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x11: Translate well known selection atoms to mimetypes

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Some antediluvian x11 clients only bother to set atoms like
UTF8_STRING/STRING/TEXT/... and no matching mimetypes. Cover for them
and add the well known mimetypes if they are missing.

Reported at https://bugzilla.redhat.com/show_bug.cgi?id=1758873

https://gitlab.gnome.org/GNOME/mutter/merge_requests/842
This commit is contained in:
Carlos Garnacho 2019-10-10 12:16:58 +02:00 committed by Carlos Garnacho
parent d49d10b14f
commit 59a697f773
1 changed files with 13 additions and 0 deletions
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13
src/x11/meta-selection-source-x11.c
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@ -139,6 +139,8 @@ atoms_to_mimetypes (MetaX11Display *display,
const Atom *atoms;
gsize size;
guint i, n_atoms;
gboolean utf8_string_found = FALSE, utf8_text_plain_found = FALSE;
gboolean string_found = FALSE, text_plain_found = FALSE;
atoms = g_bytes_get_data (bytes, &size);
n_atoms = size / sizeof (Atom);
@ -149,8 +151,19 @@ atoms_to_mimetypes (MetaX11Display *display,
mimetype = gdk_x11_get_xatom_name (atoms[i]);
mimetypes = g_list_prepend (mimetypes, g_strdup (mimetype));
utf8_text_plain_found |= strcmp (mimetype, "text/plain;charset=utf-8") == 0;
text_plain_found |= strcmp (mimetype, "text/plain") == 0;
utf8_string_found |= strcmp (mimetype, "UTF8_STRING") == 0;
string_found |= strcmp (mimetype, "STRING") == 0;
}
/* Ensure non-x11 clients get well-known mimetypes */
if (string_found && !text_plain_found)
mimetypes = g_list_prepend (mimetypes, g_strdup ("text/plain"));
if (utf8_string_found && !utf8_text_plain_found)
mimetypes = g_list_prepend (mimetypes, g_strdup ("text/plain;charset=utf-8"));
return mimetypes;
}