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 static void on_limit_error (GtkWidget *widget, ModestGtkhtmlMsgView *msg_view);
  90
  91 #ifdef MAEMO_CHANGES
  92 static void     on_tap_and_hold (GtkWidget *widget, gpointer userdata);
  93 static gboolean on_tap_and_hold_query (GtkWidget *widget, GdkEvent *event, gpointer userdata);
  94 #endif /*MAEMO_CHANGES*/
  95
  96
  97 /* size allocation and drawing handlers */
  98 static void get_view_allocation (ModestGtkhtmlMsgView *msg_view, GtkAllocation *allocation);
  99 static void size_request (GtkWidget *widget, GtkRequisition *req);
 100 static void size_allocate (GtkWidget *widget, GtkAllocation *alloc);
 101 static void realize (GtkWidget *widget);
 102 static void unrealize (GtkWidget *widget);
 103 static gint expose (GtkWidget *widget, GdkEventExpose *event);
 104 static void reclamp_adjustment (GtkAdjustment *adj, gboolean *value_changed);
 105 static void set_hadjustment_values (ModestGtkhtmlMsgView *msg_view, gboolean *value_changed);
 106 static void set_scroll_adjustments (ModestGtkhtmlMsgView *msg_view, GtkAdjustment *hadj, GtkAdjustment *vadj);
 107 static void adjustment_value_changed (GtkAdjustment *adj, gpointer data);
 108 static void html_adjustment_changed (GtkAdjustment *adj, gpointer data);
 109 static void disconnect_vadjustment (ModestGtkhtmlMsgView *obj);
 110 static void disconnect_hadjustment (ModestGtkhtmlMsgView *obj);
 111 static gboolean idle_readjust_scroll (ModestGtkhtmlMsgView *obj);
 112
 113 /* vertical panning implementation */
 114 #ifdef MAEMO_CHANGES
 115 static gboolean motion_notify_event (GtkWidget *widget,
 116                                      GdkEventMotion *event,
 117                                      gpointer userdata);
 118 #endif
 119
 120 static gboolean
 121 button_press_event (GtkWidget *widget,
 122                     GdkEventButton *event,
 123                     gpointer userdata);
 124 static gboolean
 125 button_release_event (GtkWidget *widget,
 126                       GdkEventButton *event,
 127                       gpointer userdata);
 128
 129 /* GtkContainer methods */
 130 static void forall (GtkContainer *container, gboolean include_internals,
 131                     GtkCallback callback, gpointer userdata);
 132 static void container_remove (GtkContainer *container, GtkWidget *widget);
 133
 134 /* TnyMimePartView implementation */
 135 static void modest_msg_view_mp_clear (TnyMimePartView *self);
 136 static void modest_msg_view_mp_set_part (TnyMimePartView *self, TnyMimePart *part);
 137 static void modest_msg_view_mp_set_part_default (TnyMimePartView *self, TnyMimePart *part);
 138 static TnyMimePart* modest_msg_view_mp_get_part (TnyMimePartView *self);
 139 static TnyMimePart* modest_msg_view_mp_get_part_default (TnyMimePartView *self);
 140 /* ModestMimePartView implementation */
 141 static gboolean modest_msg_view_mp_is_empty (ModestMimePartView *self);
 142 static gboolean modest_msg_view_mp_is_empty_default (ModestMimePartView *self);
 143 /* TnyHeaderView implementation */
 144 static void modest_msg_view_set_header (TnyHeaderView *self, TnyHeader *header);
 145 static void modest_msg_view_set_header_default (TnyHeaderView *self, TnyHeader *header);
 146 static void modest_msg_view_clear_header (TnyHeaderView *self);
 147 static void modest_msg_view_clear_header_default (TnyHeaderView *self);
 148 /* TnyMsgView implementation */
 149 static TnyMsg *modest_msg_view_get_msg (TnyMsgView *self);
 150 static TnyMsg *modest_msg_view_get_msg_default (TnyMsgView *self);
 151 static void modest_msg_view_set_msg (TnyMsgView *self, TnyMsg *msg);
 152 static void modest_msg_view_set_msg_default (TnyMsgView *self, TnyMsg *msg);
 153 static void modest_msg_view_clear (TnyMsgView *self);
 154 static void modest_msg_view_clear_default (TnyMsgView *self);
 155 static void modest_msg_view_set_unavailable (TnyMsgView *self);
 156 static void modest_msg_view_set_unavailable_default (TnyMsgView *self);
 157 static TnyMimePartView *modest_msg_view_create_mime_part_view_for (TnyMsgView *self, TnyMimePart *part);
 158 static TnyMimePartView *modest_msg_view_create_mime_part_view_for_default (TnyMsgView *self, TnyMimePart *part);
 159 static TnyMsgView *modest_msg_view_create_new_inline_viewer (TnyMsgView *self);
 160 static TnyMsgView *modest_msg_view_create_new_inline_viewer_default (TnyMsgView *self);
 161 /* ModestZoomable implementation */
 162 static gdouble modest_msg_view_get_zoom (ModestZoomable *self);
 163 static void modest_msg_view_set_zoom (ModestZoomable *self, gdouble value);
 164 static gboolean modest_msg_view_zoom_minus (ModestZoomable *self);
 165 static gboolean modest_msg_view_zoom_plus (ModestZoomable *self);
 166 static gdouble modest_msg_view_get_zoom_default (ModestZoomable *self);
 167 static void modest_msg_view_set_zoom_default (ModestZoomable *self, gdouble value);
 168 static gboolean modest_msg_view_zoom_minus_default (ModestZoomable *self);
 169 static gboolean modest_msg_view_zoom_plus_default (ModestZoomable *self);
 170 /* ModestISearchView implementation */
 171 static gboolean modest_msg_view_search (ModestISearchView *self, const gchar *string);
 172 static gboolean modest_msg_view_search_default (ModestISearchView *self, const gchar *string);
 173 static gboolean modest_msg_view_search_next (ModestISearchView *self);
 174 static gboolean modest_msg_view_search_next_default (ModestISearchView *self);
 175 /* ModestMsgView implementation */
 176 static void modest_gtkhtml_msg_view_set_msg_with_other_body (ModestMsgView *self, TnyMsg *msg, TnyMimePart *other_body);
 177 static GtkAdjustment *modest_gtkhtml_msg_view_get_vadjustment (ModestMsgView *self);
 178 static GtkAdjustment *modest_gtkhtml_msg_view_get_hadjustment (ModestMsgView *self);
 179 static void modest_gtkhtml_msg_view_set_vadjustment (ModestMsgView *self, GtkAdjustment *vadj);
 180 static void modest_gtkhtml_msg_view_set_hadjustment (ModestMsgView *self, GtkAdjustment *hadj);
 181 static void modest_gtkhtml_msg_view_set_shadow_type (ModestMsgView *self, GtkShadowType type);
 182 static GtkShadowType modest_gtkhtml_msg_view_get_shadow_type (ModestMsgView *self);
 183 static TnyHeaderFlags modest_gtkhtml_msg_view_get_priority (ModestMsgView *self);
 184 static void modest_gtkhtml_msg_view_set_priority (ModestMsgView *self, TnyHeaderFlags flags);
 185 static TnyList *modest_gtkhtml_msg_view_get_selected_attachments (ModestMsgView *self);
 186 static TnyList *modest_gtkhtml_msg_view_get_attachments (ModestMsgView *self);
 187 static void modest_gtkhtml_msg_view_grab_focus (ModestMsgView *self);
 188 static void modest_gtkhtml_msg_view_remove_attachment (ModestMsgView *view, TnyMimePart *attachment);
 189 static void modest_gtkhtml_msg_view_request_fetch_images (ModestMsgView *view);
 190 static void modest_gtkhtml_msg_view_set_branding (ModestMsgView *view, const gchar *brand_name, const GdkPixbuf *brand_icon);
 191 static gboolean modest_gtkhtml_msg_view_has_blocked_external_images (ModestMsgView *view);
 192 static void modest_gtkhtml_msg_view_set_msg_with_other_body_default (ModestMsgView *view, TnyMsg *msg, TnyMimePart *part);
 193 static GtkAdjustment *modest_gtkhtml_msg_view_get_vadjustment_default (ModestMsgView *self);
 194 static GtkAdjustment *modest_gtkhtml_msg_view_get_hadjustment_default (ModestMsgView *self);
 195 static void modest_gtkhtml_msg_view_set_vadjustment_default (ModestMsgView *self, GtkAdjustment *vadj);
 196 static void modest_gtkhtml_msg_view_set_hadjustment_default (ModestMsgView *self, GtkAdjustment *hadj);
 197 static void modest_gtkhtml_msg_view_set_shadow_type_default (ModestMsgView *self, GtkShadowType type);
 198 static GtkShadowType modest_gtkhtml_msg_view_get_shadow_type_default (ModestMsgView *self);
 199 static TnyHeaderFlags modest_gtkhtml_msg_view_get_priority_default (ModestMsgView *self);
 200 static void modest_gtkhtml_msg_view_set_priority_default (ModestMsgView *self, TnyHeaderFlags flags);
 201 static TnyList *modest_gtkhtml_msg_view_get_selected_attachments_default (ModestMsgView *self);
 202 static TnyList *modest_gtkhtml_msg_view_get_attachments_default (ModestMsgView *self);
 203 static void modest_gtkhtml_msg_view_grab_focus_default (ModestMsgView *self);
 204 static void modest_gtkhtml_msg_view_remove_attachment_default (ModestMsgView *view, TnyMimePart *attachment);
 205 static gboolean modest_gtkhtml_msg_view_has_blocked_external_images_default (ModestMsgView *view);
 206 static void modest_gtkhtml_msg_view_request_fetch_images_default (ModestMsgView *view);
 207 static void modest_gtkhtml_msg_view_set_branding_default (ModestMsgView *view, const gchar *brand_name, const GdkPixbuf *brand_icon);
 208
 209 /* internal api */
 210 static void     set_header     (ModestGtkhtmlMsgView *self, TnyHeader *header);
 211 static TnyMsg   *get_message   (ModestGtkhtmlMsgView *self);
 212 static void     set_message    (ModestGtkhtmlMsgView *self, TnyMsg *tny_msg, TnyMimePart *other_body);
 213 static gboolean is_empty       (ModestGtkhtmlMsgView *self);
 214 static void     set_zoom       (ModestGtkhtmlMsgView *self, gdouble zoom);
 215 static gdouble  get_zoom       (ModestGtkhtmlMsgView *self);
 216 static gboolean search         (ModestGtkhtmlMsgView *self, const gchar *search);
 217 static gboolean search_next    (ModestGtkhtmlMsgView *self);
 218 static GtkAdjustment *get_vadjustment (ModestGtkhtmlMsgView *self);
 219 static GtkAdjustment *get_hadjustment (ModestGtkhtmlMsgView *self);
 220 static void set_vadjustment (ModestGtkhtmlMsgView *self, GtkAdjustment *vadj);
 221 static void set_hadjustment (ModestGtkhtmlMsgView *self, GtkAdjustment *hadj);
 222 static void set_shadow_type (ModestGtkhtmlMsgView *self, GtkShadowType type);
 223 static GtkShadowType get_shadow_type (ModestGtkhtmlMsgView *self);
 224 static TnyHeaderFlags get_priority (ModestGtkhtmlMsgView *self);
 225 static void set_priority (ModestGtkhtmlMsgView *self, TnyHeaderFlags flags);
 226 static TnyList *get_selected_attachments (ModestGtkhtmlMsgView *self);
 227 static TnyList *get_attachments (ModestGtkhtmlMsgView *self);
 228 static void grab_focus (ModestGtkhtmlMsgView *self);
 229 static void remove_attachment (ModestGtkhtmlMsgView *view, TnyMimePart *attachment);
 230 static void request_fetch_images (ModestGtkhtmlMsgView *view);
 231 static void set_branding (ModestGtkhtmlMsgView *view, const gchar *brand_name, const GdkPixbuf *brand_icon);
 232 static gboolean has_blocked_external_images (ModestGtkhtmlMsgView *view);
 233
 234 /* list properties */
 235 enum {
 236         PROP_0,
 237         PROP_HADJUSTMENT,
 238         PROP_VADJUSTMENT,
 239         PROP_SHADOW_TYPE
 240 };
 241
 242 typedef struct _ModestGtkhtmlMsgViewPrivate ModestGtkhtmlMsgViewPrivate;
 243 struct _ModestGtkhtmlMsgViewPrivate {
 244         GtkWidget   *body_view;
 245         GtkWidget   *mail_header_view;
 246         GtkWidget   *attachments_view;
 247
 248         TnyMsg      *msg;
 249
 250         /* embedded elements */
 251         GtkWidget   *headers_box;
 252         GtkWidget   *html_scroll;
 253         GtkWidget   *attachments_box;
 254
 255 #ifdef MODEST_TOOLKIT_HILDON2
 256         GtkWidget   *priority_box;
 257         GtkWidget   *priority_icon;
 258 #endif
 259
 260         /* internal adjustments for set_scroll_adjustments */
 261         GtkAdjustment *hadj;
 262         GtkAdjustment *vadj;
 263         GtkShadowType shadow_type;
 264
 265         /* gdk windows for drawing */
 266         GdkWindow *view_window;
 267         GdkWindow *headers_window;
 268         GdkWindow *html_window;
 269
 270         /* id handler for dragged scroll */
 271         guint idle_motion_id;
 272
 273         /* zoom */
 274         gdouble current_zoom;
 275
 276         /* link click management */
 277         gchar *last_url;
 278 };
 279
 280 #define MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
 281                                                                                  MODEST_TYPE_GTKHTML_MSG_VIEW, \
 282                                                                                  ModestGtkhtmlMsgViewPrivate))
 283
 284 /* globals */
 285 static GtkContainerClass *parent_class = NULL;
 286
 287 GType
 288 modest_gtkhtml_msg_view_get_type (void)
 289 {
 290         static GType my_type = 0;
 291         if (!my_type) {
 292                 static const GTypeInfo my_info = {
 293                         sizeof(ModestGtkhtmlMsgViewClass),
 294                         NULL,           /* base init */
 295                         NULL,           /* base finalize */
 296                         (GClassInitFunc) modest_gtkhtml_msg_view_class_init,
 297                         NULL,           /* class finalize */
 298                         NULL,           /* class data */
 299                         sizeof(ModestGtkhtmlMsgView),
 300                         1,              /* n_preallocs */
 301                         (GInstanceInitFunc) modest_gtkhtml_msg_view_init,
 302                         NULL
 303                 };
 304                 static const GInterfaceInfo tny_msg_view_info =
 305                 {
 306                   (GInterfaceInitFunc) tny_msg_view_init, /* interface_init */
 307                   NULL,         /* interface_finalize */
 308                   NULL          /* interface_data */
 309                 };
 310
 311                 static const GInterfaceInfo tny_mime_part_view_info =
 312                 {
 313                   (GInterfaceInitFunc) tny_mime_part_view_init, /* interface_init */
 314                   NULL,         /* interface_finalize */
 315                   NULL          /* interface_data */
 316                 };
 317
 318                 static const GInterfaceInfo tny_header_view_info =
 319                 {
 320                   (GInterfaceInitFunc) tny_header_view_init, /* interface_init */
 321                   NULL,         /* interface_finalize */
 322                   NULL          /* interface_data */
 323                 };
 324
 325                 static const GInterfaceInfo modest_mime_part_view_info =
 326                 {
 327                   (GInterfaceInitFunc) modest_mime_part_view_init, /* interface_init */
 328                   NULL,         /* interface_finalize */
 329                   NULL          /* interface_data */
 330                 };
 331
 332                 static const GInterfaceInfo modest_zoomable_info =
 333                 {
 334                   (GInterfaceInitFunc) modest_zoomable_init, /* interface_init */
 335                   NULL,         /* interface_finalize */
 336                   NULL          /* interface_data */
 337                 };
 338
 339                 static const GInterfaceInfo modest_isearch_view_info =
 340                 {
 341                   (GInterfaceInitFunc) modest_isearch_view_init, /* interface_init */
 342                   NULL,         /* interface_finalize */
 343                   NULL          /* interface_data */
 344                 };
 345
 346                 static const GInterfaceInfo modest_msg_view_info =
 347                 {
 348                   (GInterfaceInitFunc) modest_msg_view_init, /* interface_init */
 349                   NULL,         /* interface_finalize */
 350                   NULL          /* interface_data */
 351                 };
 352
 353                 my_type = g_type_register_static (GTK_TYPE_CONTAINER,
 354                                                   "ModestGtkhtmlMsgView",
 355                                                   &my_info, 0);
 356
 357                 g_type_add_interface_static (my_type, TNY_TYPE_HEADER_VIEW,
 358                         &tny_header_view_info);
 359
 360                 g_type_add_interface_static (my_type, TNY_TYPE_MIME_PART_VIEW,
 361                         &tny_mime_part_view_info);
 362
 363                 g_type_add_interface_static (my_type, MODEST_TYPE_MIME_PART_VIEW,
 364                         &modest_mime_part_view_info);
 365
 366                 g_type_add_interface_static (my_type, TNY_TYPE_MSG_VIEW,
 367                         &tny_msg_view_info);
 368
 369                 g_type_add_interface_static (my_type, MODEST_TYPE_ZOOMABLE,
 370                         &modest_zoomable_info);
 371
 372                 g_type_add_interface_static (my_type, MODEST_TYPE_ISEARCH_VIEW,
 373                         &modest_isearch_view_info);
 374
 375                 g_type_add_interface_static (my_type, MODEST_TYPE_MSG_VIEW,
 376                         &modest_msg_view_info);
 377         }
 378         return my_type;
 379 }
 380
 381 static void
 382 modest_gtkhtml_msg_view_class_init (ModestGtkhtmlMsgViewClass *klass)
 383 {
 384         GObjectClass *gobject_class;
 385         GtkWidgetClass *widget_class;
 386         GtkObjectClass *gtkobject_class;
 387         GtkContainerClass *container_class;
 388         gobject_class = (GObjectClass*) klass;
 389         widget_class = (GtkWidgetClass *) klass;
 390         gtkobject_class = (GtkObjectClass *) klass;
 391         container_class = (GtkContainerClass *) klass;
 392
 393         parent_class            = g_type_class_peek_parent (klass);
 394         gobject_class->finalize = modest_gtkhtml_msg_view_finalize;
 395         gobject_class->set_property = set_property;
 396         gobject_class->get_property = get_property;
 397         gtkobject_class->destroy = modest_gtkhtml_msg_view_destroy;
 398
 399         widget_class->realize = realize;
 400         widget_class->unrealize = unrealize;
 401         widget_class->expose_event = expose;
 402         widget_class->size_request = size_request;
 403         widget_class->size_allocate = size_allocate;
 404
 405         container_class->forall = forall;
 406         container_class->remove = container_remove;
 407
 408         klass->set_header_func = modest_msg_view_set_header_default;
 409         klass->clear_header_func = modest_msg_view_clear_header_default;
 410         klass->set_scroll_adjustments = set_scroll_adjustments;
 411         klass->get_part_func = modest_msg_view_mp_get_part_default;
 412         klass->set_part_func = modest_msg_view_mp_set_part_default;
 413         klass->is_empty_func = modest_msg_view_mp_is_empty_default;
 414         klass->get_msg_func = modest_msg_view_get_msg_default;
 415         klass->set_msg_func = modest_msg_view_set_msg_default;
 416         klass->set_unavailable_func = modest_msg_view_set_unavailable_default;
 417         klass->clear_func = modest_msg_view_clear_default;
 418         klass->create_mime_part_view_for_func = modest_msg_view_create_mime_part_view_for_default;
 419         klass->create_new_inline_viewer_func = modest_msg_view_create_new_inline_viewer_default;
 420         klass->get_zoom_func = modest_msg_view_get_zoom_default;
 421         klass->set_zoom_func = modest_msg_view_set_zoom_default;
 422         klass->zoom_minus_func = modest_msg_view_zoom_minus_default;
 423         klass->zoom_plus_func = modest_msg_view_zoom_plus_default;
 424         klass->search_func = modest_msg_view_search_default;
 425         klass->search_next_func = modest_msg_view_search_next_default;
 426         klass->set_msg_with_other_body_func = modest_gtkhtml_msg_view_set_msg_with_other_body_default;
 427         klass->get_vadjustment_func = modest_gtkhtml_msg_view_get_vadjustment_default;
 428         klass->get_hadjustment_func = modest_gtkhtml_msg_view_get_hadjustment_default;
 429         klass->set_vadjustment_func = modest_gtkhtml_msg_view_set_vadjustment_default;
 430         klass->set_hadjustment_func = modest_gtkhtml_msg_view_set_hadjustment_default;
 431         klass->get_shadow_type_func = modest_gtkhtml_msg_view_get_shadow_type_default;
 432         klass->set_shadow_type_func = modest_gtkhtml_msg_view_set_shadow_type_default;
 433         klass->get_priority_func = modest_gtkhtml_msg_view_get_priority_default;
 434         klass->set_priority_func = modest_gtkhtml_msg_view_set_priority_default;
 435         klass->get_selected_attachments_func = modest_gtkhtml_msg_view_get_selected_attachments_default;
 436         klass->get_attachments_func = modest_gtkhtml_msg_view_get_attachments_default;
 437         klass->grab_focus_func = modest_gtkhtml_msg_view_grab_focus_default;
 438         klass->remove_attachment_func = modest_gtkhtml_msg_view_remove_attachment_default;
 439         klass->request_fetch_images_func = modest_gtkhtml_msg_view_request_fetch_images_default;
 440         klass->set_branding_func = modest_gtkhtml_msg_view_set_branding_default;
 441         klass->has_blocked_external_images_func = modest_gtkhtml_msg_view_has_blocked_external_images_default;
 442
 443         g_type_class_add_private (gobject_class, sizeof(ModestGtkhtmlMsgViewPrivate));
 444
 445         g_object_class_install_property (gobject_class,
 446                                          PROP_HADJUSTMENT,
 447                                          g_param_spec_object ("hadjustment",
 448                                                               _("Horizontal adjustment"),
 449                                                               _("GtkAdjustment with information of the horizontal visible position"),
 450                                                               GTK_TYPE_ADJUSTMENT,
 451                                                               G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
 452
 453         g_object_class_install_property (gobject_class,
 454                                          PROP_VADJUSTMENT,
 455                                          g_param_spec_object ("vadjustment",
 456                                                               _("Vertical adjustment"),
 457                                                               _("GtkAdjustment with information of the vertical visible position"),
 458                                                               GTK_TYPE_ADJUSTMENT,
 459                                                               G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
 460
 461         g_object_class_install_property (gobject_class,
 462                                          PROP_SHADOW_TYPE,
 463                                          g_param_spec_enum ("shadow_type",
 464                                                             _("Shadow type"),
 465                                                             _("Kind of shadow that's shown around the view"),
 466                                                             GTK_TYPE_SHADOW_TYPE,
 467                                                             GTK_SHADOW_IN,
 468                                                             G_PARAM_READABLE | G_PARAM_WRITABLE ));
 469
 470         widget_class->set_scroll_adjustments_signal =
 471                 g_signal_new ("set_scroll_adjustments",
 472                               G_OBJECT_CLASS_TYPE (gobject_class),
 473                               G_SIGNAL_RUN_LAST|G_SIGNAL_ACTION,
 474                               G_STRUCT_OFFSET (ModestGtkhtmlMsgViewClass, set_scroll_adjustments),
 475                               NULL, NULL,
 476                               modest_marshal_VOID__POINTER_POINTER,
 477                               G_TYPE_NONE, 2,
 478                               GTK_TYPE_ADJUSTMENT,
 479                               GTK_TYPE_ADJUSTMENT);
 480 }
 481
 482 static void
 483 set_property (GObject *object,
 484               guint prop_id,
 485               const GValue *value,
 486               GParamSpec *pspec)
 487 {
 488         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (object);
 489
 490         switch (prop_id) {
 491         case PROP_HADJUSTMENT:
 492                 set_hadjustment (self, g_value_get_object (value));
 493                 break;
 494         case PROP_VADJUSTMENT:
 495                 set_vadjustment (self, g_value_get_object (value));
 496                 break;
 497         case PROP_SHADOW_TYPE:
 498                 set_shadow_type (self, g_value_get_enum (value));
 499                 break;
 500         default:
 501                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 502                 break;
 503         }
 504 }
 505
 506 static void
 507 get_property (GObject *object,
 508               guint prop_id,
 509               GValue *value,
 510               GParamSpec *pspec)
 511 {
 512         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (object);
 513         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 514
 515         switch (prop_id) {
 516         case PROP_HADJUSTMENT:
 517                 g_value_set_object (value, priv->hadj);
 518                 break;
 519         case PROP_VADJUSTMENT:
 520                 g_value_set_object (value, priv->vadj);
 521                 break;
 522         case PROP_SHADOW_TYPE:
 523                 g_value_set_enum (value, priv->shadow_type);
 524                 break;
 525         default:
 526                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 527                 break;
 528         }
 529 }
 530
 531 static void
 532 disconnect_hadjustment (ModestGtkhtmlMsgView *self)
 533 {
 534         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 535
 536         if (priv->hadj) {
 537                 g_signal_handlers_disconnect_by_func(priv->hadj, adjustment_value_changed, self);
 538                 g_object_unref (priv->hadj);
 539                 priv->hadj = NULL;
 540         }
 541 }
 542
 543 static void
 544 disconnect_vadjustment (ModestGtkhtmlMsgView *self)
 545 {
 546         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 547
 548         if (priv->vadj) {
 549                 g_signal_handlers_disconnect_by_func(priv->vadj, adjustment_value_changed, self);
 550                 g_object_unref (priv->vadj);
 551                 priv->vadj = NULL;
 552         }
 553 }
 554
 555 static void
 556 get_view_allocation (ModestGtkhtmlMsgView *self, GtkAllocation *allocation)
 557 {
 558         /* This method gets the allocation of the widget in parent widget. It's the
 559            real position and size of the widget */
 560         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 561
 562         allocation->x = 0;
 563         allocation->y = 0;
 564
 565         if (priv->shadow_type != GTK_SHADOW_NONE) {
 566                 allocation->x = GTK_WIDGET (self)->style->xthickness;
 567                 allocation->y = GTK_WIDGET (self)->style->ythickness;
 568         }
 569
 570         allocation->width = MAX (1, (GTK_WIDGET (self)->allocation.width) - allocation->x * 2);
 571         allocation->height = MAX (1, (GTK_WIDGET (self)->allocation.height) - allocation->y * 2);
 572
 573 }
 574
 575 static void
 576 reclamp_adjustment (GtkAdjustment *adj,
 577                     gboolean *value_changed)
 578 {
 579         gdouble value = adj->value;
 580
 581         /* Correct value to be inside the expected values of a scroll */
 582
 583         value = CLAMP (value, 0, adj->upper - adj->page_size);
 584
 585         if (value != adj->value) {
 586                 adj->value = value;
 587                 if (value_changed)
 588                         *value_changed = TRUE;
 589         } else if (value_changed) {
 590                 *value_changed = FALSE;
 591         }
 592 }
 593
 594 static void
 595 set_hadjustment_values (ModestGtkhtmlMsgView *self,
 596                         gboolean *value_changed)
 597 {
 598         GtkAllocation view_allocation;
 599         GtkAdjustment *hadj = get_hadjustment (self);
 600         gint full_width = 0;
 601         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 602
 603         get_view_allocation (self, &view_allocation);
 604         hadj->page_size = view_allocation.width;
 605         hadj->step_increment = view_allocation.width * 0.1;
 606         hadj->page_increment = view_allocation.width * 0.9;
 607
 608         hadj->lower = 0;
 609         hadj->upper = view_allocation.width;
 610
 611         /* Get the real width of the embedded html */
 612         if (priv->html_scroll && GTK_WIDGET_VISIBLE(priv->html_scroll)) {
 613                 GtkAdjustment *html_hadj;
 614                 html_hadj = gtk_scrolled_window_get_hadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
 615                 full_width += html_hadj->upper;
 616         }
 617
 618         hadj->upper = MAX (view_allocation.width, full_width);
 619
 620         reclamp_adjustment (hadj, value_changed);
 621
 622 }
 623
 624 static void
 625 set_vadjustment_values (ModestGtkhtmlMsgView *self,
 626                         gboolean *value_changed)
 627 {
 628         GtkAllocation view_allocation;
 629         GtkAdjustment *vadj = get_vadjustment (self);
 630         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 631         gint full_height = 0;
 632         GtkAdjustment *html_vadj;
 633
 634         get_view_allocation (self, &view_allocation);
 635         vadj->page_size = view_allocation.height;
 636         vadj->step_increment = view_allocation.height * 0.1;
 637         vadj->page_increment = view_allocation.height * 0.9;
 638
 639         vadj->lower = 0;
 640
 641         if (priv->headers_box && GTK_WIDGET_VISIBLE(priv->headers_box)) {
 642                 GtkRequisition child_requisition;
 643
 644                 gtk_widget_get_child_requisition (priv->headers_box, &child_requisition);
 645                 full_height = child_requisition.height;
 646         } else {
 647                 full_height = 0;
 648         }
 649
 650         /* Get the real height of the embedded html */
 651         if (priv->html_scroll && GTK_WIDGET_VISIBLE(priv->html_scroll)) {
 652                 html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
 653                 full_height += html_vadj->upper;
 654         }
 655
 656         vadj->upper = MAX (view_allocation.height, full_height);
 657
 658         reclamp_adjustment (vadj, value_changed);
 659
 660 }
 661
 662 static void
 663 set_scroll_adjustments (ModestGtkhtmlMsgView *self,
 664                         GtkAdjustment *hadj,
 665                         GtkAdjustment *vadj)
 666 {
 667         set_hadjustment (self, hadj);
 668         set_vadjustment (self, vadj);
 669
 670 #ifndef MODEST_TOOLKIT_HILDON2
 671         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 672         gtk_container_set_focus_vadjustment (GTK_CONTAINER (priv->body_view), vadj);
 673 #endif
 674 }
 675
 676 static void
 677 realize (GtkWidget *widget)
 678 {
 679         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (widget);
 680         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 681         GtkAdjustment *hadj = get_hadjustment (self);
 682         GtkAdjustment *vadj = get_vadjustment (self);
 683         GdkWindowAttr attributes;
 684         gint event_mask;
 685         gint attributes_mask;
 686         GtkAllocation view_allocation;
 687
 688         GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 689
 690         /* The structure of the GdkWindow's is:
 691          *    * widget->window: the shown gdkwindow embedding all the stuff inside
 692          *    * view_window: a backing store gdkwindow containing the headers and contents
 693          *      being scrolled. This window should have all the visible and non visible
 694          *      widgets inside.
 695          *    * headers_window: gdk window for headers_box.
 696          *    * html_window: gdk window for html_scroll (the scrolled window containing the
 697          *      body view showing the contents of the mail).
 698          */
 699
 700         attributes.x = widget->allocation.x;
 701         attributes.y = widget->allocation.y;
 702         attributes.width = widget->allocation.width;
 703         attributes.height = widget->allocation.height;
 704         attributes.window_type = GDK_WINDOW_CHILD;
 705         attributes.wclass = GDK_INPUT_OUTPUT;
 706         attributes.visual = gtk_widget_get_visual (widget);
 707         attributes.colormap = gtk_widget_get_colormap (widget);
 708
 709         event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
 710         attributes.event_mask = event_mask | GDK_BUTTON_PRESS_MASK;
 711         attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
 712
 713         widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
 714                                          &attributes, attributes_mask);
 715         gdk_window_set_user_data (widget->window, self);
 716
 717         get_view_allocation (self, &view_allocation);
 718
 719         attributes.x = view_allocation.x;
 720         attributes.y = view_allocation.y;
 721         attributes.width = view_allocation.width;
 722         attributes.height = view_allocation.height;
 723         attributes.event_mask = 0;
 724         priv->view_window = gdk_window_new (widget->window, &attributes, attributes_mask);
 725         gdk_window_set_user_data (priv->view_window, self);
 726         gdk_window_set_back_pixmap (priv->view_window, NULL, FALSE);
 727
 728         attributes.x = -hadj->value;
 729         attributes.y = -vadj->value;
 730         attributes.width = hadj->upper;
 731         if (priv->headers_box)
 732                 attributes.height = GTK_WIDGET (priv->headers_box)->allocation.height;
 733         else
 734                 attributes.height = 1;
 735         attributes.event_mask = event_mask;
 736
 737         priv->headers_window = gdk_window_new (priv->view_window, &attributes, attributes_mask);
 738         gdk_window_set_user_data (priv->headers_window, self);
 739
 740         if (priv->headers_box)
 741                 gtk_widget_set_parent_window (priv->headers_box, priv->headers_window);
 742
 743         attributes.x = -hadj->value;
 744         if (priv->headers_box)
 745                 attributes.y = GTK_WIDGET (priv->headers_box)->allocation.height - vadj->value;
 746         else
 747                 attributes.y = -vadj->value;
 748         attributes.width = hadj->upper;
 749         if (priv->headers_box)
 750                 attributes.height = vadj->upper - GTK_WIDGET (priv->headers_box)->allocation.height;
 751         else
 752                 attributes.height = vadj->upper;
 753         attributes.event_mask = event_mask;
 754
 755         priv->html_window = gdk_window_new (priv->view_window, &attributes, attributes_mask);
 756         gdk_window_set_user_data (priv->html_window, self);
 757
 758         if (priv->html_scroll)
 759                 gtk_widget_set_parent_window (priv->html_scroll, priv->html_window);
 760
 761         widget->style = gtk_style_attach (widget->style, widget->window);
 762         gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
 763         gtk_style_set_background (widget->style, priv->headers_window, GTK_STATE_NORMAL);
 764         gtk_style_set_background (widget->style, priv->html_window, GTK_STATE_NORMAL);
 765
 766         gtk_paint_flat_box(widget->style, priv->headers_window, GTK_STATE_NORMAL,
 767                            GTK_SHADOW_NONE,
 768                            NULL, widget, "msgviewheaders",
 769                            0,0,-1,-1);
 770         gtk_paint_flat_box(widget->style, priv->html_window, GTK_STATE_NORMAL,
 771                            GTK_SHADOW_NONE,
 772                            NULL, widget, "msgviewcontents",
 773                            0,0,-1,-1);
 774
 775         gdk_window_show (priv->view_window);
 776         gdk_window_show (priv->headers_window);
 777         gdk_window_show (priv->html_window);
 778
 779 }
 780
 781 static void
 782 unrealize (GtkWidget *widget)
 783 {
 784         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (widget);
 785         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 786
 787         gdk_window_set_user_data (priv->view_window, NULL);
 788         gdk_window_destroy (priv->view_window);
 789         priv->view_window = NULL;
 790
 791         gdk_window_set_user_data (priv->headers_window, NULL);
 792         gdk_window_destroy (priv->headers_window);
 793         priv->headers_window = NULL;
 794
 795         gdk_window_set_user_data (priv->html_window, NULL);
 796         gdk_window_destroy (priv->html_window);
 797         priv->html_window = NULL;
 798
 799         if (GTK_WIDGET_CLASS (parent_class)->unrealize)
 800                 ( * GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
 801
 802 }
 803
 804 static gint
 805 expose (GtkWidget *widget,
 806         GdkEventExpose *event)
 807 {
 808         ModestGtkhtmlMsgView *self;
 809         ModestGtkhtmlMsgViewPrivate *priv;
 810
 811         if (GTK_WIDGET_DRAWABLE (widget)) {
 812                 self = MODEST_GTKHTML_MSG_VIEW (widget);
 813                 priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 814                 if (event->window == widget->window) {
 815                         gtk_paint_shadow (widget->style, widget->window,
 816                                           GTK_STATE_NORMAL, priv->shadow_type,
 817                                           &event->area, widget, "msgview",
 818                                           0,0,-1,-1);
 819                 } else if (event->window == priv->headers_window) {
 820                         gtk_paint_flat_box(widget->style, priv->headers_window, GTK_STATE_NORMAL,
 821                                            GTK_SHADOW_NONE,
 822                                            &event->area, widget, "msgviewheaders",
 823                                            0,0,-1,-1);
 824                 } else if (event->window == priv->html_window) {
 825                         gtk_paint_flat_box(widget->style, priv->html_window, GTK_STATE_NORMAL,
 826                                            GTK_SHADOW_NONE,
 827                                            &event->area, widget, "msgviewcontents",
 828                                            0,0,-1,-1);
 829                 }
 830                 if (priv->headers_box)
 831                         gtk_container_propagate_expose (GTK_CONTAINER (self), priv->headers_box, event);
 832                 if (priv->html_scroll)
 833                         gtk_container_propagate_expose (GTK_CONTAINER (self), priv->html_scroll, event);
 834                 (* GTK_WIDGET_CLASS (parent_class)->expose_event) (widget, event);
 835         }
 836
 837         return FALSE;
 838 }
 839
 840 static void
 841 forall (GtkContainer *container,
 842         gboolean include_internals,
 843         GtkCallback callback,
 844         gpointer userdata)
 845 {
 846         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (container);
 847         g_return_if_fail (callback != NULL);
 848
 849         if (priv->headers_box)
 850                 (*callback) (priv->headers_box, userdata);
 851         if (priv->html_scroll)
 852                 (*callback) (priv->html_scroll, userdata);
 853 }
 854
 855 static void
 856 container_remove (GtkContainer *container,
 857                   GtkWidget *widget)
 858 {
 859         gboolean was_visible = FALSE;
 860         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (container);
 861         was_visible = GTK_WIDGET_VISIBLE (widget);
 862         if (widget == priv->headers_box) {
 863                 gtk_widget_unparent (priv->headers_box);
 864                 priv->headers_box = NULL;
 865         } else if (widget == priv->html_scroll) {
 866                 gtk_widget_unparent (priv->html_scroll);
 867                 priv->html_scroll = NULL;
 868         } else {
 869                 return;
 870         }
 871         if (was_visible)
 872                 gtk_widget_queue_resize (GTK_WIDGET(container));
 873
 874 }
 875
 876 static void
 877 size_request (GtkWidget *widget,
 878               GtkRequisition *req)
 879 {
 880         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (widget);
 881         GtkRequisition child_req;
 882
 883         req->width = 0;
 884         req->height = 0;
 885
 886         gtk_widget_size_request (priv->headers_box, &child_req);
 887         req->width = child_req.width;
 888         req->height += child_req.height;
 889         gtk_widget_size_request (priv->html_scroll, &child_req);
 890         req->width = MAX (child_req.width, req->width);
 891         req->height += child_req.height;
 892
 893 }
 894
 895 static void
 896 size_allocate (GtkWidget *widget,
 897                GtkAllocation *allocation)
 898 {
 899         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (widget);
 900         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 901         gboolean hadj_value_changed, vadj_value_changed;
 902         GtkAllocation headers_allocation, html_allocation, view_allocation;
 903         GtkAdjustment *html_vadj;
 904
 905         if (GTK_WIDGET_MAPPED (widget) &&
 906             priv->shadow_type != GTK_SHADOW_NONE &&
 907             (allocation->width != widget->allocation.width ||
 908              allocation->height != widget->allocation.height))
 909                 gdk_window_invalidate_rect (widget->window, NULL, FALSE);
 910
 911         widget->allocation = *allocation;
 912         set_hadjustment_values (self, &hadj_value_changed);
 913         set_vadjustment_values (self, &vadj_value_changed);
 914
 915         get_view_allocation (self, &view_allocation);
 916
 917         headers_allocation.x = 0;
 918         headers_allocation.y = 0;
 919         headers_allocation.width = view_allocation.width;
 920         if (priv->headers_box)
 921                 headers_allocation.height = GTK_WIDGET (priv->headers_box)->requisition.height;
 922         else
 923                 headers_allocation.height = 0;
 924
 925         html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
 926
 927         html_allocation.x = 0;
 928         html_allocation.y = headers_allocation.height;
 929         html_allocation.width = view_allocation.width;
 930         html_allocation.height = MAX ((gint) html_vadj->upper, (gint)(priv->vadj->upper - headers_allocation.height));
 931
 932         if (GTK_WIDGET_REALIZED (widget)) {
 933                 gdk_window_move_resize (widget->window,
 934                                         allocation->x,
 935                                         allocation->y,
 936                                         allocation->width,
 937                                         allocation->height);
 938
 939                 gdk_window_move_resize (priv->view_window,
 940                                         view_allocation.x,
 941                                         view_allocation.y,
 942                                         view_allocation.width,
 943                                         view_allocation.height);
 944                 gdk_window_move_resize (priv->headers_window,
 945                                         0,
 946                                         (gint) (- priv->vadj->value),
 947                                         allocation->width,
 948                                         headers_allocation.height);
 949                 gdk_window_move_resize (priv->html_window,
 950                                         (gint) (- priv->hadj->value),
 951                                         (gint) (html_allocation.y - priv->vadj->value),
 952                                         (gint) priv->hadj->upper,
 953                                         html_allocation.height);
 954         }
 955
 956         if (priv->headers_box && GTK_WIDGET_VISIBLE (priv->headers_box)) {
 957                 gtk_widget_size_allocate (priv->headers_box, &headers_allocation);
 958         }
 959         if (priv->html_scroll && GTK_WIDGET_VISIBLE (priv->html_scroll)) {
 960                 html_allocation.x = 0;
 961                 html_allocation.y = 0;
 962                 html_allocation.width = (gint) priv->hadj->upper;
 963                 html_allocation.height = (gint) priv->vadj->upper - headers_allocation.height;
 964                 gtk_widget_size_allocate (priv->html_scroll, &html_allocation);
 965         }
 966         gtk_adjustment_changed (priv->hadj);
 967         gtk_adjustment_changed (priv->vadj);
 968
 969         if (hadj_value_changed)
 970                 gtk_adjustment_value_changed (priv->hadj);
 971         if (vadj_value_changed)
 972                 gtk_adjustment_value_changed (priv->vadj);
 973
 974 }
 975
 976 static void
 977 adjustment_value_changed (GtkAdjustment *adj, gpointer data)
 978 {
 979         ModestGtkhtmlMsgView *self = NULL;
 980         ModestGtkhtmlMsgViewPrivate *priv = NULL;
 981
 982         g_return_if_fail (GTK_IS_ADJUSTMENT (adj));
 983         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (data));
 984
 985         self = MODEST_GTKHTML_MSG_VIEW (data);
 986         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
 987
 988         if (GTK_WIDGET_REALIZED (self)) {
 989                 GtkAdjustment *hadj = get_hadjustment (self);
 990                 GtkAdjustment *vadj = get_vadjustment (self);
 991                 gint headers_offset = 0;
 992
 993                 gtk_widget_queue_resize (priv->html_scroll);
 994
 995                 if (priv->headers_box && GTK_WIDGET_VISIBLE (priv->headers_box)) {
 996                         gint old_x, old_y;
 997                         gint new_x, new_y;
 998                         gdk_window_get_position (priv->headers_window, &old_x, &old_y);
 999                         new_x = 0;
1000                         new_y = -vadj->value;
1001
1002                         headers_offset = GTK_WIDGET(priv->headers_box)->allocation.height;
1003
1004                         if (new_x != old_x || new_y != old_y) {
1005                                 gdk_window_move (priv->headers_window, new_x, new_y);
1006                                 gdk_window_process_updates (priv->headers_window, TRUE);
1007                         }
1008                 }
1009
1010                 if (priv->html_scroll && GTK_WIDGET_VISIBLE (priv->html_scroll)) {
1011                         gint old_x, old_y;
1012                         gint new_x, new_y;
1013                         gdk_window_get_position (priv->html_window, &old_x, &old_y);
1014                         new_x = -hadj->value;
1015                         new_y = headers_offset - vadj->value;
1016
1017                         if (new_x != old_x || new_y != old_y) {
1018                                 gdk_window_move (priv->html_window, new_x, new_y);
1019                                 gdk_window_process_updates (priv->html_window, TRUE);
1020                         }
1021                 }
1022
1023         }
1024 }
1025
1026 static void
1027 html_adjustment_changed (GtkAdjustment *adj,
1028                          gpointer userdata)
1029 {
1030         ModestGtkhtmlMsgView *self = MODEST_GTKHTML_MSG_VIEW (userdata);
1031         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1032         GtkAdjustment *html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW(priv->html_scroll));
1033         gboolean vadj_changed;
1034         gint new_height;
1035
1036         g_signal_stop_emission_by_name (G_OBJECT (adj), "changed");
1037
1038         priv->html_scroll->requisition.height = html_vadj->upper;
1039         if (html_vadj->upper == priv->html_scroll->allocation.height)
1040                 return;
1041         priv->html_scroll->allocation.height = html_vadj->upper;
1042
1043         set_vadjustment_values (self, &vadj_changed);
1044
1045         new_height = MAX ((gint) html_vadj->upper, (gint) (priv->vadj->upper - priv->headers_box->allocation.height));
1046
1047         gtk_adjustment_changed (priv->vadj);
1048         if (GTK_WIDGET_DRAWABLE (priv->html_scroll)) {
1049                 gdk_window_resize (priv->html_window, (gint) priv->hadj->upper, (gint) new_height);
1050                 gdk_window_process_updates (priv->view_window, TRUE);
1051                 gtk_container_resize_children (GTK_CONTAINER (self));
1052         }
1053
1054 }
1055
1056 gboolean
1057 idle_readjust_scroll (ModestGtkhtmlMsgView *self)
1058 {
1059
1060         /* We're out the main lock */
1061         gdk_threads_enter ();
1062
1063         if (GTK_WIDGET_DRAWABLE (self)) {
1064                 ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1065                 GtkAdjustment *html_vadj;
1066                 html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
1067                 html_vadj->page_size = html_vadj->upper;
1068                 gtk_adjustment_changed (html_vadj);
1069                 gtk_widget_queue_resize (GTK_WIDGET (self));
1070                 gtk_widget_queue_draw (GTK_WIDGET (self));
1071
1072                 /* Just another hack for making readjust really work. This forces an update
1073                  * of the scroll, and then, make the scroll really update properly the
1074                  * the size and not corrupt scrollable area */
1075                 gtk_adjustment_set_value (priv->vadj, 1.0);
1076                 gtk_adjustment_set_value (priv->vadj, 0.0);
1077         }
1078         g_object_unref (G_OBJECT (self));
1079
1080         gdk_threads_leave ();
1081
1082         return FALSE;
1083 }
1084
1085 static void
1086 modest_gtkhtml_msg_view_init (ModestGtkhtmlMsgView *obj)
1087 {
1088         ModestGtkhtmlMsgViewPrivate *priv;
1089         GtkAdjustment *html_vadj;
1090
1091         GTK_WIDGET_UNSET_FLAGS (obj, GTK_NO_WINDOW);
1092         gtk_widget_set_redraw_on_allocate (GTK_WIDGET (obj), TRUE);
1093         gtk_container_set_reallocate_redraws (GTK_CONTAINER (obj), TRUE);
1094         gtk_container_set_resize_mode (GTK_CONTAINER (obj), GTK_RESIZE_QUEUE);
1095
1096         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE(obj);
1097
1098         priv->current_zoom = 1.0;
1099
1100         priv->hadj = NULL;
1101         priv->vadj = NULL;
1102         priv->shadow_type = GTK_SHADOW_IN;
1103         priv->view_window = NULL;
1104         priv->headers_window = NULL;
1105         priv->html_window = NULL;
1106
1107         priv->idle_motion_id = 0;
1108
1109         gtk_widget_push_composite_child ();
1110         priv->html_scroll = gtk_scrolled_window_new (NULL, NULL);
1111         gtk_widget_set_composite_name (priv->html_scroll, "contents");
1112         gtk_widget_pop_composite_child ();
1113         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->html_scroll), GTK_POLICY_NEVER, GTK_POLICY_NEVER);
1114
1115         priv->msg                     = NULL;
1116
1117         priv->body_view                 = GTK_WIDGET (g_object_new (MODEST_TYPE_GTKHTML_MIME_PART_VIEW, NULL));
1118 #ifdef MODEST_TOOLKIT_HILDON2
1119         priv->mail_header_view        = GTK_WIDGET(modest_compact_mail_header_view_new ());
1120 #else
1121         priv->mail_header_view        = GTK_WIDGET(modest_expander_mail_header_view_new (TRUE));
1122 #endif
1123         gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
1124         priv->attachments_view        = GTK_WIDGET(modest_attachments_view_new (NULL));
1125 #ifdef MODEST_TOOLKIT_HILDON2
1126         modest_attachments_view_set_style (MODEST_ATTACHMENTS_VIEW (priv->attachments_view),
1127                                            MODEST_ATTACHMENTS_VIEW_STYLE_LINKS);
1128 #else
1129         modest_attachments_view_set_style (MODEST_ATTACHMENTS_VIEW (priv->attachments_view),
1130                                            MODEST_ATTACHMENTS_VIEW_STYLE_SELECTABLE);
1131 #endif
1132
1133         g_signal_connect (G_OBJECT(priv->body_view), "activate_link",
1134                                        G_CALLBACK(on_activate_link), obj);
1135         g_signal_connect (G_OBJECT(priv->body_view), "fetch_url",
1136                                        G_CALLBACK(on_fetch_url), obj);
1137         g_signal_connect (G_OBJECT(priv->body_view), "link_hover",
1138                                        G_CALLBACK(on_link_hover), obj);
1139         g_signal_connect (G_OBJECT(priv->body_view), "limit_error",
1140                           G_CALLBACK(on_limit_error), obj);
1141 #ifdef MAEMO_CHANGES
1142         g_signal_connect (G_OBJECT(priv->body_view), "motion-notify-event",
1143                           G_CALLBACK (motion_notify_event), obj);
1144 #endif
1145         g_signal_connect (G_OBJECT (priv->body_view), "button-press-event",
1146                           G_CALLBACK (button_press_event), obj);
1147         g_signal_connect (G_OBJECT (priv->body_view), "button-release-event",
1148                           G_CALLBACK (button_release_event), obj);
1149
1150         g_signal_connect (G_OBJECT (priv->mail_header_view), "recpt-activated",
1151                           G_CALLBACK (on_recpt_activated), obj);
1152         g_signal_connect (G_OBJECT (priv->mail_header_view), "show-details",
1153                           G_CALLBACK (on_show_details), obj);
1154
1155         g_signal_connect (G_OBJECT (priv->attachments_view), "activate",
1156                           G_CALLBACK (on_attachment_activated), obj);
1157
1158         html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW(priv->html_scroll));
1159
1160         g_signal_connect (G_OBJECT (html_vadj), "changed",
1161                           G_CALLBACK (html_adjustment_changed), obj);
1162
1163         gtk_widget_push_composite_child ();
1164         priv->headers_box = gtk_vbox_new (FALSE, MODEST_MARGIN_DEFAULT);
1165         gtk_widget_set_composite_name (priv->headers_box, "headers");
1166         gtk_widget_pop_composite_child ();
1167
1168         if (priv->mail_header_view)
1169                 gtk_box_pack_start (GTK_BOX(priv->headers_box), priv->mail_header_view, FALSE, FALSE, 0);
1170
1171 #ifdef MODEST_TOOLKIT_HILDON2
1172         priv->priority_icon = gtk_image_new ();
1173         gtk_misc_set_alignment (GTK_MISC (priv->priority_icon), 0.0, 0.5);
1174         if (priv->priority_icon) {
1175                 priv->priority_box = (GtkWidget *)
1176                         modest_mail_header_view_add_custom_header (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view),
1177                                                                    _("mcen_me_editor_message_priority"),
1178                                                                    priv->priority_icon,
1179                                                                    FALSE, FALSE);
1180
1181                 gtk_widget_hide_all (priv->priority_box);
1182         }
1183 #endif
1184         if (priv->attachments_view) {
1185 #ifndef MODEST_TOOLKIT_HILDON2
1186                 gchar *att_label = g_strconcat (_("mcen_me_viewer_attachments"), ":", NULL);
1187 #else
1188                 gchar *att_label = g_strconcat (_("mail_va_attachment"), ":", NULL);
1189 #endif
1190
1191                 priv->attachments_box = (GtkWidget *)
1192                         modest_mail_header_view_add_custom_header (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view),
1193                                                                    att_label,
1194                                                                    priv->attachments_view,
1195                                                                    FALSE, FALSE);
1196                 gtk_widget_hide_all (priv->attachments_box);
1197                 g_free (att_label);
1198         }
1199
1200 #ifndef MODEST_TOOLKIT_HILDON2
1201         separator = gtk_hseparator_new ();
1202         gtk_box_pack_start (GTK_BOX(priv->headers_box), separator, FALSE, FALSE, 0);
1203 #endif
1204
1205         gtk_widget_set_parent (priv->headers_box, GTK_WIDGET (obj));
1206
1207         if (priv->body_view) {
1208                 gtk_container_add (GTK_CONTAINER (priv->html_scroll), priv->body_view);
1209                 gtk_widget_set_parent (priv->html_scroll, GTK_WIDGET(obj));
1210 #ifdef MAEMO_CHANGES
1211                 gtk_widget_tap_and_hold_setup (GTK_WIDGET (priv->body_view), NULL, NULL, 0);
1212                 g_signal_connect (G_OBJECT (priv->body_view), "tap-and-hold", G_CALLBACK (on_tap_and_hold), obj);
1213                 g_signal_connect (G_OBJECT (priv->body_view), "tap-and-hold-query", G_CALLBACK (on_tap_and_hold_query), obj);
1214 #endif
1215         }
1216
1217 }
1218
1219
1220 static void
1221 modest_gtkhtml_msg_view_finalize (GObject *obj)
1222 {
1223         ModestGtkhtmlMsgViewPrivate *priv;
1224         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (obj);
1225
1226         if (priv->msg) {
1227                 g_object_unref (G_OBJECT(priv->msg));
1228                 priv->msg = NULL;
1229         }
1230
1231         if (priv->idle_motion_id > 0) {
1232                 g_source_remove (priv->idle_motion_id);
1233                 priv->idle_motion_id = 0;
1234         }
1235
1236         /* we cannot disconnect sigs, because priv->body_view is
1237          * already dead */
1238
1239         disconnect_vadjustment (MODEST_GTKHTML_MSG_VIEW(obj));
1240         disconnect_hadjustment (MODEST_GTKHTML_MSG_VIEW(obj));
1241
1242         priv->body_view = NULL;
1243         priv->attachments_view = NULL;
1244
1245         G_OBJECT_CLASS(parent_class)->finalize (obj);
1246 }
1247
1248 static void
1249 modest_gtkhtml_msg_view_destroy (GtkObject *obj)
1250 {
1251         disconnect_vadjustment (MODEST_GTKHTML_MSG_VIEW(obj));
1252         disconnect_hadjustment (MODEST_GTKHTML_MSG_VIEW(obj));
1253
1254         GTK_OBJECT_CLASS(parent_class)->destroy (obj);
1255 }
1256
1257 /* INTERNAL METHODS */
1258
1259 #ifdef MAEMO_CHANGES
1260 static gboolean
1261 motion_notify_event (GtkWidget *widget,
1262                      GdkEventMotion *event,
1263                      gpointer userdata)
1264 {
1265         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (userdata);
1266
1267         /* Use panning information in gtkhtml widget to support also vertical panning */
1268
1269         if (GTK_HTML (widget)->panning) {
1270                 gint y, dy;
1271                 gdouble value;
1272
1273                 gdk_window_get_pointer (GTK_LAYOUT (widget)->bin_window, NULL, &y, NULL);
1274                 dy = y - GTK_HTML (widget)->lasty;
1275                 value = priv->vadj->value - (gdouble) dy;
1276
1277                 if (value < priv->vadj->lower)
1278                         value = priv->vadj->lower;
1279                 else if (value > priv->vadj->upper - priv->vadj->page_size)
1280                         value = priv->vadj->upper - priv->vadj->page_size;
1281                 gtk_adjustment_set_value (priv->vadj, value);
1282
1283         }
1284         return FALSE;
1285 }
1286 #endif
1287
1288 static gboolean
1289 idle_motion (gpointer userdata)
1290 {
1291         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (userdata);
1292         if (GTK_HTML (priv->body_view)->in_selection_drag) {
1293                 gdouble offset;
1294                 GtkAdjustment *adj;
1295                 gint gdk_y;
1296                 gdk_window_get_pointer (gtk_widget_get_parent_window (priv->body_view), NULL, &gdk_y, NULL);
1297                 offset= (gdouble) (priv->headers_box->requisition.height + gdk_y);
1298                 adj = GTK_ADJUSTMENT (priv->vadj);
1299                 if (offset < adj->value + adj->step_increment) {
1300                         gtk_adjustment_set_value (adj, MAX (offset + adj->page_increment - adj->page_size, 0.0));
1301                 } else if (offset > adj->value + adj->page_increment) {
1302                         gtk_adjustment_set_value (adj, MIN (offset - adj->page_increment, adj->upper - adj->page_size));
1303                 }
1304                 gtk_widget_queue_resize (userdata);
1305         }
1306         return TRUE;
1307 }
1308
1309 static gboolean
1310 button_press_event (GtkWidget *widget,
1311                     GdkEventButton *event,
1312                     gpointer userdata)
1313 {
1314         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (userdata);
1315
1316         if (priv->idle_motion_id == 0) {
1317                 priv->idle_motion_id = g_timeout_add (200, idle_motion, userdata);
1318         }
1319         return FALSE;
1320 }
1321
1322 static gboolean
1323 button_release_event (GtkWidget *widget,
1324                       GdkEventButton *event,
1325                       gpointer userdata)
1326 {
1327         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (userdata);
1328
1329         if (priv->idle_motion_id > 0) {
1330                 gint gdk_y;
1331                 g_source_remove (priv->idle_motion_id);
1332
1333                 priv->idle_motion_id = 0;;
1334                 gdk_window_get_pointer (gtk_widget_get_parent_window (priv->body_view), NULL, &gdk_y, NULL);
1335                 event->y = (gdouble) gdk_y;
1336         }
1337         return FALSE;
1338 }
1339
1340 static GtkAdjustment *
1341 get_vadjustment (ModestGtkhtmlMsgView *self)
1342 {
1343         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1344
1345         if (!priv->vadj)
1346                 set_vadjustment (self, NULL);
1347
1348         return priv->vadj;
1349
1350 }
1351
1352 static GtkAdjustment *
1353 get_hadjustment (ModestGtkhtmlMsgView *self)
1354 {
1355         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1356
1357         if (!priv->hadj)
1358                 set_hadjustment (self, NULL);
1359
1360         return priv->hadj;
1361
1362 }
1363
1364 static void
1365 set_hadjustment (ModestGtkhtmlMsgView *self, GtkAdjustment *hadj)
1366 {
1367         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1368         gboolean value_changed;
1369
1370         if (hadj && hadj == priv->hadj)
1371                 return;
1372
1373         if (!hadj)
1374                 hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0,0.0,0.0,0.0,0.0,0.0));
1375         disconnect_hadjustment (self);
1376         g_object_ref (G_OBJECT (hadj));
1377         gtk_object_sink (GTK_OBJECT (hadj));
1378         priv->hadj = hadj;
1379         set_hadjustment_values (self, &value_changed);
1380
1381         g_signal_connect (hadj, "value_changed", G_CALLBACK (adjustment_value_changed),
1382                           self);
1383
1384         gtk_adjustment_changed (hadj);
1385         if (value_changed)
1386                 gtk_adjustment_value_changed (hadj);
1387         else
1388                 adjustment_value_changed (hadj, self);
1389
1390         g_object_notify (G_OBJECT (self), "hadjustment");
1391 }
1392
1393 static void
1394 set_vadjustment (ModestGtkhtmlMsgView *self, GtkAdjustment *vadj)
1395 {
1396         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1397         gboolean value_changed;
1398
1399         if (vadj && vadj == priv->vadj)
1400                 return;
1401
1402         if (!vadj)
1403                 vadj = (GtkAdjustment *) gtk_adjustment_new (0.0,0.0,0.0,0.0,0.0,0.0);
1404         disconnect_vadjustment (self);
1405         g_object_ref (G_OBJECT (vadj));
1406         gtk_object_sink (GTK_OBJECT (vadj));
1407         priv->vadj = vadj;
1408         set_vadjustment_values (self, &value_changed);
1409
1410         g_signal_connect (vadj, "value_changed", G_CALLBACK (adjustment_value_changed),
1411                           self);
1412
1413         gtk_adjustment_changed (vadj);
1414         if (value_changed)
1415                 gtk_adjustment_value_changed (vadj);
1416         else
1417                 adjustment_value_changed (vadj, self);
1418
1419         g_object_notify (G_OBJECT (self), "vadjustment");
1420 }
1421
1422 static void
1423 set_shadow_type (ModestGtkhtmlMsgView *self,
1424                  GtkShadowType shadow_type)
1425 {
1426         ModestGtkhtmlMsgViewPrivate *priv;
1427         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
1428
1429         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1430
1431         if (priv->shadow_type != shadow_type) {
1432                 priv->shadow_type = shadow_type;
1433
1434                 if (GTK_WIDGET_VISIBLE (self)) {
1435                         gtk_widget_size_allocate (GTK_WIDGET (self), &(GTK_WIDGET (self)->allocation));
1436                         gtk_widget_queue_draw (GTK_WIDGET (self));
1437                 }
1438                 g_object_notify (G_OBJECT (self), "shadow-type");
1439         }
1440 }
1441
1442 static GtkShadowType
1443 get_shadow_type (ModestGtkhtmlMsgView *self)
1444 {
1445         ModestGtkhtmlMsgViewPrivate *priv;
1446         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), GTK_SHADOW_NONE);
1447         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1448
1449         return priv->shadow_type;
1450 }
1451
1452 GtkWidget*
1453 modest_msg_view_new (TnyMsg *msg)
1454 {
1455         GObject *obj;
1456         ModestGtkhtmlMsgView* self;
1457
1458         obj  = G_OBJECT(g_object_new(MODEST_TYPE_GTKHTML_MSG_VIEW, NULL));
1459         self = MODEST_GTKHTML_MSG_VIEW(obj);
1460         tny_msg_view_set_msg (TNY_MSG_VIEW (self), msg);
1461
1462         return GTK_WIDGET(self);
1463 }
1464
1465 #ifdef MAEMO_CHANGES
1466 static void
1467 on_tap_and_hold (GtkWidget *widget,
1468                  gpointer data)
1469 {
1470         ModestGtkhtmlMsgView *self = (ModestGtkhtmlMsgView *) data;
1471         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1472
1473         g_signal_emit_by_name (G_OBJECT (self), "link-contextual", priv->last_url);
1474 }
1475
1476 static gboolean
1477 on_tap_and_hold_query (GtkWidget *widget,
1478                        GdkEvent *event,
1479                        gpointer data)
1480 {
1481         ModestGtkhtmlMsgView *self = (ModestGtkhtmlMsgView *) data;
1482         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1483
1484         /* Don't show the tap and hold animation if no url below */
1485         return (priv->last_url == NULL);
1486 }
1487 #endif
1488
1489 static void
1490 on_recpt_activated (ModestMailHeaderView *header_view,
1491                     const gchar *address,
1492                     ModestGtkhtmlMsgView *self)
1493 {
1494         g_signal_emit_by_name (G_OBJECT (self), "recpt-activated", address);
1495 }
1496
1497 static void
1498 on_show_details (ModestMailHeaderView *header_view,
1499                  ModestGtkhtmlMsgView *self)
1500 {
1501         g_signal_emit_by_name (G_OBJECT (self), "show-details");
1502 }
1503
1504 static void
1505 on_attachment_activated (ModestAttachmentsView * att_view, TnyMimePart *mime_part, gpointer self)
1506 {
1507
1508         g_signal_emit_by_name (G_OBJECT(self), "attachment_clicked", mime_part);
1509 }
1510
1511 static void
1512 request_fetch_images (ModestGtkhtmlMsgView *self)
1513 {
1514         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1515         TnyMimePart *part;
1516
1517         /* The message could have not been downloaded yet */
1518         if (priv->msg) {
1519                 modest_mime_part_view_set_view_images (MODEST_MIME_PART_VIEW (priv->body_view), TRUE);
1520                 part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (priv->body_view));
1521                 if (part) {
1522                         tny_mime_part_view_set_part (TNY_MIME_PART_VIEW (priv->body_view), part);
1523                         g_object_unref (part);
1524                 }
1525                 tny_msg_set_allow_external_images (TNY_MSG (priv->msg), TRUE);
1526         }
1527 }
1528
1529 static void
1530 set_branding (ModestGtkhtmlMsgView *self, const gchar *brand_name, const GdkPixbuf *brand_icon)
1531 {
1532         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1533
1534         modest_mail_header_view_set_branding (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view), brand_name, brand_icon);
1535 }
1536
1537 static gboolean
1538 has_blocked_external_images (ModestGtkhtmlMsgView *self)
1539 {
1540         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1541
1542         return (modest_mime_part_view_has_external_images (MODEST_MIME_PART_VIEW (priv->body_view)) &&
1543                 !modest_mime_part_view_get_view_images (MODEST_MIME_PART_VIEW (priv->body_view)));
1544 }
1545
1546 static gboolean
1547 on_activate_link (GtkWidget *widget, const gchar *uri, ModestGtkhtmlMsgView *self)
1548 {
1549         gboolean result;
1550         g_return_val_if_fail (self, FALSE);
1551
1552         g_signal_emit_by_name (G_OBJECT(self), "activate-link", uri, &result);
1553
1554         return result;
1555 }
1556
1557
1558 static gboolean
1559 on_link_hover (GtkWidget *widget, const gchar *uri, ModestGtkhtmlMsgView *self)
1560 {
1561         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1562         gboolean result;
1563
1564         g_free (priv->last_url);
1565         priv->last_url = g_strdup (uri);
1566
1567         g_signal_emit_by_name (G_OBJECT(self), "link-hover", uri, &result);
1568
1569         return result;
1570 }
1571
1572 static void
1573 on_limit_error (GtkWidget *widget, ModestGtkhtmlMsgView *msg_view)
1574 {
1575         g_signal_emit_by_name (G_OBJECT (msg_view), "limit-error");
1576 }
1577
1578
1579 static TnyMimePart *
1580 find_cid_image (TnyMsg *msg, const gchar *cid)
1581 {
1582         TnyMimePart *part = NULL;
1583         TnyList *parts;
1584         TnyIterator *iter;
1585
1586         g_return_val_if_fail (msg, NULL);
1587         g_return_val_if_fail (cid, NULL);
1588
1589         parts  = TNY_LIST (tny_simple_list_new());
1590
1591         tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
1592         iter   = tny_list_create_iterator (parts);
1593
1594         while (!tny_iterator_is_done(iter)) {
1595                 const gchar *part_cid;
1596
1597                 part = TNY_MIME_PART(tny_iterator_get_current(iter));
1598                 part_cid = tny_mime_part_get_content_id (part);
1599
1600                 /* if there is no content id, try the content location;
1601                  * this is what Outlook seems to use when it converts
1602                  * it's internal richtext to html
1603                  */
1604                 if (!part_cid)
1605                         part_cid = tny_mime_part_get_content_location (part);
1606
1607                 if (part_cid && strcmp (cid, part_cid) == 0)
1608                         break;
1609
1610                 if (tny_mime_part_content_type_is (part, "multipart/related")) {
1611                         TnyList *related_parts = TNY_LIST (tny_simple_list_new ());
1612                         TnyIterator *related_iter = NULL;
1613                         TnyMimePart *related_part = NULL;
1614
1615                         tny_mime_part_get_parts (part, related_parts);
1616                         related_iter = tny_list_create_iterator (related_parts);
1617
1618                         while (!tny_iterator_is_done (related_iter)) {
1619                                 related_part = TNY_MIME_PART (tny_iterator_get_current (related_iter));
1620                                 part_cid = tny_mime_part_get_content_id (related_part);
1621                                 if (part_cid && strcmp (cid, part_cid) == 0) {
1622                                         break;
1623                                 }
1624                                 g_object_unref (related_part);
1625                                 related_part = NULL;
1626                                 tny_iterator_next (related_iter);
1627                         }
1628
1629                         g_object_unref (related_iter);
1630                         g_object_unref (related_parts);
1631                         if (related_part != NULL) {
1632                                 g_object_unref (part);
1633                                 part = related_part;
1634                                 break;
1635                         }
1636                 }
1637
1638                 g_object_unref (G_OBJECT(part));
1639
1640                 part = NULL;
1641                 tny_iterator_next (iter);
1642         }
1643
1644         g_object_unref (G_OBJECT(iter));
1645         g_object_unref (G_OBJECT(parts));
1646
1647         return part;
1648 }
1649
1650
1651 static gboolean
1652 on_fetch_url (GtkWidget *widget, const gchar *uri,
1653               TnyStream *stream, ModestGtkhtmlMsgView *self)
1654 {
1655         ModestGtkhtmlMsgViewPrivate *priv;
1656         const gchar* my_uri;
1657         TnyMimePart *part = NULL;
1658
1659
1660
1661         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1662
1663         /*
1664          * we search for either something starting with cid:, or something
1665          * with no prefix at all; this latter case occurs when sending mails
1666          * with MS Outlook in rich-text mode, and 'attach-as-object
1667          */
1668         if (g_str_has_prefix (uri, "cid:"))
1669                 my_uri = uri + 4;  /* +4 ==> skip "cid:" */
1670         else
1671                 my_uri = uri;
1672
1673         /* now try to find the embedded image */
1674         part = find_cid_image (priv->msg, my_uri);
1675
1676         if (!part) {
1677                 if (g_str_has_prefix (uri, "http:")) {
1678                         if (modest_mime_part_view_get_view_images (MODEST_MIME_PART_VIEW (priv->body_view))) {
1679                                 gboolean result = FALSE;
1680                                 g_signal_emit_by_name (self, "fetch-image", uri, stream, &result);
1681                                 return result;
1682                         } else {
1683                                 /* we return immediately to get a "image not found" icon */
1684                                 tny_stream_close (stream);
1685                                 return TRUE;
1686                         }
1687                 } else {
1688                         return FALSE;
1689                 }
1690         }
1691
1692         tny_mime_part_decode_to_stream ((TnyMimePart*)part, stream, NULL);
1693         tny_stream_close (stream);
1694         g_object_unref (G_OBJECT(part));
1695         return TRUE;
1696 }
1697
1698 static void
1699 set_message (ModestGtkhtmlMsgView *self, TnyMsg *msg, TnyMimePart *other_body)
1700 {
1701         TnyMimePart *body;
1702         ModestGtkhtmlMsgViewPrivate *priv;
1703         TnyHeader *header;
1704         GtkAdjustment *html_vadj;
1705
1706         g_return_if_fail (self);
1707
1708         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE(self);
1709         modest_mail_header_view_set_loading (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view), FALSE);
1710         gtk_widget_set_no_show_all (priv->mail_header_view, FALSE);
1711         modest_mime_part_view_set_view_images (MODEST_MIME_PART_VIEW (priv->body_view), FALSE);
1712
1713         html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
1714         html_vadj->upper = 0;
1715         html_vadj->page_size = 0;
1716         g_signal_emit_by_name (G_OBJECT (html_vadj), "changed");
1717
1718         gtk_widget_set_size_request (GTK_WIDGET (priv->body_view), 1, 1);
1719         gtk_widget_set_size_request (GTK_WIDGET (priv->body_view), -1, -1);
1720
1721         gtk_widget_queue_resize (GTK_WIDGET (priv->body_view));
1722
1723         if (msg != priv->msg) {
1724                 if (priv->msg)
1725                         g_object_unref (G_OBJECT(priv->msg));
1726                 if (msg)
1727                         g_object_ref   (G_OBJECT(msg));
1728                 priv->msg = msg;
1729         }
1730
1731         if (!msg) {
1732                 tny_header_view_clear (TNY_HEADER_VIEW (priv->mail_header_view));
1733                 modest_attachments_view_set_message (MODEST_ATTACHMENTS_VIEW (priv->attachments_view), NULL);
1734                 gtk_widget_hide_all (priv->mail_header_view);
1735                 gtk_widget_hide_all (priv->attachments_box);
1736 #ifdef MODEST_TOOKIT_HILDON2
1737                 gtk_widget_hide_all (priv->priority_box);
1738 #endif
1739                 gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
1740                 tny_mime_part_view_clear (TNY_MIME_PART_VIEW (priv->body_view));
1741                 gtk_widget_queue_resize (GTK_WIDGET(self));
1742                 gtk_widget_queue_draw (GTK_WIDGET(self));
1743                 return;
1744         }
1745
1746         header = tny_msg_get_header (msg);
1747         tny_header_view_set_header (TNY_HEADER_VIEW (priv->mail_header_view), header);
1748         g_object_unref (header);
1749
1750         modest_attachments_view_set_message (MODEST_ATTACHMENTS_VIEW (priv->attachments_view),
1751                                              other_body?NULL:msg);
1752
1753         modest_mime_part_view_set_view_images (MODEST_MIME_PART_VIEW (priv->body_view), tny_msg_get_allow_external_images (msg));
1754
1755         if (other_body) {
1756                 body = other_body;
1757                 g_object_ref (body);
1758         } else {
1759                 body = modest_tny_msg_find_body_part (msg, TRUE);
1760         }
1761         if (body) {
1762                 ModestAttachmentsView *widget;
1763
1764                 tny_mime_part_view_set_part (TNY_MIME_PART_VIEW (priv->body_view), body);
1765                 g_object_unref (body);
1766                 widget = MODEST_ATTACHMENTS_VIEW (priv->attachments_view);
1767
1768                 if (modest_attachments_view_has_attachments (widget)) {
1769                         GtkLabel *label;
1770                         GList *children = NULL;
1771                         gchar *text = NULL;
1772                         /* Ugly but... */
1773                         children = gtk_container_get_children (GTK_CONTAINER (priv->attachments_box));
1774                         label = GTK_LABEL (children->data);
1775                         gtk_widget_show_all (priv->attachments_box);
1776 #ifdef MODEST_TOOLKIT_HILDON2
1777                         if (modest_attachments_view_get_num_attachments (widget) > 1) {
1778                                 text = _("mail_va_attachments");
1779                         } else {
1780                                 text = _("mail_va_attachment");
1781                         }
1782 #else
1783                                 text = _("mail_va_attachment");
1784 #endif
1785                         gtk_label_set_text (label, text);
1786                 } else {
1787                         gtk_widget_hide_all (priv->attachments_box);
1788                 }
1789
1790         } else {
1791                 tny_mime_part_view_clear (TNY_MIME_PART_VIEW (priv->body_view));
1792         }
1793
1794         /* Refresh priority */
1795         set_priority (self, tny_header_get_flags (header));
1796
1797         gtk_widget_show (priv->body_view);
1798 #ifdef MODEST_TOOLKIT_HILDON2
1799         gtk_widget_set_no_show_all (priv->priority_box, TRUE);
1800 #endif
1801         gtk_widget_set_no_show_all (priv->attachments_box, TRUE);
1802         gtk_widget_show_all (priv->mail_header_view);
1803         gtk_widget_set_no_show_all (priv->attachments_box, FALSE);
1804 #ifdef MODEST_TOOLKIT_HILDON2
1805         gtk_widget_set_no_show_all (priv->priority_box, FALSE);
1806 #endif
1807         gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
1808         gtk_widget_queue_resize (GTK_WIDGET(self));
1809         gtk_widget_queue_draw (GTK_WIDGET(self));
1810
1811         if (priv->hadj != NULL)
1812                 priv->hadj->value = 0.0;
1813         if (priv->vadj != NULL)
1814                 priv->vadj->value = 0.0;
1815
1816         g_signal_emit_by_name (G_OBJECT (html_vadj), "changed");
1817
1818         /* This is a hack to force reallocation of scroll after drawing all the stuff. This
1819          * makes the html view get the proper and expected size and prevent being able to scroll
1820          * the buffer when it shouldn't be scrollable */
1821         g_object_ref (self);
1822         g_timeout_add (250, (GSourceFunc) idle_readjust_scroll, self);
1823 }
1824
1825 static void
1826 set_header (ModestGtkhtmlMsgView *self, TnyHeader *header)
1827 {
1828         ModestGtkhtmlMsgViewPrivate *priv;
1829         GtkAdjustment *html_vadj;
1830
1831         g_return_if_fail (self);
1832
1833         if (header == NULL) {
1834                 set_message (self, NULL, NULL);
1835                 return;
1836         }
1837
1838         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE(self);
1839         modest_mail_header_view_set_loading (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view), TRUE);
1840         gtk_widget_set_no_show_all (priv->mail_header_view, FALSE);
1841         modest_mime_part_view_set_view_images (MODEST_MIME_PART_VIEW (priv->body_view), FALSE);
1842
1843         html_vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->html_scroll));
1844         html_vadj->upper = 0;
1845         html_vadj->page_size = 0;
1846         g_signal_emit_by_name (G_OBJECT (html_vadj), "changed");
1847
1848         gtk_widget_set_size_request (GTK_WIDGET (priv->body_view), 1, 1);
1849         gtk_widget_set_size_request (GTK_WIDGET (priv->body_view), -1, -1);
1850         gtk_widget_queue_resize (GTK_WIDGET (priv->body_view));
1851
1852         if (priv->msg) {
1853                 g_object_unref (G_OBJECT(priv->msg));
1854         }
1855         priv->msg = NULL;
1856
1857         tny_header_view_set_header (TNY_HEADER_VIEW (priv->mail_header_view), header);
1858         modest_attachments_view_set_message (MODEST_ATTACHMENTS_VIEW (priv->attachments_view), NULL);
1859         gtk_widget_show_all (priv->mail_header_view);
1860         gtk_widget_hide_all (priv->attachments_box);
1861 #ifdef MODEST_TOOLKIT_HILDON2
1862         gtk_widget_hide_all (priv->priority_box);
1863 #endif
1864         gtk_widget_set_no_show_all (priv->mail_header_view, TRUE);
1865         tny_mime_part_view_clear (TNY_MIME_PART_VIEW (priv->body_view));
1866         gtk_widget_queue_resize (GTK_WIDGET(self));
1867         gtk_widget_queue_draw (GTK_WIDGET(self));
1868 }
1869
1870
1871 static TnyMsg*
1872 get_message (ModestGtkhtmlMsgView *self)
1873 {
1874         TnyMsg *msg;
1875
1876         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), NULL);
1877
1878         msg = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE(self)->msg;
1879
1880         if (msg)
1881                 g_object_ref (msg);
1882
1883         return msg;
1884 }
1885
1886 static gboolean
1887 is_empty (ModestGtkhtmlMsgView *self)
1888 {
1889         ModestGtkhtmlMsgViewPrivate *priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1890
1891         return modest_mime_part_view_is_empty (MODEST_MIME_PART_VIEW (priv->body_view));
1892 }
1893
1894 static void
1895 set_zoom (ModestGtkhtmlMsgView *self, gdouble zoom)
1896 {
1897         ModestGtkhtmlMsgViewPrivate *priv;
1898
1899         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
1900         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1901
1902         modest_zoomable_set_zoom (MODEST_ZOOMABLE(priv->body_view), zoom);
1903
1904         gtk_widget_queue_resize (priv->body_view);
1905 }
1906
1907 static gdouble
1908 get_zoom (ModestGtkhtmlMsgView *self)
1909 {
1910         ModestGtkhtmlMsgViewPrivate *priv;
1911
1912         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), 1.0);
1913         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1914
1915         return modest_zoomable_get_zoom (MODEST_ZOOMABLE (priv->body_view));
1916 }
1917
1918 static TnyHeaderFlags
1919 get_priority (ModestGtkhtmlMsgView *self)
1920 {
1921         ModestGtkhtmlMsgViewPrivate *priv;
1922
1923         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), 0);
1924
1925         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1926
1927         return modest_mail_header_view_get_priority (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view));
1928 }
1929
1930 static void
1931 set_priority (ModestGtkhtmlMsgView *self, TnyHeaderFlags flags)
1932 {
1933         ModestGtkhtmlMsgViewPrivate *priv;
1934
1935         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
1936         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1937
1938         modest_mail_header_view_set_priority (MODEST_MAIL_HEADER_VIEW (priv->mail_header_view), flags);
1939
1940 #ifdef MODEST_TOOLKIT_HILDON2
1941         gboolean show_priority = FALSE;
1942         TnyHeaderFlags priority_flags;
1943
1944         priority_flags = flags & TNY_HEADER_FLAG_PRIORITY_MASK;
1945         if (priority_flags == TNY_HEADER_FLAG_HIGH_PRIORITY) {
1946                 show_priority = TRUE;
1947                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->priority_icon), MODEST_HEADER_ICON_HIGH, GTK_ICON_SIZE_MENU);
1948         } else if (priority_flags == TNY_HEADER_FLAG_LOW_PRIORITY) {
1949                 show_priority = TRUE;
1950                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->priority_icon), MODEST_HEADER_ICON_LOW, GTK_ICON_SIZE_MENU);
1951         }
1952
1953         if (show_priority && MODEST_IS_COMPACT_MAIL_HEADER_VIEW (priv->mail_header_view)) {
1954                 gtk_widget_show_all  (priv->priority_box);
1955         } else {
1956                 gtk_widget_hide_all (priv->priority_box);
1957         }
1958 #endif
1959
1960 }
1961
1962 /* INCREMENTAL SEARCH IMPLEMENTATION */
1963
1964 static gboolean
1965 search (ModestGtkhtmlMsgView *self, const gchar *search)
1966 {
1967         ModestGtkhtmlMsgViewPrivate *priv;
1968         gboolean result;
1969         GtkAdjustment *vadj, *tmp_vadj;
1970         gdouble y_offset;
1971
1972         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), FALSE);
1973
1974         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
1975         vadj = gtk_layout_get_vadjustment (GTK_LAYOUT (priv->body_view));
1976         g_object_ref (vadj);
1977         tmp_vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, vadj->lower, vadj->upper, vadj->step_increment, 32.0, 32.0));
1978         gtk_layout_set_vadjustment (GTK_LAYOUT (priv->body_view), tmp_vadj);
1979         result = modest_isearch_view_search (MODEST_ISEARCH_VIEW (priv->body_view),
1980                                              search);
1981
1982         if (result) {
1983                 gint x, y, w, h;
1984                 gdouble offset_top, offset_bottom;
1985                 GtkAdjustment *adj;
1986                 if (modest_isearch_view_get_selection_area (MODEST_ISEARCH_VIEW (priv->body_view), &x, &y, &w, &h)) {
1987                         offset_top = (gdouble) (priv->headers_box->requisition.height + y);
1988                         offset_bottom = (gdouble) (priv->headers_box->requisition.height + y + h);
1989                         adj = GTK_ADJUSTMENT (priv->vadj);
1990                         if (offset_top < adj->value)
1991                                 gtk_adjustment_set_value (adj, offset_top + adj->page_increment - adj->page_size);
1992                         else if (offset_bottom > adj->value + adj->page_increment)
1993                                 gtk_adjustment_set_value (adj, offset_bottom - adj->page_increment);
1994                 }
1995         }
1996
1997         y_offset = tmp_vadj->value;
1998         gtk_layout_set_vadjustment (GTK_LAYOUT (priv->body_view), vadj);
1999         g_object_unref (vadj);
2000
2001         return result;
2002 }
2003
2004 static gboolean
2005 search_next (ModestGtkhtmlMsgView *self)
2006 {
2007         ModestGtkhtmlMsgViewPrivate *priv;
2008         gboolean result;
2009
2010         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), FALSE);
2011
2012         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
2013         result = modest_isearch_view_search_next (MODEST_ISEARCH_VIEW (priv->body_view));
2014
2015         if (result) {
2016                 gint x, y, w, h;
2017                 gdouble offset_top, offset_bottom;
2018                 GtkAdjustment *adj;
2019
2020                 if (modest_isearch_view_get_selection_area (MODEST_ISEARCH_VIEW (priv->body_view), &x, &y, &w, &h)) {
2021                         offset_top = (gdouble) (priv->headers_box->requisition.height + y);
2022                         offset_bottom = (gdouble) (priv->headers_box->requisition.height + y + h);
2023                         adj = GTK_ADJUSTMENT (priv->vadj);
2024                         if (offset_top < adj->value)
2025                                 gtk_adjustment_set_value (adj, offset_top + adj->page_increment - adj->page_size);
2026                         else if (offset_bottom > adj->value + adj->page_increment)
2027                                 gtk_adjustment_set_value (adj, offset_bottom - adj->page_increment);
2028                 }
2029         }
2030         return result;
2031 }
2032
2033 static TnyList *
2034 get_selected_attachments (ModestGtkhtmlMsgView *self)
2035 {
2036         ModestGtkhtmlMsgViewPrivate *priv;
2037
2038         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), NULL);
2039         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
2040
2041         return modest_attachments_view_get_selection (MODEST_ATTACHMENTS_VIEW (priv->attachments_view));
2042
2043 }
2044
2045 static TnyList *
2046 get_attachments (ModestGtkhtmlMsgView *self)
2047 {
2048         ModestGtkhtmlMsgViewPrivate *priv;
2049
2050         g_return_val_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self), NULL);
2051         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
2052
2053         return modest_attachments_view_get_attachments (MODEST_ATTACHMENTS_VIEW (priv->attachments_view));
2054
2055 }
2056
2057 static void
2058 grab_focus (ModestGtkhtmlMsgView *self)
2059 {
2060         ModestGtkhtmlMsgViewPrivate *priv = NULL;
2061
2062         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
2063         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
2064
2065         gtk_widget_grab_focus (priv->body_view);
2066 }
2067
2068 static void
2069 remove_attachment (ModestGtkhtmlMsgView *self, TnyMimePart *attachment)
2070 {
2071         ModestGtkhtmlMsgViewPrivate *priv;
2072
2073         g_return_if_fail (MODEST_IS_GTKHTML_MSG_VIEW (self));
2074         g_return_if_fail (TNY_IS_MIME_PART (attachment));
2075         priv = MODEST_GTKHTML_MSG_VIEW_GET_PRIVATE (self);
2076
2077         modest_attachments_view_remove_attachment (MODEST_ATTACHMENTS_VIEW (priv->attachments_view),
2078                                                    attachment);
2079
2080 }
2081
2082 /* TNY HEADER VIEW IMPLEMENTATION */
2083
2084 static void
2085 tny_header_view_init (gpointer g, gpointer iface_data)
2086 {
2087         TnyHeaderViewIface *klass = (TnyHeaderViewIface *)g;
2088
2089         klass->set_header = modest_msg_view_set_header;
2090         klass->clear = modest_msg_view_clear_header;
2091
2092         return;
2093 }
2094
2095 static void
2096 modest_msg_view_set_header (TnyHeaderView *self, TnyHeader *header)
2097 {
2098         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_header_func (self, header);
2099 }
2100
2101
2102 static void
2103 modest_msg_view_set_header_default (TnyHeaderView *self, TnyHeader *header)
2104 {
2105         set_header (MODEST_GTKHTML_MSG_VIEW (self), header);
2106 }
2107
2108 static void
2109 modest_msg_view_clear_header (TnyHeaderView *self)
2110 {
2111         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->clear_header_func (self);
2112 }
2113
2114
2115 static void
2116 modest_msg_view_clear_header_default (TnyHeaderView *self)
2117 {
2118         set_message (MODEST_GTKHTML_MSG_VIEW (self), NULL, NULL);
2119 }
2120
2121 /* TNY MSG IMPLEMENTATION */
2122
2123 static void
2124 tny_msg_view_init (gpointer g, gpointer iface_data)
2125 {
2126         TnyMsgViewIface *klass = (TnyMsgViewIface *)g;
2127
2128         klass->get_msg = modest_msg_view_get_msg;
2129         klass->set_msg = modest_msg_view_set_msg;
2130         klass->set_unavailable = modest_msg_view_set_unavailable;
2131         klass->clear = modest_msg_view_clear;
2132         klass->create_mime_part_view_for = modest_msg_view_create_mime_part_view_for;
2133         klass->create_new_inline_viewer = modest_msg_view_create_new_inline_viewer;
2134
2135         return;
2136 }
2137
2138 static TnyMsg *
2139 modest_msg_view_get_msg (TnyMsgView *self)
2140 {
2141         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_msg_func (self);
2142 }
2143
2144 static TnyMsg *
2145 modest_msg_view_get_msg_default (TnyMsgView *self)
2146 {
2147         return TNY_MSG (tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (self)));
2148 }
2149
2150 static void
2151 modest_msg_view_set_msg (TnyMsgView *self, TnyMsg *msg)
2152 {
2153         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_msg_func (self, msg);
2154 }
2155
2156 static void
2157 modest_msg_view_set_msg_default (TnyMsgView *self, TnyMsg *msg)
2158 {
2159
2160         tny_mime_part_view_set_part (TNY_MIME_PART_VIEW (self), TNY_MIME_PART (msg));
2161
2162         return;
2163 }
2164
2165 static void
2166 modest_msg_view_set_unavailable (TnyMsgView *self)
2167 {
2168         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_unavailable_func (self);
2169 }
2170
2171 static void
2172 modest_msg_view_set_unavailable_default (TnyMsgView *self)
2173 {
2174         tny_msg_view_clear (self);
2175
2176         return;
2177 }
2178
2179 static void
2180 modest_msg_view_clear (TnyMsgView *self)
2181 {
2182         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->clear_func (self);
2183 }
2184
2185 static void
2186 modest_msg_view_clear_default (TnyMsgView *self)
2187 {
2188         set_message (MODEST_GTKHTML_MSG_VIEW (self), NULL, NULL);
2189 }
2190
2191 static TnyMimePartView*
2192 modest_msg_view_create_mime_part_view_for (TnyMsgView *self, TnyMimePart *part)
2193 {
2194         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->create_mime_part_view_for_func (self, part);
2195 }
2196
2197 static TnyMimePartView*
2198 modest_msg_view_create_mime_part_view_for_default (TnyMsgView *self, TnyMimePart *part)
2199 {
2200         g_warning ("modest_msg_view_create_mime_part_view_for_default is not implemented");
2201         return NULL;
2202 }
2203
2204 static TnyMsgView*
2205 modest_msg_view_create_new_inline_viewer (TnyMsgView *self)
2206 {
2207         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->create_new_inline_viewer_func (self);
2208 }
2209
2210 static TnyMsgView*
2211 modest_msg_view_create_new_inline_viewer_default (TnyMsgView *self)
2212 {
2213         g_warning ("modest_msg_view_create_new_inline_viewer_default is not implemented");
2214
2215         return NULL;
2216 }
2217
2218 /* TNY MIME PART IMPLEMENTATION */
2219
2220 static void
2221 tny_mime_part_view_init (gpointer g, gpointer iface_data)
2222 {
2223         TnyMimePartViewIface *klass = (TnyMimePartViewIface *)g;
2224
2225         klass->get_part = modest_msg_view_mp_get_part;
2226         klass->set_part = modest_msg_view_mp_set_part;
2227         klass->clear = modest_msg_view_mp_clear;
2228
2229         return;
2230 }
2231
2232 static TnyMimePart*
2233 modest_msg_view_mp_get_part (TnyMimePartView *self)
2234 {
2235         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_part_func (self);
2236 }
2237
2238
2239 static TnyMimePart*
2240 modest_msg_view_mp_get_part_default (TnyMimePartView *self)
2241 {
2242         return TNY_MIME_PART (get_message (MODEST_GTKHTML_MSG_VIEW (self)));
2243 }
2244
2245 static void
2246 modest_msg_view_mp_set_part (TnyMimePartView *self,
2247                              TnyMimePart *part)
2248 {
2249         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_part_func (self, part);
2250 }
2251
2252 static void
2253 modest_msg_view_mp_set_part_default (TnyMimePartView *self,
2254                                      TnyMimePart *part)
2255 {
2256         g_return_if_fail ((part == NULL) || TNY_IS_MSG (part));
2257
2258         set_message (MODEST_GTKHTML_MSG_VIEW (self), TNY_MSG (part), NULL);
2259 }
2260
2261 static void
2262 modest_msg_view_mp_clear (TnyMimePartView *self)
2263 {
2264         tny_msg_view_clear (TNY_MSG_VIEW (self));
2265 }
2266
2267 /* MODEST MIME PART VIEW IMPLEMENTATION */
2268
2269 static void
2270 modest_mime_part_view_init (gpointer g, gpointer iface_data)
2271 {
2272         ModestMimePartViewIface *klass = (ModestMimePartViewIface *)g;
2273
2274         klass->is_empty_func = modest_msg_view_mp_is_empty;
2275
2276         return;
2277 }
2278
2279 static gboolean
2280 modest_msg_view_mp_is_empty (ModestMimePartView *self)
2281 {
2282         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->is_empty_func (self);
2283 }
2284
2285 static gboolean
2286 modest_msg_view_mp_is_empty_default (ModestMimePartView *self)
2287 {
2288         return is_empty (MODEST_GTKHTML_MSG_VIEW (self));
2289 }
2290
2291 /* MODEST ZOOMABLE IMPLEMENTATION */
2292 static void
2293 modest_zoomable_init (gpointer g, gpointer iface_data)
2294 {
2295         ModestZoomableIface *klass = (ModestZoomableIface *)g;
2296
2297         klass->get_zoom_func = modest_msg_view_get_zoom;
2298         klass->set_zoom_func = modest_msg_view_set_zoom;
2299         klass->zoom_minus_func = modest_msg_view_zoom_minus;
2300         klass->zoom_plus_func = modest_msg_view_zoom_plus;
2301
2302         return;
2303 }
2304
2305 static gdouble
2306 modest_msg_view_get_zoom (ModestZoomable *self)
2307 {
2308         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_zoom_func (self);
2309 }
2310
2311 static gdouble
2312 modest_msg_view_get_zoom_default (ModestZoomable *self)
2313 {
2314         return get_zoom (MODEST_GTKHTML_MSG_VIEW (self));
2315 }
2316
2317 static void
2318 modest_msg_view_set_zoom (ModestZoomable *self, gdouble value)
2319 {
2320         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_zoom_func (self, value);
2321 }
2322
2323 static void
2324 modest_msg_view_set_zoom_default (ModestZoomable *self, gdouble value)
2325 {
2326         set_zoom (MODEST_GTKHTML_MSG_VIEW (self), value);
2327 }
2328
2329 static gboolean
2330 modest_msg_view_zoom_minus (ModestZoomable *self)
2331 {
2332         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->zoom_minus_func (self);
2333 }
2334
2335 static gboolean
2336 modest_msg_view_zoom_minus_default (ModestZoomable *self)
2337 {
2338         /* operation not supported in ModestMsgView */
2339         return FALSE;
2340 }
2341
2342 static gboolean
2343 modest_msg_view_zoom_plus (ModestZoomable *self)
2344 {
2345         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->zoom_plus_func (self);
2346 }
2347
2348 static gboolean
2349 modest_msg_view_zoom_plus_default (ModestZoomable *self)
2350 {
2351         /* operation not supported in ModestMsgView */
2352         return FALSE;
2353 }
2354
2355 /* MODEST ISEARCH VIEW IMPLEMENTATION */
2356 static void
2357 modest_isearch_view_init (gpointer g, gpointer iface_data)
2358 {
2359         ModestISearchViewIface *klass = (ModestISearchViewIface *)g;
2360
2361         klass->search_func = modest_msg_view_search;
2362         klass->search_next_func = modest_msg_view_search_next;
2363
2364         return;
2365 }
2366
2367 static gboolean
2368 modest_msg_view_search (ModestISearchView *self, const gchar *string)
2369 {
2370         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->search_func (self, string);
2371 }
2372
2373 static gboolean
2374 modest_msg_view_search_default (ModestISearchView *self, const gchar *string)
2375 {
2376         return search (MODEST_GTKHTML_MSG_VIEW (self), string);
2377 }
2378
2379 static gboolean
2380 modest_msg_view_search_next (ModestISearchView *self)
2381 {
2382         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->search_next_func (self);
2383 }
2384
2385 static gboolean
2386 modest_msg_view_search_next_default (ModestISearchView *self)
2387 {
2388         return search_next (MODEST_GTKHTML_MSG_VIEW (self));
2389 }
2390
2391 /* MODEST MSG VIEW IMPLEMENTATION */
2392 static void
2393 modest_msg_view_init (gpointer g, gpointer iface_data)
2394 {
2395         ModestMsgViewIface *klass = (ModestMsgViewIface *)g;
2396
2397         klass->set_msg_with_other_body_func = modest_gtkhtml_msg_view_set_msg_with_other_body;
2398         klass->get_vadjustment_func = modest_gtkhtml_msg_view_get_vadjustment;
2399         klass->get_hadjustment_func = modest_gtkhtml_msg_view_get_hadjustment;
2400         klass->set_vadjustment_func = modest_gtkhtml_msg_view_set_vadjustment;
2401         klass->set_hadjustment_func = modest_gtkhtml_msg_view_set_hadjustment;
2402         klass->set_shadow_type_func = modest_gtkhtml_msg_view_set_shadow_type;
2403         klass->get_shadow_type_func = modest_gtkhtml_msg_view_get_shadow_type;
2404         klass->get_priority_func = modest_gtkhtml_msg_view_get_priority;
2405         klass->set_priority_func = modest_gtkhtml_msg_view_set_priority;
2406         klass->get_selected_attachments_func = modest_gtkhtml_msg_view_get_selected_attachments;
2407         klass->get_attachments_func = modest_gtkhtml_msg_view_get_attachments;
2408         klass->grab_focus_func = modest_gtkhtml_msg_view_grab_focus;
2409         klass->remove_attachment_func = modest_gtkhtml_msg_view_remove_attachment;
2410         klass->request_fetch_images_func = modest_gtkhtml_msg_view_request_fetch_images;
2411         klass->set_branding_func = modest_gtkhtml_msg_view_set_branding;
2412         klass->has_blocked_external_images_func = modest_gtkhtml_msg_view_has_blocked_external_images;
2413
2414         return;
2415 }
2416
2417 static void
2418 modest_gtkhtml_msg_view_set_msg_with_other_body (ModestMsgView *self, TnyMsg *msg, TnyMimePart *other_body)
2419 {
2420         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_msg_with_other_body_func (self, msg, other_body);
2421 }
2422
2423 static void
2424 modest_gtkhtml_msg_view_set_msg_with_other_body_default (ModestMsgView *self, TnyMsg *msg, TnyMimePart *other_body)
2425 {
2426         set_message (MODEST_GTKHTML_MSG_VIEW (self), msg, other_body);
2427 }
2428
2429 static GtkAdjustment*
2430 modest_gtkhtml_msg_view_get_vadjustment (ModestMsgView *self)
2431 {
2432         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_vadjustment_func (self);
2433 }
2434
2435 static GtkAdjustment*
2436 modest_gtkhtml_msg_view_get_vadjustment_default (ModestMsgView *self)
2437 {
2438         return get_vadjustment (MODEST_GTKHTML_MSG_VIEW (self));
2439 }
2440
2441 static GtkAdjustment*
2442 modest_gtkhtml_msg_view_get_hadjustment (ModestMsgView *self)
2443 {
2444         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_hadjustment_func (self);
2445 }
2446
2447 static GtkAdjustment*
2448 modest_gtkhtml_msg_view_get_hadjustment_default (ModestMsgView *self)
2449 {
2450         return get_hadjustment (MODEST_GTKHTML_MSG_VIEW (self));
2451 }
2452
2453 static void
2454 modest_gtkhtml_msg_view_set_vadjustment (ModestMsgView *self, GtkAdjustment *adj)
2455 {
2456         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_vadjustment_func (self, adj);
2457 }
2458
2459 static void
2460 modest_gtkhtml_msg_view_set_vadjustment_default (ModestMsgView *self, GtkAdjustment *adj)
2461 {
2462         set_vadjustment (MODEST_GTKHTML_MSG_VIEW (self), adj);
2463 }
2464
2465 static void
2466 modest_gtkhtml_msg_view_set_hadjustment (ModestMsgView *self, GtkAdjustment *adj)
2467 {
2468         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_hadjustment_func (self, adj);
2469 }
2470
2471 static void
2472 modest_gtkhtml_msg_view_set_hadjustment_default (ModestMsgView *self, GtkAdjustment *adj)
2473 {
2474         set_hadjustment (MODEST_GTKHTML_MSG_VIEW (self), adj);
2475 }
2476
2477 static void
2478 modest_gtkhtml_msg_view_set_shadow_type (ModestMsgView *self, GtkShadowType type)
2479 {
2480         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_shadow_type_func (self, type);
2481 }
2482
2483 static void
2484 modest_gtkhtml_msg_view_set_shadow_type_default (ModestMsgView *self, GtkShadowType type)
2485 {
2486         set_shadow_type (MODEST_GTKHTML_MSG_VIEW (self), type);
2487 }
2488
2489 static GtkShadowType
2490 modest_gtkhtml_msg_view_get_shadow_type (ModestMsgView *self)
2491 {
2492         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_shadow_type_func (self);
2493 }
2494
2495 static GtkShadowType
2496 modest_gtkhtml_msg_view_get_shadow_type_default (ModestMsgView *self)
2497 {
2498         return get_shadow_type (MODEST_GTKHTML_MSG_VIEW (self));
2499 }
2500
2501 static void
2502 modest_gtkhtml_msg_view_set_priority (ModestMsgView *self, TnyHeaderFlags flags)
2503 {
2504         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_priority_func (self, flags);
2505 }
2506
2507 static void
2508 modest_gtkhtml_msg_view_set_priority_default (ModestMsgView *self, TnyHeaderFlags flags)
2509 {
2510         set_priority (MODEST_GTKHTML_MSG_VIEW (self), flags);
2511 }
2512
2513 static TnyHeaderFlags
2514 modest_gtkhtml_msg_view_get_priority (ModestMsgView *self)
2515 {
2516         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_priority_func (self);
2517 }
2518
2519 static TnyHeaderFlags
2520 modest_gtkhtml_msg_view_get_priority_default (ModestMsgView *self)
2521 {
2522         return get_priority (MODEST_GTKHTML_MSG_VIEW (self));
2523 }
2524
2525 static TnyList*
2526 modest_gtkhtml_msg_view_get_selected_attachments (ModestMsgView *self)
2527 {
2528         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_selected_attachments_func (self);
2529 }
2530
2531 static TnyList*
2532 modest_gtkhtml_msg_view_get_selected_attachments_default (ModestMsgView *self)
2533 {
2534         return get_selected_attachments (MODEST_GTKHTML_MSG_VIEW (self));
2535 }
2536
2537 static TnyList*
2538 modest_gtkhtml_msg_view_get_attachments (ModestMsgView *self)
2539 {
2540         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->get_attachments_func (self);
2541 }
2542
2543 static TnyList*
2544 modest_gtkhtml_msg_view_get_attachments_default (ModestMsgView *self)
2545 {
2546         return get_attachments (MODEST_GTKHTML_MSG_VIEW (self));
2547 }
2548
2549 static void
2550 modest_gtkhtml_msg_view_grab_focus (ModestMsgView *self)
2551 {
2552         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->grab_focus_func (self);
2553 }
2554
2555 static void
2556 modest_gtkhtml_msg_view_grab_focus_default (ModestMsgView *self)
2557 {
2558         grab_focus (MODEST_GTKHTML_MSG_VIEW (self));
2559 }
2560
2561 static void
2562 modest_gtkhtml_msg_view_remove_attachment (ModestMsgView *self, TnyMimePart *attachment)
2563 {
2564         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->remove_attachment_func (self, attachment);
2565 }
2566
2567 static void
2568 modest_gtkhtml_msg_view_remove_attachment_default (ModestMsgView *self, TnyMimePart *attachment)
2569 {
2570         remove_attachment (MODEST_GTKHTML_MSG_VIEW (self), attachment);
2571 }
2572
2573 static void
2574 modest_gtkhtml_msg_view_request_fetch_images (ModestMsgView *self)
2575 {
2576         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->request_fetch_images_func (self);
2577 }
2578
2579 static void
2580 modest_gtkhtml_msg_view_request_fetch_images_default (ModestMsgView *self)
2581 {
2582         request_fetch_images (MODEST_GTKHTML_MSG_VIEW (self));
2583 }
2584
2585 static void
2586 modest_gtkhtml_msg_view_set_branding (ModestMsgView *self, const gchar *brand_name, const GdkPixbuf *brand_icon)
2587 {
2588         MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->set_branding_func (self, brand_name, brand_icon);
2589 }
2590
2591 static void
2592 modest_gtkhtml_msg_view_set_branding_default (ModestMsgView *self, const gchar *brand_name, const GdkPixbuf *brand_icon)
2593 {
2594         set_branding (MODEST_GTKHTML_MSG_VIEW (self), brand_name, brand_icon);
2595 }
2596
2597 static gboolean
2598 modest_gtkhtml_msg_view_has_blocked_external_images (ModestMsgView *self)
2599 {
2600         return MODEST_GTKHTML_MSG_VIEW_GET_CLASS (self)->has_blocked_external_images_func (self);
2601 }
2602
2603 static gboolean
2604 modest_gtkhtml_msg_view_has_blocked_external_images_default (ModestMsgView *self)
2605 {
2606         return has_blocked_external_images (MODEST_GTKHTML_MSG_VIEW (self));
2607 }