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 #include <modest-runtime.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, TnyMimePart *body,  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
  77         gtk_text_buffer_get_bounds (buf, &start, &end);
  78         text = gtk_text_buffer_get_text (buf, &start, &end, FALSE);
  79         g_object_unref (G_OBJECT(buf));
  80
  81         /* Convert to desired content type if needed */
  82         priv = MODEST_FORMATTER_GET_PRIVATE (self);
  83
  84         if (strcmp (tny_mime_part_get_content_type (body), priv->content_type) == 0) {
  85                 if (!strcmp (priv->content_type, "text/html"))
  86                         converted_text = modest_text_utils_convert_to_html  (text);
  87                 else
  88                         converted_text = g_strdup (text);
  89
  90                 g_free (text);
  91                 text = converted_text;
  92         }
  93         return text;
  94 }
  95
  96 static void
  97 construct_from_text (TnyMimePart *part,
  98                      const gchar *text,
  99                      const gchar *content_type)
 100 {
 101         TnyStream *text_body_stream;
 102
 103         /* Create the stream */
 104         text_body_stream = TNY_STREAM (tny_camel_stream_new
 105                                        (camel_stream_mem_new_with_buffer
 106                                         (text, strlen(text))));
 107
 108         /* Construct MIME part */
 109         tny_stream_reset (text_body_stream);
 110         tny_mime_part_construct_from_stream (part, text_body_stream, content_type);
 111         tny_stream_reset (text_body_stream);
 112
 113         /* Clean */
 114         g_object_unref (G_OBJECT (text_body_stream));
 115 }
 116
 117 static TnyMsg *
 118 modest_formatter_do (ModestFormatter *self, TnyMimePart *body, TnyHeader *header, FormatterFunc func)
 119 {
 120         TnyMsg *new_msg = NULL;
 121         gchar *body_text = NULL, *txt = NULL;
 122         ModestFormatterPrivate *priv;
 123
 124         g_return_val_if_fail (self, NULL);
 125         g_return_val_if_fail (header, NULL);
 126         g_return_val_if_fail (func, NULL);
 127
 128         /* Build new part */
 129         new_msg = tny_platform_factory_new_msg (modest_runtime_get_platform_factory());
 130
 131         if (body)
 132                 body_text = extract_text (self, body);
 133         else
 134                 body_text = g_strdup ("");
 135
 136         txt = (gchar *) func (self, (const gchar*) body_text, header);
 137         priv = MODEST_FORMATTER_GET_PRIVATE (self);
 138         construct_from_text (TNY_MIME_PART (new_msg), (const gchar*) txt, priv->content_type);
 139
 140         /* Clean */
 141         g_free (body_text);
 142         g_free (txt);
 143
 144         return new_msg;
 145 }
 146
 147 TnyMsg *
 148 modest_formatter_cite (ModestFormatter *self, TnyMimePart *body, TnyHeader *header)
 149 {
 150         return modest_formatter_do (self, body, header, modest_formatter_wrapper_cite);
 151 }
 152
 153 TnyMsg *
 154 modest_formatter_quote (ModestFormatter *self, TnyMimePart *body, TnyHeader *header)
 155 {
 156         return modest_formatter_do (self, body, header, modest_formatter_wrapper_quote);
 157 }
 158
 159 TnyMsg *
 160 modest_formatter_inline (ModestFormatter *self, TnyMimePart *body, TnyHeader *header)
 161 {
 162         return modest_formatter_do (self, body, header, modest_formatter_wrapper_inline);
 163 }
 164
 165 TnyMsg *
 166 modest_formatter_attach (ModestFormatter *self, TnyMimePart *body, TnyHeader *header)
 167 {
 168         TnyMsg *new_msg = NULL;
 169         gchar *attach_text = NULL;
 170         const gchar *subject;
 171         TnyMimePart *body_part = NULL, *attach_part = NULL;
 172         ModestFormatterPrivate *priv;
 173         TnyPlatformFactory *fact;
 174
 175         fact = modest_runtime_get_platform_factory ();
 176         /* Build new part */
 177         new_msg     = tny_platform_factory_new_msg (fact);
 178         body_part   = tny_platform_factory_new_mime_part (fact);
 179         attach_part = tny_platform_factory_new_mime_part (fact);
 180
 181         /* Create the two parts */
 182         priv = MODEST_FORMATTER_GET_PRIVATE (self);
 183         attach_text = extract_text (self, body);
 184         construct_from_text (body_part, "", priv->content_type);
 185         construct_from_text (attach_part, (const gchar*) attach_text, priv->content_type);
 186         subject = tny_header_get_subject (header);
 187         tny_mime_part_set_filename (attach_part, subject ? subject : _("No subject"));
 188
 189         /* Add parts */
 190         tny_mime_part_add_part (TNY_MIME_PART (new_msg), body_part);
 191         tny_mime_part_add_part (TNY_MIME_PART (new_msg), attach_part);
 192
 193         /* Clean */
 194         g_free (attach_text);
 195
 196         return new_msg;
 197 }
 198
 199 ModestFormatter*
 200 modest_formatter_new (const gchar *content_type)
 201 {
 202         ModestFormatter *formatter;
 203         ModestFormatterPrivate *priv;
 204
 205         formatter = g_object_new (MODEST_TYPE_FORMATTER, NULL);
 206         priv = MODEST_FORMATTER_GET_PRIVATE (formatter);
 207         priv->content_type = g_strdup (content_type);
 208
 209         return formatter;
 210 }
 211
 212 static void
 213 modest_formatter_instance_init (GTypeInstance *instance, gpointer g_class)
 214 {
 215         ModestFormatter *self = (ModestFormatter *)instance;
 216         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 217
 218         priv->content_type = NULL;
 219 }
 220
 221 static void
 222 modest_formatter_finalize (GObject *object)
 223 {
 224         ModestFormatter *self = (ModestFormatter *)object;
 225         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 226
 227         if (priv->content_type)
 228                 g_free (priv->content_type);
 229
 230         (*parent_class->finalize) (object);
 231 }
 232
 233 static void
 234 modest_formatter_class_init (ModestFormatterClass *class)
 235 {
 236         GObjectClass *object_class;
 237
 238         parent_class = g_type_class_peek_parent (class);
 239         object_class = (GObjectClass*) class;
 240         object_class->finalize = modest_formatter_finalize;
 241
 242         g_type_class_add_private (object_class, sizeof (ModestFormatterPrivate));
 243 }
 244
 245 GType
 246 modest_formatter_get_type (void)
 247 {
 248         static GType type = 0;
 249
 250         if (G_UNLIKELY(type == 0))
 251         {
 252                 static const GTypeInfo info =
 253                 {
 254                   sizeof (ModestFormatterClass),
 255                   NULL,   /* base_init */
 256                   NULL,   /* base_finalize */
 257                   (GClassInitFunc) modest_formatter_class_init,   /* class_init */
 258                   NULL,   /* class_finalize */
 259                   NULL,   /* class_data */
 260                   sizeof (ModestFormatter),
 261                   0,      /* n_preallocs */
 262                   modest_formatter_instance_init    /* instance_init */
 263                 };
 264
 265                 type = g_type_register_static (G_TYPE_OBJECT,
 266                         "ModestFormatter",
 267                         &info, 0);
 268         }
 269
 270         return type;
 271 }
 272
 273 /****************/
 274 static gchar *
 275 modest_formatter_wrapper_cite (ModestFormatter *self, const gchar *text, TnyHeader *header)
 276 {
 277         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 278
 279         return modest_text_utils_cite (text,
 280                                        priv->content_type,
 281                                        tny_header_get_from (header),
 282                                        tny_header_get_date_sent (header));
 283 }
 284
 285 static gchar *
 286 modest_formatter_wrapper_inline (ModestFormatter *self, const gchar *text, TnyHeader *header)
 287 {
 288         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 289
 290         return modest_text_utils_inline (text,
 291                                          priv->content_type,
 292                                          tny_header_get_from (header),
 293                                          tny_header_get_date_sent (header),
 294                                          tny_header_get_to (header),
 295                                          tny_header_get_subject (header));
 296 }
 297
 298 static gchar *
 299 modest_formatter_wrapper_quote (ModestFormatter *self, const gchar *text, TnyHeader *header)
 300 {
 301         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 302
 303         /* TODO: get 80 from the configuration */
 304         return modest_text_utils_quote (text,
 305                                         priv->content_type,
 306                                         tny_header_get_from (header),
 307                                         tny_header_get_date_sent (header),
 308                                         80);
 309 }