thewildbeast.co.uk]

https://www.thewildbeast.co.uk/claws-mail/bugzilla/show_bug.cgi?id=4247

            Bug ID: 4247
           Summary: Keyboard navigation doesn't work when viewing HTML
                    part
           Product: Claws Mail
           Version: 3.17.4
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: minor
          Priority: P3
         Component: Plugins/LiteHTML Viewer
          Assignee: users at lists.claws-mail.org
          Reporter: dustbiz at gmail.com

When using the LiteHTML Viewer plugin to view an email's HTML part (either in
message view or by opening it in a new window), keyboard navigation (space bar,
Enter, PgUp, PgDn, up/down arrows) doesn't work, whereas it does when viewing
other part types.

Steps to Reproduce:

1) Install Claws Mail 3.17.4 from source after using package manager to install
'libetpan' and 'libgumbo' libraries from Ubuntu 18.04 repos. (Basic ./configure
command, other than using an alternative directory for the config.)

2) View the HTML part of an email that has one, either in message view or by
opening in a new window.

3) Try to use the keyboard to scroll up and down in the email as you would when
viewing a different email part (i.e. space bar, Enter, etc.).

Actual Results: No response to keyboard inputs. (But mouse can be used with the
scroll bar as a workaround.)

Expected Results: The message should move up and down according to keyboard
inputs, consistent with how it does when viewing other parts.

I know that this plugin has some issues that are related to the limitations of
'litehtml' itself, but this seems like it might be something that could be
fixed in the plugin code itself.

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