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
  40 typedef struct _ModestFormatterPrivate ModestFormatterPrivate;
  41 struct _ModestFormatterPrivate {
  42         gchar *content_type;
  43 };
  44 #define MODEST_FORMATTER_GET_PRIVATE(o)  (G_TYPE_INSTANCE_GET_PRIVATE((o), \
  45                                           MODEST_TYPE_FORMATTER, \
  46                                           ModestFormatterPrivate))
  47
  48 static GObjectClass *parent_class = NULL;
  49
  50 typedef gchar* FormatterFunc (ModestFormatter *self, const gchar *text, TnyHeader *header);
  51
  52 static TnyMsg *modest_formatter_do (ModestFormatter *self,
  53                                     TnyMimePart *body,
  54                                     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         g_object_unref (G_OBJECT(body));
  78
  79         gtk_text_buffer_get_bounds (buf, &start, &end);
  80         text = gtk_text_buffer_get_text (buf, &start, &end, FALSE);
  81         g_object_unref (buf);
  82
  83         /* Convert to desired content type if needed */
  84         priv = MODEST_FORMATTER_GET_PRIVATE (self);
  85
  86         if (strcmp (tny_mime_part_get_content_type (body), priv->content_type)) {
  87                 if (!strcmp (priv->content_type, "text/html"))
  88                         converted_text = modest_text_utils_convert_to_html  (text);
  89                 else
  90                         converted_text = g_strdup (text);
  91 /*                      converted_text = modest_text_utils_convert_to_plain (text); */
  92
  93                 g_free (text);
  94                 text = converted_text;
  95         }
  96
  97         return text;
  98 }
  99
 100 static void
 101 construct_from_text (TnyMimePart *part,
 102                      const gchar *text,
 103                      const gchar *content_type)
 104 {
 105         TnyStream *text_body_stream;
 106
 107         /* Create the stream */
 108         text_body_stream = TNY_STREAM (tny_camel_stream_new
 109                                        (camel_stream_mem_new_with_buffer
 110                                         (text, strlen(text))));
 111
 112         /* Construct MIME part */
 113         tny_stream_reset (text_body_stream);
 114         tny_mime_part_construct_from_stream (part, text_body_stream, content_type);
 115         tny_stream_reset (text_body_stream);
 116
 117         /* Clean */
 118         g_object_unref (G_OBJECT (text_body_stream));
 119 }
 120
 121 static TnyMsg *
 122 modest_formatter_do (ModestFormatter *self,
 123                      TnyMimePart *body,
 124                      TnyHeader *header,
 125                      FormatterFunc func)
 126 {
 127         TnyMsg *new_msg = NULL;
 128         gchar *body_text = NULL, *txt = NULL;
 129         ModestFormatterPrivate *priv;
 130         TnyPlatformFactory *fact;
 131
 132         g_return_val_if_fail (self, NULL);
 133         g_return_val_if_fail (body, NULL);
 134         g_return_val_if_fail (header, NULL);
 135         g_return_val_if_fail (func, NULL);
 136
 137         /* Build new part */
 138         fact = modest_tny_platform_factory_get_instance ();
 139         new_msg = tny_platform_factory_new_msg (fact);
 140         body_text = extract_text (self, body);
 141         txt = (gchar *) func (self, (const gchar*) body_text, header);
 142         priv = MODEST_FORMATTER_GET_PRIVATE (self);
 143         construct_from_text (TNY_MIME_PART (new_msg), (const gchar*) txt, priv->content_type);
 144
 145         /* Clean */
 146         g_free (body_text);
 147         g_free (txt);
 148
 149         return new_msg;
 150 }
 151
 152 TnyMsg *
 153 modest_formatter_cite (ModestFormatter *self, TnyMimePart *body, TnyHeader *header)
 154 {
 155         return modest_formatter_do (self, body, header, modest_formatter_wrapper_cite);
 156 }
 157
 158 TnyMsg *
 159 modest_formatter_quote (ModestFormatter *self, TnyMimePart *body, TnyHeader *header)
 160 {
 161         return modest_formatter_do (self, body, header, modest_formatter_wrapper_quote);
 162 }
 163
 164 TnyMsg *
 165 modest_formatter_inline (ModestFormatter *self, TnyMimePart *body, TnyHeader *header)
 166 {
 167         return modest_formatter_do (self, body, header, modest_formatter_wrapper_inline);
 168 }
 169
 170 TnyMsg *
 171 modest_formatter_attach (ModestFormatter *self, TnyMimePart *body, TnyHeader *header)
 172 {
 173         TnyMsg *new_msg = NULL;
 174         gchar *attach_text = NULL;
 175         const gchar *subject;
 176         TnyMimePart *body_part = NULL, *attach_part = NULL;
 177         ModestFormatterPrivate *priv;
 178         TnyPlatformFactory *fact;
 179
 180         fact = modest_tny_platform_factory_get_instance ();
 181         /* Build new part */
 182         new_msg     = tny_platform_factory_new_msg (fact);
 183         body_part   = tny_platform_factory_new_mime_part (fact);
 184         attach_part = tny_platform_factory_new_mime_part (fact);
 185
 186         /* Create the two parts */
 187         priv = MODEST_FORMATTER_GET_PRIVATE (self);
 188         attach_text = extract_text (self, body);
 189         construct_from_text (body_part, "", priv->content_type);
 190         construct_from_text (attach_part, (const gchar*) attach_text, priv->content_type);
 191         subject = tny_header_get_subject (header);
 192         tny_mime_part_set_filename (attach_part, subject ? subject : _("No subject"));
 193
 194         /* Add parts */
 195         tny_mime_part_add_part (TNY_MIME_PART (new_msg), body_part);
 196         tny_mime_part_add_part (TNY_MIME_PART (new_msg), attach_part);
 197
 198         /* Clean */
 199         g_free (attach_text);
 200
 201         return new_msg;
 202 }
 203
 204 ModestFormatter*
 205 modest_formatter_new (const gchar *content_type)
 206 {
 207         ModestFormatter *formatter;
 208         ModestFormatterPrivate *priv;
 209
 210         formatter = g_object_new (MODEST_TYPE_FORMATTER, NULL);
 211         priv = MODEST_FORMATTER_GET_PRIVATE (formatter);
 212         priv->content_type = g_strdup (content_type);
 213
 214         return formatter;
 215 }
 216
 217 static void
 218 modest_formatter_instance_init (GTypeInstance *instance, gpointer g_class)
 219 {
 220         ModestFormatter *self = (ModestFormatter *)instance;
 221         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 222
 223         priv->content_type = NULL;
 224 }
 225
 226 static void
 227 modest_formatter_finalize (GObject *object)
 228 {
 229         ModestFormatter *self = (ModestFormatter *)object;
 230         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 231
 232         if (priv->content_type)
 233                 g_free (priv->content_type);
 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                                        tny_header_get_from (header),
 287                                        tny_header_get_date_sent (header));
 288 }
 289
 290 static gchar *
 291 modest_formatter_wrapper_inline (ModestFormatter *self, const gchar *text, TnyHeader *header)
 292 {
 293         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 294
 295         return modest_text_utils_inline (text,
 296                                          priv->content_type,
 297                                          tny_header_get_from (header),
 298                                          tny_header_get_date_sent (header),
 299                                          tny_header_get_to (header),
 300                                          tny_header_get_subject (header));
 301 }
 302
 303 static gchar *
 304 modest_formatter_wrapper_quote (ModestFormatter *self, const gchar *text, TnyHeader *header)
 305 {
 306         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 307
 308         /* TODO: get 80 from the configuration */
 309         return modest_text_utils_quote (text,
 310                                         priv->content_type,
 311                                         tny_header_get_from (header),
 312                                         tny_header_get_date_sent (header),
 313                                         80);
 314 }