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 <tny-camel-msg.h>
  37 #include <camel/camel-stream-mem.h>
  38 #include "modest-formatter.h"
  39 #include "modest-text-utils.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
 132         /* Build new part */
 133         new_msg = TNY_MSG (tny_camel_msg_new ());
 134         body_text = extract_text (self, body);
 135         txt = (gchar *) func (self, (const gchar*) body_text, header);
 136         priv = MODEST_FORMATTER_GET_PRIVATE (self);
 137         construct_from_text (TNY_MIME_PART (new_msg), (const gchar*) txt, priv->content_type);
 138
 139         /* Clean */
 140         g_free (body_text);
 141         g_free (txt);
 142
 143         return new_msg;
 144 }
 145
 146 TnyMsg *
 147 modest_formatter_cite (ModestFormatter *self, TnyMimePart *body, TnyHeader *header)
 148 {
 149         return modest_formatter_do (self, body, header, modest_formatter_wrapper_cite);
 150 }
 151
 152 TnyMsg *
 153 modest_formatter_quote (ModestFormatter *self, TnyMimePart *body, TnyHeader *header)
 154 {
 155         return modest_formatter_do (self, body, header, modest_formatter_wrapper_quote);
 156 }
 157
 158 TnyMsg *
 159 modest_formatter_inline (ModestFormatter *self, TnyMimePart *body, TnyHeader *header)
 160 {
 161         return modest_formatter_do (self, body, header, modest_formatter_wrapper_inline);
 162 }
 163
 164 TnyMsg *
 165 modest_formatter_attach (ModestFormatter *self, TnyMimePart *body, TnyHeader *header)
 166 {
 167         TnyMsg *new_msg = NULL;
 168         gchar *attach_text = NULL;
 169         TnyMimePart *body_part = NULL, *attach_part = NULL;
 170         ModestFormatterPrivate *priv;
 171
 172         /* Build new part */
 173         new_msg     = TNY_MSG (tny_camel_msg_new ());
 174         body_part   = TNY_MIME_PART (tny_camel_mime_part_new (camel_mime_part_new()));
 175         attach_part = TNY_MIME_PART (tny_camel_mime_part_new (camel_mime_part_new()));
 176
 177         /* Create the two parts */
 178         priv = MODEST_FORMATTER_GET_PRIVATE (self);
 179         attach_text = extract_text (self, body);
 180         construct_from_text (body_part, "", priv->content_type);
 181         construct_from_text (attach_part, (const gchar*) attach_text, priv->content_type);
 182         tny_mime_part_set_filename (attach_part, tny_header_get_subject (header));
 183
 184         /* Add parts */
 185         tny_mime_part_add_part (TNY_MIME_PART (new_msg), body_part);
 186         tny_mime_part_add_part (TNY_MIME_PART (new_msg), attach_part);
 187
 188         /* Clean */
 189         g_free (attach_text);
 190
 191         return new_msg;
 192 }
 193
 194 ModestFormatter*
 195 modest_formatter_new (const gchar *content_type)
 196 {
 197         ModestFormatter *formatter;
 198         ModestFormatterPrivate *priv;
 199
 200         formatter = g_object_new (MODEST_TYPE_FORMATTER, NULL);
 201         priv = MODEST_FORMATTER_GET_PRIVATE (formatter);
 202         priv->content_type = g_strdup (content_type);
 203
 204         return formatter;
 205 }
 206
 207 static void
 208 modest_formatter_instance_init (GTypeInstance *instance, gpointer g_class)
 209 {
 210         ModestFormatter *self = (ModestFormatter *)instance;
 211         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 212
 213         priv->content_type = NULL;
 214 }
 215
 216 static void
 217 modest_formatter_finalize (GObject *object)
 218 {
 219         ModestFormatter *self = (ModestFormatter *)object;
 220         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 221
 222         if (priv->content_type)
 223                 g_free (priv->content_type);
 224
 225         (*parent_class->finalize) (object);
 226 }
 227
 228 static void
 229 modest_formatter_class_init (ModestFormatterClass *class)
 230 {
 231         GObjectClass *object_class;
 232
 233         parent_class = g_type_class_peek_parent (class);
 234         object_class = (GObjectClass*) class;
 235         object_class->finalize = modest_formatter_finalize;
 236
 237         g_type_class_add_private (object_class, sizeof (ModestFormatterPrivate));
 238 }
 239
 240 GType
 241 modest_formatter_get_type (void)
 242 {
 243         static GType type = 0;
 244
 245         if (G_UNLIKELY(type == 0))
 246         {
 247                 static const GTypeInfo info =
 248                 {
 249                   sizeof (ModestFormatterClass),
 250                   NULL,   /* base_init */
 251                   NULL,   /* base_finalize */
 252                   (GClassInitFunc) modest_formatter_class_init,   /* class_init */
 253                   NULL,   /* class_finalize */
 254                   NULL,   /* class_data */
 255                   sizeof (ModestFormatter),
 256                   0,      /* n_preallocs */
 257                   modest_formatter_instance_init    /* instance_init */
 258                 };
 259
 260                 type = g_type_register_static (G_TYPE_OBJECT,
 261                         "ModestFormatter",
 262                         &info, 0);
 263         }
 264
 265         return type;
 266 }
 267
 268 /****************/
 269 static gchar *
 270 modest_formatter_wrapper_cite (ModestFormatter *self, const gchar *text, TnyHeader *header)
 271 {
 272         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 273
 274         return modest_text_utils_cite (text,
 275                                        priv->content_type,
 276                                        tny_header_get_from (header),
 277                                        tny_header_get_date_sent (header));
 278 }
 279
 280 static gchar *
 281 modest_formatter_wrapper_inline (ModestFormatter *self, const gchar *text, TnyHeader *header)
 282 {
 283         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 284
 285         return modest_text_utils_inline (text,
 286                                          priv->content_type,
 287                                          tny_header_get_from (header),
 288                                          tny_header_get_date_sent (header),
 289                                          tny_header_get_to (header),
 290                                          tny_header_get_subject (header));
 291 }
 292
 293 static gchar *
 294 modest_formatter_wrapper_quote (ModestFormatter *self, const gchar *text, TnyHeader *header)
 295 {
 296         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 297
 298         /* TODO: get 80 from the configuration */
 299         return modest_text_utils_quote (text,
 300                                         priv->content_type,
 301                                         tny_header_get_from (header),
 302                                         tny_header_get_date_sent (header),
 303                                         80);
 304 }