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