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| author | Tim Culverhouse <tim@timculverhouse.com> | 2022-10-06 11:46:40 -0500 |
|---|---|---|
| committer | Robin Jarry <robin@jarry.cc> | 2022-10-07 10:51:53 +0200 |
| commit | d847073bdf67a2fd8c8695dbacbe010bcbfd27c8 (patch) | |
| tree | c36a26a3abc4810a3cd7ba9b56bb0d8f01af7f69 | |
| parent | c6561d32a8430f99bb84224ba8fde3ddcd44257e (diff) | |
| download | aerc-d847073bdf67a2fd8c8695dbacbe010bcbfd27c8.tar.gz aerc-d847073bdf67a2fd8c8695dbacbe010bcbfd27c8.zip | |
events: introduce AercMsg and QueueRedraw
Add AercMsg as a main interface for internal communication in aerc in
preparation for a main event loop. Add a QueueRedraw function to to
trigger a redraw. This will be needed for widgets which should be drawn
after some delay (completions, terminal, for example)
Signed-off-by: Tim Culverhouse <tim@timculverhouse.com>
Acked-by: Robin Jarry <robin@jarry.cc>
| -rw-r--r-- | lib/ui/interfaces.go | 3 | ||||
| -rw-r--r-- | lib/ui/ui.go | 8 |
2 files changed, 11 insertions, 0 deletions
diff --git a/lib/ui/interfaces.go b/lib/ui/interfaces.go index 7e117256..8a62ecf0 100644 --- a/lib/ui/interfaces.go +++ b/lib/ui/interfaces.go @@ -4,6 +4,9 @@ import ( "github.com/gdamore/tcell/v2" ) +// AercMsg is used to communicate within aerc +type AercMsg interface{} + // Drawable is a UI component that can draw. Unless specified, all methods must // only be called from a single goroutine, the UI goroutine. type Drawable interface { diff --git a/lib/ui/ui.go b/lib/ui/ui.go index 632d5f1d..d477242e 100644 --- a/lib/ui/ui.go +++ b/lib/ui/ui.go @@ -7,6 +7,14 @@ import ( "github.com/gdamore/tcell/v2" ) +var MsgChannel = make(chan AercMsg, 50) + +// QueueRedraw sends a nil message into the MsgChannel. Nothing will handle this +// message, but a redraw will occur if the UI is marked as invalid +func QueueRedraw() { + MsgChannel <- nil +} + type UI struct { Content DrawableInteractive exit atomic.Value // bool |