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
  32 /* 'private'/'protected' functions */
  33 static void modest_email_clipboard_class_init (ModestEmailClipboardClass * klass);
  34 static void modest_email_clipboard_init       (ModestEmailClipboard * obj);
  35 static void modest_email_clipboard_finalize   (GObject * obj);
  36
  37 /* globals */
  38 static GObjectClass *parent_class = NULL;
  39
  40 typedef struct _ModestEmailClipboardPrivate ModestEmailClipboardPrivate;
  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 (!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         ModestEmailClipboardPrivate *priv =
 102                 MODEST_EMAIL_CLIPBOARD_GET_PRIVATE (obj);
 103
 104         priv->src = NULL;
 105         priv->selection = NULL;
 106         priv->hidding = NULL;
 107         priv->delete = FALSE;
 108 }
 109
 110 static void
 111 modest_email_clipboard_finalize (GObject * obj)
 112 {
 113         /* Clear objects stored on clipboard */
 114         modest_email_clipboard_clear (MODEST_EMAIL_CLIPBOARD(obj));
 115
 116         G_OBJECT_CLASS(parent_class)->finalize (obj);
 117 }
 118
 119
 120 ModestEmailClipboard *
 121 modest_email_clipboard_new ()
 122 {
 123         GObject *obj;
 124         ModestEmailClipboardPrivate *priv;
 125
 126         obj = G_OBJECT (g_object_new (MODEST_TYPE_EMAIL_CLIPBOARD, NULL));
 127         priv = MODEST_EMAIL_CLIPBOARD_GET_PRIVATE (obj);
 128
 129         return MODEST_EMAIL_CLIPBOARD (obj);
 130 }
 131
 132
 133 void
 134 modest_email_clipboard_get_data (ModestEmailClipboard *self,
 135                                  TnyFolder **src_folder,
 136                                  TnyList **data,
 137                                  gboolean *delete)
 138 {
 139         ModestEmailClipboardPrivate *priv = NULL;;
 140
 141         *src_folder = NULL;
 142         *data = NULL;
 143         *delete = FALSE;
 144
 145         g_return_if_fail (MODEST_IS_EMAIL_CLIPBOARD (self));
 146         priv = MODEST_EMAIL_CLIPBOARD_GET_PRIVATE (self);
 147         g_return_if_fail (TNY_IS_FOLDER (priv->src));
 148
 149         /* if no data into clipboard, do nothing */
 150         if (modest_email_clipboard_cleared (self)) return;
 151
 152         /* Get data stored on clipboard */
 153         *src_folder = g_object_ref(priv->src);
 154         if (priv->selection)
 155                 *data = g_object_ref(priv->selection);
 156         *delete = priv->delete;
 157
 158         /* Clear objects stored on clipboard */
 159         modest_email_clipboard_clear (MODEST_EMAIL_CLIPBOARD(self));
 160 }
 161
 162 void
 163 modest_email_clipboard_set_data (ModestEmailClipboard *self,
 164                                  TnyFolder *src_folder,
 165                                  TnyList *data,
 166                                  gboolean delete)
 167 {
 168         ModestEmailClipboardPrivate *priv = NULL;;
 169         TnyIterator *iter = NULL;
 170         GObject *obj = NULL;
 171         gchar *id = NULL;
 172         guint i, n_selected;
 173
 174         g_return_if_fail (MODEST_IS_EMAIL_CLIPBOARD (self));
 175         g_return_if_fail (TNY_IS_FOLDER (src_folder));
 176         priv = MODEST_EMAIL_CLIPBOARD_GET_PRIVATE (self);
 177
 178         /* if data into clipboard, clear them  */
 179         if (!modest_email_clipboard_cleared (self))
 180                 modest_email_clipboard_clear (self);
 181
 182         /* set new data */
 183         priv->src = g_object_ref (src_folder);
 184         if (data != NULL)
 185                 priv->selection = g_object_ref (data);
 186         priv->delete = delete;
 187         priv->hidding = NULL;
 188
 189         /* Fill hidding array (for cut operation) */
 190         if (delete) {
 191                 n_selected = 1;
 192                 if (data != NULL) {
 193                         n_selected = tny_list_get_length (data);
 194                         priv->hidding = g_malloc0(sizeof(gchar *) * n_selected);
 195                         iter = tny_list_create_iterator (priv->selection);
 196                         i = 0;
 197                         while (!tny_iterator_is_done (iter)) {
 198                                 obj = tny_iterator_get_current (iter);
 199                                 if (TNY_IS_HEADER (obj))
 200                                         id = g_strdup(tny_header_get_message_id (TNY_HEADER (obj)));
 201
 202                                 priv->hidding[i++] = id;
 203                                 tny_iterator_next (iter);
 204
 205                                 g_object_unref (obj);
 206                         }
 207                         g_object_unref (iter);
 208                 }
 209                 else {
 210                         priv->hidding = g_malloc0(sizeof(gchar *));
 211                         id = g_strdup (tny_folder_get_id (src_folder));
 212                         priv->hidding[0] = id;
 213                 }
 214         }
 215 }
 216
 217 void
 218 modest_email_clipboard_clear (ModestEmailClipboard *self)
 219 {
 220         ModestEmailClipboardPrivate *priv = NULL;
 221         guint i, n_selected;
 222
 223         g_return_if_fail (MODEST_IS_EMAIL_CLIPBOARD (self));
 224         priv = MODEST_EMAIL_CLIPBOARD_GET_PRIVATE (self);
 225
 226         n_selected = 1;
 227         if (priv->src)
 228                 g_object_unref (priv->src);
 229         if (priv->selection) {
 230                 n_selected = tny_list_get_length(priv->selection);
 231                 g_object_unref (priv->selection);
 232         }
 233         if (priv->hidding) {
 234                 for (i=0; i < n_selected; i++)
 235                         g_free (priv->hidding[i]);
 236                 g_free(priv->hidding);
 237         }
 238
 239         priv->src = NULL;
 240         priv->selection = NULL;
 241         priv->hidding = NULL;
 242         priv->delete = FALSE;
 243 }
 244
 245 gboolean
 246 modest_email_clipboard_cleared (ModestEmailClipboard *self)
 247 {
 248         ModestEmailClipboardPrivate *priv = NULL;;
 249         gboolean cleared = FALSE;
 250
 251         g_return_val_if_fail (MODEST_IS_EMAIL_CLIPBOARD (self), TRUE);
 252         priv = MODEST_EMAIL_CLIPBOARD_GET_PRIVATE (self);
 253
 254         cleared = ((priv->src == NULL) && (priv->selection == NULL));
 255
 256         return cleared;
 257 }
 258
 259 gboolean
 260 modest_email_clipboard_check_source_folder (ModestEmailClipboard *self,
 261                                             const TnyFolder *folder)
 262 {
 263         ModestEmailClipboardPrivate *priv = NULL;;
 264         const gchar *id1 = NULL;
 265         const gchar *id2 = NULL;
 266         gboolean same_folder = FALSE;
 267
 268         g_return_val_if_fail (MODEST_IS_EMAIL_CLIPBOARD (self), TRUE);
 269         g_return_val_if_fail (TNY_IS_FOLDER (folder), TRUE);
 270         priv = MODEST_EMAIL_CLIPBOARD_GET_PRIVATE (self);
 271
 272         /* If cleared, return always FALSE*/
 273         if (modest_email_clipboard_cleared (self)) return FALSE;
 274
 275         /* Check target and source folders */
 276         id1 = tny_folder_get_id (priv->src);
 277         id2 = tny_folder_get_id (TNY_FOLDER(folder));
 278         same_folder = !g_ascii_strcasecmp (id1, id2);
 279
 280         return same_folder;
 281 }
 282
 283 const gchar **
 284 modest_email_clipboard_get_hidding_ids (ModestEmailClipboard *self,
 285                                         guint *n_selected)
 286 {
 287         ModestEmailClipboardPrivate *priv = NULL;;
 288
 289         *n_selected = 0;
 290
 291         g_return_val_if_fail (MODEST_IS_EMAIL_CLIPBOARD (self), NULL);
 292         priv = MODEST_EMAIL_CLIPBOARD_GET_PRIVATE (self);
 293
 294         if (priv->selection != NULL)
 295                 *n_selected = tny_list_get_length (priv->selection);
 296         else
 297                 *n_selected = 1;
 298
 299         return (const gchar **) priv->hidding;
 300 }
 301