In many GNU/Linux setups, drawing attention when a notification arrives
causes the Signal window to steal focus immediately and interrupt the
user from what they were doing before the notification arrived. GNOME
Shell is the most prominent example of this behavior, but there are
likely other cases as well. Suddenly stealing focus on external events
like this can even pose a security problem in some cases, e.g. if the
user is in the middle of a typing a sudo password on one monitor while a
notification arrives and focuses Signal on another monitor. See #4452
for more information.
Disabling attention drawing entirely for Linux is also problematic
because some users rely on it as the sole indication of a new message,
as seen in #3582 and #3611.
Commit f790694559 improved the situation
by adding a hidden "--disable-flash-frame" command-line argument, but
this argument is undocumented and manually adding command-line arguments
to the application's .desktop file is not user-friendly.
This commit adds a settings option for whether to draw attention when a
new notification arrives to make it easy for all Linux users to obtain
the appropriate behavior without relying on an undocumented
command-line argument.
Fixes#4452.
* Starting to work through lint errors
* libsignal-protocol: Update changes for primary repo compatibility
* Step 1: task_with_timeout rename
* Step 2: Apply the changes to TaskWithTimeout.ts
* Step 1: All to-be-converted libtextsecure/*.js files moved
* Step 2: No Typescript errors!
* Get libtextsecure tests passing again
* TSLint errors down to 1
* Compilation succeeds, no lint errors or test failures
* WebSocketResources - update import for case-sensitive filesystems
* Fixes for lint-deps
* Remove unnecessary @ts-ignore
* Fix inability to message your own contact after link
* Add log message for the end of migration 20
* lint fix
* Retry websocket connect if error returned is 502
* Introduce connect button on 'Disconnected' left-pane dialog
* NetworkStatus: If user clicks connect, show connecting for 5s
* If focus was set to document.body during archive, focus left pane
* Shortcut Guide: Add space between text and shortcut highlight
* Ensure that draft attachment can be closed with click on X button
* Move to keyDown event for user idle checking
* Additional resiliency around avatars; check for them on on-disk
* Increase timeouts to preserve websocket connection
* On startup, be resilient to malformed JSON in log files
* Don't crash if shell.openExternal returns an error
* Whenever we request a contact/group sync, also request block list
* Avatar popup: Ensure styling is mouse- and keyboard-appropriate
* MainHeader: Create popperRoot on demand, not on mount
* CompositionInput: Disable default Ctrl-/ shortcut
* Update libphonenumber
