git.maemo.org Git - modest/blob - src/widgets/modest-gtkhtml-msg-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 <tny-gtk-text-buffer-stream.h>
  32 #include <string.h>
  33 #include <regex.h>
  34 #include <ctype.h>
  35 #include <stdlib.h>
  36 #include <glib/gi18n.h>
  37 #include <tny-list.h>
  38 #include <tny-simple-list.h>
  39 #include <tny-vfs-stream.h>
  40
  41 #include <modest-tny-msg.h>
  42 #include <modest-text-utils.h>
  43 #include <widgets/modest-msg-view.h>
  44 #ifdef MODEST_TOOLKIT_HILDON2
  45 #include <widgets/modest-compact-mail-header-view.h>
  46 #include <hildon/hildon-gtk.h>
  47 #else
  48 #include <widgets/modest-expander-mail-header-view.h>
  49 #endif
  50 #include <widgets/modest-attachments-view.h>
  51 #include <modest-marshal.h>
  52 #include <widgets/modest-gtkhtml-mime-part-view.h>
  53 #include <widgets/modest-gtkhtml-msg-view.h>
  54 #include <widgets/modest-isearch-view.h>
  55 #include <widgets/modest-ui-constants.h>
  56 #include <modest-icon-names.h>
  57
  58 /* FIXNE: we should have no maemo-deps in widgets/ */
  59 #ifndef MODEST_TOOLKIT_GTK
  60 #include "maemo/modest-hildon-includes.h"
  61 #endif /*!MODEST_TOOLKIT_GTK*/
  62
  63
  64 /* 'private'/'protected' functions */
  65 static void     modest_gtkhtml_msg_view_class_init   (ModestGtkhtmlMsgViewClass *klass);
  66 static void     tny_header_view_init (gpointer g, gpointer iface_data);
  67 static void     tny_msg_view_init (gpointer g, gpointer iface_data);
  68 static void     tny_mime_part_view_init (gpointer g, gpointer iface_data);
  69 static void     modest_mime_part_view_init (gpointer g, gpointer iface_data);
  70 static void     modest_zoomable_init (gpointer g, gpointer iface_data);
  71 static void     modest_isearch_view_init (gpointer g, gpointer iface_data);
  72 static void     modest_msg_view_init (gpointer g, gpointer iface_data);
  73 static void     modest_gtkhtml_msg_view_init         (ModestGtkhtmlMsgView *obj);
  74 static void     modest_gtkhtml_msg_view_finalize     (GObject *obj);
  75 static void     modest_gtkhtml_msg_view_destroy     (GtkObject *obj);
  76 static void     set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
  77 static void     get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
  78
  79 /* headers signals */
  80 static void on_recpt_activated (ModestMailHeaderView *header_view, const gchar *address, ModestGtkhtmlMsgView *msg_view);
  81 static void on_show_details (ModestMailHeaderView *header_view, ModestGtkhtmlMsgView *msg_view);
  82 static void on_attachment_activated (ModestAttachmentsView * att_view, TnyMimePart *mime_part, gpointer userdata);
  83
  84 /* body view signals */
  85 static gboolean on_activate_link (GtkWidget *widget, const gchar *uri, ModestGtkhtmlMsgView *msg_view);
  86 static gboolean on_fetch_url (GtkWidget *widget, const gchar *uri, TnyStream *stream,
  87                               ModestGtkhtmlMsgView *msg_view);
  88 static gboolean on_link_hover (GtkWidget *widget, const gchar *uri, ModestGtkhtmlMsgView *msg_view);
  89
  90 #ifdef MAEMO_CHANGES
  91 static void     on_tap_and_hold (GtkWidget *widget, gpointer userdata);
  92 static gboolean on_tap_and_hold_query (GtkWidget *widget, GdkEvent *event, gpointer userdata);
  93 #endif /*MAEMO_CHANGES*/
  94
  95
  96 /* size allocation and drawing handlers */
  97 static void get_view_allocation (ModestGtkhtmlMsgView *msg_view, GtkAllocation *allocation);
  98 static void size_request (GtkWidget *widget, GtkRequisition *req);
  99 static void size_allocate (GtkWidget *widget, GtkAllocation *alloc);
 100 static void realize (GtkWidget *widget);
 101 static void unrealize (GtkWidget *widget);
 102 static gint expose (GtkWidget *widget, GdkEventExpose *event);
 103 static void reclamp_adjustment (GtkAdjustment *adj, gboolean *value_changed);
 104 static void set_hadjustment_values (ModestGtkhtmlMsgView *msg_view, gboolean *value_changed);
 105 static void set_scroll_adjustments (ModestGtkhtmlMsgView *msg_view, GtkAdjustment *hadj, GtkAdjustment *vadj);
 106 static void adjustment_value_changed (GtkAdjustment *adj, gpointer data);
 107 static void html_adjustment_changed (GtkAdjustment *adj, gpointer data);
 108 static void disconnect_vadjustment (ModestGtkhtmlMsgView *obj);
 109 static void disconnect_hadjustment (ModestGtkhtmlMsgView *obj);
 110 static gboolean idle_readjust_scroll (ModestGtkhtmlMsgView *obj);
 111
 112 /* vertical panning implementation */
 113 #ifdef MAEMO_CHANGES
 114 static gboolean motion_notify_event (GtkWidget *widget,
 115                                      GdkEventMotion *event,
 116                                      gpointer userdata);
 117 #endif
 118
 119 static gboolean
 120 button_press_event (GtkWidget *widget,
 121                     GdkEventButton *event,
 122                     gpointer userdata);
 123 static gboolean
 124 button_release_event (GtkWidget *widget,
 125                       GdkEventButton *event,
 126                       gpointer userdata);
 127
 128 /* GtkContainer methods */
 129 static void forall (GtkContainer *container, gboolean include_internals,
 130                     GtkCallback callback, gpointer userdata);
 131 static void container_remove (GtkContainer *container, GtkWidget *widget);
 132
 133 /* TnyMimePartView implementation */
 134 static void modest_msg_view_mp_clear (TnyMimePartView *self);
 135 static void modest_msg_view_mp_set_part (TnyMimePartView *self, TnyMimePart *part);
 136 static void modest_msg_view_mp_set_part_default (TnyMimePartView *self, TnyMimePart *part);
 137 static TnyMimePart* modest_msg_view_mp_get_part (TnyMimePartView *self);
 138 static TnyMimePart* modest_msg_view_mp_get_part_default (TnyMimePartView *self);
 139 /* ModestMimePartView implementation */
 140 static gboolean modest_msg_view_mp_is_empty (ModestMimePartView *self);
 141 static gboolean modest_msg_view_mp_is_empty_default (ModestMimePartView *self);
 142 /* TnyHeaderView implementation */
 143 static void modest_msg_view_set_header (TnyHeaderView *self, TnyHeader *header);
 144 static void modest_msg_view_set_header_default (TnyHeaderView *self, TnyHeader *header);
 145 static void modest_msg_view_clear_header (TnyHeaderView *self);
 146 static void modest_msg_view_clear_header_default (TnyHeaderView *self);
 147 /* TnyMsgView implementation */
 148 static TnyMsg *modest_msg_view_get_msg (TnyMsgView *self);
 149 static TnyMsg *modest_msg_view_get_msg_default (TnyMsgView *self);
 150 static void modest_msg_view_set_msg (TnyMsgView *self, TnyMsg *msg);
 151 static void modest_msg_view_set_msg_default (TnyMsgView *self, TnyMsg *msg);
 152 static void modest_msg_view_clear (TnyMsgView *self);
 153 static void modest_msg_view_clear_default (TnyMsgView *self);
 154 static void modest_msg_view_set_unavailable (TnyMsgView *self);
 155 static void modest_msg_view_set_unavailable_default (TnyMsgView *self);
 156 static TnyMimePartView *modest_msg_view_create_mime_part_view_for (TnyMsgView *self, TnyMimePart *part);
 157 static TnyMimePartView *modest_msg_view_create_mime_part_view_for_default (TnyMsgView *self, TnyMimePart *part);
 158 static TnyMsgView *modest_msg_view_create_new_inline_viewer (TnyMsgView *self);
 159 static TnyMsgView *modest_msg_view_create_new_inline_viewer_default (TnyMsgView *self);
 160 /* ModestZoomable implementation */
 161 static gdouble modest_msg_view_get_zoom (ModestZoomable *self);
 162 static void modest_msg_view_set_zoom (ModestZoomable *self, gdouble value);
 163 static gboolean modest_msg_view_zoom_minus (ModestZoomable *self);
 164 static gboolean modest_msg_view_zoom_plus (ModestZoomable *self);
 165 static gdouble modest_msg_view_get_zoom_default (ModestZoomable *self);
 166 static void modest_msg_view_set_zoom_default (ModestZoomable *self, gdouble value);
 167 static gboolean modest_msg_view_zoom_minus_default (ModestZoomable *self);
 168 static gboolean modest_msg_view_zoom_plus_default (ModestZoomable *self);
 169 /* ModestISearchView implementation */
 170 static gboolean modest_msg_view_search (ModestISearchView *self, const gchar *string);
 171 static gboolean modest_msg_view_search_default (ModestISearchView *self, const gchar *string);
 172 static gboolean modest_msg_view_search_next (ModestISearchView *self);
 173 static gboolean modest_msg_view_search_next_default (ModestISearchView *self);
 174 /* ModestMsgView implementation */
 175 static GtkAdjustment *modest_gtkhtml_msg_view_get_vadjustment (ModestMsgView *self);
 176 static GtkAdjustment *modest_gtkhtml_msg_view_get_hadjustment (ModestMsgView *self);
 177 static void modest_gtkhtml_msg_view_set_vadjustment (ModestMsgView *self, GtkAdjustment *vadj);
 178 static void modest_gtkhtml_msg_view_set_hadjustment (ModestMsgView *self, GtkAdjustment *hadj);
 179 static void modest_gtkhtml_msg_view_set_shadow_type (ModestMsgView *self, GtkShadowType type);
 180 static GtkShadowType modest_gtkhtml_msg_view_get_shadow_type (ModestMsgView *self);
 181 static TnyHeaderFlags modest_gtkhtml_msg_view_get_priority (ModestMsgView *self);
 182 static void modest_gtkhtml_msg_view_set_priority (ModestMsgView *self, TnyHeaderFlags flags);
 183 static TnyList *modest_gtkhtml_msg_view_get_selected_attachments (ModestMsgView *self);
 184 static TnyList *modest_gtkhtml_msg_view_get_attachments (ModestMsgView *self);
 185 static void modest_gtkhtml_msg_view_grab_focus (ModestMsgView *self);
 186 static void modest_gtkhtml_msg_view_remove_attachment (ModestMsgView *view, TnyMimePart *attachment);
 187 static void modest_gtkhtml_msg_view_request_fetch_images (ModestMsgView *view);
 188 static gboolean modest_gtkhtml_msg_view_has_blocked_external_images (ModestMsgView *view);
 189 static GtkAdjustment *modest_gtkhtml_msg_view_get_vadjustment_default (ModestMsgView *self);
 190 static GtkAdjustment *modest_gtkhtml_msg_view_get_hadjustment_default (ModestMsgView *self);
 191 static void modest_gtkhtml_msg_view_set_vadjustment_default (ModestMsgView *self, GtkAdjustment *vadj);
 192 static void modest_gtkhtml_msg_view_set_hadjustment_default (ModestMsgView *self, GtkAdjustment *hadj);
 193 static void modest_gtkhtml_msg_view_set_shadow_type_default (ModestMsgView *self, GtkShadowType type);
 194 static GtkShadowType modest_gtkhtml_msg_view_get_shadow_type_default (ModestMsgView *self);
 195 static TnyHeaderFlags modest_gtkhtml_msg_view_get_priority_default (ModestMsgView *self);
 196 static void modest_gtkhtml_msg_view_set_priority_default (ModestMsgView *self, TnyHeaderFlags flags);
 197 static TnyList *modest_gtkhtml_msg_view_get_selected_attachments_default (ModestMsgView *self);
 198 static TnyList *modest_gtkhtml_msg_view_get_attachments_default (ModestMsgView *self);
 199 static void modest_gtkhtml_msg_view_grab_focus_default (ModestMsgView *self);
 200 static void modest_gtkhtml_msg_view_remove_attachment_default (ModestMsgView *view, TnyMimePart *attachment);
 201 static gboolean modest_gtkhtml_msg_view_has_blocked_external_images_default (ModestMsgView *view);
 202 static void modest_gtkhtml_msg_view_request_fetch_images_default (ModestMsgView *view);
 203
 204 /* internal api */
 205 static void     set_header     (ModestGtkhtmlMsgView *self, TnyHeader *header);
 206 static TnyMsg   *get_message   (ModestGtkhtmlMsgView *self);
 207 static void     set_message    (ModestGtkhtmlMsgView *self, TnyMsg *tny_msg);
 208 static gboolean is_empty       (ModestGtkhtmlMsgView *self);
 209 static void     set_zoom       (ModestGtkhtmlMsgView *self, gdouble zoom);
 210 static gdouble  get_zoom       (ModestGtkhtmlMsgView *self);
 211 static gboolean search         (ModestGtkhtmlMsgView *self, const gchar *search);
 212 static gboolean search_next    (ModestGtkhtmlMsgView *self);
 213 static GtkAdjustment *get_vadjustment (ModestGtkhtmlMsgView *self);
 214 static GtkAdjustment *get_hadjustment (ModestGtkhtmlMsgView *self);
 215 static void set_vadjustment (ModestGtkhtmlMsgView *self, GtkAdjustment *vadj);
 216 static void set_hadjustment (ModestGtkhtmlMsgView *self, GtkAdjustment *hadj);
 217 static void set_shadow_type (ModestGtkhtmlMsgView *self, GtkShadowType type);
 218 static GtkShadowType get_shadow_type (ModestGtkhtmlMsgView *self);
 219 static TnyHeaderFlags get_priority (ModestGtkhtmlMsgView *self);
 220 static void set_priority (ModestGtkhtmlMsgView *self, TnyHeaderFlags flags);
 221 static TnyList *get_selected_attachments (ModestGtkhtmlMsgView *self);
 222 static TnyList *get_attachments (ModestGtkhtmlMsgView *self);
 223 static void grab_focus (ModestGtkhtmlMsgView *self);
 224 static void remove_attachment (ModestGtkhtmlMsgView *view, TnyMimePart *attachment);
 225 static void request_fetch_images (ModestGtkhtmlMsgView *view);
 226 static gboolean has_blocked_external_images (ModestGtkhtmlMsgView *view);
 227
 228 /* list properties */
 229 enum {
 230         PROP_0,
 231         PROP_HADJUSTMENT,
 232         PROP_VADJUSTMENT,
 233         PROP_SHADOW_TYPE
 234 };
 235
 236 typedef struct _ModestGtkhtmlMsgViewPrivate ModestGtkhtmlMsgViewPrivate;
 237 struct _ModestGtkhtmlMsgViewPrivate {
 238         GtkWidget   *body_view;
 239         GtkWidget   *mail_header_view;
 240         GtkWidget   *attachments_view;
 241         GtkWidget   *priority_icon;
 242
 243         TnyMsg      *msg;
 244
 245         /* embedded elements */
 246         GtkWidget   *headers_box;
 247         GtkWidget   *priority_box;
 248         GtkWidget   *html_scroll;
 249         GtkWidget   *attachments_box;
 250
 251         /* internal adjustments for set_scroll_adjustments */
 252         GtkAdjustment *hadj;
 253         GtkAdjustment *vadj;
 254         GtkShadowType shadow_type;
 255
 256         /* gdk windows for drawing */
 257         GdkWindow *view_window;
 258         GdkWindow *headers_window;
 259         GdkWindow *html_window;
 260
 261         /* id handler for dragged scroll */
 262         guint idle_motion_id;
 263
 264         /* zoom */
 265         gdouble current_zoom;
 266
 267         /* link click management */
 268         gchar *last_url;
 269 };
 270
 271 #define MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
 272                                                                                  MODEST_TYPE_GTKHTML_MSG_VIEW, \
 273                                                                                  ModestGtkhtmlMsgViewPrivate))
 274
 275 /* globals */
 276 static GtkContainerClass *parent_class = NULL;
 277
 278 GType
 279 modest_gtkhtml_msg_view_get_type (void)
 280 {
 281         static GType my_type = 0;
 282         if (!my_type) {
 283                 static const GTypeInfo my_info = {
 284                         sizeof(ModestGtkhtmlMsgViewClass),
 285                         NULL,           /* base init */
 286                         NULL,           /* base finalize */
 287                         (GClassInitFunc) modest_gtkhtml_msg_view_class_init,
 288                         NULL,           /* class finalize */
 289                         NULL,           /* class data */
 290                         sizeof(ModestGtkhtmlMsgView),
 291                         1,              /* n_preallocs */
 292                         (GInstanceInitFunc) modest_gtkhtml_msg_view_init,
 293                         NULL
 294                 };
 295                 static const GInterfaceInfo tny_msg_view_info =
 296                 {
 297                   (GInterfaceInitFunc) tny_msg_view_init, /* interface_init */
 298                   NULL,         /* interface_finalize */
 299                   NULL          /* interface_data */
 300                 };
 301
 302                 static const GInterfaceInfo tny_mime_part_view_info =
 303                 {
 304                   (GInterfaceInitFunc) tny_mime_part_view_init, /* interface_init */
 305                   NULL,         /* interface_finalize */
 306                   NULL          /* interface_data */
 307                 };
 308
 309                 static const GInterfaceInfo tny_header_view_info =
 310                 {
 311                   (GInterfaceInitFunc) tny_header_view_init, /* interface_init */
 312                   NULL,         /* interface_finalize */
 313                   NULL          /* interface_data */
 314                 };
 315
 316                 static const GInterfaceInfo modest_mime_part_view_info =
 317                 {
 318                   (GInterfaceInitFunc) modest_mime_part_view_init, /* interface_init */
 319                   NULL,         /* interface_finalize */
 320                   NULL          /* interface_data */
 321                 };
 322
 323                 static const GInterfaceInfo modest_zoomable_info =
 324                 {
 325                   (GInterfaceInitFunc) modest_zoomable_init, /* interface_init */
 326                   NULL,         /* interface_finalize */
 327                   NULL          /* interface_data */
 328                 };
 329
 330                 static const GInterfaceInfo modest_isearch_view_info =
 331                 {
 332                   (GInterfaceInitFunc) modest_isearch_view_init, /* interface_init */
 333                   NULL,         /* interface_finalize */
 334                   NULL          /* interface_data */
 335                 };
 336
 337                 static const GInterfaceInfo modest_msg_view_info =
 338                 {
 339                   (GInterfaceInitFunc) modest_msg_view_init, /* interface_init */
 340                   NULL,         /* interface_finalize */
 341                   NULL          /* interface_data */
 342                 };
 343
 344                 my_type = g_type_register_static (GTK_TYPE_CONTAINER,
 345                                                   "ModestGtkhtmlMsgView",
 346                                                   &my_info, 0);
 347
 348                 g_type_add_interface_static (my_type, TNY_TYPE_HEADER_VIEW,
 349                         &tny_header_view_info);
 350
 351                 g_type_add_interface_static (my_type, TNY_TYPE_MIME_PART_VIEW,
 352                         &tny_mime_part_view_info);
 353
 354                 g_type_add_interface_static (my_type, MODEST_TYPE_MIME_PART_VIEW,
 355                         &modest_mime_part_view_info);
 356
 357                 g_type_add_interface_static (my_type, TNY_TYPE_MSG_VIEW,
 358                         &tny_msg_view_info);
 359
 360                 g_type_add_interface_static (my_type, MODEST_TYPE_ZOOMABLE,
 361                         &modest_zoomable_info);
 362
 363                 g_type_add_interface_static (my_type, MODEST_TYPE_ISEARCH_VIEW,
 364                         &modest_isearch_view_info);
 365
 366                 g_type_add_interface_static (my_type, MODEST_TYPE_MSG_VIEW,
 367                         &modest_msg_view_info);
 368         }
 369         return my_type;
 370 }
 371
 372 static void
 373 modest_gtkhtml_msg_view_class_init (ModestGtkhtmlMsgViewClass *klass)
 374 {
 375         GObjectClass *gobject_class;
 376         GtkWidgetClass *widget_class;
 377         GtkObjectClass *gtkobject_class;
 378         GtkContainerClass *container_class;
 379         gobject_class = (GObjectClass*) klass;
 380         widget_class = (GtkWidgetClass *) klass;
 381         gtkobject_class = (GtkObjectClass *) klass;
 382         container_class = (GtkContainerClass *) klass;
 383
 384         parent_class            = g_type_class_peek_parent (klass);
 385         gobject_class->finalize = modest_gtkhtml_msg_view_finalize;
 386         gobject_class->set_property = set_property;
 387         gobject_class->get_property = get_property;
 388         gtkobject_class->destroy = modest_gtkhtml_msg_view_destroy;
 389
 390         widget_class->realize = realize;
 391         widget_class->unrealize = unrealize;
 392         widget_class->expose_event = expose;
 393         widget_class->size_request = size_request;
 394         widget_class->size_allocate = size_allocate;
 395
 396         container_class->forall = forall;
 397         container_class->remove = container_remove;
 398
 399         klass->set_header_func = modest_msg_view_set_header_default;
 400         klass->clear_header_func = modest_msg_view_clear_header_default;
 401         klass->set_scroll_adjustments = set_scroll_adjustments;
 402         klass->get_part_func = modest_msg_view_mp_get_part_default;
 403         klass->set_part_func = modest_msg_view_mp_set_part_default;
 404         klass->is_empty_func = modest_msg_view_mp_is_empty_default;
 405         klass->get_msg_func = modest_msg_view_get_msg_default;
 406         klass->set_msg_func = modest_msg_view_set_msg_default;
 407         klass->set_unavailable_func = modest_msg_view_set_unavailable_default;
 408         klass->clear_func = modest_msg_view_clear_default;
 409         klass->create_mime_part_view_for_func = modest_msg_view_create_mime_part_view_for_default;
 410         klass->create_new_inline_viewer_func = modest_msg_view_create_new_inline_viewer_default;
 411         klass->get_zoom_func = modest_msg_view_get_zoom_default;
 412         klass->set_zoom_func = modest_msg_view_set_zoom_default;
 413         klass->zoom_minus_func = modest_msg_view_zoom_minus_default;
 414         klass->zoom_plus_func = modest_msg_view_zoom_plus_default;
 415         klass->search_func = modest_msg_view_search_default;
 416         klass->search_next_func = modest_msg_view_search_next_default;
 417         klass->get_vadjustment_func = modest_gtkhtml_msg_view_get_vadjustment_default;
 418         klass->get_hadjustment_func = modest_gtkhtml_msg_view_get_hadjustment_default;
 419         klass->set_vadjustment_func = modest_gtkhtml_msg_view_set_vadjustment_default;
 420         klass->set_hadjustment_func = modest_gtkhtml_msg_view_set_hadjustment_default;
 421         klass->get_shadow_type_func = modest_gtkhtml_msg_view_get_shadow_type_default;
 422         klass->set_shadow_type_func = modest_gtkhtml_msg_view_set_shadow_type_default;
 423         klass->get_priority_func = modest_gtkhtml_msg_view_get_priority_default;
 424         klass->set_priority_func = modest_gtkhtml_msg_view_set_priority_default;
 425         klass->get_selected_attachments_func = modest_gtkhtml_msg_view_get_selected_attachments_default;
 426         klass->get_attachments_func = modest_gtkhtml_msg_view_get_attachments_default;
 427         klass->grab_focus_func = modest_gtkhtml_msg_view_grab_focus_default;
 428         klass->remove_attachment_func = modest_gtkhtml_msg_view_remove_attachment_default;
 429         klass->request_fetch_images_func = modest_gtkhtml_msg_view_request_fetch_images_default;
 430         klass->has_blocked_external_images_func = modest_gtkhtml_msg_view_has_blocked_external_images_default;
 431
 432         g_type_class_add_private (gobject_class, sizeof(ModestGtkhtmlMsgViewPrivate));
 433
 434         g_object_class_install_property (gobject_class,
 435                                          PROP_HADJUSTMENT,
 436                                          g_param_spec_object ("hadjustment",
 437                                                               _("Horizontal adjustment"),
 438                                                               _("GtkAdjustment with information of the horizontal visible position"),
 439                                                               GTK_TYPE_ADJUSTMENT,
 440                                                               G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
 441
 442         g_object_class_install_property (gobject_class,
 443                                          PROP_VADJUSTMENT,
 444                                          g_param_spec_object ("vadjustment",
 445                                                               _("Vertical adjustment"),
 446                                                               _("GtkAdjustment with information of the vertical visible position"),
 447                                                               GTK_TYPE_ADJUSTMENT,
 448                                                               G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
 449
 450         g_object_class_install_property (gobject_class,
 451                                          PROP_SHADOW_TYPE,
 452                                          g_param_spec_enum ("shadow_type",
 453                                                             _("Shadow type"),
 454                                                             _("Kind of shadow that's shown around the view"),
 455                                                             GTK_TYPE_SHADOW_TYPE,
 456                                                             GTK_SHADOW_IN,
 457                                                             G_PARAM_READABLE | G_PARAM_WRITABLE ));
 458
 459         widget_class->set_scroll_adjustments_signal =
 460                 g_signal_new ("set_scroll_adjustments",
 461                               G_OBJECT_CLASS_TYPE (gobject_class),
 462                               G_SIGNAL_RUN_LAST|G_SIGNAL_ACTION,
 463                               G_STRUCT_OFFSET (ModestGtkhtmlMsgViewClass, set_scroll_adjustments),
 464                               NULL, NULL,
 465                               modest_marshal_VOID__POINTER_POINTER,
 466                               G_TYPE_NONE, 2,
 467                               GTK_TYPE_ADJUSTMENT,
 468                               GTK_TYPE_ADJUSTMENT);
 469 }
 470
 471 static void
 472 set_property (GObject *object,
 473               guint prop_id,
 474               const GValue *value,
 475               GParamSpec *pspec)
 476 {
 477         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (object);
 478
 479         switch (prop_id) {
 480         case PROP_HADJUSTMENT:
 481                 set_hadjustment (self, g_value_get_object (value));
 482                 break;
 483         case PROP_VADJUSTMENT:
 484                 set_vadjustment (self, g_value_get_object (value));
 485                 break;
 486         case PROP_SHADOW_TYPE:
 487                 set_shadow_type (self, g_value_get_enum (value));
 488                 break;
 489         default:
 490                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 491                 break;
 492         }
 493 }
 494
 495 static void
 496 get_property (GObject *object,
 497               guint prop_id,
 498               GValue *value,
 499               GParamSpec *pspec)
 500 {
 501         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (object);
 502         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 503
 504         switch (prop_id) {
 505         case PROP_HADJUSTMENT:
 506                 g_value_set_object (value, priv->hadj);
 507                 break;
 508         case PROP_VADJUSTMENT:
 509                 g_value_set_object (value, priv->vadj);
 510                 break;
 511         case PROP_SHADOW_TYPE:
 512                 g_value_set_enum (value, priv->shadow_type);
 513                 break;
 514         default:
 515                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 516                 break;
 517         }
 518 }
 519
 520 static void
 521 disconnect_hadjustment (ModestGtkhtmlMsgView *self)
 522 {
 523         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 524
 525         if (priv->hadj) {
 526                 g_signal_handlers_disconnect_by_func(priv->hadj, adjustment_value_changed, self);
 527                 g_object_unref (priv->hadj);
 528                 priv->hadj = NULL;
 529         }
 530 }
 531
 532 static void
 533 disconnect_vadjustment (ModestGtkhtmlMsgView *self)
 534 {
 535         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 536
 537         if (priv->vadj) {
 538                 g_signal_handlers_disconnect_by_func(priv->vadj, adjustment_value_changed, self);
 539                 g_object_unref (priv->vadj);
 540                 priv->vadj = NULL;
 541         }
 542 }
 543
 544 static void
 545 get_view_allocation (ModestGtkhtmlMsgView *self, GtkAllocation *allocation)
 546 {
 547         /* This method gets the allocation of the widget in parent widget. It's the
 548            real position and size of the widget */
 549         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 550
 551         allocation->x = 0;
 552         allocation->y = 0;
 553
 554         if (priv->shadow_type != GTK_SHADOW_NONE) {
 555                 allocation->x = GTK_WIDGET (self)->style->xthickness;
 556                 allocation->y = GTK_WIDGET (self)->style->ythickness;
 557         }
 558
 559         allocation->width = MAX (1, (GTK_WIDGET (self)->allocation.width) - allocation->x * 2);
 560         allocation->height = MAX (1, (GTK_WIDGET (self)->allocation.height) - allocation->y * 2);
 561
 562 }
 563
 564 static void
 565 reclamp_adjustment (GtkAdjustment *adj,
 566                     gboolean *value_changed)
 567 {
 568         gdouble value = adj->value;
 569
 570         /* Correct value to be inside the expected values of a scroll */
 571
 572         value = CLAMP (value, 0, adj->upper - adj->page_size);
 573
 574         if (value != adj->value) {
 575                 adj->value = value;
 576                 if (value_changed)
 577                         *value_changed = TRUE;
 578         } else if (value_changed) {
 579                 *value_changed = FALSE;
 580         }
 581 }
 582
 583 static void
 584 set_hadjustment_values (ModestGtkhtmlMsgView *self,
 585                         gboolean *value_changed)
 586 {
 587         GtkAllocation view_allocation;
 588         GtkAdjustment *hadj = get_hadjustment (self);
 589
 590         get_view_allocation (self, &view_allocation);
 591         hadj->page_size = view_allocation.width;
 592         hadj->step_increment = view_allocation.width * 0.1;
 593         hadj->page_increment = view_allocation.width * 0.9;
 594
 595         hadj->lower = 0;
 596         hadj->upper = view_allocation.width;
 597
 598         reclamp_adjustment (hadj, value_changed);
 599
 600 }
 601
 602 static void
 603 set_vadjustment_values (ModestGtkhtmlMsgView *self,
 604                         gboolean *value_changed)
 605 {
 606         GtkAllocation view_allocation;
 607         GtkAdjustment *vadj = get_vadjustment (self);
 608         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 609         gint full_height = 0;
 610         GtkAdjustment *html_vadj;
 611
 612         get_view_allocation (self, &view_allocation);
 613         vadj->page_size = view_allocation.height;
 614         vadj->step_increment = view_allocation.height * 0.1;
 615         vadj->page_increment = view_allocation.height * 0.9;
 616
 617         vadj->lower = 0;
 618
 619         if (priv->headers_box && GTK_WIDGET_VISIBLE(priv->headers_box)) {
 620                 GtkRequisition child_requisition;
 621
 622                 gtk_widget_get_child_requisition (priv->headers_box, &child_requisition);
 623                 full_height = child_requisition.height;
 624         } else {
 625                 full_height = 0;
 626         }
 627
 628         /* Get the real height of the embedded html */
 629         if (priv->html_scroll && GTK_WIDGET_VISIBLE(priv->html_scroll)) {
 630                 html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
 631                 full_height += html_vadj->upper;
 632         }
 633
 634         vadj->upper = MAX (view_allocation.height, full_height);
 635
 636         reclamp_adjustment (vadj, value_changed);
 637
 638 }
 639
 640 static void
 641 set_scroll_adjustments (ModestGtkhtmlMsgView *self,
 642                         GtkAdjustment *hadj,
 643                         GtkAdjustment *vadj)
 644 {
 645         set_hadjustment (self, hadj);
 646         set_vadjustment (self, vadj);
 647
 648 #ifndef MODEST_TOOLKIT_HILDON2
 649         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 650         gtk_container_set_focus_vadjustment (GTK_CONTAINER (priv->body_view), vadj);
 651 #endif
 652 }
 653
 654 static void
 655 realize (GtkWidget *widget)
 656 {
 657         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (widget);
 658         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 659         GtkAdjustment *hadj = get_hadjustment (self);
 660         GtkAdjustment *vadj = get_vadjustment (self);
 661         GdkWindowAttr attributes;
 662         gint event_mask;
 663         gint attributes_mask;
 664         GtkAllocation view_allocation;
 665
 666         GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 667
 668         /* The structure of the GdkWindow's is:
 669          *    * widget->window: the shown gdkwindow embedding all the stuff inside
 670          *    * view_window: a backing store gdkwindow containing the headers and contents
 671          *      being scrolled. This window should have all the visible and non visible
 672          *      widgets inside.
 673          *    * headers_window: gdk window for headers_box.
 674          *    * html_window: gdk window for html_scroll (the scrolled window containing the
 675          *      body view showing the contents of the mail).
 676          */
 677
 678         attributes.x = widget->allocation.x;
 679         attributes.y = widget->allocation.y;
 680         attributes.width = widget->allocation.width;
 681         attributes.height = widget->allocation.height;
 682         attributes.window_type = GDK_WINDOW_CHILD;
 683         attributes.wclass = GDK_INPUT_OUTPUT;
 684         attributes.visual = gtk_widget_get_visual (widget);
 685         attributes.colormap = gtk_widget_get_colormap (widget);
 686
 687         event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
 688         attributes.event_mask = event_mask | GDK_BUTTON_PRESS_MASK;
 689         attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
 690
 691         widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
 692                                          &attributes, attributes_mask);
 693         gdk_window_set_user_data (widget->window, self);
 694
 695         get_view_allocation (self, &view_allocation);
 696
 697         attributes.x = view_allocation.x;
 698         attributes.y = view_allocation.y;
 699         attributes.width = view_allocation.width;
 700         attributes.height = view_allocation.height;
 701         attributes.event_mask = 0;
 702         priv->view_window = gdk_window_new (widget->window, &attributes, attributes_mask);
 703         gdk_window_set_user_data (priv->view_window, self);
 704         gdk_window_set_back_pixmap (priv->view_window, NULL, FALSE);
 705
 706         attributes.x = -hadj->value;
 707         attributes.y = -vadj->value;
 708         attributes.width = hadj->upper;
 709         if (priv->headers_box)
 710                 attributes.height = GTK_WIDGET (priv->headers_box)->allocation.height;
 711         else
 712                 attributes.height = 1;
 713         attributes.event_mask = event_mask;
 714
 715         priv->headers_window = gdk_window_new (priv->view_window, &attributes, attributes_mask);
 716         gdk_window_set_user_data (priv->headers_window, self);
 717
 718         if (priv->headers_box)
 719                 gtk_widget_set_parent_window (priv->headers_box, priv->headers_window);
 720
 721         attributes.x = -hadj->value;
 722         if (priv->headers_box)
 723                 attributes.y = GTK_WIDGET (priv->headers_box)->allocation.height - vadj->value;
 724         else
 725                 attributes.y = -vadj->value;
 726         attributes.width = hadj->upper;
 727         if (priv->headers_box)
 728                 attributes.height = vadj->upper - GTK_WIDGET (priv->headers_box)->allocation.height;
 729         else
 730                 attributes.height = vadj->upper;
 731         attributes.event_mask = event_mask;
 732
 733         priv->html_window = gdk_window_new (priv->view_window, &attributes, attributes_mask);
 734         gdk_window_set_user_data (priv->html_window, self);
 735
 736         if (priv->html_scroll)
 737                 gtk_widget_set_parent_window (priv->html_scroll, priv->html_window);
 738
 739         widget->style = gtk_style_attach (widget->style, widget->window);
 740         gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
 741         gtk_style_set_background (widget->style, priv->headers_window, GTK_STATE_NORMAL);
 742         gtk_style_set_background (widget->style, priv->html_window, GTK_STATE_NORMAL);
 743
 744         gtk_paint_flat_box(widget->style, priv->headers_window, GTK_STATE_NORMAL,
 745                            GTK_SHADOW_NONE,
 746                            NULL, widget, "msgviewheaders",
 747                            0,0,-1,-1);
 748         gtk_paint_flat_box(widget->style, priv->html_window, GTK_STATE_NORMAL,
 749                            GTK_SHADOW_NONE,
 750                            NULL, widget, "msgviewcontents",
 751                            0,0,-1,-1);
 752
 753         gdk_window_show (priv->view_window);
 754         gdk_window_show (priv->headers_window);
 755         gdk_window_show (priv->html_window);
 756
 757 }
 758
 759 static void
 760 unrealize (GtkWidget *widget)
 761 {
 762         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (widget);
 763         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 764
 765         gdk_window_set_user_data (priv->view_window, NULL);
 766         gdk_window_destroy (priv->view_window);
 767         priv->view_window = NULL;
 768
 769         gdk_window_set_user_data (priv->headers_window, NULL);
 770         gdk_window_destroy (priv->headers_window);
 771         priv->headers_window = NULL;
 772
 773         gdk_window_set_user_data (priv->html_window, NULL);
 774         gdk_window_destroy (priv->html_window);
 775         priv->html_window = NULL;
 776
 777         if (GTK_WIDGET_CLASS (parent_class)->unrealize)
 778                 ( * GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
 779
 780 }
 781
 782 static gint
 783 expose (GtkWidget *widget,
 784         GdkEventExpose *event)
 785 {
 786         ModestGtkhtmlMsgView *self;
 787         ModestGtkhtmlMsgViewPrivate *priv;
 788
 789         if (GTK_WIDGET_DRAWABLE (widget)) {
 790                 self = MODEST_GTKHTML_MSG_VIEW (widget);
 791                 priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 792                 if (event->window == widget->window) {
 793                         gtk_paint_shadow (widget->style, widget->window,
 794                                           GTK_STATE_NORMAL, priv->shadow_type,
 795                                           &event->area, widget, "msgview",
 796                                           0,0,-1,-1);
 797                 } else if (event->window == priv->headers_window) {
 798                         gtk_paint_flat_box(widget->style, priv->headers_window, GTK_STATE_NORMAL,
 799                                            GTK_SHADOW_NONE,
 800                                            &event->area, widget, "msgviewheaders",
 801                                            0,0,-1,-1);
 802                 } else if (event->window == priv->html_window) {
 803                         gtk_paint_flat_box(widget->style, priv->html_window, GTK_STATE_NORMAL,
 804                                            GTK_SHADOW_NONE,
 805                                            &event->area, widget, "msgviewcontents",
 806                                            0,0,-1,-1);
 807                 }
 808                 if (priv->headers_box)
 809                         gtk_container_propagate_expose (GTK_CONTAINER (self), priv->headers_box, event);
 810                 if (priv->html_scroll)
 811                         gtk_container_propagate_expose (GTK_CONTAINER (self), priv->html_scroll, event);
 812                 (* GTK_WIDGET_CLASS (parent_class)->expose_event) (widget, event);
 813         }
 814
 815         return FALSE;
 816 }
 817
 818 static void
 819 forall (GtkContainer *container,
 820         gboolean include_internals,
 821         GtkCallback callback,
 822         gpointer userdata)
 823 {
 824         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (container);
 825         g_return_if_fail (callback != NULL);
 826
 827         if (priv->headers_box)
 828                 (*callback) (priv->headers_box, userdata);
 829         if (priv->html_scroll)
 830                 (*callback) (priv->html_scroll, userdata);
 831 }
 832
 833 static void
 834 container_remove (GtkContainer *container,
 835                   GtkWidget *widget)
 836 {
 837         gboolean was_visible = FALSE;
 838         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (container);
 839         was_visible = GTK_WIDGET_VISIBLE (widget);
 840         if (widget == priv->headers_box) {
 841                 gtk_widget_unparent (priv->headers_box);
 842                 priv->headers_box = NULL;
 843         } else if (widget == priv->html_scroll) {
 844                 gtk_widget_unparent (priv->html_scroll);
 845                 priv->html_scroll = NULL;
 846         } else {
 847                 return;
 848         }
 849         if (was_visible)
 850                 gtk_widget_queue_resize (GTK_WIDGET(container));
 851
 852 }
 853
 854 static void
 855 size_request (GtkWidget *widget,
 856               GtkRequisition *req)
 857 {
 858         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (widget);
 859         GtkRequisition child_req;
 860
 861         req->width = 0;
 862         req->height = 0;
 863
 864         gtk_widget_size_request (priv->headers_box, &child_req);
 865         req->width = child_req.width;
 866         req->height += child_req.height;
 867         gtk_widget_size_request (priv->html_scroll, &child_req);
 868         req->width = MAX (child_req.width, req->width);
 869         req->height += child_req.height;
 870
 871 }
 872
 873 static void
 874 size_allocate (GtkWidget *widget,
 875                GtkAllocation *allocation)
 876 {
 877         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (widget);
 878         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 879         gboolean hadj_value_changed, vadj_value_changed;
 880         GtkAllocation headers_allocation, html_allocation, view_allocation;
 881         GtkAdjustment *html_vadj;
 882
 883         if (GTK_WIDGET_MAPPED (widget) &&
 884             priv->shadow_type != GTK_SHADOW_NONE &&
 885             (allocation->width != widget->allocation.width ||
 886              allocation->height != widget->allocation.height))
 887                 gdk_window_invalidate_rect (widget->window, NULL, FALSE);
 888
 889         widget->allocation = *allocation;
 890         set_hadjustment_values (self, &hadj_value_changed);
 891         set_vadjustment_values (self, &vadj_value_changed);
 892
 893         get_view_allocation (self, &view_allocation);
 894
 895         headers_allocation.x = 0;
 896         headers_allocation.y = 0;
 897         headers_allocation.width = view_allocation.width;
 898         if (priv->headers_box)
 899                 headers_allocation.height = GTK_WIDGET (priv->headers_box)->requisition.height;
 900         else
 901                 headers_allocation.height = 0;
 902
 903         html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
 904
 905         html_allocation.x = 0;
 906         html_allocation.y = headers_allocation.height;
 907         html_allocation.width = view_allocation.width;
 908         html_allocation.height = MAX ((gint) html_vadj->upper, (gint)(priv->vadj->upper - headers_allocation.height));
 909
 910         if (GTK_WIDGET_REALIZED (widget)) {
 911                 gdk_window_move_resize (widget->window,
 912                                         allocation->x,
 913                                         allocation->y,
 914                                         allocation->width,
 915                                         allocation->height);
 916
 917                 gdk_window_move_resize (priv->view_window,
 918                                         view_allocation.x,
 919                                         view_allocation.y,
 920                                         view_allocation.width,
 921                                         view_allocation.height);
 922                 gdk_window_move_resize (priv->headers_window,
 923                                         0,
 924                                         (gint) (- priv->vadj->value),
 925                                         allocation->width,
 926                                         headers_allocation.height);
 927                 gdk_window_move_resize (priv->html_window,
 928                                         (gint) (- priv->hadj->value),
 929                                         (gint) (html_allocation.y - priv->vadj->value),
 930                                         (gint) priv->hadj->upper,
 931                                         html_allocation.height);
 932         }
 933
 934         if (priv->headers_box && GTK_WIDGET_VISIBLE (priv->headers_box)) {
 935                 gtk_widget_size_allocate (priv->headers_box, &headers_allocation);
 936         }
 937         if (priv->html_scroll && GTK_WIDGET_VISIBLE (priv->html_scroll)) {
 938                 html_allocation.x = 0;
 939                 html_allocation.y = 0;
 940                 html_allocation.width = (gint) priv->hadj->upper;
 941                 html_allocation.height = (gint) priv->vadj->upper - headers_allocation.height;
 942                 gtk_widget_size_allocate (priv->html_scroll, &html_allocation);
 943         }
 944         gtk_adjustment_changed (priv->hadj);
 945         gtk_adjustment_changed (priv->vadj);
 946
 947         if (hadj_value_changed)
 948                 gtk_adjustment_value_changed (priv->hadj);
 949         if (vadj_value_changed)
 950                 gtk_adjustment_value_changed (priv->vadj);
 951
 952 }
 953
 954 static void
 955 adjustment_value_changed (GtkAdjustment *adj, gpointer data)
 956 {
 957         ModestGtkhtmlMsgView *self = NULL;
 958         ModestGtkhtmlMsgViewPrivate *priv = NULL;
 959
 960         g_return_if_fail (GTK_IS_ADJUSTMENT (adj));
 961         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (data));
 962
 963         self = MODEST_GTKHTML_MSG_VIEW (data);
 964         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 965
 966         if (GTK_WIDGET_REALIZED (self)) {
 967                 GtkAdjustment *hadj = get_hadjustment (self);
 968                 GtkAdjustment *vadj = get_vadjustment (self);
 969                 gint headers_offset = 0;
 970
 971                 gtk_widget_queue_resize (priv->html_scroll);
 972
 973                 if (priv->headers_box && GTK_WIDGET_VISIBLE (priv->headers_box)) {
 974                         gint old_x, old_y;
 975                         gint new_x, new_y;
 976                         gdk_window_get_position (priv->headers_window, &old_x, &old_y);
 977                         new_x = 0;
 978                         new_y = -vadj->value;
 979
 980                         headers_offset = GTK_WIDGET(priv->headers_box)->allocation.height;
 981
 982                         if (new_x != old_x || new_y != old_y) {
 983                                 gdk_window_move (priv->headers_window, new_x, new_y);
 984                                 gdk_window_process_updates (priv->headers_window, TRUE);
 985                         }
 986                 }
 987
 988                 if (priv->html_scroll && GTK_WIDGET_VISIBLE (priv->html_scroll)) {
 989                         gint old_x, old_y;
 990                         gint new_x, new_y;
 991                         gdk_window_get_position (priv->html_window, &old_x, &old_y);
 992                         new_x = -hadj->value;
 993                         new_y = headers_offset - vadj->value;
 994
 995                         if (new_x != old_x || new_y != old_y) {
 996                                 gdk_window_move (priv->html_window, new_x, new_y);
 997                                 gdk_window_process_updates (priv->html_window, TRUE);
 998                         }
 999                 }
1000
1001         }
1002 }
1003
1004 static void
1005 html_adjustment_changed (GtkAdjustment *adj,
1006                          gpointer userdata)
1007 {
1008         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (userdata);
1009         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1010         GtkAdjustment *html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW(priv->html_scroll));
1011         gboolean vadj_changed;
1012         gint new_height;
1013
1014         g_signal_stop_emission_by_name (G_OBJECT (adj), "changed");
1015
1016         priv->html_scroll->requisition.height = html_vadj->upper;
1017         if (html_vadj->upper == priv->html_scroll->allocation.height)
1018                 return;
1019         priv->html_scroll->allocation.height = html_vadj->upper;
1020
1021         set_vadjustment_values (self, &vadj_changed);
1022
1023         new_height = MAX ((gint) html_vadj->upper, (gint) (priv->vadj->upper - priv->headers_box->allocation.height));
1024
1025         gtk_adjustment_changed (priv->vadj);
1026         if (GTK_WIDGET_DRAWABLE (priv->html_scroll)) {
1027                 gdk_window_resize (priv->html_window, (gint) priv->hadj->upper, (gint) new_height);
1028                 gdk_window_process_updates (priv->view_window, TRUE);
1029                 gtk_container_resize_children (GTK_CONTAINER (self));
1030         }
1031
1032 }
1033
1034 gboolean
1035 idle_readjust_scroll (ModestGtkhtmlMsgView *self)
1036 {
1037
1038         /* We're out the main lock */
1039         gdk_threads_enter ();
1040
1041         if (GTK_WIDGET_DRAWABLE (self)) {
1042                 ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1043                 GtkAdjustment *html_vadj;
1044                 html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
1045                 html_vadj->page_size = html_vadj->upper;
1046                 gtk_adjustment_changed (html_vadj);
1047                 gtk_widget_queue_resize (GTK_WIDGET (self));
1048                 gtk_widget_queue_draw (GTK_WIDGET (self));
1049
1050                 /* Just another hack for making readjust really work. This forces an update
1051                  * of the scroll, and then, make the scroll really update properly the
1052                  * the size and not corrupt scrollable area */
1053                 gtk_adjustment_set_value (priv->vadj, 1.0);
1054                 gtk_adjustment_set_value (priv->vadj, 0.0);
1055         }
1056         g_object_unref (G_OBJECT (self));
1057
1058         gdk_threads_leave ();
1059
1060         return FALSE;
1061 }
1062
1063 static void
1064 modest_gtkhtml_msg_view_init (ModestGtkhtmlMsgView *obj)
1065 {
1066         ModestGtkhtmlMsgViewPrivate *priv;
1067         GtkAdjustment *html_vadj;
1068         GtkWidget *separator;
1069
1070         GTK_WIDGET_UNSET_FLAGS (obj, GTK_NO_WINDOW);
1071         gtk_widget_set_redraw_on_allocate (GTK_WIDGET (obj), TRUE);
1072         gtk_container_set_reallocate_redraws (GTK_CONTAINER (obj), TRUE);
1073         gtk_container_set_resize_mode (GTK_CONTAINER (obj), GTK_RESIZE_QUEUE);
1074
1075         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE(obj);
1076
1077         priv->current_zoom = 1.0;
1078
1079         priv->hadj = NULL;
1080         priv->vadj = NULL;
1081         priv->shadow_type = GTK_SHADOW_IN;
1082         priv->view_window = NULL;
1083         priv->headers_window = NULL;
1084         priv->html_window = NULL;
1085
1086         priv->idle_motion_id = 0;
1087
1088         gtk_widget_push_composite_child ();
1089         priv->html_scroll = gtk_scrolled_window_new (NULL, NULL);
1090         gtk_widget_set_composite_name (priv->html_scroll, "contents");
1091         gtk_widget_pop_composite_child ();
1092         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->html_scroll), GTK_POLICY_NEVER, GTK_POLICY_NEVER);
1093
1094         priv->msg                     = NULL;
1095
1096         priv->body_view                 = GTK_WIDGET (g_object_new (MODEST_TYPE_GTKHTML_MIME_PART_VIEW, NULL));
1097 #ifdef MODEST_TOOLKIT_HILDON2
1098         priv->mail_header_view        = GTK_WIDGET(modest_compact_mail_header_view_new ());
1099 #else
1100         priv->mail_header_view        = GTK_WIDGET(modest_expander_mail_header_view_new (TRUE));
1101 #endif
1102         gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
1103         priv->attachments_view        = GTK_WIDGET(modest_attachments_view_new (NULL));
1104 #ifdef MODEST_TOOLKIT_HILDON2
1105         modest_attachments_view_set_style (MODEST_ATTACHMENTS_VIEW (priv->attachments_view),
1106                                            MODEST_ATTACHMENTS_VIEW_STYLE_LINKS);
1107 #else
1108         modest_attachments_view_set_style (MODEST_ATTACHMENTS_VIEW (priv->attachments_view),
1109                                            MODEST_ATTACHMENTS_VIEW_STYLE_SELECTABLE);
1110 #endif
1111
1112         g_signal_connect (G_OBJECT(priv->body_view), "activate_link",
1113                                        G_CALLBACK(on_activate_link), obj);
1114         g_signal_connect (G_OBJECT(priv->body_view), "fetch_url",
1115                                        G_CALLBACK(on_fetch_url), obj);
1116         g_signal_connect (G_OBJECT(priv->body_view), "link_hover",
1117                                        G_CALLBACK(on_link_hover), obj);
1118 #ifdef MAEMO_CHANGES
1119         g_signal_connect (G_OBJECT(priv->body_view), "motion-notify-event",
1120                           G_CALLBACK (motion_notify_event), obj);
1121 #endif
1122         g_signal_connect (G_OBJECT (priv->body_view), "button-press-event",
1123                           G_CALLBACK (button_press_event), obj);
1124         g_signal_connect (G_OBJECT (priv->body_view), "button-release-event",
1125                           G_CALLBACK (button_release_event), obj);
1126
1127         g_signal_connect (G_OBJECT (priv->mail_header_view), "recpt-activated",
1128                           G_CALLBACK (on_recpt_activated), obj);
1129         g_signal_connect (G_OBJECT (priv->mail_header_view), "show-details",
1130                           G_CALLBACK (on_show_details), obj);
1131
1132         g_signal_connect (G_OBJECT (priv->attachments_view), "activate",
1133                           G_CALLBACK (on_attachment_activated), obj);
1134
1135         html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW(priv->html_scroll));
1136
1137         g_signal_connect (G_OBJECT (html_vadj), "changed",
1138                           G_CALLBACK (html_adjustment_changed), obj);
1139
1140         gtk_widget_push_composite_child ();
1141         priv->headers_box = gtk_vbox_new (FALSE, MODEST_MARGIN_DEFAULT);
1142         gtk_widget_set_composite_name (priv->headers_box, "headers");
1143         gtk_widget_pop_composite_child ();
1144
1145         if (priv->mail_header_view)
1146                 gtk_box_pack_start (GTK_BOX(priv->headers_box), priv->mail_header_view, FALSE, FALSE, 0);
1147
1148         priv->priority_icon = gtk_image_new ();
1149         gtk_misc_set_alignment (GTK_MISC (priv->priority_icon), 0.0, 0.5);
1150         if (priv->priority_icon) {
1151                 priv->priority_box = (GtkWidget *)
1152                         modest_mail_header_view_add_custom_header (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view),
1153                                                                    _("mcen_me_editor_message_priority"),
1154                                                                    priv->priority_icon,
1155                                                                    FALSE, FALSE);
1156
1157                 gtk_widget_hide_all (priv->priority_box);
1158         }
1159
1160         if (priv->attachments_view) {
1161 #ifndef MODEST_TOOLKIT_HILDON2
1162                 gchar *att_label = g_strconcat (_("mcen_me_viewer_attachments"), ":", NULL);
1163 #else
1164                 gchar *att_label = g_strconcat (_("mail_va_attachment"), ":", NULL);
1165 #endif
1166
1167                 priv->attachments_box = (GtkWidget *)
1168                         modest_mail_header_view_add_custom_header (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view),
1169                                                                    att_label,
1170                                                                    priv->attachments_view,
1171                                                                    FALSE, FALSE);
1172                 gtk_widget_hide_all (priv->attachments_box);
1173                 g_free (att_label);
1174         }
1175
1176         separator = gtk_hseparator_new ();
1177         gtk_box_pack_start (GTK_BOX(priv->headers_box), separator, FALSE, FALSE, 0);
1178
1179         gtk_widget_set_parent (priv->headers_box, GTK_WIDGET (obj));
1180
1181         if (priv->body_view) {
1182                 gtk_container_add (GTK_CONTAINER (priv->html_scroll), priv->body_view);
1183                 gtk_widget_set_parent (priv->html_scroll, GTK_WIDGET(obj));
1184 #ifdef MAEMO_CHANGES
1185                 gtk_widget_tap_and_hold_setup (GTK_WIDGET (priv->body_view), NULL, NULL, 0);
1186                 g_signal_connect (G_OBJECT (priv->body_view), "tap-and-hold", G_CALLBACK (on_tap_and_hold), obj);
1187                 g_signal_connect (G_OBJECT (priv->body_view), "tap-and-hold-query", G_CALLBACK (on_tap_and_hold_query), obj);
1188 #endif
1189         }
1190
1191 }
1192
1193
1194 static void
1195 modest_gtkhtml_msg_view_finalize (GObject *obj)
1196 {
1197         ModestGtkhtmlMsgViewPrivate *priv;
1198         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (obj);
1199
1200         if (priv->msg) {
1201                 g_object_unref (G_OBJECT(priv->msg));
1202                 priv->msg = NULL;
1203         }
1204
1205         if (priv->idle_motion_id > 0) {
1206                 g_source_remove (priv->idle_motion_id);
1207                 priv->idle_motion_id = 0;
1208         }
1209
1210         /* we cannot disconnect sigs, because priv->body_view is
1211          * already dead */
1212
1213         disconnect_vadjustment (MODEST_GTKHTML_MSG_VIEW(obj));
1214         disconnect_hadjustment (MODEST_GTKHTML_MSG_VIEW(obj));
1215
1216         priv->body_view = NULL;
1217         priv->attachments_view = NULL;
1218
1219         G_OBJECT_CLASS(parent_class)->finalize (obj);
1220 }
1221
1222 static void
1223 modest_gtkhtml_msg_view_destroy (GtkObject *obj)
1224 {
1225         disconnect_vadjustment (MODEST_GTKHTML_MSG_VIEW(obj));
1226         disconnect_hadjustment (MODEST_GTKHTML_MSG_VIEW(obj));
1227
1228         GTK_OBJECT_CLASS(parent_class)->destroy (obj);
1229 }
1230
1231 /* INTERNAL METHODS */
1232
1233 #ifdef MAEMO_CHANGES
1234 static gboolean
1235 motion_notify_event (GtkWidget *widget,
1236                      GdkEventMotion *event,
1237                      gpointer userdata)
1238 {
1239         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (userdata);
1240
1241         /* Use panning information in gtkhtml widget to support also vertical panning */
1242
1243         if (GTK_HTML (widget)->panning) {
1244                 gint y, dy;
1245                 gdouble value;
1246
1247                 gdk_window_get_pointer (GTK_LAYOUT (widget)->bin_window, NULL, &y, NULL);
1248                 dy = y - GTK_HTML (widget)->lasty;
1249                 value = priv->vadj->value - (gdouble) dy;
1250
1251                 if (value < priv->vadj->lower)
1252                         value = priv->vadj->lower;
1253                 else if (value > priv->vadj->upper - priv->vadj->page_size)
1254                         value = priv->vadj->upper - priv->vadj->page_size;
1255                 gtk_adjustment_set_value (priv->vadj, value);
1256
1257         }
1258         return FALSE;
1259 }
1260 #endif
1261
1262 static gboolean
1263 idle_motion (gpointer userdata)
1264 {
1265         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (userdata);
1266         if (GTK_HTML (priv->body_view)->in_selection_drag) {
1267                 gdouble offset;
1268                 GtkAdjustment *adj;
1269                 gint gdk_y;
1270                 gdk_window_get_pointer (gtk_widget_get_parent_window (priv->body_view), NULL, &gdk_y, NULL);
1271                 offset= (gdouble) (priv->headers_box->requisition.height + gdk_y);
1272                 adj = GTK_ADJUSTMENT (priv->vadj);
1273                 if (offset < adj->value + adj->step_increment) {
1274                         gtk_adjustment_set_value (adj, MAX (offset + adj->page_increment - adj->page_size, 0.0));
1275                 } else if (offset > adj->value + adj->page_increment) {
1276                         gtk_adjustment_set_value (adj, MIN (offset - adj->page_increment, adj->upper - adj->page_size));
1277                 }
1278                 gtk_widget_queue_resize (userdata);
1279         }
1280         return TRUE;
1281 }
1282
1283 static gboolean
1284 button_press_event (GtkWidget *widget,
1285                     GdkEventButton *event,
1286                     gpointer userdata)
1287 {
1288         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (userdata);
1289
1290         if (priv->idle_motion_id == 0) {
1291                 priv->idle_motion_id = g_timeout_add (200, idle_motion, userdata);
1292         }
1293         return FALSE;
1294 }
1295
1296 static gboolean
1297 button_release_event (GtkWidget *widget,
1298                       GdkEventButton *event,
1299                       gpointer userdata)
1300 {
1301         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (userdata);
1302
1303         if (priv->idle_motion_id > 0) {
1304                 gint gdk_y;
1305                 g_source_remove (priv->idle_motion_id);
1306
1307                 priv->idle_motion_id = 0;;
1308                 gdk_window_get_pointer (gtk_widget_get_parent_window (priv->body_view), NULL, &gdk_y, NULL);
1309                 event->y = (gdouble) gdk_y;
1310         }
1311         return FALSE;
1312 }
1313
1314 static GtkAdjustment *
1315 get_vadjustment (ModestGtkhtmlMsgView *self)
1316 {
1317         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1318
1319         if (!priv->vadj)
1320                 set_vadjustment (self, NULL);
1321
1322         return priv->vadj;
1323
1324 }
1325
1326 static GtkAdjustment *
1327 get_hadjustment (ModestGtkhtmlMsgView *self)
1328 {
1329         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1330
1331         if (!priv->hadj)
1332                 set_hadjustment (self, NULL);
1333
1334         return priv->hadj;
1335
1336 }
1337
1338 static void
1339 set_hadjustment (ModestGtkhtmlMsgView *self, GtkAdjustment *hadj)
1340 {
1341         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1342         gboolean value_changed;
1343
1344         if (hadj && hadj == priv->hadj)
1345                 return;
1346
1347         if (!hadj)
1348                 hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0,0.0,0.0,0.0,0.0,0.0));
1349         disconnect_hadjustment (self);
1350         g_object_ref (G_OBJECT (hadj));
1351         gtk_object_sink (GTK_OBJECT (hadj));
1352         priv->hadj = hadj;
1353         set_hadjustment_values (self, &value_changed);
1354
1355         g_signal_connect (hadj, "value_changed", G_CALLBACK (adjustment_value_changed),
1356                           self);
1357
1358         gtk_adjustment_changed (hadj);
1359         if (value_changed)
1360                 gtk_adjustment_value_changed (hadj);
1361         else
1362                 adjustment_value_changed (hadj, self);
1363
1364         g_object_notify (G_OBJECT (self), "hadjustment");
1365 }
1366
1367 static void
1368 set_vadjustment (ModestGtkhtmlMsgView *self, GtkAdjustment *vadj)
1369 {
1370         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1371         gboolean value_changed;
1372
1373         if (vadj && vadj == priv->vadj)
1374                 return;
1375
1376         if (!vadj)
1377                 vadj = (GtkAdjustment *) gtk_adjustment_new (0.0,0.0,0.0,0.0,0.0,0.0);
1378         disconnect_vadjustment (self);
1379         g_object_ref (G_OBJECT (vadj));
1380         gtk_object_sink (GTK_OBJECT (vadj));
1381         priv->vadj = vadj;
1382         set_vadjustment_values (self, &value_changed);
1383
1384         g_signal_connect (vadj, "value_changed", G_CALLBACK (adjustment_value_changed),
1385                           self);
1386
1387         gtk_adjustment_changed (vadj);
1388         if (value_changed)
1389                 gtk_adjustment_value_changed (vadj);
1390         else
1391                 adjustment_value_changed (vadj, self);
1392
1393         g_object_notify (G_OBJECT (self), "vadjustment");
1394 }
1395
1396 static void
1397 set_shadow_type (ModestGtkhtmlMsgView *self,
1398                  GtkShadowType shadow_type)
1399 {
1400         ModestGtkhtmlMsgViewPrivate *priv;
1401         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
1402
1403         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1404
1405         if (priv->shadow_type != shadow_type) {
1406                 priv->shadow_type = shadow_type;
1407
1408                 if (GTK_WIDGET_VISIBLE (self)) {
1409                         gtk_widget_size_allocate (GTK_WIDGET (self), &(GTK_WIDGET (self)->allocation));
1410                         gtk_widget_queue_draw (GTK_WIDGET (self));
1411                 }
1412                 g_object_notify (G_OBJECT (self), "shadow-type");
1413         }
1414 }
1415
1416 static GtkShadowType
1417 get_shadow_type (ModestGtkhtmlMsgView *self)
1418 {
1419         ModestGtkhtmlMsgViewPrivate *priv;
1420         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), GTK_SHADOW_NONE);
1421         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1422
1423         return priv->shadow_type;
1424 }
1425
1426 GtkWidget*
1427 modest_msg_view_new (TnyMsg *msg)
1428 {
1429         GObject *obj;
1430         ModestGtkhtmlMsgView* self;
1431
1432         obj  = G_OBJECT(g_object_new(MODEST_TYPE_GTKHTML_MSG_VIEW, NULL));
1433         self = MODEST_GTKHTML_MSG_VIEW(obj);
1434         tny_msg_view_set_msg (TNY_MSG_VIEW (self), msg);
1435
1436         return GTK_WIDGET(self);
1437 }
1438
1439 #ifdef MAEMO_CHANGES
1440 static void
1441 on_tap_and_hold (GtkWidget *widget,
1442                  gpointer data)
1443 {
1444         ModestGtkhtmlMsgView *self = (ModestGtkhtmlMsgView *) data;
1445         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1446
1447         g_signal_emit_by_name (G_OBJECT (self), "link-contextual", priv->last_url);
1448 }
1449
1450 static gboolean
1451 on_tap_and_hold_query (GtkWidget *widget,
1452                        GdkEvent *event,
1453                        gpointer data)
1454 {
1455         ModestGtkhtmlMsgView *self = (ModestGtkhtmlMsgView *) data;
1456         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1457
1458         /* Don't show the tap and hold animation if no url below */
1459         return (priv->last_url == NULL);
1460 }
1461 #endif
1462
1463 static void
1464 on_recpt_activated (ModestMailHeaderView *header_view,
1465                     const gchar *address,
1466                     ModestGtkhtmlMsgView *self)
1467 {
1468         g_signal_emit_by_name (G_OBJECT (self), "recpt-activated", address);
1469 }
1470
1471 static void
1472 on_show_details (ModestMailHeaderView *header_view,
1473                  ModestGtkhtmlMsgView *self)
1474 {
1475         g_signal_emit_by_name (G_OBJECT (self), "show-details");
1476 }
1477
1478 static void
1479 on_attachment_activated (ModestAttachmentsView * att_view, TnyMimePart *mime_part, gpointer self)
1480 {
1481
1482         g_signal_emit_by_name (G_OBJECT(self), "attachment_clicked", mime_part);
1483 }
1484
1485 static void
1486 request_fetch_images (ModestGtkhtmlMsgView *self)
1487 {
1488         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1489         TnyMimePart *part;
1490
1491         /* The message could have not been downloaded yet */
1492         if (priv->msg) {
1493                 modest_mime_part_view_set_view_images (MODEST_MIME_PART_VIEW (priv->body_view), TRUE);
1494                 part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (priv->body_view));
1495                 if (part) {
1496                         tny_mime_part_view_set_part (TNY_MIME_PART_VIEW (priv->body_view), part);
1497                         g_object_unref (part);
1498                 }
1499                 tny_msg_set_allow_external_images (TNY_MSG (priv->msg), TRUE);
1500         }
1501 }
1502
1503 static gboolean
1504 has_blocked_external_images (ModestGtkhtmlMsgView *self)
1505 {
1506         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1507
1508         return (modest_mime_part_view_has_external_images (MODEST_MIME_PART_VIEW (priv->body_view)) &&
1509                 !modest_mime_part_view_get_view_images (MODEST_MIME_PART_VIEW (priv->body_view)));
1510 }
1511
1512 static gboolean
1513 on_activate_link (GtkWidget *widget, const gchar *uri, ModestGtkhtmlMsgView *self)
1514 {
1515         gboolean result;
1516         g_return_val_if_fail (self, FALSE);
1517
1518         g_signal_emit_by_name (G_OBJECT(self), "activate-link", uri, &result);
1519
1520         return result;
1521 }
1522
1523
1524 static gboolean
1525 on_link_hover (GtkWidget *widget, const gchar *uri, ModestGtkhtmlMsgView *self)
1526 {
1527         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1528         gboolean result;
1529
1530         g_free (priv->last_url);
1531         priv->last_url = g_strdup (uri);
1532
1533         g_signal_emit_by_name (G_OBJECT(self), "link-hover", uri, &result);
1534
1535         return result;
1536 }
1537
1538
1539
1540 static TnyMimePart *
1541 find_cid_image (TnyMsg *msg, const gchar *cid)
1542 {
1543         TnyMimePart *part = NULL;
1544         TnyList *parts;
1545         TnyIterator *iter;
1546
1547         g_return_val_if_fail (msg, NULL);
1548         g_return_val_if_fail (cid, NULL);
1549
1550         parts  = TNY_LIST (tny_simple_list_new());
1551
1552         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
1553         iter   = tny_list_create_iterator (parts);
1554
1555         while (!tny_iterator_is_done(iter)) {
1556                 const gchar *part_cid;
1557
1558                 part = TNY_MIME_PART(tny_iterator_get_current(iter));
1559                 part_cid = tny_mime_part_get_content_id (part);
1560
1561                 /* if there is no content id, try the content location;
1562                  * this is what Outlook seems to use when it converts
1563                  * it's internal richtext to html
1564                  */
1565                 if (!part_cid)
1566                         part_cid = tny_mime_part_get_content_location (part);
1567
1568                 if (part_cid && strcmp (cid, part_cid) == 0)
1569                         break;
1570
1571                 if (tny_mime_part_content_type_is (part, "multipart/related")) {
1572                         TnyList *related_parts = TNY_LIST (tny_simple_list_new ());
1573                         TnyIterator *related_iter = NULL;
1574                         TnyMimePart *related_part = NULL;
1575
1576                         tny_mime_part_get_parts (part, related_parts);
1577                         related_iter = tny_list_create_iterator (related_parts);
1578
1579                         while (!tny_iterator_is_done (related_iter)) {
1580                                 related_part = TNY_MIME_PART (tny_iterator_get_current (related_iter));
1581                                 part_cid = tny_mime_part_get_content_id (related_part);
1582                                 if (part_cid && strcmp (cid, part_cid) == 0) {
1583                                         break;
1584                                 }
1585                                 g_object_unref (related_part);
1586                                 related_part = NULL;
1587                                 tny_iterator_next (related_iter);
1588                         }
1589
1590                         g_object_unref (related_iter);
1591                         g_object_unref (related_parts);
1592                         if (related_part != NULL) {
1593                                 g_object_unref (part);
1594                                 part = related_part;
1595                                 break;
1596                         }
1597                 }
1598
1599                 g_object_unref (G_OBJECT(part));
1600
1601                 part = NULL;
1602                 tny_iterator_next (iter);
1603         }
1604
1605         g_object_unref (G_OBJECT(iter));
1606         g_object_unref (G_OBJECT(parts));
1607
1608         return part;
1609 }
1610
1611
1612 static gboolean
1613 on_fetch_url (GtkWidget *widget, const gchar *uri,
1614               TnyStream *stream, ModestGtkhtmlMsgView *self)
1615 {
1616         ModestGtkhtmlMsgViewPrivate *priv;
1617         const gchar* my_uri;
1618         TnyMimePart *part = NULL;
1619
1620
1621
1622         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1623
1624         /*
1625          * we search for either something starting with cid:, or something
1626          * with no prefix at all; this latter case occurs when sending mails
1627          * with MS Outlook in rich-text mode, and 'attach-as-object
1628          */
1629         if (g_str_has_prefix (uri, "cid:"))
1630                 my_uri = uri + 4;  /* +4 ==> skip "cid:" */
1631         else
1632                 my_uri = uri;
1633
1634         /* now try to find the embedded image */
1635         part = find_cid_image (priv->msg, my_uri);
1636
1637         if (!part) {
1638                 if (g_str_has_prefix (uri, "http:")) {
1639                         if (modest_mime_part_view_get_view_images (MODEST_MIME_PART_VIEW (priv->body_view))) {
1640                                 gboolean result = FALSE;
1641                                 g_signal_emit_by_name (self, "fetch-image", uri, stream, &result);
1642                                 return result;
1643                         } else {
1644                                 /* we return immediately to get a "image not found" icon */
1645                                 tny_stream_close (stream);
1646                                 return TRUE;
1647                         }
1648                 } else {
1649                         return FALSE;
1650                 }
1651         }
1652
1653         tny_mime_part_decode_to_stream ((TnyMimePart*)part, stream, NULL);
1654         tny_stream_close (stream);
1655         g_object_unref (G_OBJECT(part));
1656         return TRUE;
1657 }
1658
1659 static void
1660 set_message (ModestGtkhtmlMsgView *self, TnyMsg *msg)
1661 {
1662         TnyMimePart *body;
1663         ModestGtkhtmlMsgViewPrivate *priv;
1664         TnyHeader *header;
1665         GtkAdjustment *html_vadj;
1666
1667         g_return_if_fail (self);
1668
1669         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE(self);
1670         modest_mail_header_view_set_loading (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view), FALSE);
1671         gtk_widget_set_no_show_all (priv->mail_header_view, FALSE);
1672         modest_mime_part_view_set_view_images (MODEST_MIME_PART_VIEW (priv->body_view), FALSE);
1673
1674         html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
1675         html_vadj->upper = 0;
1676         html_vadj->page_size = 0;
1677         g_signal_emit_by_name (G_OBJECT (html_vadj), "changed");
1678
1679
1680         if (msg != priv->msg) {
1681                 if (priv->msg)
1682                         g_object_unref (G_OBJECT(priv->msg));
1683                 if (msg)
1684                         g_object_ref   (G_OBJECT(msg));
1685                 priv->msg = msg;
1686         }
1687
1688         if (!msg) {
1689                 tny_header_view_clear (TNY_HEADER_VIEW (priv->mail_header_view));
1690                 modest_attachments_view_set_message (MODEST_ATTACHMENTS_VIEW (priv->attachments_view), NULL);
1691                 gtk_widget_hide_all (priv->mail_header_view);
1692                 gtk_widget_hide_all (priv->attachments_box);
1693                 gtk_widget_hide_all (priv->priority_box);
1694                 gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
1695                 tny_mime_part_view_clear (TNY_MIME_PART_VIEW (priv->body_view));
1696                 gtk_widget_queue_resize (GTK_WIDGET(self));
1697                 gtk_widget_queue_draw (GTK_WIDGET(self));
1698                 return;
1699         }
1700
1701         header = tny_msg_get_header (msg);
1702         tny_header_view_set_header (TNY_HEADER_VIEW (priv->mail_header_view), header);
1703         g_object_unref (header);
1704
1705         modest_attachments_view_set_message (MODEST_ATTACHMENTS_VIEW(priv->attachments_view),
1706                                              msg);
1707
1708         modest_mime_part_view_set_view_images (MODEST_MIME_PART_VIEW (priv->body_view), tny_msg_get_allow_external_images (msg));
1709
1710         body = modest_tny_msg_find_body_part (msg, TRUE);
1711         if (body) {
1712                 ModestAttachmentsView *widget;
1713
1714                 tny_mime_part_view_set_part (TNY_MIME_PART_VIEW (priv->body_view), body);
1715                 g_object_unref (body);
1716                 widget = MODEST_ATTACHMENTS_VIEW (priv->attachments_view);
1717
1718                 if (modest_attachments_view_has_attachments (widget)) {
1719                         GtkLabel *label;
1720                         GList *children = NULL;
1721                         gchar *text = NULL;
1722                         /* Ugly but... */
1723                         children = gtk_container_get_children (GTK_CONTAINER (priv->attachments_box));
1724                         label = GTK_LABEL (children->data);
1725                         gtk_widget_show_all (priv->attachments_box);
1726                         if (modest_attachments_view_get_num_attachments (widget) > 1) {
1727                                 text = _("mail_va_attachments");
1728                         } else {
1729                                 text = _("mail_va_attachment");
1730                         }
1731                         gtk_label_set_text (label, text);
1732                 } else {
1733                         gtk_widget_hide_all (priv->attachments_box);
1734                 }
1735
1736         } else {
1737                 tny_mime_part_view_clear (TNY_MIME_PART_VIEW (priv->body_view));
1738         }
1739
1740         /* Refresh priority */
1741         set_priority (self, tny_header_get_flags (header));
1742
1743         gtk_widget_show (priv->body_view);
1744         gtk_widget_set_no_show_all (priv->priority_box, TRUE);
1745         gtk_widget_set_no_show_all (priv->attachments_box, TRUE);
1746         gtk_widget_show_all (priv->mail_header_view);
1747         gtk_widget_set_no_show_all (priv->attachments_box, FALSE);
1748         gtk_widget_set_no_show_all (priv->priority_box, FALSE);
1749         gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
1750         gtk_widget_queue_resize (GTK_WIDGET(self));
1751         gtk_widget_queue_draw (GTK_WIDGET(self));
1752
1753         if (priv->hadj != NULL)
1754                 priv->hadj->value = 0.0;
1755         if (priv->vadj != NULL)
1756                 priv->vadj->value = 0.0;
1757
1758         g_signal_emit_by_name (G_OBJECT (html_vadj), "changed");
1759
1760         /* This is a hack to force reallocation of scroll after drawing all the stuff. This
1761          * makes the html view get the proper and expected size and prevent being able to scroll
1762          * the buffer when it shouldn't be scrollable */
1763         g_object_ref (self);
1764         g_timeout_add (250, (GSourceFunc) idle_readjust_scroll, self);
1765 }
1766
1767 static void
1768 set_header (ModestGtkhtmlMsgView *self, TnyHeader *header)
1769 {
1770         ModestGtkhtmlMsgViewPrivate *priv;
1771         GtkAdjustment *html_vadj;
1772
1773         g_return_if_fail (self);
1774
1775         if (header == NULL) {
1776                 set_message (self, NULL);
1777                 return;
1778         }
1779
1780         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE(self);
1781         modest_mail_header_view_set_loading (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view), TRUE);
1782         gtk_widget_set_no_show_all (priv->mail_header_view, FALSE);
1783         modest_mime_part_view_set_view_images (MODEST_MIME_PART_VIEW (priv->body_view), FALSE);
1784
1785         html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
1786         html_vadj->upper = 0;
1787         html_vadj->page_size = 0;
1788         g_signal_emit_by_name (G_OBJECT (html_vadj), "changed");
1789
1790
1791         if (priv->msg) {
1792                 g_object_unref (G_OBJECT(priv->msg));
1793         }
1794         priv->msg = NULL;
1795
1796         tny_header_view_set_header (TNY_HEADER_VIEW (priv->mail_header_view), header);
1797         modest_attachments_view_set_message (MODEST_ATTACHMENTS_VIEW (priv->attachments_view), NULL);
1798         gtk_widget_show_all (priv->mail_header_view);
1799         gtk_widget_hide_all (priv->attachments_box);
1800         gtk_widget_hide_all (priv->priority_box);
1801         gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
1802         tny_mime_part_view_clear (TNY_MIME_PART_VIEW (priv->body_view));
1803         gtk_widget_queue_resize (GTK_WIDGET(self));
1804         gtk_widget_queue_draw (GTK_WIDGET(self));
1805 }
1806
1807
1808 static TnyMsg*
1809 get_message (ModestGtkhtmlMsgView *self)
1810 {
1811         TnyMsg *msg;
1812
1813         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), NULL);
1814
1815         msg = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE(self)->msg;
1816
1817         if (msg)
1818                 g_object_ref (msg);
1819
1820         return msg;
1821 }
1822
1823 static gboolean
1824 is_empty (ModestGtkhtmlMsgView *self)
1825 {
1826         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1827
1828         return modest_mime_part_view_is_empty (MODEST_MIME_PART_VIEW (priv->body_view));
1829 }
1830
1831 static void
1832 set_zoom (ModestGtkhtmlMsgView *self, gdouble zoom)
1833 {
1834         ModestGtkhtmlMsgViewPrivate *priv;
1835
1836         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
1837         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1838
1839         modest_zoomable_set_zoom (MODEST_ZOOMABLE(priv->body_view), zoom);
1840
1841         gtk_widget_queue_resize (priv->body_view);
1842 }
1843
1844 static gdouble
1845 get_zoom (ModestGtkhtmlMsgView *self)
1846 {
1847         ModestGtkhtmlMsgViewPrivate *priv;
1848
1849         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), 1.0);
1850         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1851
1852         return modest_zoomable_get_zoom (MODEST_ZOOMABLE (priv->body_view));
1853 }
1854
1855 static TnyHeaderFlags
1856 get_priority (ModestGtkhtmlMsgView *self)
1857 {
1858         ModestGtkhtmlMsgViewPrivate *priv;
1859
1860         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), 0);
1861
1862         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1863
1864         return modest_mail_header_view_get_priority (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view));
1865 }
1866
1867 static void
1868 set_priority (ModestGtkhtmlMsgView *self, TnyHeaderFlags flags)
1869 {
1870         ModestGtkhtmlMsgViewPrivate *priv;
1871         TnyHeaderFlags priority_flags;
1872         gboolean show_priority = FALSE;
1873
1874         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
1875         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1876
1877         modest_mail_header_view_set_priority (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view), flags);
1878         priority_flags = flags & TNY_HEADER_FLAG_PRIORITY_MASK;
1879
1880         if (priority_flags == TNY_HEADER_FLAG_HIGH_PRIORITY) {
1881                 show_priority = TRUE;
1882                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->priority_icon), MODEST_HEADER_ICON_HIGH, GTK_ICON_SIZE_MENU);
1883         } else if (priority_flags == TNY_HEADER_FLAG_LOW_PRIORITY) {
1884                 show_priority = TRUE;
1885                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->priority_icon), MODEST_HEADER_ICON_LOW, GTK_ICON_SIZE_MENU);
1886         }
1887
1888 #ifdef MODEST_TOOLKIT_HILDON2
1889         if (show_priority && MODEST_IS_COMPACT_MAIL_HEADER_VIEW (priv->mail_header_view)) {
1890                 gtk_widget_show_all  (priv->priority_box);
1891         } else {
1892                 gtk_widget_hide_all (priv->priority_box);
1893         }
1894 #endif
1895
1896 }
1897
1898 /* INCREMENTAL SEARCH IMPLEMENTATION */
1899
1900 static gboolean
1901 search (ModestGtkhtmlMsgView *self, const gchar *search)
1902 {
1903         ModestGtkhtmlMsgViewPrivate *priv;
1904         gboolean result;
1905         GtkAdjustment *vadj, *tmp_vadj;
1906         gdouble y_offset;
1907
1908         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), FALSE);
1909
1910         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1911         vadj = gtk_layout_get_vadjustment (GTK_LAYOUT (priv->body_view));
1912         g_object_ref (vadj);
1913         tmp_vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, vadj->lower, vadj->upper, vadj->step_increment, 32.0, 32.0));
1914         gtk_layout_set_vadjustment (GTK_LAYOUT (priv->body_view), tmp_vadj);
1915         result = modest_isearch_view_search (MODEST_ISEARCH_VIEW (priv->body_view),
1916                                              search);
1917
1918         if (result) {
1919                 gint x, y, w, h;
1920                 gdouble offset_top, offset_bottom;
1921                 GtkAdjustment *adj;
1922                 if (modest_isearch_view_get_selection_area (MODEST_ISEARCH_VIEW (priv->body_view), &x, &y, &w, &h)) {
1923                         offset_top = (gdouble) (priv->headers_box->requisition.height + y);
1924                         offset_bottom = (gdouble) (priv->headers_box->requisition.height + y + h);
1925                         adj = GTK_ADJUSTMENT (priv->vadj);
1926                         if (offset_top < adj->value)
1927                                 gtk_adjustment_set_value (adj, offset_top + adj->page_increment - adj->page_size);
1928                         else if (offset_bottom > adj->value + adj->page_increment)
1929                                 gtk_adjustment_set_value (adj, offset_bottom - adj->page_increment);
1930                 }
1931         }
1932
1933         y_offset = tmp_vadj->value;
1934         gtk_layout_set_vadjustment (GTK_LAYOUT (priv->body_view), vadj);
1935         g_object_unref (vadj);
1936
1937         return result;
1938 }
1939
1940 static gboolean
1941 search_next (ModestGtkhtmlMsgView *self)
1942 {
1943         ModestGtkhtmlMsgViewPrivate *priv;
1944         gboolean result;
1945
1946         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), FALSE);
1947
1948         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1949         result = modest_isearch_view_search_next (MODEST_ISEARCH_VIEW (priv->body_view));
1950
1951         if (result) {
1952                 gint x, y, w, h;
1953                 gdouble offset_top, offset_bottom;
1954                 GtkAdjustment *adj;
1955
1956                 if (modest_isearch_view_get_selection_area (MODEST_ISEARCH_VIEW (priv->body_view), &x, &y, &w, &h)) {
1957                         offset_top = (gdouble) (priv->headers_box->requisition.height + y);
1958                         offset_bottom = (gdouble) (priv->headers_box->requisition.height + y + h);
1959                         adj = GTK_ADJUSTMENT (priv->vadj);
1960                         if (offset_top < adj->value)
1961                                 gtk_adjustment_set_value (adj, offset_top + adj->page_increment - adj->page_size);
1962                         else if (offset_bottom > adj->value + adj->page_increment)
1963                                 gtk_adjustment_set_value (adj, offset_bottom - adj->page_increment);
1964                 }
1965         }
1966         return result;
1967 }
1968
1969 static TnyList *
1970 get_selected_attachments (ModestGtkhtmlMsgView *self)
1971 {
1972         ModestGtkhtmlMsgViewPrivate *priv;
1973
1974         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), NULL);
1975         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1976
1977         return modest_attachments_view_get_selection (MODEST_ATTACHMENTS_VIEW (priv->attachments_view));
1978
1979 }
1980
1981 static TnyList *
1982 get_attachments (ModestGtkhtmlMsgView *self)
1983 {
1984         ModestGtkhtmlMsgViewPrivate *priv;
1985
1986         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), NULL);
1987         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1988
1989         return modest_attachments_view_get_attachments (MODEST_ATTACHMENTS_VIEW (priv->attachments_view));
1990
1991 }
1992
1993 static void
1994 grab_focus (ModestGtkhtmlMsgView *self)
1995 {
1996         ModestGtkhtmlMsgViewPrivate *priv = NULL;
1997
1998         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
1999         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
2000
2001         gtk_widget_grab_focus (priv->body_view);
2002 }
2003
2004 static void
2005 remove_attachment (ModestGtkhtmlMsgView *self, TnyMimePart *attachment)
2006 {
2007         ModestGtkhtmlMsgViewPrivate *priv;
2008
2009         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
2010         g_return_if_fail (TNY_IS_MIME_PART (attachment));
2011         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
2012
2013         modest_attachments_view_remove_attachment (MODEST_ATTACHMENTS_VIEW (priv->attachments_view),
2014                                                    attachment);
2015
2016 }
2017
2018 /* TNY HEADER VIEW IMPLEMENTATION */
2019
2020 static void
2021 tny_header_view_init (gpointer g, gpointer iface_data)
2022 {
2023         TnyHeaderViewIface *klass = (TnyHeaderViewIface *)g;
2024
2025         klass->set_header = modest_msg_view_set_header;
2026         klass->clear = modest_msg_view_clear_header;
2027
2028         return;
2029 }
2030
2031 static void
2032 modest_msg_view_set_header (TnyHeaderView *self, TnyHeader *header)
2033 {
2034         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_header_func (self, header);
2035 }
2036
2037
2038 static void
2039 modest_msg_view_set_header_default (TnyHeaderView *self, TnyHeader *header)
2040 {
2041         set_header (MODEST_GTKHTML_MSG_VIEW (self), header);
2042 }
2043
2044 static void
2045 modest_msg_view_clear_header (TnyHeaderView *self)
2046 {
2047         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->clear_header_func (self);
2048 }
2049
2050
2051 static void
2052 modest_msg_view_clear_header_default (TnyHeaderView *self)
2053 {
2054         set_message (MODEST_GTKHTML_MSG_VIEW (self), NULL);
2055 }
2056
2057 /* TNY MSG IMPLEMENTATION */
2058
2059 static void
2060 tny_msg_view_init (gpointer g, gpointer iface_data)
2061 {
2062         TnyMsgViewIface *klass = (TnyMsgViewIface *)g;
2063
2064         klass->get_msg = modest_msg_view_get_msg;
2065         klass->set_msg = modest_msg_view_set_msg;
2066         klass->set_unavailable = modest_msg_view_set_unavailable;
2067         klass->clear = modest_msg_view_clear;
2068         klass->create_mime_part_view_for = modest_msg_view_create_mime_part_view_for;
2069         klass->create_new_inline_viewer = modest_msg_view_create_new_inline_viewer;
2070
2071         return;
2072 }
2073
2074 static TnyMsg *
2075 modest_msg_view_get_msg (TnyMsgView *self)
2076 {
2077         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_msg_func (self);
2078 }
2079
2080 static TnyMsg *
2081 modest_msg_view_get_msg_default (TnyMsgView *self)
2082 {
2083         return TNY_MSG (tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (self)));
2084 }
2085
2086 static void
2087 modest_msg_view_set_msg (TnyMsgView *self, TnyMsg *msg)
2088 {
2089         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_msg_func (self, msg);
2090 }
2091
2092 static void
2093 modest_msg_view_set_msg_default (TnyMsgView *self, TnyMsg *msg)
2094 {
2095
2096         tny_mime_part_view_set_part (TNY_MIME_PART_VIEW (self), TNY_MIME_PART (msg));
2097
2098         return;
2099 }
2100
2101 static void
2102 modest_msg_view_set_unavailable (TnyMsgView *self)
2103 {
2104         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_unavailable_func (self);
2105 }
2106
2107 static void
2108 modest_msg_view_set_unavailable_default (TnyMsgView *self)
2109 {
2110         tny_msg_view_clear (self);
2111
2112         return;
2113 }
2114
2115 static void
2116 modest_msg_view_clear (TnyMsgView *self)
2117 {
2118         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->clear_func (self);
2119 }
2120
2121 static void
2122 modest_msg_view_clear_default (TnyMsgView *self)
2123 {
2124         set_message (MODEST_GTKHTML_MSG_VIEW (self), NULL);
2125 }
2126
2127 static TnyMimePartView*
2128 modest_msg_view_create_mime_part_view_for (TnyMsgView *self, TnyMimePart *part)
2129 {
2130         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->create_mime_part_view_for_func (self, part);
2131 }
2132
2133 static TnyMimePartView*
2134 modest_msg_view_create_mime_part_view_for_default (TnyMsgView *self, TnyMimePart *part)
2135 {
2136         g_warning ("modest_msg_view_create_mime_part_view_for_default is not implemented");
2137         return NULL;
2138 }
2139
2140 static TnyMsgView*
2141 modest_msg_view_create_new_inline_viewer (TnyMsgView *self)
2142 {
2143         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->create_new_inline_viewer_func (self);
2144 }
2145
2146 static TnyMsgView*
2147 modest_msg_view_create_new_inline_viewer_default (TnyMsgView *self)
2148 {
2149         g_warning ("modest_msg_view_create_new_inline_viewer_default is not implemented");
2150
2151         return NULL;
2152 }
2153
2154 /* TNY MIME PART IMPLEMENTATION */
2155
2156 static void
2157 tny_mime_part_view_init (gpointer g, gpointer iface_data)
2158 {
2159         TnyMimePartViewIface *klass = (TnyMimePartViewIface *)g;
2160
2161         klass->get_part = modest_msg_view_mp_get_part;
2162         klass->set_part = modest_msg_view_mp_set_part;
2163         klass->clear = modest_msg_view_mp_clear;
2164
2165         return;
2166 }
2167
2168 static TnyMimePart*
2169 modest_msg_view_mp_get_part (TnyMimePartView *self)
2170 {
2171         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_part_func (self);
2172 }
2173
2174
2175 static TnyMimePart*
2176 modest_msg_view_mp_get_part_default (TnyMimePartView *self)
2177 {
2178         return TNY_MIME_PART (get_message (MODEST_GTKHTML_MSG_VIEW (self)));
2179 }
2180
2181 static void
2182 modest_msg_view_mp_set_part (TnyMimePartView *self,
2183                              TnyMimePart *part)
2184 {
2185         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_part_func (self, part);
2186 }
2187
2188 static void
2189 modest_msg_view_mp_set_part_default (TnyMimePartView *self,
2190                                      TnyMimePart *part)
2191 {
2192         g_return_if_fail ((part == NULL) || TNY_IS_MSG (part));
2193
2194         set_message (MODEST_GTKHTML_MSG_VIEW (self), TNY_MSG (part));
2195 }
2196
2197 static void
2198 modest_msg_view_mp_clear (TnyMimePartView *self)
2199 {
2200         tny_msg_view_clear (TNY_MSG_VIEW (self));
2201 }
2202
2203 /* MODEST MIME PART VIEW IMPLEMENTATION */
2204
2205 static void
2206 modest_mime_part_view_init (gpointer g, gpointer iface_data)
2207 {
2208         ModestMimePartViewIface *klass = (ModestMimePartViewIface *)g;
2209
2210         klass->is_empty_func = modest_msg_view_mp_is_empty;
2211
2212         return;
2213 }
2214
2215 static gboolean
2216 modest_msg_view_mp_is_empty (ModestMimePartView *self)
2217 {
2218         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->is_empty_func (self);
2219 }
2220
2221 static gboolean
2222 modest_msg_view_mp_is_empty_default (ModestMimePartView *self)
2223 {
2224         return is_empty (MODEST_GTKHTML_MSG_VIEW (self));
2225 }
2226
2227 /* MODEST ZOOMABLE IMPLEMENTATION */
2228 static void
2229 modest_zoomable_init (gpointer g, gpointer iface_data)
2230 {
2231         ModestZoomableIface *klass = (ModestZoomableIface *)g;
2232
2233         klass->get_zoom_func = modest_msg_view_get_zoom;
2234         klass->set_zoom_func = modest_msg_view_set_zoom;
2235         klass->zoom_minus_func = modest_msg_view_zoom_minus;
2236         klass->zoom_plus_func = modest_msg_view_zoom_plus;
2237
2238         return;
2239 }
2240
2241 static gdouble
2242 modest_msg_view_get_zoom (ModestZoomable *self)
2243 {
2244         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_zoom_func (self);
2245 }
2246
2247 static gdouble
2248 modest_msg_view_get_zoom_default (ModestZoomable *self)
2249 {
2250         return get_zoom (MODEST_GTKHTML_MSG_VIEW (self));
2251 }
2252
2253 static void
2254 modest_msg_view_set_zoom (ModestZoomable *self, gdouble value)
2255 {
2256         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_zoom_func (self, value);
2257 }
2258
2259 static void
2260 modest_msg_view_set_zoom_default (ModestZoomable *self, gdouble value)
2261 {
2262         set_zoom (MODEST_GTKHTML_MSG_VIEW (self), value);
2263 }
2264
2265 static gboolean
2266 modest_msg_view_zoom_minus (ModestZoomable *self)
2267 {
2268         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->zoom_minus_func (self);
2269 }
2270
2271 static gboolean
2272 modest_msg_view_zoom_minus_default (ModestZoomable *self)
2273 {
2274         /* operation not supported in ModestMsgView */
2275         return FALSE;
2276 }
2277
2278 static gboolean
2279 modest_msg_view_zoom_plus (ModestZoomable *self)
2280 {
2281         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->zoom_plus_func (self);
2282 }
2283
2284 static gboolean
2285 modest_msg_view_zoom_plus_default (ModestZoomable *self)
2286 {
2287         /* operation not supported in ModestMsgView */
2288         return FALSE;
2289 }
2290
2291 /* MODEST ISEARCH VIEW IMPLEMENTATION */
2292 static void
2293 modest_isearch_view_init (gpointer g, gpointer iface_data)
2294 {
2295         ModestISearchViewIface *klass = (ModestISearchViewIface *)g;
2296
2297         klass->search_func = modest_msg_view_search;
2298         klass->search_next_func = modest_msg_view_search_next;
2299
2300         return;
2301 }
2302
2303 static gboolean
2304 modest_msg_view_search (ModestISearchView *self, const gchar *string)
2305 {
2306         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->search_func (self, string);
2307 }
2308
2309 static gboolean
2310 modest_msg_view_search_default (ModestISearchView *self, const gchar *string)
2311 {
2312         return search (MODEST_GTKHTML_MSG_VIEW (self), string);
2313 }
2314
2315 static gboolean
2316 modest_msg_view_search_next (ModestISearchView *self)
2317 {
2318         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->search_next_func (self);
2319 }
2320
2321 static gboolean
2322 modest_msg_view_search_next_default (ModestISearchView *self)
2323 {
2324         return search_next (MODEST_GTKHTML_MSG_VIEW (self));
2325 }
2326
2327 /* MODEST MSG VIEW IMPLEMENTATION */
2328 static void
2329 modest_msg_view_init (gpointer g, gpointer iface_data)
2330 {
2331         ModestMsgViewIface *klass = (ModestMsgViewIface *)g;
2332
2333         klass->get_vadjustment_func = modest_gtkhtml_msg_view_get_vadjustment;
2334         klass->get_hadjustment_func = modest_gtkhtml_msg_view_get_hadjustment;
2335         klass->set_vadjustment_func = modest_gtkhtml_msg_view_set_vadjustment;
2336         klass->set_hadjustment_func = modest_gtkhtml_msg_view_set_hadjustment;
2337         klass->set_shadow_type_func = modest_gtkhtml_msg_view_set_shadow_type;
2338         klass->get_shadow_type_func = modest_gtkhtml_msg_view_get_shadow_type;
2339         klass->get_priority_func = modest_gtkhtml_msg_view_get_priority;
2340         klass->set_priority_func = modest_gtkhtml_msg_view_set_priority;
2341         klass->get_selected_attachments_func = modest_gtkhtml_msg_view_get_selected_attachments;
2342         klass->get_attachments_func = modest_gtkhtml_msg_view_get_attachments;
2343         klass->grab_focus_func = modest_gtkhtml_msg_view_grab_focus;
2344         klass->remove_attachment_func = modest_gtkhtml_msg_view_remove_attachment;
2345         klass->request_fetch_images_func = modest_gtkhtml_msg_view_request_fetch_images;
2346         klass->has_blocked_external_images_func = modest_gtkhtml_msg_view_has_blocked_external_images;
2347
2348         return;
2349 }
2350
2351 static GtkAdjustment*
2352 modest_gtkhtml_msg_view_get_vadjustment (ModestMsgView *self)
2353 {
2354         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_vadjustment_func (self);
2355 }
2356
2357 static GtkAdjustment*
2358 modest_gtkhtml_msg_view_get_vadjustment_default (ModestMsgView *self)
2359 {
2360         return get_vadjustment (MODEST_GTKHTML_MSG_VIEW (self));
2361 }
2362
2363 static GtkAdjustment*
2364 modest_gtkhtml_msg_view_get_hadjustment (ModestMsgView *self)
2365 {
2366         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_hadjustment_func (self);
2367 }
2368
2369 static GtkAdjustment*
2370 modest_gtkhtml_msg_view_get_hadjustment_default (ModestMsgView *self)
2371 {
2372         return get_hadjustment (MODEST_GTKHTML_MSG_VIEW (self));
2373 }
2374
2375 static void
2376 modest_gtkhtml_msg_view_set_vadjustment (ModestMsgView *self, GtkAdjustment *adj)
2377 {
2378         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_vadjustment_func (self, adj);
2379 }
2380
2381 static void
2382 modest_gtkhtml_msg_view_set_vadjustment_default (ModestMsgView *self, GtkAdjustment *adj)
2383 {
2384         set_vadjustment (MODEST_GTKHTML_MSG_VIEW (self), adj);
2385 }
2386
2387 static void
2388 modest_gtkhtml_msg_view_set_hadjustment (ModestMsgView *self, GtkAdjustment *adj)
2389 {
2390         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_hadjustment_func (self, adj);
2391 }
2392
2393 static void
2394 modest_gtkhtml_msg_view_set_hadjustment_default (ModestMsgView *self, GtkAdjustment *adj)
2395 {
2396         set_hadjustment (MODEST_GTKHTML_MSG_VIEW (self), adj);
2397 }
2398
2399 static void
2400 modest_gtkhtml_msg_view_set_shadow_type (ModestMsgView *self, GtkShadowType type)
2401 {
2402         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_shadow_type_func (self, type);
2403 }
2404
2405 static void
2406 modest_gtkhtml_msg_view_set_shadow_type_default (ModestMsgView *self, GtkShadowType type)
2407 {
2408         set_shadow_type (MODEST_GTKHTML_MSG_VIEW (self), type);
2409 }
2410
2411 static GtkShadowType
2412 modest_gtkhtml_msg_view_get_shadow_type (ModestMsgView *self)
2413 {
2414         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_shadow_type_func (self);
2415 }
2416
2417 static GtkShadowType
2418 modest_gtkhtml_msg_view_get_shadow_type_default (ModestMsgView *self)
2419 {
2420         return get_shadow_type (MODEST_GTKHTML_MSG_VIEW (self));
2421 }
2422
2423 static void
2424 modest_gtkhtml_msg_view_set_priority (ModestMsgView *self, TnyHeaderFlags flags)
2425 {
2426         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_priority_func (self, flags);
2427 }
2428
2429 static void
2430 modest_gtkhtml_msg_view_set_priority_default (ModestMsgView *self, TnyHeaderFlags flags)
2431 {
2432         set_priority (MODEST_GTKHTML_MSG_VIEW (self), flags);
2433 }
2434
2435 static TnyHeaderFlags
2436 modest_gtkhtml_msg_view_get_priority (ModestMsgView *self)
2437 {
2438         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_priority_func (self);
2439 }
2440
2441 static TnyHeaderFlags
2442 modest_gtkhtml_msg_view_get_priority_default (ModestMsgView *self)
2443 {
2444         return get_priority (MODEST_GTKHTML_MSG_VIEW (self));
2445 }
2446
2447 static TnyList*
2448 modest_gtkhtml_msg_view_get_selected_attachments (ModestMsgView *self)
2449 {
2450         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_selected_attachments_func (self);
2451 }
2452
2453 static TnyList*
2454 modest_gtkhtml_msg_view_get_selected_attachments_default (ModestMsgView *self)
2455 {
2456         return get_selected_attachments (MODEST_GTKHTML_MSG_VIEW (self));
2457 }
2458
2459 static TnyList*
2460 modest_gtkhtml_msg_view_get_attachments (ModestMsgView *self)
2461 {
2462         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_attachments_func (self);
2463 }
2464
2465 static TnyList*
2466 modest_gtkhtml_msg_view_get_attachments_default (ModestMsgView *self)
2467 {
2468         return get_attachments (MODEST_GTKHTML_MSG_VIEW (self));
2469 }
2470
2471 static void
2472 modest_gtkhtml_msg_view_grab_focus (ModestMsgView *self)
2473 {
2474         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->grab_focus_func (self);
2475 }
2476
2477 static void
2478 modest_gtkhtml_msg_view_grab_focus_default (ModestMsgView *self)
2479 {
2480         grab_focus (MODEST_GTKHTML_MSG_VIEW (self));
2481 }
2482
2483 static void
2484 modest_gtkhtml_msg_view_remove_attachment (ModestMsgView *self, TnyMimePart *attachment)
2485 {
2486         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->remove_attachment_func (self, attachment);
2487 }
2488
2489 static void
2490 modest_gtkhtml_msg_view_remove_attachment_default (ModestMsgView *self, TnyMimePart *attachment)
2491 {
2492         remove_attachment (MODEST_GTKHTML_MSG_VIEW (self), attachment);
2493 }
2494
2495 static void
2496 modest_gtkhtml_msg_view_request_fetch_images (ModestMsgView *self)
2497 {
2498         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->request_fetch_images_func (self);
2499 }
2500
2501 static void
2502 modest_gtkhtml_msg_view_request_fetch_images_default (ModestMsgView *self)
2503 {
2504         request_fetch_images (MODEST_GTKHTML_MSG_VIEW (self));
2505 }
2506
2507 static gboolean
2508 modest_gtkhtml_msg_view_has_blocked_external_images (ModestMsgView *self)
2509 {
2510         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->has_blocked_external_images_func (self);
2511 }
2512
2513 static gboolean
2514 modest_gtkhtml_msg_view_has_blocked_external_images_default (ModestMsgView *self)
2515 {
2516         return has_blocked_external_images (MODEST_GTKHTML_MSG_VIEW (self));
2517 }