git.maemo.org Git - modest/blob - src/modest-formatter.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 <glib/gi18n.h>
  31 #include <string.h>
  32 #include <tny-header.h>
  33 #include <tny-gtk-text-buffer-stream.h>
  34 #include <tny-camel-stream.h>
  35 #include <camel/camel-stream-mem.h>
  36 #include "modest-formatter.h"
  37 #include "modest-text-utils.h"
  38 #include "modest-tny-platform-factory.h"
  39 #include <modest-runtime.h>
  40
  41 typedef struct _ModestFormatterPrivate ModestFormatterPrivate;
  42 struct _ModestFormatterPrivate {
  43         gchar *content_type;
  44         gchar *signature;
  45 };
  46 #define MODEST_FORMATTER_GET_PRIVATE(o)  (G_TYPE_INSTANCE_GET_PRIVATE((o), \
  47                                           MODEST_TYPE_FORMATTER, \
  48                                           ModestFormatterPrivate))
  49
  50 static GObjectClass *parent_class = NULL;
  51
  52 typedef gchar* FormatterFunc (ModestFormatter *self, const gchar *text, TnyHeader *header);
  53
  54 static TnyMsg *modest_formatter_do (ModestFormatter *self, TnyMimePart *body,  TnyHeader *header,
  55                                     FormatterFunc func);
  56
  57 static gchar*  modest_formatter_wrapper_cite   (ModestFormatter *self, const gchar *text, TnyHeader *header);
  58 static gchar*  modest_formatter_wrapper_quote  (ModestFormatter *self, const gchar *text, TnyHeader *header);
  59 static gchar*  modest_formatter_wrapper_inline (ModestFormatter *self, const gchar *text, TnyHeader *header);
  60
  61 static gchar *
  62 extract_text (ModestFormatter *self, TnyMimePart *body)
  63 {
  64         TnyStream *stream;
  65         GtkTextBuffer *buf;
  66         GtkTextIter start, end;
  67         gchar *text, *converted_text;
  68         ModestFormatterPrivate *priv;
  69
  70         buf = gtk_text_buffer_new (NULL);
  71         stream = TNY_STREAM (tny_gtk_text_buffer_stream_new (buf));
  72         tny_stream_reset (stream);
  73         tny_mime_part_decode_to_stream (body, stream);
  74         tny_stream_reset (stream);
  75
  76         g_object_unref (G_OBJECT(stream));
  77
  78         gtk_text_buffer_get_bounds (buf, &start, &end);
  79         text = gtk_text_buffer_get_text (buf, &start, &end, FALSE);
  80         g_object_unref (G_OBJECT(buf));
  81
  82         /* Convert to desired content type if needed */
  83         priv = MODEST_FORMATTER_GET_PRIVATE (self);
  84
  85         if (strcmp (tny_mime_part_get_content_type (body), priv->content_type) == 0) {
  86                 if (!strcmp (priv->content_type, "text/html"))
  87                         converted_text = modest_text_utils_convert_to_html  (text);
  88                 else
  89                         converted_text = g_strdup (text);
  90
  91                 g_free (text);
  92                 text = converted_text;
  93         }
  94         return text;
  95 }
  96
  97 static void
  98 construct_from_text (TnyMimePart *part,
  99                      const gchar *text,
 100                      const gchar *content_type)
 101 {
 102         TnyStream *text_body_stream;
 103
 104         /* Create the stream */
 105         text_body_stream = TNY_STREAM (tny_camel_stream_new
 106                                        (camel_stream_mem_new_with_buffer
 107                                         (text, strlen(text))));
 108
 109         /* Construct MIME part */
 110         tny_stream_reset (text_body_stream);
 111         tny_mime_part_construct_from_stream (part, text_body_stream, content_type);
 112         tny_stream_reset (text_body_stream);
 113
 114         /* Clean */
 115         g_object_unref (G_OBJECT (text_body_stream));
 116 }
 117
 118 static TnyMsg *
 119 modest_formatter_do (ModestFormatter *self, TnyMimePart *body, TnyHeader *header, FormatterFunc func)
 120 {
 121         TnyMsg *new_msg = NULL;
 122         gchar *body_text = NULL, *txt = NULL;
 123         ModestFormatterPrivate *priv;
 124
 125         g_return_val_if_fail (self, NULL);
 126         g_return_val_if_fail (header, NULL);
 127         g_return_val_if_fail (func, NULL);
 128
 129         /* Build new part */
 130         new_msg = tny_platform_factory_new_msg (modest_runtime_get_platform_factory());
 131
 132         if (body)
 133                 body_text = extract_text (self, body);
 134         else
 135                 body_text = g_strdup ("");
 136
 137         txt = (gchar *) func (self, (const gchar*) body_text, header);
 138         priv = MODEST_FORMATTER_GET_PRIVATE (self);
 139         construct_from_text (TNY_MIME_PART (new_msg), (const gchar*) txt, priv->content_type);
 140
 141         /* Clean */
 142         g_free (body_text);
 143         g_free (txt);
 144
 145         return new_msg;
 146 }
 147
 148 TnyMsg *
 149 modest_formatter_cite (ModestFormatter *self, TnyMimePart *body, TnyHeader *header)
 150 {
 151         return modest_formatter_do (self, body, header, modest_formatter_wrapper_cite);
 152 }
 153
 154 TnyMsg *
 155 modest_formatter_quote (ModestFormatter *self, TnyMimePart *body, TnyHeader *header)
 156 {
 157         return modest_formatter_do (self, body, header, modest_formatter_wrapper_quote);
 158 }
 159
 160 TnyMsg *
 161 modest_formatter_inline (ModestFormatter *self, TnyMimePart *body, TnyHeader *header)
 162 {
 163         return modest_formatter_do (self, body, header, modest_formatter_wrapper_inline);
 164 }
 165
 166 TnyMsg *
 167 modest_formatter_attach (ModestFormatter *self, TnyMimePart *body, TnyHeader *header)
 168 {
 169         TnyMsg *new_msg = NULL;
 170         gchar *attach_text = NULL;
 171         const gchar *subject;
 172         TnyMimePart *body_part = NULL, *attach_part = NULL;
 173         ModestFormatterPrivate *priv;
 174         TnyPlatformFactory *fact;
 175
 176         fact = modest_runtime_get_platform_factory ();
 177         /* Build new part */
 178         new_msg     = tny_platform_factory_new_msg (fact);
 179         body_part   = tny_platform_factory_new_mime_part (fact);
 180         attach_part = tny_platform_factory_new_mime_part (fact);
 181
 182         /* Create the two parts */
 183         priv = MODEST_FORMATTER_GET_PRIVATE (self);
 184         attach_text = extract_text (self, body);
 185         construct_from_text (body_part, "", priv->content_type);
 186         construct_from_text (attach_part, (const gchar*) attach_text, priv->content_type);
 187         subject = tny_header_get_subject (header);
 188         tny_mime_part_set_filename (attach_part, subject ? subject : _("No subject"));
 189
 190         /* Add parts */
 191         tny_mime_part_add_part (TNY_MIME_PART (new_msg), body_part);
 192         tny_mime_part_add_part (TNY_MIME_PART (new_msg), attach_part);
 193
 194         /* Clean */
 195         g_free (attach_text);
 196
 197         return new_msg;
 198 }
 199
 200 ModestFormatter*
 201 modest_formatter_new (const gchar *content_type, const gchar *signature)
 202 {
 203         ModestFormatter *formatter;
 204         ModestFormatterPrivate *priv;
 205
 206         formatter = g_object_new (MODEST_TYPE_FORMATTER, NULL);
 207         priv = MODEST_FORMATTER_GET_PRIVATE (formatter);
 208         priv->content_type = g_strdup (content_type);
 209         priv->signature = g_strdup (signature);
 210
 211         return formatter;
 212 }
 213
 214 static void
 215 modest_formatter_instance_init (GTypeInstance *instance, gpointer g_class)
 216 {
 217         ModestFormatter *self = (ModestFormatter *)instance;
 218         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 219
 220         priv->content_type = NULL;
 221 }
 222
 223 static void
 224 modest_formatter_finalize (GObject *object)
 225 {
 226         ModestFormatter *self = (ModestFormatter *)object;
 227         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 228
 229         if (priv->content_type)
 230                 g_free (priv->content_type);
 231
 232         if (priv->signature)
 233                 g_free (priv->signature);
 234
 235         (*parent_class->finalize) (object);
 236 }
 237
 238 static void
 239 modest_formatter_class_init (ModestFormatterClass *class)
 240 {
 241         GObjectClass *object_class;
 242
 243         parent_class = g_type_class_peek_parent (class);
 244         object_class = (GObjectClass*) class;
 245         object_class->finalize = modest_formatter_finalize;
 246
 247         g_type_class_add_private (object_class, sizeof (ModestFormatterPrivate));
 248 }
 249
 250 GType
 251 modest_formatter_get_type (void)
 252 {
 253         static GType type = 0;
 254
 255         if (G_UNLIKELY(type == 0))
 256         {
 257                 static const GTypeInfo info =
 258                 {
 259                   sizeof (ModestFormatterClass),
 260                   NULL,   /* base_init */
 261                   NULL,   /* base_finalize */
 262                   (GClassInitFunc) modest_formatter_class_init,   /* class_init */
 263                   NULL,   /* class_finalize */
 264                   NULL,   /* class_data */
 265                   sizeof (ModestFormatter),
 266                   0,      /* n_preallocs */
 267                   modest_formatter_instance_init    /* instance_init */
 268                 };
 269
 270                 type = g_type_register_static (G_TYPE_OBJECT,
 271                         "ModestFormatter",
 272                         &info, 0);
 273         }
 274
 275         return type;
 276 }
 277
 278 /****************/
 279 static gchar *
 280 modest_formatter_wrapper_cite (ModestFormatter *self, const gchar *text, TnyHeader *header)
 281 {
 282         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 283
 284         return modest_text_utils_cite (text,
 285                                        priv->content_type,
 286                                        priv->signature,
 287                                        tny_header_get_from (header),
 288                                        tny_header_get_date_sent (header));
 289 }
 290
 291 static gchar *
 292 modest_formatter_wrapper_inline (ModestFormatter *self, const gchar *text, TnyHeader *header)
 293 {
 294         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 295
 296         return modest_text_utils_inline (text,
 297                                          priv->content_type,
 298                                          priv->signature,
 299                                          tny_header_get_from (header),
 300                                          tny_header_get_date_sent (header),
 301                                          tny_header_get_to (header),
 302                                          tny_header_get_subject (header));
 303 }
 304
 305 static gchar *
 306 modest_formatter_wrapper_quote (ModestFormatter *self, const gchar *text, TnyHeader *header)
 307 {
 308         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 309
 310         /* TODO: get 80 from the configuration */
 311         return modest_text_utils_quote (text,
 312                                         priv->content_type,
 313                                         priv->signature,
 314                                         tny_header_get_from (header),
 315                                         tny_header_get_date_sent (header),
 316                                         80);
 317 }