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