git.maemo.org Git - modest/blob - src/widgets/modest-gtkhtml-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-gtkhtml-mime-part-view.h>
  32 #include <string.h>
  33 #include <gtkhtml/gtkhtml-stream.h>
  34 #include <gtkhtml/gtkhtml-search.h>
  35 #include <tny-stream.h>
  36 #include <tny-mime-part-view.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 <widgets/modest-tny-stream-gtkhtml.h>
  44 #include <libgnomevfs/gnome-vfs.h>
  45
  46 /* gobject structure methods */
  47 static void    modest_gtkhtml_mime_part_view_class_init (ModestGtkhtmlMimePartViewClass *klass);
  48 static void    tny_mime_part_view_init                  (gpointer g, gpointer iface_data);
  49 static void    modest_mime_part_view_init               (gpointer g, gpointer iface_data);
  50 static void    modest_zoomable_init                     (gpointer g, gpointer iface_data);
  51 static void    modest_isearch_view_init                 (gpointer g, gpointer iface_data);
  52 static void    modest_gtkhtml_mime_part_view_init       (ModestGtkhtmlMimePartView *self);
  53 static void    modest_gtkhtml_mime_part_view_finalize   (GObject *self);
  54
  55 /* GtkHTML signal handlers */
  56 static gboolean  on_link_clicked  (GtkWidget *widget, const gchar *uri, ModestGtkhtmlMimePartView *self);
  57 static gboolean  on_url           (GtkWidget *widget, const gchar *uri, ModestGtkhtmlMimePartView *self);
  58 static gboolean  on_url_requested (GtkWidget *widget, const gchar *uri, GtkHTMLStream *stream,
  59                                    ModestGtkhtmlMimePartView *self);
  60 /* TnyMimePartView implementation */
  61 static void modest_gtkhtml_mime_part_view_clear (TnyMimePartView *self);
  62 static void modest_gtkhtml_mime_part_view_clear_default (TnyMimePartView *self);
  63 static void modest_gtkhtml_mime_part_view_set_part (TnyMimePartView *self, TnyMimePart *part);
  64 static void modest_gtkhtml_mime_part_view_set_part_default (TnyMimePartView *self, TnyMimePart *part);
  65 static TnyMimePart* modest_gtkhtml_mime_part_view_get_part (TnyMimePartView *self);
  66 static TnyMimePart* modest_gtkhtml_mime_part_view_get_part_default (TnyMimePartView *self);
  67 /* ModestMimePartView implementation */
  68 static gboolean modest_gtkhtml_mime_part_view_is_empty (ModestMimePartView *self);
  69 static gboolean modest_gtkhtml_mime_part_view_is_empty_default (ModestMimePartView *self);
  70 static gboolean modest_gtkhtml_mime_part_view_get_view_images (ModestMimePartView *self);
  71 static gboolean modest_gtkhtml_mime_part_view_get_view_images_default (ModestMimePartView *self);
  72 static void     modest_gtkhtml_mime_part_view_set_view_images (ModestMimePartView *self, gboolean view_images);
  73 static void     modest_gtkhtml_mime_part_view_set_view_images_default (ModestMimePartView *self, gboolean view_images);
  74 static gboolean modest_gtkhtml_mime_part_view_has_external_images (ModestMimePartView *self);
  75 static gboolean modest_gtkhtml_mime_part_view_has_external_images_default (ModestMimePartView *self);
  76 /* ModestZoomable implementation */
  77 static gdouble modest_gtkhtml_mime_part_view_get_zoom (ModestZoomable *self);
  78 static void modest_gtkhtml_mime_part_view_set_zoom (ModestZoomable *self, gdouble value);
  79 static gboolean modest_gtkhtml_mime_part_view_zoom_minus (ModestZoomable *self);
  80 static gboolean modest_gtkhtml_mime_part_view_zoom_plus (ModestZoomable *self);
  81 static gdouble modest_gtkhtml_mime_part_view_get_zoom_default (ModestZoomable *self);
  82 static void modest_gtkhtml_mime_part_view_set_zoom_default (ModestZoomable *self, gdouble value);
  83 static gboolean modest_gtkhtml_mime_part_view_zoom_minus_default (ModestZoomable *self);
  84 static gboolean modest_gtkhtml_mime_part_view_zoom_plus_default (ModestZoomable *self);
  85 /* ModestISearchView implementation */
  86 static gboolean modest_gtkhtml_mime_part_view_search                    (ModestISearchView *self, const gchar *string);
  87 static gboolean modest_gtkhtml_mime_part_view_search_next               (ModestISearchView *self);
  88 static gboolean modest_gtkhtml_mime_part_view_get_selection_area        (ModestISearchView *self, gint *x, gint *y,
  89                                                                          gint *width, gint *height);
  90 static gboolean modest_gtkhtml_mime_part_view_search_default            (ModestISearchView *self, const gchar *string);
  91 static gboolean modest_gtkhtml_mime_part_view_search_next_default       (ModestISearchView *self);
  92 static gboolean modest_gtkhtml_mime_part_view_get_selection_area_default (ModestISearchView *self, gint *x, gint *y,
  93                                                                           gint *width, gint *height);
  94
  95
  96 /* internal api */
  97 static TnyMimePart  *get_part   (ModestGtkhtmlMimePartView *self);
  98 static void          set_html_part   (ModestGtkhtmlMimePartView *self, TnyMimePart *part);
  99 static void          set_text_part   (ModestGtkhtmlMimePartView *self, TnyMimePart *part);
 100 static void          set_empty_part  (ModestGtkhtmlMimePartView *self);
 101 static void          set_part   (ModestGtkhtmlMimePartView *self, TnyMimePart *part);
 102 static gboolean      is_empty   (ModestGtkhtmlMimePartView *self);
 103 static gboolean      get_view_images   (ModestGtkhtmlMimePartView *self);
 104 static void          set_view_images   (ModestGtkhtmlMimePartView *self, gboolean view_images);
 105 static gboolean      has_external_images   (ModestGtkhtmlMimePartView *self);
 106 static void          set_zoom   (ModestGtkhtmlMimePartView *self, gdouble zoom);
 107 static gdouble       get_zoom   (ModestGtkhtmlMimePartView *self);
 108 static gboolean      has_contents_receiver (gpointer engine, const gchar *data,
 109                                             size_t len, gboolean *has_contents);
 110 static gboolean      search             (ModestGtkhtmlMimePartView *self, const gchar *string);
 111 static gboolean      search_next        (ModestGtkhtmlMimePartView *self);
 112 static gboolean      get_selection_area (ModestGtkhtmlMimePartView *self, gint *x, gint *y,
 113                                          gint *width, gint *height);
 114
 115 typedef struct _ModestGtkhtmlMimePartViewPrivate ModestGtkhtmlMimePartViewPrivate;
 116 struct _ModestGtkhtmlMimePartViewPrivate {
 117         TnyMimePart *part;
 118         gdouble current_zoom;
 119         gboolean view_images;
 120         gboolean has_external_images;
 121 };
 122
 123 #define MODEST_GTKHTML_MIME_PART_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
 124                                                                                        MODEST_TYPE_GTKHTML_MIME_PART_VIEW, \
 125                                                                                        ModestGtkhtmlMimePartViewPrivate))
 126
 127 static GtkHTMLClass *parent_class = NULL;
 128
 129 GtkWidget *
 130 modest_gtkhtml_mime_part_view_new ()
 131 {
 132         return g_object_new (MODEST_TYPE_GTKHTML_MIME_PART_VIEW, NULL);
 133 }
 134
 135 /* GOBJECT IMPLEMENTATION */
 136 GType
 137 modest_gtkhtml_mime_part_view_get_type (void)
 138 {
 139         static GType my_type = 0;
 140         if (!my_type) {
 141                 static const GTypeInfo my_info = {
 142                         sizeof(ModestGtkhtmlMimePartViewClass),
 143                         NULL,           /* base init */
 144                         NULL,           /* base finalize */
 145                         (GClassInitFunc) modest_gtkhtml_mime_part_view_class_init,
 146                         NULL,           /* class finalize */
 147                         NULL,           /* class data */
 148                         sizeof(ModestGtkhtmlMimePartView),
 149                         1,              /* n_preallocs */
 150                         (GInstanceInitFunc) modest_gtkhtml_mime_part_view_init,
 151                         NULL
 152                 };
 153
 154                 static const GInterfaceInfo tny_mime_part_view_info =
 155                 {
 156                   (GInterfaceInitFunc) tny_mime_part_view_init, /* interface_init */
 157                   NULL,         /* interface_finalize */
 158                   NULL          /* interface_data */
 159                 };
 160
 161                 static const GInterfaceInfo modest_mime_part_view_info =
 162                 {
 163                   (GInterfaceInitFunc) modest_mime_part_view_init, /* interface_init */
 164                   NULL,         /* interface_finalize */
 165                   NULL          /* interface_data */
 166                 };
 167
 168                 static const GInterfaceInfo modest_zoomable_info =
 169                 {
 170                   (GInterfaceInitFunc) modest_zoomable_init, /* interface_init */
 171                   NULL,         /* interface_finalize */
 172                   NULL          /* interface_data */
 173                 };
 174
 175                 static const GInterfaceInfo modest_isearch_view_info =
 176                 {
 177                   (GInterfaceInitFunc) modest_isearch_view_init, /* interface_init */
 178                   NULL,         /* interface_finalize */
 179                   NULL          /* interface_data */
 180                 };
 181
 182                 my_type = g_type_register_static (GTK_TYPE_HTML,
 183                                                   "ModestGtkhtmlMimePartView",
 184                                                   &my_info, 0);
 185
 186                 g_type_add_interface_static (my_type, TNY_TYPE_MIME_PART_VIEW,
 187                         &tny_mime_part_view_info);
 188
 189                 g_type_add_interface_static (my_type, MODEST_TYPE_MIME_PART_VIEW,
 190                         &modest_mime_part_view_info);
 191
 192                 g_type_add_interface_static (my_type, MODEST_TYPE_ZOOMABLE,
 193                         &modest_zoomable_info);
 194                 g_type_add_interface_static (my_type, MODEST_TYPE_ISEARCH_VIEW,
 195                         &modest_isearch_view_info);
 196         }
 197         return my_type;
 198 }
 199
 200 static void
 201 modest_gtkhtml_mime_part_view_class_init (ModestGtkhtmlMimePartViewClass *klass)
 202 {
 203         GObjectClass *gobject_class;
 204         gobject_class = (GObjectClass*) klass;
 205
 206         parent_class            = g_type_class_peek_parent (klass);
 207         gobject_class->finalize = modest_gtkhtml_mime_part_view_finalize;
 208
 209         klass->get_part_func = modest_gtkhtml_mime_part_view_get_part_default;
 210         klass->set_part_func = modest_gtkhtml_mime_part_view_set_part_default;
 211         klass->clear_func = modest_gtkhtml_mime_part_view_clear_default;
 212         klass->is_empty_func = modest_gtkhtml_mime_part_view_is_empty_default;
 213         klass->get_view_images_func = modest_gtkhtml_mime_part_view_get_view_images_default;
 214         klass->set_view_images_func = modest_gtkhtml_mime_part_view_set_view_images_default;
 215         klass->has_external_images_func = modest_gtkhtml_mime_part_view_has_external_images_default;
 216         klass->get_zoom_func = modest_gtkhtml_mime_part_view_get_zoom_default;
 217         klass->set_zoom_func = modest_gtkhtml_mime_part_view_set_zoom_default;
 218         klass->zoom_minus_func = modest_gtkhtml_mime_part_view_zoom_minus_default;
 219         klass->zoom_plus_func = modest_gtkhtml_mime_part_view_zoom_plus_default;
 220         klass->search_func = modest_gtkhtml_mime_part_view_search_default;
 221         klass->search_next_func = modest_gtkhtml_mime_part_view_search_next_default;
 222         klass->get_selection_area_func = modest_gtkhtml_mime_part_view_get_selection_area_default;
 223
 224         g_type_class_add_private (gobject_class, sizeof(ModestGtkhtmlMimePartViewPrivate));
 225
 226 }
 227
 228 static void
 229 modest_gtkhtml_mime_part_view_init (ModestGtkhtmlMimePartView *self)
 230 {
 231         ModestGtkhtmlMimePartViewPrivate *priv = MODEST_GTKHTML_MIME_PART_VIEW_GET_PRIVATE (self);
 232
 233         gtk_html_set_editable        (GTK_HTML(self), FALSE);
 234         gtk_html_allow_selection     (GTK_HTML(self), TRUE);
 235         gtk_html_set_caret_mode      (GTK_HTML(self), FALSE);
 236         gtk_html_set_blocking        (GTK_HTML(self), TRUE);
 237         gtk_html_set_images_blocking (GTK_HTML(self), TRUE);
 238
 239         g_signal_connect (G_OBJECT(self), "link_clicked",
 240                           G_CALLBACK(on_link_clicked), self);
 241         g_signal_connect (G_OBJECT(self), "url_requested",
 242                           G_CALLBACK(on_url_requested), self);
 243         g_signal_connect (G_OBJECT(self), "on_url",
 244                           G_CALLBACK(on_url), self);
 245
 246         priv->part = NULL;
 247         priv->current_zoom = 1.0;
 248         priv->view_images = FALSE;
 249         priv->has_external_images = FALSE;
 250 }
 251
 252 static void
 253 modest_gtkhtml_mime_part_view_finalize (GObject *obj)
 254 {
 255         G_OBJECT_CLASS (parent_class)->finalize (obj);
 256 }
 257
 258 /* GTKHTML SIGNALS HANDLERS */
 259
 260 static gboolean
 261 on_link_clicked (GtkWidget *widget, const gchar *uri, ModestGtkhtmlMimePartView *self)
 262 {
 263         gboolean result;
 264         g_return_val_if_fail (MODEST_IS_GTKHTML_MIME_PART_VIEW (self), FALSE);
 265
 266         g_signal_emit_by_name (G_OBJECT (self), "activate-link", uri, &result);
 267         return result;
 268 }
 269
 270 static gboolean
 271 on_url (GtkWidget *widget, const gchar *uri, ModestGtkhtmlMimePartView *self)
 272 {
 273         gboolean result;
 274         g_return_val_if_fail (MODEST_IS_GTKHTML_MIME_PART_VIEW (self), FALSE);
 275
 276         g_signal_emit_by_name (G_OBJECT (self), "link-hover", uri, &result);
 277         return result;
 278 }
 279
 280 typedef struct {
 281         gpointer buffer;
 282         GtkHTML *html;
 283         GtkHTMLStream *stream;
 284 } ImageFetcherInfo;
 285
 286 static gboolean
 287 on_url_requested (GtkWidget *widget, const gchar *uri, GtkHTMLStream *stream,
 288                   ModestGtkhtmlMimePartView *self)
 289 {
 290         gboolean result;
 291         TnyStream *tny_stream;
 292         g_return_val_if_fail (MODEST_IS_GTKHTML_MIME_PART_VIEW (self), FALSE);
 293
 294         if (g_str_has_prefix (uri, "http:")) {
 295                 ModestGtkhtmlMimePartViewPrivate *priv = MODEST_GTKHTML_MIME_PART_VIEW_GET_PRIVATE (self);
 296
 297                 if (!priv->view_images)
 298                         priv->has_external_images = TRUE;
 299         }
 300
 301         tny_stream = TNY_STREAM (modest_tny_stream_gtkhtml_new (stream, GTK_HTML (widget)));
 302         g_signal_emit_by_name (MODEST_MIME_PART_VIEW (self), "fetch-url", uri, tny_stream, &result);
 303         g_object_unref (tny_stream);
 304         return result;
 305 }
 306
 307 /* INTERNAL API */
 308
 309 static void
 310 set_html_part (ModestGtkhtmlMimePartView *self, TnyMimePart *part)
 311 {
 312         GtkHTMLStream *gtkhtml_stream;
 313         TnyStream *tny_stream;
 314
 315         g_return_if_fail (self);
 316         g_return_if_fail (part);
 317
 318         gtkhtml_stream = gtk_html_begin(GTK_HTML(self));
 319
 320         tny_stream     = TNY_STREAM(modest_tny_stream_gtkhtml_new (gtkhtml_stream, GTK_HTML (self)));
 321         tny_stream_reset (tny_stream);
 322
 323         tny_mime_part_decode_to_stream ((TnyMimePart*)part, tny_stream, NULL);
 324         tny_stream_close (tny_stream);
 325         g_object_unref (G_OBJECT(tny_stream));
 326 }
 327
 328 static void
 329 set_text_part (ModestGtkhtmlMimePartView *self, TnyMimePart *part)
 330 {
 331         TnyStream* text_to_html_stream, *tny_stream;
 332         GtkHTMLStream *gtkhtml_stream;
 333
 334         g_return_if_fail (self);
 335         g_return_if_fail (part);
 336
 337         gtkhtml_stream = gtk_html_begin(GTK_HTML(self));
 338         tny_stream =  TNY_STREAM(modest_tny_stream_gtkhtml_new (gtkhtml_stream, GTK_HTML (self)));
 339         text_to_html_stream = TNY_STREAM (modest_stream_text_to_html_new (tny_stream));
 340         modest_stream_text_to_html_set_linkify_limit (MODEST_STREAM_TEXT_TO_HTML (text_to_html_stream), 64*1024);
 341         modest_stream_text_to_html_set_full_limit (MODEST_STREAM_TEXT_TO_HTML (text_to_html_stream), 640*1024);
 342
 343         // FIXME: tinymail
 344         tny_mime_part_decode_to_stream ((TnyMimePart*)part, text_to_html_stream, NULL);
 345         tny_stream_write (text_to_html_stream, "\n", 1);
 346         tny_stream_reset (text_to_html_stream);
 347         tny_stream_close (text_to_html_stream);
 348
 349         g_object_unref (G_OBJECT(text_to_html_stream));
 350         g_object_unref (G_OBJECT(tny_stream));
 351         /* gtk_html_stream_destroy (gtkhtml_stream); */
 352 }
 353
 354 static void
 355 set_empty_part (ModestGtkhtmlMimePartView *self)
 356 {
 357         g_return_if_fail (self);
 358
 359         gtk_html_load_from_string (GTK_HTML(self),
 360                                    "", 1);
 361 }
 362
 363 static void
 364 set_part (ModestGtkhtmlMimePartView *self, TnyMimePart *part)
 365 {
 366         ModestGtkhtmlMimePartViewPrivate *priv;
 367
 368         g_return_if_fail (self);
 369
 370         priv = MODEST_GTKHTML_MIME_PART_VIEW_GET_PRIVATE(self);
 371         priv->has_external_images = FALSE;
 372
 373         if (part != priv->part) {
 374                 if (priv->part)
 375                         g_object_unref (G_OBJECT(priv->part));
 376                 if (part)
 377                         g_object_ref   (G_OBJECT(part));
 378                 priv->part = part;
 379         }
 380
 381         if (!part) {
 382                 set_empty_part (self);
 383                 return;
 384         }
 385
 386         if (tny_mime_part_content_type_is (part, "text/html"))
 387                 set_html_part (self, part);
 388         else
 389                 set_text_part (self, part);
 390
 391 }
 392
 393 static TnyMimePart*
 394 get_part (ModestGtkhtmlMimePartView *self)
 395 {
 396         TnyMimePart *part;
 397
 398         g_return_val_if_fail (MODEST_IS_GTKHTML_MIME_PART_VIEW (self), NULL);
 399
 400         part = MODEST_GTKHTML_MIME_PART_VIEW_GET_PRIVATE(self)->part;
 401
 402         if (part)
 403                 g_object_ref (part);
 404
 405         return part;
 406 }
 407
 408 static gboolean
 409 has_contents_receiver (gpointer engine, const gchar *data,
 410                        size_t len, gboolean *has_contents)
 411 {
 412         if (len > 1 || ((len == 1)&&(data[0]!='\n'))) {
 413                 *has_contents = TRUE;
 414                 return FALSE;
 415         }
 416         return TRUE;
 417 }
 418
 419 static gboolean
 420 is_empty   (ModestGtkhtmlMimePartView *self)
 421 {
 422         /* TODO: Find some gtkhtml API to check whether there is any (visible, non markup)
 423          * text in the message:
 424          */
 425         gboolean has_contents = FALSE;
 426
 427         gtk_html_export (GTK_HTML (self), "text/plain",
 428                          (GtkHTMLSaveReceiverFn) has_contents_receiver, &has_contents);
 429
 430         return !has_contents;
 431 }
 432
 433 static gboolean
 434 get_view_images   (ModestGtkhtmlMimePartView *self)
 435 {
 436         ModestGtkhtmlMimePartViewPrivate *priv;
 437
 438         g_return_val_if_fail (MODEST_IS_GTKHTML_MIME_PART_VIEW (self), FALSE);
 439
 440         priv = MODEST_GTKHTML_MIME_PART_VIEW_GET_PRIVATE (self);
 441         return priv->view_images;
 442 }
 443
 444 static void
 445 set_view_images   (ModestGtkhtmlMimePartView *self, gboolean view_images)
 446 {
 447         ModestGtkhtmlMimePartViewPrivate *priv;
 448
 449         g_return_if_fail (MODEST_IS_GTKHTML_MIME_PART_VIEW (self));
 450
 451         priv = MODEST_GTKHTML_MIME_PART_VIEW_GET_PRIVATE (self);
 452         priv->view_images = view_images;
 453 }
 454
 455 static gboolean
 456 has_external_images   (ModestGtkhtmlMimePartView *self)
 457 {
 458         ModestGtkhtmlMimePartViewPrivate *priv;
 459
 460         g_return_val_if_fail (MODEST_IS_GTKHTML_MIME_PART_VIEW (self), FALSE);
 461
 462         priv = MODEST_GTKHTML_MIME_PART_VIEW_GET_PRIVATE (self);
 463         return priv->has_external_images;
 464 }
 465
 466 static void
 467 set_zoom (ModestGtkhtmlMimePartView *self, gdouble zoom)
 468 {
 469         ModestGtkhtmlMimePartViewPrivate *priv;
 470
 471         g_return_if_fail (MODEST_IS_GTKHTML_MIME_PART_VIEW (self));
 472
 473         priv = MODEST_GTKHTML_MIME_PART_VIEW_GET_PRIVATE (self);
 474         priv->current_zoom = zoom;
 475         gtk_html_set_magnification (GTK_HTML(self), zoom);
 476
 477         gtk_widget_queue_resize (GTK_WIDGET (self));
 478 }
 479
 480 static gdouble
 481 get_zoom (ModestGtkhtmlMimePartView *self)
 482 {
 483         ModestGtkhtmlMimePartViewPrivate *priv;
 484
 485         g_return_val_if_fail (MODEST_IS_GTKHTML_MIME_PART_VIEW (self), 1.0);
 486
 487         priv = MODEST_GTKHTML_MIME_PART_VIEW_GET_PRIVATE (self);
 488
 489         return priv->current_zoom;
 490 }
 491
 492 static gboolean
 493 search (ModestGtkhtmlMimePartView *self,
 494         const gchar *string)
 495 {
 496         return gtk_html_engine_search (GTK_HTML (self),
 497                                        string,
 498                                        FALSE,   /* case sensitive */
 499                                        TRUE,    /* forward */
 500                                        FALSE);  /* regexp */
 501 }
 502
 503 static gboolean
 504 search_next (ModestGtkhtmlMimePartView *self)
 505 {
 506         return gtk_html_engine_search_next (GTK_HTML (self));
 507 }
 508
 509 static gboolean
 510 get_selection_area (ModestGtkhtmlMimePartView *self,
 511                     gint *x, gint *y,
 512                     gint *width, gint *height)
 513 {
 514 #ifdef HAVE_GTK_HTML_GET_SELECTION_AREA
 515         gtk_html_get_selection_area (GTK_HTML (self), x, y, width, height);
 516         return TRUE;
 517 #else
 518         return FALSE;
 519 #endif
 520 }
 521
 522
 523 /* TNY MIME PART IMPLEMENTATION */
 524
 525 static void
 526 tny_mime_part_view_init (gpointer g, gpointer iface_data)
 527 {
 528         TnyMimePartViewIface *klass = (TnyMimePartViewIface *)g;
 529
 530         klass->get_part = modest_gtkhtml_mime_part_view_get_part;
 531         klass->set_part = modest_gtkhtml_mime_part_view_set_part;
 532         klass->clear = modest_gtkhtml_mime_part_view_clear;
 533
 534         return;
 535 }
 536
 537 static TnyMimePart*
 538 modest_gtkhtml_mime_part_view_get_part (TnyMimePartView *self)
 539 {
 540         return MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->get_part_func (self);
 541 }
 542
 543
 544 static TnyMimePart*
 545 modest_gtkhtml_mime_part_view_get_part_default (TnyMimePartView *self)
 546 {
 547         return TNY_MIME_PART (get_part (MODEST_GTKHTML_MIME_PART_VIEW (self)));
 548 }
 549
 550 static void
 551 modest_gtkhtml_mime_part_view_set_part (TnyMimePartView *self,
 552                                         TnyMimePart *part)
 553 {
 554         MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->set_part_func (self, part);
 555 }
 556
 557 static void
 558 modest_gtkhtml_mime_part_view_set_part_default (TnyMimePartView *self,
 559                                                 TnyMimePart *part)
 560 {
 561         g_return_if_fail ((part == NULL) || TNY_IS_MIME_PART (part));
 562
 563         set_part (MODEST_GTKHTML_MIME_PART_VIEW (self), part);
 564 }
 565
 566 static void
 567 modest_gtkhtml_mime_part_view_clear (TnyMimePartView *self)
 568 {
 569         MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->clear_func (self);
 570 }
 571
 572 static void
 573 modest_gtkhtml_mime_part_view_clear_default (TnyMimePartView *self)
 574 {
 575         set_part (MODEST_GTKHTML_MIME_PART_VIEW (self), NULL);
 576 }
 577
 578 /* MODEST MIME PART VIEW IMPLEMENTATION */
 579
 580 static void
 581 modest_mime_part_view_init (gpointer g, gpointer iface_data)
 582 {
 583         ModestMimePartViewIface *klass = (ModestMimePartViewIface *)g;
 584
 585         klass->is_empty_func = modest_gtkhtml_mime_part_view_is_empty;
 586         klass->get_view_images_func = modest_gtkhtml_mime_part_view_get_view_images;
 587         klass->set_view_images_func = modest_gtkhtml_mime_part_view_set_view_images;
 588         klass->has_external_images_func = modest_gtkhtml_mime_part_view_has_external_images;
 589
 590         return;
 591 }
 592
 593 static gboolean
 594 modest_gtkhtml_mime_part_view_is_empty (ModestMimePartView *self)
 595 {
 596         return MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->is_empty_func (self);
 597 }
 598
 599 static gboolean
 600 modest_gtkhtml_mime_part_view_get_view_images (ModestMimePartView *self)
 601 {
 602         return MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->get_view_images_func (self);
 603 }
 604
 605 static void
 606 modest_gtkhtml_mime_part_view_set_view_images (ModestMimePartView *self, gboolean view_images)
 607 {
 608         MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->set_view_images_func (self, view_images);
 609 }
 610
 611 static gboolean
 612 modest_gtkhtml_mime_part_view_has_external_images (ModestMimePartView *self)
 613 {
 614         return MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->has_external_images_func (self);
 615 }
 616
 617 static gboolean
 618 modest_gtkhtml_mime_part_view_is_empty_default (ModestMimePartView *self)
 619 {
 620         return is_empty (MODEST_GTKHTML_MIME_PART_VIEW (self));
 621 }
 622
 623 static gboolean
 624 modest_gtkhtml_mime_part_view_get_view_images_default (ModestMimePartView *self)
 625 {
 626         return get_view_images (MODEST_GTKHTML_MIME_PART_VIEW (self));
 627 }
 628
 629 static void
 630 modest_gtkhtml_mime_part_view_set_view_images_default (ModestMimePartView *self, gboolean view_images)
 631 {
 632         set_view_images (MODEST_GTKHTML_MIME_PART_VIEW (self), view_images);
 633 }
 634
 635 static gboolean
 636 modest_gtkhtml_mime_part_view_has_external_images_default (ModestMimePartView *self)
 637 {
 638         return has_external_images (MODEST_GTKHTML_MIME_PART_VIEW (self));
 639 }
 640
 641
 642 /* MODEST ZOOMABLE IMPLEMENTATION */
 643 static void
 644 modest_zoomable_init (gpointer g, gpointer iface_data)
 645 {
 646         ModestZoomableIface *klass = (ModestZoomableIface *)g;
 647
 648         klass->get_zoom_func = modest_gtkhtml_mime_part_view_get_zoom;
 649         klass->set_zoom_func = modest_gtkhtml_mime_part_view_set_zoom;
 650         klass->zoom_minus_func = modest_gtkhtml_mime_part_view_zoom_minus;
 651         klass->zoom_plus_func = modest_gtkhtml_mime_part_view_zoom_plus;
 652
 653         return;
 654 }
 655
 656 static gdouble
 657 modest_gtkhtml_mime_part_view_get_zoom (ModestZoomable *self)
 658 {
 659         return MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->get_zoom_func (self);
 660 }
 661
 662 static gdouble
 663 modest_gtkhtml_mime_part_view_get_zoom_default (ModestZoomable *self)
 664 {
 665         return get_zoom (MODEST_GTKHTML_MIME_PART_VIEW (self));
 666 }
 667
 668 static void
 669 modest_gtkhtml_mime_part_view_set_zoom (ModestZoomable *self, gdouble value)
 670 {
 671         MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->set_zoom_func (self, value);
 672 }
 673
 674 static void
 675 modest_gtkhtml_mime_part_view_set_zoom_default (ModestZoomable *self, gdouble value)
 676 {
 677         set_zoom (MODEST_GTKHTML_MIME_PART_VIEW (self), value);
 678 }
 679
 680 static gboolean
 681 modest_gtkhtml_mime_part_view_zoom_minus (ModestZoomable *self)
 682 {
 683         return MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->zoom_minus_func (self);
 684 }
 685
 686 static gboolean
 687 modest_gtkhtml_mime_part_view_zoom_minus_default (ModestZoomable *self)
 688 {
 689         /* operation not supported in ModestGtkhtmlMimePartView */
 690         return FALSE;
 691 }
 692
 693 static gboolean
 694 modest_gtkhtml_mime_part_view_zoom_plus (ModestZoomable *self)
 695 {
 696         return MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->zoom_plus_func (self);
 697 }
 698
 699 static gboolean
 700 modest_gtkhtml_mime_part_view_zoom_plus_default (ModestZoomable *self)
 701 {
 702         /* operation not supported in ModestGtkhtmlMimePartView */
 703         return FALSE;
 704 }
 705
 706 /* ISEARCH VIEW IMPLEMENTATION */
 707 static void
 708 modest_isearch_view_init (gpointer g, gpointer iface_data)
 709 {
 710         ModestISearchViewIface *klass = (ModestISearchViewIface *)g;
 711
 712         klass->search_func = modest_gtkhtml_mime_part_view_search;
 713         klass->search_next_func = modest_gtkhtml_mime_part_view_search_next;
 714         klass->get_selection_area_func = modest_gtkhtml_mime_part_view_get_selection_area;
 715
 716         return;
 717 }
 718
 719 static gboolean
 720 modest_gtkhtml_mime_part_view_search (ModestISearchView *self, const gchar *string)
 721 {
 722         return MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->search_func (self, string);
 723 }
 724
 725 static gboolean
 726 modest_gtkhtml_mime_part_view_search_default (ModestISearchView *self, const gchar *string)
 727 {
 728         return search (MODEST_GTKHTML_MIME_PART_VIEW (self), string);
 729 }
 730
 731 static gboolean
 732 modest_gtkhtml_mime_part_view_search_next(ModestISearchView *self)
 733 {
 734         return MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->search_next_func (self);
 735 }
 736
 737 static gboolean
 738 modest_gtkhtml_mime_part_view_search_next_default (ModestISearchView *self)
 739 {
 740         return search_next (MODEST_GTKHTML_MIME_PART_VIEW (self));
 741 }
 742
 743 static gboolean
 744 modest_gtkhtml_mime_part_view_get_selection_area (ModestISearchView *self, gint *x, gint *y,
 745                                                   gint *width, gint *height)
 746 {
 747         return MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->get_selection_area_func (self, x, y, width, height);
 748 }
 749
 750 static gboolean
 751 modest_gtkhtml_mime_part_view_get_selection_area_default (ModestISearchView *self, gint *x, gint *y,
 752                                                           gint *width, gint *height)
 753 {
 754         return get_selection_area (MODEST_GTKHTML_MIME_PART_VIEW (self), x, y, width, height);
 755 }