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 = 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;
 128         gchar *body_text = NULL, *txt = NULL;
 129         ModestFormatterPrivate *priv;
 130
 131         /* Build new part */
 132         new_msg = TNY_MSG (tny_camel_msg_new ());
 133         body_text = extract_text (self, body);
 134         txt = (gchar *) func (self, (const gchar*) body_text, header);
 135         priv = MODEST_FORMATTER_GET_PRIVATE (self);
 136         construct_from_text (TNY_MIME_PART (new_msg), (const gchar*) txt, priv->content_type);
 137
 138         /* Clean */
 139         g_free (body_text);
 140         g_free (txt);
 141
 142         return new_msg;
 143 }
 144
 145 TnyMsg *
 146 modest_formatter_cite (ModestFormatter *self, TnyMimePart *body, TnyHeader *header)
 147 {
 148         return modest_formatter_do (self, body, header, modest_formatter_wrapper_cite);
 149 }
 150
 151 TnyMsg *
 152 modest_formatter_quote (ModestFormatter *self, TnyMimePart *body, TnyHeader *header)
 153 {
 154         return modest_formatter_do (self, body, header, modest_formatter_wrapper_quote);
 155 }
 156
 157 TnyMsg *
 158 modest_formatter_inline (ModestFormatter *self, TnyMimePart *body, TnyHeader *header)
 159 {
 160         return modest_formatter_do (self, body, header, modest_formatter_wrapper_inline);
 161 }
 162
 163 TnyMsg *
 164 modest_formatter_attach (ModestFormatter *self, TnyMimePart *body, TnyHeader *header)
 165 {
 166         TnyMsg *new_msg = NULL;
 167         gchar *attach_text = NULL;
 168         TnyMimePart *body_part = NULL, *attach_part = NULL;
 169         ModestFormatterPrivate *priv;
 170
 171         /* Build new part */
 172         new_msg     = TNY_MSG (tny_camel_msg_new ());
 173         body_part   = TNY_MIME_PART (tny_camel_mime_part_new (camel_mime_part_new()));
 174         attach_part = TNY_MIME_PART (tny_camel_mime_part_new (camel_mime_part_new()));
 175
 176         /* Create the two parts */
 177         priv = MODEST_FORMATTER_GET_PRIVATE (self);
 178         attach_text = extract_text (self, body);
 179         construct_from_text (body_part, "", priv->content_type);
 180         construct_from_text (attach_part, (const gchar*) attach_text, priv->content_type);
 181         tny_mime_part_set_filename (attach_part, tny_header_get_subject (header));
 182
 183         /* Add parts */
 184         tny_mime_part_add_part (TNY_MIME_PART (new_msg), body_part);
 185         tny_mime_part_add_part (TNY_MIME_PART (new_msg), attach_part);
 186
 187         /* Clean */
 188         g_free (attach_text);
 189
 190         return new_msg;
 191 }
 192
 193 ModestFormatter*
 194 modest_formatter_new (const gchar *content_type)
 195 {
 196         ModestFormatter *formatter;
 197         ModestFormatterPrivate *priv;
 198
 199         formatter = g_object_new (MODEST_TYPE_FORMATTER, NULL);
 200         priv = MODEST_FORMATTER_GET_PRIVATE (formatter);
 201         priv->content_type = g_strdup (content_type);
 202
 203         return formatter;
 204 }
 205
 206 static void
 207 modest_formatter_instance_init (GTypeInstance *instance, gpointer g_class)
 208 {
 209         ModestFormatter *self = (ModestFormatter *)instance;
 210         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 211
 212         priv->content_type = NULL;
 213 }
 214
 215 static void
 216 modest_formatter_finalize (GObject *object)
 217 {
 218         ModestFormatter *self = (ModestFormatter *)object;
 219         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 220
 221         if (priv->content_type)
 222                 g_free (priv->content_type);
 223
 224         (*parent_class->finalize) (object);
 225 }
 226
 227 static void
 228 modest_formatter_class_init (ModestFormatterClass *class)
 229 {
 230         GObjectClass *object_class;
 231
 232         parent_class = g_type_class_peek_parent (class);
 233         object_class = (GObjectClass*) class;
 234         object_class->finalize = modest_formatter_finalize;
 235
 236         g_type_class_add_private (object_class, sizeof (ModestFormatterPrivate));
 237 }
 238
 239 GType
 240 modest_formatter_get_type (void)
 241 {
 242         static GType type = 0;
 243
 244         if (G_UNLIKELY(type == 0))
 245         {
 246                 static const GTypeInfo info =
 247                 {
 248                   sizeof (ModestFormatterClass),
 249                   NULL,   /* base_init */
 250                   NULL,   /* base_finalize */
 251                   (GClassInitFunc) modest_formatter_class_init,   /* class_init */
 252                   NULL,   /* class_finalize */
 253                   NULL,   /* class_data */
 254                   sizeof (ModestFormatter),
 255                   0,      /* n_preallocs */
 256                   modest_formatter_instance_init    /* instance_init */
 257                 };
 258
 259                 type = g_type_register_static (G_TYPE_OBJECT,
 260                         "ModestFormatter",
 261                         &info, 0);
 262         }
 263
 264         return type;
 265 }
 266
 267 /****************/
 268 static gchar *
 269 modest_formatter_wrapper_cite (ModestFormatter *self, const gchar *text, TnyHeader *header)
 270 {
 271         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 272
 273         return modest_text_utils_cite (text,
 274                                        priv->content_type,
 275                                        tny_header_get_from (header),
 276                                        tny_header_get_date_sent (header));
 277 }
 278
 279 static gchar *
 280 modest_formatter_wrapper_inline (ModestFormatter *self, const gchar *text, TnyHeader *header)
 281 {
 282         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 283
 284         return modest_text_utils_inline (text,
 285                                          priv->content_type,
 286                                          tny_header_get_from (header),
 287                                          tny_header_get_date_sent (header),
 288                                          tny_header_get_to (header),
 289                                          tny_header_get_subject (header));
 290 }
 291
 292 static gchar *
 293 modest_formatter_wrapper_quote (ModestFormatter *self, const gchar *text, TnyHeader *header)
 294 {
 295         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 296
 297         /* TODO: get 80 from the configuration */
 298         return modest_text_utils_quote (text,
 299                                         priv->content_type,
 300                                         tny_header_get_from (header),
 301                                         tny_header_get_date_sent (header),
 302                                         80);
 303 }