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[client] clipboard/wayland: implement VM-to-host image copy

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Co-authored-by: Quantum <quantum2048@gmail.com>
This commit is contained in:
Tudor Brindus 2021-01-09 01:28:56 -05:00 committed by Geoffrey McRae
parent c58f33f5ab
commit 2bfd066833
1 changed files with 64 additions and 19 deletions
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83
client/clipboards/Wayland/src/wayland.c
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@ -28,6 +28,7 @@ Place, Suite 330, Boston, MA 02111-1307 USA
struct transfer {
void * data;
size_t size;
const char ** mimetypes;
};
struct state
@ -58,8 +59,56 @@ static const char * text_mimetypes[] =
"TEXT",
"STRING",
"UTF8_STRING",
NULL,
};
static const char * png_mimetypes[] =
{
"image/png",
NULL,
};
static const char * bmp_mimetypes[] =
{
"image/bmp",
"image/x-bmp",
"image/x-MS-bmp",
"image/x-win-bitmap",
NULL,
};
static const char * tiff_mimetypes[] =
{
"image/tiff",
NULL,
};
static const char * jpeg_mimetypes[] =
{
"image/jpeg",
NULL,
};
static const char ** cb_type_to_mimetypes(enum LG_ClipboardData type)
{
switch (type)
{
case LG_CLIPBOARD_DATA_TEXT:
return text_mimetypes;
case LG_CLIPBOARD_DATA_PNG:
return png_mimetypes;
case LG_CLIPBOARD_DATA_BMP:
return bmp_mimetypes;
case LG_CLIPBOARD_DATA_TIFF:
return tiff_mimetypes;
case LG_CLIPBOARD_DATA_JPEG:
return jpeg_mimetypes;
default:
DEBUG_ERROR("invalid clipboard type");
abort();
}
}
static const char * wayland_cb_getName()
{
return "Wayland";
@ -208,19 +257,20 @@ static void wayland_cb_wmevent(SDL_SysWMmsg * msg)
{
}
static bool is_text_mimetype(const char * mime_type)
static bool is_valid_mimetype(struct transfer * transfer,
const char * needle)
{
for (int i = 0; i < sizeof(text_mimetypes)/sizeof(char *); i++)
if (!strcmp(mime_type, text_mimetypes[i]))
for (const char ** mimetype = transfer->mimetypes; *mimetype; mimetype++)
if (!strcmp(needle, *mimetype))
return true;
return false;
}
static void data_source_handle_send(void * data, struct wl_data_source * source,
const char * mime_type, int fd) {
struct transfer * transfer = (struct transfer *) data;
if (is_text_mimetype(mime_type))
const char * mimetype, int fd) {
struct transfer *transfer = (struct transfer *) data;
if (is_valid_mimetype(transfer, mimetype))
{
// Consider making this do non-blocking sends to not stall the Wayland
// event loop if it becomes a problem. This is "fine" in the sense that
@ -263,16 +313,17 @@ static void wayland_cb_reply_fn(void * opaque, LG_ClipboardData type, uint8_t *
struct transfer * transfer = malloc(sizeof(struct transfer));
void * data_copy = malloc(size);
memcpy(data_copy, data, size);
transfer->data = data_copy;
transfer->size = size;
*transfer = (struct transfer) {
.data = data_copy,
.size = size,
.mimetypes = cb_type_to_mimetypes(type),
};
struct wl_data_source *source =
struct wl_data_source * source =
wl_data_device_manager_create_data_source(this->data_device_manager);
wl_data_source_add_listener(source, &data_source_listener, transfer);
for (int i = 0; i < sizeof(text_mimetypes)/sizeof(*text_mimetypes); i++)
{
wl_data_source_offer(source, text_mimetypes[i]);
}
for (const char ** mimetype = transfer->mimetypes; *mimetype; mimetype++)
wl_data_source_offer(source, *mimetype);
wl_data_device_set_selection(this->data_device, source,
this->keyboard_enter_serial);
@ -280,12 +331,6 @@ static void wayland_cb_reply_fn(void * opaque, LG_ClipboardData type, uint8_t *
static void wayland_cb_notice(LG_ClipboardRequestFn requestFn, LG_ClipboardData type)
{
if (type != LG_CLIPBOARD_DATA_TEXT)
{
DEBUG_ERROR("Only text selection currently supported");
return;
}
this->requestFn = requestFn;
this->type = type;