PurpleWhiteboard *silcpurple_wb_init_ch(SilcPurple sg, SilcChannelEntry channel)
{
PurpleWhiteboard *wb;
SilcPurpleWb wbs;
wb = purple_whiteboard_get_session(sg->account, channel->channel_name);
if (!wb)
wb = purple_whiteboard_create(sg->account, channel->channel_name, 0);
if (!wb)
return NULL;
if (!wb->proto_data) {
wbs = silc_calloc(1, sizeof(*wbs));
if (!wbs)
return NULL;
wbs->type = 1;
wbs->u.channel = channel;
wbs->width = SILCPURPLE_WB_WIDTH;
wbs->height = SILCPURPLE_WB_HEIGHT;
wbs->brush_size = SILCPURPLE_WB_BRUSH_SMALL;
wbs->brush_color = SILCPURPLE_WB_COLOR_BLACK;
wb->proto_data = wbs;
/* Start the whiteboard */
purple_whiteboard_start(wb);
purple_whiteboard_clear(wb);
}
return wb;
}
PurpleWhiteboard *silcpurple_wb_init(SilcPurple sg, SilcClientEntry client_entry)
{
SilcClientConnection conn;
PurpleWhiteboard *wb;
SilcPurpleWb wbs;
conn = sg->conn;
wb = purple_whiteboard_get_session(sg->account, client_entry->nickname);
if (!wb)
wb = purple_whiteboard_create(sg->account, client_entry->nickname, 0);
if (!wb)
return NULL;
if (!wb->proto_data) {
wbs = silc_calloc(1, sizeof(*wbs));
if (!wbs)
return NULL;
wbs->type = 0;
wbs->u.client = client_entry;
wbs->width = SILCPURPLE_WB_WIDTH;
wbs->height = SILCPURPLE_WB_HEIGHT;
wbs->brush_size = SILCPURPLE_WB_BRUSH_SMALL;
wbs->brush_color = SILCPURPLE_WB_COLOR_BLACK;
wb->proto_data = wbs;
/* Start the whiteboard */
purple_whiteboard_start(wb);
purple_whiteboard_clear(wb);
}
return wb;
}
static void
silcpurple_wb_parse(SilcPurpleWb wbs, PurpleWhiteboard *wb,
unsigned char *message, SilcUInt32 message_len)
{
SilcUInt8 command;
SilcUInt16 width, height, brush_size;
SilcUInt32 brush_color, x, y, dx, dy;
SilcBufferStruct buf;
int ret;
/* Parse the packet */
silc_buffer_set(&buf, message, message_len);
ret = silc_buffer_unformat(&buf,
SILC_STR_UI_CHAR(&command),
SILC_STR_UI_SHORT(&width),
SILC_STR_UI_SHORT(&height),
SILC_STR_UI_INT(&brush_color),
SILC_STR_UI_SHORT(&brush_size),
SILC_STR_END);
if (ret < 0)
return;
silc_buffer_pull(&buf, ret);
/* Update whiteboard if its dimensions changed */
if (width != wbs->width || height != wbs->height)
silcpurple_wb_set_dimensions(wb, height, width);
if (command == SILCPURPLE_WB_DRAW) {
/* Parse data and draw it */
ret = silc_buffer_unformat(&buf,
SILC_STR_UI_INT(&dx),
SILC_STR_UI_INT(&dy),
SILC_STR_END);
if (ret < 0)
return;
silc_buffer_pull(&buf, 8);
x = dx;
y = dy;
while (silc_buffer_len(&buf) > 0) {
ret = silc_buffer_unformat(&buf,
SILC_STR_UI_INT(&dx),
SILC_STR_UI_INT(&dy),
SILC_STR_END);
if (ret < 0)
return;
silc_buffer_pull(&buf, 8);
purple_whiteboard_draw_line(wb, x, y, x + dx, y + dy,
brush_color, brush_size);
x += dx;
y += dy;
}
}
if (command == SILCPURPLE_WB_CLEAR)
purple_whiteboard_clear(wb);
}
static void yahoo_doodle_command_got_ready(PurpleConnection *gc, const char *from, const char *imv_key)
{
PurpleAccount *account;
PurpleWhiteboard *wb;
purple_debug_info("yahoo", "doodle: Got Ready(%s)\n", from);
account = purple_connection_get_account(gc);
/* Only handle this if local client requested Doodle session (else local
* client would have sent one)
*/
wb = purple_whiteboard_get_session(account, from);
if(wb == NULL)
return;
if(wb->state == DOODLE_STATE_REQUESTING)
{
doodle_session *ds = wb->proto_data;
purple_whiteboard_start(wb);
wb->state = DOODLE_STATE_ESTABLISHED;
yahoo_doodle_command_send_confirm(gc, from, imv_key);
/* Let's steal the imv_key and reuse it */
g_free(ds->imv_key);
ds->imv_key = g_strdup(imv_key);
}
else if(wb->state == DOODLE_STATE_ESTABLISHED)
{
/* TODO Ask whether to save picture too */
purple_whiteboard_clear(wb);
}
/* NOTE Not sure about this... I am trying to handle if the remote user
* already thinks we're in a session with them (when their chat message
* contains the doodle imv key)
*/
else if(wb->state == DOODLE_STATE_REQUESTED)
{
/* purple_whiteboard_start(wb); */
yahoo_doodle_command_send_ready(gc, from, imv_key);
}
}
static void yahoo_doodle_command_got_clear(PurpleConnection *gc, const char *from)
{
PurpleAccount *account;
PurpleWhiteboard *wb;
purple_debug_info("yahoo", "doodle: Got Clear (%s)\n", from);
account = purple_connection_get_account(gc);
/* Only handle this if local client requested Doodle session (else local
* client would have sent one)
*/
wb = purple_whiteboard_get_session(account, from);
if(wb == NULL)
return;
if(wb->state == DOODLE_STATE_ESTABLISHED)
{
/* TODO Ask user whether to save the image before clearing it */
purple_whiteboard_clear(wb);
}
}
