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 static void    modest_gtkhtml_mime_part_view_dispose    (GObject *self);
  55
  56 /* GtkHTML signal handlers */
  57 static gboolean  on_link_clicked  (GtkWidget *widget, const gchar *uri, ModestGtkhtmlMimePartView *self);
  58 static gboolean  on_url           (GtkWidget *widget, const gchar *uri, ModestGtkhtmlMimePartView *self);
  59 static gboolean  on_url_requested (GtkWidget *widget, const gchar *uri, GtkHTMLStream *stream,
  60                                    ModestGtkhtmlMimePartView *self);
  61 /* TnyMimePartView implementation */
  62 static void modest_gtkhtml_mime_part_view_clear (TnyMimePartView *self);
  63 static void modest_gtkhtml_mime_part_view_clear_default (TnyMimePartView *self);
  64 static void modest_gtkhtml_mime_part_view_set_part (TnyMimePartView *self, TnyMimePart *part);
  65 static void modest_gtkhtml_mime_part_view_set_part_default (TnyMimePartView *self, TnyMimePart *part);
  66 static TnyMimePart* modest_gtkhtml_mime_part_view_get_part (TnyMimePartView *self);
  67 static TnyMimePart* modest_gtkhtml_mime_part_view_get_part_default (TnyMimePartView *self);
  68 /* ModestMimePartView implementation */
  69 static gboolean modest_gtkhtml_mime_part_view_is_empty (ModestMimePartView *self);
  70 static gboolean modest_gtkhtml_mime_part_view_is_empty_default (ModestMimePartView *self);
  71 static gboolean modest_gtkhtml_mime_part_view_get_view_images (ModestMimePartView *self);
  72 static gboolean modest_gtkhtml_mime_part_view_get_view_images_default (ModestMimePartView *self);
  73 static void     modest_gtkhtml_mime_part_view_set_view_images (ModestMimePartView *self, gboolean view_images);
  74 static void     modest_gtkhtml_mime_part_view_set_view_images_default (ModestMimePartView *self, gboolean view_images);
  75 static gboolean modest_gtkhtml_mime_part_view_has_external_images (ModestMimePartView *self);
  76 static gboolean modest_gtkhtml_mime_part_view_has_external_images_default (ModestMimePartView *self);
  77 /* ModestZoomable implementation */
  78 static gdouble modest_gtkhtml_mime_part_view_get_zoom (ModestZoomable *self);
  79 static void modest_gtkhtml_mime_part_view_set_zoom (ModestZoomable *self, gdouble value);
  80 static gboolean modest_gtkhtml_mime_part_view_zoom_minus (ModestZoomable *self);
  81 static gboolean modest_gtkhtml_mime_part_view_zoom_plus (ModestZoomable *self);
  82 static gdouble modest_gtkhtml_mime_part_view_get_zoom_default (ModestZoomable *self);
  83 static void modest_gtkhtml_mime_part_view_set_zoom_default (ModestZoomable *self, gdouble value);
  84 static gboolean modest_gtkhtml_mime_part_view_zoom_minus_default (ModestZoomable *self);
  85 static gboolean modest_gtkhtml_mime_part_view_zoom_plus_default (ModestZoomable *self);
  86 /* ModestISearchView implementation */
  87 static gboolean modest_gtkhtml_mime_part_view_search                    (ModestISearchView *self, const gchar *string);
  88 static gboolean modest_gtkhtml_mime_part_view_search_next               (ModestISearchView *self);
  89 static gboolean modest_gtkhtml_mime_part_view_get_selection_area        (ModestISearchView *self, gint *x, gint *y,
  90                                                                          gint *width, gint *height);
  91 static gboolean modest_gtkhtml_mime_part_view_search_default            (ModestISearchView *self, const gchar *string);
  92 static gboolean modest_gtkhtml_mime_part_view_search_next_default       (ModestISearchView *self);
  93 static gboolean modest_gtkhtml_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   (ModestGtkhtmlMimePartView *self);
  99 static void          set_html_part   (ModestGtkhtmlMimePartView *self, TnyMimePart *part);
 100 static void          set_text_part   (ModestGtkhtmlMimePartView *self, TnyMimePart *part);
 101 static void          set_empty_part  (ModestGtkhtmlMimePartView *self);
 102 static void          set_part   (ModestGtkhtmlMimePartView *self, TnyMimePart *part);
 103 static gboolean      is_empty   (ModestGtkhtmlMimePartView *self);
 104 static gboolean      get_view_images   (ModestGtkhtmlMimePartView *self);
 105 static void          set_view_images   (ModestGtkhtmlMimePartView *self, gboolean view_images);
 106 static gboolean      has_external_images   (ModestGtkhtmlMimePartView *self);
 107 static void          set_zoom   (ModestGtkhtmlMimePartView *self, gdouble zoom);
 108 static gdouble       get_zoom   (ModestGtkhtmlMimePartView *self);
 109 static gboolean      has_contents_receiver (gpointer engine, const gchar *data,
 110                                             size_t len, gboolean *has_contents);
 111 static gboolean      search             (ModestGtkhtmlMimePartView *self, const gchar *string);
 112 static gboolean      search_next        (ModestGtkhtmlMimePartView *self);
 113 static gboolean      get_selection_area (ModestGtkhtmlMimePartView *self, gint *x, gint *y,
 114                                          gint *width, gint *height);
 115
 116 typedef struct _ModestGtkhtmlMimePartViewPrivate ModestGtkhtmlMimePartViewPrivate;
 117 struct _ModestGtkhtmlMimePartViewPrivate {
 118         TnyMimePart *part;
 119         gdouble current_zoom;
 120         gboolean view_images;
 121         gboolean has_external_images;
 122 };
 123
 124 #define MODEST_GTKHTML_MIME_PART_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
 125                                                                                        MODEST_TYPE_GTKHTML_MIME_PART_VIEW, \
 126                                                                                        ModestGtkhtmlMimePartViewPrivate))
 127
 128 static GtkHTMLClass *parent_class = NULL;
 129
 130 GtkWidget *
 131 modest_gtkhtml_mime_part_view_new ()
 132 {
 133         return g_object_new (MODEST_TYPE_GTKHTML_MIME_PART_VIEW, NULL);
 134 }
 135
 136 /* GOBJECT IMPLEMENTATION */
 137 GType
 138 modest_gtkhtml_mime_part_view_get_type (void)
 139 {
 140         static GType my_type = 0;
 141         if (!my_type) {
 142                 static const GTypeInfo my_info = {
 143                         sizeof(ModestGtkhtmlMimePartViewClass),
 144                         NULL,           /* base init */
 145                         NULL,           /* base finalize */
 146                         (GClassInitFunc) modest_gtkhtml_mime_part_view_class_init,
 147                         NULL,           /* class finalize */
 148                         NULL,           /* class data */
 149                         sizeof(ModestGtkhtmlMimePartView),
 150                         1,              /* n_preallocs */
 151                         (GInstanceInitFunc) modest_gtkhtml_mime_part_view_init,
 152                         NULL
 153                 };
 154
 155                 static const GInterfaceInfo tny_mime_part_view_info =
 156                 {
 157                   (GInterfaceInitFunc) tny_mime_part_view_init, /* interface_init */
 158                   NULL,         /* interface_finalize */
 159                   NULL          /* interface_data */
 160                 };
 161
 162                 static const GInterfaceInfo modest_mime_part_view_info =
 163                 {
 164                   (GInterfaceInitFunc) modest_mime_part_view_init, /* interface_init */
 165                   NULL,         /* interface_finalize */
 166                   NULL          /* interface_data */
 167                 };
 168
 169                 static const GInterfaceInfo modest_zoomable_info =
 170                 {
 171                   (GInterfaceInitFunc) modest_zoomable_init, /* interface_init */
 172                   NULL,         /* interface_finalize */
 173                   NULL          /* interface_data */
 174                 };
 175
 176                 static const GInterfaceInfo modest_isearch_view_info =
 177                 {
 178                   (GInterfaceInitFunc) modest_isearch_view_init, /* interface_init */
 179                   NULL,         /* interface_finalize */
 180                   NULL          /* interface_data */
 181                 };
 182
 183                 my_type = g_type_register_static (GTK_TYPE_HTML,
 184                                                   "ModestGtkhtmlMimePartView",
 185                                                   &my_info, 0);
 186
 187                 g_type_add_interface_static (my_type, TNY_TYPE_MIME_PART_VIEW,
 188                         &tny_mime_part_view_info);
 189
 190                 g_type_add_interface_static (my_type, MODEST_TYPE_MIME_PART_VIEW,
 191                         &modest_mime_part_view_info);
 192
 193                 g_type_add_interface_static (my_type, MODEST_TYPE_ZOOMABLE,
 194                         &modest_zoomable_info);
 195                 g_type_add_interface_static (my_type, MODEST_TYPE_ISEARCH_VIEW,
 196                         &modest_isearch_view_info);
 197         }
 198         return my_type;
 199 }
 200
 201 static void
 202 modest_gtkhtml_mime_part_view_class_init (ModestGtkhtmlMimePartViewClass *klass)
 203 {
 204         GObjectClass *gobject_class;
 205         GtkBindingSet *binding_set;
 206
 207         gobject_class = (GObjectClass*) klass;
 208
 209         parent_class            = g_type_class_peek_parent (klass);
 210         gobject_class->dispose = modest_gtkhtml_mime_part_view_dispose;
 211         gobject_class->finalize = modest_gtkhtml_mime_part_view_finalize;
 212
 213         klass->get_part_func = modest_gtkhtml_mime_part_view_get_part_default;
 214         klass->set_part_func = modest_gtkhtml_mime_part_view_set_part_default;
 215         klass->clear_func = modest_gtkhtml_mime_part_view_clear_default;
 216         klass->is_empty_func = modest_gtkhtml_mime_part_view_is_empty_default;
 217         klass->get_view_images_func = modest_gtkhtml_mime_part_view_get_view_images_default;
 218         klass->set_view_images_func = modest_gtkhtml_mime_part_view_set_view_images_default;
 219         klass->has_external_images_func = modest_gtkhtml_mime_part_view_has_external_images_default;
 220         klass->get_zoom_func = modest_gtkhtml_mime_part_view_get_zoom_default;
 221         klass->set_zoom_func = modest_gtkhtml_mime_part_view_set_zoom_default;
 222         klass->zoom_minus_func = modest_gtkhtml_mime_part_view_zoom_minus_default;
 223         klass->zoom_plus_func = modest_gtkhtml_mime_part_view_zoom_plus_default;
 224         klass->search_func = modest_gtkhtml_mime_part_view_search_default;
 225         klass->search_next_func = modest_gtkhtml_mime_part_view_search_next_default;
 226         klass->get_selection_area_func = modest_gtkhtml_mime_part_view_get_selection_area_default;
 227
 228         binding_set = gtk_binding_set_by_class (klass);
 229         gtk_binding_entry_skip (binding_set, GDK_Down, 0);
 230         gtk_binding_entry_skip (binding_set, GDK_Up, 0);
 231         gtk_binding_entry_skip (binding_set, GDK_KP_Up, 0);
 232         gtk_binding_entry_skip (binding_set, GDK_KP_Down, 0);
 233         gtk_binding_entry_skip (binding_set, GDK_Page_Down, 0);
 234         gtk_binding_entry_skip (binding_set, GDK_Page_Up, 0);
 235         gtk_binding_entry_skip (binding_set, GDK_KP_Page_Up, 0);
 236         gtk_binding_entry_skip (binding_set, GDK_KP_Page_Down, 0);
 237         gtk_binding_entry_skip (binding_set, GDK_Home, 0);
 238         gtk_binding_entry_skip (binding_set, GDK_End, 0);
 239         gtk_binding_entry_skip (binding_set, GDK_KP_Home, 0);
 240         gtk_binding_entry_skip (binding_set, GDK_KP_End, 0);
 241
 242         g_type_class_add_private (gobject_class, sizeof(ModestGtkhtmlMimePartViewPrivate));
 243
 244 }
 245
 246 static void
 247 modest_gtkhtml_mime_part_view_init (ModestGtkhtmlMimePartView *self)
 248 {
 249         ModestGtkhtmlMimePartViewPrivate *priv = MODEST_GTKHTML_MIME_PART_VIEW_GET_PRIVATE (self);
 250
 251         gtk_html_set_editable        (GTK_HTML(self), FALSE);
 252         gtk_html_allow_selection     (GTK_HTML(self), TRUE);
 253         gtk_html_set_caret_mode      (GTK_HTML(self), FALSE);
 254         gtk_html_set_blocking        (GTK_HTML(self), TRUE);
 255         gtk_html_set_images_blocking (GTK_HTML(self), TRUE);
 256
 257         g_signal_connect (G_OBJECT(self), "link_clicked",
 258                           G_CALLBACK(on_link_clicked), self);
 259         g_signal_connect (G_OBJECT(self), "url_requested",
 260                           G_CALLBACK(on_url_requested), self);
 261         g_signal_connect (G_OBJECT(self), "on_url",
 262                           G_CALLBACK(on_url), self);
 263
 264         priv->part = NULL;
 265         priv->current_zoom = 1.0;
 266         priv->view_images = FALSE;
 267         priv->has_external_images = FALSE;
 268 }
 269
 270 static void
 271 modest_gtkhtml_mime_part_view_finalize (GObject *obj)
 272 {
 273         G_OBJECT_CLASS (parent_class)->finalize (obj);
 274 }
 275
 276 static void
 277 modest_gtkhtml_mime_part_view_dispose (GObject *obj)
 278 {
 279         ModestGtkhtmlMimePartViewPrivate *priv = MODEST_GTKHTML_MIME_PART_VIEW_GET_PRIVATE (obj);
 280
 281         if (priv->part) {
 282                 g_object_unref (priv->part);
 283                 priv->part = NULL;
 284         }
 285
 286         G_OBJECT_CLASS (parent_class)->dispose (obj);
 287 }
 288
 289 /* GTKHTML SIGNALS HANDLERS */
 290
 291 static gboolean
 292 on_link_clicked (GtkWidget *widget, const gchar *uri, ModestGtkhtmlMimePartView *self)
 293 {
 294         gboolean result;
 295         g_return_val_if_fail (MODEST_IS_GTKHTML_MIME_PART_VIEW (self), FALSE);
 296
 297         g_signal_emit_by_name (G_OBJECT (self), "activate-link", uri, &result);
 298         return result;
 299 }
 300
 301 static gboolean
 302 on_url (GtkWidget *widget, const gchar *uri, ModestGtkhtmlMimePartView *self)
 303 {
 304         gboolean result;
 305         g_return_val_if_fail (MODEST_IS_GTKHTML_MIME_PART_VIEW (self), FALSE);
 306
 307         g_signal_emit_by_name (G_OBJECT (self), "link-hover", uri, &result);
 308         return result;
 309 }
 310
 311 typedef struct {
 312         gpointer buffer;
 313         GtkHTML *html;
 314         GtkHTMLStream *stream;
 315 } ImageFetcherInfo;
 316
 317 static gboolean
 318 on_url_requested (GtkWidget *widget, const gchar *uri, GtkHTMLStream *stream,
 319                   ModestGtkhtmlMimePartView *self)
 320 {
 321         gboolean result;
 322         TnyStream *tny_stream;
 323         g_return_val_if_fail (MODEST_IS_GTKHTML_MIME_PART_VIEW (self), FALSE);
 324
 325         if (g_str_has_prefix (uri, "http:")) {
 326                 ModestGtkhtmlMimePartViewPrivate *priv = MODEST_GTKHTML_MIME_PART_VIEW_GET_PRIVATE (self);
 327
 328                 if (!priv->view_images)
 329                         priv->has_external_images = TRUE;
 330         }
 331
 332         tny_stream = TNY_STREAM (modest_tny_stream_gtkhtml_new (stream, GTK_HTML (widget)));
 333         g_signal_emit_by_name (MODEST_MIME_PART_VIEW (self), "fetch-url", uri, tny_stream, &result);
 334         g_object_unref (tny_stream);
 335         return result;
 336 }
 337
 338 /* INTERNAL API */
 339
 340 static void
 341 set_html_part (ModestGtkhtmlMimePartView *self, TnyMimePart *part)
 342 {
 343         GtkHTMLStream *gtkhtml_stream;
 344         TnyStream *tny_stream;
 345
 346         g_return_if_fail (self);
 347         g_return_if_fail (part);
 348
 349         gtkhtml_stream = gtk_html_begin(GTK_HTML(self));
 350
 351         tny_stream     = TNY_STREAM(modest_tny_stream_gtkhtml_new (gtkhtml_stream, GTK_HTML (self)));
 352         tny_stream_reset (tny_stream);
 353
 354         tny_mime_part_decode_to_stream ((TnyMimePart*)part, tny_stream, NULL);
 355         tny_stream_close (tny_stream);
 356         g_object_unref (G_OBJECT(tny_stream));
 357 }
 358
 359 static void
 360 set_text_part (ModestGtkhtmlMimePartView *self, TnyMimePart *part)
 361 {
 362         TnyStream* text_to_html_stream, *tny_stream;
 363         GtkHTMLStream *gtkhtml_stream;
 364
 365         g_return_if_fail (self);
 366         g_return_if_fail (part);
 367
 368         gtkhtml_stream = gtk_html_begin(GTK_HTML(self));
 369         tny_stream =  TNY_STREAM(modest_tny_stream_gtkhtml_new (gtkhtml_stream, GTK_HTML (self)));
 370         text_to_html_stream = TNY_STREAM (modest_stream_text_to_html_new (tny_stream));
 371         modest_stream_text_to_html_set_linkify_limit (MODEST_STREAM_TEXT_TO_HTML (text_to_html_stream), 64*1024);
 372         modest_stream_text_to_html_set_full_limit (MODEST_STREAM_TEXT_TO_HTML (text_to_html_stream), 640*1024);
 373
 374         // FIXME: tinymail
 375         tny_mime_part_decode_to_stream ((TnyMimePart*)part, text_to_html_stream, NULL);
 376         tny_stream_write (text_to_html_stream, "\n", 1);
 377         tny_stream_reset (text_to_html_stream);
 378         tny_stream_close (text_to_html_stream);
 379
 380         g_object_unref (G_OBJECT(text_to_html_stream));
 381         g_object_unref (G_OBJECT(tny_stream));
 382         /* gtk_html_stream_destroy (gtkhtml_stream); */
 383 }
 384
 385 static void
 386 set_empty_part (ModestGtkhtmlMimePartView *self)
 387 {
 388         g_return_if_fail (self);
 389
 390         gtk_html_load_from_string (GTK_HTML(self),
 391                                    "", 1);
 392 }
 393
 394 static void
 395 set_part (ModestGtkhtmlMimePartView *self, TnyMimePart *part)
 396 {
 397         ModestGtkhtmlMimePartViewPrivate *priv;
 398
 399         g_return_if_fail (self);
 400
 401         priv = MODEST_GTKHTML_MIME_PART_VIEW_GET_PRIVATE(self);
 402         priv->has_external_images = FALSE;
 403
 404         if (part != priv->part) {
 405                 if (priv->part)
 406                         g_object_unref (G_OBJECT(priv->part));
 407                 if (part)
 408                         g_object_ref   (G_OBJECT(part));
 409                 priv->part = part;
 410         }
 411
 412         if (!part) {
 413                 set_empty_part (self);
 414                 return;
 415         }
 416
 417         if (tny_mime_part_content_type_is (part, "text/html"))
 418                 set_html_part (self, part);
 419         else
 420                 set_text_part (self, part);
 421
 422 }
 423
 424 static TnyMimePart*
 425 get_part (ModestGtkhtmlMimePartView *self)
 426 {
 427         TnyMimePart *part;
 428
 429         g_return_val_if_fail (MODEST_IS_GTKHTML_MIME_PART_VIEW (self), NULL);
 430
 431         part = MODEST_GTKHTML_MIME_PART_VIEW_GET_PRIVATE(self)->part;
 432
 433         if (part)
 434                 g_object_ref (part);
 435
 436         return part;
 437 }
 438
 439 static gboolean
 440 has_contents_receiver (gpointer engine, const gchar *data,
 441                        size_t len, gboolean *has_contents)
 442 {
 443         if (len > 1 || ((len == 1)&&(data[0]!='\n'))) {
 444                 *has_contents = TRUE;
 445                 return FALSE;
 446         }
 447         return TRUE;
 448 }
 449
 450 static gboolean
 451 is_empty   (ModestGtkhtmlMimePartView *self)
 452 {
 453         /* TODO: Find some gtkhtml API to check whether there is any (visible, non markup)
 454          * text in the message:
 455          */
 456         gboolean has_contents = FALSE;
 457
 458         gtk_html_export (GTK_HTML (self), "text/plain",
 459                          (GtkHTMLSaveReceiverFn) has_contents_receiver, &has_contents);
 460
 461         return !has_contents;
 462 }
 463
 464 static gboolean
 465 get_view_images   (ModestGtkhtmlMimePartView *self)
 466 {
 467         ModestGtkhtmlMimePartViewPrivate *priv;
 468
 469         g_return_val_if_fail (MODEST_IS_GTKHTML_MIME_PART_VIEW (self), FALSE);
 470
 471         priv = MODEST_GTKHTML_MIME_PART_VIEW_GET_PRIVATE (self);
 472         return priv->view_images;
 473 }
 474
 475 static void
 476 set_view_images   (ModestGtkhtmlMimePartView *self, gboolean view_images)
 477 {
 478         ModestGtkhtmlMimePartViewPrivate *priv;
 479
 480         g_return_if_fail (MODEST_IS_GTKHTML_MIME_PART_VIEW (self));
 481
 482         priv = MODEST_GTKHTML_MIME_PART_VIEW_GET_PRIVATE (self);
 483         priv->view_images = view_images;
 484 }
 485
 486 static gboolean
 487 has_external_images   (ModestGtkhtmlMimePartView *self)
 488 {
 489         ModestGtkhtmlMimePartViewPrivate *priv;
 490
 491         g_return_val_if_fail (MODEST_IS_GTKHTML_MIME_PART_VIEW (self), FALSE);
 492
 493         priv = MODEST_GTKHTML_MIME_PART_VIEW_GET_PRIVATE (self);
 494         return priv->has_external_images;
 495 }
 496
 497 static void
 498 set_zoom (ModestGtkhtmlMimePartView *self, gdouble zoom)
 499 {
 500         ModestGtkhtmlMimePartViewPrivate *priv;
 501
 502         g_return_if_fail (MODEST_IS_GTKHTML_MIME_PART_VIEW (self));
 503
 504         priv = MODEST_GTKHTML_MIME_PART_VIEW_GET_PRIVATE (self);
 505         priv->current_zoom = zoom;
 506         gtk_html_set_magnification (GTK_HTML(self), zoom);
 507
 508         gtk_widget_queue_resize (GTK_WIDGET (self));
 509 }
 510
 511 static gdouble
 512 get_zoom (ModestGtkhtmlMimePartView *self)
 513 {
 514         ModestGtkhtmlMimePartViewPrivate *priv;
 515
 516         g_return_val_if_fail (MODEST_IS_GTKHTML_MIME_PART_VIEW (self), 1.0);
 517
 518         priv = MODEST_GTKHTML_MIME_PART_VIEW_GET_PRIVATE (self);
 519
 520         return priv->current_zoom;
 521 }
 522
 523 static gboolean
 524 search (ModestGtkhtmlMimePartView *self,
 525         const gchar *string)
 526 {
 527         return gtk_html_engine_search (GTK_HTML (self),
 528                                        string,
 529                                        FALSE,   /* case sensitive */
 530                                        TRUE,    /* forward */
 531                                        FALSE);  /* regexp */
 532 }
 533
 534 static gboolean
 535 search_next (ModestGtkhtmlMimePartView *self)
 536 {
 537         return gtk_html_engine_search_next (GTK_HTML (self));
 538 }
 539
 540 static gboolean
 541 get_selection_area (ModestGtkhtmlMimePartView *self,
 542                     gint *x, gint *y,
 543                     gint *width, gint *height)
 544 {
 545 #ifdef HAVE_GTK_HTML_GET_SELECTION_AREA
 546         gtk_html_get_selection_area (GTK_HTML (self), x, y, width, height);
 547         return TRUE;
 548 #else
 549         return FALSE;
 550 #endif
 551 }
 552
 553
 554 /* TNY MIME PART IMPLEMENTATION */
 555
 556 static void
 557 tny_mime_part_view_init (gpointer g, gpointer iface_data)
 558 {
 559         TnyMimePartViewIface *klass = (TnyMimePartViewIface *)g;
 560
 561         klass->get_part = modest_gtkhtml_mime_part_view_get_part;
 562         klass->set_part = modest_gtkhtml_mime_part_view_set_part;
 563         klass->clear = modest_gtkhtml_mime_part_view_clear;
 564
 565         return;
 566 }
 567
 568 static TnyMimePart*
 569 modest_gtkhtml_mime_part_view_get_part (TnyMimePartView *self)
 570 {
 571         return MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->get_part_func (self);
 572 }
 573
 574
 575 static TnyMimePart*
 576 modest_gtkhtml_mime_part_view_get_part_default (TnyMimePartView *self)
 577 {
 578         return TNY_MIME_PART (get_part (MODEST_GTKHTML_MIME_PART_VIEW (self)));
 579 }
 580
 581 static void
 582 modest_gtkhtml_mime_part_view_set_part (TnyMimePartView *self,
 583                                         TnyMimePart *part)
 584 {
 585         MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->set_part_func (self, part);
 586 }
 587
 588 static void
 589 modest_gtkhtml_mime_part_view_set_part_default (TnyMimePartView *self,
 590                                                 TnyMimePart *part)
 591 {
 592         g_return_if_fail ((part == NULL) || TNY_IS_MIME_PART (part));
 593
 594         set_part (MODEST_GTKHTML_MIME_PART_VIEW (self), part);
 595 }
 596
 597 static void
 598 modest_gtkhtml_mime_part_view_clear (TnyMimePartView *self)
 599 {
 600         MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->clear_func (self);
 601 }
 602
 603 static void
 604 modest_gtkhtml_mime_part_view_clear_default (TnyMimePartView *self)
 605 {
 606         set_part (MODEST_GTKHTML_MIME_PART_VIEW (self), NULL);
 607 }
 608
 609 /* MODEST MIME PART VIEW IMPLEMENTATION */
 610
 611 static void
 612 modest_mime_part_view_init (gpointer g, gpointer iface_data)
 613 {
 614         ModestMimePartViewIface *klass = (ModestMimePartViewIface *)g;
 615
 616         klass->is_empty_func = modest_gtkhtml_mime_part_view_is_empty;
 617         klass->get_view_images_func = modest_gtkhtml_mime_part_view_get_view_images;
 618         klass->set_view_images_func = modest_gtkhtml_mime_part_view_set_view_images;
 619         klass->has_external_images_func = modest_gtkhtml_mime_part_view_has_external_images;
 620
 621         return;
 622 }
 623
 624 static gboolean
 625 modest_gtkhtml_mime_part_view_is_empty (ModestMimePartView *self)
 626 {
 627         return MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->is_empty_func (self);
 628 }
 629
 630 static gboolean
 631 modest_gtkhtml_mime_part_view_get_view_images (ModestMimePartView *self)
 632 {
 633         return MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->get_view_images_func (self);
 634 }
 635
 636 static void
 637 modest_gtkhtml_mime_part_view_set_view_images (ModestMimePartView *self, gboolean view_images)
 638 {
 639         MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->set_view_images_func (self, view_images);
 640 }
 641
 642 static gboolean
 643 modest_gtkhtml_mime_part_view_has_external_images (ModestMimePartView *self)
 644 {
 645         return MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->has_external_images_func (self);
 646 }
 647
 648 static gboolean
 649 modest_gtkhtml_mime_part_view_is_empty_default (ModestMimePartView *self)
 650 {
 651         return is_empty (MODEST_GTKHTML_MIME_PART_VIEW (self));
 652 }
 653
 654 static gboolean
 655 modest_gtkhtml_mime_part_view_get_view_images_default (ModestMimePartView *self)
 656 {
 657         return get_view_images (MODEST_GTKHTML_MIME_PART_VIEW (self));
 658 }
 659
 660 static void
 661 modest_gtkhtml_mime_part_view_set_view_images_default (ModestMimePartView *self, gboolean view_images)
 662 {
 663         set_view_images (MODEST_GTKHTML_MIME_PART_VIEW (self), view_images);
 664 }
 665
 666 static gboolean
 667 modest_gtkhtml_mime_part_view_has_external_images_default (ModestMimePartView *self)
 668 {
 669         return has_external_images (MODEST_GTKHTML_MIME_PART_VIEW (self));
 670 }
 671
 672
 673 /* MODEST ZOOMABLE IMPLEMENTATION */
 674 static void
 675 modest_zoomable_init (gpointer g, gpointer iface_data)
 676 {
 677         ModestZoomableIface *klass = (ModestZoomableIface *)g;
 678
 679         klass->get_zoom_func = modest_gtkhtml_mime_part_view_get_zoom;
 680         klass->set_zoom_func = modest_gtkhtml_mime_part_view_set_zoom;
 681         klass->zoom_minus_func = modest_gtkhtml_mime_part_view_zoom_minus;
 682         klass->zoom_plus_func = modest_gtkhtml_mime_part_view_zoom_plus;
 683
 684         return;
 685 }
 686
 687 static gdouble
 688 modest_gtkhtml_mime_part_view_get_zoom (ModestZoomable *self)
 689 {
 690         return MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->get_zoom_func (self);
 691 }
 692
 693 static gdouble
 694 modest_gtkhtml_mime_part_view_get_zoom_default (ModestZoomable *self)
 695 {
 696         return get_zoom (MODEST_GTKHTML_MIME_PART_VIEW (self));
 697 }
 698
 699 static void
 700 modest_gtkhtml_mime_part_view_set_zoom (ModestZoomable *self, gdouble value)
 701 {
 702         MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->set_zoom_func (self, value);
 703 }
 704
 705 static void
 706 modest_gtkhtml_mime_part_view_set_zoom_default (ModestZoomable *self, gdouble value)
 707 {
 708         set_zoom (MODEST_GTKHTML_MIME_PART_VIEW (self), value);
 709 }
 710
 711 static gboolean
 712 modest_gtkhtml_mime_part_view_zoom_minus (ModestZoomable *self)
 713 {
 714         return MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->zoom_minus_func (self);
 715 }
 716
 717 static gboolean
 718 modest_gtkhtml_mime_part_view_zoom_minus_default (ModestZoomable *self)
 719 {
 720         /* operation not supported in ModestGtkhtmlMimePartView */
 721         return FALSE;
 722 }
 723
 724 static gboolean
 725 modest_gtkhtml_mime_part_view_zoom_plus (ModestZoomable *self)
 726 {
 727         return MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->zoom_plus_func (self);
 728 }
 729
 730 static gboolean
 731 modest_gtkhtml_mime_part_view_zoom_plus_default (ModestZoomable *self)
 732 {
 733         /* operation not supported in ModestGtkhtmlMimePartView */
 734         return FALSE;
 735 }
 736
 737 /* ISEARCH VIEW IMPLEMENTATION */
 738 static void
 739 modest_isearch_view_init (gpointer g, gpointer iface_data)
 740 {
 741         ModestISearchViewIface *klass = (ModestISearchViewIface *)g;
 742
 743         klass->search_func = modest_gtkhtml_mime_part_view_search;
 744         klass->search_next_func = modest_gtkhtml_mime_part_view_search_next;
 745         klass->get_selection_area_func = modest_gtkhtml_mime_part_view_get_selection_area;
 746
 747         return;
 748 }
 749
 750 static gboolean
 751 modest_gtkhtml_mime_part_view_search (ModestISearchView *self, const gchar *string)
 752 {
 753         return MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->search_func (self, string);
 754 }
 755
 756 static gboolean
 757 modest_gtkhtml_mime_part_view_search_default (ModestISearchView *self, const gchar *string)
 758 {
 759         return search (MODEST_GTKHTML_MIME_PART_VIEW (self), string);
 760 }
 761
 762 static gboolean
 763 modest_gtkhtml_mime_part_view_search_next(ModestISearchView *self)
 764 {
 765         return MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->search_next_func (self);
 766 }
 767
 768 static gboolean
 769 modest_gtkhtml_mime_part_view_search_next_default (ModestISearchView *self)
 770 {
 771         return search_next (MODEST_GTKHTML_MIME_PART_VIEW (self));
 772 }
 773
 774 static gboolean
 775 modest_gtkhtml_mime_part_view_get_selection_area (ModestISearchView *self, gint *x, gint *y,
 776                                                   gint *width, gint *height)
 777 {
 778         return MODEST_GTKHTML_MIME_PART_VIEW_GET_CLASS (self)->get_selection_area_func (self, x, y, width, height);
 779 }
 780
 781 static gboolean
 782 modest_gtkhtml_mime_part_view_get_selection_area_default (ModestISearchView *self, gint *x, gint *y,
 783                                                           gint *width, gint *height)
 784 {
 785         return get_selection_area (MODEST_GTKHTML_MIME_PART_VIEW (self), x, y, width, height);
 786 }