git.maemo.org Git - modest/blob - src/widgets/modest-webkit-mime-part-view.c

   1 /* Copyright (c) 2006, 2007, 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 <config.h>
  31 #include <widgets/modest-webkit-mime-part-view.h>
  32 #include <string.h>
  33 #include <webkit/webkit.h>
  34 #include <tny-stream.h>
  35 #include <tny-mime-part-view.h>
  36 #include "modest-tny-mime-part.h"
  37 #include <modest-stream-text-to-html.h>
  38 #include <modest-text-utils.h>
  39 #include <modest-conf.h>
  40 #include <modest-runtime.h>
  41 #include <widgets/modest-mime-part-view.h>
  42 #include <widgets/modest-zoomable.h>
  43 #include <libgnomevfs/gnome-vfs.h>
  44 #include <gdk/gdkkeysyms.h>
  45 #include <modest-ui-constants.h>
  46 #include <modest-tny-stream-webkit.h>
  47
  48 /* gobject structure methods */
  49 static void    modest_webkit_mime_part_view_class_init (ModestWebkitMimePartViewClass *klass);
  50 static void    tny_mime_part_view_init                  (gpointer g, gpointer iface_data);
  51 static void    modest_mime_part_view_init               (gpointer g, gpointer iface_data);
  52 static void    modest_zoomable_init                     (gpointer g, gpointer iface_data);
  53 static void    modest_isearch_view_init                 (gpointer g, gpointer iface_data);
  54 static void    modest_webkit_mime_part_view_init       (ModestWebkitMimePartView *self);
  55 static void    modest_webkit_mime_part_view_finalize   (GObject *self);
  56 static void    modest_webkit_mime_part_view_dispose    (GObject *self);
  57
  58 /* Webkit signal handlers */
  59 static void      on_notify_style  (GObject *obj, GParamSpec *spec, gpointer userdata);
  60 static gboolean  update_style     (ModestWebkitMimePartView *self);
  61 /* TnyMimePartView implementation */
  62 static void modest_webkit_mime_part_view_clear (TnyMimePartView *self);
  63 static void modest_webkit_mime_part_view_clear_default (TnyMimePartView *self);
  64 static void modest_webkit_mime_part_view_set_part (TnyMimePartView *self, TnyMimePart *part);
  65 static void modest_webkit_mime_part_view_set_part_default (TnyMimePartView *self, TnyMimePart *part);
  66 static TnyMimePart* modest_webkit_mime_part_view_get_part (TnyMimePartView *self);
  67 static TnyMimePart* modest_webkit_mime_part_view_get_part_default (TnyMimePartView *self);
  68 /* ModestMimePartView implementation */
  69 static gboolean modest_webkit_mime_part_view_is_empty (ModestMimePartView *self);
  70 static gboolean modest_webkit_mime_part_view_is_empty_default (ModestMimePartView *self);
  71 static gboolean modest_webkit_mime_part_view_get_view_images (ModestMimePartView *self);
  72 static gboolean modest_webkit_mime_part_view_get_view_images_default (ModestMimePartView *self);
  73 static void     modest_webkit_mime_part_view_set_view_images (ModestMimePartView *self, gboolean view_images);
  74 static void     modest_webkit_mime_part_view_set_view_images_default (ModestMimePartView *self, gboolean view_images);
  75 static gboolean modest_webkit_mime_part_view_has_external_images (ModestMimePartView *self);
  76 static gboolean modest_webkit_mime_part_view_has_external_images_default (ModestMimePartView *self);
  77 /* ModestZoomable implementation */
  78 static gdouble modest_webkit_mime_part_view_get_zoom (ModestZoomable *self);
  79 static void modest_webkit_mime_part_view_set_zoom (ModestZoomable *self, gdouble value);
  80 static gboolean modest_webkit_mime_part_view_zoom_minus (ModestZoomable *self);
  81 static gboolean modest_webkit_mime_part_view_zoom_plus (ModestZoomable *self);
  82 static gdouble modest_webkit_mime_part_view_get_zoom_default (ModestZoomable *self);
  83 static void modest_webkit_mime_part_view_set_zoom_default (ModestZoomable *self, gdouble value);
  84 static gboolean modest_webkit_mime_part_view_zoom_minus_default (ModestZoomable *self);
  85 static gboolean modest_webkit_mime_part_view_zoom_plus_default (ModestZoomable *self);
  86 /* ModestISearchView implementation */
  87 static gboolean modest_webkit_mime_part_view_search                    (ModestISearchView *self, const gchar *string);
  88 static gboolean modest_webkit_mime_part_view_search_next               (ModestISearchView *self);
  89 static gboolean modest_webkit_mime_part_view_get_selection_area        (ModestISearchView *self, gint *x, gint *y,
  90                                                                          gint *width, gint *height);
  91 static gboolean modest_webkit_mime_part_view_search_default            (ModestISearchView *self, const gchar *string);
  92 static gboolean modest_webkit_mime_part_view_search_next_default       (ModestISearchView *self);
  93 static gboolean modest_webkit_mime_part_view_get_selection_area_default (ModestISearchView *self, gint *x, gint *y,
  94                                                                           gint *width, gint *height);
  95
  96
  97 /* internal api */
  98 static TnyMimePart  *get_part   (ModestWebkitMimePartView *self);
  99 static void          set_html_part   (ModestWebkitMimePartView *self, TnyMimePart *part, const gchar *encoding);
 100 static void          set_text_part   (ModestWebkitMimePartView *self, TnyMimePart *part);
 101 static void          set_empty_part  (ModestWebkitMimePartView *self);
 102 static void          set_part   (ModestWebkitMimePartView *self, TnyMimePart *part);
 103 static gboolean      is_empty   (ModestWebkitMimePartView *self);
 104 static gboolean      get_view_images   (ModestWebkitMimePartView *self);
 105 static void          set_view_images   (ModestWebkitMimePartView *self, gboolean view_images);
 106 static gboolean      has_external_images   (ModestWebkitMimePartView *self);
 107 static void          set_zoom   (ModestWebkitMimePartView *self, gdouble zoom);
 108 static gdouble       get_zoom   (ModestWebkitMimePartView *self);
 109 static gboolean      search             (ModestWebkitMimePartView *self, const gchar *string);
 110 static gboolean      search_next        (ModestWebkitMimePartView *self);
 111 static gboolean      get_selection_area (ModestWebkitMimePartView *self, gint *x, gint *y,
 112                                          gint *width, gint *height);
 113
 114 typedef struct _ModestWebkitMimePartViewPrivate ModestWebkitMimePartViewPrivate;
 115 struct _ModestWebkitMimePartViewPrivate {
 116         TnyMimePart *part;
 117         gdouble current_zoom;
 118         gboolean view_images;
 119         gboolean has_external_images;
 120         GSList *sighandlers;
 121 };
 122
 123 #define MODEST_WEBKIT_MIME_PART_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
 124                                                                                        MODEST_TYPE_WEBKIT_MIME_PART_VIEW, \
 125                                                                                        ModestWebkitMimePartViewPrivate))
 126
 127 enum {
 128         STOP_STREAMS_SIGNAL,
 129         LIMIT_ERROR_SIGNAL,
 130         LAST_SIGNAL
 131 };
 132
 133 static WebKitWebViewClass *parent_class = NULL;
 134
 135 static guint signals[LAST_SIGNAL] = {0};
 136
 137 GtkWidget *
 138 modest_webkit_mime_part_view_new ()
 139 {
 140         return g_object_new (MODEST_TYPE_WEBKIT_MIME_PART_VIEW, NULL);
 141 }
 142
 143 /* GOBJECT IMPLEMENTATION */
 144 GType
 145 modest_webkit_mime_part_view_get_type (void)
 146 {
 147         static GType my_type = 0;
 148         if (!my_type) {
 149                 static const GTypeInfo my_info = {
 150                         sizeof(ModestWebkitMimePartViewClass),
 151                         NULL,           /* base init */
 152                         NULL,           /* base finalize */
 153                         (GClassInitFunc) modest_webkit_mime_part_view_class_init,
 154                         NULL,           /* class finalize */
 155                         NULL,           /* class data */
 156                         sizeof(ModestWebkitMimePartView),
 157                         1,              /* n_preallocs */
 158                         (GInstanceInitFunc) modest_webkit_mime_part_view_init,
 159                         NULL
 160                 };
 161
 162                 static const GInterfaceInfo tny_mime_part_view_info =
 163                 {
 164                   (GInterfaceInitFunc) tny_mime_part_view_init, /* interface_init */
 165                   NULL,         /* interface_finalize */
 166                   NULL          /* interface_data */
 167                 };
 168
 169                 static const GInterfaceInfo modest_mime_part_view_info =
 170                 {
 171                   (GInterfaceInitFunc) modest_mime_part_view_init, /* interface_init */
 172                   NULL,         /* interface_finalize */
 173                   NULL          /* interface_data */
 174                 };
 175
 176                 static const GInterfaceInfo modest_zoomable_info =
 177                 {
 178                   (GInterfaceInitFunc) modest_zoomable_init, /* interface_init */
 179                   NULL,         /* interface_finalize */
 180                   NULL          /* interface_data */
 181                 };
 182
 183                 static const GInterfaceInfo modest_isearch_view_info =
 184                 {
 185                   (GInterfaceInitFunc) modest_isearch_view_init, /* interface_init */
 186                   NULL,         /* interface_finalize */
 187                   NULL          /* interface_data */
 188                 };
 189
 190                 my_type = g_type_register_static (WEBKIT_TYPE_WEB_VIEW,
 191                                                   "ModestWebkitMimePartView",
 192                                                   &my_info, 0);
 193
 194                 g_type_add_interface_static (my_type, TNY_TYPE_MIME_PART_VIEW,
 195                         &tny_mime_part_view_info);
 196
 197                 g_type_add_interface_static (my_type, MODEST_TYPE_MIME_PART_VIEW,
 198                         &modest_mime_part_view_info);
 199
 200                 g_type_add_interface_static (my_type, MODEST_TYPE_ZOOMABLE,
 201                         &modest_zoomable_info);
 202                 g_type_add_interface_static (my_type, MODEST_TYPE_ISEARCH_VIEW,
 203                         &modest_isearch_view_info);
 204         }
 205         return my_type;
 206 }
 207
 208 static void
 209 modest_webkit_mime_part_view_class_init (ModestWebkitMimePartViewClass *klass)
 210 {
 211         GObjectClass *gobject_class;
 212         GtkBindingSet *binding_set;
 213
 214         gobject_class = (GObjectClass*) klass;
 215
 216         parent_class            = g_type_class_peek_parent (klass);
 217         gobject_class->dispose = modest_webkit_mime_part_view_dispose;
 218         gobject_class->finalize = modest_webkit_mime_part_view_finalize;
 219
 220         klass->get_part_func = modest_webkit_mime_part_view_get_part_default;
 221         klass->set_part_func = modest_webkit_mime_part_view_set_part_default;
 222         klass->clear_func = modest_webkit_mime_part_view_clear_default;
 223         klass->is_empty_func = modest_webkit_mime_part_view_is_empty_default;
 224         klass->get_view_images_func = modest_webkit_mime_part_view_get_view_images_default;
 225         klass->set_view_images_func = modest_webkit_mime_part_view_set_view_images_default;
 226         klass->has_external_images_func = modest_webkit_mime_part_view_has_external_images_default;
 227         klass->get_zoom_func = modest_webkit_mime_part_view_get_zoom_default;
 228         klass->set_zoom_func = modest_webkit_mime_part_view_set_zoom_default;
 229         klass->zoom_minus_func = modest_webkit_mime_part_view_zoom_minus_default;
 230         klass->zoom_plus_func = modest_webkit_mime_part_view_zoom_plus_default;
 231         klass->search_func = modest_webkit_mime_part_view_search_default;
 232         klass->search_next_func = modest_webkit_mime_part_view_search_next_default;
 233         klass->get_selection_area_func = modest_webkit_mime_part_view_get_selection_area_default;
 234
 235         binding_set = gtk_binding_set_by_class (klass);
 236         gtk_binding_entry_skip (binding_set, GDK_Down, 0);
 237         gtk_binding_entry_skip (binding_set, GDK_Up, 0);
 238         gtk_binding_entry_skip (binding_set, GDK_KP_Up, 0);
 239         gtk_binding_entry_skip (binding_set, GDK_KP_Down, 0);
 240         gtk_binding_entry_skip (binding_set, GDK_Page_Down, 0);
 241         gtk_binding_entry_skip (binding_set, GDK_Page_Up, 0);
 242         gtk_binding_entry_skip (binding_set, GDK_KP_Page_Up, 0);
 243         gtk_binding_entry_skip (binding_set, GDK_KP_Page_Down, 0);
 244         gtk_binding_entry_skip (binding_set, GDK_Home, 0);
 245         gtk_binding_entry_skip (binding_set, GDK_End, 0);
 246         gtk_binding_entry_skip (binding_set, GDK_KP_Home, 0);
 247         gtk_binding_entry_skip (binding_set, GDK_KP_End, 0);
 248
 249         g_type_class_add_private (gobject_class, sizeof(ModestWebkitMimePartViewPrivate));
 250
 251         signals[STOP_STREAMS_SIGNAL] =
 252                 g_signal_new ("stop-streams",
 253                               G_TYPE_FROM_CLASS (gobject_class),
 254                               G_SIGNAL_RUN_FIRST,
 255                               G_STRUCT_OFFSET (ModestWebkitMimePartViewClass,stop_streams),
 256                               NULL, NULL,
 257                               g_cclosure_marshal_VOID__VOID,
 258                               G_TYPE_NONE, 0);
 259
 260         signals[LIMIT_ERROR_SIGNAL] =
 261                 g_signal_new ("limit-error",
 262                               G_TYPE_FROM_CLASS (gobject_class),
 263                               G_SIGNAL_RUN_FIRST,
 264                               G_STRUCT_OFFSET (ModestWebkitMimePartViewClass,limit_error),
 265                               NULL, NULL,
 266                               g_cclosure_marshal_VOID__VOID,
 267                               G_TYPE_NONE, 0);
 268
 269 }
 270
 271 static void
 272 modest_webkit_mime_part_view_init (ModestWebkitMimePartView *self)
 273 {
 274         ModestWebkitMimePartViewPrivate *priv = MODEST_WEBKIT_MIME_PART_VIEW_GET_PRIVATE (self);
 275         GdkColor base;
 276         GdkColor text;
 277
 278         gdk_color_parse ("#fff", &base);
 279         gdk_color_parse ("#000", &text);
 280         gtk_widget_modify_base (GTK_WIDGET (self), GTK_STATE_NORMAL, &base);
 281         gtk_widget_modify_text (GTK_WIDGET (self), GTK_STATE_NORMAL, &text);
 282
 283         priv->sighandlers = NULL;
 284
 285         priv->sighandlers = modest_signal_mgr_connect (priv->sighandlers,
 286                                                        G_OBJECT(self), "notify::style",
 287                                                        G_CALLBACK (on_notify_style), (gpointer) self);
 288
 289         priv->part = NULL;
 290         priv->current_zoom = 1.0;
 291         priv->view_images = FALSE;
 292         priv->has_external_images = FALSE;
 293 }
 294
 295 static void
 296 modest_webkit_mime_part_view_finalize (GObject *obj)
 297 {
 298         ModestWebkitMimePartViewPrivate *priv = MODEST_WEBKIT_MIME_PART_VIEW_GET_PRIVATE (obj);
 299
 300         modest_signal_mgr_disconnect_all_and_destroy (priv->sighandlers);
 301         priv->sighandlers = NULL;
 302
 303         G_OBJECT_CLASS (parent_class)->finalize (obj);
 304 }
 305
 306 static void
 307 modest_webkit_mime_part_view_dispose (GObject *obj)
 308 {
 309         ModestWebkitMimePartViewPrivate *priv = MODEST_WEBKIT_MIME_PART_VIEW_GET_PRIVATE (obj);
 310
 311         g_signal_emit (G_OBJECT (obj), signals[STOP_STREAMS_SIGNAL], 0);
 312
 313         if (priv->part) {
 314                 g_object_unref (priv->part);
 315                 priv->part = NULL;
 316         }
 317
 318         G_OBJECT_CLASS (parent_class)->dispose (obj);
 319 }
 320
 321 /* WEBKIT SIGNALS HANDLERS */
 322
 323 static void
 324 on_notify_style (GObject *obj, GParamSpec *spec, gpointer userdata)
 325 {
 326         if (strcmp ("style", spec->name) == 0) {
 327                 g_idle_add_full (G_PRIORITY_DEFAULT, (GSourceFunc) update_style,
 328                                  g_object_ref (obj), g_object_unref);
 329                 gtk_widget_queue_draw (GTK_WIDGET (obj));
 330         }
 331 }
 332
 333 gboolean
 334 same_color (GdkColor *a, GdkColor *b)
 335 {
 336         return ((a->red == b->red) &&
 337                 (a->green == b->green) &&
 338                 (a->blue == b->blue));
 339 }
 340
 341 static gboolean
 342 update_style (ModestWebkitMimePartView *self)
 343 {
 344         GdkColor base;
 345         GdkColor text;
 346         GtkRcStyle *rc_style;
 347
 348         gdk_threads_enter ();
 349
 350         if (GTK_WIDGET_VISIBLE (self)) {
 351                 rc_style = gtk_widget_get_modifier_style (GTK_WIDGET (self));
 352
 353                 gdk_color_parse ("#fff", &base);
 354                 gdk_color_parse ("#000", &text);
 355
 356                 if (!same_color (&(rc_style->base[GTK_STATE_NORMAL]), &base) &&
 357                     !same_color (&(rc_style->text[GTK_STATE_NORMAL]), &text)) {
 358
 359                         rc_style->base[GTK_STATE_NORMAL] = base;
 360                         rc_style->text[GTK_STATE_NORMAL] = text;
 361                         gtk_widget_modify_style (GTK_WIDGET (self), rc_style);
 362                 }
 363         }
 364
 365         gdk_threads_leave ();
 366
 367         return FALSE;
 368 }
 369
 370
 371 /* INTERNAL API */
 372 static void
 373 decode_to_stream_cb (TnyMimePart *self,
 374                      gboolean cancelled,
 375                      TnyStream *stream,
 376                      GError *err,
 377                      gpointer user_data)
 378 {
 379         ModestWebkitMimePartView *view = (ModestWebkitMimePartView *) user_data;
 380
 381         if (MODEST_IS_STREAM_TEXT_TO_HTML (stream)) {
 382                 if (tny_stream_write (stream, "\n", 1) == -1) {
 383                         g_warning ("failed to write CR in %s", __FUNCTION__);
 384                 }
 385                 if (modest_stream_text_to_html_limit_reached (MODEST_STREAM_TEXT_TO_HTML (stream))) {
 386                         g_signal_emit (G_OBJECT (view), signals[LIMIT_ERROR_SIGNAL], 0);
 387                 }
 388                 tny_stream_reset (stream);
 389         } else {
 390                 if (modest_tny_stream_webkit_limit_reached (MODEST_TNY_STREAM_WEBKIT (stream))) {
 391                         g_signal_emit (G_OBJECT (view), signals[LIMIT_ERROR_SIGNAL], 0);
 392                 }
 393         }
 394         tny_stream_close (stream);
 395 }
 396
 397 static void
 398 set_html_part (ModestWebkitMimePartView *self, TnyMimePart *part, const gchar *encoding)
 399 {
 400         TnyStream *tny_stream;
 401
 402         g_return_if_fail (self);
 403         g_return_if_fail (part);
 404
 405         g_signal_emit (G_OBJECT (self), signals[STOP_STREAMS_SIGNAL], 0);
 406
 407         tny_stream     = TNY_STREAM(modest_tny_stream_webkit_new (WEBKIT_WEB_VIEW (self), "text/html", encoding));
 408         modest_tny_stream_webkit_set_max_size (MODEST_TNY_STREAM_WEBKIT (tny_stream), 128*1024);
 409         tny_stream_reset (tny_stream);
 410
 411         tny_mime_part_decode_to_stream_async (TNY_MIME_PART (part),
 412                                               tny_stream, decode_to_stream_cb,
 413                                               NULL, self);
 414         g_object_unref (tny_stream);
 415 }
 416
 417 static void
 418 set_text_part (ModestWebkitMimePartView *self, TnyMimePart *part)
 419 {
 420         TnyStream* text_to_html_stream, *tny_stream;
 421
 422         g_return_if_fail (self);
 423         g_return_if_fail (part);
 424
 425         g_signal_emit (G_OBJECT (self), signals[STOP_STREAMS_SIGNAL], 0);
 426
 427         tny_stream =  TNY_STREAM(modest_tny_stream_webkit_new (WEBKIT_WEB_VIEW (self), "text/html", "utf-8"));
 428         modest_tny_stream_webkit_set_max_size (MODEST_TNY_STREAM_WEBKIT (tny_stream), 128*1024);
 429         text_to_html_stream = TNY_STREAM (modest_stream_text_to_html_new (tny_stream));
 430         modest_stream_text_to_html_set_linkify_limit (MODEST_STREAM_TEXT_TO_HTML (text_to_html_stream),
 431                                                       64*1024);
 432         modest_stream_text_to_html_set_full_limit (MODEST_STREAM_TEXT_TO_HTML (text_to_html_stream),
 433                                                    128*1024);
 434         modest_stream_text_to_html_set_line_limit (MODEST_STREAM_TEXT_TO_HTML (text_to_html_stream),
 435                                                    1024);
 436
 437         tny_mime_part_decode_to_stream_async (TNY_MIME_PART (part),
 438                                               text_to_html_stream, decode_to_stream_cb,
 439                                               NULL, self);
 440
 441         g_object_unref (G_OBJECT(text_to_html_stream));
 442         g_object_unref (G_OBJECT(tny_stream));
 443 }
 444
 445 static void
 446 set_empty_part (ModestWebkitMimePartView *self)
 447 {
 448         g_return_if_fail (self);
 449
 450         g_signal_emit (G_OBJECT (self), signals[STOP_STREAMS_SIGNAL], 0);
 451         webkit_web_view_load_string (WEBKIT_WEB_VIEW (self), "", "text/plain", "utf-8", NULL);
 452 }
 453
 454 static void
 455 set_part (ModestWebkitMimePartView *self, TnyMimePart *part)
 456 {
 457         ModestWebkitMimePartViewPrivate *priv;
 458         gchar *header_content_type, *header_content_type_lower;
 459         const gchar *tmp;
 460         gchar *charset = NULL;
 461
 462         g_return_if_fail (self);
 463
 464         priv = MODEST_WEBKIT_MIME_PART_VIEW_GET_PRIVATE(self);
 465         priv->has_external_images = FALSE;
 466
 467         if (part != priv->part) {
 468                 if (priv->part)
 469                         g_object_unref (G_OBJECT(priv->part));
 470                 if (part)
 471                         g_object_ref   (G_OBJECT(part));
 472                 priv->part = part;
 473         }
 474
 475         if (!part) {
 476                 set_empty_part (self);
 477                 return;
 478         }
 479
 480         header_content_type = modest_tny_mime_part_get_header_value (part, "Content-Type");
 481         if (header_content_type) {
 482                 header_content_type = g_strstrip (header_content_type);
 483                 header_content_type_lower = g_ascii_strdown (header_content_type, -1);
 484         } else {
 485                 header_content_type_lower = NULL;
 486         }
 487
 488         if (header_content_type_lower) {
 489                 tmp = strstr (header_content_type_lower, "charset=");
 490                 if (tmp) {
 491                         const gchar *tmp2;
 492                         tmp = tmp + strlen ("charset=");
 493
 494                         tmp2 = strstr (tmp, ";");
 495                         if (tmp2) {
 496                                 charset = g_strndup (tmp, tmp2-tmp);
 497                         } else {
 498                                 charset = g_strdup (tmp);
 499                         }
 500                 }
 501         }
 502
 503         if (tny_mime_part_content_type_is (part, "text/html")) {
 504                 set_html_part (self, part, charset);
 505         } else {
 506                 if (tny_mime_part_content_type_is (part, "message/rfc822")) {
 507                         if (header_content_type) {
 508                                 if (g_str_has_prefix (header_content_type_lower, "text/html"))
 509                                         set_html_part (self, part, charset);
 510                                 else
 511                                         set_text_part (self, part);
 512
 513                         } else {
 514                                 set_text_part (self, part);
 515                         }
 516                 } else {
 517                         set_text_part (self, part);
 518                 }
 519         }
 520         g_free (header_content_type_lower);
 521         g_free (header_content_type);
 522
 523 }
 524
 525 static TnyMimePart*
 526 get_part (ModestWebkitMimePartView *self)
 527 {
 528         TnyMimePart *part;
 529
 530         g_return_val_if_fail (MODEST_IS_WEBKIT_MIME_PART_VIEW (self), NULL);
 531
 532         part = MODEST_WEBKIT_MIME_PART_VIEW_GET_PRIVATE(self)->part;
 533
 534         if (part)
 535                 g_object_ref (part);
 536
 537         return part;
 538 }
 539
 540 static gboolean
 541 is_empty   (ModestWebkitMimePartView *self)
 542 {
 543         return FALSE;
 544 }
 545
 546 static gboolean
 547 get_view_images   (ModestWebkitMimePartView *self)
 548 {
 549         ModestWebkitMimePartViewPrivate *priv;
 550
 551         g_return_val_if_fail (MODEST_IS_WEBKIT_MIME_PART_VIEW (self), FALSE);
 552
 553         priv = MODEST_WEBKIT_MIME_PART_VIEW_GET_PRIVATE (self);
 554         return priv->view_images;
 555 }
 556
 557 static void
 558 set_view_images   (ModestWebkitMimePartView *self, gboolean view_images)
 559 {
 560         ModestWebkitMimePartViewPrivate *priv;
 561
 562         g_return_if_fail (MODEST_IS_WEBKIT_MIME_PART_VIEW (self));
 563
 564         priv = MODEST_WEBKIT_MIME_PART_VIEW_GET_PRIVATE (self);
 565         priv->view_images = view_images;
 566 }
 567
 568 static gboolean
 569 has_external_images   (ModestWebkitMimePartView *self)
 570 {
 571         ModestWebkitMimePartViewPrivate *priv;
 572
 573         g_return_val_if_fail (MODEST_IS_WEBKIT_MIME_PART_VIEW (self), FALSE);
 574
 575         priv = MODEST_WEBKIT_MIME_PART_VIEW_GET_PRIVATE (self);
 576         return priv->has_external_images;
 577 }
 578
 579 static void
 580 set_zoom (ModestWebkitMimePartView *self, gdouble zoom)
 581 {
 582         ModestWebkitMimePartViewPrivate *priv;
 583
 584         g_return_if_fail (MODEST_IS_WEBKIT_MIME_PART_VIEW (self));
 585
 586         priv = MODEST_WEBKIT_MIME_PART_VIEW_GET_PRIVATE (self);
 587         priv->current_zoom = zoom;
 588
 589         gtk_widget_queue_resize (GTK_WIDGET (self));
 590 }
 591
 592 static gdouble
 593 get_zoom (ModestWebkitMimePartView *self)
 594 {
 595         ModestWebkitMimePartViewPrivate *priv;
 596
 597         g_return_val_if_fail (MODEST_IS_WEBKIT_MIME_PART_VIEW (self), 1.0);
 598
 599         priv = MODEST_WEBKIT_MIME_PART_VIEW_GET_PRIVATE (self);
 600
 601         return priv->current_zoom;
 602 }
 603
 604 static gboolean
 605 search (ModestWebkitMimePartView *self,
 606         const gchar *string)
 607 {
 608         return FALSE;
 609 }
 610
 611 static gboolean
 612 search_next (ModestWebkitMimePartView *self)
 613 {
 614         return FALSE;
 615 }
 616
 617 static gboolean
 618 get_selection_area (ModestWebkitMimePartView *self,
 619                     gint *x, gint *y,
 620                     gint *width, gint *height)
 621 {
 622         return FALSE;
 623 }
 624
 625
 626 /* TNY MIME PART IMPLEMENTATION */
 627
 628 static void
 629 tny_mime_part_view_init (gpointer g, gpointer iface_data)
 630 {
 631         TnyMimePartViewIface *klass = (TnyMimePartViewIface *)g;
 632
 633         klass->get_part = modest_webkit_mime_part_view_get_part;
 634         klass->set_part = modest_webkit_mime_part_view_set_part;
 635         klass->clear = modest_webkit_mime_part_view_clear;
 636
 637         return;
 638 }
 639
 640 static TnyMimePart*
 641 modest_webkit_mime_part_view_get_part (TnyMimePartView *self)
 642 {
 643         return MODEST_WEBKIT_MIME_PART_VIEW_GET_CLASS (self)->get_part_func (self);
 644 }
 645
 646
 647 static TnyMimePart*
 648 modest_webkit_mime_part_view_get_part_default (TnyMimePartView *self)
 649 {
 650         return TNY_MIME_PART (get_part (MODEST_WEBKIT_MIME_PART_VIEW (self)));
 651 }
 652
 653 static void
 654 modest_webkit_mime_part_view_set_part (TnyMimePartView *self,
 655                                         TnyMimePart *part)
 656 {
 657         MODEST_WEBKIT_MIME_PART_VIEW_GET_CLASS (self)->set_part_func (self, part);
 658 }
 659
 660 static void
 661 modest_webkit_mime_part_view_set_part_default (TnyMimePartView *self,
 662                                                 TnyMimePart *part)
 663 {
 664         g_return_if_fail ((part == NULL) || TNY_IS_MIME_PART (part));
 665
 666         set_part (MODEST_WEBKIT_MIME_PART_VIEW (self), part);
 667 }
 668
 669 static void
 670 modest_webkit_mime_part_view_clear (TnyMimePartView *self)
 671 {
 672         MODEST_WEBKIT_MIME_PART_VIEW_GET_CLASS (self)->clear_func (self);
 673 }
 674
 675 static void
 676 modest_webkit_mime_part_view_clear_default (TnyMimePartView *self)
 677 {
 678         set_part (MODEST_WEBKIT_MIME_PART_VIEW (self), NULL);
 679 }
 680
 681 /* MODEST MIME PART VIEW IMPLEMENTATION */
 682
 683 static void
 684 modest_mime_part_view_init (gpointer g, gpointer iface_data)
 685 {
 686         ModestMimePartViewIface *klass = (ModestMimePartViewIface *)g;
 687
 688         klass->is_empty_func = modest_webkit_mime_part_view_is_empty;
 689         klass->get_view_images_func = modest_webkit_mime_part_view_get_view_images;
 690         klass->set_view_images_func = modest_webkit_mime_part_view_set_view_images;
 691         klass->has_external_images_func = modest_webkit_mime_part_view_has_external_images;
 692
 693         return;
 694 }
 695
 696 static gboolean
 697 modest_webkit_mime_part_view_is_empty (ModestMimePartView *self)
 698 {
 699         return MODEST_WEBKIT_MIME_PART_VIEW_GET_CLASS (self)->is_empty_func (self);
 700 }
 701
 702 static gboolean
 703 modest_webkit_mime_part_view_get_view_images (ModestMimePartView *self)
 704 {
 705         return MODEST_WEBKIT_MIME_PART_VIEW_GET_CLASS (self)->get_view_images_func (self);
 706 }
 707
 708 static void
 709 modest_webkit_mime_part_view_set_view_images (ModestMimePartView *self, gboolean view_images)
 710 {
 711         MODEST_WEBKIT_MIME_PART_VIEW_GET_CLASS (self)->set_view_images_func (self, view_images);
 712 }
 713
 714 static gboolean
 715 modest_webkit_mime_part_view_has_external_images (ModestMimePartView *self)
 716 {
 717         return MODEST_WEBKIT_MIME_PART_VIEW_GET_CLASS (self)->has_external_images_func (self);
 718 }
 719
 720 static gboolean
 721 modest_webkit_mime_part_view_is_empty_default (ModestMimePartView *self)
 722 {
 723         return is_empty (MODEST_WEBKIT_MIME_PART_VIEW (self));
 724 }
 725
 726 static gboolean
 727 modest_webkit_mime_part_view_get_view_images_default (ModestMimePartView *self)
 728 {
 729         return get_view_images (MODEST_WEBKIT_MIME_PART_VIEW (self));
 730 }
 731
 732 static void
 733 modest_webkit_mime_part_view_set_view_images_default (ModestMimePartView *self, gboolean view_images)
 734 {
 735         set_view_images (MODEST_WEBKIT_MIME_PART_VIEW (self), view_images);
 736 }
 737
 738 static gboolean
 739 modest_webkit_mime_part_view_has_external_images_default (ModestMimePartView *self)
 740 {
 741         return has_external_images (MODEST_WEBKIT_MIME_PART_VIEW (self));
 742 }
 743
 744
 745 /* MODEST ZOOMABLE IMPLEMENTATION */
 746 static void
 747 modest_zoomable_init (gpointer g, gpointer iface_data)
 748 {
 749         ModestZoomableIface *klass = (ModestZoomableIface *)g;
 750
 751         klass->get_zoom_func = modest_webkit_mime_part_view_get_zoom;
 752         klass->set_zoom_func = modest_webkit_mime_part_view_set_zoom;
 753         klass->zoom_minus_func = modest_webkit_mime_part_view_zoom_minus;
 754         klass->zoom_plus_func = modest_webkit_mime_part_view_zoom_plus;
 755
 756         return;
 757 }
 758
 759 static gdouble
 760 modest_webkit_mime_part_view_get_zoom (ModestZoomable *self)
 761 {
 762         return MODEST_WEBKIT_MIME_PART_VIEW_GET_CLASS (self)->get_zoom_func (self);
 763 }
 764
 765 static gdouble
 766 modest_webkit_mime_part_view_get_zoom_default (ModestZoomable *self)
 767 {
 768         return get_zoom (MODEST_WEBKIT_MIME_PART_VIEW (self));
 769 }
 770
 771 static void
 772 modest_webkit_mime_part_view_set_zoom (ModestZoomable *self, gdouble value)
 773 {
 774         MODEST_WEBKIT_MIME_PART_VIEW_GET_CLASS (self)->set_zoom_func (self, value);
 775 }
 776
 777 static void
 778 modest_webkit_mime_part_view_set_zoom_default (ModestZoomable *self, gdouble value)
 779 {
 780         set_zoom (MODEST_WEBKIT_MIME_PART_VIEW (self), value);
 781 }
 782
 783 static gboolean
 784 modest_webkit_mime_part_view_zoom_minus (ModestZoomable *self)
 785 {
 786         return MODEST_WEBKIT_MIME_PART_VIEW_GET_CLASS (self)->zoom_minus_func (self);
 787 }
 788
 789 static gboolean
 790 modest_webkit_mime_part_view_zoom_minus_default (ModestZoomable *self)
 791 {
 792         /* operation not supported in ModestWebkitMimePartView */
 793         return FALSE;
 794 }
 795
 796 static gboolean
 797 modest_webkit_mime_part_view_zoom_plus (ModestZoomable *self)
 798 {
 799         return MODEST_WEBKIT_MIME_PART_VIEW_GET_CLASS (self)->zoom_plus_func (self);
 800 }
 801
 802 static gboolean
 803 modest_webkit_mime_part_view_zoom_plus_default (ModestZoomable *self)
 804 {
 805         /* operation not supported in ModestWebkitMimePartView */
 806         return FALSE;
 807 }
 808
 809 /* ISEARCH VIEW IMPLEMENTATION */
 810 static void
 811 modest_isearch_view_init (gpointer g, gpointer iface_data)
 812 {
 813         ModestISearchViewIface *klass = (ModestISearchViewIface *)g;
 814
 815         klass->search_func = modest_webkit_mime_part_view_search;
 816         klass->search_next_func = modest_webkit_mime_part_view_search_next;
 817         klass->get_selection_area_func = modest_webkit_mime_part_view_get_selection_area;
 818
 819         return;
 820 }
 821
 822 static gboolean
 823 modest_webkit_mime_part_view_search (ModestISearchView *self, const gchar *string)
 824 {
 825         return MODEST_WEBKIT_MIME_PART_VIEW_GET_CLASS (self)->search_func (self, string);
 826 }
 827
 828 static gboolean
 829 modest_webkit_mime_part_view_search_default (ModestISearchView *self, const gchar *string)
 830 {
 831         return search (MODEST_WEBKIT_MIME_PART_VIEW (self), string);
 832 }
 833
 834 static gboolean
 835 modest_webkit_mime_part_view_search_next(ModestISearchView *self)
 836 {
 837         return MODEST_WEBKIT_MIME_PART_VIEW_GET_CLASS (self)->search_next_func (self);
 838 }
 839
 840 static gboolean
 841 modest_webkit_mime_part_view_search_next_default (ModestISearchView *self)
 842 {
 843         return search_next (MODEST_WEBKIT_MIME_PART_VIEW (self));
 844 }
 845
 846 static gboolean
 847 modest_webkit_mime_part_view_get_selection_area (ModestISearchView *self, gint *x, gint *y,
 848                                                   gint *width, gint *height)
 849 {
 850         return MODEST_WEBKIT_MIME_PART_VIEW_GET_CLASS (self)->get_selection_area_func (self, x, y, width, height);
 851 }
 852
 853 static gboolean
 854 modest_webkit_mime_part_view_get_selection_area_default (ModestISearchView *self, gint *x, gint *y,
 855                                                           gint *width, gint *height)
 856 {
 857         return get_selection_area (MODEST_WEBKIT_MIME_PART_VIEW (self), x, y, width, height);
 858 }