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ui/gtk: vte: fix sending multiple characeters
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> Message-Id: <20210221170613.13183-2-zpmarvel@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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ui/gtk.c
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ui/gtk.c
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@ -1786,7 +1786,16 @@ static gboolean gd_vc_in(VteTerminal *terminal, gchar *text, guint size,
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}
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}
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qemu_chr_be_write(vc->vte.chr, (uint8_t *)text, (unsigned int)size);
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int remaining = size;
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uint8_t* p = (uint8_t *)text;
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while (remaining > 0) {
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int can_write = qemu_chr_be_can_write(vc->vte.chr);
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int written = MIN(remaining, can_write);
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qemu_chr_be_write(vc->vte.chr, p, written);
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remaining -= written;
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p += written;
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}
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return TRUE;
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}
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