libpurple/whiteboard.c

   1 /*
   2  * purple
   3  *
   4  * Purple is the legal property of its developers, whose names are too numerous
   5  * to list here.  Please refer to the COPYRIGHT file distributed with this
   6  * source distribution.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
  21  *
  22  */
  23
  24 #include <string.h>
  25
  26 #include "internal.h"
  27 #include "whiteboard.h"
  28 #include "prpl.h"
  29
  30 /******************************************************************************
  31  * Globals
  32  *****************************************************************************/
  33 static PurpleWhiteboardUiOps *whiteboard_ui_ops = NULL;
  34 /* static PurpleWhiteboardPrplOps *whiteboard_prpl_ops = NULL; */
  35
  36 static GList *wbList = NULL;
  37
  38 /*static gboolean auto_accept = TRUE; */
  39
  40 /******************************************************************************
  41  * API
  42  *****************************************************************************/
  43 void purple_whiteboard_set_ui_ops(PurpleWhiteboardUiOps *ops)
  44 {
  45         whiteboard_ui_ops = ops;
  46 }
  47
  48 void purple_whiteboard_set_prpl_ops(PurpleWhiteboard *wb, PurpleWhiteboardPrplOps *ops)
  49 {
  50         wb->prpl_ops = ops;
  51 }
  52
  53 PurpleWhiteboard *purple_whiteboard_create(PurpleAccount *account, const char *who, int state)
  54 {
  55         PurplePluginProtocolInfo *prpl_info;
  56         PurpleWhiteboard *wb = g_new0(PurpleWhiteboard, 1);
  57
  58         wb->account = account;
  59         wb->state   = state;
  60         wb->who     = g_strdup(who);
  61
  62         prpl_info = PURPLE_PLUGIN_PROTOCOL_INFO(purple_connection_get_prpl(
  63                                 purple_account_get_connection(account)));
  64         purple_whiteboard_set_prpl_ops(wb, prpl_info->whiteboard_prpl_ops);
  65
  66         /* Start up protocol specifics */
  67         if(wb->prpl_ops && wb->prpl_ops->start)
  68                 wb->prpl_ops->start(wb);
  69
  70         wbList = g_list_append(wbList, wb);
  71
  72         return wb;
  73 }
  74
  75 void purple_whiteboard_destroy(PurpleWhiteboard *wb)
  76 {
  77         g_return_if_fail(wb != NULL);
  78
  79         if(wb->ui_data)
  80         {
  81                 /* Destroy frontend */
  82                 if(whiteboard_ui_ops && whiteboard_ui_ops->destroy)
  83                         whiteboard_ui_ops->destroy(wb);
  84         }
  85
  86         /* Do protocol specific session ending procedures */
  87         if(wb->prpl_ops && wb->prpl_ops->end)
  88                 wb->prpl_ops->end(wb);
  89
  90         g_free(wb->who);
  91         wbList = g_list_remove(wbList, wb);
  92         g_free(wb);
  93 }
  94
  95 void purple_whiteboard_start(PurpleWhiteboard *wb)
  96 {
  97         /* Create frontend for whiteboard */
  98         if(whiteboard_ui_ops && whiteboard_ui_ops->create)
  99                 whiteboard_ui_ops->create(wb);
 100 }
 101
 102 /* Looks through the list of whiteboard sessions for one that is between
 103  * usernames 'me' and 'who'.  Returns a pointer to a matching whiteboard
 104  * session; if none match, it returns NULL.
 105  */
 106 PurpleWhiteboard *purple_whiteboard_get_session(const PurpleAccount *account, const char *who)
 107 {
 108         PurpleWhiteboard *wb;
 109
 110         GList *l = wbList;
 111
 112         /* Look for a whiteboard session between the local user and the remote user
 113          */
 114         while(l != NULL)
 115         {
 116                 wb = l->data;
 117
 118                 if(wb->account == account && !strcmp(wb->who, who))
 119                         return wb;
 120
 121                 l = l->next;
 122         }
 123
 124         return NULL;
 125 }
 126
 127 void purple_whiteboard_draw_list_destroy(GList *draw_list)
 128 {
 129         g_list_free(draw_list);
 130 }
 131
 132 gboolean purple_whiteboard_get_dimensions(const PurpleWhiteboard *wb, int *width, int *height)
 133 {
 134         PurpleWhiteboardPrplOps *prpl_ops = wb->prpl_ops;
 135
 136         if (prpl_ops && prpl_ops->get_dimensions)
 137         {
 138                 prpl_ops->get_dimensions(wb, width, height);
 139                 return TRUE;
 140         }
 141
 142         return FALSE;
 143 }
 144
 145 void purple_whiteboard_set_dimensions(PurpleWhiteboard *wb, int width, int height)
 146 {
 147         if(whiteboard_ui_ops && whiteboard_ui_ops->set_dimensions)
 148                 whiteboard_ui_ops->set_dimensions(wb, width, height);
 149 }
 150
 151 void purple_whiteboard_send_draw_list(PurpleWhiteboard *wb, GList *list)
 152 {
 153         PurpleWhiteboardPrplOps *prpl_ops = wb->prpl_ops;
 154
 155         if (prpl_ops && prpl_ops->send_draw_list)
 156                 prpl_ops->send_draw_list(wb, list);
 157 }
 158
 159 void purple_whiteboard_draw_point(PurpleWhiteboard *wb, int x, int y, int color, int size)
 160 {
 161         if(whiteboard_ui_ops && whiteboard_ui_ops->draw_point)
 162                 whiteboard_ui_ops->draw_point(wb, x, y, color, size);
 163 }
 164
 165 void purple_whiteboard_draw_line(PurpleWhiteboard *wb, int x1, int y1, int x2, int y2, int color, int size)
 166 {
 167         if(whiteboard_ui_ops && whiteboard_ui_ops->draw_line)
 168                 whiteboard_ui_ops->draw_line(wb, x1, y1, x2, y2, color, size);
 169 }
 170
 171 void purple_whiteboard_clear(PurpleWhiteboard *wb)
 172 {
 173         if(whiteboard_ui_ops && whiteboard_ui_ops->clear)
 174                 whiteboard_ui_ops->clear(wb);
 175 }
 176
 177 void purple_whiteboard_send_clear(PurpleWhiteboard *wb)
 178 {
 179         PurpleWhiteboardPrplOps *prpl_ops = wb->prpl_ops;
 180
 181         if (prpl_ops && prpl_ops->clear)
 182                 prpl_ops->clear(wb);
 183 }
 184
 185 void purple_whiteboard_send_brush(PurpleWhiteboard *wb, int size, int color)
 186 {
 187         PurpleWhiteboardPrplOps *prpl_ops = wb->prpl_ops;
 188
 189         if (prpl_ops && prpl_ops->set_brush)
 190                 prpl_ops->set_brush(wb, size, color);
 191 }
 192
 193 gboolean purple_whiteboard_get_brush(const PurpleWhiteboard *wb, int *size, int *color)
 194 {
 195         PurpleWhiteboardPrplOps *prpl_ops = wb->prpl_ops;
 196
 197         if (prpl_ops && prpl_ops->get_brush)
 198         {
 199                 prpl_ops->get_brush(wb, size, color);
 200                 return TRUE;
 201         }
 202         return FALSE;
 203 }
 204
 205 void purple_whiteboard_set_brush(PurpleWhiteboard *wb, int size, int color)
 206 {
 207         if (whiteboard_ui_ops && whiteboard_ui_ops->set_brush)
 208                 whiteboard_ui_ops->set_brush(wb, size, color);
 209 }
 210