git.maemo.org Git - modest/blob - src/modest-email-clipboard.c

   1 /* Copyright (c) 2006, Nokia Corporation
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  * * Redistributions in binary form must reproduce the above copyright
  11  *   notice, this list of conditions and the following disclaimer in the
  12  *   documentation and/or other materials provided with the distribution.
  13  * * Neither the name of the Nokia Corporation nor the names of its
  14  *   contributors may be used to endorse or promote products derived from
  15  *   this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include <modest-email-clipboard.h>
  31 #include <modest-tny-folder.h>
  32
  33 /* 'private'/'protected' functions */
  34 static void modest_email_clipboard_class_init (ModestEmailClipboardClass * klass);
  35 static void modest_email_clipboard_init       (ModestEmailClipboard * obj);
  36 static void modest_email_clipboard_finalize   (GObject * obj);
  37
  38 /* globals */
  39 static GObjectClass *parent_class = NULL;
  40
  41 struct _ModestEmailClipboardPrivate {
  42         TnyList    *selection;
  43         TnyFolder  *src;
  44         gchar      **hidding;
  45         gboolean   delete;
  46 };
  47
  48
  49 #define MODEST_EMAIL_CLIPBOARD_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
  50                                                 MODEST_TYPE_EMAIL_CLIPBOARD, \
  51                                                 ModestEmailClipboardPrivate))
  52
  53
  54 GType
  55 modest_email_clipboard_get_type (void)
  56 {
  57         static GType my_type = 0;
  58
  59         if (G_UNLIKELY (!my_type)) {
  60                 static const GTypeInfo my_info = {
  61                         sizeof (ModestEmailClipboardClass),
  62                         NULL,   /* base init */
  63                         NULL,   /* base finalize */
  64                         (GClassInitFunc) modest_email_clipboard_class_init,
  65                         NULL,   /* class finalize */
  66                         NULL,   /* class data */
  67                         sizeof (ModestEmailClipboard),
  68                         1,      /* n_preallocs */
  69                         (GInstanceInitFunc) modest_email_clipboard_init,
  70                         NULL
  71                 };
  72
  73                 my_type = g_type_register_static (G_TYPE_OBJECT,
  74                                                   "ModestEmailClipboard",
  75                                                   &my_info, 0);
  76         }
  77         return my_type;
  78 }
  79
  80
  81
  82 static void
  83 modest_email_clipboard_class_init (ModestEmailClipboardClass * klass)
  84 {
  85         GObjectClass *gobject_class;
  86         gobject_class = (GObjectClass *) klass;
  87
  88         parent_class = g_type_class_peek_parent (klass);
  89         gobject_class->finalize = modest_email_clipboard_finalize;
  90
  91         g_type_class_add_private (gobject_class,
  92                                   sizeof (ModestEmailClipboardPrivate));
  93
  94         /* signal definitions */
  95 }
  96
  97
  98 static void
  99 modest_email_clipboard_init (ModestEmailClipboard * obj)
 100 {
 101
 102         if (obj->priv == NULL)
 103                 obj->priv = MODEST_EMAIL_CLIPBOARD_GET_PRIVATE (obj);
 104
 105         obj->priv->src = NULL;
 106         obj->priv->selection = NULL;
 107         obj->priv->hidding = NULL;
 108         obj->priv->delete = FALSE;
 109 }
 110
 111 static void
 112 modest_email_clipboard_finalize (GObject * obj)
 113 {
 114         /* Clear objects stored on clipboard */
 115         modest_email_clipboard_clear (MODEST_EMAIL_CLIPBOARD(obj));
 116
 117         G_OBJECT_CLASS(parent_class)->finalize (obj);
 118 }
 119
 120
 121 ModestEmailClipboard *
 122 modest_email_clipboard_new (void)
 123 {
 124         GObject *obj;
 125         obj = G_OBJECT (g_object_new (MODEST_TYPE_EMAIL_CLIPBOARD, NULL));
 126
 127         return MODEST_EMAIL_CLIPBOARD (obj);
 128 }
 129
 130
 131 void
 132 modest_email_clipboard_get_data (ModestEmailClipboard *self,
 133                                  TnyFolder **src_folder,
 134                                  TnyList **data,
 135                                  gboolean *delete)
 136 {
 137         ModestEmailClipboardPrivate *priv = NULL;;
 138
 139         *src_folder = NULL;
 140         *data = NULL;
 141         *delete = FALSE;
 142
 143         g_return_if_fail (MODEST_IS_EMAIL_CLIPBOARD (self));
 144         priv = MODEST_EMAIL_CLIPBOARD_GET_PRIVATE (self);
 145         g_return_if_fail (TNY_IS_FOLDER (priv->src));
 146
 147         /* if no data into clipboard, do nothing */
 148         if (modest_email_clipboard_cleared (self)) return;
 149
 150         /* Get data stored on clipboard */
 151         *src_folder = g_object_ref(priv->src);
 152         if (priv->selection)
 153                 *data = g_object_ref(priv->selection);
 154         *delete = priv->delete;
 155
 156         /* Clear objects stored on clipboard */
 157         modest_email_clipboard_clear (MODEST_EMAIL_CLIPBOARD(self));
 158 }
 159
 160 void
 161 modest_email_clipboard_set_data (ModestEmailClipboard *self,
 162                                  TnyFolder *src_folder,
 163                                  TnyList *data,
 164                                  gboolean delete)
 165 {
 166         ModestEmailClipboardPrivate *priv = NULL;;
 167         TnyIterator *iter = NULL;
 168         GObject *obj = NULL;
 169         gchar *id = NULL;
 170         guint i, n_selected;
 171
 172         g_return_if_fail (MODEST_IS_EMAIL_CLIPBOARD (self));
 173         g_return_if_fail (TNY_IS_FOLDER (src_folder));
 174         priv = MODEST_EMAIL_CLIPBOARD_GET_PRIVATE (self);
 175
 176         /* if data into clipboard, clear them  */
 177         if (!modest_email_clipboard_cleared (self))
 178                 modest_email_clipboard_clear (self);
 179
 180         /* set new data */
 181         priv->src = g_object_ref (src_folder);
 182         if (data != NULL)
 183                 priv->selection = g_object_ref (data);
 184         priv->delete = delete;
 185         priv->hidding = NULL;
 186
 187         /* Fill hidding array (for cut operation) */
 188         if (delete) {
 189                 n_selected = 1;
 190                 if (data != NULL) {
 191                         n_selected = tny_list_get_length (data);
 192                         priv->hidding = g_malloc0(sizeof(gchar *) * n_selected);
 193                         iter = tny_list_create_iterator (priv->selection);
 194                         i = 0;
 195                         while (!tny_iterator_is_done (iter)) {
 196                                 obj = tny_iterator_get_current (iter);
 197                                 if (obj && TNY_IS_HEADER (obj))
 198                                         id = g_strdup(tny_header_get_message_id (TNY_HEADER (obj)));
 199
 200                                 priv->hidding[i++] = id;
 201                                 tny_iterator_next (iter);
 202
 203                                 if (obj)
 204                                         g_object_unref (obj);
 205                         }
 206                         g_object_unref (iter);
 207                 }
 208                 else {
 209                         priv->hidding = g_malloc0(sizeof(gchar *));
 210                         id = g_strdup (tny_folder_get_id (src_folder));
 211                         priv->hidding[0] = id;
 212                 }
 213         }
 214 }
 215
 216 void
 217 modest_email_clipboard_clear (ModestEmailClipboard *self)
 218 {
 219         ModestEmailClipboardPrivate *priv = NULL;
 220         guint i, n_selected;
 221
 222         g_return_if_fail (MODEST_IS_EMAIL_CLIPBOARD (self));
 223         priv = MODEST_EMAIL_CLIPBOARD_GET_PRIVATE (self);
 224
 225         n_selected = 1;
 226         if (priv->src)
 227                 g_object_unref (priv->src);
 228         if (priv->selection) {
 229                 n_selected = tny_list_get_length(priv->selection);
 230                 g_object_unref (priv->selection);
 231         }
 232         if (priv->hidding) {
 233                 for (i=0; i < n_selected; i++)
 234                         g_free (priv->hidding[i]);
 235                 g_free(priv->hidding);
 236         }
 237
 238         priv->src = NULL;
 239         priv->selection = NULL;
 240         priv->hidding = NULL;
 241         priv->delete = FALSE;
 242 }
 243
 244 gboolean
 245 modest_email_clipboard_cleared (ModestEmailClipboard *self)
 246 {
 247         gboolean cleared = FALSE;
 248
 249         g_return_val_if_fail (MODEST_IS_EMAIL_CLIPBOARD (self), TRUE);
 250
 251         cleared = ((self->priv->src == NULL) && (self->priv->selection == NULL));
 252
 253         return cleared;
 254 }
 255
 256 gboolean
 257 modest_email_clipboard_check_source_folder (ModestEmailClipboard *self,
 258                                             TnyFolder *folder)
 259 {
 260         TnyFolderType folder_type1;
 261         TnyFolderType folder_type2;
 262         ModestEmailClipboardPrivate *priv = NULL;;
 263         const gchar *id1 = NULL;
 264         const gchar *id2 = NULL;
 265         gboolean same_folder = FALSE;
 266
 267         g_return_val_if_fail (MODEST_IS_EMAIL_CLIPBOARD (self), TRUE);
 268         g_return_val_if_fail (TNY_IS_FOLDER (folder), TRUE);
 269         priv = MODEST_EMAIL_CLIPBOARD_GET_PRIVATE (self);
 270
 271         /* If cleared, return always FALSE*/
 272         if (modest_email_clipboard_cleared (self)) return FALSE;
 273
 274         /* Check target and source folders */
 275         id1 = tny_folder_get_id (priv->src);
 276         id2 = tny_folder_get_id (TNY_FOLDER(folder));
 277         folder_type1 = modest_tny_folder_guess_folder_type (priv->src);
 278         folder_type2 = modest_tny_folder_guess_folder_type (folder);
 279
 280         if (folder_type1 == TNY_FOLDER_TYPE_INVALID || folder_type2 == TNY_FOLDER_TYPE_INVALID)
 281                 g_warning ("%s: BUG: folder of type TNY_FOLDER_TYPE_INVALID", __FUNCTION__);
 282
 283         same_folder = ((folder_type1 == folder_type2) &&
 284                        (!g_ascii_strcasecmp (id1, id2)));
 285
 286         return same_folder;
 287 }
 288
 289 gboolean
 290 modest_email_clipboard_headers_copied (ModestEmailClipboard *self)
 291 {
 292         ModestEmailClipboardPrivate *priv = NULL;;
 293         gboolean result = FALSE;
 294
 295         g_return_val_if_fail (MODEST_IS_EMAIL_CLIPBOARD (self), FALSE);
 296         priv = MODEST_EMAIL_CLIPBOARD_GET_PRIVATE (self);
 297
 298         result = priv->selection != NULL;
 299
 300         return result;
 301 }
 302
 303 gboolean
 304 modest_email_clipboard_folder_copied (ModestEmailClipboard *self)
 305 {
 306         ModestEmailClipboardPrivate *priv = NULL;;
 307         gboolean result = FALSE;
 308
 309         g_return_val_if_fail (MODEST_IS_EMAIL_CLIPBOARD (self), FALSE);
 310         priv = MODEST_EMAIL_CLIPBOARD_GET_PRIVATE (self);
 311
 312         result = ((priv->selection == NULL) && (priv->src != NULL));
 313
 314         return result;
 315 }
 316
 317 const gchar *
 318 modest_email_clipboard_get_folder_name (ModestEmailClipboard *self)
 319 {
 320         ModestEmailClipboardPrivate *priv = NULL;;
 321         const gchar *folder_name = NULL;
 322
 323         g_return_val_if_fail (MODEST_IS_EMAIL_CLIPBOARD (self), NULL);
 324         priv = MODEST_EMAIL_CLIPBOARD_GET_PRIVATE (self);
 325
 326         /* If cleared, return always FALSE*/
 327         if (modest_email_clipboard_cleared (self)) return NULL;
 328
 329         /* Check target and source folders */
 330         folder_name = tny_folder_get_name (priv->src);
 331
 332         return folder_name;
 333 }
 334
 335 const gchar **
 336 modest_email_clipboard_get_hidding_ids (ModestEmailClipboard *self,
 337                                         guint *n_selected)
 338 {
 339         ModestEmailClipboardPrivate *priv = NULL;;
 340
 341         *n_selected = 0;
 342
 343         g_return_val_if_fail (MODEST_IS_EMAIL_CLIPBOARD (self), NULL);
 344         priv = MODEST_EMAIL_CLIPBOARD_GET_PRIVATE (self);
 345
 346         if (priv->selection != NULL)
 347                 *n_selected = tny_list_get_length (priv->selection);
 348         else
 349                 *n_selected = 1;
 350
 351         return (const gchar **) priv->hidding;
 352 }
 353