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Filter out duplicate ClientFormatList announcements

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This commit is contained in:
akallabeth
2020-11-26 17:38:04 +01:00
parent 2efb7d9274
commit a51f4ccaaa
1 changed files with 82 additions and 9 deletions
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91
client/X11/xf_cliprdr.c
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@@ -172,6 +172,9 @@ struct xf_clipboard
BOOL streams_supported;
BOOL file_formats_registered;
UINT32 file_capability_flags;
/* last sent data */
CLIPRDR_FORMAT* lastSentFormats;
UINT32 lastSentNumFormats;
#ifdef WITH_FUSE
/* FUSE related**/
HANDLE fuse_thread;
@@ -607,15 +610,81 @@ static void xf_cliprdr_provide_server_format_list(xfClipboard* clipboard)
Stream_Free(formats, TRUE);
}
static BOOL xf_clipboard_format_equal(const CLIPRDR_FORMAT* a, const CLIPRDR_FORMAT* b)
{
if (a->formatId != b->formatId)
return FALSE;
if (!a->formatName && !b->formatName)
return TRUE;
return strcmp(a->formatName, b->formatName) == 0;
}
static BOOL xf_clipboard_changed(xfClipboard* clipboard, const CLIPRDR_FORMAT* formats,
UINT32 numFormats)
{
UINT32 x, y;
if (clipboard->lastSentNumFormats != numFormats)
return TRUE;
for (x = 0; x < numFormats; x++)
{
const CLIPRDR_FORMAT* cur = &clipboard->lastSentFormats[x];
BOOL contained = FALSE;
for (y = 0; y < numFormats; y++)
{
if (xf_clipboard_format_equal(cur, &formats[y]))
{
contained = TRUE;
break;
}
}
if (!contained)
return TRUE;
}
return FALSE;
}
static void xf_clipboard_formats_free(xfClipboard* clipboard)
{
xf_cliprdr_free_formats(clipboard->lastSentFormats, clipboard->lastSentNumFormats);
clipboard->lastSentFormats = NULL;
clipboard->lastSentNumFormats = 0;
}
static BOOL xf_clipboard_copy_formats(xfClipboard* clipboard, const CLIPRDR_FORMAT* formats,
UINT32 numFormats)
{
UINT32 x;
xf_clipboard_formats_free(clipboard);
clipboard->lastSentFormats = calloc(numFormats, sizeof(CLIPRDR_FORMAT));
if (!clipboard->lastSentFormats)
return FALSE;
clipboard->lastSentNumFormats = numFormats;
for (x = 0; x < numFormats; x++)
{
CLIPRDR_FORMAT* lcur = &clipboard->lastSentFormats[x];
const CLIPRDR_FORMAT* cur = &formats[x];
*lcur = *cur;
if (cur->formatName)
lcur->formatName = _strdup(cur->formatName);
}
return FALSE;
}
static UINT xf_cliprdr_send_format_list(xfClipboard* clipboard, const CLIPRDR_FORMAT* formats,
UINT32 numFormats)
{
CLIPRDR_FORMAT_LIST formatList = { 0 };
formatList.msgFlags = CB_RESPONSE_OK;
formatList.numFormats = numFormats;
formatList.formats = formats;
formatList.formats = (CLIPRDR_FORMAT*)formats;
formatList.msgType = CB_FORMAT_LIST;
if (!xf_clipboard_changed(clipboard, formats, numFormats))
return CHANNEL_RC_OK;
xf_clipboard_copy_formats(clipboard, formats, numFormats);
/* Ensure all pending requests are answered. */
xf_cliprdr_send_data_response(clipboard, NULL, 0);
return clipboard->context->ClientFormatList(clipboard->context, &formatList);
@@ -796,14 +865,16 @@ static BOOL xf_cliprdr_get_requested_data(xfClipboard* clipboard, Atom target)
new_data =
(BYTE*)realloc(clipboard->incr_data, clipboard->incr_data_length + bytes_left);
if (!new_data)
return FALSE;
if (new_data)
{
clipboard->incr_data = new_data;
CopyMemory(clipboard->incr_data + clipboard->incr_data_length, data, bytes_left);
clipboard->incr_data_length += bytes_left;
XFree(data);
data = NULL;
clipboard->incr_data = new_data;
CopyMemory(clipboard->incr_data + clipboard->incr_data_length, data,
bytes_left);
clipboard->incr_data_length += bytes_left;
XFree(data);
data = NULL;
}
}
has_data = TRUE;
@@ -814,7 +885,7 @@ static BOOL xf_cliprdr_get_requested_data(xfClipboard* clipboard, Atom target)
}
XDeleteProperty(xfc->display, xfc->drawable, clipboard->property_atom);
xf_cliprdr_process_requested_data(clipboard, has_data, data, (int)bytes_left);
xf_cliprdr_process_requested_data(clipboard, has_data, data, bytes_left);
if (data)
XFree(data);
@@ -1514,6 +1585,7 @@ static UINT xf_cliprdr_server_format_list(CliprdrClientContext* context,
xfClipboard* clipboard = (xfClipboard*)context->custom;
xfContext* xfc = clipboard->xfc;
UINT ret;
xf_clipboard_formats_free(clipboard);
xf_cliprdr_clear_cached_data(clipboard);
clipboard->data_format_id = -1;
clipboard->data_format_name = NULL;
@@ -2927,6 +2999,7 @@ void xf_clipboard_free(xfClipboard* clipboard)
#endif
ClipboardDestroy(clipboard->system);
xf_clipboard_formats_free(clipboard);
free(clipboard->data);
free(clipboard->data_raw);
free(clipboard->respond);