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[PATCH] ui/gtk: vte: fix sending multiple characeters
From: |
Zack Marvel |
Subject: |
[PATCH] ui/gtk: vte: fix sending multiple characeters |
Date: |
Sun, 21 Feb 2021 10:06:13 -0700 |
When using the GTK UI with libvte, multicharacter keystrokes are not
sent correctly (such as arrow keys). gd_vc_in should check the
CharBackend's can_receive instead of assuming multiple characters can be
received. This is not an issue for e.g. the SDL UI because
qemu_chr_be_write is called with len=1 for each character (SDL sends
more than once keystroke).
Modify gd_vc_in to call qemu_chr_be_write multiple times if necessary.
Buglink: https://bugs.launchpad.net/qemu/+bug/1407808
Signed-off-by: Zack Marvel <zpmarvel@gmail.com>
---
ui/gtk.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/ui/gtk.c b/ui/gtk.c
index 79dc240120..bad716f136 100644
--- a/ui/gtk.c
+++ b/ui/gtk.c
@@ -1786,7 +1786,16 @@ static gboolean gd_vc_in(VteTerminal *terminal, gchar
*text, guint size,
}
}
- qemu_chr_be_write(vc->vte.chr, (uint8_t *)text, (unsigned int)size);
+ int remaining = size;
+ uint8_t* p = (uint8_t *)text;
+ while (remaining > 0) {
+ int can_write = qemu_chr_be_can_write(vc->vte.chr);
+ int written = MIN(remaining, can_write);
+ qemu_chr_be_write(vc->vte.chr, p, written);
+
+ remaining -= written;
+ p += written;
+ }
return TRUE;
}
--
2.20.1